Commit e1f3eec9cc05535b3f3b81f2fb7cd65dd4d1e841 | zig

CMakeLists.txt+32-27

 @@ -474,6 +474,7 @@ set(ZIG_STD_FILES
     "c/linux.zig"
     "c/netbsd.zig"
     "c/windows.zig"
+    "child_process.zig"
     "coff.zig"
     "crypto.zig"
     "crypto/blake2.zig"
 @@ -487,8 +488,8 @@ set(ZIG_STD_FILES
     "crypto/x25519.zig"
     "cstr.zig"
     "debug.zig"
-    "debug/leb128.zig"
     "debug/failing_allocator.zig"
+    "debug/leb128.zig"
     "dwarf.zig"
     "dynamic_library.zig"
     "elf.zig"
 @@ -509,6 +510,10 @@ set(ZIG_STD_FILES
     "fmt/errol/enum3.zig"
     "fmt/errol/lookup.zig"
     "fmt/parse_float.zig"
+    "fs.zig"
+    "fs/file.zig"
+    "fs/get_app_data_dir.zig"
+    "fs/path.zig"
     "hash.zig"
     "hash/adler.zig"
     "hash/crc.zig"
 @@ -517,8 +522,8 @@ set(ZIG_STD_FILES
     "hash_map.zig"
     "heap.zig"
     "io.zig"
-    "io/seekable_stream.zig"
     "io/c_out_stream.zig"
+    "io/seekable_stream.zig"
     "json.zig"
     "lazy_init.zig"
     "linked_list.zig"
 @@ -600,40 +605,39 @@ set(ZIG_STD_FILES
     "mutex.zig"
     "net.zig"
     "os.zig"
-    "os/child_process.zig"
+    "os/bits.zig"
+    "os/bits/darwin.zig"
+    "os/bits/freebsd.zig"
+    "os/bits/linux.zig"
+    "os/bits/linux/arm64.zig"
+    "os/bits/linux/errno.zig"
+    "os/bits/linux/x86_64.zig"
+    "os/bits/netbsd.zig"
+    "os/bits/wasi.zig"
+    "os/bits/windows.zig"
     "os/darwin.zig"
-    "os/darwin/errno.zig"
-    "os/epoch.zig"
-    "os/file.zig"
     "os/freebsd.zig"
-    "os/freebsd/errno.zig"
-    "os/get_app_data_dir.zig"
-    "os/get_user_id.zig"
     "os/linux.zig"
     "os/linux/arm64.zig"
-    "os/linux/errno.zig"
     "os/linux/tls.zig"
     "os/linux/vdso.zig"
     "os/linux/x86_64.zig"
     "os/netbsd.zig"
-    "os/netbsd/errno.zig"
-    "os/path.zig"
-    "os/time.zig"
     "os/uefi.zig"
     "os/wasi.zig"
-    "os/wasi/core.zig"
     "os/windows.zig"
     "os/windows/advapi32.zig"
+    "os/windows/bits.zig"
     "os/windows/error.zig"
     "os/windows/kernel32.zig"
     "os/windows/ntdll.zig"
     "os/windows/ole32.zig"
     "os/windows/shell32.zig"
-    "os/windows/util.zig"
     "os/zen.zig"
     "packed_int_array.zig"
     "pdb.zig"
     "priority_queue.zig"
+    "process.zig"
     "rand.zig"
     "rand/ziggurat.zig"
     "rb.zig"
 @@ -645,17 +649,18 @@ set(ZIG_STD_FILES
     "special/build_runner.zig"
     "special/c.zig"
     "special/compiler_rt.zig"
-    "special/compiler_rt/stack_probe.zig"
-    "special/compiler_rt/arm/aeabi_fcmp.zig"
-    "special/compiler_rt/arm/aeabi_dcmp.zig"
     "special/compiler_rt/addXf3.zig"
+    "special/compiler_rt/arm/aeabi_dcmp.zig"
+    "special/compiler_rt/arm/aeabi_fcmp.zig"
+    "special/compiler_rt/ashlti3.zig"
+    "special/compiler_rt/ashrti3.zig"
     "special/compiler_rt/aulldiv.zig"
     "special/compiler_rt/aullrem.zig"
-    "special/compiler_rt/comparetf2.zig"
     "special/compiler_rt/comparedf2.zig"
     "special/compiler_rt/comparesf2.zig"
-    "special/compiler_rt/divsf3.zig"
+    "special/compiler_rt/comparetf2.zig"
     "special/compiler_rt/divdf3.zig"
+    "special/compiler_rt/divsf3.zig"
     "special/compiler_rt/divti3.zig"
     "special/compiler_rt/extendXfYf2.zig"
     "special/compiler_rt/fixdfdi.zig"
 @@ -680,26 +685,25 @@ set(ZIG_STD_FILES
     "special/compiler_rt/fixunstfti.zig"
     "special/compiler_rt/floatdidf.zig"
     "special/compiler_rt/floatsiXf.zig"
-    "special/compiler_rt/floatunsidf.zig"
     "special/compiler_rt/floattidf.zig"
     "special/compiler_rt/floattisf.zig"
     "special/compiler_rt/floattitf.zig"
     "special/compiler_rt/floatundidf.zig"
     "special/compiler_rt/floatunditf.zig"
+    "special/compiler_rt/floatunsidf.zig"
     "special/compiler_rt/floatunsitf.zig"
     "special/compiler_rt/floatuntidf.zig"
     "special/compiler_rt/floatuntisf.zig"
     "special/compiler_rt/floatuntitf.zig"
+    "special/compiler_rt/lshrti3.zig"
     "special/compiler_rt/modti3.zig"
     "special/compiler_rt/mulXf3.zig"
-    "special/compiler_rt/muloti4.zig"
     "special/compiler_rt/mulodi4.zig"
+    "special/compiler_rt/muloti4.zig"
     "special/compiler_rt/multi3.zig"
-    "special/compiler_rt/ashlti3.zig"
-    "special/compiler_rt/ashrti3.zig"
-    "special/compiler_rt/lshrti3.zig"
     "special/compiler_rt/negXf2.zig"
     "special/compiler_rt/popcountdi2.zig"
+    "special/compiler_rt/stack_probe.zig"
     "special/compiler_rt/truncXfYf2.zig"
     "special/compiler_rt/udivmod.zig"
     "special/compiler_rt/udivmoddi4.zig"
 @@ -716,6 +720,9 @@ set(ZIG_STD_FILES
     "statically_initialized_mutex.zig"
     "std.zig"
     "testing.zig"
+    "thread.zig"
+    "time.zig"
+    "time/epoch.zig"
     "unicode.zig"
     "valgrind.zig"
     "valgrind/callgrind.zig"
 @@ -6707,8 +6714,6 @@ target_link_libraries(zig0 compiler)
 if(WIN32)
     set(LIBUSERLAND "${CMAKE_BINARY_DIR}/userland.lib")
-elseif(APPLE)
-    set(LIBUSERLAND "${CMAKE_BINARY_DIR}/userland.o")
 else()
     set(LIBUSERLAND "${CMAKE_BINARY_DIR}/libuserland.a")
 endif()

build.zig+17-27

 @@ -2,28 +2,28 @@ const builtin = @import("builtin");
 const std = @import("std");
 const Builder = std.build.Builder;
 const tests = @import("test/tests.zig");
-const os = std.os;
 const BufMap = std.BufMap;
 const warn = std.debug.warn;
 const mem = std.mem;
 const ArrayList = std.ArrayList;
 const Buffer = std.Buffer;
 const io = std.io;
+const fs = std.fs;
 pub fn build(b: *Builder) !void {
     const mode = b.standardReleaseOptions();
     var docgen_exe = b.addExecutable("docgen", "doc/docgen.zig");
-    const rel_zig_exe = try os.path.relative(b.allocator, b.build_root, b.zig_exe);
+    const rel_zig_exe = try fs.path.relative(b.allocator, b.build_root, b.zig_exe);
-    const langref_out_path = os.path.join(
+    const langref_out_path = fs.path.join(
         b.allocator,
         [][]const u8{ b.cache_root, "langref.html" },
     ) catch unreachable;
     var docgen_cmd = docgen_exe.run();
     docgen_cmd.addArgs([][]const u8{
         rel_zig_exe,
-        "doc" ++ os.path.sep_str ++ "langref.html.in",
+        "doc" ++ fs.path.sep_str ++ "langref.html.in",
         langref_out_path,
     });
     docgen_cmd.step.dependOn(&docgen_exe.step);
 @@ -137,7 +137,7 @@ fn dependOnLib(b: *Builder, lib_exe_obj: var, dep: LibraryDep) void {
     for (dep.libdirs.toSliceConst()) |lib_dir| {
         lib_exe_obj.addLibPath(lib_dir);
     }
-    const lib_dir = os.path.join(
+    const lib_dir = fs.path.join(
         b.allocator,
         [][]const u8{ dep.prefix, "lib" },
     ) catch unreachable;
 @@ -146,7 +146,7 @@ fn dependOnLib(b: *Builder, lib_exe_obj: var, dep: LibraryDep) void {
             ([]const u8)("libncurses.a")
         else
             b.fmt("lib{}.a", lib);
-        const static_lib_name = os.path.join(
+        const static_lib_name = fs.path.join(
             b.allocator,
             [][]const u8{ lib_dir, static_bare_name },
         ) catch unreachable;
 @@ -166,10 +166,8 @@ fn dependOnLib(b: *Builder, lib_exe_obj: var, dep: LibraryDep) void {
 }
 fn fileExists(filename: []const u8) !bool {
-    os.File.access(filename) catch |err| switch (err) {
+    fs.File.access(filename) catch |err| switch (err) {
-        error.PermissionDenied,
+        error.FileNotFound => return false,
-        error.FileNotFound,
-        => return false,
         else => return err,
     };
     return true;
 @@ -177,7 +175,7 @@ fn fileExists(filename: []const u8) !bool {
 fn addCppLib(b: *Builder, lib_exe_obj: var, cmake_binary_dir: []const u8, lib_name: []const u8) void {
     const lib_prefix = if (lib_exe_obj.target.isWindows()) "" else "lib";
-    lib_exe_obj.addObjectFile(os.path.join(b.allocator, [][]const u8{
+    lib_exe_obj.addObjectFile(fs.path.join(b.allocator, [][]const u8{
         cmake_binary_dir,
         "zig_cpp",
         b.fmt("{}{}{}", lib_prefix, lib_name, lib_exe_obj.target.libFileExt()),
 @@ -223,7 +221,7 @@ fn findLLVM(b: *Builder, llvm_config_exe: []const u8) !LibraryDep {
             if (mem.startsWith(u8, lib_arg, "-l")) {
                 try result.system_libs.append(lib_arg[2..]);
             } else {
-                if (os.path.isAbsolute(lib_arg)) {
+                if (fs.path.isAbsolute(lib_arg)) {
                     try result.libs.append(lib_arg);
                 } else {
                     try result.system_libs.append(lib_arg);
 @@ -257,8 +255,8 @@ fn findLLVM(b: *Builder, llvm_config_exe: []const u8) !LibraryDep {
 pub fn installStdLib(b: *Builder, stdlib_files: []const u8) void {
     var it = mem.tokenize(stdlib_files, ";");
     while (it.next()) |stdlib_file| {
-        const src_path = os.path.join(b.allocator, [][]const u8{ "std", stdlib_file }) catch unreachable;
+        const src_path = fs.path.join(b.allocator, [][]const u8{ "std", stdlib_file }) catch unreachable;
-        const dest_path = os.path.join(
+        const dest_path = fs.path.join(
             b.allocator,
             [][]const u8{ "lib", "zig", "std", stdlib_file },
         ) catch unreachable;
 @@ -269,8 +267,8 @@ pub fn installStdLib(b: *Builder, stdlib_files: []const u8) void {
 pub fn installCHeaders(b: *Builder, c_header_files: []const u8) void {
     var it = mem.tokenize(c_header_files, ";");
     while (it.next()) |c_header_file| {
-        const src_path = os.path.join(b.allocator, [][]const u8{ "c_headers", c_header_file }) catch unreachable;
+        const src_path = fs.path.join(b.allocator, [][]const u8{ "c_headers", c_header_file }) catch unreachable;
-        const dest_path = os.path.join(
+        const dest_path = fs.path.join(
             b.allocator,
             [][]const u8{ "lib", "zig", "include", c_header_file },
         ) catch unreachable;
 @@ -315,7 +313,7 @@ fn configureStage2(b: *Builder, exe: var, ctx: Context) !void {
     }
     dependOnLib(b, exe, ctx.llvm);
-    if (exe.target.getOs() == builtin.Os.linux) {
+    if (exe.target.getOs() == .linux) {
         try addCxxKnownPath(b, ctx, exe, "libstdc++.a",
             \\Unable to determine path to libstdc++.a
             \\On Fedora, install libstdc++-static and try again.
 @@ -385,17 +383,9 @@ const Context = struct {
 };
 fn addLibUserlandStep(b: *Builder) void {
-    // Sadly macOS requires hacks to work around the buggy MACH-O linker code.
+    const artifact = b.addStaticLibrary("userland", "src-self-hosted/stage1.zig");
-    const artifact = if (builtin.os == .macosx)
-        b.addObject("userland", "src-self-hosted/stage1.zig")
-    else
-        b.addStaticLibrary("userland", "src-self-hosted/stage1.zig");
     artifact.disable_gen_h = true;
-    if (builtin.os == .macosx) {
+    artifact.bundle_compiler_rt = true;
-        artifact.disable_stack_probing = true;
-    } else {
-        artifact.bundle_compiler_rt = true;
-    }
     artifact.setTarget(builtin.arch, builtin.os, builtin.abi);
     artifact.linkSystemLibrary("c");
     const libuserland_step = b.step("libuserland", "Build the userland compiler library for use in stage1");

doc/docgen.zig+30-28

...	@@ -1,7 +1,9 @@	...	@@ -1,7 +1,9 @@
1	const builtin = @import("builtin");	1	const builtin = @import("builtin");
2	const std = @import("std");	2	const std = @import("std");
3	const io = std.io;	3	const io = std.io;
4	const os = std.os;	4	const fs = std.fs;
		5	const process = std.process;
		6	const ChildProcess = std.ChildProcess;
5	const warn = std.debug.warn;	7	const warn = std.debug.warn;
6	const mem = std.mem;	8	const mem = std.mem;
7	const testing = std.testing;	9	const testing = std.testing;
...	@@ -11,7 +13,7 @@ const max_doc_file_size = 10 * 1024 * 1024;	...	@@ -11,7 +13,7 @@ const max_doc_file_size = 10 * 1024 * 1024;
11	const exe_ext = std.build.Target(std.build.Target.Native).exeFileExt();	13	const exe_ext = std.build.Target(std.build.Target.Native).exeFileExt();
12	const obj_ext = std.build.Target(std.build.Target.Native).oFileExt();	14	const obj_ext = std.build.Target(std.build.Target.Native).oFileExt();
13	const tmp_dir_name = "docgen_tmp";	15	const tmp_dir_name = "docgen_tmp";
14	const test_out_path = tmp_dir_name ++ os.path.sep_str ++ "test" ++ exe_ext;	16	const test_out_path = tmp_dir_name ++ fs.path.sep_str ++ "test" ++ exe_ext;
15		17
16	pub fn main() !void {	18	pub fn main() !void {
17	var direct_allocator = std.heap.DirectAllocator.init();	19	var direct_allocator = std.heap.DirectAllocator.init();
...	@@ -22,7 +24,7 @@ pub fn main() !void {	...	@@ -22,7 +24,7 @@ pub fn main() !void {
22		24
23	const allocator = &arena.allocator;	25	const allocator = &arena.allocator;
24		26
25	var args_it = os.args();	27	var args_it = process.args();
26		28
27	if (!args_it.skip()) @panic("expected self arg");	29	if (!args_it.skip()) @panic("expected self arg");
28		30
...	@@ -35,10 +37,10 @@ pub fn main() !void {	...	@@ -35,10 +37,10 @@ pub fn main() !void {
35	const out_file_name = try (args_it.next(allocator) orelse @panic("expected output arg"));	37	const out_file_name = try (args_it.next(allocator) orelse @panic("expected output arg"));
36	defer allocator.free(out_file_name);	38	defer allocator.free(out_file_name);
37		39
38	var in_file = try os.File.openRead(in_file_name);	40	var in_file = try fs.File.openRead(in_file_name);
39	defer in_file.close();	41	defer in_file.close();
40		42
41	var out_file = try os.File.openWrite(out_file_name);	43	var out_file = try fs.File.openWrite(out_file_name);
42	defer out_file.close();	44	defer out_file.close();
43		45
44	var file_in_stream = in_file.inStream();	46	var file_in_stream = in_file.inStream();
...	@@ -46,13 +48,13 @@ pub fn main() !void {	...	@@ -46,13 +48,13 @@ pub fn main() !void {
46	const input_file_bytes = try file_in_stream.stream.readAllAlloc(allocator, max_doc_file_size);	48	const input_file_bytes = try file_in_stream.stream.readAllAlloc(allocator, max_doc_file_size);
47		49
48	var file_out_stream = out_file.outStream();	50	var file_out_stream = out_file.outStream();
49	var buffered_out_stream = io.BufferedOutStream(os.File.WriteError).init(&file_out_stream.stream);	51	var buffered_out_stream = io.BufferedOutStream(fs.File.WriteError).init(&file_out_stream.stream);
50		52
51	var tokenizer = Tokenizer.init(in_file_name, input_file_bytes);	53	var tokenizer = Tokenizer.init(in_file_name, input_file_bytes);
52	var toc = try genToc(allocator, &tokenizer);	54	var toc = try genToc(allocator, &tokenizer);
53		55
54	try os.makePath(allocator, tmp_dir_name);	56	try fs.makePath(allocator, tmp_dir_name);
55	defer os.deleteTree(allocator, tmp_dir_name) catch {};	57	defer fs.deleteTree(allocator, tmp_dir_name) catch {};
56		58
57	try genHtml(allocator, &tokenizer, &toc, &buffered_out_stream.stream, zig_exe);	59	try genHtml(allocator, &tokenizer, &toc, &buffered_out_stream.stream, zig_exe);
58	try buffered_out_stream.flush();	60	try buffered_out_stream.flush();
...	@@ -950,7 +952,7 @@ fn tokenizeAndPrint(docgen_tokenizer: *Tokenizer, out: var, source_token: Token)	...	@@ -950,7 +952,7 @@ fn tokenizeAndPrint(docgen_tokenizer: *Tokenizer, out: var, source_token: Token)
950	fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var, zig_exe: []const u8) !void {	952	fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var, zig_exe: []const u8) !void {
951	var code_progress_index: usize = 0;	953	var code_progress_index: usize = 0;
952		954
953	var env_map = try os.getEnvMap(allocator);	955	var env_map = try process.getEnvMap(allocator);
954	try env_map.set("ZIG_DEBUG_COLOR", "1");	956	try env_map.set("ZIG_DEBUG_COLOR", "1");
955		957
956	const builtin_code = try getBuiltinCode(allocator, &env_map, zig_exe);	958	const builtin_code = try getBuiltinCode(allocator, &env_map, zig_exe);
...	@@ -1012,7 +1014,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1012,7 +1014,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1012	try tokenizeAndPrint(tokenizer, out, code.source_token);	1014	try tokenizeAndPrint(tokenizer, out, code.source_token);
1013	try out.write("</pre>");	1015	try out.write("</pre>");
1014	const name_plus_ext = try std.fmt.allocPrint(allocator, "{}.zig", code.name);	1016	const name_plus_ext = try std.fmt.allocPrint(allocator, "{}.zig", code.name);
1015	const tmp_source_file_name = try os.path.join(	1017	const tmp_source_file_name = try fs.path.join(
1016	allocator,	1018	allocator,
1017	[][]const u8{ tmp_dir_name, name_plus_ext },	1019	[][]const u8{ tmp_dir_name, name_plus_ext },
1018	);	1020	);
...	@@ -1021,7 +1023,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1021,7 +1023,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1021	switch (code.id) {	1023	switch (code.id) {
1022	Code.Id.Exe => \|expected_outcome\| code_block: {	1024	Code.Id.Exe => \|expected_outcome\| code_block: {
1023	const name_plus_bin_ext = try std.fmt.allocPrint(allocator, "{}{}", code.name, exe_ext);	1025	const name_plus_bin_ext = try std.fmt.allocPrint(allocator, "{}{}", code.name, exe_ext);
1024	const tmp_bin_file_name = try os.path.join(	1026	const tmp_bin_file_name = try fs.path.join(
1025	allocator,	1027	allocator,
1026	[][]const u8{ tmp_dir_name, name_plus_bin_ext },	1028	[][]const u8{ tmp_dir_name, name_plus_bin_ext },
1027	);	1029	);
...	@@ -1056,7 +1058,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1056,7 +1058,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1056	}	1058	}
1057	for (code.link_objects) \|link_object\| {	1059	for (code.link_objects) \|link_object\| {
1058	const name_with_ext = try std.fmt.allocPrint(allocator, "{}{}", link_object, obj_ext);	1060	const name_with_ext = try std.fmt.allocPrint(allocator, "{}{}", link_object, obj_ext);
1059	const full_path_object = try os.path.join(	1061	const full_path_object = try fs.path.join(
1060	allocator,	1062	allocator,
1061	[][]const u8{ tmp_dir_name, name_with_ext },	1063	[][]const u8{ tmp_dir_name, name_with_ext },
1062	);	1064	);
...	@@ -1076,7 +1078,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1076,7 +1078,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1076	}	1078	}
1077	}	1079	}
1078	if (expected_outcome == .BuildFail) {	1080	if (expected_outcome == .BuildFail) {
1079	const result = try os.ChildProcess.exec(	1081	const result = try ChildProcess.exec(
1080	allocator,	1082	allocator,
1081	build_args.toSliceConst(),	1083	build_args.toSliceConst(),
1082	null,	1084	null,
...	@@ -1084,7 +1086,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1084,7 +1086,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1084	max_doc_file_size,	1086	max_doc_file_size,
1085	);	1087	);
1086	switch (result.term) {	1088	switch (result.term) {
1087	os.ChildProcess.Term.Exited => \|exit_code\| {	1089	.Exited => \|exit_code\| {
1088	if (exit_code == 0) {	1090	if (exit_code == 0) {
1089	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);	1091	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);
1090	for (build_args.toSliceConst()) \|arg\|	1092	for (build_args.toSliceConst()) \|arg\|
...	@@ -1113,7 +1115,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1113,7 +1115,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1113	if (code.target_str) \|triple\| {	1115	if (code.target_str) \|triple\| {
1114	if (mem.startsWith(u8, triple, "wasm32") or	1116	if (mem.startsWith(u8, triple, "wasm32") or
1115	mem.startsWith(u8, triple, "x86_64-linux") and	1117	mem.startsWith(u8, triple, "x86_64-linux") and
1116	(builtin.os != builtin.Os.linux or builtin.arch != builtin.Arch.x86_64))	1118	(builtin.os != .linux or builtin.arch != .x86_64))
1117	{	1119	{
1118	// skip execution	1120	// skip execution
1119	try out.print("</code></pre>\n");	1121	try out.print("</code></pre>\n");
...	@@ -1124,9 +1126,9 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1124,9 +1126,9 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1124	const run_args = [][]const u8{tmp_bin_file_name};	1126	const run_args = [][]const u8{tmp_bin_file_name};
1125		1127
1126	const result = if (expected_outcome == ExpectedOutcome.Fail) blk: {	1128	const result = if (expected_outcome == ExpectedOutcome.Fail) blk: {
1127	const result = try os.ChildProcess.exec(allocator, run_args, null, &env_map, max_doc_file_size);	1129	const result = try ChildProcess.exec(allocator, run_args, null, &env_map, max_doc_file_size);
1128	switch (result.term) {	1130	switch (result.term) {
1129	os.ChildProcess.Term.Exited => \|exit_code\| {	1131	.Exited => \|exit_code\| {
1130	if (exit_code == 0) {	1132	if (exit_code == 0) {
1131	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);	1133	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);
1132	for (run_args) \|arg\|	1134	for (run_args) \|arg\|
...	@@ -1216,9 +1218,9 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1216,9 +1218,9 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1216	try out.print(" --release-small");	1218	try out.print(" --release-small");
1217	},	1219	},
1218	}	1220	}
1219	const result = try os.ChildProcess.exec(allocator, test_args.toSliceConst(), null, &env_map, max_doc_file_size);	1221	const result = try ChildProcess.exec(allocator, test_args.toSliceConst(), null, &env_map, max_doc_file_size);
1220	switch (result.term) {	1222	switch (result.term) {
1221	os.ChildProcess.Term.Exited => \|exit_code\| {	1223	.Exited => \|exit_code\| {
1222	if (exit_code == 0) {	1224	if (exit_code == 0) {
1223	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);	1225	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);
1224	for (test_args.toSliceConst()) \|arg\|	1226	for (test_args.toSliceConst()) \|arg\|
...	@@ -1274,9 +1276,9 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1274,9 +1276,9 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1274	},	1276	},
1275	}	1277	}
1276		1278
1277	const result = try os.ChildProcess.exec(allocator, test_args.toSliceConst(), null, &env_map, max_doc_file_size);	1279	const result = try ChildProcess.exec(allocator, test_args.toSliceConst(), null, &env_map, max_doc_file_size);
1278	switch (result.term) {	1280	switch (result.term) {
1279	os.ChildProcess.Term.Exited => \|exit_code\| {	1281	.Exited => \|exit_code\| {
1280	if (exit_code == 0) {	1282	if (exit_code == 0) {
1281	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);	1283	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);
1282	for (test_args.toSliceConst()) \|arg\|	1284	for (test_args.toSliceConst()) \|arg\|
...	@@ -1310,7 +1312,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1310,7 +1312,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1310	},	1312	},
1311	Code.Id.Obj => \|maybe_error_match\| {	1313	Code.Id.Obj => \|maybe_error_match\| {
1312	const name_plus_obj_ext = try std.fmt.allocPrint(allocator, "{}{}", code.name, obj_ext);	1314	const name_plus_obj_ext = try std.fmt.allocPrint(allocator, "{}{}", code.name, obj_ext);
1313	const tmp_obj_file_name = try os.path.join(	1315	const tmp_obj_file_name = try fs.path.join(
1314	allocator,	1316	allocator,
1315	[][]const u8{ tmp_dir_name, name_plus_obj_ext },	1317	[][]const u8{ tmp_dir_name, name_plus_obj_ext },
1316	);	1318	);
...	@@ -1318,7 +1320,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1318,7 +1320,7 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1318	defer build_args.deinit();	1320	defer build_args.deinit();
1319		1321
1320	const name_plus_h_ext = try std.fmt.allocPrint(allocator, "{}.h", code.name);	1322	const name_plus_h_ext = try std.fmt.allocPrint(allocator, "{}.h", code.name);
1321	const output_h_file_name = try os.path.join(	1323	const output_h_file_name = try fs.path.join(
1322	allocator,	1324	allocator,
1323	[][]const u8{ tmp_dir_name, name_plus_h_ext },	1325	[][]const u8{ tmp_dir_name, name_plus_h_ext },
1324	);	1326	);
...	@@ -1367,9 +1369,9 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1367,9 +1369,9 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1367	}	1369	}
1368		1370
1369	if (maybe_error_match) \|error_match\| {	1371	if (maybe_error_match) \|error_match\| {
1370	const result = try os.ChildProcess.exec(allocator, build_args.toSliceConst(), null, &env_map, max_doc_file_size);	1372	const result = try ChildProcess.exec(allocator, build_args.toSliceConst(), null, &env_map, max_doc_file_size);
1371	switch (result.term) {	1373	switch (result.term) {
1372	os.ChildProcess.Term.Exited => \|exit_code\| {	1374	.Exited => \|exit_code\| {
1373	if (exit_code == 0) {	1375	if (exit_code == 0) {
1374	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);	1376	warn("{}\nThe following command incorrectly succeeded:\n", result.stderr);
1375	for (build_args.toSliceConst()) \|arg\|	1377	for (build_args.toSliceConst()) \|arg\|
...	@@ -1448,10 +1450,10 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var	...	@@ -1448,10 +1450,10 @@ fn genHtml(allocator: mem.Allocator, tokenizer: Tokenizer, toc: *Toc, out: var
1448	}	1450	}
1449	}	1451	}
1450		1452
1451	fn exec(allocator: mem.Allocator, env_map: std.BufMap, args: []const []const u8) !os.ChildProcess.ExecResult {	1453	fn exec(allocator: mem.Allocator, env_map: std.BufMap, args: []const []const u8) !ChildProcess.ExecResult {
1452	const result = try os.ChildProcess.exec(allocator, args, null, env_map, max_doc_file_size);	1454	const result = try ChildProcess.exec(allocator, args, null, env_map, max_doc_file_size);
1453	switch (result.term) {	1455	switch (result.term) {
1454	os.ChildProcess.Term.Exited => \|exit_code\| {	1456	.Exited => \|exit_code\| {
1455	if (exit_code != 0) {	1457	if (exit_code != 0) {
1456	warn("{}\nThe following command exited with code {}:\n", result.stderr, exit_code);	1458	warn("{}\nThe following command exited with code {}:\n", result.stderr, exit_code);
1457	for (args) \|arg\|	1459	for (args) \|arg\|

doc/langref.html.in+38-5

...	@@ -796,8 +796,8 @@ const assert = std.debug.assert;	...	@@ -796,8 +796,8 @@ const assert = std.debug.assert;
796	threadlocal var x: i32 = 1234;	796	threadlocal var x: i32 = 1234;
797		797
798	test "thread local storage" {	798	test "thread local storage" {
799	const thread1 = try std.os.spawnThread({}, testTls);	799	const thread1 = try std.Thread.spawn({}, testTls);
800	const thread2 = try std.os.spawnThread({}, testTls);	800	const thread2 = try std.Thread.spawn({}, testTls);
801	testTls({});	801	testTls({});
802	thread1.wait();	802	thread1.wait();
803	thread2.wait();	803	thread2.wait();
...	@@ -4531,7 +4531,7 @@ const mem = std.mem;	...	@@ -4531,7 +4531,7 @@ const mem = std.mem;
4531	test "cast [1][]const u8 to []const ?[]const u8" {	4531	test "cast [1][]const u8 to []const ?[]const u8" {
4532	const window_name = [1][*]const u8{c"window name"};	4532	const window_name = [1][*]const u8{c"window name"};
4533	const x: []const ?[]const u8 = &window_name;	4533	const x: []const ?[]const u8 = &window_name;
4534	assert(mem.eql(u8, std.cstr.toSliceConst(x[0].?), "window name"));	4534	assert(mem.eql(u8, std.mem.toSliceConst(u8, x[0].?), "window name"));
4535	}	4535	}
4536	{#code_end#}	4536	{#code_end#}
4537	{#header_close#}	4537	{#header_close#}
...	@@ -6734,6 +6734,38 @@ export fn @"A function name that is a complete sentence."() void {}	...	@@ -6734,6 +6734,38 @@ export fn @"A function name that is a complete sentence."() void {}
6734	</p>	6734	</p>
6735	{#header_close#}	6735	{#header_close#}
6736		6736
		6737	{#header_open\|@hasDecl#}
		6738	<pre>{#syntax#}@hasDecl(comptime container: type, comptime name: []const u8) bool{#endsyntax#}</pre>
		6739	<p>
		6740	Returns whether or not a {#link\|struct#}, {#link\|enum#}, or {#link\|union#} has a declaration
		6741	matching {#syntax#}name{#endsyntax#}.
		6742	</p>
		6743	{#code_begin\|test#}
		6744	const std = @import("std");
		6745	const assert = std.debug.assert;
		6746
		6747	const Foo = struct {
		6748	nope: i32,
		6749
		6750	pub var blah = "xxx";
		6751	const hi = 1;
		6752	};
		6753
		6754	test "@hasDecl" {
		6755	assert(@hasDecl(Foo, "blah"));
		6756
		6757	// Even though `hi` is private, @hasDecl returns true because this test is
		6758	// in the same file scope as Foo. It would return false if Foo was declared
		6759	// in a different file.
		6760	assert(@hasDecl(Foo, "hi"));
		6761
		6762	// @hasDecl is for declarations; not fields.
		6763	assert(!@hasDecl(Foo, "nope"));
		6764	assert(!@hasDecl(Foo, "nope1234"));
		6765	}
		6766	{#code_end#}
		6767	{#header_close#}
		6768
6737	{#header_open\|@import#}	6769	{#header_open\|@import#}
6738	<pre>{#syntax#}@import(comptime path: []u8) type{#endsyntax#}</pre>	6770	<pre>{#syntax#}@import(comptime path: []u8) type{#endsyntax#}</pre>
6739	<p>	6771	<p>
...	@@ -8980,8 +9012,8 @@ export fn add(a: i32, b: i32) void {	...	@@ -8980,8 +9012,8 @@ export fn add(a: i32, b: i32) void {
8980	const std = @import("std");	9012	const std = @import("std");
8981		9013
8982	pub fn main() !void {	9014	pub fn main() !void {
8983	const args = try std.os.argsAlloc(std.heap.wasm_allocator);	9015	const args = try std.process.argsAlloc(std.heap.wasm_allocator);
8984	defer std.os.argsFree(std.heap.wasm_allocator, args);	9016	defer std.process.argsFree(std.heap.wasm_allocator, args);
8985		9017
8986	for (args) \|arg, i\| {	9018	for (args) \|arg, i\| {
8987	std.debug.warn("{}: {}\n", i, arg);	9019	std.debug.warn("{}: {}\n", i, arg);
...	@@ -9891,6 +9923,7 @@ keyword <- KEYWORD_align / KEYWORD_and / KEYWORD_allowzero / KEYWORD_anyerror	...	@@ -9891,6 +9923,7 @@ keyword <- KEYWORD_align / KEYWORD_and / KEYWORD_allowzero / KEYWORD_anyerror
9891	<li>Avoid local maximums.</li>	9923	<li>Avoid local maximums.</li>
9892	<li>Reduce the amount one must remember.</li>	9924	<li>Reduce the amount one must remember.</li>
9893	<li>Minimize energy spent on coding style.</li>	9925	<li>Minimize energy spent on coding style.</li>
		9926	<li>Resource deallocation must succeed.</li>
9894	<li>Together we serve end users.</li>	9927	<li>Together we serve end users.</li>
9895	</ul>	9928	</ul>
9896	{#header_close#}	9929	{#header_close#}

example/cat/main.zig+5-4

 @@ -1,12 +1,13 @@
 const std = @import("std");
 const io = std.io;
+const process = std.process;
+const File = std.fs.File;
 const mem = std.mem;
-const os = std.os;
 const warn = std.debug.warn;
 const allocator = std.debug.global_allocator;
 pub fn main() !void {
-    var args_it = os.args();
+    var args_it = process.args();
     const exe = try unwrapArg(args_it.next(allocator).?);
     var catted_anything = false;
     var stdout_file = try io.getStdOut();
 @@ -20,7 +21,7 @@ pub fn main() !void {
         } else if (arg[0] == '-') {
             return usage(exe);
         } else {
-            var file = os.File.openRead(arg) catch |err| {
+            var file = File.openRead(arg) catch |err| {
                 warn("Unable to open file: {}\n", @errorName(err));
                 return err;
             };
 @@ -41,7 +42,7 @@ fn usage(exe: []const u8) !void {
     return error.Invalid;
 }
-fn cat_file(stdout: *os.File, file: *os.File) !void {
+fn cat_file(stdout: *File, file: *File) !void {
     var buf: [1024 * 4]u8 = undefined;
     while (true) {

example/guess_number/main.zig+1-2

...	@@ -2,7 +2,6 @@ const builtin = @import("builtin");	...	@@ -2,7 +2,6 @@ const builtin = @import("builtin");
2	const std = @import("std");	2	const std = @import("std");
3	const io = std.io;	3	const io = std.io;
4	const fmt = std.fmt;	4	const fmt = std.fmt;
5	const os = std.os;
6		5
7	pub fn main() !void {	6	pub fn main() !void {
8	var stdout_file = try io.getStdOut();	7	var stdout_file = try io.getStdOut();
...	@@ -11,7 +10,7 @@ pub fn main() !void {	...	@@ -11,7 +10,7 @@ pub fn main() !void {
11	try stdout.print("Welcome to the Guess Number Game in Zig.\n");	10	try stdout.print("Welcome to the Guess Number Game in Zig.\n");
12		11
13	var seed_bytes: [@sizeOf(u64)]u8 = undefined;	12	var seed_bytes: [@sizeOf(u64)]u8 = undefined;
14	os.getRandomBytes(seed_bytes[0..]) catch \|err\| {	13	std.crypto.randomBytes(seed_bytes[0..]) catch \|err\| {
15	std.debug.warn("unable to seed random number generator: {}", err);	14	std.debug.warn("unable to seed random number generator: {}", err);
16	return err;	15	return err;
17	};	16	};

example/hello_world/hello_libc.zig-1

...	@@ -9,6 +9,5 @@ const msg = c"Hello, world!\n";	...	@@ -9,6 +9,5 @@ const msg = c"Hello, world!\n";
9		9
10	export fn main(argc: c_int, argv: **u8) c_int {	10	export fn main(argc: c_int, argv: **u8) c_int {
11	if (c.printf(msg) != @intCast(c_int, c.strlen(msg))) return -1;	11	if (c.printf(msg) != @intCast(c_int, c.strlen(msg))) return -1;
12
13	return 0;	12	return 0;
14	}	13	}

src-self-hosted/compilation.zig+12-12

src-self-hosted/errmsg.zig+5-4

...	@@ -1,6 +1,7 @@	...	@@ -1,6 +1,7 @@
1	const std = @import("std");	1	const std = @import("std");
2	const mem = std.mem;	2	const mem = std.mem;
3	const os = std.os;	3	const fs = std.fs;
		4	const process = std.process;
4	const Token = std.zig.Token;	5	const Token = std.zig.Token;
5	const ast = std.zig.ast;	6	const ast = std.zig.ast;
6	const TokenIndex = std.zig.ast.TokenIndex;	7	const TokenIndex = std.zig.ast.TokenIndex;
...	@@ -239,10 +240,10 @@ pub const Msg = struct {	...	@@ -239,10 +240,10 @@ pub const Msg = struct {
239	const allocator = msg.getAllocator();	240	const allocator = msg.getAllocator();
240	const tree = msg.getTree();	241	const tree = msg.getTree();
241		242
242	const cwd = try os.getCwdAlloc(allocator);	243	const cwd = try process.getCwdAlloc(allocator);
243	defer allocator.free(cwd);	244	defer allocator.free(cwd);
244		245
245	const relpath = try os.path.relative(allocator, cwd, msg.realpath);	246	const relpath = try fs.path.relative(allocator, cwd, msg.realpath);
246	defer allocator.free(relpath);	247	defer allocator.free(relpath);
247		248
248	const path = if (relpath.len < msg.realpath.len) relpath else msg.realpath;	249	const path = if (relpath.len < msg.realpath.len) relpath else msg.realpath;
...	@@ -276,7 +277,7 @@ pub const Msg = struct {	...	@@ -276,7 +277,7 @@ pub const Msg = struct {
276	try stream.write("\n");	277	try stream.write("\n");
277	}	278	}
278		279
279	pub fn printToFile(msg: *const Msg, file: os.File, color: Color) !void {	280	pub fn printToFile(msg: *const Msg, file: fs.File, color: Color) !void {
280	const color_on = switch (color) {	281	const color_on = switch (color) {
281	Color.Auto => file.isTty(),	282	Color.Auto => file.isTty(),
282	Color.On => true,	283	Color.On => true,

src-self-hosted/introspect.zig+6-6

...	@@ -2,19 +2,19 @@	...	@@ -2,19 +2,19 @@
2		2
3	const std = @import("std");	3	const std = @import("std");
4	const mem = std.mem;	4	const mem = std.mem;
5	const os = std.os;	5	const fs = std.fs;
6		6
7	const warn = std.debug.warn;	7	const warn = std.debug.warn;
8		8
9	/// Caller must free result	9	/// Caller must free result
10	pub fn testZigInstallPrefix(allocator: *mem.Allocator, test_path: []const u8) ![]u8 {	10	pub fn testZigInstallPrefix(allocator: *mem.Allocator, test_path: []const u8) ![]u8 {
11	const test_zig_dir = try os.path.join(allocator, [][]const u8{ test_path, "lib", "zig" });	11	const test_zig_dir = try fs.path.join(allocator, [][]const u8{ test_path, "lib", "zig" });
12	errdefer allocator.free(test_zig_dir);	12	errdefer allocator.free(test_zig_dir);
13		13
14	const test_index_file = try os.path.join(allocator, [][]const u8{ test_zig_dir, "std", "std.zig" });	14	const test_index_file = try fs.path.join(allocator, [][]const u8{ test_zig_dir, "std", "std.zig" });
15	defer allocator.free(test_index_file);	15	defer allocator.free(test_index_file);
16		16
17	var file = try os.File.openRead(test_index_file);	17	var file = try fs.File.openRead(test_index_file);
18	file.close();	18	file.close();
19		19
20	return test_zig_dir;	20	return test_zig_dir;
...	@@ -22,12 +22,12 @@ pub fn testZigInstallPrefix(allocator: *mem.Allocator, test_path: []const u8) ![	...	@@ -22,12 +22,12 @@ pub fn testZigInstallPrefix(allocator: *mem.Allocator, test_path: []const u8) ![
22		22
23	/// Caller must free result	23	/// Caller must free result
24	pub fn findZigLibDir(allocator: *mem.Allocator) ![]u8 {	24	pub fn findZigLibDir(allocator: *mem.Allocator) ![]u8 {
25	const self_exe_path = try os.selfExeDirPathAlloc(allocator);	25	const self_exe_path = try fs.selfExeDirPathAlloc(allocator);
26	defer allocator.free(self_exe_path);	26	defer allocator.free(self_exe_path);
27		27
28	var cur_path: []const u8 = self_exe_path;	28	var cur_path: []const u8 = self_exe_path;
29	while (true) {	29	while (true) {
30	const test_dir = os.path.dirname(cur_path) orelse ".";	30	const test_dir = fs.path.dirname(cur_path) orelse ".";
31		31
32	if (mem.eql(u8, test_dir, cur_path)) {	32	if (mem.eql(u8, test_dir, cur_path)) {
33	break;	33	break;

src-self-hosted/libc_installation.zig+19-18

src-self-hosted/link.zig+3-3

src-self-hosted/main.zig+51-48

 @@ -4,7 +4,9 @@ const builtin = @import("builtin");
 const event = std.event;
 const os = std.os;
 const io = std.io;
+const fs = std.fs;
 const mem = std.mem;
+const process = std.process;
 const Allocator = mem.Allocator;
 const ArrayList = std.ArrayList;
 const Buffer = std.Buffer;
 @@ -20,9 +22,9 @@ const Target = @import("target.zig").Target;
 const errmsg = @import("errmsg.zig");
 const LibCInstallation = @import("libc_installation.zig").LibCInstallation;
-var stderr_file: os.File = undefined;
+var stderr_file: fs.File = undefined;
-var stderr: *io.OutStream(os.File.WriteError) = undefined;
+var stderr: *io.OutStream(fs.File.WriteError) = undefined;
-var stdout: *io.OutStream(os.File.WriteError) = undefined;
+var stdout: *io.OutStream(fs.File.WriteError) = undefined;
 pub const max_src_size = 2 * 1024 * 1024 * 1024; // 2 GiB
 @@ -62,14 +64,14 @@ pub fn main() !void {
     var stderr_out_stream = stderr_file.outStream();
     stderr = &stderr_out_stream.stream;
-    const args = try os.argsAlloc(allocator);
+    const args = try process.argsAlloc(allocator);
     // TODO I'm getting  unreachable code here, which shouldn't happen
-    //defer os.argsFree(allocator, args);
+    //defer process.argsFree(allocator, args);
     if (args.len <= 1) {
         try stderr.write("expected command argument\n\n");
         try stderr.write(usage);
-        os.exit(1);
+        process.exit(1);
     }
     const commands = []Command{
 @@ -125,7 +127,7 @@ pub fn main() !void {
     try stderr.print("unknown command: {}\n\n", args[1]);
     try stderr.write(usage);
-    os.exit(1);
+    process.exit(1);
 }
 const usage_build_generic =
 @@ -256,7 +258,7 @@ fn buildOutputType(allocator: *Allocator, args: []const []const u8, out_type: Co
     if (flags.present("help")) {
         try stdout.write(usage_build_generic);
-        os.exit(0);
+        process.exit(0);
     }
     const build_mode = blk: {
 @@ -324,14 +326,14 @@ fn buildOutputType(allocator: *Allocator, args: []const []const u8, out_type: Co
                 cur_pkg = parent;
             } else {
                 try stderr.print("encountered --pkg-end with no matching --pkg-begin\n");
-                os.exit(1);
+                process.exit(1);
             }
         }
     }
     if (cur_pkg.parent != null) {
         try stderr.print("unmatched --pkg-begin\n");
-        os.exit(1);
+        process.exit(1);
     }
     const provided_name = flags.single("name");
 @@ -340,18 +342,18 @@ fn buildOutputType(allocator: *Allocator, args: []const []const u8, out_type: Co
         1 => flags.positionals.at(0),
         else => {
             try stderr.print("unexpected extra parameter: {}\n", flags.positionals.at(1));
-            os.exit(1);
+            process.exit(1);
         },
     };
     const root_name = if (provided_name) |n| n else blk: {
         if (root_source_file) |file| {
-            const basename = os.path.basename(file);
+            const basename = fs.path.basename(file);
             var it = mem.separate(basename, ".");
             break :blk it.next() orelse basename;
         } else {
             try stderr.write("--name [name] not provided and unable to infer\n");
-            os.exit(1);
+            process.exit(1);
         }
     };
 @@ -361,12 +363,12 @@ fn buildOutputType(allocator: *Allocator, args: []const []const u8, out_type: Co
     const link_objects = flags.many("object");
     if (root_source_file == null and link_objects.len == 0 and assembly_files.len == 0) {
         try stderr.write("Expected source file argument or at least one --object or --assembly argument\n");
-        os.exit(1);
+        process.exit(1);
     }
     if (out_type == Compilation.Kind.Obj and link_objects.len != 0) {
         try stderr.write("When building an object file, --object arguments are invalid\n");
-        os.exit(1);
+        process.exit(1);
     }
     var clang_argv_buf = ArrayList([]const u8).init(allocator);
 @@ -379,7 +381,7 @@ fn buildOutputType(allocator: *Allocator, args: []const []const u8, out_type: Co
     }
     try ZigCompiler.setLlvmArgv(allocator, mllvm_flags);
-    const zig_lib_dir = introspect.resolveZigLibDir(allocator) catch os.exit(1);
+    const zig_lib_dir = introspect.resolveZigLibDir(allocator) catch process.exit(1);
     defer allocator.free(zig_lib_dir);
     var override_libc: LibCInstallation = undefined;
 @@ -448,7 +450,7 @@ fn buildOutputType(allocator: *Allocator, args: []const []const u8, out_type: Co
     if (flags.single("mmacosx-version-min") != null and flags.single("mios-version-min") != null) {
         try stderr.write("-mmacosx-version-min and -mios-version-min options not allowed together\n");
-        os.exit(1);
+        process.exit(1);
     }
     if (flags.single("mmacosx-version-min")) |ver| {
 @@ -478,16 +480,16 @@ async fn processBuildEvents(comp: *Compilation, color: errmsg.Color) void {
         switch (build_event) {
             Compilation.Event.Ok => {
-                stderr.print("Build {} succeeded\n", count) catch os.exit(1);
+                stderr.print("Build {} succeeded\n", count) catch process.exit(1);
             },
             Compilation.Event.Error => |err| {
-                stderr.print("Build {} failed: {}\n", count, @errorName(err)) catch os.exit(1);
+                stderr.print("Build {} failed: {}\n", count, @errorName(err)) catch process.exit(1);
             },
             Compilation.Event.Fail => |msgs| {
-                stderr.print("Build {} compile errors:\n", count) catch os.exit(1);
+                stderr.print("Build {} compile errors:\n", count) catch process.exit(1);
                 for (msgs) |msg| {
                     defer msg.destroy();
-                    msg.printToFile(stderr_file, color) catch os.exit(1);
+                    msg.printToFile(stderr_file, color) catch process.exit(1);
                 }
             },
         }
 @@ -550,8 +552,8 @@ fn parseLibcPaths(allocator: *Allocator, libc: *LibCInstallation, libc_paths_fil
                 "Try running `zig libc` to see an example for the native target.\n",
             libc_paths_file,
             @errorName(err),
-        ) catch os.exit(1);
+        ) catch process.exit(1);
-        os.exit(1);
+        process.exit(1);
     };
 }
 @@ -565,7 +567,7 @@ fn cmdLibC(allocator: *Allocator, args: []const []const u8) !void {
         },
         else => {
             try stderr.print("unexpected extra parameter: {}\n", args[1]);
-            os.exit(1);
+            process.exit(1);
         },
     }
 @@ -584,10 +586,10 @@ fn cmdLibC(allocator: *Allocator, args: []const []const u8) !void {
 async fn findLibCAsync(zig_compiler: *ZigCompiler) void {
     const libc = (await (async zig_compiler.getNativeLibC() catch unreachable)) catch |err| {
-        stderr.print("unable to find libc: {}\n", @errorName(err)) catch os.exit(1);
+        stderr.print("unable to find libc: {}\n", @errorName(err)) catch process.exit(1);
-        os.exit(1);
+        process.exit(1);
     };
-    libc.render(stdout) catch os.exit(1);
+    libc.render(stdout) catch process.exit(1);
 }
 fn cmdFmt(allocator: *Allocator, args: []const []const u8) !void {
 @@ -596,7 +598,7 @@ fn cmdFmt(allocator: *Allocator, args: []const []const u8) !void {
     if (flags.present("help")) {
         try stdout.write(usage_fmt);
-        os.exit(0);
+        process.exit(0);
     }
     const color = blk: {
 @@ -616,7 +618,7 @@ fn cmdFmt(allocator: *Allocator, args: []const []const u8) !void {
     if (flags.present("stdin")) {
         if (flags.positionals.len != 0) {
             try stderr.write("cannot use --stdin with positional arguments\n");
-            os.exit(1);
+            process.exit(1);
         }
         var stdin_file = try io.getStdIn();
 @@ -627,7 +629,7 @@ fn cmdFmt(allocator: *Allocator, args: []const []const u8) !void {
         const tree = std.zig.parse(allocator, source_code) catch |err| {
             try stderr.print("error parsing stdin: {}\n", err);
-            os.exit(1);
+            process.exit(1);
         };
         defer tree.deinit();
 @@ -639,12 +641,12 @@ fn cmdFmt(allocator: *Allocator, args: []const []const u8) !void {
             try msg.printToFile(stderr_file, color);
         }
         if (tree.errors.len != 0) {
-            os.exit(1);
+            process.exit(1);
         }
         if (flags.present("check")) {
             const anything_changed = try std.zig.render(allocator, io.null_out_stream, tree);
             const code = if (anything_changed) u8(1) else u8(0);
-            os.exit(code);
+            process.exit(code);
         }
         _ = try std.zig.render(allocator, stdout, tree);
 @@ -653,7 +655,7 @@ fn cmdFmt(allocator: *Allocator, args: []const []const u8) !void {
     if (flags.positionals.len == 0) {
         try stderr.write("expected at least one source file argument\n");
-        os.exit(1);
+        process.exit(1);
     }
     var loop: event.Loop = undefined;
 @@ -700,7 +702,8 @@ const FmtError = error{
     ReadOnlyFileSystem,
     LinkQuotaExceeded,
     FileBusy,
-} || os.File.OpenError;
+    CurrentWorkingDirectoryUnlinked,
+} || fs.File.OpenError;
 async fn asyncFmtMain(
     loop: *event.Loop,
 @@ -725,7 +728,7 @@ async fn asyncFmtMain(
     }
     try await (async group.wait() catch unreachable);
     if (fmt.any_error) {
-        os.exit(1);
+        process.exit(1);
     }
 }
 @@ -747,13 +750,13 @@ async fn fmtPath(fmt: *Fmt, file_path_ref: []const u8, check_mode: bool) FmtErro
     )) catch |err| switch (err) {
         error.IsDir, error.AccessDenied => {
             // TODO make event based (and dir.next())
-            var dir = try std.os.Dir.open(fmt.loop.allocator, file_path);
+            var dir = try fs.Dir.open(fmt.loop.allocator, file_path);
             defer dir.close();
             var group = event.Group(FmtError!void).init(fmt.loop);
             while (try dir.next()) |entry| {
-                if (entry.kind == std.os.Dir.Entry.Kind.Directory or mem.endsWith(u8, entry.name, ".zig")) {
+                if (entry.kind == fs.Dir.Entry.Kind.Directory or mem.endsWith(u8, entry.name, ".zig")) {
-                    const full_path = try os.path.join(fmt.loop.allocator, [][]const u8{ file_path, entry.name });
+                    const full_path = try fs.path.join(fmt.loop.allocator, [][]const u8{ file_path, entry.name });
                     try group.call(fmtPath, fmt, full_path, check_mode);
                 }
             }
 @@ -849,7 +852,7 @@ fn cmdTargets(allocator: *Allocator, args: []const []const u8) !void {
 }
 fn cmdVersion(allocator: *Allocator, args: []const []const u8) !void {
-    try stdout.print("{}\n", std.cstr.toSliceConst(c.ZIG_VERSION_STRING));
+    try stdout.print("{}\n", std.mem.toSliceConst(u8, c.ZIG_VERSION_STRING));
 }
 const args_test_spec = []Flag{Flag.Bool("--help")};
 @@ -891,7 +894,7 @@ const usage_internal =
 fn cmdInternal(allocator: *Allocator, args: []const []const u8) !void {
     if (args.len == 0) {
         try stderr.write(usage_internal);
-        os.exit(1);
+        process.exit(1);
     }
     const sub_commands = []Command{Command{
 @@ -922,14 +925,14 @@ fn cmdInternalBuildInfo(allocator: *Allocator, args: []const []const u8) !void {
         \\ZIG_DIA_GUIDS_LIB    {}
         \\
     ,
-        std.cstr.toSliceConst(c.ZIG_CMAKE_BINARY_DIR),
+        std.mem.toSliceConst(u8, c.ZIG_CMAKE_BINARY_DIR),
-        std.cstr.toSliceConst(c.ZIG_CXX_COMPILER),
+        std.mem.toSliceConst(u8, c.ZIG_CXX_COMPILER),
-        std.cstr.toSliceConst(c.ZIG_LLVM_CONFIG_EXE),
+        std.mem.toSliceConst(u8, c.ZIG_LLVM_CONFIG_EXE),
-        std.cstr.toSliceConst(c.ZIG_LLD_INCLUDE_PATH),
+        std.mem.toSliceConst(u8, c.ZIG_LLD_INCLUDE_PATH),
-        std.cstr.toSliceConst(c.ZIG_LLD_LIBRARIES),
+        std.mem.toSliceConst(u8, c.ZIG_LLD_LIBRARIES),
-        std.cstr.toSliceConst(c.ZIG_STD_FILES),
+        std.mem.toSliceConst(u8, c.ZIG_STD_FILES),
-        std.cstr.toSliceConst(c.ZIG_C_HEADER_FILES),
+        std.mem.toSliceConst(u8, c.ZIG_C_HEADER_FILES),
-        std.cstr.toSliceConst(c.ZIG_DIA_GUIDS_LIB),
+        std.mem.toSliceConst(u8, c.ZIG_DIA_GUIDS_LIB),
     );
 }

src-self-hosted/stage1.zig+29-30

 @@ -1,8 +1,24 @@
 // This is Zig code that is used by both stage1 and stage2.
 // The prototypes in src/userland.h must match these definitions.
-const std = @import("std");
 const builtin = @import("builtin");
+const std = @import("std");
+const io = std.io;
+const mem = std.mem;
+const fs = std.fs;
+const process = std.process;
+const Allocator = mem.Allocator;
+const ArrayList = std.ArrayList;
+const Buffer = std.Buffer;
+const arg = @import("arg.zig");
+const self_hosted_main = @import("main.zig");
+const Args = arg.Args;
+const Flag = arg.Flag;
+const errmsg = @import("errmsg.zig");
+var stderr_file: fs.File = undefined;
+var stderr: *io.OutStream(fs.File.WriteError) = undefined;
+var stdout: *io.OutStream(fs.File.WriteError) = undefined;
 // ABI warning
 export fn stage2_zen(ptr: *[*]const u8, len: *usize) void {
 @@ -157,7 +173,7 @@ fn fmtMain(argc: c_int, argv: [*]const [*]const u8) !void {
     if (flags.present("help")) {
         try stdout.write(self_hosted_main.usage_fmt);
-        os.exit(0);
+        process.exit(0);
     }
     const color = blk: {
 @@ -177,7 +193,7 @@ fn fmtMain(argc: c_int, argv: [*]const [*]const u8) !void {
     if (flags.present("stdin")) {
         if (flags.positionals.len != 0) {
             try stderr.write("cannot use --stdin with positional arguments\n");
-            os.exit(1);
+            process.exit(1);
         }
         var stdin_file = try io.getStdIn();
 @@ -188,7 +204,7 @@ fn fmtMain(argc: c_int, argv: [*]const [*]const u8) !void {
         const tree = std.zig.parse(allocator, source_code) catch |err| {
             try stderr.print("error parsing stdin: {}\n", err);
-            os.exit(1);
+            process.exit(1);
         };
         defer tree.deinit();
 @@ -197,12 +213,12 @@ fn fmtMain(argc: c_int, argv: [*]const [*]const u8) !void {
             try printErrMsgToFile(allocator, parse_error, tree, "<stdin>", stderr_file, color);
         }
         if (tree.errors.len != 0) {
-            os.exit(1);
+            process.exit(1);
         }
         if (flags.present("check")) {
             const anything_changed = try std.zig.render(allocator, io.null_out_stream, tree);
             const code = if (anything_changed) u8(1) else u8(0);
-            os.exit(code);
+            process.exit(code);
         }
         _ = try std.zig.render(allocator, stdout, tree);
 @@ -211,7 +227,7 @@ fn fmtMain(argc: c_int, argv: [*]const [*]const u8) !void {
     if (flags.positionals.len == 0) {
         try stderr.write("expected at least one source file argument\n");
-        os.exit(1);
+        process.exit(1);
     }
     var fmt = Fmt{
 @@ -227,7 +243,7 @@ fn fmtMain(argc: c_int, argv: [*]const [*]const u8) !void {
         try fmtPath(&fmt, file_path, check_mode);
     }
     if (fmt.any_error) {
-        os.exit(1);
+        process.exit(1);
     }
 }
 @@ -250,7 +266,7 @@ const FmtError = error{
     ReadOnlyFileSystem,
     LinkQuotaExceeded,
     FileBusy,
-} || os.File.OpenError;
+} || fs.File.OpenError;
 fn fmtPath(fmt: *Fmt, file_path_ref: []const u8, check_mode: bool) FmtError!void {
     const file_path = try std.mem.dupe(fmt.allocator, u8, file_path_ref);
 @@ -261,12 +277,12 @@ fn fmtPath(fmt: *Fmt, file_path_ref: []const u8, check_mode: bool) FmtError!void
     const source_code = io.readFileAlloc(fmt.allocator, file_path) catch |err| switch (err) {
         error.IsDir, error.AccessDenied => {
             // TODO make event based (and dir.next())
-            var dir = try std.os.Dir.open(fmt.allocator, file_path);
+            var dir = try fs.Dir.open(fmt.allocator, file_path);
             defer dir.close();
             while (try dir.next()) |entry| {
-                if (entry.kind == std.os.Dir.Entry.Kind.Directory or mem.endsWith(u8, entry.name, ".zig")) {
+                if (entry.kind == fs.Dir.Entry.Kind.Directory or mem.endsWith(u8, entry.name, ".zig")) {
-                    const full_path = try os.path.join(fmt.allocator, [][]const u8{ file_path, entry.name });
+                    const full_path = try fs.path.join(fmt.allocator, [][]const u8{ file_path, entry.name });
                     try fmtPath(fmt, full_path, check_mode);
                 }
             }
 @@ -329,7 +345,7 @@ fn printErrMsgToFile(
     parse_error: *const ast.Error,
     tree: *ast.Tree,
     path: []const u8,
-    file: os.File,
+    file: fs.File,
     color: errmsg.Color,
 ) !void {
     const color_on = switch (color) {
 @@ -377,20 +393,3 @@ fn printErrMsgToFile(
     try stream.writeByteNTimes('~', last_token.end - first_token.start);
     try stream.write("\n");
 }
-const os = std.os;
-const io = std.io;
-const mem = std.mem;
-const Allocator = mem.Allocator;
-const ArrayList = std.ArrayList;
-const Buffer = std.Buffer;
-const arg = @import("arg.zig");
-const self_hosted_main = @import("main.zig");
-const Args = arg.Args;
-const Flag = arg.Flag;
-const errmsg = @import("errmsg.zig");
-var stderr_file: os.File = undefined;
-var stderr: *io.OutStream(os.File.WriteError) = undefined;
-var stdout: *io.OutStream(os.File.WriteError) = undefined;

src-self-hosted/test.zig+11-11

...	@@ -55,12 +55,12 @@ pub const TestContext = struct {	...	@@ -55,12 +55,12 @@ pub const TestContext = struct {
55	self.zig_lib_dir = try introspect.resolveZigLibDir(allocator);	55	self.zig_lib_dir = try introspect.resolveZigLibDir(allocator);
56	errdefer allocator.free(self.zig_lib_dir);	56	errdefer allocator.free(self.zig_lib_dir);
57		57
58	try std.os.makePath(allocator, tmp_dir_name);	58	try std.fs.makePath(allocator, tmp_dir_name);
59	errdefer std.os.deleteTree(allocator, tmp_dir_name) catch {};	59	errdefer std.fs.deleteTree(allocator, tmp_dir_name) catch {};
60	}	60	}
61		61
62	fn deinit(self: *TestContext) void {	62	fn deinit(self: *TestContext) void {
63	std.os.deleteTree(allocator, tmp_dir_name) catch {};	63	std.fs.deleteTree(allocator, tmp_dir_name) catch {};
64	allocator.free(self.zig_lib_dir);	64	allocator.free(self.zig_lib_dir);
65	self.zig_compiler.deinit();	65	self.zig_compiler.deinit();
66	self.loop.deinit();	66	self.loop.deinit();
...	@@ -87,10 +87,10 @@ pub const TestContext = struct {	...	@@ -87,10 +87,10 @@ pub const TestContext = struct {
87	) !void {	87	) !void {
88	var file_index_buf: [20]u8 = undefined;	88	var file_index_buf: [20]u8 = undefined;
89	const file_index = try std.fmt.bufPrint(file_index_buf[0..], "{}", self.file_index.incr());	89	const file_index = try std.fmt.bufPrint(file_index_buf[0..], "{}", self.file_index.incr());
90	const file1_path = try std.os.path.join(allocator, [][]const u8{ tmp_dir_name, file_index, file1 });	90	const file1_path = try std.fs.path.join(allocator, [][]const u8{ tmp_dir_name, file_index, file1 });
91		91
92	if (std.os.path.dirname(file1_path)) \|dirname\| {	92	if (std.fs.path.dirname(file1_path)) \|dirname\| {
93	try std.os.makePath(allocator, dirname);	93	try std.fs.makePath(allocator, dirname);
94	}	94	}
95		95
96	// TODO async I/O	96	// TODO async I/O
...	@@ -120,11 +120,11 @@ pub const TestContext = struct {	...	@@ -120,11 +120,11 @@ pub const TestContext = struct {
120	) !void {	120	) !void {
121	var file_index_buf: [20]u8 = undefined;	121	var file_index_buf: [20]u8 = undefined;
122	const file_index = try std.fmt.bufPrint(file_index_buf[0..], "{}", self.file_index.incr());	122	const file_index = try std.fmt.bufPrint(file_index_buf[0..], "{}", self.file_index.incr());
123	const file1_path = try std.os.path.join(allocator, [][]const u8{ tmp_dir_name, file_index, file1 });	123	const file1_path = try std.fs.path.join(allocator, [][]const u8{ tmp_dir_name, file_index, file1 });
124		124
125	const output_file = try std.fmt.allocPrint(allocator, "{}-out{}", file1_path, Target(Target.Native).exeFileExt());	125	const output_file = try std.fmt.allocPrint(allocator, "{}-out{}", file1_path, Target(Target.Native).exeFileExt());
126	if (std.os.path.dirname(file1_path)) \|dirname\| {	126	if (std.fs.path.dirname(file1_path)) \|dirname\| {
127	try std.os.makePath(allocator, dirname);	127	try std.fs.makePath(allocator, dirname);
128	}	128	}
129		129
130	// TODO async I/O	130	// TODO async I/O
...	@@ -164,9 +164,9 @@ pub const TestContext = struct {	...	@@ -164,9 +164,9 @@ pub const TestContext = struct {
164	Compilation.Event.Ok => {	164	Compilation.Event.Ok => {
165	const argv = []const []const u8{exe_file_2};	165	const argv = []const []const u8{exe_file_2};
166	// TODO use event loop	166	// TODO use event loop
167	const child = try std.os.ChildProcess.exec(allocator, argv, null, null, 1024 * 1024);	167	const child = try std.ChildProcess.exec(allocator, argv, null, null, 1024 * 1024);
168	switch (child.term) {	168	switch (child.term) {
169	std.os.ChildProcess.Term.Exited => \|code\| {	169	.Exited => \|code\| {
170	if (code != 0) {	170	if (code != 0) {
171	return error.BadReturnCode;	171	return error.BadReturnCode;
172	}	172	}

src-self-hosted/translate_c.zig+14-14

 @@ -152,10 +152,21 @@ pub fn translate(
     var tree_arena = std.heap.ArenaAllocator.init(backing_allocator);
     errdefer tree_arena.deinit();
-    var arena = &tree_arena.allocator;
-    const root_node = try arena.create(ast.Node.Root);
+    const tree = try tree_arena.allocator.create(ast.Tree);
-    root_node.* = ast.Node.Root{
+    tree.* = ast.Tree{
+        .source = undefined, // need to use Buffer.toOwnedSlice later
+        .root_node = undefined,
+        .arena_allocator = tree_arena,
+        .tokens = undefined, // can't reference the allocator yet
+        .errors = undefined, // can't reference the allocator yet
+    };
+    const arena = &tree.arena_allocator.allocator; // now we can reference the allocator
+    tree.tokens = ast.Tree.TokenList.init(arena);
+    tree.errors = ast.Tree.ErrorList.init(arena);
+    tree.root_node = try arena.create(ast.Node.Root);
+    tree.root_node.* = ast.Node.Root{
         .base = ast.Node{ .id = ast.Node.Id.Root },
         .decls = ast.Node.Root.DeclList.init(arena),
         .doc_comments = null,
 @@ -163,17 +174,6 @@ pub fn translate(
         .eof_token = undefined,
     };
-    const tree = try arena.create(ast.Tree);
-    tree.* = ast.Tree{
-        .source = undefined, // need to use Buffer.toOwnedSlice later
-        .root_node = root_node,
-        .arena_allocator = undefined,
-        .tokens = ast.Tree.TokenList.init(arena),
-        .errors = ast.Tree.ErrorList.init(arena),
-    };
-    tree.arena_allocator = tree_arena;
-    arena = &tree.arena_allocator.allocator;
     var source_buffer = try std.Buffer.initSize(arena, 0);
     var context = Context{

src/all_types.hpp+9

 @@ -1471,6 +1471,7 @@ enum BuiltinFnId {
     BuiltinFnIdErrorReturnTrace,
     BuiltinFnIdAtomicRmw,
     BuiltinFnIdAtomicLoad,
+    BuiltinFnIdHasDecl,
 };
 struct BuiltinFnEntry {
 @@ -2297,6 +2298,7 @@ enum IrInstructionId {
     IrInstructionIdArrayToVector,
     IrInstructionIdAssertZero,
     IrInstructionIdAssertNonNull,
+    IrInstructionIdHasDecl,
 };
 struct IrInstruction {
 @@ -3503,6 +3505,13 @@ struct IrInstructionAssertNonNull {
     IrInstruction *target;
 };
+struct IrInstructionHasDecl {
+    IrInstruction base;
+    IrInstruction *container;
+    IrInstruction *name;
+};
 static const size_t slice_ptr_index = 0;
 static const size_t slice_len_index = 1;

src/codegen.cpp+2

...	@@ -5616,6 +5616,7 @@ static LLVMValueRef ir_render_instruction(CodeGen g, IrExecutable executable,	...	@@ -5616,6 +5616,7 @@ static LLVMValueRef ir_render_instruction(CodeGen g, IrExecutable executable,
5616	case IrInstructionIdLoadPtr:	5616	case IrInstructionIdLoadPtr:
5617	case IrInstructionIdBitCast:	5617	case IrInstructionIdBitCast:
5618	case IrInstructionIdGlobalAsm:	5618	case IrInstructionIdGlobalAsm:
		5619	case IrInstructionIdHasDecl:
5619	zig_unreachable();	5620	zig_unreachable();
5620		5621
5621	case IrInstructionIdDeclVarGen:	5622	case IrInstructionIdDeclVarGen:
...	@@ -7409,6 +7410,7 @@ static void define_builtin_fns(CodeGen *g) {	...	@@ -7409,6 +7410,7 @@ static void define_builtin_fns(CodeGen *g) {
7409	create_builtin_fn(g, BuiltinFnIdToBytes, "sliceToBytes", 1);	7410	create_builtin_fn(g, BuiltinFnIdToBytes, "sliceToBytes", 1);
7410	create_builtin_fn(g, BuiltinFnIdFromBytes, "bytesToSlice", 2);	7411	create_builtin_fn(g, BuiltinFnIdFromBytes, "bytesToSlice", 2);
7411	create_builtin_fn(g, BuiltinFnIdThis, "This", 0);	7412	create_builtin_fn(g, BuiltinFnIdThis, "This", 0);
		7413	create_builtin_fn(g, BuiltinFnIdHasDecl, "hasDecl", 2);
7412	}	7414	}
7413		7415
7414	static const char *bool_to_str(bool b) {	7416	static const char *bool_to_str(bool b) {

src/ir.cpp+77-10

...	@@ -1011,6 +1011,10 @@ static constexpr IrInstructionId ir_instruction_id(IrInstructionAssertNonNull *)	...	@@ -1011,6 +1011,10 @@ static constexpr IrInstructionId ir_instruction_id(IrInstructionAssertNonNull *)
1011	return IrInstructionIdAssertNonNull;	1011	return IrInstructionIdAssertNonNull;
1012	}	1012	}
1013		1013
		1014	static constexpr IrInstructionId ir_instruction_id(IrInstructionHasDecl *) {
		1015	return IrInstructionIdHasDecl;
		1016	}
		1017
1014	template<typename T>	1018	template<typename T>
1015	static T ir_create_instruction(IrBuilder irb, Scope scope, AstNode source_node) {	1019	static T ir_create_instruction(IrBuilder irb, Scope scope, AstNode source_node) {
1016	T *special_instruction = allocate<T>(1);	1020	T *special_instruction = allocate<T>(1);
...	@@ -3014,6 +3018,19 @@ static IrInstruction ir_build_sqrt(IrBuilder irb, Scope scope, AstNode sourc	...	@@ -3014,6 +3018,19 @@ static IrInstruction ir_build_sqrt(IrBuilder irb, Scope scope, AstNode sourc
3014	return &instruction->base;	3018	return &instruction->base;
3015	}	3019	}
3016		3020
		3021	static IrInstruction ir_build_has_decl(IrBuilder irb, Scope scope, AstNode source_node,
		3022	IrInstruction container, IrInstruction name)
		3023	{
		3024	IrInstructionHasDecl *instruction = ir_build_instruction<IrInstructionHasDecl>(irb, scope, source_node);
		3025	instruction->container = container;
		3026	instruction->name = name;
		3027
		3028	ir_ref_instruction(container, irb->current_basic_block);
		3029	ir_ref_instruction(name, irb->current_basic_block);
		3030
		3031	return &instruction->base;
		3032	}
		3033
3017	static IrInstruction ir_build_check_runtime_scope(IrBuilder irb, Scope scope, AstNode source_node, IrInstruction scope_is_comptime, IrInstruction is_comptime) {	3034	static IrInstruction ir_build_check_runtime_scope(IrBuilder irb, Scope scope, AstNode source_node, IrInstruction scope_is_comptime, IrInstruction is_comptime) {
3018	IrInstructionCheckRuntimeScope *instruction = ir_build_instruction<IrInstructionCheckRuntimeScope>(irb, scope, source_node);	3035	IrInstructionCheckRuntimeScope *instruction = ir_build_instruction<IrInstructionCheckRuntimeScope>(irb, scope, source_node);
3019	instruction->scope_is_comptime = scope_is_comptime;	3036	instruction->scope_is_comptime = scope_is_comptime;
...	@@ -5098,6 +5115,21 @@ static IrInstruction ir_gen_builtin_fn_call(IrBuilder irb, Scope *scope, AstNo	...	@@ -5098,6 +5115,21 @@ static IrInstruction ir_gen_builtin_fn_call(IrBuilder irb, Scope *scope, AstNo
5098	}	5115	}
5099	return ir_lval_wrap(irb, scope, result, lval);	5116	return ir_lval_wrap(irb, scope, result, lval);
5100	}	5117	}
		5118	case BuiltinFnIdHasDecl:
		5119	{
		5120	AstNode *arg0_node = node->data.fn_call_expr.params.at(0);
		5121	IrInstruction *arg0_value = ir_gen_node(irb, arg0_node, scope);
		5122	if (arg0_value == irb->codegen->invalid_instruction)
		5123	return arg0_value;
		5124
		5125	AstNode *arg1_node = node->data.fn_call_expr.params.at(1);
		5126	IrInstruction *arg1_value = ir_gen_node(irb, arg1_node, scope);
		5127	if (arg1_value == irb->codegen->invalid_instruction)
		5128	return arg1_value;
		5129
		5130	IrInstruction *has_decl = ir_build_has_decl(irb, scope, node, arg0_value, arg1_value);
		5131	return ir_lval_wrap(irb, scope, has_decl, lval);
		5132	}
5101	}	5133	}
5102	zig_unreachable();	5134	zig_unreachable();
5103	}	5135	}
...	@@ -11489,6 +11521,19 @@ static IrInstruction ir_analyze_int_to_c_ptr(IrAnalyze ira, IrInstruction *sou	...	@@ -11489,6 +11521,19 @@ static IrInstruction ir_analyze_int_to_c_ptr(IrAnalyze ira, IrInstruction *sou
11489	return ir_analyze_int_to_ptr(ira, source_instr, unsigned_integer, dest_type);	11521	return ir_analyze_int_to_ptr(ira, source_instr, unsigned_integer, dest_type);
11490	}	11522	}
11491		11523
		11524	static bool is_pointery_and_elem_is_not_pointery(ZigType *ty) {
		11525	if (ty->id == ZigTypeIdPointer) return ty->data.pointer.child_type->id != ZigTypeIdPointer;
		11526	if (ty->id == ZigTypeIdFn) return true;
		11527	if (ty->id == ZigTypeIdPromise) return true;
		11528	if (ty->id == ZigTypeIdOptional) {
		11529	ZigType *ptr_ty = ty->data.maybe.child_type;
		11530	if (ptr_ty->id == ZigTypeIdPointer) return ptr_ty->data.pointer.child_type->id != ZigTypeIdPointer;
		11531	if (ptr_ty->id == ZigTypeIdFn) return true;
		11532	if (ptr_ty->id == ZigTypeIdPromise) return true;
		11533	}
		11534	return false;
		11535	}
		11536
11492	static IrInstruction ir_analyze_cast(IrAnalyze ira, IrInstruction *source_instr,	11537	static IrInstruction ir_analyze_cast(IrAnalyze ira, IrInstruction *source_instr,
11493	ZigType wanted_type, IrInstruction value)	11538	ZigType wanted_type, IrInstruction value)
11494	{	11539	{
...	@@ -11863,27 +11908,19 @@ static IrInstruction ir_analyze_cast(IrAnalyze ira, IrInstruction *source_inst	...	@@ -11863,27 +11908,19 @@ static IrInstruction ir_analyze_cast(IrAnalyze ira, IrInstruction *source_inst
11863		11908
11864	// cast from T and []T to c_void and ?c_void	11909	// cast from T and []T to c_void and ?c_void
11865	// but don't do it if the actual type is a double pointer	11910	// but don't do it if the actual type is a double pointer
11866	if (actual_type->id == ZigTypeIdPointer && actual_type->data.pointer.child_type->id != ZigTypeIdPointer) {	11911	if (is_pointery_and_elem_is_not_pointery(actual_type)) {
11867	ZigType *dest_ptr_type = nullptr;	11912	ZigType *dest_ptr_type = nullptr;
11868	if (wanted_type->id == ZigTypeIdPointer &&	11913	if (wanted_type->id == ZigTypeIdPointer &&
11869	wanted_type->data.pointer.ptr_len == PtrLenSingle &&
11870	wanted_type->data.pointer.child_type == ira->codegen->builtin_types.entry_c_void)	11914	wanted_type->data.pointer.child_type == ira->codegen->builtin_types.entry_c_void)
11871	{	11915	{
11872	dest_ptr_type = wanted_type;	11916	dest_ptr_type = wanted_type;
11873	} else if (wanted_type->id == ZigTypeIdOptional &&	11917	} else if (wanted_type->id == ZigTypeIdOptional &&
11874	wanted_type->data.maybe.child_type->id == ZigTypeIdPointer &&	11918	wanted_type->data.maybe.child_type->id == ZigTypeIdPointer &&
11875	wanted_type->data.maybe.child_type->data.pointer.ptr_len == PtrLenSingle &&
11876	wanted_type->data.maybe.child_type->data.pointer.child_type == ira->codegen->builtin_types.entry_c_void)	11919	wanted_type->data.maybe.child_type->data.pointer.child_type == ira->codegen->builtin_types.entry_c_void)
11877	{	11920	{
11878	dest_ptr_type = wanted_type->data.maybe.child_type;	11921	dest_ptr_type = wanted_type->data.maybe.child_type;
11879	}	11922	}
11880	if (dest_ptr_type != nullptr &&	11923	if (dest_ptr_type != nullptr) {
11881	(!actual_type->data.pointer.is_const \|\| dest_ptr_type->data.pointer.is_const) &&
11882	(!actual_type->data.pointer.is_volatile \|\| dest_ptr_type->data.pointer.is_volatile) &&
11883	actual_type->data.pointer.bit_offset_in_host == dest_ptr_type->data.pointer.bit_offset_in_host &&
11884	actual_type->data.pointer.host_int_bytes == dest_ptr_type->data.pointer.host_int_bytes &&
11885	get_ptr_align(ira->codegen, actual_type) >= get_ptr_align(ira->codegen, dest_ptr_type))
11886	{
11887	return ir_analyze_ptr_cast(ira, source_instr, value, wanted_type, source_instr, true);	11924	return ir_analyze_ptr_cast(ira, source_instr, value, wanted_type, source_instr, true);
11888	}	11925	}
11889	}	11926	}
...	@@ -23173,6 +23210,33 @@ static IrInstruction ir_analyze_instruction_check_runtime_scope(IrAnalyze ira,	...	@@ -23173,6 +23210,33 @@ static IrInstruction ir_analyze_instruction_check_runtime_scope(IrAnalyze ira,
23173	return ir_const_void(ira, &instruction->base);	23210	return ir_const_void(ira, &instruction->base);
23174	}	23211	}
23175		23212
		23213	static IrInstruction ir_analyze_instruction_has_decl(IrAnalyze ira, IrInstructionHasDecl *instruction) {
		23214	ZigType *container_type = ir_resolve_type(ira, instruction->container->child);
		23215	if (type_is_invalid(container_type))
		23216	return ira->codegen->invalid_instruction;
		23217
		23218	Buf *name = ir_resolve_str(ira, instruction->name->child);
		23219	if (name == nullptr)
		23220	return ira->codegen->invalid_instruction;
		23221
		23222	if (!is_container(container_type)) {
		23223	ir_add_error(ira, instruction->container,
		23224	buf_sprintf("expected struct, enum, or union; found '%s'", buf_ptr(&container_type->name)));
		23225	return ira->codegen->invalid_instruction;
		23226	}
		23227
		23228	ScopeDecls *container_scope = get_container_scope(container_type);
		23229	Tld *tld = find_container_decl(ira->codegen, container_scope, name);
		23230	if (tld == nullptr)
		23231	return ir_const_bool(ira, &instruction->base, false);
		23232
		23233	if (tld->visib_mod == VisibModPrivate && tld->import != get_scope_import(instruction->base.scope)) {
		23234	return ir_const_bool(ira, &instruction->base, false);
		23235	}
		23236
		23237	return ir_const_bool(ira, &instruction->base, true);
		23238	}
		23239
23176	static IrInstruction ir_analyze_instruction_nocast(IrAnalyze ira, IrInstruction *instruction) {	23240	static IrInstruction ir_analyze_instruction_nocast(IrAnalyze ira, IrInstruction *instruction) {
23177	switch (instruction->id) {	23241	switch (instruction->id) {
23178	case IrInstructionIdInvalid:	23242	case IrInstructionIdInvalid:
...	@@ -23467,6 +23531,8 @@ static IrInstruction ir_analyze_instruction_nocast(IrAnalyze ira, IrInstructio	...	@@ -23467,6 +23531,8 @@ static IrInstruction ir_analyze_instruction_nocast(IrAnalyze ira, IrInstructio
23467	return ir_analyze_instruction_enum_to_int(ira, (IrInstructionEnumToInt *)instruction);	23531	return ir_analyze_instruction_enum_to_int(ira, (IrInstructionEnumToInt *)instruction);
23468	case IrInstructionIdCheckRuntimeScope:	23532	case IrInstructionIdCheckRuntimeScope:
23469	return ir_analyze_instruction_check_runtime_scope(ira, (IrInstructionCheckRuntimeScope *)instruction);	23533	return ir_analyze_instruction_check_runtime_scope(ira, (IrInstructionCheckRuntimeScope *)instruction);
		23534	case IrInstructionIdHasDecl:
		23535	return ir_analyze_instruction_has_decl(ira, (IrInstructionHasDecl *)instruction);
23470	}	23536	}
23471	zig_unreachable();	23537	zig_unreachable();
23472	}	23538	}
...	@@ -23703,6 +23769,7 @@ bool ir_has_side_effects(IrInstruction *instruction) {	...	@@ -23703,6 +23769,7 @@ bool ir_has_side_effects(IrInstruction *instruction) {
23703	case IrInstructionIdEnumToInt:	23769	case IrInstructionIdEnumToInt:
23704	case IrInstructionIdVectorToArray:	23770	case IrInstructionIdVectorToArray:
23705	case IrInstructionIdArrayToVector:	23771	case IrInstructionIdArrayToVector:
		23772	case IrInstructionIdHasDecl:
23706	return false;	23773	return false;
23707		23774
23708	case IrInstructionIdAsm:	23775	case IrInstructionIdAsm:

src/ir_print.cpp+11

...	@@ -1453,6 +1453,14 @@ static void ir_print_decl_var_gen(IrPrint irp, IrInstructionDeclVarGen decl_va	...	@@ -1453,6 +1453,14 @@ static void ir_print_decl_var_gen(IrPrint irp, IrInstructionDeclVarGen decl_va
1453	}	1453	}
1454	}	1454	}
1455		1455
		1456	static void ir_print_has_decl(IrPrint irp, IrInstructionHasDecl instruction) {
		1457	fprintf(irp->f, "@hasDecl(");
		1458	ir_print_other_instruction(irp, instruction->container);
		1459	fprintf(irp->f, ",");
		1460	ir_print_other_instruction(irp, instruction->name);
		1461	fprintf(irp->f, ")");
		1462	}
		1463
1456	static void ir_print_instruction(IrPrint irp, IrInstruction instruction) {	1464	static void ir_print_instruction(IrPrint irp, IrInstruction instruction) {
1457	ir_print_prefix(irp, instruction);	1465	ir_print_prefix(irp, instruction);
1458	switch (instruction->id) {	1466	switch (instruction->id) {
...	@@ -1920,6 +1928,9 @@ static void ir_print_instruction(IrPrint irp, IrInstruction instruction) {	...	@@ -1920,6 +1928,9 @@ static void ir_print_instruction(IrPrint irp, IrInstruction instruction) {
1920	case IrInstructionIdResizeSlice:	1928	case IrInstructionIdResizeSlice:
1921	ir_print_resize_slice(irp, (IrInstructionResizeSlice *)instruction);	1929	ir_print_resize_slice(irp, (IrInstructionResizeSlice *)instruction);
1922	break;	1930	break;
		1931	case IrInstructionIdHasDecl:
		1932	ir_print_has_decl(irp, (IrInstructionHasDecl *)instruction);
		1933	break;
1923	}	1934	}
1924	fprintf(irp->f, "\n");	1935	fprintf(irp->f, "\n");
1925	}	1936	}

src/link.cpp-8

...	@@ -776,14 +776,6 @@ static const char get_libc_crt_file(CodeGen parent, const char *file) {	...	@@ -776,14 +776,6 @@ static const char get_libc_crt_file(CodeGen parent, const char *file) {
776	}	776	}
777		777
778	static Buf build_a_raw(CodeGen parent_gen, const char aname, Buf full_path, OutType child_out_type) {	778	static Buf build_a_raw(CodeGen parent_gen, const char aname, Buf full_path, OutType child_out_type) {
779	// The Mach-O LLD code is not well maintained, and trips an assertion
780	// when we link compiler_rt and libc.zig as libraries rather than objects.
781	// Here we workaround this by having compiler_rt and libc.zig be objects.
782	// TODO write our own linker. https://github.com/ziglang/zig/issues/1535
783	if (parent_gen->zig_target->os == OsMacOSX) {
784	child_out_type = OutTypeObj;
785	}
786
787	CodeGen *child_gen = create_child_codegen(parent_gen, full_path, child_out_type,	779	CodeGen *child_gen = create_child_codegen(parent_gen, full_path, child_out_type,
788	parent_gen->libc);	780	parent_gen->libc);
789	codegen_set_out_name(child_gen, buf_create_from_str(aname));	781	codegen_set_out_name(child_gen, buf_create_from_str(aname));

src/os.cpp+1-1

...	@@ -1350,7 +1350,7 @@ static void init_rand() {	...	@@ -1350,7 +1350,7 @@ static void init_rand() {
1350	zig_panic("unable to open /dev/urandom");	1350	zig_panic("unable to open /dev/urandom");
1351	}	1351	}
1352	char bytes[sizeof(unsigned)];	1352	char bytes[sizeof(unsigned)];
1353	size_t amt_read;	1353	ssize_t amt_read;
1354	while ((amt_read = read(fd, bytes, sizeof(unsigned))) == -1) {	1354	while ((amt_read = read(fd, bytes, sizeof(unsigned))) == -1) {
1355	if (errno == EINTR) continue;	1355	if (errno == EINTR) continue;
1356	zig_panic("unable to read /dev/urandom");	1356	zig_panic("unable to read /dev/urandom");

src/zig_llvm.cpp+1

...	@@ -877,6 +877,7 @@ bool ZigLLVMWriteArchive(const char archive_name, const char *file_names, size	...	@@ -877,6 +877,7 @@ bool ZigLLVMWriteArchive(const char archive_name, const char *file_names, size
877	case ZigLLVM_Linux:	877	case ZigLLVM_Linux:
878	kind = object::Archive::K_GNU;	878	kind = object::Archive::K_GNU;
879	break;	879	break;
		880	case ZigLLVM_MacOSX:
880	case ZigLLVM_Darwin:	881	case ZigLLVM_Darwin:
881	case ZigLLVM_IOS:	882	case ZigLLVM_IOS:
882	kind = object::Archive::K_DARWIN;	883	kind = object::Archive::K_DARWIN;

std/atomic/queue.zig+6-6

std/atomic/stack.zig+6-6

std/buffer.zig+1-3

 @@ -139,15 +139,13 @@ pub const Buffer = struct {
 };
 test "simple Buffer" {
-    const cstr = @import("cstr.zig");
     var buf = try Buffer.init(debug.global_allocator, "");
     testing.expect(buf.len() == 0);
     try buf.append("hello");
     try buf.append(" ");
     try buf.append("world");
     testing.expect(buf.eql("hello world"));
-    testing.expect(mem.eql(u8, cstr.toSliceConst(buf.toSliceConst().ptr), buf.toSliceConst()));
+    testing.expect(mem.eql(u8, mem.toSliceConst(u8, buf.toSliceConst().ptr), buf.toSliceConst()));
     var buf2 = try Buffer.initFromBuffer(buf);
     testing.expect(buf.eql(buf2.toSliceConst()));

std/build.zig+86-86

 @@ -1,6 +1,7 @@
 const std = @import("std.zig");
 const builtin = @import("builtin");
 const io = std.io;
+const fs = std.fs;
 const mem = std.mem;
 const debug = std.debug;
 const assert = debug.assert;
 @@ -8,12 +9,11 @@ const warn = std.debug.warn;
 const ArrayList = std.ArrayList;
 const HashMap = std.HashMap;
 const Allocator = mem.Allocator;
-const os = std.os;
+const process = std.process;
-const StdIo = os.ChildProcess.StdIo;
-const Term = os.ChildProcess.Term;
 const BufSet = std.BufSet;
 const BufMap = std.BufMap;
 const fmt_lib = std.fmt;
+const File = std.fs.File;
 pub const FmtStep = @import("build/fmt.zig").FmtStep;
 @@ -95,11 +95,11 @@ pub const Builder = struct {
     pub fn init(allocator: *Allocator, zig_exe: []const u8, build_root: []const u8, cache_root: []const u8) Builder {
         const env_map = allocator.create(BufMap) catch unreachable;
-        env_map.* = os.getEnvMap(allocator) catch unreachable;
+        env_map.* = process.getEnvMap(allocator) catch unreachable;
         var self = Builder{
             .zig_exe = zig_exe,
             .build_root = build_root,
-            .cache_root = os.path.relative(allocator, build_root, cache_root) catch unreachable,
+            .cache_root = fs.path.relative(allocator, build_root, cache_root) catch unreachable,
             .verbose = false,
             .verbose_tokenize = false,
             .verbose_ast = false,
 @@ -153,8 +153,8 @@ pub const Builder = struct {
     pub fn setInstallPrefix(self: *Builder, maybe_prefix: ?[]const u8) void {
         self.prefix = maybe_prefix orelse "/usr/local"; // TODO better default
-        self.lib_dir = os.path.join(self.allocator, [][]const u8{ self.prefix, "lib" }) catch unreachable;
+        self.lib_dir = fs.path.join(self.allocator, [][]const u8{ self.prefix, "lib" }) catch unreachable;
-        self.exe_dir = os.path.join(self.allocator, [][]const u8{ self.prefix, "bin" }) catch unreachable;
+        self.exe_dir = fs.path.join(self.allocator, [][]const u8{ self.prefix, "bin" }) catch unreachable;
     }
     pub fn addExecutable(self: *Builder, name: []const u8, root_src: ?[]const u8) *LibExeObjStep {
 @@ -286,7 +286,7 @@ pub const Builder = struct {
             if (self.verbose) {
                 warn("rm {}\n", installed_file);
             }
-            os.deleteFile(installed_file) catch {};
+            fs.deleteFile(installed_file) catch {};
         }
         // TODO remove empty directories
 @@ -325,7 +325,7 @@ pub const Builder = struct {
     fn detectNativeSystemPaths(self: *Builder) void {
         var is_nixos = false;
-        if (os.getEnvVarOwned(self.allocator, "NIX_CFLAGS_COMPILE")) |nix_cflags_compile| {
+        if (process.getEnvVarOwned(self.allocator, "NIX_CFLAGS_COMPILE")) |nix_cflags_compile| {
             is_nixos = true;
             var it = mem.tokenize(nix_cflags_compile, " ");
             while (true) {
 @@ -344,7 +344,7 @@ pub const Builder = struct {
         } else |err| {
             assert(err == error.EnvironmentVariableNotFound);
         }
-        if (os.getEnvVarOwned(self.allocator, "NIX_LDFLAGS")) |nix_ldflags| {
+        if (process.getEnvVarOwned(self.allocator, "NIX_LDFLAGS")) |nix_ldflags| {
             is_nixos = true;
             var it = mem.tokenize(nix_ldflags, " ");
             while (true) {
 @@ -368,7 +368,7 @@ pub const Builder = struct {
         }
         if (is_nixos) return;
         switch (builtin.os) {
-            builtin.Os.windows => {},
+            .windows => {},
             else => {
                 const triple = (CrossTarget{
                     .arch = builtin.arch,
 @@ -601,7 +601,7 @@ pub const Builder = struct {
             printCmd(cwd, argv);
         }
-        const child = os.ChildProcess.init(argv, self.allocator) catch unreachable;
+        const child = std.ChildProcess.init(argv, self.allocator) catch unreachable;
         defer child.deinit();
         child.cwd = cwd;
 @@ -613,7 +613,7 @@ pub const Builder = struct {
         };
         switch (term) {
-            Term.Exited => |code| {
+            .Exited => |code| {
                 if (code != 0) {
                     warn("The following command exited with error code {}:\n", code);
                     printCmd(cwd, argv);
 @@ -630,7 +630,7 @@ pub const Builder = struct {
     }
     pub fn makePath(self: *Builder, path: []const u8) !void {
-        os.makePath(self.allocator, self.pathFromRoot(path)) catch |err| {
+        fs.makePath(self.allocator, self.pathFromRoot(path)) catch |err| {
             warn("Unable to create path {}: {}\n", path, @errorName(err));
             return err;
         };
 @@ -651,7 +651,7 @@ pub const Builder = struct {
     ///::dest_rel_path is relative to prefix path or it can be an absolute path
     pub fn addInstallFile(self: *Builder, src_path: []const u8, dest_rel_path: []const u8) *InstallFileStep {
-        const full_dest_path = os.path.resolve(
+        const full_dest_path = fs.path.resolve(
             self.allocator,
             [][]const u8{ self.prefix, dest_rel_path },
         ) catch unreachable;
 @@ -668,28 +668,28 @@ pub const Builder = struct {
     }
     fn copyFile(self: *Builder, source_path: []const u8, dest_path: []const u8) !void {
-        return self.copyFileMode(source_path, dest_path, os.File.default_mode);
+        return self.copyFileMode(source_path, dest_path, File.default_mode);
     }
-    fn copyFileMode(self: *Builder, source_path: []const u8, dest_path: []const u8, mode: os.File.Mode) !void {
+    fn copyFileMode(self: *Builder, source_path: []const u8, dest_path: []const u8, mode: File.Mode) !void {
         if (self.verbose) {
             warn("cp {} {}\n", source_path, dest_path);
         }
-        const dirname = os.path.dirname(dest_path) orelse ".";
+        const dirname = fs.path.dirname(dest_path) orelse ".";
         const abs_source_path = self.pathFromRoot(source_path);
-        os.makePath(self.allocator, dirname) catch |err| {
+        fs.makePath(self.allocator, dirname) catch |err| {
             warn("Unable to create path {}: {}\n", dirname, @errorName(err));
             return err;
         };
-        os.copyFileMode(abs_source_path, dest_path, mode) catch |err| {
+        fs.copyFileMode(abs_source_path, dest_path, mode) catch |err| {
             warn("Unable to copy {} to {}: {}\n", abs_source_path, dest_path, @errorName(err));
             return err;
         };
     }
     fn pathFromRoot(self: *Builder, rel_path: []const u8) []u8 {
-        return os.path.resolve(self.allocator, [][]const u8{ self.build_root, rel_path }) catch unreachable;
+        return fs.path.resolve(self.allocator, [][]const u8{ self.build_root, rel_path }) catch unreachable;
     }
     pub fn fmt(self: *Builder, comptime format: []const u8, args: ...) []u8 {
 @@ -701,11 +701,11 @@ pub const Builder = struct {
         const exe_extension = (Target{ .Native = {} }).exeFileExt();
         for (self.search_prefixes.toSliceConst()) |search_prefix| {
             for (names) |name| {
-                if (os.path.isAbsolute(name)) {
+                if (fs.path.isAbsolute(name)) {
                     return name;
                 }
-                const full_path = try os.path.join(self.allocator, [][]const u8{ search_prefix, "bin", self.fmt("{}{}", name, exe_extension) });
+                const full_path = try fs.path.join(self.allocator, [][]const u8{ search_prefix, "bin", self.fmt("{}{}", name, exe_extension) });
-                if (os.path.real(self.allocator, full_path)) |real_path| {
+                if (fs.path.real(self.allocator, full_path)) |real_path| {
                     return real_path;
                 } else |_| {
                     continue;
 @@ -714,13 +714,13 @@ pub const Builder = struct {
         }
         if (self.env_map.get("PATH")) |PATH| {
             for (names) |name| {
-                if (os.path.isAbsolute(name)) {
+                if (fs.path.isAbsolute(name)) {
                     return name;
                 }
-                var it = mem.tokenize(PATH, []u8{os.path.delimiter});
+                var it = mem.tokenize(PATH, []u8{fs.path.delimiter});
                 while (it.next()) |path| {
-                    const full_path = try os.path.join(self.allocator, [][]const u8{ path, self.fmt("{}{}", name, exe_extension) });
+                    const full_path = try fs.path.join(self.allocator, [][]const u8{ path, self.fmt("{}{}", name, exe_extension) });
-                    if (os.path.real(self.allocator, full_path)) |real_path| {
+                    if (fs.path.real(self.allocator, full_path)) |real_path| {
                         return real_path;
                     } else |_| {
                         continue;
 @@ -729,12 +729,12 @@ pub const Builder = struct {
             }
         }
         for (names) |name| {
-            if (os.path.isAbsolute(name)) {
+            if (fs.path.isAbsolute(name)) {
                 return name;
             }
             for (paths) |path| {
-                const full_path = try os.path.join(self.allocator, [][]const u8{ path, self.fmt("{}{}", name, exe_extension) });
+                const full_path = try fs.path.join(self.allocator, [][]const u8{ path, self.fmt("{}{}", name, exe_extension) });
-                if (os.path.real(self.allocator, full_path)) |real_path| {
+                if (fs.path.real(self.allocator, full_path)) |real_path| {
                     return real_path;
                 } else |_| {
                     continue;
 @@ -748,12 +748,12 @@ pub const Builder = struct {
         assert(argv.len != 0);
         const max_output_size = 100 * 1024;
-        const child = try os.ChildProcess.init(argv, self.allocator);
+        const child = try std.ChildProcess.init(argv, self.allocator);
         defer child.deinit();
-        child.stdin_behavior = os.ChildProcess.StdIo.Ignore;
+        child.stdin_behavior = .Ignore;
-        child.stdout_behavior = os.ChildProcess.StdIo.Pipe;
+        child.stdout_behavior = .Pipe;
-        child.stderr_behavior = os.ChildProcess.StdIo.Inherit;
+        child.stderr_behavior = .Inherit;
         try child.spawn();
 @@ -765,7 +765,7 @@ pub const Builder = struct {
         const term = child.wait() catch |err| std.debug.panic("unable to spawn {}: {}", argv[0], err);
         switch (term) {
-            os.ChildProcess.Term.Exited => |code| {
+            .Exited => |code| {
                 if (code != 0) {
                     warn("The following command exited with error code {}:\n", code);
                     printCmd(null, argv);
 @@ -845,8 +845,8 @@ pub const Target = union(enum) {
         }
     }
-    pub fn oFileExt(self: *const Target) []const u8 {
+    pub fn oFileExt(self: Target) []const u8 {
-        const abi = switch (self.*) {
+        const abi = switch (self) {
             Target.Native => builtin.abi,
             Target.Cross => |t| t.abi,
         };
 @@ -856,49 +856,49 @@ pub const Target = union(enum) {
         };
     }
-    pub fn exeFileExt(self: *const Target) []const u8 {
+    pub fn exeFileExt(self: Target) []const u8 {
         return switch (self.getOs()) {
-            builtin.Os.windows => ".exe",
+            .windows => ".exe",
             else => "",
         };
     }
-    pub fn libFileExt(self: *const Target) []const u8 {
+    pub fn libFileExt(self: Target) []const u8 {
         return switch (self.getOs()) {
-            builtin.Os.windows => ".lib",
+            .windows => ".lib",
             else => ".a",
         };
     }
-    pub fn getOs(self: *const Target) builtin.Os {
+    pub fn getOs(self: Target) builtin.Os {
-        return switch (self.*) {
+        return switch (self) {
             Target.Native => builtin.os,
             Target.Cross => |t| t.os,
         };
     }
-    pub fn isDarwin(self: *const Target) bool {
+    pub fn isDarwin(self: Target) bool {
         return switch (self.getOs()) {
-            builtin.Os.ios, builtin.Os.macosx => true,
+            .ios, .macosx, .watchos, .tvos => true,
             else => false,
         };
     }
-    pub fn isWindows(self: *const Target) bool {
+    pub fn isWindows(self: Target) bool {
         return switch (self.getOs()) {
-            builtin.Os.windows => true,
+            .windows => true,
             else => false,
         };
     }
-    pub fn isFreeBSD(self: *const Target) bool {
+    pub fn isFreeBSD(self: Target) bool {
         return switch (self.getOs()) {
-            builtin.Os.freebsd => true,
+            .freebsd => true,
             else => false,
         };
     }
-    pub fn wantSharedLibSymLinks(self: *const Target) bool {
+    pub fn wantSharedLibSymLinks(self: Target) bool {
         return !self.isWindows();
     }
 };
 @@ -1064,19 +1064,19 @@ pub const LibExeObjStep = struct {
     fn computeOutFileNames(self: *LibExeObjStep) void {
         switch (self.kind) {
-            Kind.Obj => {
+            .Obj => {
                 self.out_filename = self.builder.fmt("{}{}", self.name, self.target.oFileExt());
             },
-            Kind.Exe => {
+            .Exe => {
                 self.out_filename = self.builder.fmt("{}{}", self.name, self.target.exeFileExt());
             },
-            Kind.Test => {
+            .Test => {
                 self.out_filename = self.builder.fmt("test{}", self.target.exeFileExt());
             },
-            Kind.Lib => {
+            .Lib => {
                 if (!self.is_dynamic) {
                     switch (self.target.getOs()) {
-                        builtin.Os.windows => {
+                        .windows => {
                             self.out_filename = self.builder.fmt("{}.lib", self.name);
                         },
                         else => {
 @@ -1086,13 +1086,13 @@ pub const LibExeObjStep = struct {
                     self.out_lib_filename = self.out_filename;
                 } else {
                     switch (self.target.getOs()) {
-                        builtin.Os.ios, builtin.Os.macosx => {
+                        .ios, .macosx => {
                             self.out_filename = self.builder.fmt("lib{}.{d}.{d}.{d}.dylib", self.name, self.version.major, self.version.minor, self.version.patch);
                             self.major_only_filename = self.builder.fmt("lib{}.{d}.dylib", self.name, self.version.major);
                             self.name_only_filename = self.builder.fmt("lib{}.dylib", self.name);
                             self.out_lib_filename = self.out_filename;
                         },
-                        builtin.Os.windows => {
+                        .windows => {
                             self.out_filename = self.builder.fmt("{}.dll", self.name);
                             self.out_lib_filename = self.builder.fmt("{}.lib", self.name);
                         },
 @@ -1227,7 +1227,7 @@ pub const LibExeObjStep = struct {
     /// the make step, from a step that has declared a dependency on this one.
     /// To run an executable built with zig build, use `run`, or create an install step and invoke it.
     pub fn getOutputPath(self: *LibExeObjStep) []const u8 {
-        return os.path.join(
+        return fs.path.join(
             self.builder.allocator,
             [][]const u8{ self.output_dir.?, self.out_filename },
         ) catch unreachable;
 @@ -1237,7 +1237,7 @@ pub const LibExeObjStep = struct {
     /// the make step, from a step that has declared a dependency on this one.
     pub fn getOutputLibPath(self: *LibExeObjStep) []const u8 {
         assert(self.kind == Kind.Lib);
-        return os.path.join(
+        return fs.path.join(
             self.builder.allocator,
             [][]const u8{ self.output_dir.?, self.out_lib_filename },
         ) catch unreachable;
 @@ -1248,7 +1248,7 @@ pub const LibExeObjStep = struct {
     pub fn getOutputHPath(self: *LibExeObjStep) []const u8 {
         assert(self.kind != Kind.Exe);
         assert(!self.disable_gen_h);
-        return os.path.join(
+        return fs.path.join(
             self.builder.allocator,
             [][]const u8{ self.output_dir.?, self.out_h_filename },
         ) catch unreachable;
 @@ -1364,7 +1364,7 @@ pub const LibExeObjStep = struct {
                             try zig_args.append("--library");
                             try zig_args.append(full_path_lib);
-                            if (os.path.dirname(full_path_lib)) |dirname| {
+                            if (fs.path.dirname(full_path_lib)) |dirname| {
                                 try zig_args.append("-rpath");
                                 try zig_args.append(dirname);
                             }
 @@ -1390,7 +1390,7 @@ pub const LibExeObjStep = struct {
         }
         if (self.build_options_contents.len() > 0) {
-            const build_options_file = try os.path.join(
+            const build_options_file = try fs.path.join(
                 builder.allocator,
                 [][]const u8{ builder.cache_root, builder.fmt("{}_build_options.zig", self.name) },
             );
 @@ -1502,7 +1502,7 @@ pub const LibExeObjStep = struct {
                 IncludeDir.OtherStep => |other| {
                     const h_path = other.getOutputHPath();
                     try zig_args.append("-isystem");
-                    try zig_args.append(os.path.dirname(h_path).?);
+                    try zig_args.append(fs.path.dirname(h_path).?);
                 },
             }
         }
 @@ -1575,7 +1575,7 @@ pub const LibExeObjStep = struct {
             const output_path_nl = try builder.exec(zig_args.toSliceConst());
             const output_path = mem.trimRight(u8, output_path_nl, "\r\n");
-            self.output_dir = os.path.dirname(output_path).?;
+            self.output_dir = fs.path.dirname(output_path).?;
         }
         if (self.kind == Kind.Lib and self.is_dynamic and self.target.wantSharedLibSymLinks()) {
 @@ -1636,20 +1636,20 @@ pub const RunStep = struct {
     }
     pub fn addPathDir(self: *RunStep, search_path: []const u8) void {
-        const PATH = if (builtin.os == builtin.Os.windows) "Path" else "PATH";
+        const PATH = if (std.os.windows.is_the_target) "Path" else "PATH";
         const env_map = self.getEnvMap();
         const prev_path = env_map.get(PATH) orelse {
             env_map.set(PATH, search_path) catch unreachable;
             return;
         };
-        const new_path = self.builder.fmt("{}" ++ [1]u8{os.path.delimiter} ++ "{}", prev_path, search_path);
+        const new_path = self.builder.fmt("{}" ++ [1]u8{fs.path.delimiter} ++ "{}", prev_path, search_path);
         env_map.set(PATH, new_path) catch unreachable;
     }
     pub fn getEnvMap(self: *RunStep) *BufMap {
         return self.env_map orelse {
             const env_map = self.builder.allocator.create(BufMap) catch unreachable;
-            env_map.* = os.getEnvMap(self.builder.allocator) catch unreachable;
+            env_map.* = process.getEnvMap(self.builder.allocator) catch unreachable;
             self.env_map = env_map;
             return env_map;
         };
 @@ -1687,7 +1687,7 @@ pub const RunStep = struct {
             switch (link_object) {
                 LibExeObjStep.LinkObject.OtherStep => |other| {
                     if (other.target.isWindows() and other.isDynamicLibrary()) {
-                        self.addPathDir(os.path.dirname(other.getOutputPath()).?);
+                        self.addPathDir(fs.path.dirname(other.getOutputPath()).?);
                         self.addPathForDynLibs(other);
                     }
                 },
 @@ -1717,7 +1717,7 @@ const InstallArtifactStep = struct {
             .builder = builder,
             .step = Step.init(builder.fmt("install {}", artifact.step.name), builder.allocator, make),
             .artifact = artifact,
-            .dest_file = os.path.join(
+            .dest_file = fs.path.join(
                 builder.allocator,
                 [][]const u8{ dest_dir, artifact.out_filename },
             ) catch unreachable,
 @@ -1725,11 +1725,11 @@ const InstallArtifactStep = struct {
         self.step.dependOn(&artifact.step);
         builder.pushInstalledFile(self.dest_file);
         if (self.artifact.kind == LibExeObjStep.Kind.Lib and self.artifact.is_dynamic) {
-            builder.pushInstalledFile(os.path.join(
+            builder.pushInstalledFile(fs.path.join(
                 builder.allocator,
                 [][]const u8{ builder.lib_dir, artifact.major_only_filename },
             ) catch unreachable);
-            builder.pushInstalledFile(os.path.join(
+            builder.pushInstalledFile(fs.path.join(
                 builder.allocator,
                 [][]const u8{ builder.lib_dir, artifact.name_only_filename },
             ) catch unreachable);
 @@ -1742,12 +1742,12 @@ const InstallArtifactStep = struct {
         const builder = self.builder;
         const mode = switch (builtin.os) {
-            builtin.Os.windows => {},
+            .windows => {},
             else => switch (self.artifact.kind) {
-                LibExeObjStep.Kind.Obj => unreachable,
+                .Obj => unreachable,
-                LibExeObjStep.Kind.Test => unreachable,
+                .Test => unreachable,
-                LibExeObjStep.Kind.Exe => u32(0o755),
+                .Exe => u32(0o755),
-                LibExeObjStep.Kind.Lib => if (!self.artifact.is_dynamic) u32(0o666) else u32(0o755),
+                .Lib => if (!self.artifact.is_dynamic) u32(0o666) else u32(0o755),
             },
         };
         try builder.copyFileMode(self.artifact.getOutputPath(), self.dest_file, mode);
 @@ -1796,8 +1796,8 @@ pub const WriteFileStep = struct {
     fn make(step: *Step) !void {
         const self = @fieldParentPtr(WriteFileStep, "step", step);
         const full_path = self.builder.pathFromRoot(self.file_path);
-        const full_path_dir = os.path.dirname(full_path) orelse ".";
+        const full_path_dir = fs.path.dirname(full_path) orelse ".";
-        os.makePath(self.builder.allocator, full_path_dir) catch |err| {
+        fs.makePath(self.builder.allocator, full_path_dir) catch |err| {
             warn("unable to make path {}: {}\n", full_path_dir, @errorName(err));
             return err;
         };
 @@ -1844,7 +1844,7 @@ pub const RemoveDirStep = struct {
         const self = @fieldParentPtr(RemoveDirStep, "step", step);
         const full_path = self.builder.pathFromRoot(self.dir_path);
-        os.deleteTree(self.builder.allocator, full_path) catch |err| {
+        fs.deleteTree(self.builder.allocator, full_path) catch |err| {
             warn("Unable to remove {}: {}\n", full_path, @errorName(err));
             return err;
         };
 @@ -1886,23 +1886,23 @@ pub const Step = struct {
 };
 fn doAtomicSymLinks(allocator: *Allocator, output_path: []const u8, filename_major_only: []const u8, filename_name_only: []const u8) !void {
-    const out_dir = os.path.dirname(output_path) orelse ".";
+    const out_dir = fs.path.dirname(output_path) orelse ".";
-    const out_basename = os.path.basename(output_path);
+    const out_basename = fs.path.basename(output_path);
     // sym link for libfoo.so.1 to libfoo.so.1.2.3
-    const major_only_path = os.path.join(
+    const major_only_path = fs.path.join(
         allocator,
         [][]const u8{ out_dir, filename_major_only },
     ) catch unreachable;
-    os.atomicSymLink(allocator, out_basename, major_only_path) catch |err| {
+    fs.atomicSymLink(allocator, out_basename, major_only_path) catch |err| {
         warn("Unable to symlink {} -> {}\n", major_only_path, out_basename);
         return err;
     };
     // sym link for libfoo.so to libfoo.so.1
-    const name_only_path = os.path.join(
+    const name_only_path = fs.path.join(
         allocator,
         [][]const u8{ out_dir, filename_name_only },
     ) catch unreachable;
-    os.atomicSymLink(allocator, filename_major_only, name_only_path) catch |err| {
+    fs.atomicSymLink(allocator, filename_major_only, name_only_path) catch |err| {
         warn("Unable to symlink {} -> {}\n", name_only_path, filename_major_only);
         return err;
     };

std/c.zig+72-30

 @@ -1,18 +1,28 @@
 const builtin = @import("builtin");
-const Os = builtin.Os;
+const std = @import("std");
+const page_size = std.mem.page_size;
+pub use @import("os/bits.zig");
 pub use switch (builtin.os) {
-    Os.linux => @import("c/linux.zig"),
+    .linux => @import("c/linux.zig"),
-    Os.windows => @import("c/windows.zig"),
+    .windows => @import("c/windows.zig"),
-    Os.macosx, Os.ios => @import("c/darwin.zig"),
+    .macosx, .ios, .tvos, .watchos => @import("c/darwin.zig"),
-    Os.freebsd => @import("c/freebsd.zig"),
+    .freebsd => @import("c/freebsd.zig"),
-    Os.netbsd => @import("c/netbsd.zig"),
+    .netbsd => @import("c/netbsd.zig"),
     else => struct {},
 };
+pub fn getErrno(rc: var) u16 {
+    if (rc == -1) {
+        return @intCast(u16, _errno().*);
+    } else {
+        return 0;
+    }
+}
 // TODO https://github.com/ziglang/zig/issues/265 on this whole file
-pub const FILE = @OpaqueType();
 pub extern "c" fn fopen(filename: [*]const u8, modes: [*]const u8) ?*FILE;
 pub extern "c" fn fclose(stream: *FILE) c_int;
 pub extern "c" fn fwrite(ptr: [*]const u8, size_of_type: usize, item_count: usize, stream: *FILE) usize;
 @@ -20,33 +30,38 @@ pub extern "c" fn fread(ptr: [*]u8, size_of_type: usize, item_count: usize, stre
 pub extern "c" fn abort() noreturn;
 pub extern "c" fn exit(code: c_int) noreturn;
-pub extern "c" fn isatty(fd: c_int) c_int;
+pub extern "c" fn isatty(fd: fd_t) c_int;
-pub extern "c" fn close(fd: c_int) c_int;
+pub extern "c" fn close(fd: fd_t) c_int;
-pub extern "c" fn fstat(fd: c_int, buf: *Stat) c_int;
+pub extern "c" fn @"close$NOCANCEL"(fd: fd_t) c_int;
-pub extern "c" fn @"fstat$INODE64"(fd: c_int, buf: *Stat) c_int;
+pub extern "c" fn fstat(fd: fd_t, buf: *Stat) c_int;
-pub extern "c" fn lseek(fd: c_int, offset: isize, whence: c_int) isize;
+pub extern "c" fn @"fstat$INODE64"(fd: fd_t, buf: *Stat) c_int;
-pub extern "c" fn open(path: [*]const u8, oflag: c_int, ...) c_int;
+pub extern "c" fn lseek(fd: fd_t, offset: isize, whence: c_int) isize;
+pub extern "c" fn open(path: [*]const u8, oflag: c_uint, ...) c_int;
 pub extern "c" fn raise(sig: c_int) c_int;
-pub extern "c" fn read(fd: c_int, buf: *c_void, nbyte: usize) isize;
+pub extern "c" fn read(fd: fd_t, buf: [*]u8, nbyte: usize) isize;
-pub extern "c" fn pread(fd: c_int, buf: *c_void, nbyte: usize, offset: u64) isize;
+pub extern "c" fn pread(fd: fd_t, buf: [*]u8, nbyte: usize, offset: u64) isize;
+pub extern "c" fn preadv(fd: c_int, iov: [*]const iovec, iovcnt: c_uint, offset: usize) isize;
+pub extern "c" fn pwritev(fd: c_int, iov: [*]const iovec_const, iovcnt: c_uint, offset: usize) isize;
 pub extern "c" fn stat(noalias path: [*]const u8, noalias buf: *Stat) c_int;
-pub extern "c" fn write(fd: c_int, buf: *const c_void, nbyte: usize) isize;
+pub extern "c" fn write(fd: fd_t, buf: [*]const u8, nbyte: usize) isize;
-pub extern "c" fn pwrite(fd: c_int, buf: *const c_void, nbyte: usize, offset: u64) isize;
+pub extern "c" fn pwrite(fd: fd_t, buf: [*]const u8, nbyte: usize, offset: u64) isize;
-pub extern "c" fn mmap(addr: ?*c_void, len: usize, prot: c_int, flags: c_int, fd: c_int, offset: isize) ?*c_void;
+pub extern "c" fn mmap(addr: ?*align(page_size) c_void, len: usize, prot: c_uint, flags: c_uint, fd: fd_t, offset: isize) *c_void;
-pub extern "c" fn munmap(addr: ?*c_void, len: usize) c_int;
+pub extern "c" fn munmap(addr: *align(page_size) c_void, len: usize) c_int;
+pub extern "c" fn mprotect(addr: *align(page_size) c_void, len: usize, prot: c_uint) c_int;
 pub extern "c" fn unlink(path: [*]const u8) c_int;
 pub extern "c" fn getcwd(buf: [*]u8, size: usize) ?[*]u8;
-pub extern "c" fn waitpid(pid: c_int, stat_loc: *c_int, options: c_int) c_int;
+pub extern "c" fn waitpid(pid: c_int, stat_loc: *c_uint, options: c_uint) c_int;
 pub extern "c" fn fork() c_int;
 pub extern "c" fn access(path: [*]const u8, mode: c_uint) c_int;
-pub extern "c" fn pipe(fds: *[2]c_int) c_int;
+pub extern "c" fn pipe(fds: *[2]fd_t) c_int;
+pub extern "c" fn pipe2(fds: *[2]fd_t, flags: u32) c_int;
 pub extern "c" fn mkdir(path: [*]const u8, mode: c_uint) c_int;
 pub extern "c" fn symlink(existing: [*]const u8, new: [*]const u8) c_int;
 pub extern "c" fn rename(old: [*]const u8, new: [*]const u8) c_int;
 pub extern "c" fn chdir(path: [*]const u8) c_int;
 pub extern "c" fn execve(path: [*]const u8, argv: [*]const ?[*]const u8, envp: [*]const ?[*]const u8) c_int;
-pub extern "c" fn dup(fd: c_int) c_int;
+pub extern "c" fn dup(fd: fd_t) c_int;
-pub extern "c" fn dup2(old_fd: c_int, new_fd: c_int) c_int;
+pub extern "c" fn dup2(old_fd: fd_t, new_fd: fd_t) c_int;
 pub extern "c" fn readlink(noalias path: [*]const u8, noalias buf: [*]u8, bufsize: usize) isize;
 pub extern "c" fn realpath(noalias file_name: [*]const u8, noalias resolved_name: [*]u8) ?[*]u8;
 pub extern "c" fn sigprocmask(how: c_int, noalias set: *const sigset_t, noalias oset: ?*sigset_t) c_int;
 @@ -56,6 +71,25 @@ pub extern "c" fn nanosleep(rqtp: *const timespec, rmtp: ?*timespec) c_int;
 pub extern "c" fn setreuid(ruid: c_uint, euid: c_uint) c_int;
 pub extern "c" fn setregid(rgid: c_uint, egid: c_uint) c_int;
 pub extern "c" fn rmdir(path: [*]const u8) c_int;
+pub extern "c" fn getenv(name: [*]const u8) ?[*]u8;
+pub extern "c" fn sysctl(name: [*]const c_int, namelen: c_uint, oldp: ?*c_void, oldlenp: ?*usize, newp: ?*c_void, newlen: usize) c_int;
+pub extern "c" fn sysctlbyname(name: [*]const u8, oldp: ?*c_void, oldlenp: ?*usize, newp: ?*c_void, newlen: usize) c_int;
+pub extern "c" fn sysctlnametomib(name: [*]const u8, mibp: ?*c_int, sizep: ?*usize) c_int;
+pub extern "c" fn bind(socket: fd_t, address: ?*const sockaddr, address_len: socklen_t) c_int;
+pub extern "c" fn socket(domain: c_uint, sock_type: c_uint, protocol: c_uint) c_int;
+pub extern "c" fn listen(sockfd: fd_t, backlog: c_uint) c_int;
+pub extern "c" fn getsockname(sockfd: fd_t, noalias addr: *sockaddr, noalias addrlen: *socklen_t) c_int;
+pub extern "c" fn connect(sockfd: fd_t, sock_addr: *const sockaddr, addrlen: socklen_t) c_int;
+pub extern "c" fn accept4(sockfd: fd_t, addr: *sockaddr, addrlen: *socklen_t, flags: c_uint) c_int;
+pub extern "c" fn getsockopt(sockfd: fd_t, level: c_int, optname: c_int, optval: *c_void, optlen: *socklen_t) c_int;
+pub extern "c" fn kill(pid: pid_t, sig: c_int) c_int;
+pub extern "c" fn getdirentries(fd: fd_t, buf_ptr: [*]u8, nbytes: usize, basep: *i64) isize;
+pub extern "c" fn openat(fd: c_int, path: [*]const u8, flags: c_int) c_int;
+pub extern "c" fn setgid(ruid: c_uint, euid: c_uint) c_int;
+pub extern "c" fn setuid(uid: c_uint) c_int;
+pub extern "c" fn clock_gettime(clk_id: c_int, tp: *timespec) c_int;
+pub extern "c" fn clock_getres(clk_id: c_int, tp: *timespec) c_int;
 pub extern "c" fn aligned_alloc(alignment: usize, size: usize) ?*c_void;
 pub extern "c" fn malloc(usize) ?*c_void;
 @@ -63,11 +97,19 @@ pub extern "c" fn realloc(?*c_void, usize) ?*c_void;
 pub extern "c" fn free(*c_void) void;
 pub extern "c" fn posix_memalign(memptr: **c_void, alignment: usize, size: usize) c_int;
-pub extern "pthread" fn pthread_create(noalias newthread: *pthread_t, noalias attr: ?*const pthread_attr_t, start_routine: extern fn (?*c_void) ?*c_void, noalias arg: ?*c_void) c_int;
+pub extern "c" fn pthread_create(noalias newthread: *pthread_t, noalias attr: ?*const pthread_attr_t, start_routine: extern fn (?*c_void) ?*c_void, noalias arg: ?*c_void) c_int;
-pub extern "pthread" fn pthread_attr_init(attr: *pthread_attr_t) c_int;
+pub extern "c" fn pthread_attr_init(attr: *pthread_attr_t) c_int;
-pub extern "pthread" fn pthread_attr_setstack(attr: *pthread_attr_t, stackaddr: *c_void, stacksize: usize) c_int;
+pub extern "c" fn pthread_attr_setstack(attr: *pthread_attr_t, stackaddr: *c_void, stacksize: usize) c_int;
-pub extern "pthread" fn pthread_attr_destroy(attr: *pthread_attr_t) c_int;
+pub extern "c" fn pthread_attr_destroy(attr: *pthread_attr_t) c_int;
-pub extern "pthread" fn pthread_self() pthread_t;
+pub extern "c" fn pthread_self() pthread_t;
-pub extern "pthread" fn pthread_join(thread: pthread_t, arg_return: ?*?*c_void) c_int;
+pub extern "c" fn pthread_join(thread: pthread_t, arg_return: ?*?*c_void) c_int;
-pub const pthread_t = *@OpaqueType();
+pub extern "c" fn kqueue() c_int;
+pub extern "c" fn kevent(
+    kq: c_int,
+    changelist: [*]const Kevent,
+    nchanges: c_int,
+    eventlist: [*]Kevent,
+    nevents: c_int,
+    timeout: ?*const timespec,
+) c_int;

std/c/darwin.zig+16-177

...	@@ -1,24 +1,19 @@	...	@@ -1,24 +1,19 @@
1	const macho = @import("../macho.zig");	1	const std = @import("../std.zig");
		2	const assert = std.debug.assert;
		3	const builtin = @import("builtin");
		4	const macho = std.macho;
		5
		6	use @import("../os/bits.zig");
2		7
3	extern "c" fn __error() *c_int;	8	extern "c" fn __error() *c_int;
4	pub extern "c" fn _NSGetExecutablePath(buf: []u8, bufsize: u32) c_int;	9	pub extern "c" fn _NSGetExecutablePath(buf: []u8, bufsize: u32) c_int;
5	pub extern "c" fn _dyld_get_image_header(image_index: u32) ?*mach_header;	10	pub extern "c" fn _dyld_get_image_header(image_index: u32) ?*mach_header;
6		11
7	pub extern "c" fn __getdirentries64(fd: c_int, buf_ptr: []u8, buf_len: usize, basep: i64) usize;	12	pub extern "c" fn __getdirentries64(fd: c_int, buf_ptr: []u8, buf_len: usize, basep: i64) isize;
8		13
9	pub extern "c" fn mach_absolute_time() u64;	14	pub extern "c" fn mach_absolute_time() u64;
10	pub extern "c" fn mach_timebase_info(tinfo: ?*mach_timebase_info_data) void;	15	pub extern "c" fn mach_timebase_info(tinfo: ?*mach_timebase_info_data) void;
11		16
12	pub extern "c" fn kqueue() c_int;
13	pub extern "c" fn kevent(
14	kq: c_int,
15	changelist: [*]const Kevent,
16	nchanges: c_int,
17	eventlist: [*]Kevent,
18	nevents: c_int,
19	timeout: ?*const timespec,
20	) c_int;
21
22	pub extern "c" fn kevent64(	17	pub extern "c" fn kevent64(
23	kq: c_int,	18	kq: c_int,
24	changelist: [*]const kevent64_s,	19	changelist: [*]const kevent64_s,
...	@@ -29,13 +24,6 @@ pub extern "c" fn kevent64(	...	@@ -29,13 +24,6 @@ pub extern "c" fn kevent64(
29	timeout: ?*const timespec,	24	timeout: ?*const timespec,
30	) c_int;	25	) c_int;
31		26
32	pub extern "c" fn sysctl(name: []c_int, namelen: c_uint, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) c_int;
33	pub extern "c" fn sysctlbyname(name: []const u8, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) c_int;
34	pub extern "c" fn sysctlnametomib(name: []const u8, mibp: ?c_int, sizep: ?*usize) c_int;
35
36	pub extern "c" fn bind(socket: c_int, address: ?*const sockaddr, address_len: socklen_t) c_int;
37	pub extern "c" fn socket(domain: c_int, type: c_int, protocol: c_int) c_int;
38
39	const mach_hdr = if (@sizeOf(usize) == 8) mach_header_64 else mach_header;	27	const mach_hdr = if (@sizeOf(usize) == 8) mach_header_64 else mach_header;
40		28
41	/// The value of the link editor defined symbol _MH_EXECUTE_SYM is the address	29	/// The value of the link editor defined symbol _MH_EXECUTE_SYM is the address
...	@@ -48,170 +36,21 @@ const mach_hdr = if (@sizeOf(usize) == 8) mach_header_64 else mach_header;	...	@@ -48,170 +36,21 @@ const mach_hdr = if (@sizeOf(usize) == 8) mach_header_64 else mach_header;
48	/// export a weak symbol here, to be overridden by the real one.	36	/// export a weak symbol here, to be overridden by the real one.
49	pub extern "c" var _mh_execute_header: mach_hdr = undefined;	37	pub extern "c" var _mh_execute_header: mach_hdr = undefined;
50	comptime {	38	comptime {
51	@export("__mh_execute_header", _mh_execute_header, @import("builtin").GlobalLinkage.Weak);	39	if (std.os.darwin.is_the_target) {
		40	@export("__mh_execute_header", _mh_execute_header, .Weak);
		41	}
52	}	42	}
53		43
54	pub const mach_header_64 = macho.mach_header_64;	44	pub const mach_header_64 = macho.mach_header_64;
55	pub const mach_header = macho.mach_header;	45	pub const mach_header = macho.mach_header;
56		46
57	pub use @import("../os/darwin/errno.zig");
58
59	pub const _errno = __error;	47	pub const _errno = __error;
60		48
61	pub const in_port_t = u16;	49	pub extern "c" fn mach_host_self() mach_port_t;
62	pub const sa_family_t = u8;	50	pub extern "c" fn clock_get_time(clock_serv: clock_serv_t, cur_time: *mach_timespec_t) kern_return_t;
63	pub const socklen_t = u32;	51	pub extern "c" fn host_get_clock_service(host: host_t, clock_id: clock_id_t, clock_serv: ?[*]clock_serv_t) kern_return_t;
64	pub const sockaddr = extern union {	52	pub extern "c" fn mach_port_deallocate(task: ipc_space_t, name: mach_port_name_t) kern_return_t;
65	in: sockaddr_in,
66	in6: sockaddr_in6,
67	};
68	pub const sockaddr_in = extern struct {
69	len: u8,
70	family: sa_family_t,
71	port: in_port_t,
72	addr: u32,
73	zero: [8]u8,
74	};
75	pub const sockaddr_in6 = extern struct {
76	len: u8,
77	family: sa_family_t,
78	port: in_port_t,
79	flowinfo: u32,
80	addr: [16]u8,
81	scope_id: u32,
82	};
83
84	pub const timeval = extern struct {
85	tv_sec: c_long,
86	tv_usec: i32,
87	};
88
89	pub const timezone = extern struct {
90	tz_minuteswest: i32,
91	tz_dsttime: i32,
92	};
93
94	pub const mach_timebase_info_data = extern struct {
95	numer: u32,
96	denom: u32,
97	};
98
99	/// Renamed to Stat to not conflict with the stat function.
100	pub const Stat = extern struct {
101	dev: i32,
102	mode: u16,
103	nlink: u16,
104	ino: u64,
105	uid: u32,
106	gid: u32,
107	rdev: i32,
108	atime: usize,
109	atimensec: usize,
110	mtime: usize,
111	mtimensec: usize,
112	ctime: usize,
113	ctimensec: usize,
114	birthtime: usize,
115	birthtimensec: usize,
116	size: i64,
117	blocks: i64,
118	blksize: i32,
119	flags: u32,
120	gen: u32,
121	lspare: i32,
122	qspare: [2]i64,
123	};
124		53
125	pub const timespec = extern struct {	54	pub fn sigaddset(set: *sigset_t, signo: u5) void {
126	tv_sec: isize,	55	set.* \|= u32(1) << (signo - 1);
127	tv_nsec: isize,
128	};
129
130	pub const sigset_t = u32;
131
132	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with function name.
133	pub const Sigaction = extern struct {
134	handler: extern fn (c_int) void,
135	sa_mask: sigset_t,
136	sa_flags: c_int,
137	};
138
139	pub const dirent = extern struct {
140	d_ino: usize,
141	d_seekoff: usize,
142	d_reclen: u16,
143	d_namlen: u16,
144	d_type: u8,
145	d_name: u8, // field address is address of first byte of name
146	};
147
148	pub const pthread_attr_t = extern struct {
149	__sig: c_long,
150	__opaque: [56]u8,
151	};
152
153	/// Renamed from `kevent` to `Kevent` to avoid conflict with function name.
154	pub const Kevent = extern struct {
155	ident: usize,
156	filter: i16,
157	flags: u16,
158	fflags: u32,
159	data: isize,
160	udata: usize,
161	};
162
163	// sys/types.h on macos uses #pragma pack(4) so these checks are
164	// to make sure the struct is laid out the same. These values were
165	// produced from C code using the offsetof macro.
166	const std = @import("../std.zig");
167	const assert = std.debug.assert;
168
169	comptime {
170	assert(@byteOffsetOf(Kevent, "ident") == 0);
171	assert(@byteOffsetOf(Kevent, "filter") == 8);
172	assert(@byteOffsetOf(Kevent, "flags") == 10);
173	assert(@byteOffsetOf(Kevent, "fflags") == 12);
174	assert(@byteOffsetOf(Kevent, "data") == 16);
175	assert(@byteOffsetOf(Kevent, "udata") == 24);
176	}
177
178	pub const kevent64_s = extern struct {
179	ident: u64,
180	filter: i16,
181	flags: u16,
182	fflags: u32,
183	data: i64,
184	udata: u64,
185	ext: [2]u64,
186	};
187
188	pub const mach_port_t = c_uint;
189	pub const clock_serv_t = mach_port_t;
190	pub const clock_res_t = c_int;
191	pub const mach_port_name_t = natural_t;
192	pub const natural_t = c_uint;
193	pub const mach_timespec_t = extern struct {
194	tv_sec: c_uint,
195	tv_nsec: clock_res_t,
196	};
197	pub const kern_return_t = c_int;
198	pub const host_t = mach_port_t;
199	pub const CALENDAR_CLOCK = 1;
200
201	pub extern fn mach_host_self() mach_port_t;
202	pub extern fn clock_get_time(clock_serv: clock_serv_t, cur_time: *mach_timespec_t) kern_return_t;
203	pub extern fn host_get_clock_service(host: host_t, clock_id: clock_id_t, clock_serv: ?[*]clock_serv_t) kern_return_t;
204	pub extern fn mach_port_deallocate(task: ipc_space_t, name: mach_port_name_t) kern_return_t;
205
206	// sys/types.h on macos uses #pragma pack() so these checks are
207	// to make sure the struct is laid out the same. These values were
208	// produced from C code using the offsetof macro.
209	comptime {
210	assert(@byteOffsetOf(kevent64_s, "ident") == 0);
211	assert(@byteOffsetOf(kevent64_s, "filter") == 8);
212	assert(@byteOffsetOf(kevent64_s, "flags") == 10);
213	assert(@byteOffsetOf(kevent64_s, "fflags") == 12);
214	assert(@byteOffsetOf(kevent64_s, "data") == 16);
215	assert(@byteOffsetOf(kevent64_s, "udata") == 24);
216	assert(@byteOffsetOf(kevent64_s, "ext") == 32);
217	}	56	}

std/c/freebsd.zig-150

...	@@ -1,154 +1,4 @@	...	@@ -1,154 +1,4 @@
1	extern "c" fn __error() *c_int;	1	extern "c" fn __error() *c_int;
2	pub const _errno = __error;	2	pub const _errno = __error;
3		3
4	pub extern "c" fn kqueue() c_int;
5	pub extern "c" fn kevent(
6	kq: c_int,
7	changelist: [*]const Kevent,
8	nchanges: c_int,
9	eventlist: [*]Kevent,
10	nevents: c_int,
11	timeout: ?*const timespec,
12	) c_int;
13	pub extern "c" fn sysctl(name: []c_int, namelen: c_uint, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) c_int;
14	pub extern "c" fn sysctlbyname(name: []const u8, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) c_int;
15	pub extern "c" fn sysctlnametomib(name: []const u8, mibp: ?c_int, sizep: ?*usize) c_int;
16	pub extern "c" fn getdirentries(fd: c_int, buf_ptr: []u8, nbytes: usize, basep: i64) usize;
17	pub extern "c" fn getdents(fd: c_int, buf_ptr: [*]u8, nbytes: usize) usize;	4	pub extern "c" fn getdents(fd: c_int, buf_ptr: [*]u8, nbytes: usize) usize;
18	pub extern "c" fn pipe2(arg0: *[2]c_int, arg1: u32) c_int;
19	pub extern "c" fn preadv(fd: c_int, iov: *const c_void, iovcnt: c_int, offset: usize) isize;
20	pub extern "c" fn pwritev(fd: c_int, iov: *const c_void, iovcnt: c_int, offset: usize) isize;
21	pub extern "c" fn openat(fd: c_int, path: ?[*]const u8, flags: c_int) c_int;
22	pub extern "c" fn setgid(ruid: c_uint, euid: c_uint) c_int;
23	pub extern "c" fn setuid(uid: c_uint) c_int;
24	pub extern "c" fn kill(pid: c_int, sig: c_int) c_int;
25	pub extern "c" fn clock_gettime(clk_id: c_int, tp: *timespec) c_int;
26	pub extern "c" fn clock_getres(clk_id: c_int, tp: *timespec) c_int;
27
28	/// Renamed from `kevent` to `Kevent` to avoid conflict with function name.
29	pub const Kevent = extern struct {
30	ident: usize,
31	filter: i16,
32	flags: u16,
33	fflags: u32,
34	data: i64,
35	udata: usize,
36	// TODO ext
37	};
38
39	pub const pthread_attr_t = extern struct {
40	__size: [56]u8,
41	__align: c_long,
42	};
43
44	pub const msghdr = extern struct {
45	/// optional address
46	msg_name: ?*sockaddr,
47
48	/// size of address
49	msg_namelen: socklen_t,
50
51	/// scatter/gather array
52	msg_iov: [*]iovec,
53
54	/// # elements in msg_iov
55	msg_iovlen: i32,
56
57	/// ancillary data
58	msg_control: ?*c_void,
59
60	/// ancillary data buffer len
61	msg_controllen: socklen_t,
62
63	/// flags on received message
64	msg_flags: i32,
65	};
66
67	pub const msghdr_const = extern struct {
68	/// optional address
69	msg_name: ?*const sockaddr,
70
71	/// size of address
72	msg_namelen: socklen_t,
73
74	/// scatter/gather array
75	msg_iov: [*]iovec_const,
76
77	/// # elements in msg_iov
78	msg_iovlen: i32,
79
80	/// ancillary data
81	msg_control: ?*c_void,
82
83	/// ancillary data buffer len
84	msg_controllen: socklen_t,
85
86	/// flags on received message
87	msg_flags: i32,
88	};
89
90	pub const Stat = extern struct {
91	dev: u64,
92	ino: u64,
93	nlink: usize,
94
95	mode: u16,
96	__pad0: u16,
97	uid: u32,
98	gid: u32,
99	__pad1: u32,
100	rdev: u64,
101
102	atim: timespec,
103	mtim: timespec,
104	ctim: timespec,
105	birthtim: timespec,
106
107	size: i64,
108	blocks: i64,
109	blksize: isize,
110	flags: u32,
111	gen: u64,
112	__spare: [10]u64,
113	};
114
115	pub const timespec = extern struct {
116	tv_sec: isize,
117	tv_nsec: isize,
118	};
119
120	pub const dirent = extern struct {
121	d_fileno: usize,
122	d_off: i64,
123	d_reclen: u16,
124	d_type: u8,
125	d_pad0: u8,
126	d_namlen: u16,
127	d_pad1: u16,
128	d_name: [256]u8,
129	};
130
131	pub const in_port_t = u16;
132	pub const sa_family_t = u16;
133
134	pub const sockaddr = extern union {
135	in: sockaddr_in,
136	in6: sockaddr_in6,
137	};
138
139	pub const sockaddr_in = extern struct {
140	len: u8,
141	family: sa_family_t,
142	port: in_port_t,
143	addr: [16]u8,
144	zero: [8]u8,
145	};
146
147	pub const sockaddr_in6 = extern struct {
148	len: u8,
149	family: sa_family_t,
150	port: in_port_t,
151	flowinfo: u32,
152	addr: [16]u8,
153	scope_id: u32,
154	};

std/c/linux.zig+20-10

 @@ -1,17 +1,27 @@
-const linux = @import("../os/linux.zig");
+const std = @import("../std.zig");
-pub use @import("../os/linux/errno.zig");
+use std.c;
-pub extern "c" fn getrandom(buf_ptr: [*]u8, buf_len: usize, flags: c_uint) c_int;
 extern "c" fn __errno_location() *c_int;
 pub const _errno = __errno_location;
-pub const pthread_attr_t = extern struct {
+pub extern "c" fn getrandom(buf_ptr: [*]u8, buf_len: usize, flags: c_uint) c_int;
-    __size: [56]u8,
+pub extern "c" fn sched_getaffinity(pid: c_int, size: usize, set: *cpu_set_t) c_int;
-    __align: c_long,
+pub extern "c" fn eventfd(initval: c_uint, flags: c_uint) c_int;
-};
+pub extern "c" fn epoll_ctl(epfd: fd_t, op: c_uint, fd: fd_t, event: *epoll_event) c_int;
+pub extern "c" fn epoll_create1(flags: c_uint) c_int;
+pub extern "c" fn epoll_wait(epfd: fd_t, events: [*]epoll_event, maxevents: c_uint, timeout: c_int) c_int;
+pub extern "c" fn epoll_pwait(
+    epfd: fd_t,
+    events: [*]epoll_event,
+    maxevents: c_int,
+    timeout: c_int,
+    sigmask: *const sigset_t,
+) c_int;
+pub extern "c" fn inotify_init1(flags: c_uint) c_int;
+pub extern "c" fn inotify_add_watch(fd: fd_t, pathname: [*]const u8, mask: u32) c_int;
 /// See std.elf for constants for this
-pub extern fn getauxval(__type: c_ulong) c_ulong;
+pub extern "c" fn getauxval(__type: c_ulong) c_ulong;
-pub const dl_iterate_phdr_callback = extern fn (info: *linux.dl_phdr_info, size: usize, data: ?*c_void) c_int;
+pub const dl_iterate_phdr_callback = extern fn (info: *dl_phdr_info, size: usize, data: ?*c_void) c_int;
-pub extern fn dl_iterate_phdr(callback: dl_iterate_phdr_callback, data: ?*c_void) c_int;
+pub extern "c" fn dl_iterate_phdr(callback: dl_iterate_phdr_callback, data: ?*c_void) c_int;

std/c/netbsd.zig-146

...	@@ -1,150 +1,4 @@	...	@@ -1,150 +1,4 @@
1	extern "c" fn __errno() *c_int;	1	extern "c" fn __errno() *c_int;
2	pub const _errno = __errno;	2	pub const _errno = __errno;
3		3
4	pub extern "c" fn kqueue() c_int;
5	pub extern "c" fn kevent(
6	kq: c_int,
7	changelist: [*]const Kevent,
8	nchanges: c_int,
9	eventlist: [*]Kevent,
10	nevents: c_int,
11	timeout: ?*const timespec,
12	) c_int;
13	pub extern "c" fn sysctl(name: []c_int, namelen: c_uint, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) c_int;
14	pub extern "c" fn sysctlbyname(name: []const u8, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) c_int;
15	pub extern "c" fn sysctlnametomib(name: []const u8, mibp: ?c_int, sizep: ?*usize) c_int;
16	pub extern "c" fn getdirentries(fd: c_int, buf_ptr: []u8, nbytes: usize, basep: i64) usize;
17	pub extern "c" fn getdents(fd: c_int, buf_ptr: [*]u8, nbytes: usize) usize;	4	pub extern "c" fn getdents(fd: c_int, buf_ptr: [*]u8, nbytes: usize) usize;
18	pub extern "c" fn pipe2(arg0: *[2]c_int, arg1: u32) c_int;
19	pub extern "c" fn preadv(fd: c_int, iov: *const c_void, iovcnt: c_int, offset: usize) isize;
20	pub extern "c" fn pwritev(fd: c_int, iov: *const c_void, iovcnt: c_int, offset: usize) isize;
21	pub extern "c" fn openat(fd: c_int, path: ?[*]const u8, flags: c_int) c_int;
22	pub extern "c" fn setgid(ruid: c_uint, euid: c_uint) c_int;
23	pub extern "c" fn setuid(uid: c_uint) c_int;
24	pub extern "c" fn kill(pid: c_int, sig: c_int) c_int;
25	pub extern "c" fn clock_gettime(clk_id: c_int, tp: *timespec) c_int;
26	pub extern "c" fn clock_getres(clk_id: c_int, tp: *timespec) c_int;
27
28	/// Renamed from `kevent` to `Kevent` to avoid conflict with function name.
29	pub const Kevent = extern struct {
30	ident: usize,
31	filter: i32,
32	flags: u32,
33	fflags: u32,
34	data: i64,
35	udata: usize,
36	};
37
38	pub const pthread_attr_t = extern struct {
39	pta_magic: u32,
40	pta_flags: c_int,
41	pta_private: *c_void,
42	};
43
44	pub const msghdr = extern struct {
45	/// optional address
46	msg_name: ?*sockaddr,
47
48	/// size of address
49	msg_namelen: socklen_t,
50
51	/// scatter/gather array
52	msg_iov: [*]iovec,
53
54	/// # elements in msg_iov
55	msg_iovlen: i32,
56
57	/// ancillary data
58	msg_control: ?*c_void,
59
60	/// ancillary data buffer len
61	msg_controllen: socklen_t,
62
63	/// flags on received message
64	msg_flags: i32,
65	};
66
67	pub const msghdr_const = extern struct {
68	/// optional address
69	msg_name: ?*const sockaddr,
70
71	/// size of address
72	msg_namelen: socklen_t,
73
74	/// scatter/gather array
75	msg_iov: [*]iovec_const,
76
77	/// # elements in msg_iov
78	msg_iovlen: i32,
79
80	/// ancillary data
81	msg_control: ?*c_void,
82
83	/// ancillary data buffer len
84	msg_controllen: socklen_t,
85
86	/// flags on received message
87	msg_flags: i32,
88	};
89
90	pub const Stat = extern struct {
91	dev: u64,
92	mode: u32,
93	ino: u64,
94	nlink: usize,
95
96	uid: u32,
97	gid: u32,
98	rdev: u64,
99
100	atim: timespec,
101	mtim: timespec,
102	ctim: timespec,
103	birthtim: timespec,
104
105	size: i64,
106	blocks: i64,
107	blksize: isize,
108	flags: u32,
109	gen: u32,
110	__spare: [2]u32,
111	};
112
113	pub const timespec = extern struct {
114	tv_sec: i64,
115	tv_nsec: isize,
116	};
117
118	pub const dirent = extern struct {
119	d_fileno: u64,
120	d_reclen: u16,
121	d_namlen: u16,
122	d_type: u8,
123	d_off: i64,
124	d_name: [512]u8,
125	};
126
127	pub const in_port_t = u16;
128	pub const sa_family_t = u8;
129
130	pub const sockaddr = extern union {
131	in: sockaddr_in,
132	in6: sockaddr_in6,
133	};
134
135	pub const sockaddr_in = extern struct {
136	len: u8,
137	family: sa_family_t,
138	port: in_port_t,
139	addr: u32,
140	zero: [8]u8,
141	};
142
143	pub const sockaddr_in6 = extern struct {
144	len: u8,
145	family: sa_family_t,
146	port: in_port_t,
147	flowinfo: u32,
148	addr: [16]u8,
149	scope_id: u32,
150	};

std/child_process.zig created+763

...	@@ -0,0 +1,763 @@
1	const std = @import("std.zig");
2	const cstr = std.cstr;
3	const unicode = std.unicode;
4	const io = std.io;
5	const fs = std.fs;
6	const os = std.os;
7	const process = std.process;
8	const File = std.fs.File;
9	const windows = os.windows;
10	const mem = std.mem;
11	const debug = std.debug;
12	const BufMap = std.BufMap;
13	const Buffer = std.Buffer;
14	const builtin = @import("builtin");
15	const Os = builtin.Os;
16	const LinkedList = std.LinkedList;
17	const maxInt = std.math.maxInt;
18
19	pub const ChildProcess = struct {
20	pub pid: if (os.windows.is_the_target) void else i32,
21	pub handle: if (os.windows.is_the_target) windows.HANDLE else void,
22	pub thread_handle: if (os.windows.is_the_target) windows.HANDLE else void,
23
24	pub allocator: *mem.Allocator,
25
26	pub stdin: ?File,
27	pub stdout: ?File,
28	pub stderr: ?File,
29
30	pub term: ?(SpawnError!Term),
31
32	pub argv: []const []const u8,
33
34	/// Leave as null to use the current env map using the supplied allocator.
35	pub env_map: ?*const BufMap,
36
37	pub stdin_behavior: StdIo,
38	pub stdout_behavior: StdIo,
39	pub stderr_behavior: StdIo,
40
41	/// Set to change the user id when spawning the child process.
42	pub uid: if (os.windows.is_the_target) void else ?u32,
43
44	/// Set to change the group id when spawning the child process.
45	pub gid: if (os.windows.is_the_target) void else ?u32,
46
47	/// Set to change the current working directory when spawning the child process.
48	pub cwd: ?[]const u8,
49
50	err_pipe: if (os.windows.is_the_target) void else [2]os.fd_t,
51	llnode: if (os.windows.is_the_target) void else LinkedList(*ChildProcess).Node,
52
53	pub const SpawnError = error{OutOfMemory} \|\| os.ExecveError \|\| os.SetIdError \|\|
54	os.ChangeCurDirError \|\| windows.CreateProcessError;
55
56	pub const Term = union(enum) {
57	Exited: u32,
58	Signal: u32,
59	Stopped: u32,
60	Unknown: u32,
61	};
62
63	pub const StdIo = enum {
64	Inherit,
65	Ignore,
66	Pipe,
67	Close,
68	};
69
70	/// First argument in argv is the executable.
71	/// On success must call deinit.
72	pub fn init(argv: []const []const u8, allocator: mem.Allocator) !ChildProcess {
73	const child = try allocator.create(ChildProcess);
74	child.* = ChildProcess{
75	.allocator = allocator,
76	.argv = argv,
77	.pid = undefined,
78	.handle = undefined,
79	.thread_handle = undefined,
80	.err_pipe = undefined,
81	.llnode = undefined,
82	.term = null,
83	.env_map = null,
84	.cwd = null,
85	.uid = if (os.windows.is_the_target) {} else null,
86	.gid = if (os.windows.is_the_target) {} else null,
87	.stdin = null,
88	.stdout = null,
89	.stderr = null,
90	.stdin_behavior = StdIo.Inherit,
91	.stdout_behavior = StdIo.Inherit,
92	.stderr_behavior = StdIo.Inherit,
93	};
94	errdefer allocator.destroy(child);
95	return child;
96	}
97
98	pub fn setUserName(self: *ChildProcess, name: []const u8) !void {
99	const user_info = try os.getUserInfo(name);
100	self.uid = user_info.uid;
101	self.gid = user_info.gid;
102	}
103
104	/// On success must call `kill` or `wait`.
105	pub fn spawn(self: *ChildProcess) !void {
106	if (os.windows.is_the_target) {
107	return self.spawnWindows();
108	} else {
109	return self.spawnPosix();
110	}
111	}
112
113	pub fn spawnAndWait(self: *ChildProcess) !Term {
114	try self.spawn();
115	return self.wait();
116	}
117
118	/// Forcibly terminates child process and then cleans up all resources.
119	pub fn kill(self: *ChildProcess) !Term {
120	if (os.windows.is_the_target) {
121	return self.killWindows(1);
122	} else {
123	return self.killPosix();
124	}
125	}
126
127	pub fn killWindows(self: *ChildProcess, exit_code: windows.UINT) !Term {
128	if (self.term) \|term\| {
129	self.cleanupStreams();
130	return term;
131	}
132
133	try windows.TerminateProcess(self.handle, exit_code);
134	try self.waitUnwrappedWindows();
135	return self.term.?;
136	}
137
138	pub fn killPosix(self: *ChildProcess) !Term {
139	if (self.term) \|term\| {
140	self.cleanupStreams();
141	return term;
142	}
143	try os.kill(self.pid, os.SIGTERM);
144	self.waitUnwrapped();
145	return self.term.?;
146	}
147
148	/// Blocks until child process terminates and then cleans up all resources.
149	pub fn wait(self: *ChildProcess) !Term {
150	if (os.windows.is_the_target) {
151	return self.waitWindows();
152	} else {
153	return self.waitPosix();
154	}
155	}
156
157	pub const ExecResult = struct {
158	term: Term,
159	stdout: []u8,
160	stderr: []u8,
161	};
162
163	/// Spawns a child process, waits for it, collecting stdout and stderr, and then returns.
164	/// If it succeeds, the caller owns result.stdout and result.stderr memory.
165	pub fn exec(allocator: mem.Allocator, argv: []const []const u8, cwd: ?[]const u8, env_map: ?const BufMap, max_output_size: usize) !ExecResult {
166	const child = try ChildProcess.init(argv, allocator);
167	defer child.deinit();
168
169	child.stdin_behavior = ChildProcess.StdIo.Ignore;
170	child.stdout_behavior = ChildProcess.StdIo.Pipe;
171	child.stderr_behavior = ChildProcess.StdIo.Pipe;
172	child.cwd = cwd;
173	child.env_map = env_map;
174
175	try child.spawn();
176
177	var stdout = Buffer.initNull(allocator);
178	var stderr = Buffer.initNull(allocator);
179	defer Buffer.deinit(&stdout);
180	defer Buffer.deinit(&stderr);
181
182	var stdout_file_in_stream = child.stdout.?.inStream();
183	var stderr_file_in_stream = child.stderr.?.inStream();
184
185	try stdout_file_in_stream.stream.readAllBuffer(&stdout, max_output_size);
186	try stderr_file_in_stream.stream.readAllBuffer(&stderr, max_output_size);
187
188	return ExecResult{
189	.term = try child.wait(),
190	.stdout = stdout.toOwnedSlice(),
191	.stderr = stderr.toOwnedSlice(),
192	};
193	}
194
195	fn waitWindows(self: *ChildProcess) !Term {
196	if (self.term) \|term\| {
197	self.cleanupStreams();
198	return term;
199	}
200
201	try self.waitUnwrappedWindows();
202	return self.term.?;
203	}
204
205	fn waitPosix(self: *ChildProcess) !Term {
206	if (self.term) \|term\| {
207	self.cleanupStreams();
208	return term;
209	}
210
211	self.waitUnwrapped();
212	return self.term.?;
213	}
214
215	pub fn deinit(self: *ChildProcess) void {
216	self.allocator.destroy(self);
217	}
218
219	fn waitUnwrappedWindows(self: *ChildProcess) !void {
220	const result = windows.WaitForSingleObject(self.handle, windows.INFINITE);
221
222	self.term = (SpawnError!Term)(x: {
223	var exit_code: windows.DWORD = undefined;
224	if (windows.kernel32.GetExitCodeProcess(self.handle, &exit_code) == 0) {
225	break :x Term{ .Unknown = 0 };
226	} else {
227	break :x Term{ .Exited = exit_code };
228	}
229	});
230
231	os.close(self.handle);
232	os.close(self.thread_handle);
233	self.cleanupStreams();
234	return result;
235	}
236
237	fn waitUnwrapped(self: *ChildProcess) void {
238	const status = os.waitpid(self.pid, 0);
239	self.cleanupStreams();
240	self.handleWaitResult(status);
241	}
242
243	fn handleWaitResult(self: *ChildProcess, status: u32) void {
244	self.term = self.cleanupAfterWait(status);
245	}
246
247	fn cleanupStreams(self: *ChildProcess) void {
248	if (self.stdin) \|*stdin\| {
249	stdin.close();
250	self.stdin = null;
251	}
252	if (self.stdout) \|*stdout\| {
253	stdout.close();
254	self.stdout = null;
255	}
256	if (self.stderr) \|*stderr\| {
257	stderr.close();
258	self.stderr = null;
259	}
260	}
261
262	fn cleanupAfterWait(self: *ChildProcess, status: u32) !Term {
263	defer {
264	os.close(self.err_pipe[0]);
265	os.close(self.err_pipe[1]);
266	}
267
268	// Write maxInt(ErrInt) to the write end of the err_pipe. This is after
269	// waitpid, so this write is guaranteed to be after the child
270	// pid potentially wrote an error. This way we can do a blocking
271	// read on the error pipe and either get maxInt(ErrInt) (no error) or
272	// an error code.
273	try writeIntFd(self.err_pipe[1], maxInt(ErrInt));
274	const err_int = try readIntFd(self.err_pipe[0]);
275	// Here we potentially return the fork child's error
276	// from the parent pid.
277	if (err_int != maxInt(ErrInt)) {
278	return @errSetCast(SpawnError, @intToError(err_int));
279	}
280
281	return statusToTerm(status);
282	}
283
284	fn statusToTerm(status: u32) Term {
285	return if (os.WIFEXITED(status))
286	Term{ .Exited = os.WEXITSTATUS(status) }
287	else if (os.WIFSIGNALED(status))
288	Term{ .Signal = os.WTERMSIG(status) }
289	else if (os.WIFSTOPPED(status))
290	Term{ .Stopped = os.WSTOPSIG(status) }
291	else
292	Term{ .Unknown = status };
293	}
294
295	fn spawnPosix(self: *ChildProcess) !void {
296	const stdin_pipe = if (self.stdin_behavior == StdIo.Pipe) try os.pipe() else undefined;
297	errdefer if (self.stdin_behavior == StdIo.Pipe) {
298	destroyPipe(stdin_pipe);
299	};
300
301	const stdout_pipe = if (self.stdout_behavior == StdIo.Pipe) try os.pipe() else undefined;
302	errdefer if (self.stdout_behavior == StdIo.Pipe) {
303	destroyPipe(stdout_pipe);
304	};
305
306	const stderr_pipe = if (self.stderr_behavior == StdIo.Pipe) try os.pipe() else undefined;
307	errdefer if (self.stderr_behavior == StdIo.Pipe) {
308	destroyPipe(stderr_pipe);
309	};
310
311	const any_ignore = (self.stdin_behavior == StdIo.Ignore or self.stdout_behavior == StdIo.Ignore or self.stderr_behavior == StdIo.Ignore);
312	const dev_null_fd = if (any_ignore) try os.openC(c"/dev/null", os.O_RDWR, 0) else undefined;
313	defer {
314	if (any_ignore) os.close(dev_null_fd);
315	}
316
317	var env_map_owned: BufMap = undefined;
318	var we_own_env_map: bool = undefined;
319	const env_map = if (self.env_map) \|env_map\| x: {
320	we_own_env_map = false;
321	break :x env_map;
322	} else x: {
323	we_own_env_map = true;
324	env_map_owned = try process.getEnvMap(self.allocator);
325	break :x &env_map_owned;
326	};
327	defer {
328	if (we_own_env_map) env_map_owned.deinit();
329	}
330
331	// This pipe is used to communicate errors between the time of fork
332	// and execve from the child process to the parent process.
333	const err_pipe = try os.pipe();
334	errdefer destroyPipe(err_pipe);
335
336	const pid_result = try os.fork();
337	if (pid_result == 0) {
338	// we are the child
339	setUpChildIo(self.stdin_behavior, stdin_pipe[0], os.STDIN_FILENO, dev_null_fd) catch \|err\| forkChildErrReport(err_pipe[1], err);
340	setUpChildIo(self.stdout_behavior, stdout_pipe[1], os.STDOUT_FILENO, dev_null_fd) catch \|err\| forkChildErrReport(err_pipe[1], err);
341	setUpChildIo(self.stderr_behavior, stderr_pipe[1], os.STDERR_FILENO, dev_null_fd) catch \|err\| forkChildErrReport(err_pipe[1], err);
342
343	if (self.stdin_behavior == .Pipe) {
344	os.close(stdin_pipe[0]);
345	os.close(stdin_pipe[1]);
346	}
347	if (self.stdout_behavior == .Pipe) {
348	os.close(stdout_pipe[0]);
349	os.close(stdout_pipe[1]);
350	}
351	if (self.stderr_behavior == .Pipe) {
352	os.close(stderr_pipe[0]);
353	os.close(stderr_pipe[1]);
354	}
355
356	if (self.cwd) \|cwd\| {
357	os.chdir(cwd) catch \|err\| forkChildErrReport(err_pipe[1], err);
358	}
359
360	if (self.gid) \|gid\| {
361	os.setregid(gid, gid) catch \|err\| forkChildErrReport(err_pipe[1], err);
362	}
363
364	if (self.uid) \|uid\| {
365	os.setreuid(uid, uid) catch \|err\| forkChildErrReport(err_pipe[1], err);
366	}
367
368	os.execve(self.allocator, self.argv, env_map) catch \|err\| forkChildErrReport(err_pipe[1], err);
369	}
370
371	// we are the parent
372	const pid = @intCast(i32, pid_result);
373	if (self.stdin_behavior == StdIo.Pipe) {
374	self.stdin = File.openHandle(stdin_pipe[1]);
375	} else {
376	self.stdin = null;
377	}
378	if (self.stdout_behavior == StdIo.Pipe) {
379	self.stdout = File.openHandle(stdout_pipe[0]);
380	} else {
381	self.stdout = null;
382	}
383	if (self.stderr_behavior == StdIo.Pipe) {
384	self.stderr = File.openHandle(stderr_pipe[0]);
385	} else {
386	self.stderr = null;
387	}
388
389	self.pid = pid;
390	self.err_pipe = err_pipe;
391	self.llnode = LinkedList(*ChildProcess).Node.init(self);
392	self.term = null;
393
394	if (self.stdin_behavior == StdIo.Pipe) {
395	os.close(stdin_pipe[0]);
396	}
397	if (self.stdout_behavior == StdIo.Pipe) {
398	os.close(stdout_pipe[1]);
399	}
400	if (self.stderr_behavior == StdIo.Pipe) {
401	os.close(stderr_pipe[1]);
402	}
403	}
404
405	fn spawnWindows(self: *ChildProcess) !void {
406	const saAttr = windows.SECURITY_ATTRIBUTES{
407	.nLength = @sizeOf(windows.SECURITY_ATTRIBUTES),
408	.bInheritHandle = windows.TRUE,
409	.lpSecurityDescriptor = null,
410	};
411
412	const any_ignore = (self.stdin_behavior == StdIo.Ignore or self.stdout_behavior == StdIo.Ignore or self.stderr_behavior == StdIo.Ignore);
413
414	const nul_handle = if (any_ignore) blk: {
415	break :blk try windows.CreateFile("NUL", windows.GENERIC_READ, windows.FILE_SHARE_READ, null, windows.OPEN_EXISTING, windows.FILE_ATTRIBUTE_NORMAL, null);
416	} else blk: {
417	break :blk undefined;
418	};
419	defer {
420	if (any_ignore) os.close(nul_handle);
421	}
422	if (any_ignore) {
423	try windows.SetHandleInformation(nul_handle, windows.HANDLE_FLAG_INHERIT, 0);
424	}
425
426	var g_hChildStd_IN_Rd: ?windows.HANDLE = null;
427	var g_hChildStd_IN_Wr: ?windows.HANDLE = null;
428	switch (self.stdin_behavior) {
429	StdIo.Pipe => {
430	try windowsMakePipeIn(&g_hChildStd_IN_Rd, &g_hChildStd_IN_Wr, &saAttr);
431	},
432	StdIo.Ignore => {
433	g_hChildStd_IN_Rd = nul_handle;
434	},
435	StdIo.Inherit => {
436	g_hChildStd_IN_Rd = windows.GetStdHandle(windows.STD_INPUT_HANDLE) catch null;
437	},
438	StdIo.Close => {
439	g_hChildStd_IN_Rd = null;
440	},
441	}
442	errdefer if (self.stdin_behavior == StdIo.Pipe) {
443	windowsDestroyPipe(g_hChildStd_IN_Rd, g_hChildStd_IN_Wr);
444	};
445
446	var g_hChildStd_OUT_Rd: ?windows.HANDLE = null;
447	var g_hChildStd_OUT_Wr: ?windows.HANDLE = null;
448	switch (self.stdout_behavior) {
449	StdIo.Pipe => {
450	try windowsMakePipeOut(&g_hChildStd_OUT_Rd, &g_hChildStd_OUT_Wr, &saAttr);
451	},
452	StdIo.Ignore => {
453	g_hChildStd_OUT_Wr = nul_handle;
454	},
455	StdIo.Inherit => {
456	g_hChildStd_OUT_Wr = windows.GetStdHandle(windows.STD_OUTPUT_HANDLE) catch null;
457	},
458	StdIo.Close => {
459	g_hChildStd_OUT_Wr = null;
460	},
461	}
462	errdefer if (self.stdin_behavior == StdIo.Pipe) {
463	windowsDestroyPipe(g_hChildStd_OUT_Rd, g_hChildStd_OUT_Wr);
464	};
465
466	var g_hChildStd_ERR_Rd: ?windows.HANDLE = null;
467	var g_hChildStd_ERR_Wr: ?windows.HANDLE = null;
468	switch (self.stderr_behavior) {
469	StdIo.Pipe => {
470	try windowsMakePipeOut(&g_hChildStd_ERR_Rd, &g_hChildStd_ERR_Wr, &saAttr);
471	},
472	StdIo.Ignore => {
473	g_hChildStd_ERR_Wr = nul_handle;
474	},
475	StdIo.Inherit => {
476	g_hChildStd_ERR_Wr = windows.GetStdHandle(windows.STD_ERROR_HANDLE) catch null;
477	},
478	StdIo.Close => {
479	g_hChildStd_ERR_Wr = null;
480	},
481	}
482	errdefer if (self.stdin_behavior == StdIo.Pipe) {
483	windowsDestroyPipe(g_hChildStd_ERR_Rd, g_hChildStd_ERR_Wr);
484	};
485
486	const cmd_line = try windowsCreateCommandLine(self.allocator, self.argv);
487	defer self.allocator.free(cmd_line);
488
489	var siStartInfo = windows.STARTUPINFOW{
490	.cb = @sizeOf(windows.STARTUPINFOW),
491	.hStdError = g_hChildStd_ERR_Wr,
492	.hStdOutput = g_hChildStd_OUT_Wr,
493	.hStdInput = g_hChildStd_IN_Rd,
494	.dwFlags = windows.STARTF_USESTDHANDLES,
495
496	.lpReserved = null,
497	.lpDesktop = null,
498	.lpTitle = null,
499	.dwX = 0,
500	.dwY = 0,
501	.dwXSize = 0,
502	.dwYSize = 0,
503	.dwXCountChars = 0,
504	.dwYCountChars = 0,
505	.dwFillAttribute = 0,
506	.wShowWindow = 0,
507	.cbReserved2 = 0,
508	.lpReserved2 = null,
509	};
510	var piProcInfo: windows.PROCESS_INFORMATION = undefined;
511
512	const cwd_slice = if (self.cwd) \|cwd\| try cstr.addNullByte(self.allocator, cwd) else null;
513	defer if (cwd_slice) \|cwd\| self.allocator.free(cwd);
514	const cwd_w = if (cwd_slice) \|cwd\| try unicode.utf8ToUtf16LeWithNull(self.allocator, cwd) else null;
515	defer if (cwd_w) \|cwd\| self.allocator.free(cwd);
516	const cwd_w_ptr = if (cwd_w) \|cwd\| cwd.ptr else null;
517
518	const maybe_envp_buf = if (self.env_map) \|env_map\| try createWindowsEnvBlock(self.allocator, env_map) else null;
519	defer if (maybe_envp_buf) \|envp_buf\| self.allocator.free(envp_buf);
520	const envp_ptr = if (maybe_envp_buf) \|envp_buf\| envp_buf.ptr else null;
521
522	// the cwd set in ChildProcess is in effect when choosing the executable path
523	// to match posix semantics
524	const app_name = x: {
525	if (self.cwd) \|cwd\| {
526	const resolved = try fs.path.resolve(self.allocator, [][]const u8{ cwd, self.argv[0] });
527	defer self.allocator.free(resolved);
528	break :x try cstr.addNullByte(self.allocator, resolved);
529	} else {
530	break :x try cstr.addNullByte(self.allocator, self.argv[0]);
531	}
532	};
533	defer self.allocator.free(app_name);
534
535	const app_name_w = try unicode.utf8ToUtf16LeWithNull(self.allocator, app_name);
536	defer self.allocator.free(app_name_w);
537
538	const cmd_line_w = try unicode.utf8ToUtf16LeWithNull(self.allocator, cmd_line);
539	defer self.allocator.free(cmd_line_w);
540
541	windowsCreateProcess(app_name_w.ptr, cmd_line_w.ptr, envp_ptr, cwd_w_ptr, &siStartInfo, &piProcInfo) catch \|no_path_err\| {
542	if (no_path_err != error.FileNotFound) return no_path_err;
543
544	const PATH = try process.getEnvVarOwned(self.allocator, "PATH");
545	defer self.allocator.free(PATH);
546
547	var it = mem.tokenize(PATH, ";");
548	while (it.next()) \|search_path\| {
549	const joined_path = try fs.path.join(self.allocator, [][]const u8{ search_path, app_name });
550	defer self.allocator.free(joined_path);
551
552	const joined_path_w = try unicode.utf8ToUtf16LeWithNull(self.allocator, joined_path);
553	defer self.allocator.free(joined_path_w);
554
555	if (windowsCreateProcess(joined_path_w.ptr, cmd_line_w.ptr, envp_ptr, cwd_w_ptr, &siStartInfo, &piProcInfo)) \|_\| {
556	break;
557	} else \|err\| if (err == error.FileNotFound) {
558	continue;
559	} else {
560	return err;
561	}
562	} else {
563	// Every other error would have been returned earlier.
564	return error.FileNotFound;
565	}
566	};
567
568	if (g_hChildStd_IN_Wr) \|h\| {
569	self.stdin = File.openHandle(h);
570	} else {
571	self.stdin = null;
572	}
573	if (g_hChildStd_OUT_Rd) \|h\| {
574	self.stdout = File.openHandle(h);
575	} else {
576	self.stdout = null;
577	}
578	if (g_hChildStd_ERR_Rd) \|h\| {
579	self.stderr = File.openHandle(h);
580	} else {
581	self.stderr = null;
582	}
583
584	self.handle = piProcInfo.hProcess;
585	self.thread_handle = piProcInfo.hThread;
586	self.term = null;
587
588	if (self.stdin_behavior == StdIo.Pipe) {
589	os.close(g_hChildStd_IN_Rd.?);
590	}
591	if (self.stderr_behavior == StdIo.Pipe) {
592	os.close(g_hChildStd_ERR_Wr.?);
593	}
594	if (self.stdout_behavior == StdIo.Pipe) {
595	os.close(g_hChildStd_OUT_Wr.?);
596	}
597	}
598
599	fn setUpChildIo(stdio: StdIo, pipe_fd: i32, std_fileno: i32, dev_null_fd: i32) !void {
600	switch (stdio) {
601	StdIo.Pipe => try os.dup2(pipe_fd, std_fileno),
602	StdIo.Close => os.close(std_fileno),
603	StdIo.Inherit => {},
604	StdIo.Ignore => try os.dup2(dev_null_fd, std_fileno),
605	}
606	}
607	};
608
609	fn windowsCreateProcess(app_name: []u16, cmd_line: []u16, envp_ptr: ?[]u16, cwd_ptr: ?[]u16, lpStartupInfo: windows.STARTUPINFOW, lpProcessInformation: windows.PROCESS_INFORMATION) !void {
610	// TODO the docs for environment pointer say:
611	// > A pointer to the environment block for the new process. If this parameter
612	// > is NULL, the new process uses the environment of the calling process.
613	// > ...
614	// > An environment block can contain either Unicode or ANSI characters. If
615	// > the environment block pointed to by lpEnvironment contains Unicode
616	// > characters, be sure that dwCreationFlags includes CREATE_UNICODE_ENVIRONMENT.
617	// > If this parameter is NULL and the environment block of the parent process
618	// > contains Unicode characters, you must also ensure that dwCreationFlags
619	// > includes CREATE_UNICODE_ENVIRONMENT.
620	// This seems to imply that we have to somehow know whether our process parent passed
621	// CREATE_UNICODE_ENVIRONMENT if we want to pass NULL for the environment parameter.
622	// Since we do not know this information that would imply that we must not pass NULL
623	// for the parameter.
624	// However this would imply that programs compiled with -DUNICODE could not pass
625	// environment variables to programs that were not, which seems unlikely.
626	// More investigation is needed.
627	return windows.CreateProcessW(
628	app_name,
629	cmd_line,
630	null,
631	null,
632	windows.TRUE,
633	windows.CREATE_UNICODE_ENVIRONMENT,
634	@ptrCast(?*c_void, envp_ptr),
635	cwd_ptr,
636	lpStartupInfo,
637	lpProcessInformation,
638	);
639	}
640
641	/// Caller must dealloc.
642	/// Guarantees a null byte at result[result.len].
643	fn windowsCreateCommandLine(allocator: *mem.Allocator, argv: []const []const u8) ![]u8 {
644	var buf = try Buffer.initSize(allocator, 0);
645	defer buf.deinit();
646
647	var buf_stream = &io.BufferOutStream.init(&buf).stream;
648
649	for (argv) \|arg, arg_i\| {
650	if (arg_i != 0) try buf.appendByte(' ');
651	if (mem.indexOfAny(u8, arg, " \t\n\"") == null) {
652	try buf.append(arg);
653	continue;
654	}
655	try buf.appendByte('"');
656	var backslash_count: usize = 0;
657	for (arg) \|byte\| {
658	switch (byte) {
659	'\\' => backslash_count += 1,
660	'"' => {
661	try buf_stream.writeByteNTimes('\\', backslash_count * 2 + 1);
662	try buf.appendByte('"');
663	backslash_count = 0;
664	},
665	else => {
666	try buf_stream.writeByteNTimes('\\', backslash_count);
667	try buf.appendByte(byte);
668	backslash_count = 0;
669	},
670	}
671	}
672	try buf_stream.writeByteNTimes('\\', backslash_count * 2);
673	try buf.appendByte('"');
674	}
675
676	return buf.toOwnedSlice();
677	}
678
679	fn windowsDestroyPipe(rd: ?windows.HANDLE, wr: ?windows.HANDLE) void {
680	if (rd) \|h\| os.close(h);
681	if (wr) \|h\| os.close(h);
682	}
683
684	fn windowsMakePipeIn(rd: ?windows.HANDLE, wr: ?windows.HANDLE, sattr: *const windows.SECURITY_ATTRIBUTES) !void {
685	var rd_h: windows.HANDLE = undefined;
686	var wr_h: windows.HANDLE = undefined;
687	try windows.CreatePipe(&rd_h, &wr_h, sattr);
688	errdefer windowsDestroyPipe(rd_h, wr_h);
689	try windows.SetHandleInformation(wr_h, windows.HANDLE_FLAG_INHERIT, 0);
690	rd.* = rd_h;
691	wr.* = wr_h;
692	}
693
694	fn windowsMakePipeOut(rd: ?windows.HANDLE, wr: ?windows.HANDLE, sattr: *const windows.SECURITY_ATTRIBUTES) !void {
695	var rd_h: windows.HANDLE = undefined;
696	var wr_h: windows.HANDLE = undefined;
697	try windows.CreatePipe(&rd_h, &wr_h, sattr);
698	errdefer windowsDestroyPipe(rd_h, wr_h);
699	try windows.SetHandleInformation(rd_h, windows.HANDLE_FLAG_INHERIT, 0);
700	rd.* = rd_h;
701	wr.* = wr_h;
702	}
703
704	fn destroyPipe(pipe: [2]os.fd_t) void {
705	os.close(pipe[0]);
706	os.close(pipe[1]);
707	}
708
709	// Child of fork calls this to report an error to the fork parent.
710	// Then the child exits.
711	fn forkChildErrReport(fd: i32, err: ChildProcess.SpawnError) noreturn {
712	writeIntFd(fd, ErrInt(@errorToInt(err))) catch {};
713	os.exit(1);
714	}
715
716	const ErrInt = @IntType(false, @sizeOf(anyerror) * 8);
717
718	fn writeIntFd(fd: i32, value: ErrInt) !void {
719	const stream = &File.openHandle(fd).outStream().stream;
720	stream.writeIntNative(ErrInt, value) catch return error.SystemResources;
721	}
722
723	fn readIntFd(fd: i32) !ErrInt {
724	const stream = &File.openHandle(fd).inStream().stream;
725	return stream.readIntNative(ErrInt) catch return error.SystemResources;
726	}
727
728	/// Caller must free result.
729	pub fn createWindowsEnvBlock(allocator: mem.Allocator, env_map: const BufMap) ![]u16 {
730	// count bytes needed
731	const max_chars_needed = x: {
732	var max_chars_needed: usize = 4; // 4 for the final 4 null bytes
733	var it = env_map.iterator();
734	while (it.next()) \|pair\| {
735	// +1 for '='
736	// +1 for null byte
737	max_chars_needed += pair.key.len + pair.value.len + 2;
738	}
739	break :x max_chars_needed;
740	};
741	const result = try allocator.alloc(u16, max_chars_needed);
742	errdefer allocator.free(result);
743
744	var it = env_map.iterator();
745	var i: usize = 0;
746	while (it.next()) \|pair\| {
747	i += try unicode.utf8ToUtf16Le(result[i..], pair.key);
748	result[i] = '=';
749	i += 1;
750	i += try unicode.utf8ToUtf16Le(result[i..], pair.value);
751	result[i] = 0;
752	i += 1;
753	}
754	result[i] = 0;
755	i += 1;
756	result[i] = 0;
757	i += 1;
758	result[i] = 0;
759	i += 1;
760	result[i] = 0;
761	i += 1;
762	return allocator.shrink(result, i);
763	}

std/coff.zig+4-3

...	@@ -3,6 +3,7 @@ const std = @import("std.zig");	...	@@ -3,6 +3,7 @@ const std = @import("std.zig");
3	const io = std.io;	3	const io = std.io;
4	const mem = std.mem;	4	const mem = std.mem;
5	const os = std.os;	5	const os = std.os;
		6	const File = std.fs.File;
6		7
7	const ArrayList = std.ArrayList;	8	const ArrayList = std.ArrayList;
8		9
...	@@ -28,7 +29,7 @@ pub const CoffError = error{	...	@@ -28,7 +29,7 @@ pub const CoffError = error{
28	};	29	};
29		30
30	pub const Coff = struct {	31	pub const Coff = struct {
31	in_file: os.File,	32	in_file: File,
32	allocator: *mem.Allocator,	33	allocator: *mem.Allocator,
33		34
34	coff_header: CoffHeader,	35	coff_header: CoffHeader,
...	@@ -77,7 +78,7 @@ pub const Coff = struct {	...	@@ -77,7 +78,7 @@ pub const Coff = struct {
77	try self.loadOptionalHeader(&file_stream);	78	try self.loadOptionalHeader(&file_stream);
78	}	79	}
79		80
80	fn loadOptionalHeader(self: Coff, file_stream: os.File.InStream) !void {	81	fn loadOptionalHeader(self: Coff, file_stream: File.InStream) !void {
81	const in = &file_stream.stream;	82	const in = &file_stream.stream;
82	self.pe_header.magic = try in.readIntLittle(u16);	83	self.pe_header.magic = try in.readIntLittle(u16);
83	// For now we're only interested in finding the reference to the .pdb,	84	// For now we're only interested in finding the reference to the .pdb,
...	@@ -91,7 +92,7 @@ pub const Coff = struct {	...	@@ -91,7 +92,7 @@ pub const Coff = struct {
91	} else	92	} else
92	return error.InvalidPEMagic;	93	return error.InvalidPEMagic;
93		94
94	try self.in_file.seekForward(skip_size);	95	try self.in_file.seekBy(skip_size);
95		96
96	const number_of_rva_and_sizes = try in.readIntLittle(u32);	97	const number_of_rva_and_sizes = try in.readIntLittle(u32);
97	if (number_of_rva_and_sizes != IMAGE_NUMBEROF_DIRECTORY_ENTRIES)	98	if (number_of_rva_and_sizes != IMAGE_NUMBEROF_DIRECTORY_ENTRIES)

std/crypto.zig+3

 @@ -32,6 +32,9 @@ pub const chaCha20With64BitNonce = import_chaCha20.chaCha20With64BitNonce;
 pub const Poly1305 = @import("crypto/poly1305.zig").Poly1305;
 pub const X25519 = @import("crypto/x25519.zig").X25519;
+const std = @import("std.zig");
+pub const randomBytes = std.os.getrandom;
 test "crypto" {
     _ = @import("crypto/blake2.zig");
     _ = @import("crypto/chacha20.zig");

std/crypto/throughput_test.zig+1-1

...	@@ -1,6 +1,6 @@	...	@@ -1,6 +1,6 @@
1	const builtin = @import("builtin");	1	const builtin = @import("builtin");
2	const std = @import("std");	2	const std = @import("std");
3	const time = std.os.time;	3	const time = std.time;
4	const Timer = time.Timer;	4	const Timer = time.Timer;
5	const crypto = @import("../crypto.zig");	5	const crypto = @import("../crypto.zig");
6		6

std/cstr.zig+1-16

 @@ -9,11 +9,6 @@ pub const line_sep = switch (builtin.os) {
     else => "\n",
 };
-/// Deprecated, use mem.len
-pub fn len(ptr: [*]const u8) usize {
-    return mem.len(u8, ptr);
-}
 pub fn cmp(a: [*]const u8, b: [*]const u8) i8 {
     var index: usize = 0;
     while (a[index] == b[index] and a[index] != 0) : (index += 1) {}
 @@ -26,16 +21,6 @@ pub fn cmp(a: [*]const u8, b: [*]const u8) i8 {
     }
 }
-/// Deprecated, use mem.toSliceConst
-pub fn toSliceConst(str: [*]const u8) []const u8 {
-    return mem.toSliceConst(u8, str);
-}
-/// Deprecated, use mem.toSlice
-pub fn toSlice(str: [*]u8) []u8 {
-    return mem.toSlice(u8, str);
-}
 test "cstr fns" {
     comptime testCStrFnsImpl();
     testCStrFnsImpl();
 @@ -43,7 +28,7 @@ test "cstr fns" {
 fn testCStrFnsImpl() void {
     testing.expect(cmp(c"aoeu", c"aoez") == -1);
-    testing.expect(len(c"123456789") == 9);
+    testing.expect(mem.len(u8, c"123456789") == 9);
 }
 /// Returns a mutable slice with 1 more byte of length which is a null byte.

std/debug.zig+103-96

 @@ -3,15 +3,18 @@ const math = std.math;
 const mem = std.mem;
 const io = std.io;
 const os = std.os;
+const fs = std.fs;
+const process = std.process;
 const elf = std.elf;
 const DW = std.dwarf;
 const macho = std.macho;
 const coff = std.coff;
 const pdb = std.pdb;
-const windows = os.windows;
 const ArrayList = std.ArrayList;
 const builtin = @import("builtin");
 const maxInt = std.math.maxInt;
+const File = std.fs.File;
+const windows = std.os.windows;
 const leb = @import("debug/leb128.zig");
 @@ -19,8 +22,8 @@ pub const FailingAllocator = @import("debug/failing_allocator.zig").FailingAlloc
 pub const failing_allocator = &FailingAllocator.init(global_allocator, 0).allocator;
 pub const runtime_safety = switch (builtin.mode) {
-    builtin.Mode.Debug, builtin.Mode.ReleaseSafe => true,
+    .Debug, .ReleaseSafe => true,
-    builtin.Mode.ReleaseFast, builtin.Mode.ReleaseSmall => false,
+    .ReleaseFast, .ReleaseSmall => false,
 };
 const Module = struct {
 @@ -36,10 +39,10 @@ const Module = struct {
 /// Tries to write to stderr, unbuffered, and ignores any error returned.
 /// Does not append a newline.
-var stderr_file: os.File = undefined;
+var stderr_file: File = undefined;
-var stderr_file_out_stream: os.File.OutStream = undefined;
+var stderr_file_out_stream: File.OutStream = undefined;
-var stderr_stream: ?*io.OutStream(os.File.WriteError) = null;
+var stderr_stream: ?*io.OutStream(File.WriteError) = null;
 var stderr_mutex = std.Mutex.init();
 pub fn warn(comptime fmt: []const u8, args: ...) void {
     const held = stderr_mutex.acquire();
 @@ -48,7 +51,7 @@ pub fn warn(comptime fmt: []const u8, args: ...) void {
     stderr.print(fmt, args) catch return;
 }
-pub fn getStderrStream() !*io.OutStream(os.File.WriteError) {
+pub fn getStderrStream() !*io.OutStream(File.WriteError) {
     if (stderr_stream) |st| {
         return st;
     } else {
 @@ -75,13 +78,17 @@ pub fn getSelfDebugInfo() !*DebugInfo {
 fn wantTtyColor() bool {
     var bytes: [128]u8 = undefined;
     const allocator = &std.heap.FixedBufferAllocator.init(bytes[0..]).allocator;
-    return if (std.os.getEnvVarOwned(allocator, "ZIG_DEBUG_COLOR")) |_| true else |_| stderr_file.isTty();
+    return if (process.getEnvVarOwned(allocator, "ZIG_DEBUG_COLOR")) |_| true else |_| stderr_file.isTty();
 }
 /// Tries to print the current stack trace to stderr, unbuffered, and ignores any error returned.
 /// TODO multithreaded awareness
 pub fn dumpCurrentStackTrace(start_addr: ?usize) void {
     const stderr = getStderrStream() catch return;
+    if (os.wasi.is_the_target) {
+        stderr.print("Unable to dump stack trace: unimplemented on WASI\n") catch return;
+        return;
+    }
     const debug_info = getSelfDebugInfo() catch |err| {
         stderr.print("Unable to dump stack trace: Unable to open debug info: {}\n", @errorName(err)) catch return;
         return;
 @@ -99,47 +106,44 @@ pub fn dumpCurrentStackTrace(start_addr: ?usize) void {
 /// chopping off the irrelevant frames and shifting so that the returned addresses pointer
 /// equals the passed in addresses pointer.
 pub fn captureStackTrace(first_address: ?usize, stack_trace: *builtin.StackTrace) void {
-    switch (builtin.os) {
+    if (windows.is_the_target) {
-        builtin.Os.windows => {
+        const addrs = stack_trace.instruction_addresses;
-            const addrs = stack_trace.instruction_addresses;
+        const u32_addrs_len = @intCast(u32, addrs.len);
-            const u32_addrs_len = @intCast(u32, addrs.len);
+        const first_addr = first_address orelse {
-            const first_addr = first_address orelse {
+            stack_trace.index = windows.ntdll.RtlCaptureStackBackTrace(
-                stack_trace.index = windows.RtlCaptureStackBackTrace(
+                0,
-                    0,
+                u32_addrs_len,
-                    u32_addrs_len,
+                @ptrCast(**c_void, addrs.ptr),
-                    @ptrCast(**c_void, addrs.ptr),
+                null,
-                    null,
+            );
-                );
+            return;
-                return;
+        };
-            };
+        var addr_buf_stack: [32]usize = undefined;
-            var addr_buf_stack: [32]usize = undefined;
+        const addr_buf = if (addr_buf_stack.len > addrs.len) addr_buf_stack[0..] else addrs;
-            const addr_buf = if (addr_buf_stack.len > addrs.len) addr_buf_stack[0..] else addrs;
+        const n = windows.ntdll.RtlCaptureStackBackTrace(0, u32_addrs_len, @ptrCast(**c_void, addr_buf.ptr), null);
-            const n = windows.RtlCaptureStackBackTrace(0, u32_addrs_len, @ptrCast(**c_void, addr_buf.ptr), null);
+        const first_index = for (addr_buf[0..n]) |addr, i| {
-            const first_index = for (addr_buf[0..n]) |addr, i| {
+            if (addr == first_addr) {
-                if (addr == first_addr) {
+                break i;
-                    break i;
+            }
-                }
+        } else {
-            } else {
+            stack_trace.index = 0;
-                stack_trace.index = 0;
+            return;
+        };
+        const slice = addr_buf[first_index..n];
+        // We use a for loop here because slice and addrs may alias.
+        for (slice) |addr, i| {
+            addrs[i] = addr;
+        }
+        stack_trace.index = slice.len;
+    } else {
+        var it = StackIterator.init(first_address);
+        for (stack_trace.instruction_addresses) |*addr, i| {
+            addr.* = it.next() orelse {
+                stack_trace.index = i;
                 return;
             };
-            const slice = addr_buf[first_index..n];
+        }
-            // We use a for loop here because slice and addrs may alias.
+        stack_trace.index = stack_trace.instruction_addresses.len;
-            for (slice) |addr, i| {
-                addrs[i] = addr;
-            }
-            stack_trace.index = slice.len;
-        },
-        else => {
-            var it = StackIterator.init(first_address);
-            for (stack_trace.instruction_addresses) |*addr, i| {
-                addr.* = it.next() orelse {
-                    stack_trace.index = i;
-                    return;
-                };
-            }
-            stack_trace.index = stack_trace.instruction_addresses.len;
-        },
     }
 }
 @@ -147,6 +151,10 @@ pub fn captureStackTrace(first_address: ?usize, stack_trace: *builtin.StackTrace
 /// TODO multithreaded awareness
 pub fn dumpStackTrace(stack_trace: builtin.StackTrace) void {
     const stderr = getStderrStream() catch return;
+    if (os.wasi.is_the_target) {
+        stderr.print("Unable to dump stack trace: unimplemented on WASI\n") catch return;
+        return;
+    }
     const debug_info = getSelfDebugInfo() catch |err| {
         stderr.print("Unable to dump stack trace: Unable to open debug info: {}\n", @errorName(err)) catch return;
         return;
 @@ -259,9 +267,8 @@ pub const StackIterator = struct {
 };
 pub fn writeCurrentStackTrace(out_stream: var, debug_info: *DebugInfo, tty_color: bool, start_addr: ?usize) !void {
-    switch (builtin.os) {
+    if (windows.is_the_target) {
-        builtin.Os.windows => return writeCurrentStackTraceWindows(out_stream, debug_info, tty_color, start_addr),
+        return writeCurrentStackTraceWindows(out_stream, debug_info, tty_color, start_addr);
-        else => {},
     }
     var it = StackIterator.init(start_addr);
     while (it.next()) |return_address| {
 @@ -276,7 +283,7 @@ pub fn writeCurrentStackTraceWindows(
     start_addr: ?usize,
 ) !void {
     var addr_buf: [1024]usize = undefined;
-    const n = windows.RtlCaptureStackBackTrace(0, addr_buf.len, @ptrCast(**c_void, &addr_buf), null);
+    const n = windows.ntdll.RtlCaptureStackBackTrace(0, addr_buf.len, @ptrCast(**c_void, &addr_buf), null);
     const addrs = addr_buf[0..n];
     var start_i: usize = if (start_addr) |saddr| blk: {
         for (addrs) |addr, i| {
 @@ -290,17 +297,18 @@ pub fn writeCurrentStackTraceWindows(
 }
 pub fn printSourceAtAddress(debug_info: *DebugInfo, out_stream: var, address: usize, tty_color: bool) !void {
-    switch (builtin.os) {
+    if (windows.is_the_target) {
-        builtin.Os.macosx => return printSourceAtAddressMacOs(debug_info, out_stream, address, tty_color),
+        return printSourceAtAddressWindows(debug_info, out_stream, address, tty_color);
-        builtin.Os.linux, builtin.Os.freebsd, builtin.Os.netbsd => return printSourceAtAddressLinux(debug_info, out_stream, address, tty_color),
-        builtin.Os.windows => return printSourceAtAddressWindows(debug_info, out_stream, address, tty_color),
-        else => return error.UnsupportedOperatingSystem,
     }
+    if (os.darwin.is_the_target) {
+        return printSourceAtAddressMacOs(debug_info, out_stream, address, tty_color);
+    }
+    return printSourceAtAddressPosix(debug_info, out_stream, address, tty_color);
 }
 fn printSourceAtAddressWindows(di: *DebugInfo, out_stream: var, relocated_address: usize, tty_color: bool) !void {
     const allocator = getDebugInfoAllocator();
-    const base_address = os.getBaseAddress();
+    const base_address = process.getBaseAddress();
     const relative_address = relocated_address - base_address;
     var coff_section: *coff.Section = undefined;
 @@ -330,7 +338,7 @@ fn printSourceAtAddressWindows(di: *DebugInfo, out_stream: var, relocated_addres
     const mod = &di.modules[mod_index];
     try populateModule(di, mod);
-    const obj_basename = os.path.basename(mod.obj_file_name);
+    const obj_basename = fs.path.basename(mod.obj_file_name);
     var symbol_i: usize = 0;
     const symbol_name = while (symbol_i != mod.symbols.len) {
 @@ -510,7 +518,7 @@ const TtyColor = enum {
 /// TODO this is a special case hack right now. clean it up and maybe make it part of std.fmt
 fn setTtyColor(tty_color: TtyColor) void {
-    if (os.supportsAnsiEscapeCodes(stderr_file.handle)) {
+    if (stderr_file.supportsAnsiEscapeCodes()) {
         switch (tty_color) {
             TtyColor.Red => {
                 stderr_file.write(RED) catch return;
 @@ -540,29 +548,29 @@ fn setTtyColor(tty_color: TtyColor) void {
             S.init_attrs = true;
             var info: windows.CONSOLE_SCREEN_BUFFER_INFO = undefined;
             // TODO handle error
-            _ = windows.GetConsoleScreenBufferInfo(stderr_file.handle, &info);
+            _ = windows.kernel32.GetConsoleScreenBufferInfo(stderr_file.handle, &info);
             S.attrs = info.wAttributes;
         }
         // TODO handle errors
         switch (tty_color) {
             TtyColor.Red => {
-                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_RED | windows.FOREGROUND_INTENSITY);
+                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_RED | windows.FOREGROUND_INTENSITY) catch {};
             },
             TtyColor.Green => {
-                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_GREEN | windows.FOREGROUND_INTENSITY);
+                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_GREEN | windows.FOREGROUND_INTENSITY) catch {};
             },
             TtyColor.Cyan => {
-                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_GREEN | windows.FOREGROUND_BLUE | windows.FOREGROUND_INTENSITY);
+                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_GREEN | windows.FOREGROUND_BLUE | windows.FOREGROUND_INTENSITY) catch {};
             },
             TtyColor.White, TtyColor.Bold => {
-                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_RED | windows.FOREGROUND_GREEN | windows.FOREGROUND_BLUE | windows.FOREGROUND_INTENSITY);
+                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_RED | windows.FOREGROUND_GREEN | windows.FOREGROUND_BLUE | windows.FOREGROUND_INTENSITY) catch {};
             },
             TtyColor.Dim => {
-                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_INTENSITY);
+                _ = windows.SetConsoleTextAttribute(stderr_file.handle, windows.FOREGROUND_INTENSITY) catch {};
             },
             TtyColor.Reset => {
-                _ = windows.SetConsoleTextAttribute(stderr_file.handle, S.attrs);
+                _ = windows.SetConsoleTextAttribute(stderr_file.handle, S.attrs) catch {};
             },
         }
     }
 @@ -633,7 +641,7 @@ fn machoSearchSymbols(symbols: []const MachoSymbol, address: usize) ?*const Mach
 }
 fn printSourceAtAddressMacOs(di: *DebugInfo, out_stream: var, address: usize, tty_color: bool) !void {
-    const base_addr = std.os.getBaseAddress();
+    const base_addr = process.getBaseAddress();
     const adjusted_addr = 0x100000000 + (address - base_addr);
     const symbol = machoSearchSymbols(di.symbols, adjusted_addr) orelse {
 @@ -648,7 +656,7 @@ fn printSourceAtAddressMacOs(di: *DebugInfo, out_stream: var, address: usize, tt
     const symbol_name = mem.toSliceConst(u8, di.strings.ptr + symbol.nlist.n_strx);
     const compile_unit_name = if (symbol.ofile) |ofile| blk: {
         const ofile_path = mem.toSliceConst(u8, di.strings.ptr + ofile.n_strx);
-        break :blk os.path.basename(ofile_path);
+        break :blk fs.path.basename(ofile_path);
     } else "???";
     if (getLineNumberInfoMacOs(di, symbol.*, adjusted_addr)) |line_info| {
         defer line_info.deinit();
 @@ -715,7 +723,7 @@ pub fn printSourceAtAddressDwarf(
     }
 }
-pub fn printSourceAtAddressLinux(debug_info: *DebugInfo, out_stream: var, address: usize, tty_color: bool) !void {
+pub fn printSourceAtAddressPosix(debug_info: *DebugInfo, out_stream: var, address: usize, tty_color: bool) !void {
     return printSourceAtAddressDwarf(debug_info, out_stream, address, tty_color, printLineFromFileAnyOs);
 }
 @@ -775,16 +783,17 @@ pub const OpenSelfDebugInfoError = error{
 };
 pub fn openSelfDebugInfo(allocator: *mem.Allocator) !DebugInfo {
-    switch (builtin.os) {
+    if (windows.is_the_target) {
-        builtin.Os.linux, builtin.Os.freebsd, builtin.Os.netbsd => return openSelfDebugInfoLinux(allocator),
+        return openSelfDebugInfoWindows(allocator);
-        builtin.Os.macosx, builtin.Os.ios => return openSelfDebugInfoMacOs(allocator),
+    }
-        builtin.Os.windows => return openSelfDebugInfoWindows(allocator),
+    if (os.darwin.is_the_target) {
-        else => return error.UnsupportedOperatingSystem,
+        return openSelfDebugInfoMacOs(allocator);
     }
+    return openSelfDebugInfoPosix(allocator);
 }
 fn openSelfDebugInfoWindows(allocator: *mem.Allocator) !DebugInfo {
-    const self_file = try os.openSelfExe();
+    const self_file = try fs.openSelfExe();
     defer self_file.close();
     const coff_obj = try allocator.create(coff.Coff);
 @@ -811,7 +820,7 @@ fn openSelfDebugInfoWindows(allocator: *mem.Allocator) !DebugInfo {
     const len = try di.coff.getPdbPath(path_buf[0..]);
     const raw_path = path_buf[0..len];
-    const path = try os.path.resolve(allocator, [][]const u8{raw_path});
+    const path = try fs.path.resolve(allocator, [][]const u8{raw_path});
     try di.pdb.openFile(di.coff, path);
 @@ -893,7 +902,7 @@ fn openSelfDebugInfoWindows(allocator: *mem.Allocator) !DebugInfo {
         if (this_record_len % 4 != 0) {
             const round_to_next_4 = (this_record_len | 0x3) + 1;
             const march_forward_bytes = round_to_next_4 - this_record_len;
-            try dbi.seekForward(march_forward_bytes);
+            try dbi.seekBy(@intCast(isize, march_forward_bytes));
             this_record_len += march_forward_bytes;
         }
 @@ -1001,29 +1010,27 @@ pub fn openElfDebugInfo(
     return di;
 }
-fn openSelfDebugInfoLinux(allocator: *mem.Allocator) !DwarfInfo {
+fn openSelfDebugInfoPosix(allocator: *mem.Allocator) !DwarfInfo {
     const S = struct {
-        var self_exe_file: os.File = undefined;
+        var self_exe_file: File = undefined;
         var self_exe_mmap_seekable: io.SliceSeekableInStream = undefined;
     };
-    S.self_exe_file = try os.openSelfExe();
+    S.self_exe_file = try fs.openSelfExe();
     errdefer S.self_exe_file.close();
-    const self_exe_mmap_len = try S.self_exe_file.getEndPos();
+    const self_exe_mmap_len = mem.alignForward(try S.self_exe_file.getEndPos(), mem.page_size);
-    const self_exe_mmap = os.posix.mmap(
+    const self_exe_mmap = try os.mmap(
         null,
         self_exe_mmap_len,
-        os.posix.PROT_READ,
+        os.PROT_READ,
-        os.posix.MAP_SHARED,
+        os.MAP_SHARED,
         S.self_exe_file.handle,
         0,
     );
-    if (self_exe_mmap == os.posix.MAP_FAILED) return error.OutOfMemory;
+    errdefer os.munmap(self_exe_mmap);
-    errdefer assert(os.posix.munmap(self_exe_mmap, self_exe_mmap_len) == 0);
-    const file_mmap_slice = @intToPtr([*]const u8, self_exe_mmap)[0..self_exe_mmap_len];
+    S.self_exe_mmap_seekable = io.SliceSeekableInStream.init(self_exe_mmap);
-    S.self_exe_mmap_seekable = io.SliceSeekableInStream.init(file_mmap_slice);
     return openElfDebugInfo(
         allocator,
 @@ -1112,11 +1119,11 @@ fn openSelfDebugInfoMacOs(allocator: *mem.Allocator) !DebugInfo {
 }
 fn printLineFromFileAnyOs(out_stream: var, line_info: LineInfo) !void {
-    var f = try os.File.openRead(line_info.file_name);
+    var f = try File.openRead(line_info.file_name);
     defer f.close();
     // TODO fstat and make sure that the file has the correct size
-    var buf: [os.page_size]u8 = undefined;
+    var buf: [mem.page_size]u8 = undefined;
     var line: usize = 1;
     var column: usize = 1;
     var abs_index: usize = 0;
 @@ -1195,7 +1202,7 @@ pub const DwarfInfo = struct {
 };
 pub const DebugInfo = switch (builtin.os) {
-    builtin.Os.macosx, builtin.Os.ios => struct {
+    .macosx, .ios, .watchos, .tvos => struct {
         symbols: []const MachoSymbol,
         strings: []const u8,
         ofiles: OFileTable,
 @@ -1211,13 +1218,13 @@ pub const DebugInfo = switch (builtin.os) {
             return self.ofiles.allocator;
         }
     },
-    builtin.Os.uefi, builtin.Os.windows => struct {
+    .uefi, .windows => struct {
         pdb: pdb.Pdb,
         coff: *coff.Coff,
         sect_contribs: []pdb.SectionContribEntry,
         modules: []Module,
     },
-    builtin.Os.linux, builtin.Os.freebsd, builtin.Os.netbsd => DwarfInfo,
+    .linux, .freebsd, .netbsd => DwarfInfo,
     else => @compileError("Unsupported OS"),
 };
 @@ -1411,7 +1418,7 @@ const LineNumberProgram = struct {
                 return error.InvalidDebugInfo;
             } else
                 self.include_dirs[file_entry.dir_index];
-            const file_name = try os.path.join(self.file_entries.allocator, [][]const u8{ dir_name, file_entry.file_name });
+            const file_name = try fs.path.join(self.file_entries.allocator, [][]const u8{ dir_name, file_entry.file_name });
             errdefer self.file_entries.allocator.free(file_name);
             return LineInfo{
                 .line = if (self.prev_line >= 0) @intCast(u64, self.prev_line) else 0,
 @@ -1938,7 +1945,7 @@ fn getLineNumberInfoDwarf(di: *DwarfInfo, compile_unit: CompileUnit, target_addr
                 },
                 else => {
                     const fwd_amt = math.cast(isize, op_size - 1) catch return error.InvalidDebugInfo;
-                    try di.dwarf_seekable_stream.seekForward(fwd_amt);
+                    try di.dwarf_seekable_stream.seekBy(fwd_amt);
                 },
             }
         } else if (opcode >= opcode_base) {
 @@ -1990,7 +1997,7 @@ fn getLineNumberInfoDwarf(di: *DwarfInfo, compile_unit: CompileUnit, target_addr
                 else => {
                     if (opcode - 1 >= standard_opcode_lengths.len) return error.InvalidDebugInfo;
                     const len_bytes = standard_opcode_lengths[opcode - 1];
-                    try di.dwarf_seekable_stream.seekForward(len_bytes);
+                    try di.dwarf_seekable_stream.seekBy(len_bytes);
                 },
             }
         }

std/dynamic_library.zig+25-41

 @@ -1,21 +1,17 @@
 const builtin = @import("builtin");
-const Os = builtin.Os;
 const std = @import("std.zig");
 const mem = std.mem;
-const cstr = std.cstr;
 const os = std.os;
 const assert = std.debug.assert;
 const testing = std.testing;
 const elf = std.elf;
-const linux = os.linux;
+const windows = std.os.windows;
-const windows = os.windows;
-const win_util = @import("os/windows/util.zig");
 const maxInt = std.math.maxInt;
 pub const DynLib = switch (builtin.os) {
-    Os.linux => LinuxDynLib,
+    .linux => LinuxDynLib,
-    Os.windows => WindowsDynLib,
+    .windows => WindowsDynLib,
     else => void,
 };
 @@ -105,39 +101,35 @@ pub fn linkmap_iterator(phdrs: []elf.Phdr) !LinkMap.Iterator {
 pub const LinuxDynLib = struct {
     elf_lib: ElfLib,
     fd: i32,
-    map_addr: usize,
+    memory: []align(mem.page_size) u8,
-    map_size: usize,
     /// Trusts the file
     pub fn open(allocator: *mem.Allocator, path: []const u8) !DynLib {
-        const fd = try std.os.posixOpen(path, 0, linux.O_RDONLY | linux.O_CLOEXEC);
+        const fd = try os.open(path, 0, os.O_RDONLY | os.O_CLOEXEC);
-        errdefer std.os.close(fd);
+        errdefer os.close(fd);
-        const size = @intCast(usize, (try std.os.posixFStat(fd)).size);
+        const size = @intCast(usize, (try os.fstat(fd)).size);
-        const addr = linux.mmap(
+        const bytes = try os.mmap(
             null,
             size,
-            linux.PROT_READ | linux.PROT_EXEC,
+            os.PROT_READ | os.PROT_EXEC,
-            linux.MAP_PRIVATE | linux.MAP_LOCKED,
+            os.MAP_PRIVATE | os.MAP_LOCKED,
             fd,
             0,
         );
-        errdefer _ = linux.munmap(addr, size);
+        errdefer os.munmap(bytes);
-        const bytes = @intToPtr([*]align(std.os.page_size) u8, addr)[0..size];
         return DynLib{
             .elf_lib = try ElfLib.init(bytes),
             .fd = fd,
-            .map_addr = addr,
+            .memory = bytes,
-            .map_size = size,
         };
     }
     pub fn close(self: *DynLib) void {
-        _ = linux.munmap(self.map_addr, self.map_size);
+        os.munmap(self.memory);
-        std.os.close(self.fd);
+        os.close(self.fd);
         self.* = undefined;
     }
 @@ -149,7 +141,7 @@ pub const LinuxDynLib = struct {
 pub const ElfLib = struct {
     strings: [*]u8,
     syms: [*]elf.Sym,
-    hashtab: [*]linux.Elf_Symndx,
+    hashtab: [*]os.Elf_Symndx,
     versym: ?[*]u16,
     verdef: ?*elf.Verdef,
     base: usize,
 @@ -184,7 +176,7 @@ pub const ElfLib = struct {
         var maybe_strings: ?[*]u8 = null;
         var maybe_syms: ?[*]elf.Sym = null;
-        var maybe_hashtab: ?[*]linux.Elf_Symndx = null;
+        var maybe_hashtab: ?[*]os.Elf_Symndx = null;
         var maybe_versym: ?[*]u16 = null;
         var maybe_verdef: ?*elf.Verdef = null;
 @@ -195,7 +187,7 @@ pub const ElfLib = struct {
                 switch (dynv[i]) {
                     elf.DT_STRTAB => maybe_strings = @intToPtr([*]u8, p),
                     elf.DT_SYMTAB => maybe_syms = @intToPtr([*]elf.Sym, p),
-                    elf.DT_HASH => maybe_hashtab = @intToPtr([*]linux.Elf_Symndx, p),
+                    elf.DT_HASH => maybe_hashtab = @intToPtr([*]os.Elf_Symndx, p),
                     elf.DT_VERSYM => maybe_versym = @intToPtr([*]u16, p),
                     elf.DT_VERDEF => maybe_verdef = @intToPtr(*elf.Verdef, p),
                     else => {},
 @@ -225,7 +217,7 @@ pub const ElfLib = struct {
             if (0 == (u32(1) << @intCast(u5, self.syms[i].st_info & 0xf) & OK_TYPES)) continue;
             if (0 == (u32(1) << @intCast(u5, self.syms[i].st_info >> 4) & OK_BINDS)) continue;
             if (0 == self.syms[i].st_shndx) continue;
-            if (!mem.eql(u8, name, cstr.toSliceConst(self.strings + self.syms[i].st_name))) continue;
+            if (!mem.eql(u8, name, mem.toSliceConst(u8, self.strings + self.syms[i].st_name))) continue;
             if (maybe_versym) |versym| {
                 if (!checkver(self.verdef.?, versym[i], vername, self.strings))
                     continue;
 @@ -248,7 +240,7 @@ fn checkver(def_arg: *elf.Verdef, vsym_arg: i32, vername: []const u8, strings: [
         def = @intToPtr(*elf.Verdef, @ptrToInt(def) + def.vd_next);
     }
     const aux = @intToPtr(*elf.Verdaux, @ptrToInt(def) + def.vd_aux);
-    return mem.eql(u8, vername, cstr.toSliceConst(strings + aux.vda_name));
+    return mem.eql(u8, vername, mem.toSliceConst(u8, strings + aux.vda_name));
 }
 pub const WindowsDynLib = struct {
 @@ -256,36 +248,28 @@ pub const WindowsDynLib = struct {
     dll: windows.HMODULE,
     pub fn open(allocator: *mem.Allocator, path: []const u8) !WindowsDynLib {
-        const wpath = try win_util.sliceToPrefixedFileW(path);
+        const wpath = try windows.sliceToPrefixedFileW(path);
         return WindowsDynLib{
             .allocator = allocator,
-            .dll = windows.LoadLibraryW(&wpath) orelse {
+            .dll = try windows.LoadLibraryW(&wpath),
-                const err = windows.GetLastError();
-                switch (err) {
-                    windows.ERROR.FILE_NOT_FOUND => return error.FileNotFound,
-                    windows.ERROR.PATH_NOT_FOUND => return error.FileNotFound,
-                    windows.ERROR.MOD_NOT_FOUND => return error.FileNotFound,
-                    else => return os.unexpectedErrorWindows(err),
-                }
-            },
         };
     }
     pub fn close(self: *WindowsDynLib) void {
-        assert(windows.FreeLibrary(self.dll) != 0);
+        windows.FreeLibrary(self.dll);
         self.* = undefined;
     }
     pub fn lookup(self: *WindowsDynLib, name: []const u8) ?usize {
-        return @ptrToInt(windows.GetProcAddress(self.dll, name.ptr));
+        return @ptrToInt(windows.kernel32.GetProcAddress(self.dll, name.ptr));
     }
 };
 test "dynamic_library" {
     const libname = switch (builtin.os) {
-        Os.linux => "invalid_so.so",
+        .linux => "invalid_so.so",
-        Os.windows => "invalid_dll.dll",
+        .windows => "invalid_dll.dll",
         else => return,
     };

std/elf.zig+5-4

...	@@ -6,6 +6,7 @@ const math = std.math;	...	@@ -6,6 +6,7 @@ const math = std.math;
6	const mem = std.mem;	6	const mem = std.mem;
7	const debug = std.debug;	7	const debug = std.debug;
8	const InStream = std.stream.InStream;	8	const InStream = std.stream.InStream;
		9	const File = std.fs.File;
9		10
10	pub const AT_NULL = 0;	11	pub const AT_NULL = 0;
11	pub const AT_IGNORE = 1;	12	pub const AT_IGNORE = 1;
...	@@ -367,7 +368,7 @@ pub const Elf = struct {	...	@@ -367,7 +368,7 @@ pub const Elf = struct {
367	string_section: *SectionHeader,	368	string_section: *SectionHeader,
368	section_headers: []SectionHeader,	369	section_headers: []SectionHeader,
369	allocator: *mem.Allocator,	370	allocator: *mem.Allocator,
370	prealloc_file: os.File,	371	prealloc_file: File,
371		372
372	/// Call close when done.	373	/// Call close when done.
373	pub fn openPath(elf: Elf, allocator: mem.Allocator, path: []const u8) !void {	374	pub fn openPath(elf: Elf, allocator: mem.Allocator, path: []const u8) !void {
...	@@ -375,7 +376,7 @@ pub const Elf = struct {	...	@@ -375,7 +376,7 @@ pub const Elf = struct {
375	}	376	}
376		377
377	/// Call close when done.	378	/// Call close when done.
378	pub fn openFile(elf: Elf, allocator: mem.Allocator, file: os.File) !void {	379	pub fn openFile(elf: Elf, allocator: mem.Allocator, file: File) !void {
379	@compileError("TODO implement");	380	@compileError("TODO implement");
380	}	381	}
381		382
...	@@ -410,7 +411,7 @@ pub const Elf = struct {	...	@@ -410,7 +411,7 @@ pub const Elf = struct {
410	if (version_byte != 1) return error.InvalidFormat;	411	if (version_byte != 1) return error.InvalidFormat;
411		412
412	// skip over padding	413	// skip over padding
413	try seekable_stream.seekForward(9);	414	try seekable_stream.seekBy(9);
414		415
415	elf.file_type = switch (try in.readInt(u16, elf.endian)) {	416	elf.file_type = switch (try in.readInt(u16, elf.endian)) {
416	1 => FileType.Relocatable,	417	1 => FileType.Relocatable,
...	@@ -447,7 +448,7 @@ pub const Elf = struct {	...	@@ -447,7 +448,7 @@ pub const Elf = struct {
447	}	448	}
448		449
449	// skip over flags	450	// skip over flags
450	try seekable_stream.seekForward(4);	451	try seekable_stream.seekBy(4);
451		452
452	const header_size = try in.readInt(u16, elf.endian);	453	const header_size = try in.readInt(u16, elf.endian);
453	if ((elf.is_64 and header_size != 64) or (!elf.is_64 and header_size != 52)) {	454	if ((elf.is_64 and header_size != 64) or (!elf.is_64 and header_size != 52)) {

std/event/fs.zig+110-114

 @@ -5,9 +5,10 @@ const assert = std.debug.assert;
 const testing = std.testing;
 const os = std.os;
 const mem = std.mem;
-const posix = os.posix;
 const windows = os.windows;
 const Loop = event.Loop;
+const fd_t = os.fd_t;
+const File = std.fs.File;
 pub const RequestNode = std.atomic.Queue(Request).Node;
 @@ -30,53 +31,53 @@ pub const Request = struct {
         End, // special - means the fs thread should exit
         pub const PWriteV = struct {
-            fd: os.FileHandle,
+            fd: fd_t,
-            iov: []const os.posix.iovec_const,
+            iov: []const os.iovec_const,
             offset: usize,
             result: Error!void,
-            pub const Error = os.PosixWriteError;
+            pub const Error = os.WriteError;
         };
         pub const PReadV = struct {
-            fd: os.FileHandle,
+            fd: fd_t,
-            iov: []const os.posix.iovec,
+            iov: []const os.iovec,
             offset: usize,
             result: Error!usize,
-            pub const Error = os.PosixReadError;
+            pub const Error = os.ReadError;
         };
         pub const Open = struct {
             /// must be null terminated. TODO https://github.com/ziglang/zig/issues/265
             path: []const u8,
             flags: u32,
-            mode: os.File.Mode,
+            mode: File.Mode,
-            result: Error!os.FileHandle,
+            result: Error!fd_t,
-            pub const Error = os.File.OpenError;
+            pub const Error = File.OpenError;
         };
         pub const WriteFile = struct {
             /// must be null terminated. TODO https://github.com/ziglang/zig/issues/265
             path: []const u8,
             contents: []const u8,
-            mode: os.File.Mode,
+            mode: File.Mode,
             result: Error!void,
-            pub const Error = os.File.OpenError || os.File.WriteError;
+            pub const Error = File.OpenError || File.WriteError;
         };
         pub const Close = struct {
-            fd: os.FileHandle,
+            fd: fd_t,
         };
     };
 };
-pub const PWriteVError = error{OutOfMemory} || os.File.WriteError;
+pub const PWriteVError = error{OutOfMemory} || File.WriteError;
 /// data - just the inner references - must live until pwritev promise completes.
-pub async fn pwritev(loop: *Loop, fd: os.FileHandle, data: []const []const u8, offset: usize) PWriteVError!void {
+pub async fn pwritev(loop: *Loop, fd: fd_t, data: []const []const u8, offset: usize) PWriteVError!void {
     // workaround for https://github.com/ziglang/zig/issues/1194
     suspend {
         resume @handle();
 @@ -87,11 +88,11 @@ pub async fn pwritev(loop: *Loop, fd: os.FileHandle, data: []const []const u8, o
         builtin.Os.freebsd,
         builtin.Os.netbsd,
         => {
-            const iovecs = try loop.allocator.alloc(os.posix.iovec_const, data.len);
+            const iovecs = try loop.allocator.alloc(os.iovec_const, data.len);
             defer loop.allocator.free(iovecs);
             for (data) |buf, i| {
-                iovecs[i] = os.posix.iovec_const{
+                iovecs[i] = os.iovec_const{
                     .iov_base = buf.ptr,
                     .iov_len = buf.len,
                 };
 @@ -109,7 +110,7 @@ pub async fn pwritev(loop: *Loop, fd: os.FileHandle, data: []const []const u8, o
 }
 /// data must outlive the returned promise
-pub async fn pwritevWindows(loop: *Loop, fd: os.FileHandle, data: []const []const u8, offset: usize) os.WindowsWriteError!void {
+pub async fn pwritevWindows(loop: *Loop, fd: fd_t, data: []const []const u8, offset: usize) os.WindowsWriteError!void {
     if (data.len == 0) return;
     if (data.len == 1) return await (async pwriteWindows(loop, fd, data[0], offset) catch unreachable);
 @@ -121,7 +122,7 @@ pub async fn pwritevWindows(loop: *Loop, fd: os.FileHandle, data: []const []cons
     }
 }
-pub async fn pwriteWindows(loop: *Loop, fd: os.FileHandle, data: []const u8, offset: u64) os.WindowsWriteError!void {
+pub async fn pwriteWindows(loop: *Loop, fd: fd_t, data: []const u8, offset: u64) os.WindowsWriteError!void {
     // workaround for https://github.com/ziglang/zig/issues/1194
     suspend {
         resume @handle();
 @@ -146,33 +147,32 @@ pub async fn pwriteWindows(loop: *Loop, fd: os.FileHandle, data: []const u8, off
     errdefer loop.finishOneEvent();
     errdefer {
-        _ = windows.CancelIoEx(fd, &resume_node.base.overlapped);
+        _ = windows.kernel32.CancelIoEx(fd, &resume_node.base.overlapped);
     }
     suspend {
-        _ = windows.WriteFile(fd, data.ptr, @intCast(windows.DWORD, data.len), null, &resume_node.base.overlapped);
+        _ = windows.kernel32.WriteFile(fd, data.ptr, @intCast(windows.DWORD, data.len), null, &resume_node.base.overlapped);
     }
     var bytes_transferred: windows.DWORD = undefined;
-    if (windows.GetOverlappedResult(fd, &resume_node.base.overlapped, &bytes_transferred, windows.FALSE) == 0) {
+    if (windows.kernel32.GetOverlappedResult(fd, &resume_node.base.overlapped, &bytes_transferred, windows.FALSE) == 0) {
-        const err = windows.GetLastError();
+        switch (windows.kernel32.GetLastError()) {
-        return switch (err) {
             windows.ERROR.IO_PENDING => unreachable,
-            windows.ERROR.INVALID_USER_BUFFER => error.SystemResources,
+            windows.ERROR.INVALID_USER_BUFFER => return error.SystemResources,
-            windows.ERROR.NOT_ENOUGH_MEMORY => error.SystemResources,
+            windows.ERROR.NOT_ENOUGH_MEMORY => return error.SystemResources,
-            windows.ERROR.OPERATION_ABORTED => error.OperationAborted,
+            windows.ERROR.OPERATION_ABORTED => return error.OperationAborted,
-            windows.ERROR.NOT_ENOUGH_QUOTA => error.SystemResources,
+            windows.ERROR.NOT_ENOUGH_QUOTA => return error.SystemResources,
-            windows.ERROR.BROKEN_PIPE => error.BrokenPipe,
+            windows.ERROR.BROKEN_PIPE => return error.BrokenPipe,
-            else => os.unexpectedErrorWindows(err),
+            else => |err| return windows.unexpectedError(err),
-        };
+        }
     }
 }
 /// iovecs must live until pwritev promise completes.
 pub async fn pwritevPosix(
     loop: *Loop,
-    fd: os.FileHandle,
+    fd: fd_t,
-    iovecs: []const posix.iovec_const,
+    iovecs: []const os.iovec_const,
     offset: usize,
-) os.PosixWriteError!void {
+) os.WriteError!void {
     // workaround for https://github.com/ziglang/zig/issues/1194
     suspend {
         resume @handle();
 @@ -209,10 +209,10 @@ pub async fn pwritevPosix(
     return req_node.data.msg.PWriteV.result;
 }
-pub const PReadVError = error{OutOfMemory} || os.File.ReadError;
+pub const PReadVError = error{OutOfMemory} || File.ReadError;
 /// data - just the inner references - must live until preadv promise completes.
-pub async fn preadv(loop: *Loop, fd: os.FileHandle, data: []const []u8, offset: usize) PReadVError!usize {
+pub async fn preadv(loop: *Loop, fd: fd_t, data: []const []u8, offset: usize) PReadVError!usize {
     // workaround for https://github.com/ziglang/zig/issues/1194
     suspend {
         resume @handle();
 @@ -225,11 +225,11 @@ pub async fn preadv(loop: *Loop, fd: os.FileHandle, data: []const []u8, offset:
         builtin.Os.freebsd,
         builtin.Os.netbsd,
         => {
-            const iovecs = try loop.allocator.alloc(os.posix.iovec, data.len);
+            const iovecs = try loop.allocator.alloc(os.iovec, data.len);
             defer loop.allocator.free(iovecs);
             for (data) |buf, i| {
-                iovecs[i] = os.posix.iovec{
+                iovecs[i] = os.iovec{
                     .iov_base = buf.ptr,
                     .iov_len = buf.len,
                 };
 @@ -247,7 +247,7 @@ pub async fn preadv(loop: *Loop, fd: os.FileHandle, data: []const []u8, offset:
 }
 /// data must outlive the returned promise
-pub async fn preadvWindows(loop: *Loop, fd: os.FileHandle, data: []const []u8, offset: u64) os.WindowsReadError!usize {
+pub async fn preadvWindows(loop: *Loop, fd: fd_t, data: []const []u8, offset: u64) !usize {
     assert(data.len != 0);
     if (data.len == 1) return await (async preadWindows(loop, fd, data[0], offset) catch unreachable);
 @@ -271,7 +271,7 @@ pub async fn preadvWindows(loop: *Loop, fd: os.FileHandle, data: []const []u8, o
     }
 }
-pub async fn preadWindows(loop: *Loop, fd: os.FileHandle, data: []u8, offset: u64) !usize {
+pub async fn preadWindows(loop: *Loop, fd: fd_t, data: []u8, offset: u64) !usize {
     // workaround for https://github.com/ziglang/zig/issues/1194
     suspend {
         resume @handle();
 @@ -291,25 +291,24 @@ pub async fn preadWindows(loop: *Loop, fd: os.FileHandle, data: []u8, offset: u6
         },
     };
     // TODO only call create io completion port once per fd
-    _ = windows.CreateIoCompletionPort(fd, loop.os_data.io_port, undefined, undefined);
+    _ = windows.CreateIoCompletionPort(fd, loop.os_data.io_port, undefined, undefined) catch undefined;
     loop.beginOneEvent();
     errdefer loop.finishOneEvent();
     errdefer {
-        _ = windows.CancelIoEx(fd, &resume_node.base.overlapped);
+        _ = windows.kernel32.CancelIoEx(fd, &resume_node.base.overlapped);
     }
     suspend {
-        _ = windows.ReadFile(fd, data.ptr, @intCast(windows.DWORD, data.len), null, &resume_node.base.overlapped);
+        _ = windows.kernel32.ReadFile(fd, data.ptr, @intCast(windows.DWORD, data.len), null, &resume_node.base.overlapped);
     }
     var bytes_transferred: windows.DWORD = undefined;
-    if (windows.GetOverlappedResult(fd, &resume_node.base.overlapped, &bytes_transferred, windows.FALSE) == 0) {
+    if (windows.kernel32.GetOverlappedResult(fd, &resume_node.base.overlapped, &bytes_transferred, windows.FALSE) == 0) {
-        const err = windows.GetLastError();
+        switch (windows.kernel32.GetLastError()) {
-        switch (err) {
             windows.ERROR.IO_PENDING => unreachable,
             windows.ERROR.OPERATION_ABORTED => return error.OperationAborted,
             windows.ERROR.BROKEN_PIPE => return error.BrokenPipe,
             windows.ERROR.HANDLE_EOF => return usize(bytes_transferred),
-            else => return os.unexpectedErrorWindows(err),
+            else => |err| return windows.unexpectedError(err),
         }
     }
     return usize(bytes_transferred);
 @@ -318,10 +317,10 @@ pub async fn preadWindows(loop: *Loop, fd: os.FileHandle, data: []u8, offset: u6
 /// iovecs must live until preadv promise completes
 pub async fn preadvPosix(
     loop: *Loop,
-    fd: os.FileHandle,
+    fd: fd_t,
-    iovecs: []const posix.iovec,
+    iovecs: []const os.iovec,
     offset: usize,
-) os.PosixReadError!usize {
+) os.ReadError!usize {
     // workaround for https://github.com/ziglang/zig/issues/1194
     suspend {
         resume @handle();
 @@ -362,8 +361,8 @@ pub async fn openPosix(
     loop: *Loop,
     path: []const u8,
     flags: u32,
-    mode: os.File.Mode,
+    mode: File.Mode,
-) os.File.OpenError!os.FileHandle {
+) File.OpenError!fd_t {
     // workaround for https://github.com/ziglang/zig/issues/1194
     suspend {
         resume @handle();
 @@ -402,19 +401,21 @@ pub async fn openPosix(
     return req_node.data.msg.Open.result;
 }
-pub async fn openRead(loop: *Loop, path: []const u8) os.File.OpenError!os.FileHandle {
+pub async fn openRead(loop: *Loop, path: []const u8) File.OpenError!fd_t {
     switch (builtin.os) {
         builtin.Os.macosx, builtin.Os.linux, builtin.Os.freebsd, builtin.Os.netbsd => {
-            const flags = posix.O_LARGEFILE | posix.O_RDONLY | posix.O_CLOEXEC;
+            const flags = os.O_LARGEFILE | os.O_RDONLY | os.O_CLOEXEC;
-            return await (async openPosix(loop, path, flags, os.File.default_mode) catch unreachable);
+            return await (async openPosix(loop, path, flags, File.default_mode) catch unreachable);
         },
-        builtin.Os.windows => return os.windowsOpen(
+        builtin.Os.windows => return windows.CreateFile(
             path,
             windows.GENERIC_READ,
             windows.FILE_SHARE_READ,
+            null,
             windows.OPEN_EXISTING,
             windows.FILE_ATTRIBUTE_NORMAL | windows.FILE_FLAG_OVERLAPPED,
+            null,
         ),
         else => @compileError("Unsupported OS"),
 @@ -423,27 +424,29 @@ pub async fn openRead(loop: *Loop, path: []const u8) os.File.OpenError!os.FileHa
 /// Creates if does not exist. Truncates the file if it exists.
 /// Uses the default mode.
-pub async fn openWrite(loop: *Loop, path: []const u8) os.File.OpenError!os.FileHandle {
+pub async fn openWrite(loop: *Loop, path: []const u8) File.OpenError!fd_t {
-    return await (async openWriteMode(loop, path, os.File.default_mode) catch unreachable);
+    return await (async openWriteMode(loop, path, File.default_mode) catch unreachable);
 }
 /// Creates if does not exist. Truncates the file if it exists.
-pub async fn openWriteMode(loop: *Loop, path: []const u8, mode: os.File.Mode) os.File.OpenError!os.FileHandle {
+pub async fn openWriteMode(loop: *Loop, path: []const u8, mode: File.Mode) File.OpenError!fd_t {
     switch (builtin.os) {
         builtin.Os.macosx,
         builtin.Os.linux,
         builtin.Os.freebsd,
         builtin.Os.netbsd,
         => {
-            const flags = posix.O_LARGEFILE | posix.O_WRONLY | posix.O_CREAT | posix.O_CLOEXEC | posix.O_TRUNC;
+            const flags = os.O_LARGEFILE | os.O_WRONLY | os.O_CREAT | os.O_CLOEXEC | os.O_TRUNC;
-            return await (async openPosix(loop, path, flags, os.File.default_mode) catch unreachable);
+            return await (async openPosix(loop, path, flags, File.default_mode) catch unreachable);
         },
-        builtin.Os.windows => return os.windowsOpen(
+        builtin.Os.windows => return windows.CreateFile(
             path,
             windows.GENERIC_WRITE,
             windows.FILE_SHARE_WRITE | windows.FILE_SHARE_READ | windows.FILE_SHARE_DELETE,
+            null,
             windows.CREATE_ALWAYS,
             windows.FILE_ATTRIBUTE_NORMAL | windows.FILE_FLAG_OVERLAPPED,
+            null,
         ),
         else => @compileError("Unsupported OS"),
     }
 @@ -453,20 +456,22 @@ pub async fn openWriteMode(loop: *Loop, path: []const u8, mode: os.File.Mode) os
 pub async fn openReadWrite(
     loop: *Loop,
     path: []const u8,
-    mode: os.File.Mode,
+    mode: File.Mode,
-) os.File.OpenError!os.FileHandle {
+) File.OpenError!fd_t {
     switch (builtin.os) {
         builtin.Os.macosx, builtin.Os.linux, builtin.Os.freebsd, builtin.Os.netbsd => {
-            const flags = posix.O_LARGEFILE | posix.O_RDWR | posix.O_CREAT | posix.O_CLOEXEC;
+            const flags = os.O_LARGEFILE | os.O_RDWR | os.O_CREAT | os.O_CLOEXEC;
             return await (async openPosix(loop, path, flags, mode) catch unreachable);
         },
-        builtin.Os.windows => return os.windowsOpen(
+        builtin.Os.windows => return windows.CreateFile(
             path,
             windows.GENERIC_WRITE | windows.GENERIC_READ,
             windows.FILE_SHARE_WRITE | windows.FILE_SHARE_READ | windows.FILE_SHARE_DELETE,
+            null,
             windows.OPEN_ALWAYS,
             windows.FILE_ATTRIBUTE_NORMAL | windows.FILE_FLAG_OVERLAPPED,
+            null,
         ),
         else => @compileError("Unsupported OS"),
 @@ -487,7 +492,7 @@ pub const CloseOperation = struct {
         builtin.Os.linux, builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => OsDataPosix,
         builtin.Os.windows => struct {
-            handle: ?os.FileHandle,
+            handle: ?fd_t,
         },
         else => @compileError("Unsupported OS"),
 @@ -551,7 +556,7 @@ pub const CloseOperation = struct {
         }
     }
-    pub fn setHandle(self: *CloseOperation, handle: os.FileHandle) void {
+    pub fn setHandle(self: *CloseOperation, handle: fd_t) void {
         switch (builtin.os) {
             builtin.Os.linux,
             builtin.Os.macosx,
 @@ -585,7 +590,7 @@ pub const CloseOperation = struct {
         }
     }
-    pub fn getHandle(self: *CloseOperation) os.FileHandle {
+    pub fn getHandle(self: *CloseOperation) fd_t {
         switch (builtin.os) {
             builtin.Os.linux,
             builtin.Os.macosx,
 @@ -606,11 +611,11 @@ pub const CloseOperation = struct {
 /// contents must remain alive until writeFile completes.
 /// TODO make this atomic or provide writeFileAtomic and rename this one to writeFileTruncate
 pub async fn writeFile(loop: *Loop, path: []const u8, contents: []const u8) !void {
-    return await (async writeFileMode(loop, path, contents, os.File.default_mode) catch unreachable);
+    return await (async writeFileMode(loop, path, contents, File.default_mode) catch unreachable);
 }
 /// contents must remain alive until writeFile completes.
-pub async fn writeFileMode(loop: *Loop, path: []const u8, contents: []const u8, mode: os.File.Mode) !void {
+pub async fn writeFileMode(loop: *Loop, path: []const u8, contents: []const u8, mode: File.Mode) !void {
     switch (builtin.os) {
         builtin.Os.linux,
         builtin.Os.macosx,
 @@ -623,19 +628,21 @@ pub async fn writeFileMode(loop: *Loop, path: []const u8, contents: []const u8,
 }
 async fn writeFileWindows(loop: *Loop, path: []const u8, contents: []const u8) !void {
-    const handle = try os.windowsOpen(
+    const handle = try windows.CreateFile(
         path,
         windows.GENERIC_WRITE,
         windows.FILE_SHARE_WRITE | windows.FILE_SHARE_READ | windows.FILE_SHARE_DELETE,
+        null,
         windows.CREATE_ALWAYS,
         windows.FILE_ATTRIBUTE_NORMAL | windows.FILE_FLAG_OVERLAPPED,
+        null,
     );
     defer os.close(handle);
     try await (async pwriteWindows(loop, handle, contents, 0) catch unreachable);
 }
-async fn writeFileModeThread(loop: *Loop, path: []const u8, contents: []const u8, mode: os.File.Mode) !void {
+async fn writeFileModeThread(loop: *Loop, path: []const u8, contents: []const u8, mode: File.Mode) !void {
     // workaround for https://github.com/ziglang/zig/issues/1194
     suspend {
         resume @handle();
 @@ -689,7 +696,7 @@ pub async fn readFile(loop: *Loop, file_path: []const u8, max_size: usize) ![]u8
     defer list.deinit();
     while (true) {
-        try list.ensureCapacity(list.len + os.page_size);
+        try list.ensureCapacity(list.len + mem.page_size);
         const buf = list.items[list.len..];
         const buf_array = [][]u8{buf};
         const amt = try await (async preadv(loop, fd, buf_array, list.len) catch unreachable);
 @@ -787,7 +794,7 @@ pub fn Watch(comptime V: type) type {
             switch (builtin.os) {
                 builtin.Os.linux => {
-                    const inotify_fd = try os.linuxINotifyInit1(os.linux.IN_NONBLOCK | os.linux.IN_CLOEXEC);
+                    const inotify_fd = try os.inotify_init1(os.linux.IN_NONBLOCK | os.linux.IN_CLOEXEC);
                     errdefer os.close(inotify_fd);
                     var result: *Self = undefined;
 @@ -880,7 +887,7 @@ pub fn Watch(comptime V: type) type {
         }
         async fn addFileKEvent(self: *Self, file_path: []const u8, value: V) !?V {
-            const resolved_path = try os.path.resolve(self.channel.loop.allocator, [][]const u8{file_path});
+            const resolved_path = try std.fs.path.resolve(self.channel.loop.allocator, [][]const u8{file_path});
             var resolved_path_consumed = false;
             defer if (!resolved_path_consumed) self.channel.loop.allocator.free(resolved_path);
 @@ -888,10 +895,7 @@ pub fn Watch(comptime V: type) type {
             var close_op_consumed = false;
             defer if (!close_op_consumed) close_op.finish();
-            const flags = switch (builtin.os) {
+            const flags = if (os.darwin.is_the_target) os.O_SYMLINK | os.O_EVTONLY else 0;
-                builtin.Os.macosx => posix.O_SYMLINK | posix.O_EVTONLY,
-                else => 0,
-            };
             const mode = 0;
             const fd = try await (async openPosix(self.channel.loop, resolved_path, flags, mode) catch unreachable);
             close_op.setHandle(fd);
 @@ -943,16 +947,16 @@ pub fn Watch(comptime V: type) type {
             while (true) {
                 if (await (async self.channel.loop.bsdWaitKev(
                     @intCast(usize, close_op.getHandle()),
-                    posix.EVFILT_VNODE,
+                    os.EVFILT_VNODE,
-                    posix.NOTE_WRITE | posix.NOTE_DELETE,
+                    os.NOTE_WRITE | os.NOTE_DELETE,
                 ) catch unreachable)) |kev| {
                     // TODO handle EV_ERROR
-                    if (kev.fflags & posix.NOTE_DELETE != 0) {
+                    if (kev.fflags & os.NOTE_DELETE != 0) {
                         await (async self.channel.put(Self.Event{
                             .id = Event.Id.Delete,
                             .data = value_copy,
                         }) catch unreachable);
-                    } else if (kev.fflags & posix.NOTE_WRITE != 0) {
+                    } else if (kev.fflags & os.NOTE_WRITE != 0) {
                         await (async self.channel.put(Self.Event{
                             .id = Event.Id.CloseWrite,
                             .data = value_copy,
 @@ -961,6 +965,7 @@ pub fn Watch(comptime V: type) type {
                 } else |err| switch (err) {
                     error.EventNotFound => unreachable,
                     error.ProcessNotFound => unreachable,
+                    error.Overflow => unreachable,
                     error.AccessDenied, error.SystemResources => |casted_err| {
                         await (async self.channel.put(casted_err) catch unreachable);
                     },
 @@ -971,17 +976,17 @@ pub fn Watch(comptime V: type) type {
         async fn addFileLinux(self: *Self, file_path: []const u8, value: V) !?V {
             const value_copy = value;
-            const dirname = os.path.dirname(file_path) orelse ".";
+            const dirname = std.fs.path.dirname(file_path) orelse ".";
             const dirname_with_null = try std.cstr.addNullByte(self.channel.loop.allocator, dirname);
             var dirname_with_null_consumed = false;
             defer if (!dirname_with_null_consumed) self.channel.loop.allocator.free(dirname_with_null);
-            const basename = os.path.basename(file_path);
+            const basename = std.fs.path.basename(file_path);
             const basename_with_null = try std.cstr.addNullByte(self.channel.loop.allocator, basename);
             var basename_with_null_consumed = false;
             defer if (!basename_with_null_consumed) self.channel.loop.allocator.free(basename_with_null);
-            const wd = try os.linuxINotifyAddWatchC(
+            const wd = try os.inotify_add_watchC(
                 self.os_data.inotify_fd,
                 dirname_with_null.ptr,
                 os.linux.IN_CLOSE_WRITE | os.linux.IN_ONLYDIR | os.linux.IN_EXCL_UNLINK,
 @@ -1017,7 +1022,7 @@ pub fn Watch(comptime V: type) type {
             const value_copy = value;
             // TODO we might need to convert dirname and basename to canonical file paths ("short"?)
-            const dirname = try std.mem.dupe(self.channel.loop.allocator, u8, os.path.dirname(file_path) orelse ".");
+            const dirname = try std.mem.dupe(self.channel.loop.allocator, u8, std.fs.path.dirname(file_path) orelse ".");
             var dirname_consumed = false;
             defer if (!dirname_consumed) self.channel.loop.allocator.free(dirname);
 @@ -1025,13 +1030,13 @@ pub fn Watch(comptime V: type) type {
             defer self.channel.loop.allocator.free(dirname_utf16le);
             // TODO https://github.com/ziglang/zig/issues/265
-            const basename = os.path.basename(file_path);
+            const basename = std.fs.path.basename(file_path);
             const basename_utf16le_null = try std.unicode.utf8ToUtf16LeWithNull(self.channel.loop.allocator, basename);
             var basename_utf16le_null_consumed = false;
             defer if (!basename_utf16le_null_consumed) self.channel.loop.allocator.free(basename_utf16le_null);
             const basename_utf16le_no_null = basename_utf16le_null[0 .. basename_utf16le_null.len - 1];
-            const dir_handle = windows.CreateFileW(
+            const dir_handle = try windows.CreateFileW(
                 dirname_utf16le.ptr,
                 windows.FILE_LIST_DIRECTORY,
                 windows.FILE_SHARE_READ | windows.FILE_SHARE_DELETE | windows.FILE_SHARE_WRITE,
 @@ -1040,16 +1045,8 @@ pub fn Watch(comptime V: type) type {
                 windows.FILE_FLAG_BACKUP_SEMANTICS | windows.FILE_FLAG_OVERLAPPED,
                 null,
             );
-            if (dir_handle == windows.INVALID_HANDLE_VALUE) {
-                const err = windows.GetLastError();
-                switch (err) {
-                    windows.ERROR.FILE_NOT_FOUND => return error.FileNotFound,
-                    windows.ERROR.PATH_NOT_FOUND => return error.FileNotFound,
-                    else => return os.unexpectedErrorWindows(err),
-                }
-            }
             var dir_handle_consumed = false;
-            defer if (!dir_handle_consumed) os.close(dir_handle);
+            defer if (!dir_handle_consumed) windows.CloseHandle(dir_handle);
             const held = await (async self.os_data.table_lock.acquire() catch unreachable);
             defer held.release();
 @@ -1128,7 +1125,7 @@ pub fn Watch(comptime V: type) type {
             var event_buf: [4096]u8 align(@alignOf(windows.FILE_NOTIFY_INFORMATION)) = undefined;
             // TODO handle this error not in the channel but in the setup
-            _ = os.windowsCreateIoCompletionPort(
+            _ = windows.CreateIoCompletionPort(
                 dir_handle,
                 self.channel.loop.os_data.io_port,
                 undefined,
 @@ -1144,10 +1141,10 @@ pub fn Watch(comptime V: type) type {
                     self.channel.loop.beginOneEvent();
                     errdefer self.channel.loop.finishOneEvent();
                     errdefer {
-                        _ = windows.CancelIoEx(dir_handle, &resume_node.base.overlapped);
+                        _ = windows.kernel32.CancelIoEx(dir_handle, &resume_node.base.overlapped);
                     }
                     suspend {
-                        _ = windows.ReadDirectoryChangesW(
+                        _ = windows.kernel32.ReadDirectoryChangesW(
                             dir_handle,
                             &event_buf,
                             @intCast(windows.DWORD, event_buf.len),
 @@ -1163,10 +1160,9 @@ pub fn Watch(comptime V: type) type {
                     }
                 }
                 var bytes_transferred: windows.DWORD = undefined;
-                if (windows.GetOverlappedResult(dir_handle, &resume_node.base.overlapped, &bytes_transferred, windows.FALSE) == 0) {
+                if (windows.kernel32.GetOverlappedResult(dir_handle, &resume_node.base.overlapped, &bytes_transferred, windows.FALSE) == 0) {
-                    const errno = windows.GetLastError();
+                    const err = switch (windows.kernel32.GetLastError()) {
-                    const err = switch (errno) {
+                        else => |err| windows.unexpectedError(err),
-                        else => os.unexpectedErrorWindows(errno),
                     };
                     await (async self.channel.put(err) catch unreachable);
                 } else {
 @@ -1261,7 +1257,7 @@ pub fn Watch(comptime V: type) type {
                             ev = @ptrCast(*os.linux.inotify_event, ptr);
                             if (ev.mask & os.linux.IN_CLOSE_WRITE == os.linux.IN_CLOSE_WRITE) {
                                 const basename_ptr = ptr + @sizeOf(os.linux.inotify_event);
-                                const basename_with_null = basename_ptr[0 .. std.cstr.len(basename_ptr) + 1];
+                                const basename_with_null = basename_ptr[0 .. std.mem.len(u8, basename_ptr) + 1];
                                 const user_value = blk: {
                                     const held = await (async watch.os_data.table_lock.acquire() catch unreachable);
                                     defer held.release();
 @@ -1340,7 +1336,7 @@ async fn testFsWatchCantFail(loop: *Loop, result: *(anyerror!void)) void {
 }
 async fn testFsWatch(loop: *Loop) !void {
-    const file_path = try os.path.join(loop.allocator, [][]const u8{ test_tmp_dir, "file.txt" });
+    const file_path = try std.fs.path.join(loop.allocator, [][]const u8{ test_tmp_dir, "file.txt" });
     defer loop.allocator.free(file_path);
     const contents =
 @@ -1366,7 +1362,7 @@ async fn testFsWatch(loop: *Loop) !void {
     defer if (!ev_consumed) cancel ev;
     // overwrite line 2
-    const fd = try await try async openReadWrite(loop, file_path, os.File.default_mode);
+    const fd = try await try async openReadWrite(loop, file_path, File.default_mode);
     {
         defer os.close(fd);
 @@ -1388,15 +1384,15 @@ async fn testFsWatch(loop: *Loop) !void {
 }
 pub const OutStream = struct {
-    fd: os.FileHandle,
+    fd: fd_t,
     stream: Stream,
     loop: *Loop,
     offset: usize,
-    pub const Error = os.File.WriteError;
+    pub const Error = File.WriteError;
     pub const Stream = event.io.OutStream(Error);
-    pub fn init(loop: *Loop, fd: os.FileHandle, offset: usize) OutStream {
+    pub fn init(loop: *Loop, fd: fd_t, offset: usize) OutStream {
         return OutStream{
             .fd = fd,
             .loop = loop,
 @@ -1414,7 +1410,7 @@ pub const OutStream = struct {
 };
 pub const InStream = struct {
-    fd: os.FileHandle,
+    fd: fd_t,
     stream: Stream,
     loop: *Loop,
     offset: usize,
 @@ -1422,7 +1418,7 @@ pub const InStream = struct {
     pub const Error = PReadVError; // TODO make this not have OutOfMemory
     pub const Stream = event.io.InStream(Error);
-    pub fn init(loop: *Loop, fd: os.FileHandle, offset: usize) InStream {
+    pub fn init(loop: *Loop, fd: fd_t, offset: usize) InStream {
         return InStream{
             .fd = fd,
             .loop = loop,

std/event/group.zig+1-1

...	@@ -155,7 +155,7 @@ async fn testGroup(loop: *Loop) void {	...	@@ -155,7 +155,7 @@ async fn testGroup(loop: *Loop) void {
155	}	155	}
156		156
157	async fn sleepALittle(count: *usize) void {	157	async fn sleepALittle(count: *usize) void {
158	std.os.time.sleep(1 * std.os.time.millisecond);	158	std.time.sleep(1 * std.time.millisecond);
159	_ = @atomicRmw(usize, count, AtomicRmwOp.Add, 1, AtomicOrder.SeqCst);	159	_ = @atomicRmw(usize, count, AtomicRmwOp.Add, 1, AtomicOrder.SeqCst);
160	}	160	}
161		161

std/event/loop.zig+134-134

 @@ -7,9 +7,9 @@ const AtomicRmwOp = builtin.AtomicRmwOp;
 const AtomicOrder = builtin.AtomicOrder;
 const fs = std.event.fs;
 const os = std.os;
-const posix = os.posix;
 const windows = os.windows;
 const maxInt = std.math.maxInt;
+const Thread = std.Thread;
 pub const Loop = struct {
     allocator: *mem.Allocator,
 @@ -17,7 +17,7 @@ pub const Loop = struct {
     os_data: OsData,
     final_resume_node: ResumeNode,
     pending_event_count: usize,
-    extra_threads: []*os.Thread,
+    extra_threads: []*Thread,
     // pre-allocated eventfds. all permanently active.
     // this is how we send promises to be resumed on other threads.
 @@ -32,7 +32,7 @@ pub const Loop = struct {
         overlapped: Overlapped,
         pub const overlapped_init = switch (builtin.os) {
-            builtin.Os.windows => windows.OVERLAPPED{
+            .windows => windows.OVERLAPPED{
                 .Internal = 0,
                 .InternalHigh = 0,
                 .Offset = 0,
 @@ -50,13 +50,13 @@ pub const Loop = struct {
         };
         pub const EventFd = switch (builtin.os) {
-            builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => KEventFd,
+            .macosx, .freebsd, .netbsd => KEventFd,
-            builtin.Os.linux => struct {
+            .linux => struct {
                 base: ResumeNode,
                 epoll_op: u32,
                 eventfd: i32,
             },
-            builtin.Os.windows => struct {
+            .windows => struct {
                 base: ResumeNode,
                 completion_key: usize,
             },
 @@ -65,15 +65,15 @@ pub const Loop = struct {
         const KEventFd = struct {
             base: ResumeNode,
-            kevent: posix.Kevent,
+            kevent: os.Kevent,
         };
         pub const Basic = switch (builtin.os) {
-            builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => KEventBasic,
+            .macosx, .freebsd, .netbsd => KEventBasic,
-            builtin.Os.linux => struct {
+            .linux => struct {
                 base: ResumeNode,
             },
-            builtin.Os.windows => struct {
+            .windows => struct {
                 base: ResumeNode,
             },
             else => @compileError("unsupported OS"),
 @@ -81,7 +81,7 @@ pub const Loop = struct {
         const KEventBasic = struct {
             base: ResumeNode,
-            kev: posix.Kevent,
+            kev: os.Kevent,
         };
     };
 @@ -99,7 +99,7 @@ pub const Loop = struct {
     /// have the correct pointer value.
     pub fn initMultiThreaded(self: *Loop, allocator: *mem.Allocator) !void {
         if (builtin.single_threaded) @compileError("initMultiThreaded unavailable when building in single-threaded mode");
-        const core_count = try os.cpuCount(allocator);
+        const core_count = try Thread.cpuCount();
         return self.initInternal(allocator, core_count);
     }
 @@ -127,7 +127,7 @@ pub const Loop = struct {
         );
         errdefer self.allocator.free(self.eventfd_resume_nodes);
-        self.extra_threads = try self.allocator.alloc(*os.Thread, extra_thread_count);
+        self.extra_threads = try self.allocator.alloc(*Thread, extra_thread_count);
         errdefer self.allocator.free(self.extra_threads);
         try self.initOsData(extra_thread_count);
 @@ -139,15 +139,15 @@ pub const Loop = struct {
         self.allocator.free(self.extra_threads);
     }
-    const InitOsDataError = os.LinuxEpollCreateError || mem.Allocator.Error || os.LinuxEventFdError ||
+    const InitOsDataError = os.EpollCreateError || mem.Allocator.Error || os.EventFdError ||
-        os.SpawnThreadError || os.LinuxEpollCtlError || os.BsdKEventError ||
+        Thread.SpawnError || os.EpollCtlError || os.KEventError ||
-        os.WindowsCreateIoCompletionPortError;
+        windows.CreateIoCompletionPortError;
     const wakeup_bytes = []u8{0x1} ** 8;
     fn initOsData(self: *Loop, extra_thread_count: usize) InitOsDataError!void {
         switch (builtin.os) {
-            builtin.Os.linux => {
+            .linux => {
                 self.os_data.fs_queue = std.atomic.Queue(fs.Request).init();
                 self.os_data.fs_queue_item = 0;
                 // we need another thread for the file system because Linux does not have an async
 @@ -172,32 +172,32 @@ pub const Loop = struct {
                                 .handle = undefined,
                                 .overlapped = ResumeNode.overlapped_init,
                             },
-                            .eventfd = try os.linuxEventFd(1, posix.EFD_CLOEXEC | posix.EFD_NONBLOCK),
+                            .eventfd = try os.eventfd(1, os.EFD_CLOEXEC | os.EFD_NONBLOCK),
-                            .epoll_op = posix.EPOLL_CTL_ADD,
+                            .epoll_op = os.EPOLL_CTL_ADD,
                         },
                         .next = undefined,
                     };
                     self.available_eventfd_resume_nodes.push(eventfd_node);
                 }
-                self.os_data.epollfd = try os.linuxEpollCreate(posix.EPOLL_CLOEXEC);
+                self.os_data.epollfd = try os.epoll_create1(os.EPOLL_CLOEXEC);
                 errdefer os.close(self.os_data.epollfd);
-                self.os_data.final_eventfd = try os.linuxEventFd(0, posix.EFD_CLOEXEC | posix.EFD_NONBLOCK);
+                self.os_data.final_eventfd = try os.eventfd(0, os.EFD_CLOEXEC | os.EFD_NONBLOCK);
                 errdefer os.close(self.os_data.final_eventfd);
-                self.os_data.final_eventfd_event = posix.epoll_event{
+                self.os_data.final_eventfd_event = os.epoll_event{
-                    .events = posix.EPOLLIN,
+                    .events = os.EPOLLIN,
-                    .data = posix.epoll_data{ .ptr = @ptrToInt(&self.final_resume_node) },
+                    .data = os.epoll_data{ .ptr = @ptrToInt(&self.final_resume_node) },
                 };
-                try os.linuxEpollCtl(
+                try os.epoll_ctl(
                     self.os_data.epollfd,
-                    posix.EPOLL_CTL_ADD,
+                    os.EPOLL_CTL_ADD,
                     self.os_data.final_eventfd,
                     &self.os_data.final_eventfd_event,
                 );
-                self.os_data.fs_thread = try os.spawnThread(self, posixFsRun);
+                self.os_data.fs_thread = try Thread.spawn(self, posixFsRun);
                 errdefer {
                     self.posixFsRequest(&self.os_data.fs_end_request);
                     self.os_data.fs_thread.wait();
 @@ -211,21 +211,21 @@ pub const Loop = struct {
                 var extra_thread_index: usize = 0;
                 errdefer {
                     // writing 8 bytes to an eventfd cannot fail
-                    os.posixWrite(self.os_data.final_eventfd, wakeup_bytes) catch unreachable;
+                    os.write(self.os_data.final_eventfd, wakeup_bytes) catch unreachable;
                     while (extra_thread_index != 0) {
                         extra_thread_index -= 1;
                         self.extra_threads[extra_thread_index].wait();
                     }
                 }
                 while (extra_thread_index < extra_thread_count) : (extra_thread_index += 1) {
-                    self.extra_threads[extra_thread_index] = try os.spawnThread(self, workerRun);
+                    self.extra_threads[extra_thread_index] = try Thread.spawn(self, workerRun);
                 }
             },
-            builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {
+            .macosx, .freebsd, .netbsd => {
-                self.os_data.kqfd = try os.bsdKQueue();
+                self.os_data.kqfd = try os.kqueue();
                 errdefer os.close(self.os_data.kqfd);
-                self.os_data.fs_kqfd = try os.bsdKQueue();
+                self.os_data.fs_kqfd = try os.kqueue();
                 errdefer os.close(self.os_data.fs_kqfd);
                 self.os_data.fs_queue = std.atomic.Queue(fs.Request).init();
 @@ -240,7 +240,7 @@ pub const Loop = struct {
                     },
                 };
-                const empty_kevs = ([*]posix.Kevent)(undefined)[0..0];
+                const empty_kevs = ([*]os.Kevent)(undefined)[0..0];
                 for (self.eventfd_resume_nodes) |*eventfd_node, i| {
                     eventfd_node.* = std.atomic.Stack(ResumeNode.EventFd).Node{
 @@ -251,10 +251,10 @@ pub const Loop = struct {
                                 .overlapped = ResumeNode.overlapped_init,
                             },
                             // this one is for sending events
-                            .kevent = posix.Kevent{
+                            .kevent = os.Kevent{
                                 .ident = i,
-                                .filter = posix.EVFILT_USER,
+                                .filter = os.EVFILT_USER,
-                                .flags = posix.EV_CLEAR | posix.EV_ADD | posix.EV_DISABLE,
+                                .flags = os.EV_CLEAR | os.EV_ADD | os.EV_DISABLE,
                                 .fflags = 0,
                                 .data = 0,
                                 .udata = @ptrToInt(&eventfd_node.data.base),
 @@ -263,46 +263,46 @@ pub const Loop = struct {
                         .next = undefined,
                     };
                     self.available_eventfd_resume_nodes.push(eventfd_node);
-                    const kevent_array = (*const [1]posix.Kevent)(&eventfd_node.data.kevent);
+                    const kevent_array = (*const [1]os.Kevent)(&eventfd_node.data.kevent);
-                    _ = try os.bsdKEvent(self.os_data.kqfd, kevent_array, empty_kevs, null);
+                    _ = try os.kevent(self.os_data.kqfd, kevent_array, empty_kevs, null);
-                    eventfd_node.data.kevent.flags = posix.EV_CLEAR | posix.EV_ENABLE;
+                    eventfd_node.data.kevent.flags = os.EV_CLEAR | os.EV_ENABLE;
-                    eventfd_node.data.kevent.fflags = posix.NOTE_TRIGGER;
+                    eventfd_node.data.kevent.fflags = os.NOTE_TRIGGER;
                 }
                 // Pre-add so that we cannot get error.SystemResources
                 // later when we try to activate it.
-                self.os_data.final_kevent = posix.Kevent{
+                self.os_data.final_kevent = os.Kevent{
                     .ident = extra_thread_count,
-                    .filter = posix.EVFILT_USER,
+                    .filter = os.EVFILT_USER,
-                    .flags = posix.EV_ADD | posix.EV_DISABLE,
+                    .flags = os.EV_ADD | os.EV_DISABLE,
                     .fflags = 0,
                     .data = 0,
                     .udata = @ptrToInt(&self.final_resume_node),
                 };
-                const final_kev_arr = (*const [1]posix.Kevent)(&self.os_data.final_kevent);
+                const final_kev_arr = (*const [1]os.Kevent)(&self.os_data.final_kevent);
-                _ = try os.bsdKEvent(self.os_data.kqfd, final_kev_arr, empty_kevs, null);
+                _ = try os.kevent(self.os_data.kqfd, final_kev_arr, empty_kevs, null);
-                self.os_data.final_kevent.flags = posix.EV_ENABLE;
+                self.os_data.final_kevent.flags = os.EV_ENABLE;
-                self.os_data.final_kevent.fflags = posix.NOTE_TRIGGER;
+                self.os_data.final_kevent.fflags = os.NOTE_TRIGGER;
-                self.os_data.fs_kevent_wake = posix.Kevent{
+                self.os_data.fs_kevent_wake = os.Kevent{
                     .ident = 0,
-                    .filter = posix.EVFILT_USER,
+                    .filter = os.EVFILT_USER,
-                    .flags = posix.EV_ADD | posix.EV_ENABLE,
+                    .flags = os.EV_ADD | os.EV_ENABLE,
-                    .fflags = posix.NOTE_TRIGGER,
+                    .fflags = os.NOTE_TRIGGER,
                     .data = 0,
                     .udata = undefined,
                 };
-                self.os_data.fs_kevent_wait = posix.Kevent{
+                self.os_data.fs_kevent_wait = os.Kevent{
                     .ident = 0,
-                    .filter = posix.EVFILT_USER,
+                    .filter = os.EVFILT_USER,
-                    .flags = posix.EV_ADD | posix.EV_CLEAR,
+                    .flags = os.EV_ADD | os.EV_CLEAR,
                     .fflags = 0,
                     .data = 0,
                     .udata = undefined,
                 };
-                self.os_data.fs_thread = try os.spawnThread(self, posixFsRun);
+                self.os_data.fs_thread = try Thread.spawn(self, posixFsRun);
                 errdefer {
                     self.posixFsRequest(&self.os_data.fs_end_request);
                     self.os_data.fs_thread.wait();
 @@ -315,24 +315,24 @@ pub const Loop = struct {
                 var extra_thread_index: usize = 0;
                 errdefer {
-                    _ = os.bsdKEvent(self.os_data.kqfd, final_kev_arr, empty_kevs, null) catch unreachable;
+                    _ = os.kevent(self.os_data.kqfd, final_kev_arr, empty_kevs, null) catch unreachable;
                     while (extra_thread_index != 0) {
                         extra_thread_index -= 1;
                         self.extra_threads[extra_thread_index].wait();
                     }
                 }
                 while (extra_thread_index < extra_thread_count) : (extra_thread_index += 1) {
-                    self.extra_threads[extra_thread_index] = try os.spawnThread(self, workerRun);
+                    self.extra_threads[extra_thread_index] = try Thread.spawn(self, workerRun);
                 }
             },
-            builtin.Os.windows => {
+            .windows => {
-                self.os_data.io_port = try os.windowsCreateIoCompletionPort(
+                self.os_data.io_port = try windows.CreateIoCompletionPort(
                     windows.INVALID_HANDLE_VALUE,
                     null,
                     undefined,
                     maxInt(windows.DWORD),
                 );
-                errdefer os.close(self.os_data.io_port);
+                errdefer windows.CloseHandle(self.os_data.io_port);
                 for (self.eventfd_resume_nodes) |*eventfd_node, i| {
                     eventfd_node.* = std.atomic.Stack(ResumeNode.EventFd).Node{
 @@ -361,7 +361,7 @@ pub const Loop = struct {
                     while (i < extra_thread_index) : (i += 1) {
                         while (true) {
                             const overlapped = &self.final_resume_node.overlapped;
-                            os.windowsPostQueuedCompletionStatus(self.os_data.io_port, undefined, undefined, overlapped) catch continue;
+                            windows.PostQueuedCompletionStatus(self.os_data.io_port, undefined, undefined, overlapped) catch continue;
                             break;
                         }
                     }
 @@ -371,7 +371,7 @@ pub const Loop = struct {
                     }
                 }
                 while (extra_thread_index < extra_thread_count) : (extra_thread_index += 1) {
-                    self.extra_threads[extra_thread_index] = try os.spawnThread(self, workerRun);
+                    self.extra_threads[extra_thread_index] = try Thread.spawn(self, workerRun);
                 }
             },
             else => {},
 @@ -380,18 +380,18 @@ pub const Loop = struct {
     fn deinitOsData(self: *Loop) void {
         switch (builtin.os) {
-            builtin.Os.linux => {
+            .linux => {
                 os.close(self.os_data.final_eventfd);
                 while (self.available_eventfd_resume_nodes.pop()) |node| os.close(node.data.eventfd);
                 os.close(self.os_data.epollfd);
                 self.allocator.free(self.eventfd_resume_nodes);
             },
-            builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {
+            .macosx, .freebsd, .netbsd => {
                 os.close(self.os_data.kqfd);
                 os.close(self.os_data.fs_kqfd);
             },
-            builtin.Os.windows => {
+            .windows => {
-                os.close(self.os_data.io_port);
+                windows.CloseHandle(self.os_data.io_port);
             },
             else => {},
         }
 @@ -400,28 +400,28 @@ pub const Loop = struct {
     /// resume_node must live longer than the promise that it holds a reference to.
     /// flags must contain EPOLLET
     pub fn linuxAddFd(self: *Loop, fd: i32, resume_node: *ResumeNode, flags: u32) !void {
-        assert(flags & posix.EPOLLET == posix.EPOLLET);
+        assert(flags & os.EPOLLET == os.EPOLLET);
         self.beginOneEvent();
         errdefer self.finishOneEvent();
         try self.linuxModFd(
             fd,
-            posix.EPOLL_CTL_ADD,
+            os.EPOLL_CTL_ADD,
             flags,
             resume_node,
         );
     }
     pub fn linuxModFd(self: *Loop, fd: i32, op: u32, flags: u32, resume_node: *ResumeNode) !void {
-        assert(flags & posix.EPOLLET == posix.EPOLLET);
+        assert(flags & os.EPOLLET == os.EPOLLET);
         var ev = os.linux.epoll_event{
             .events = flags,
             .data = os.linux.epoll_data{ .ptr = @ptrToInt(resume_node) },
         };
-        try os.linuxEpollCtl(self.os_data.epollfd, op, fd, &ev);
+        try os.epoll_ctl(self.os_data.epollfd, op, fd, &ev);
     }
     pub fn linuxRemoveFd(self: *Loop, fd: i32) void {
-        os.linuxEpollCtl(self.os_data.epollfd, os.linux.EPOLL_CTL_DEL, fd, undefined) catch {};
+        os.epoll_ctl(self.os_data.epollfd, os.linux.EPOLL_CTL_DEL, fd, undefined) catch {};
         self.finishOneEvent();
     }
 @@ -440,7 +440,7 @@ pub const Loop = struct {
         }
     }
-    pub async fn bsdWaitKev(self: *Loop, ident: usize, filter: i16, fflags: u32) !posix.Kevent {
+    pub async fn bsdWaitKev(self: *Loop, ident: usize, filter: i16, fflags: u32) !os.Kevent {
         // TODO #1194
         suspend {
             resume @handle();
 @@ -464,31 +464,31 @@ pub const Loop = struct {
     pub fn bsdAddKev(self: *Loop, resume_node: *ResumeNode.Basic, ident: usize, filter: i16, fflags: u32) !void {
         self.beginOneEvent();
         errdefer self.finishOneEvent();
-        var kev = posix.Kevent{
+        var kev = os.Kevent{
             .ident = ident,
             .filter = filter,
-            .flags = posix.EV_ADD | posix.EV_ENABLE | posix.EV_CLEAR,
+            .flags = os.EV_ADD | os.EV_ENABLE | os.EV_CLEAR,
             .fflags = fflags,
             .data = 0,
             .udata = @ptrToInt(&resume_node.base),
         };
-        const kevent_array = (*const [1]posix.Kevent)(&kev);
+        const kevent_array = (*const [1]os.Kevent)(&kev);
-        const empty_kevs = ([*]posix.Kevent)(undefined)[0..0];
+        const empty_kevs = ([*]os.Kevent)(undefined)[0..0];
-        _ = try os.bsdKEvent(self.os_data.kqfd, kevent_array, empty_kevs, null);
+        _ = try os.kevent(self.os_data.kqfd, kevent_array, empty_kevs, null);
     }
     pub fn bsdRemoveKev(self: *Loop, ident: usize, filter: i16) void {
-        var kev = posix.Kevent{
+        var kev = os.Kevent{
             .ident = ident,
             .filter = filter,
-            .flags = posix.EV_DELETE,
+            .flags = os.EV_DELETE,
             .fflags = 0,
             .data = 0,
             .udata = 0,
         };
-        const kevent_array = (*const [1]posix.Kevent)(&kev);
+        const kevent_array = (*const [1]os.Kevent)(&kev);
-        const empty_kevs = ([*]posix.Kevent)(undefined)[0..0];
+        const empty_kevs = ([*]os.Kevent)(undefined)[0..0];
-        _ = os.bsdKEvent(self.os_data.kqfd, kevent_array, empty_kevs, null) catch undefined;
+        _ = os.kevent(self.os_data.kqfd, kevent_array, empty_kevs, null) catch undefined;
         self.finishOneEvent();
     }
 @@ -501,18 +501,18 @@ pub const Loop = struct {
             const eventfd_node = &resume_stack_node.data;
             eventfd_node.base.handle = next_tick_node.data;
             switch (builtin.os) {
-                builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {
+                .macosx, .freebsd, .netbsd => {
-                    const kevent_array = (*const [1]posix.Kevent)(&eventfd_node.kevent);
+                    const kevent_array = (*const [1]os.Kevent)(&eventfd_node.kevent);
-                    const empty_kevs = ([*]posix.Kevent)(undefined)[0..0];
+                    const empty_kevs = ([*]os.Kevent)(undefined)[0..0];
-                    _ = os.bsdKEvent(self.os_data.kqfd, kevent_array, empty_kevs, null) catch {
+                    _ = os.kevent(self.os_data.kqfd, kevent_array, empty_kevs, null) catch {
                         self.next_tick_queue.unget(next_tick_node);
                         self.available_eventfd_resume_nodes.push(resume_stack_node);
                         return;
                     };
                 },
-                builtin.Os.linux => {
+                .linux => {
                     // the pending count is already accounted for
-                    const epoll_events = posix.EPOLLONESHOT | os.linux.EPOLLIN | os.linux.EPOLLOUT |
+                    const epoll_events = os.EPOLLONESHOT | os.linux.EPOLLIN | os.linux.EPOLLOUT |
                         os.linux.EPOLLET;
                     self.linuxModFd(
                         eventfd_node.eventfd,
 @@ -525,8 +525,8 @@ pub const Loop = struct {
                         return;
                     };
                 },
-                builtin.Os.windows => {
+                .windows => {
-                    os.windowsPostQueuedCompletionStatus(
+                    windows.PostQueuedCompletionStatus(
                         self.os_data.io_port,
                         undefined,
                         undefined,
 @@ -623,26 +623,26 @@ pub const Loop = struct {
         if (prev == 1) {
             // cause all the threads to stop
             switch (builtin.os) {
-                builtin.Os.linux => {
+                .linux => {
                     self.posixFsRequest(&self.os_data.fs_end_request);
                     // writing 8 bytes to an eventfd cannot fail
-                    os.posixWrite(self.os_data.final_eventfd, wakeup_bytes) catch unreachable;
+                    os.write(self.os_data.final_eventfd, wakeup_bytes) catch unreachable;
                     return;
                 },
-                builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {
+                .macosx, .freebsd, .netbsd => {
                     self.posixFsRequest(&self.os_data.fs_end_request);
-                    const final_kevent = (*const [1]posix.Kevent)(&self.os_data.final_kevent);
+                    const final_kevent = (*const [1]os.Kevent)(&self.os_data.final_kevent);
-                    const empty_kevs = ([*]posix.Kevent)(undefined)[0..0];
+                    const empty_kevs = ([*]os.Kevent)(undefined)[0..0];
                     // cannot fail because we already added it and this just enables it
-                    _ = os.bsdKEvent(self.os_data.kqfd, final_kevent, empty_kevs, null) catch unreachable;
+                    _ = os.kevent(self.os_data.kqfd, final_kevent, empty_kevs, null) catch unreachable;
                     return;
                 },
-                builtin.Os.windows => {
+                .windows => {
                     var i: usize = 0;
                     while (i < self.extra_threads.len + 1) : (i += 1) {
                         while (true) {
                             const overlapped = &self.final_resume_node.overlapped;
-                            os.windowsPostQueuedCompletionStatus(self.os_data.io_port, undefined, undefined, overlapped) catch continue;
+                            windows.PostQueuedCompletionStatus(self.os_data.io_port, undefined, undefined, overlapped) catch continue;
                             break;
                         }
                     }
 @@ -663,10 +663,10 @@ pub const Loop = struct {
             }
             switch (builtin.os) {
-                builtin.Os.linux => {
+                .linux => {
                     // only process 1 event so we don't steal from other threads
                     var events: [1]os.linux.epoll_event = undefined;
-                    const count = os.linuxEpollWait(self.os_data.epollfd, events[0..], -1);
+                    const count = os.epoll_wait(self.os_data.epollfd, events[0..], -1);
                     for (events[0..count]) |ev| {
                         const resume_node = @intToPtr(*ResumeNode, ev.data.ptr);
                         const handle = resume_node.handle;
 @@ -676,7 +676,7 @@ pub const Loop = struct {
                             ResumeNode.Id.Stop => return,
                             ResumeNode.Id.EventFd => {
                                 const event_fd_node = @fieldParentPtr(ResumeNode.EventFd, "base", resume_node);
-                                event_fd_node.epoll_op = posix.EPOLL_CTL_MOD;
+                                event_fd_node.epoll_op = os.EPOLL_CTL_MOD;
                                 const stack_node = @fieldParentPtr(std.atomic.Stack(ResumeNode.EventFd).Node, "data", event_fd_node);
                                 self.available_eventfd_resume_nodes.push(stack_node);
                             },
 @@ -687,10 +687,10 @@ pub const Loop = struct {
                         }
                     }
                 },
-                builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {
+                .macosx, .freebsd, .netbsd => {
-                    var eventlist: [1]posix.Kevent = undefined;
+                    var eventlist: [1]os.Kevent = undefined;
-                    const empty_kevs = ([*]posix.Kevent)(undefined)[0..0];
+                    const empty_kevs = ([*]os.Kevent)(undefined)[0..0];
-                    const count = os.bsdKEvent(self.os_data.kqfd, empty_kevs, eventlist[0..], null) catch unreachable;
+                    const count = os.kevent(self.os_data.kqfd, empty_kevs, eventlist[0..], null) catch unreachable;
                     for (eventlist[0..count]) |ev| {
                         const resume_node = @intToPtr(*ResumeNode, ev.udata);
                         const handle = resume_node.handle;
 @@ -713,16 +713,16 @@ pub const Loop = struct {
                         }
                     }
                 },
-                builtin.Os.windows => {
+                .windows => {
                     var completion_key: usize = undefined;
                     const overlapped = while (true) {
                         var nbytes: windows.DWORD = undefined;
                         var overlapped: ?*windows.OVERLAPPED = undefined;
-                        switch (os.windowsGetQueuedCompletionStatus(self.os_data.io_port, &nbytes, &completion_key, &overlapped, windows.INFINITE)) {
+                        switch (windows.GetQueuedCompletionStatus(self.os_data.io_port, &nbytes, &completion_key, &overlapped, windows.INFINITE)) {
-                            os.WindowsWaitResult.Aborted => return,
+                            .Aborted => return,
-                            os.WindowsWaitResult.Normal => {},
+                            .Normal => {},
-                            os.WindowsWaitResult.EOF => {},
+                            .EOF => {},
-                            os.WindowsWaitResult.Cancelled => continue,
+                            .Cancelled => continue,
                         }
                         if (overlapped) |o| break o;
                     } else unreachable; // TODO else unreachable should not be necessary
 @@ -751,16 +751,16 @@ pub const Loop = struct {
         self.os_data.fs_queue.put(request_node);
         switch (builtin.os) {
             builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {
-                const fs_kevs = (*const [1]posix.Kevent)(&self.os_data.fs_kevent_wake);
+                const fs_kevs = (*const [1]os.Kevent)(&self.os_data.fs_kevent_wake);
-                const empty_kevs = ([*]posix.Kevent)(undefined)[0..0];
+                const empty_kevs = ([*]os.Kevent)(undefined)[0..0];
-                _ = os.bsdKEvent(self.os_data.fs_kqfd, fs_kevs, empty_kevs, null) catch unreachable;
+                _ = os.kevent(self.os_data.fs_kqfd, fs_kevs, empty_kevs, null) catch unreachable;
             },
             builtin.Os.linux => {
                 _ = @atomicRmw(i32, &self.os_data.fs_queue_item, AtomicRmwOp.Xchg, 1, AtomicOrder.SeqCst);
                 const rc = os.linux.futex_wake(&self.os_data.fs_queue_item, os.linux.FUTEX_WAKE, 1);
                 switch (os.linux.getErrno(rc)) {
                     0 => {},
-                    posix.EINVAL => unreachable,
+                    os.EINVAL => unreachable,
                     else => unreachable,
                 }
             },
 @@ -783,24 +783,24 @@ pub const Loop = struct {
                 switch (node.data.msg) {
                     @TagType(fs.Request.Msg).End => return,
                     @TagType(fs.Request.Msg).PWriteV => |*msg| {
-                        msg.result = os.posix_pwritev(msg.fd, msg.iov.ptr, msg.iov.len, msg.offset);
+                        msg.result = os.pwritev(msg.fd, msg.iov, msg.offset);
                     },
                     @TagType(fs.Request.Msg).PReadV => |*msg| {
-                        msg.result = os.posix_preadv(msg.fd, msg.iov.ptr, msg.iov.len, msg.offset);
+                        msg.result = os.preadv(msg.fd, msg.iov, msg.offset);
                     },
                     @TagType(fs.Request.Msg).Open => |*msg| {
-                        msg.result = os.posixOpenC(msg.path.ptr, msg.flags, msg.mode);
+                        msg.result = os.openC(msg.path.ptr, msg.flags, msg.mode);
                     },
                     @TagType(fs.Request.Msg).Close => |*msg| os.close(msg.fd),
                     @TagType(fs.Request.Msg).WriteFile => |*msg| blk: {
-                        const flags = posix.O_LARGEFILE | posix.O_WRONLY | posix.O_CREAT |
+                        const flags = os.O_LARGEFILE | os.O_WRONLY | os.O_CREAT |
-                            posix.O_CLOEXEC | posix.O_TRUNC;
+                            os.O_CLOEXEC | os.O_TRUNC;
-                        const fd = os.posixOpenC(msg.path.ptr, flags, msg.mode) catch |err| {
+                        const fd = os.openC(msg.path.ptr, flags, msg.mode) catch |err| {
                             msg.result = err;
                             break :blk;
                         };
                         defer os.close(fd);
-                        msg.result = os.posixWrite(fd, msg.contents);
+                        msg.result = os.write(fd, msg.contents);
                     },
                 }
                 switch (node.data.finish) {
 @@ -816,14 +816,14 @@ pub const Loop = struct {
                 builtin.Os.linux => {
                     const rc = os.linux.futex_wait(&self.os_data.fs_queue_item, os.linux.FUTEX_WAIT, 0, null);
                     switch (os.linux.getErrno(rc)) {
-                        0, posix.EINTR, posix.EAGAIN => continue,
+                        0, os.EINTR, os.EAGAIN => continue,
                         else => unreachable,
                     }
                 },
                 builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {
-                    const fs_kevs = (*const [1]posix.Kevent)(&self.os_data.fs_kevent_wait);
+                    const fs_kevs = (*const [1]os.Kevent)(&self.os_data.fs_kevent_wait);
-                    var out_kevs: [1]posix.Kevent = undefined;
+                    var out_kevs: [1]os.Kevent = undefined;
-                    _ = os.bsdKEvent(self.os_data.fs_kqfd, fs_kevs, out_kevs[0..], null) catch unreachable;
+                    _ = os.kevent(self.os_data.fs_kqfd, fs_kevs, out_kevs[0..], null) catch unreachable;
                 },
                 else => @compileError("Unsupported OS"),
             }
 @@ -831,9 +831,9 @@ pub const Loop = struct {
     }
     const OsData = switch (builtin.os) {
-        builtin.Os.linux => LinuxOsData,
+        .linux => LinuxOsData,
-        builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => KEventData,
+        .macosx, .freebsd, .netbsd => KEventData,
-        builtin.Os.windows => struct {
+        .windows => struct {
             io_port: windows.HANDLE,
             extra_thread_count: usize,
         },
 @@ -842,10 +842,10 @@ pub const Loop = struct {
     const KEventData = struct {
         kqfd: i32,
-        final_kevent: posix.Kevent,
+        final_kevent: os.Kevent,
-        fs_kevent_wake: posix.Kevent,
+        fs_kevent_wake: os.Kevent,
-        fs_kevent_wait: posix.Kevent,
+        fs_kevent_wait: os.Kevent,
-        fs_thread: *os.Thread,
+        fs_thread: *Thread,
         fs_kqfd: i32,
         fs_queue: std.atomic.Queue(fs.Request),
         fs_end_request: fs.RequestNode,
 @@ -855,7 +855,7 @@ pub const Loop = struct {
         epollfd: i32,
         final_eventfd: i32,
         final_eventfd_event: os.linux.epoll_event,
-        fs_thread: *os.Thread,
+        fs_thread: *Thread,
         fs_queue_item: i32,
         fs_queue: std.atomic.Queue(fs.Request),
         fs_end_request: fs.RequestNode,

std/event/net.zig+81-87

 @@ -4,11 +4,12 @@ const testing = std.testing;
 const event = std.event;
 const mem = std.mem;
 const os = std.os;
-const posix = os.posix;
 const Loop = std.event.Loop;
+const File = std.fs.File;
+const fd_t = os.fd_t;
 pub const Server = struct {
-    handleRequestFn: async<*mem.Allocator> fn (*Server, *const std.net.Address, os.File) void,
+    handleRequestFn: async<*mem.Allocator> fn (*Server, *const std.net.Address, File) void,
     loop: *Loop,
     sockfd: ?i32,
 @@ -40,30 +41,33 @@ pub const Server = struct {
     pub fn listen(
         self: *Server,
         address: *const std.net.Address,
-        handleRequestFn: async<*mem.Allocator> fn (*Server, *const std.net.Address, os.File) void,
+        handleRequestFn: async<*mem.Allocator> fn (*Server, *const std.net.Address, File) void,
     ) !void {
         self.handleRequestFn = handleRequestFn;
-        const sockfd = try os.posixSocket(posix.AF_INET, posix.SOCK_STREAM | posix.SOCK_CLOEXEC | posix.SOCK_NONBLOCK, posix.PROTO_tcp);
+        const sockfd = try os.socket(os.AF_INET, os.SOCK_STREAM | os.SOCK_CLOEXEC | os.SOCK_NONBLOCK, os.PROTO_tcp);
         errdefer os.close(sockfd);
         self.sockfd = sockfd;
-        try os.posixBind(sockfd, &address.os_addr);
+        try os.bind(sockfd, &address.os_addr);
-        try os.posixListen(sockfd, posix.SOMAXCONN);
+        try os.listen(sockfd, os.SOMAXCONN);
-        self.listen_address = std.net.Address.initPosix(try os.posixGetSockName(sockfd));
+        self.listen_address = std.net.Address.initPosix(try os.getsockname(sockfd));
         self.accept_coro = try async<self.loop.allocator> Server.handler(self);
         errdefer cancel self.accept_coro.?;
         self.listen_resume_node.handle = self.accept_coro.?;
-        try self.loop.linuxAddFd(sockfd, &self.listen_resume_node, posix.EPOLLIN | posix.EPOLLOUT | posix.EPOLLET);
+        try self.loop.linuxAddFd(sockfd, &self.listen_resume_node, os.EPOLLIN | os.EPOLLOUT | os.EPOLLET);
         errdefer self.loop.removeFd(sockfd);
     }
     /// Stop listening
     pub fn close(self: *Server) void {
         self.loop.linuxRemoveFd(self.sockfd.?);
-        os.close(self.sockfd.?);
+        if (self.sockfd) |fd| {
+            os.close(fd);
+            self.sockfd = null;
+        }
     }
     pub fn deinit(self: *Server) void {
 @@ -75,13 +79,13 @@ pub const Server = struct {
         while (true) {
             var accepted_addr: std.net.Address = undefined;
             // TODO just inline the following function here and don't expose it as posixAsyncAccept
-            if (os.posixAsyncAccept(self.sockfd.?, &accepted_addr.os_addr, posix.SOCK_NONBLOCK | posix.SOCK_CLOEXEC)) |accepted_fd| {
+            if (os.accept4_async(self.sockfd.?, &accepted_addr.os_addr, os.SOCK_NONBLOCK | os.SOCK_CLOEXEC)) |accepted_fd| {
                 if (accepted_fd == -1) {
                     // would block
                     suspend; // we will get resumed by epoll_wait in the event loop
                     continue;
                 }
-                var socket = os.File.openHandle(accepted_fd);
+                var socket = File.openHandle(accepted_fd);
                 _ = async<self.loop.allocator> self.handleRequestFn(self, &accepted_addr, socket) catch |err| switch (err) {
                     error.OutOfMemory => {
                         socket.close();
 @@ -89,14 +93,7 @@ pub const Server = struct {
                     },
                 };
             } else |err| switch (err) {
-                error.ProcessFdQuotaExceeded => {
+                error.ProcessFdQuotaExceeded => @panic("TODO handle this error"),
-                    errdefer os.emfile_promise_queue.remove(&self.waiting_for_emfile_node);
-                    suspend {
-                        self.waiting_for_emfile_node = PromiseNode.init(@handle());
-                        os.emfile_promise_queue.append(&self.waiting_for_emfile_node);
-                    }
-                    continue;
-                },
                 error.ConnectionAborted => continue,
                 error.FileDescriptorNotASocket => unreachable,
 @@ -111,24 +108,24 @@ pub const Server = struct {
 };
 pub async fn connectUnixSocket(loop: *Loop, path: []const u8) !i32 {
-    const sockfd = try os.posixSocket(
+    const sockfd = try os.socket(
-        posix.AF_UNIX,
+        os.AF_UNIX,
-        posix.SOCK_STREAM | posix.SOCK_CLOEXEC | posix.SOCK_NONBLOCK,
+        os.SOCK_STREAM | os.SOCK_CLOEXEC | os.SOCK_NONBLOCK,
         0,
     );
     errdefer os.close(sockfd);
-    var sock_addr = posix.sockaddr_un{
+    var sock_addr = os.sockaddr_un{
-        .family = posix.AF_UNIX,
+        .family = os.AF_UNIX,
         .path = undefined,
     };
     if (path.len > @typeOf(sock_addr.path).len) return error.NameTooLong;
     mem.copy(u8, sock_addr.path[0..], path);
-    const size = @intCast(u32, @sizeOf(posix.sa_family_t) + path.len);
+    const size = @intCast(u32, @sizeOf(os.sa_family_t) + path.len);
-    try os.posixConnectAsync(sockfd, &sock_addr, size);
+    try os.connect_async(sockfd, &sock_addr, size);
-    try await try async loop.linuxWaitFd(sockfd, posix.EPOLLIN | posix.EPOLLOUT | posix.EPOLLET);
+    try await try async loop.linuxWaitFd(sockfd, os.EPOLLIN | os.EPOLLOUT | os.EPOLLET);
-    try os.posixGetSockOptConnectError(sockfd);
+    try os.getsockoptError(sockfd);
     return sockfd;
 }
 @@ -146,51 +143,49 @@ pub const ReadError = error{
 };
 /// returns number of bytes read. 0 means EOF.
-pub async fn read(loop: *std.event.Loop, fd: os.FileHandle, buffer: []u8) ReadError!usize {
+pub async fn read(loop: *std.event.Loop, fd: fd_t, buffer: []u8) ReadError!usize {
-    const iov = posix.iovec{
+    const iov = os.iovec{
         .iov_base = buffer.ptr,
         .iov_len = buffer.len,
     };
-    const iovs: *const [1]posix.iovec = &iov;
+    const iovs: *const [1]os.iovec = &iov;
     return await (async readvPosix(loop, fd, iovs, 1) catch unreachable);
 }
 pub const WriteError = error{};
-pub async fn write(loop: *std.event.Loop, fd: os.FileHandle, buffer: []const u8) WriteError!void {
+pub async fn write(loop: *std.event.Loop, fd: fd_t, buffer: []const u8) WriteError!void {
-    const iov = posix.iovec_const{
+    const iov = os.iovec_const{
         .iov_base = buffer.ptr,
         .iov_len = buffer.len,
     };
-    const iovs: *const [1]posix.iovec_const = &iov;
+    const iovs: *const [1]os.iovec_const = &iov;
     return await (async writevPosix(loop, fd, iovs, 1) catch unreachable);
 }
-pub async fn writevPosix(loop: *Loop, fd: i32, iov: [*]const posix.iovec_const, count: usize) !void {
+pub async fn writevPosix(loop: *Loop, fd: i32, iov: [*]const os.iovec_const, count: usize) !void {
     while (true) {
         switch (builtin.os) {
-            builtin.Os.macosx, builtin.Os.linux => {
+            .macosx, .linux => {
-                const rc = posix.writev(fd, iov, count);
+                switch (os.errno(os.system.writev(fd, iov, count))) {
-                const err = posix.getErrno(rc);
-                switch (err) {
                     0 => return,
-                    posix.EINTR => continue,
+                    os.EINTR => continue,
-                    posix.ESPIPE => unreachable,
+                    os.ESPIPE => unreachable,
-                    posix.EINVAL => unreachable,
+                    os.EINVAL => unreachable,
-                    posix.EFAULT => unreachable,
+                    os.EFAULT => unreachable,
-                    posix.EAGAIN => {
+                    os.EAGAIN => {
-                        try await (async loop.linuxWaitFd(fd, posix.EPOLLET | posix.EPOLLOUT) catch unreachable);
+                        try await (async loop.linuxWaitFd(fd, os.EPOLLET | os.EPOLLOUT) catch unreachable);
                         continue;
                     },
-                    posix.EBADF => unreachable, // always a race condition
+                    os.EBADF => unreachable, // always a race condition
-                    posix.EDESTADDRREQ => unreachable, // connect was never called
+                    os.EDESTADDRREQ => unreachable, // connect was never called
-                    posix.EDQUOT => unreachable,
+                    os.EDQUOT => unreachable,
-                    posix.EFBIG => unreachable,
+                    os.EFBIG => unreachable,
-                    posix.EIO => return error.InputOutput,
+                    os.EIO => return error.InputOutput,
-                    posix.ENOSPC => unreachable,
+                    os.ENOSPC => unreachable,
-                    posix.EPERM => return error.AccessDenied,
+                    os.EPERM => return error.AccessDenied,
-                    posix.EPIPE => unreachable,
+                    os.EPIPE => unreachable,
-                    else => return os.unexpectedErrorPosix(err),
+                    else => |err| return os.unexpectedErrno(err),
                 }
             },
             else => @compileError("Unsupported OS"),
 @@ -199,27 +194,26 @@ pub async fn writevPosix(loop: *Loop, fd: i32, iov: [*]const posix.iovec_const,
 }
 /// returns number of bytes read. 0 means EOF.
-pub async fn readvPosix(loop: *std.event.Loop, fd: i32, iov: [*]posix.iovec, count: usize) !usize {
+pub async fn readvPosix(loop: *std.event.Loop, fd: i32, iov: [*]os.iovec, count: usize) !usize {
     while (true) {
         switch (builtin.os) {
             builtin.Os.linux, builtin.Os.freebsd, builtin.Os.macosx => {
-                const rc = posix.readv(fd, iov, count);
+                const rc = os.system.readv(fd, iov, count);
-                const err = posix.getErrno(rc);
+                switch (os.errno(rc)) {
-                switch (err) {
                     0 => return rc,
-                    posix.EINTR => continue,
+                    os.EINTR => continue,
-                    posix.EINVAL => unreachable,
+                    os.EINVAL => unreachable,
-                    posix.EFAULT => unreachable,
+                    os.EFAULT => unreachable,
-                    posix.EAGAIN => {
+                    os.EAGAIN => {
-                        try await (async loop.linuxWaitFd(fd, posix.EPOLLET | posix.EPOLLIN) catch unreachable);
+                        try await (async loop.linuxWaitFd(fd, os.EPOLLET | os.EPOLLIN) catch unreachable);
                         continue;
                     },
-                    posix.EBADF => unreachable, // always a race condition
+                    os.EBADF => unreachable, // always a race condition
-                    posix.EIO => return error.InputOutput,
+                    os.EIO => return error.InputOutput,
-                    posix.EISDIR => unreachable,
+                    os.EISDIR => unreachable,
-                    posix.ENOBUFS => return error.SystemResources,
+                    os.ENOBUFS => return error.SystemResources,
-                    posix.ENOMEM => return error.SystemResources,
+                    os.ENOMEM => return error.SystemResources,
-                    else => return os.unexpectedErrorPosix(err),
+                    else => |err| return os.unexpectedErrno(err),
                 }
             },
             else => @compileError("Unsupported OS"),
 @@ -227,12 +221,12 @@ pub async fn readvPosix(loop: *std.event.Loop, fd: i32, iov: [*]posix.iovec, cou
     }
 }
-pub async fn writev(loop: *Loop, fd: os.FileHandle, data: []const []const u8) !void {
+pub async fn writev(loop: *Loop, fd: fd_t, data: []const []const u8) !void {
-    const iovecs = try loop.allocator.alloc(os.posix.iovec_const, data.len);
+    const iovecs = try loop.allocator.alloc(os.iovec_const, data.len);
     defer loop.allocator.free(iovecs);
     for (data) |buf, i| {
-        iovecs[i] = os.posix.iovec_const{
+        iovecs[i] = os.iovec_const{
             .iov_base = buf.ptr,
             .iov_len = buf.len,
         };
 @@ -241,12 +235,12 @@ pub async fn writev(loop: *Loop, fd: os.FileHandle, data: []const []const u8) !v
     return await (async writevPosix(loop, fd, iovecs.ptr, data.len) catch unreachable);
 }
-pub async fn readv(loop: *Loop, fd: os.FileHandle, data: []const []u8) !usize {
+pub async fn readv(loop: *Loop, fd: fd_t, data: []const []u8) !usize {
-    const iovecs = try loop.allocator.alloc(os.posix.iovec, data.len);
+    const iovecs = try loop.allocator.alloc(os.iovec, data.len);
     defer loop.allocator.free(iovecs);
     for (data) |buf, i| {
-        iovecs[i] = os.posix.iovec{
+        iovecs[i] = os.iovec{
             .iov_base = buf.ptr,
             .iov_len = buf.len,
         };
 @@ -255,17 +249,17 @@ pub async fn readv(loop: *Loop, fd: os.FileHandle, data: []const []u8) !usize {
     return await (async readvPosix(loop, fd, iovecs.ptr, data.len) catch unreachable);
 }
-pub async fn connect(loop: *Loop, _address: *const std.net.Address) !os.File {
+pub async fn connect(loop: *Loop, _address: *const std.net.Address) !File {
     var address = _address.*; // TODO https://github.com/ziglang/zig/issues/1592
-    const sockfd = try os.posixSocket(posix.AF_INET, posix.SOCK_STREAM | posix.SOCK_CLOEXEC | posix.SOCK_NONBLOCK, posix.PROTO_tcp);
+    const sockfd = try os.socket(os.AF_INET, os.SOCK_STREAM | os.SOCK_CLOEXEC | os.SOCK_NONBLOCK, os.PROTO_tcp);
     errdefer os.close(sockfd);
-    try os.posixConnectAsync(sockfd, &address.os_addr, @sizeOf(posix.sockaddr_in));
+    try os.connect_async(sockfd, &address.os_addr, @sizeOf(os.sockaddr_in));
-    try await try async loop.linuxWaitFd(sockfd, posix.EPOLLIN | posix.EPOLLOUT | posix.EPOLLET);
+    try await try async loop.linuxWaitFd(sockfd, os.EPOLLIN | os.EPOLLOUT | os.EPOLLET);
-    try os.posixGetSockOptConnectError(sockfd);
+    try os.getsockoptError(sockfd);
-    return os.File.openHandle(sockfd);
+    return File.openHandle(sockfd);
 }
 test "listen on a port, send bytes, receive bytes" {
 @@ -281,7 +275,7 @@ test "listen on a port, send bytes, receive bytes" {
         tcp_server: Server,
         const Self = @This();
-        async<*mem.Allocator> fn handler(tcp_server: *Server, _addr: *const std.net.Address, _socket: os.File) void {
+        async<*mem.Allocator> fn handler(tcp_server: *Server, _addr: *const std.net.Address, _socket: File) void {
             const self = @fieldParentPtr(Self, "tcp_server", tcp_server);
             var socket = _socket; // TODO https://github.com/ziglang/zig/issues/1592
             defer socket.close();
 @@ -294,7 +288,7 @@ test "listen on a port, send bytes, receive bytes" {
                 cancel @handle();
             }
         }
-        async fn errorableHandler(self: *Self, _addr: *const std.net.Address, _socket: os.File) !void {
+        async fn errorableHandler(self: *Self, _addr: *const std.net.Address, _socket: File) !void {
             const addr = _addr.*; // TODO https://github.com/ziglang/zig/issues/1592
             var socket = _socket; // TODO https://github.com/ziglang/zig/issues/1592
 @@ -331,14 +325,14 @@ async fn doAsyncTest(loop: *Loop, address: *const std.net.Address, server: *Serv
 }
 pub const OutStream = struct {
-    fd: os.FileHandle,
+    fd: fd_t,
     stream: Stream,
     loop: *Loop,
     pub const Error = WriteError;
     pub const Stream = event.io.OutStream(Error);
-    pub fn init(loop: *Loop, fd: os.FileHandle) OutStream {
+    pub fn init(loop: *Loop, fd: fd_t) OutStream {
         return OutStream{
             .fd = fd,
             .loop = loop,
 @@ -353,14 +347,14 @@ pub const OutStream = struct {
 };
 pub const InStream = struct {
-    fd: os.FileHandle,
+    fd: fd_t,
     stream: Stream,
     loop: *Loop,
     pub const Error = ReadError;
     pub const Stream = event.io.InStream(Error);
-    pub fn init(loop: *Loop, fd: os.FileHandle) InStream {
+    pub fn init(loop: *Loop, fd: fd_t) InStream {
         return InStream{
             .fd = fd,
             .loop = loop,

std/event/rwlock.zig+2-2

...	@@ -271,7 +271,7 @@ async fn writeRunner(lock: *RwLock) void {	...	@@ -271,7 +271,7 @@ async fn writeRunner(lock: *RwLock) void {
271		271
272	var i: usize = 0;	272	var i: usize = 0;
273	while (i < shared_test_data.len) : (i += 1) {	273	while (i < shared_test_data.len) : (i += 1) {
274	std.os.time.sleep(100 * std.os.time.microsecond);	274	std.time.sleep(100 * std.time.microsecond);
275	const lock_promise = async lock.acquireWrite() catch @panic("out of memory");	275	const lock_promise = async lock.acquireWrite() catch @panic("out of memory");
276	const handle = await lock_promise;	276	const handle = await lock_promise;
277	defer handle.release();	277	defer handle.release();
...	@@ -286,7 +286,7 @@ async fn writeRunner(lock: *RwLock) void {	...	@@ -286,7 +286,7 @@ async fn writeRunner(lock: *RwLock) void {
286		286
287	async fn readRunner(lock: *RwLock) void {	287	async fn readRunner(lock: *RwLock) void {
288	suspend; // resumed by onNextTick	288	suspend; // resumed by onNextTick
289	std.os.time.sleep(1);	289	std.time.sleep(1);
290		290
291	var i: usize = 0;	291	var i: usize = 0;
292	while (i < shared_test_data.len) : (i += 1) {	292	while (i < shared_test_data.len) : (i += 1) {

std/fmt.zig+1-1

...	@@ -226,7 +226,7 @@ pub fn formatType(	...	@@ -226,7 +226,7 @@ pub fn formatType(
226	builtin.TypeInfo.Pointer.Size.Many => {	226	builtin.TypeInfo.Pointer.Size.Many => {
227	if (ptr_info.child == u8) {	227	if (ptr_info.child == u8) {
228	if (fmt.len > 0 and fmt[0] == 's') {	228	if (fmt.len > 0 and fmt[0] == 's') {
229	const len = std.cstr.len(value);	229	const len = mem.len(u8, value);
230	return formatText(value[0..len], fmt, context, Errors, output);	230	return formatText(value[0..len], fmt, context, Errors, output);
231	}	231	}
232	}	232	}

std/fs.zig created+808

...	@@ -0,0 +1,808 @@
1	const builtin = @import("builtin");
2	const std = @import("std.zig");
3	const os = std.os;
4	const mem = std.mem;
5	const base64 = std.base64;
6	const crypto = std.crypto;
7	const Allocator = std.mem.Allocator;
8	const assert = std.debug.assert;
9
10	pub const path = @import("fs/path.zig");
11	pub const File = @import("fs/file.zig").File;
12
13	pub const symLink = os.symlink;
14	pub const symLinkC = os.symlinkC;
15	pub const deleteFile = os.unlink;
16	pub const deleteFileC = os.unlinkC;
17	pub const rename = os.rename;
18	pub const renameC = os.renameC;
19	pub const renameW = os.renameW;
20	pub const realpath = os.realpath;
21	pub const realpathC = os.realpathC;
22	pub const realpathW = os.realpathW;
23
24	pub const getAppDataDir = @import("fs/get_app_data_dir.zig").getAppDataDir;
25	pub const GetAppDataDirError = @import("fs/get_app_data_dir.zig").GetAppDataDirError;
26
27	/// This represents the maximum size of a UTF-8 encoded file path.
28	/// All file system operations which return a path are guaranteed to
29	/// fit into a UTF-8 encoded array of this length.
30	/// path being too long if it is this 0long
31	pub const MAX_PATH_BYTES = switch (builtin.os) {
32	.linux, .macosx, .ios, .freebsd, .netbsd => os.PATH_MAX,
33	// Each UTF-16LE character may be expanded to 3 UTF-8 bytes.
34	// If it would require 4 UTF-8 bytes, then there would be a surrogate
35	// pair in the UTF-16LE, and we (over)account 3 bytes for it that way.
36	// +1 for the null byte at the end, which can be encoded in 1 byte.
37	.windows => os.windows.PATH_MAX_WIDE * 3 + 1,
38	else => @compileError("Unsupported OS"),
39	};
40
41	// here we replace the standard +/ with -_ so that it can be used in a file name
42	const b64_fs_encoder = base64.Base64Encoder.init("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_", base64.standard_pad_char);
43
44	/// TODO remove the allocator requirement from this API
45	pub fn atomicSymLink(allocator: *Allocator, existing_path: []const u8, new_path: []const u8) !void {
46	if (symLink(existing_path, new_path)) {
47	return;
48	} else \|err\| switch (err) {
49	error.PathAlreadyExists => {},
50	else => return err, // TODO zig should know this set does not include PathAlreadyExists
51	}
52
53	const dirname = path.dirname(new_path) orelse ".";
54
55	var rand_buf: [12]u8 = undefined;
56	const tmp_path = try allocator.alloc(u8, dirname.len + 1 + base64.Base64Encoder.calcSize(rand_buf.len));
57	defer allocator.free(tmp_path);
58	mem.copy(u8, tmp_path[0..], dirname);
59	tmp_path[dirname.len] = path.sep;
60	while (true) {
61	try crypto.randomBytes(rand_buf[0..]);
62	b64_fs_encoder.encode(tmp_path[dirname.len + 1 ..], rand_buf);
63
64	if (symLink(existing_path, tmp_path)) {
65	return rename(tmp_path, new_path);
66	} else \|err\| switch (err) {
67	error.PathAlreadyExists => continue,
68	else => return err, // TODO zig should know this set does not include PathAlreadyExists
69	}
70	}
71	}
72
73	/// Guaranteed to be atomic. However until https://patchwork.kernel.org/patch/9636735/ is
74	/// merged and readily available,
75	/// there is a possibility of power loss or application termination leaving temporary files present
76	/// in the same directory as dest_path.
77	/// Destination file will have the same mode as the source file.
78	pub fn copyFile(source_path: []const u8, dest_path: []const u8) !void {
79	var in_file = try File.openRead(source_path);
80	defer in_file.close();
81
82	const mode = try in_file.mode();
83	const in_stream = &in_file.inStream().stream;
84
85	var atomic_file = try AtomicFile.init(dest_path, mode);
86	defer atomic_file.deinit();
87
88	var buf: [mem.page_size]u8 = undefined;
89	while (true) {
90	const amt = try in_stream.readFull(buf[0..]);
91	try atomic_file.file.write(buf[0..amt]);
92	if (amt != buf.len) {
93	return atomic_file.finish();
94	}
95	}
96	}
97
98	/// Guaranteed to be atomic. However until https://patchwork.kernel.org/patch/9636735/ is
99	/// merged and readily available,
100	/// there is a possibility of power loss or application termination leaving temporary files present
101	pub fn copyFileMode(source_path: []const u8, dest_path: []const u8, mode: File.Mode) !void {
102	var in_file = try File.openRead(source_path);
103	defer in_file.close();
104
105	var atomic_file = try AtomicFile.init(dest_path, mode);
106	defer atomic_file.deinit();
107
108	var buf: [mem.page_size]u8 = undefined;
109	while (true) {
110	const amt = try in_file.read(buf[0..]);
111	try atomic_file.file.write(buf[0..amt]);
112	if (amt != buf.len) {
113	return atomic_file.finish();
114	}
115	}
116	}
117
118	pub const AtomicFile = struct {
119	file: File,
120	tmp_path_buf: [MAX_PATH_BYTES]u8,
121	dest_path: []const u8,
122	finished: bool,
123
124	const InitError = File.OpenError;
125
126	/// dest_path must remain valid for the lifetime of AtomicFile
127	/// call finish to atomically replace dest_path with contents
128	/// TODO once we have null terminated pointers, use the
129	/// openWriteNoClobberN function
130	pub fn init(dest_path: []const u8, mode: File.Mode) InitError!AtomicFile {
131	const dirname = path.dirname(dest_path);
132	var rand_buf: [12]u8 = undefined;
133	const dirname_component_len = if (dirname) \|d\| d.len + 1 else 0;
134	const encoded_rand_len = comptime base64.Base64Encoder.calcSize(rand_buf.len);
135	const tmp_path_len = dirname_component_len + encoded_rand_len;
136	var tmp_path_buf: [MAX_PATH_BYTES]u8 = undefined;
137	if (tmp_path_len >= tmp_path_buf.len) return error.NameTooLong;
138
139	if (dirname) \|dir\| {
140	mem.copy(u8, tmp_path_buf[0..], dir);
141	tmp_path_buf[dir.len] = path.sep;
142	}
143
144	tmp_path_buf[tmp_path_len] = 0;
145
146	while (true) {
147	try crypto.randomBytes(rand_buf[0..]);
148	b64_fs_encoder.encode(tmp_path_buf[dirname_component_len..tmp_path_len], rand_buf);
149
150	const file = File.openWriteNoClobberC(&tmp_path_buf, mode) catch \|err\| switch (err) {
151	error.PathAlreadyExists => continue,
152	// TODO zig should figure out that this error set does not include PathAlreadyExists since
153	// it is handled in the above switch
154	else => return err,
155	};
156
157	return AtomicFile{
158	.file = file,
159	.tmp_path_buf = tmp_path_buf,
160	.dest_path = dest_path,
161	.finished = false,
162	};
163	}
164	}
165
166	/// always call deinit, even after successful finish()
167	pub fn deinit(self: *AtomicFile) void {
168	if (!self.finished) {
169	self.file.close();
170	deleteFileC(&self.tmp_path_buf) catch {};
171	self.finished = true;
172	}
173	}
174
175	pub fn finish(self: *AtomicFile) !void {
176	assert(!self.finished);
177	self.file.close();
178	self.finished = true;
179	if (os.windows.is_the_target) {
180	const dest_path_w = try os.windows.sliceToPrefixedFileW(self.dest_path);
181	const tmp_path_w = try os.windows.cStrToPrefixedFileW(&self.tmp_path_buf);
182	return os.renameW(&tmp_path_w, &dest_path_w);
183	}
184	const dest_path_c = try os.toPosixPath(self.dest_path);
185	return os.renameC(&self.tmp_path_buf, &dest_path_c);
186	}
187	};
188
189	const default_new_dir_mode = 0o755;
190
191	/// Create a new directory.
192	pub fn makeDir(dir_path: []const u8) !void {
193	return os.mkdir(dir_path, default_new_dir_mode);
194	}
195
196	/// Same as `makeDir` except the parameter is a null-terminated UTF8-encoded string.
197	pub fn makeDirC(dir_path: [*]const u8) !void {
198	return os.mkdirC(dir_path, default_new_dir_mode);
199	}
200
201	/// Same as `makeDir` except the parameter is a null-terminated UTF16LE-encoded string.
202	pub fn makeDirW(dir_path: [*]const u16) !void {
203	return os.mkdirW(dir_path, default_new_dir_mode);
204	}
205
206	/// Calls makeDir recursively to make an entire path. Returns success if the path
207	/// already exists and is a directory.
208	/// This function is not atomic, and if it returns an error, the file system may
209	/// have been modified regardless.
210	/// TODO determine if we can remove the allocator requirement from this function
211	pub fn makePath(allocator: *Allocator, full_path: []const u8) !void {
212	const resolved_path = try path.resolve(allocator, [][]const u8{full_path});
213	defer allocator.free(resolved_path);
214
215	var end_index: usize = resolved_path.len;
216	while (true) {
217	makeDir(resolved_path[0..end_index]) catch \|err\| switch (err) {
218	error.PathAlreadyExists => {
219	// TODO stat the file and return an error if it's not a directory
220	// this is important because otherwise a dangling symlink
221	// could cause an infinite loop
222	if (end_index == resolved_path.len) return;
223	},
224	error.FileNotFound => {
225	// march end_index backward until next path component
226	while (true) {
227	end_index -= 1;
228	if (path.isSep(resolved_path[end_index])) break;
229	}
230	continue;
231	},
232	else => return err,
233	};
234	if (end_index == resolved_path.len) return;
235	// march end_index forward until next path component
236	while (true) {
237	end_index += 1;
238	if (end_index == resolved_path.len or path.isSep(resolved_path[end_index])) break;
239	}
240	}
241	}
242
243	/// Returns `error.DirNotEmpty` if the directory is not empty.
244	/// To delete a directory recursively, see `deleteTree`.
245	pub fn deleteDir(dir_path: []const u8) !void {
246	return os.rmdir(dir_path);
247	}
248
249	/// Same as `deleteDir` except the parameter is a null-terminated UTF8-encoded string.
250	pub fn deleteDirC(dir_path: [*]const u8) !void {
251	return os.rmdirC(dir_path);
252	}
253
254	/// Same as `deleteDir` except the parameter is a null-terminated UTF16LE-encoded string.
255	pub fn deleteDirW(dir_path: [*]const u16) !void {
256	return os.rmdirW(dir_path);
257	}
258
259	/// Whether ::full_path describes a symlink, file, or directory, this function
260	/// removes it. If it cannot be removed because it is a non-empty directory,
261	/// this function recursively removes its entries and then tries again.
262	const DeleteTreeError = error{
263	OutOfMemory,
264	AccessDenied,
265	FileTooBig,
266	IsDir,
267	SymLinkLoop,
268	ProcessFdQuotaExceeded,
269	NameTooLong,
270	SystemFdQuotaExceeded,
271	NoDevice,
272	SystemResources,
273	NoSpaceLeft,
274	PathAlreadyExists,
275	ReadOnlyFileSystem,
276	NotDir,
277	FileNotFound,
278	FileSystem,
279	FileBusy,
280	DirNotEmpty,
281	DeviceBusy,
282
283	/// On Windows, file paths must be valid Unicode.
284	InvalidUtf8,
285
286	/// On Windows, file paths cannot contain these characters:
287	/// '/', '*', '?', '"', '<', '>', '\|'
288	BadPathName,
289
290	Unexpected,
291	};
292
293	/// TODO determine if we can remove the allocator requirement
294	pub fn deleteTree(allocator: *Allocator, full_path: []const u8) DeleteTreeError!void {
295	start_over: while (true) {
296	var got_access_denied = false;
297	// First, try deleting the item as a file. This way we don't follow sym links.
298	if (deleteFile(full_path)) {
299	return;
300	} else \|err\| switch (err) {
301	error.FileNotFound => return,
302	error.IsDir => {},
303	error.AccessDenied => got_access_denied = true,
304
305	error.InvalidUtf8,
306	error.SymLinkLoop,
307	error.NameTooLong,
308	error.SystemResources,
309	error.ReadOnlyFileSystem,
310	error.NotDir,
311	error.FileSystem,
312	error.FileBusy,
313	error.BadPathName,
314	error.Unexpected,
315	=> return err,
316	}
317	{
318	var dir = Dir.open(allocator, full_path) catch \|err\| switch (err) {
319	error.NotDir => {
320	if (got_access_denied) {
321	return error.AccessDenied;
322	}
323	continue :start_over;
324	},
325
326	error.OutOfMemory,
327	error.AccessDenied,
328	error.FileTooBig,
329	error.IsDir,
330	error.SymLinkLoop,
331	error.ProcessFdQuotaExceeded,
332	error.NameTooLong,
333	error.SystemFdQuotaExceeded,
334	error.NoDevice,
335	error.FileNotFound,
336	error.SystemResources,
337	error.NoSpaceLeft,
338	error.PathAlreadyExists,
339	error.Unexpected,
340	error.InvalidUtf8,
341	error.BadPathName,
342	error.DeviceBusy,
343	=> return err,
344	};
345	defer dir.close();
346
347	var full_entry_buf = std.ArrayList(u8).init(allocator);
348	defer full_entry_buf.deinit();
349
350	while (try dir.next()) \|entry\| {
351	try full_entry_buf.resize(full_path.len + entry.name.len + 1);
352	const full_entry_path = full_entry_buf.toSlice();
353	mem.copy(u8, full_entry_path, full_path);
354	full_entry_path[full_path.len] = path.sep;
355	mem.copy(u8, full_entry_path[full_path.len + 1 ..], entry.name);
356
357	try deleteTree(allocator, full_entry_path);
358	}
359	}
360	return deleteDir(full_path);
361	}
362	}
363
364	pub const Dir = struct {
365	handle: Handle,
366	allocator: *Allocator,
367
368	pub const Handle = switch (builtin.os) {
369	.macosx, .ios, .freebsd, .netbsd => struct {
370	fd: i32,
371	seek: i64,
372	buf: []u8,
373	index: usize,
374	end_index: usize,
375	},
376	.linux => struct {
377	fd: i32,
378	buf: []u8,
379	index: usize,
380	end_index: usize,
381	},
382	.windows => struct {
383	handle: os.windows.HANDLE,
384	find_file_data: os.windows.WIN32_FIND_DATAW,
385	first: bool,
386	name_data: [256]u8,
387	},
388	else => @compileError("unimplemented"),
389	};
390
391	pub const Entry = struct {
392	name: []const u8,
393	kind: Kind,
394
395	pub const Kind = enum {
396	BlockDevice,
397	CharacterDevice,
398	Directory,
399	NamedPipe,
400	SymLink,
401	File,
402	UnixDomainSocket,
403	Whiteout,
404	Unknown,
405	};
406	};
407
408	pub const OpenError = error{
409	FileNotFound,
410	NotDir,
411	AccessDenied,
412	FileTooBig,
413	IsDir,
414	SymLinkLoop,
415	ProcessFdQuotaExceeded,
416	NameTooLong,
417	SystemFdQuotaExceeded,
418	NoDevice,
419	SystemResources,
420	NoSpaceLeft,
421	PathAlreadyExists,
422	OutOfMemory,
423	InvalidUtf8,
424	BadPathName,
425	DeviceBusy,
426
427	Unexpected,
428	};
429
430	/// TODO remove the allocator requirement from this API
431	pub fn open(allocator: *Allocator, dir_path: []const u8) OpenError!Dir {
432	return Dir{
433	.allocator = allocator,
434	.handle = switch (builtin.os) {
435	.windows => blk: {
436	var find_file_data: os.windows.WIN32_FIND_DATAW = undefined;
437	const handle = try os.windows.FindFirstFile(dir_path, &find_file_data);
438	break :blk Handle{
439	.handle = handle,
440	.find_file_data = find_file_data, // TODO guaranteed copy elision
441	.first = true,
442	.name_data = undefined,
443	};
444	},
445	.macosx, .ios, .freebsd, .netbsd => Handle{
446	.fd = try os.open(dir_path, os.O_RDONLY \| os.O_NONBLOCK \| os.O_DIRECTORY \| os.O_CLOEXEC, 0),
447	.seek = 0,
448	.index = 0,
449	.end_index = 0,
450	.buf = []u8{},
451	},
452	.linux => Handle{
453	.fd = try os.open(dir_path, os.O_RDONLY \| os.O_DIRECTORY \| os.O_CLOEXEC, 0),
454	.index = 0,
455	.end_index = 0,
456	.buf = []u8{},
457	},
458	else => @compileError("unimplemented"),
459	},
460	};
461	}
462
463	pub fn close(self: *Dir) void {
464	if (os.windows.is_the_target) {
465	return os.windows.FindClose(self.handle.handle);
466	}
467	self.allocator.free(self.handle.buf);
468	os.close(self.handle.fd);
469	}
470
471	/// Memory such as file names referenced in this returned entry becomes invalid
472	/// with subsequent calls to next, as well as when this `Dir` is deinitialized.
473	pub fn next(self: *Dir) !?Entry {
474	switch (builtin.os) {
475	.linux => return self.nextLinux(),
476	.macosx, .ios => return self.nextDarwin(),
477	.windows => return self.nextWindows(),
478	.freebsd => return self.nextBsd(),
479	.netbsd => return self.nextBsd(),
480	else => @compileError("unimplemented"),
481	}
482	}
483
484	fn nextDarwin(self: *Dir) !?Entry {
485	start_over: while (true) {
486	if (self.handle.index >= self.handle.end_index) {
487	if (self.handle.buf.len == 0) {
488	self.handle.buf = try self.allocator.alloc(u8, mem.page_size);
489	}
490
491	while (true) {
492	const rc = os.system.__getdirentries64(
493	self.handle.fd,
494	self.handle.buf.ptr,
495	self.handle.buf.len,
496	&self.handle.seek,
497	);
498	if (rc == 0) return null;
499	if (rc < 0) {
500	switch (os.errno(rc)) {
501	os.EBADF => unreachable,
502	os.EFAULT => unreachable,
503	os.ENOTDIR => unreachable,
504	os.EINVAL => {
505	self.handle.buf = try self.allocator.realloc(self.handle.buf, self.handle.buf.len * 2);
506	continue;
507	},
508	else => \|err\| return os.unexpectedErrno(err),
509	}
510	}
511	self.handle.index = 0;
512	self.handle.end_index = @intCast(usize, rc);
513	break;
514	}
515	}
516	const darwin_entry = @ptrCast(*align(1) os.dirent, &self.handle.buf[self.handle.index]);
517	const next_index = self.handle.index + darwin_entry.d_reclen;
518	self.handle.index = next_index;
519
520	const name = @ptrCast([*]u8, &darwin_entry.d_name)[0..darwin_entry.d_namlen];
521
522	if (mem.eql(u8, name, ".") or mem.eql(u8, name, "..")) {
523	continue :start_over;
524	}
525
526	const entry_kind = switch (darwin_entry.d_type) {
527	os.DT_BLK => Entry.Kind.BlockDevice,
528	os.DT_CHR => Entry.Kind.CharacterDevice,
529	os.DT_DIR => Entry.Kind.Directory,
530	os.DT_FIFO => Entry.Kind.NamedPipe,
531	os.DT_LNK => Entry.Kind.SymLink,
532	os.DT_REG => Entry.Kind.File,
533	os.DT_SOCK => Entry.Kind.UnixDomainSocket,
534	os.DT_WHT => Entry.Kind.Whiteout,
535	else => Entry.Kind.Unknown,
536	};
537	return Entry{
538	.name = name,
539	.kind = entry_kind,
540	};
541	}
542	}
543
544	fn nextWindows(self: *Dir) !?Entry {
545	while (true) {
546	if (self.handle.first) {
547	self.handle.first = false;
548	} else {
549	if (!try os.windows.FindNextFile(self.handle.handle, &self.handle.find_file_data))
550	return null;
551	}
552	const name_utf16le = mem.toSlice(u16, self.handle.find_file_data.cFileName[0..].ptr);
553	if (mem.eql(u16, name_utf16le, []u16{'.'}) or mem.eql(u16, name_utf16le, []u16{ '.', '.' }))
554	continue;
555	// Trust that Windows gives us valid UTF-16LE
556	const name_utf8_len = std.unicode.utf16leToUtf8(self.handle.name_data[0..], name_utf16le) catch unreachable;
557	const name_utf8 = self.handle.name_data[0..name_utf8_len];
558	const kind = blk: {
559	const attrs = self.handle.find_file_data.dwFileAttributes;
560	if (attrs & os.windows.FILE_ATTRIBUTE_DIRECTORY != 0) break :blk Entry.Kind.Directory;
561	if (attrs & os.windows.FILE_ATTRIBUTE_REPARSE_POINT != 0) break :blk Entry.Kind.SymLink;
562	if (attrs & os.windows.FILE_ATTRIBUTE_NORMAL != 0) break :blk Entry.Kind.File;
563	break :blk Entry.Kind.Unknown;
564	};
565	return Entry{
566	.name = name_utf8,
567	.kind = kind,
568	};
569	}
570	}
571
572	fn nextLinux(self: *Dir) !?Entry {
573	start_over: while (true) {
574	if (self.handle.index >= self.handle.end_index) {
575	if (self.handle.buf.len == 0) {
576	self.handle.buf = try self.allocator.alloc(u8, mem.page_size);
577	}
578
579	while (true) {
580	const rc = os.linux.getdents64(self.handle.fd, self.handle.buf.ptr, self.handle.buf.len);
581	switch (os.linux.getErrno(rc)) {
582	0 => {},
583	os.EBADF => unreachable,
584	os.EFAULT => unreachable,
585	os.ENOTDIR => unreachable,
586	os.EINVAL => {
587	self.handle.buf = try self.allocator.realloc(self.handle.buf, self.handle.buf.len * 2);
588	continue;
589	},
590	else => \|err\| return os.unexpectedErrno(err),
591	}
592	if (rc == 0) return null;
593	self.handle.index = 0;
594	self.handle.end_index = rc;
595	break;
596	}
597	}
598	const linux_entry = @ptrCast(*align(1) os.dirent64, &self.handle.buf[self.handle.index]);
599	const next_index = self.handle.index + linux_entry.d_reclen;
600	self.handle.index = next_index;
601
602	const name = mem.toSlice(u8, @ptrCast([*]u8, &linux_entry.d_name));
603
604	// skip . and .. entries
605	if (mem.eql(u8, name, ".") or mem.eql(u8, name, "..")) {
606	continue :start_over;
607	}
608
609	const entry_kind = switch (linux_entry.d_type) {
610	os.DT_BLK => Entry.Kind.BlockDevice,
611	os.DT_CHR => Entry.Kind.CharacterDevice,
612	os.DT_DIR => Entry.Kind.Directory,
613	os.DT_FIFO => Entry.Kind.NamedPipe,
614	os.DT_LNK => Entry.Kind.SymLink,
615	os.DT_REG => Entry.Kind.File,
616	os.DT_SOCK => Entry.Kind.UnixDomainSocket,
617	else => Entry.Kind.Unknown,
618	};
619	return Entry{
620	.name = name,
621	.kind = entry_kind,
622	};
623	}
624	}
625
626	fn nextBsd(self: *Dir) !?Entry {
627	start_over: while (true) {
628	if (self.handle.index >= self.handle.end_index) {
629	if (self.handle.buf.len == 0) {
630	self.handle.buf = try self.allocator.alloc(u8, mem.page_size);
631	}
632
633	while (true) {
634	const rc = os.system.getdirentries(
635	self.handle.fd,
636	self.handle.buf.ptr,
637	self.handle.buf.len,
638	&self.handle.seek,
639	);
640	switch (os.errno(rc)) {
641	0 => {},
642	os.EBADF => unreachable,
643	os.EFAULT => unreachable,
644	os.ENOTDIR => unreachable,
645	os.EINVAL => {
646	self.handle.buf = try self.allocator.realloc(self.handle.buf, self.handle.buf.len * 2);
647	continue;
648	},
649	else => \|err\| return os.unexpectedErrno(err),
650	}
651	if (rc == 0) return null;
652	self.handle.index = 0;
653	self.handle.end_index = @intCast(usize, rc);
654	break;
655	}
656	}
657	const freebsd_entry = @ptrCast(*align(1) os.dirent, &self.handle.buf[self.handle.index]);
658	const next_index = self.handle.index + freebsd_entry.d_reclen;
659	self.handle.index = next_index;
660
661	const name = @ptrCast([*]u8, &freebsd_entry.d_name)[0..freebsd_entry.d_namlen];
662
663	if (mem.eql(u8, name, ".") or mem.eql(u8, name, "..")) {
664	continue :start_over;
665	}
666
667	const entry_kind = switch (freebsd_entry.d_type) {
668	os.DT_BLK => Entry.Kind.BlockDevice,
669	os.DT_CHR => Entry.Kind.CharacterDevice,
670	os.DT_DIR => Entry.Kind.Directory,
671	os.DT_FIFO => Entry.Kind.NamedPipe,
672	os.DT_LNK => Entry.Kind.SymLink,
673	os.DT_REG => Entry.Kind.File,
674	os.DT_SOCK => Entry.Kind.UnixDomainSocket,
675	os.DT_WHT => Entry.Kind.Whiteout,
676	else => Entry.Kind.Unknown,
677	};
678	return Entry{
679	.name = name,
680	.kind = entry_kind,
681	};
682	}
683	}
684	};
685
686	/// Read value of a symbolic link.
687	/// The return value is a slice of buffer, from index `0`.
688	pub fn readLink(pathname: []const u8, buffer: *[os.PATH_MAX]u8) ![]u8 {
689	return os.readlink(pathname, buffer);
690	}
691
692	/// Same as `readLink`, except the `pathname` parameter is null-terminated.
693	pub fn readLinkC(pathname: []const u8, buffer: [os.PATH_MAX]u8) ![]u8 {
694	return os.readlinkC(pathname, buffer);
695	}
696
697	pub const OpenSelfExeError = os.OpenError \|\| os.windows.CreateFileError \|\| SelfExePathError;
698
699	pub fn openSelfExe() OpenSelfExeError!File {
700	if (os.linux.is_the_target) {
701	return File.openReadC(c"/proc/self/exe");
702	}
703	if (os.windows.is_the_target) {
704	var buf: [os.windows.PATH_MAX_WIDE]u16 = undefined;
705	const wide_slice = try selfExePathW(&buf);
706	return File.openReadW(wide_slice.ptr);
707	}
708	var buf: [MAX_PATH_BYTES]u8 = undefined;
709	const self_exe_path = try selfExePath(&buf);
710	buf[self_exe_path.len] = 0;
711	return File.openReadC(self_exe_path.ptr);
712	}
713
714	test "openSelfExe" {
715	switch (builtin.os) {
716	.linux, .macosx, .ios, .windows, .freebsd => (try openSelfExe()).close(),
717	else => return error.SkipZigTest, // Unsupported OS.
718	}
719	}
720
721	pub const SelfExePathError = os.ReadLinkError \|\| os.SysCtlError;
722
723	/// Get the path to the current executable.
724	/// If you only need the directory, use selfExeDirPath.
725	/// If you only want an open file handle, use openSelfExe.
726	/// This function may return an error if the current executable
727	/// was deleted after spawning.
728	/// Returned value is a slice of out_buffer.
729	///
730	/// On Linux, depends on procfs being mounted. If the currently executing binary has
731	/// been deleted, the file path looks something like `/a/b/c/exe (deleted)`.
732	/// TODO make the return type of this a null terminated pointer
733	pub fn selfExePath(out_buffer: *[MAX_PATH_BYTES]u8) SelfExePathError![]u8 {
734	if (os.darwin.is_the_target) {
735	var u32_len: u32 = out_buffer.len;
736	const rc = std.c._NSGetExecutablePath(out_buffer, &u32_len);
737	if (rc != 0) return error.NameTooLong;
738	return mem.toSlice(u8, out_buffer);
739	}
740	switch (builtin.os) {
741	.linux => return os.readlinkC(c"/proc/self/exe", out_buffer),
742	.freebsd => {
743	var mib = [4]c_int{ os.CTL_KERN, os.KERN_PROC, os.KERN_PROC_PATHNAME, -1 };
744	var out_len: usize = out_buffer.len;
745	try os.sysctl(&mib, out_buffer, &out_len, null, 0);
746	// TODO could this slice from 0 to out_len instead?
747	return mem.toSlice(u8, out_buffer);
748	},
749	.netbsd => {
750	var mib = [4]c_int{ os.CTL_KERN, os.KERN_PROC_ARGS, -1, os.KERN_PROC_PATHNAME };
751	var out_len: usize = out_buffer.len;
752	try os.sysctl(&mib, out_buffer, &out_len, null, 0);
753	// TODO could this slice from 0 to out_len instead?
754	return mem.toSlice(u8, out_buffer);
755	},
756	.windows => {
757	var utf16le_buf: [os.windows.PATH_MAX_WIDE]u16 = undefined;
758	const utf16le_slice = try selfExePathW(&utf16le_buf);
759	// Trust that Windows gives us valid UTF-16LE.
760	const end_index = std.unicode.utf16leToUtf8(out_buffer, utf16le_slice) catch unreachable;
761	return out_buffer[0..end_index];
762	},
763	else => @compileError("std.fs.selfExePath not supported for this target"),
764	}
765	}
766
767	/// Same as `selfExePath` except the result is UTF16LE-encoded.
768	pub fn selfExePathW(out_buffer: *[os.windows.PATH_MAX_WIDE]u16) SelfExePathError![]u16 {
769	return os.windows.GetModuleFileNameW(null, out_buffer, out_buffer.len);
770	}
771
772	/// `selfExeDirPath` except allocates the result on the heap.
773	/// Caller owns returned memory.
774	pub fn selfExeDirPathAlloc(allocator: *Allocator) ![]u8 {
775	var buf: [MAX_PATH_BYTES]u8 = undefined;
776	return mem.dupe(allocator, u8, try selfExeDirPath(&buf));
777	}
778
779	/// Get the directory path that contains the current executable.
780	/// Returned value is a slice of out_buffer.
781	pub fn selfExeDirPath(out_buffer: *[MAX_PATH_BYTES]u8) SelfExePathError![]const u8 {
782	if (os.linux.is_the_target) {
783	// If the currently executing binary has been deleted,
784	// the file path looks something like `/a/b/c/exe (deleted)`
785	// This path cannot be opened, but it's valid for determining the directory
786	// the executable was in when it was run.
787	const full_exe_path = try os.readlinkC(c"/proc/self/exe", out_buffer);
788	// Assume that /proc/self/exe has an absolute path, and therefore dirname
789	// will not return null.
790	return path.dirname(full_exe_path).?;
791	}
792	const self_exe_path = try selfExePath(out_buffer);
793	// Assume that the OS APIs return absolute paths, and therefore dirname
794	// will not return null.
795	return path.dirname(self_exe_path).?;
796	}
797
798	/// `realpath`, except caller must free the returned memory.
799	pub fn realpathAlloc(allocator: *Allocator, pathname: []const u8) ![]u8 {
800	var buf: [MAX_PATH_BYTES]u8 = undefined;
801	return mem.dupe(allocator, u8, try os.realpath(pathname, &buf));
802	}
803
804	test "" {
805	_ = @import("fs/path.zig");
806	_ = @import("fs/file.zig");
807	_ = @import("fs/get_app_data_dir.zig");
808	}

std/fs/file.zig created+319

...	@@ -0,0 +1,319 @@
1	const std = @import("../std.zig");
2	const builtin = @import("builtin");
3	const os = std.os;
4	const io = std.io;
5	const mem = std.mem;
6	const math = std.math;
7	const assert = std.debug.assert;
8	const windows = os.windows;
9	const Os = builtin.Os;
10	const maxInt = std.math.maxInt;
11
12	pub const File = struct {
13	/// The OS-specific file descriptor or file handle.
14	handle: os.fd_t,
15
16	pub const Mode = switch (builtin.os) {
17	Os.windows => void,
18	else => u32,
19	};
20
21	pub const default_mode = switch (builtin.os) {
22	Os.windows => {},
23	else => 0o666,
24	};
25
26	pub const OpenError = windows.CreateFileError \|\| os.OpenError;
27
28	/// Call close to clean up.
29	pub fn openRead(path: []const u8) OpenError!File {
30	if (windows.is_the_target) {
31	const path_w = try windows.sliceToPrefixedFileW(path);
32	return openReadW(&path_w);
33	}
34	const path_c = try os.toPosixPath(path);
35	return openReadC(&path_c);
36	}
37
38	/// `openRead` except with a null terminated path
39	pub fn openReadC(path: [*]const u8) OpenError!File {
40	if (windows.is_the_target) {
41	const path_w = try windows.cStrToPrefixedFileW(path);
42	return openReadW(&path_w);
43	}
44	const flags = os.O_LARGEFILE \| os.O_RDONLY;
45	const fd = try os.openC(path, flags, 0);
46	return openHandle(fd);
47	}
48
49	/// `openRead` except with a null terminated UTF16LE encoded path
50	pub fn openReadW(path_w: [*]const u16) OpenError!File {
51	const handle = try windows.CreateFileW(
52	path_w,
53	windows.GENERIC_READ,
54	windows.FILE_SHARE_READ,
55	null,
56	windows.OPEN_EXISTING,
57	windows.FILE_ATTRIBUTE_NORMAL,
58	null,
59	);
60	return openHandle(handle);
61	}
62
63	/// Calls `openWriteMode` with `default_mode` for the mode.
64	pub fn openWrite(path: []const u8) OpenError!File {
65	return openWriteMode(path, default_mode);
66	}
67
68	/// If the path does not exist it will be created.
69	/// If a file already exists in the destination it will be truncated.
70	/// Call close to clean up.
71	pub fn openWriteMode(path: []const u8, file_mode: Mode) OpenError!File {
72	if (windows.is_the_target) {
73	const path_w = try windows.sliceToPrefixedFileW(path);
74	return openWriteModeW(&path_w, file_mode);
75	}
76	const path_c = try os.toPosixPath(path);
77	return openWriteModeC(&path_c, file_mode);
78	}
79
80	/// Same as `openWriteMode` except `path` is null-terminated.
81	pub fn openWriteModeC(path: [*]const u8, file_mode: Mode) OpenError!File {
82	if (windows.is_the_target) {
83	const path_w = try windows.cStrToPrefixedFileW(path);
84	return openWriteModeW(&path_w, file_mode);
85	}
86	const flags = os.O_LARGEFILE \| os.O_WRONLY \| os.O_CREAT \| os.O_CLOEXEC \| os.O_TRUNC;
87	const fd = try os.openC(path, flags, file_mode);
88	return openHandle(fd);
89	}
90
91	/// Same as `openWriteMode` except `path` is null-terminated and UTF16LE encoded
92	pub fn openWriteModeW(path_w: [*]const u16, file_mode: Mode) OpenError!File {
93	const handle = try windows.CreateFileW(
94	path_w,
95	windows.GENERIC_WRITE,
96	windows.FILE_SHARE_WRITE \| windows.FILE_SHARE_READ \| windows.FILE_SHARE_DELETE,
97	null,
98	windows.CREATE_ALWAYS,
99	windows.FILE_ATTRIBUTE_NORMAL,
100	null,
101	);
102	return openHandle(handle);
103	}
104
105	/// If the path does not exist it will be created.
106	/// If a file already exists in the destination this returns OpenError.PathAlreadyExists
107	/// Call close to clean up.
108	pub fn openWriteNoClobber(path: []const u8, file_mode: Mode) OpenError!File {
109	if (windows.is_the_target) {
110	const path_w = try windows.sliceToPrefixedFileW(path);
111	return openWriteNoClobberW(&path_w, file_mode);
112	}
113	const path_c = try os.toPosixPath(path);
114	return openWriteNoClobberC(&path_c, file_mode);
115	}
116
117	pub fn openWriteNoClobberC(path: [*]const u8, file_mode: Mode) OpenError!File {
118	if (windows.is_the_target) {
119	const path_w = try windows.cStrToPrefixedFileW(path);
120	return openWriteNoClobberW(&path_w, file_mode);
121	}
122	const flags = os.O_LARGEFILE \| os.O_WRONLY \| os.O_CREAT \| os.O_CLOEXEC \| os.O_EXCL;
123	const fd = try os.openC(path, flags, file_mode);
124	return openHandle(fd);
125	}
126
127	pub fn openWriteNoClobberW(path_w: [*]const u16, file_mode: Mode) OpenError!File {
128	const handle = try windows.CreateFileW(
129	path_w,
130	windows.GENERIC_WRITE,
131	windows.FILE_SHARE_WRITE \| windows.FILE_SHARE_READ \| windows.FILE_SHARE_DELETE,
132	null,
133	windows.CREATE_NEW,
134	windows.FILE_ATTRIBUTE_NORMAL,
135	null,
136	);
137	return openHandle(handle);
138	}
139
140	pub fn openHandle(handle: os.fd_t) File {
141	return File{ .handle = handle };
142	}
143
144	/// Test for the existence of `path`.
145	/// `path` is UTF8-encoded.
146	/// In general it is recommended to avoid this function. For example,
147	/// instead of testing if a file exists and then opening it, just
148	/// open it and handle the error for file not found.
149	pub fn access(path: []const u8) !void {
150	return os.access(path, os.F_OK);
151	}
152
153	/// Same as `access` except the parameter is null-terminated.
154	pub fn accessC(path: [*]const u8) !void {
155	return os.accessC(path, os.F_OK);
156	}
157
158	/// Same as `access` except the parameter is null-terminated UTF16LE-encoded.
159	pub fn accessW(path: [*]const u16) !void {
160	return os.accessW(path, os.F_OK);
161	}
162
163	/// Upon success, the stream is in an uninitialized state. To continue using it,
164	/// you must use the open() function.
165	pub fn close(self: File) void {
166	return os.close(self.handle);
167	}
168
169	/// Test whether the file refers to a terminal.
170	/// See also `supportsAnsiEscapeCodes`.
171	pub fn isTty(self: File) bool {
172	return os.isatty(self.handle);
173	}
174
175	/// Test whether ANSI escape codes will be treated as such.
176	pub fn supportsAnsiEscapeCodes(self: File) bool {
177	if (windows.is_the_target) {
178	return os.isCygwinPty(self.handle);
179	}
180	return self.isTty();
181	}
182
183	pub const SeekError = os.SeekError;
184
185	/// Repositions read/write file offset relative to the current offset.
186	pub fn seekBy(self: File, offset: i64) SeekError!void {
187	return os.lseek_CUR(self.handle, offset);
188	}
189
190	/// Repositions read/write file offset relative to the end.
191	pub fn seekFromEnd(self: File, offset: i64) SeekError!void {
192	return os.lseek_END(self.handle, offset);
193	}
194
195	/// Repositions read/write file offset relative to the beginning.
196	pub fn seekTo(self: File, offset: u64) SeekError!void {
197	return os.lseek_SET(self.handle, offset);
198	}
199
200	pub const GetPosError = os.SeekError \|\| os.FStatError;
201
202	pub fn getPos(self: File) GetPosError!u64 {
203	return os.lseek_CUR_get(self.handle);
204	}
205
206	pub fn getEndPos(self: File) GetPosError!u64 {
207	if (windows.is_the_target) {
208	return windows.GetFileSizeEx(self.handle);
209	}
210	const stat = try os.fstat(self.handle);
211	return @bitCast(u64, stat.size);
212	}
213
214	pub const ModeError = os.FStatError;
215
216	pub fn mode(self: File) ModeError!Mode {
217	if (windows.is_the_target) {
218	return {};
219	}
220	const stat = try os.fstat(self.handle);
221	// TODO: we should be able to cast u16 to ModeError!u32, making this
222	// explicit cast not necessary
223	return Mode(stat.mode);
224	}
225
226	pub const ReadError = os.ReadError;
227
228	pub fn read(self: File, buffer: []u8) ReadError!usize {
229	return os.read(self.handle, buffer);
230	}
231
232	pub const WriteError = os.WriteError;
233
234	pub fn write(self: File, bytes: []const u8) WriteError!void {
235	return os.write(self.handle, bytes);
236	}
237
238	pub fn inStream(file: File) InStream {
239	return InStream{
240	.file = file,
241	.stream = InStream.Stream{ .readFn = InStream.readFn },
242	};
243	}
244
245	pub fn outStream(file: File) OutStream {
246	return OutStream{
247	.file = file,
248	.stream = OutStream.Stream{ .writeFn = OutStream.writeFn },
249	};
250	}
251
252	pub fn seekableStream(file: File) SeekableStream {
253	return SeekableStream{
254	.file = file,
255	.stream = SeekableStream.Stream{
256	.seekToFn = SeekableStream.seekToFn,
257	.seekByFn = SeekableStream.seekByFn,
258	.getPosFn = SeekableStream.getPosFn,
259	.getEndPosFn = SeekableStream.getEndPosFn,
260	},
261	};
262	}
263
264	/// Implementation of io.InStream trait for File
265	pub const InStream = struct {
266	file: File,
267	stream: Stream,
268
269	pub const Error = ReadError;
270	pub const Stream = io.InStream(Error);
271
272	fn readFn(in_stream: *Stream, buffer: []u8) Error!usize {
273	const self = @fieldParentPtr(InStream, "stream", in_stream);
274	return self.file.read(buffer);
275	}
276	};
277
278	/// Implementation of io.OutStream trait for File
279	pub const OutStream = struct {
280	file: File,
281	stream: Stream,
282
283	pub const Error = WriteError;
284	pub const Stream = io.OutStream(Error);
285
286	fn writeFn(out_stream: *Stream, bytes: []const u8) Error!void {
287	const self = @fieldParentPtr(OutStream, "stream", out_stream);
288	return self.file.write(bytes);
289	}
290	};
291
292	/// Implementation of io.SeekableStream trait for File
293	pub const SeekableStream = struct {
294	file: File,
295	stream: Stream,
296
297	pub const Stream = io.SeekableStream(SeekError, GetPosError);
298
299	pub fn seekToFn(seekable_stream: *Stream, pos: u64) SeekError!void {
300	const self = @fieldParentPtr(SeekableStream, "stream", seekable_stream);
301	return self.file.seekTo(pos);
302	}
303
304	pub fn seekByFn(seekable_stream: *Stream, amt: i64) SeekError!void {
305	const self = @fieldParentPtr(SeekableStream, "stream", seekable_stream);
306	return self.file.seekBy(amt);
307	}
308
309	pub fn getEndPosFn(seekable_stream: *Stream) GetPosError!u64 {
310	const self = @fieldParentPtr(SeekableStream, "stream", seekable_stream);
311	return self.file.getEndPos();
312	}
313
314	pub fn getPosFn(seekable_stream: *Stream) GetPosError!u64 {
315	const self = @fieldParentPtr(SeekableStream, "stream", seekable_stream);
316	return self.file.getPos();
317	}
318	};
319	};

std/fs/get_app_data_dir.zig created+70

...	@@ -0,0 +1,70 @@
1	const std = @import("../std.zig");
2	const builtin = @import("builtin");
3	const unicode = std.unicode;
4	const mem = std.mem;
5	const fs = std.fs;
6	const os = std.os;
7
8	pub const GetAppDataDirError = error{
9	OutOfMemory,
10	AppDataDirUnavailable,
11	};
12
13	/// Caller owns returned memory.
14	/// TODO determine if we can remove the allocator requirement
15	pub fn getAppDataDir(allocator: *mem.Allocator, appname: []const u8) GetAppDataDirError![]u8 {
16	switch (builtin.os) {
17	.windows => {
18	var dir_path_ptr: [*]u16 = undefined;
19	switch (os.windows.shell32.SHGetKnownFolderPath(
20	&os.windows.FOLDERID_LocalAppData,
21	os.windows.KF_FLAG_CREATE,
22	null,
23	&dir_path_ptr,
24	)) {
25	os.windows.S_OK => {
26	defer os.windows.ole32.CoTaskMemFree(@ptrCast(*c_void, dir_path_ptr));
27	const global_dir = unicode.utf16leToUtf8Alloc(allocator, utf16lePtrSlice(dir_path_ptr)) catch \|err\| switch (err) {
28	error.UnexpectedSecondSurrogateHalf => return error.AppDataDirUnavailable,
29	error.ExpectedSecondSurrogateHalf => return error.AppDataDirUnavailable,
30	error.DanglingSurrogateHalf => return error.AppDataDirUnavailable,
31	error.OutOfMemory => return error.OutOfMemory,
32	};
33	defer allocator.free(global_dir);
34	return fs.path.join(allocator, [][]const u8{ global_dir, appname });
35	},
36	os.windows.E_OUTOFMEMORY => return error.OutOfMemory,
37	else => return error.AppDataDirUnavailable,
38	}
39	},
40	.macosx => {
41	const home_dir = os.getenv("HOME") orelse {
42	// TODO look in /etc/passwd
43	return error.AppDataDirUnavailable;
44	};
45	return fs.path.join(allocator, [][]const u8{ home_dir, "Library", "Application Support", appname });
46	},
47	.linux, .freebsd, .netbsd => {
48	const home_dir = os.getenv("HOME") orelse {
49	// TODO look in /etc/passwd
50	return error.AppDataDirUnavailable;
51	};
52	return fs.path.join(allocator, [][]const u8{ home_dir, ".local", "share", appname });
53	},
54	else => @compileError("Unsupported OS"),
55	}
56	}
57
58	fn utf16lePtrSlice(ptr: [*]const u16) []const u16 {
59	var index: usize = 0;
60	while (ptr[index] != 0) : (index += 1) {}
61	return ptr[0..index];
62	}
63
64	test "getAppDataDir" {
65	var buf: [512]u8 = undefined;
66	const allocator = &std.heap.FixedBufferAllocator.init(buf[0..]).allocator;
67
68	// We can't actually validate the result
69	_ = getAppDataDir(allocator, "zig") catch return;
70	}

std/fs/path.zig created+1136

...	@@ -0,0 +1,1136 @@
1	const builtin = @import("builtin");
2	const std = @import("../std.zig");
3	const debug = std.debug;
4	const assert = debug.assert;
5	const testing = std.testing;
6	const mem = std.mem;
7	const fmt = std.fmt;
8	const Allocator = mem.Allocator;
9	const math = std.math;
10	const windows = std.os.windows;
11	const fs = std.fs;
12	const process = std.process;
13
14	pub const sep_windows = '\\';
15	pub const sep_posix = '/';
16	pub const sep = if (windows.is_the_target) sep_windows else sep_posix;
17
18	pub const sep_str = [1]u8{sep};
19
20	pub const delimiter_windows = ';';
21	pub const delimiter_posix = ':';
22	pub const delimiter = if (windows.is_the_target) delimiter_windows else delimiter_posix;
23
24	pub fn isSep(byte: u8) bool {
25	if (windows.is_the_target) {
26	return byte == '/' or byte == '\\';
27	} else {
28	return byte == '/';
29	}
30	}
31
32	/// This is different from mem.join in that the separator will not be repeated if
33	/// it is found at the end or beginning of a pair of consecutive paths.
34	fn joinSep(allocator: *Allocator, separator: u8, paths: []const []const u8) ![]u8 {
35	if (paths.len == 0) return (([*]u8)(undefined))[0..0];
36
37	const total_len = blk: {
38	var sum: usize = paths[0].len;
39	var i: usize = 1;
40	while (i < paths.len) : (i += 1) {
41	const prev_path = paths[i - 1];
42	const this_path = paths[i];
43	const prev_sep = (prev_path.len != 0 and prev_path[prev_path.len - 1] == separator);
44	const this_sep = (this_path.len != 0 and this_path[0] == separator);
45	sum += @boolToInt(!prev_sep and !this_sep);
46	sum += if (prev_sep and this_sep) this_path.len - 1 else this_path.len;
47	}
48	break :blk sum;
49	};
50
51	const buf = try allocator.alloc(u8, total_len);
52	errdefer allocator.free(buf);
53
54	mem.copy(u8, buf, paths[0]);
55	var buf_index: usize = paths[0].len;
56	var i: usize = 1;
57	while (i < paths.len) : (i += 1) {
58	const prev_path = paths[i - 1];
59	const this_path = paths[i];
60	const prev_sep = (prev_path.len != 0 and prev_path[prev_path.len - 1] == separator);
61	const this_sep = (this_path.len != 0 and this_path[0] == separator);
62	if (!prev_sep and !this_sep) {
63	buf[buf_index] = separator;
64	buf_index += 1;
65	}
66	const adjusted_path = if (prev_sep and this_sep) this_path[1..] else this_path;
67	mem.copy(u8, buf[buf_index..], adjusted_path);
68	buf_index += adjusted_path.len;
69	}
70
71	// No need for shrink since buf is exactly the correct size.
72	return buf;
73	}
74
75	pub const join = if (windows.is_the_target) joinWindows else joinPosix;
76
77	/// Naively combines a series of paths with the native path seperator.
78	/// Allocates memory for the result, which must be freed by the caller.
79	pub fn joinWindows(allocator: *Allocator, paths: []const []const u8) ![]u8 {
80	return joinSep(allocator, sep_windows, paths);
81	}
82
83	/// Naively combines a series of paths with the native path seperator.
84	/// Allocates memory for the result, which must be freed by the caller.
85	pub fn joinPosix(allocator: *Allocator, paths: []const []const u8) ![]u8 {
86	return joinSep(allocator, sep_posix, paths);
87	}
88
89	fn testJoinWindows(paths: []const []const u8, expected: []const u8) void {
90	var buf: [1024]u8 = undefined;
91	const a = &std.heap.FixedBufferAllocator.init(&buf).allocator;
92	const actual = joinWindows(a, paths) catch @panic("fail");
93	testing.expectEqualSlices(u8, expected, actual);
94	}
95
96	fn testJoinPosix(paths: []const []const u8, expected: []const u8) void {
97	var buf: [1024]u8 = undefined;
98	const a = &std.heap.FixedBufferAllocator.init(&buf).allocator;
99	const actual = joinPosix(a, paths) catch @panic("fail");
100	testing.expectEqualSlices(u8, expected, actual);
101	}
102
103	test "join" {
104	testJoinWindows([][]const u8{ "c:\\a\\b", "c" }, "c:\\a\\b\\c");
105	testJoinWindows([][]const u8{ "c:\\a\\b", "c" }, "c:\\a\\b\\c");
106	testJoinWindows([][]const u8{ "c:\\a\\b\\", "c" }, "c:\\a\\b\\c");
107
108	testJoinWindows([][]const u8{ "c:\\", "a", "b\\", "c" }, "c:\\a\\b\\c");
109	testJoinWindows([][]const u8{ "c:\\a\\", "b\\", "c" }, "c:\\a\\b\\c");
110
111	testJoinWindows(
112	[][]const u8{ "c:\\home\\andy\\dev\\zig\\build\\lib\\zig\\std", "io.zig" },
113	"c:\\home\\andy\\dev\\zig\\build\\lib\\zig\\std\\io.zig",
114	);
115
116	testJoinPosix([][]const u8{ "/a/b", "c" }, "/a/b/c");
117	testJoinPosix([][]const u8{ "/a/b/", "c" }, "/a/b/c");
118
119	testJoinPosix([][]const u8{ "/", "a", "b/", "c" }, "/a/b/c");
120	testJoinPosix([][]const u8{ "/a/", "b/", "c" }, "/a/b/c");
121
122	testJoinPosix(
123	[][]const u8{ "/home/andy/dev/zig/build/lib/zig/std", "io.zig" },
124	"/home/andy/dev/zig/build/lib/zig/std/io.zig",
125	);
126
127	testJoinPosix([][]const u8{ "a", "/c" }, "a/c");
128	testJoinPosix([][]const u8{ "a/", "/c" }, "a/c");
129	}
130
131	pub fn isAbsolute(path: []const u8) bool {
132	if (windows.is_the_target) {
133	return isAbsoluteWindows(path);
134	} else {
135	return isAbsolutePosix(path);
136	}
137	}
138
139	pub fn isAbsoluteWindows(path: []const u8) bool {
140	if (path[0] == '/')
141	return true;
142
143	if (path[0] == '\\') {
144	return true;
145	}
146	if (path.len < 3) {
147	return false;
148	}
149	if (path[1] == ':') {
150	if (path[2] == '/')
151	return true;
152	if (path[2] == '\\')
153	return true;
154	}
155	return false;
156	}
157
158	pub fn isAbsolutePosix(path: []const u8) bool {
159	return path[0] == sep_posix;
160	}
161
162	test "isAbsoluteWindows" {
163	testIsAbsoluteWindows("/", true);
164	testIsAbsoluteWindows("//", true);
165	testIsAbsoluteWindows("//server", true);
166	testIsAbsoluteWindows("//server/file", true);
167	testIsAbsoluteWindows("\\\\server\\file", true);
168	testIsAbsoluteWindows("\\\\server", true);
169	testIsAbsoluteWindows("\\\\", true);
170	testIsAbsoluteWindows("c", false);
171	testIsAbsoluteWindows("c:", false);
172	testIsAbsoluteWindows("c:\\", true);
173	testIsAbsoluteWindows("c:/", true);
174	testIsAbsoluteWindows("c://", true);
175	testIsAbsoluteWindows("C:/Users/", true);
176	testIsAbsoluteWindows("C:\\Users\\", true);
177	testIsAbsoluteWindows("C:cwd/another", false);
178	testIsAbsoluteWindows("C:cwd\\another", false);
179	testIsAbsoluteWindows("directory/directory", false);
180	testIsAbsoluteWindows("directory\\directory", false);
181	testIsAbsoluteWindows("/usr/local", true);
182	}
183
184	test "isAbsolutePosix" {
185	testIsAbsolutePosix("/home/foo", true);
186	testIsAbsolutePosix("/home/foo/..", true);
187	testIsAbsolutePosix("bar/", false);
188	testIsAbsolutePosix("./baz", false);
189	}
190
191	fn testIsAbsoluteWindows(path: []const u8, expected_result: bool) void {
192	testing.expectEqual(expected_result, isAbsoluteWindows(path));
193	}
194
195	fn testIsAbsolutePosix(path: []const u8, expected_result: bool) void {
196	testing.expectEqual(expected_result, isAbsolutePosix(path));
197	}
198
199	pub const WindowsPath = struct {
200	is_abs: bool,
201	kind: Kind,
202	disk_designator: []const u8,
203
204	pub const Kind = enum {
205	None,
206	Drive,
207	NetworkShare,
208	};
209	};
210
211	pub fn windowsParsePath(path: []const u8) WindowsPath {
212	if (path.len >= 2 and path[1] == ':') {
213	return WindowsPath{
214	.is_abs = isAbsoluteWindows(path),
215	.kind = WindowsPath.Kind.Drive,
216	.disk_designator = path[0..2],
217	};
218	}
219	if (path.len >= 1 and (path[0] == '/' or path[0] == '\\') and
220	(path.len == 1 or (path[1] != '/' and path[1] != '\\')))
221	{
222	return WindowsPath{
223	.is_abs = true,
224	.kind = WindowsPath.Kind.None,
225	.disk_designator = path[0..0],
226	};
227	}
228	const relative_path = WindowsPath{
229	.kind = WindowsPath.Kind.None,
230	.disk_designator = []u8{},
231	.is_abs = false,
232	};
233	if (path.len < "//a/b".len) {
234	return relative_path;
235	}
236
237	// TODO when I combined these together with `inline for` the compiler crashed
238	{
239	const this_sep = '/';
240	const two_sep = []u8{ this_sep, this_sep };
241	if (mem.startsWith(u8, path, two_sep)) {
242	if (path[2] == this_sep) {
243	return relative_path;
244	}
245
246	var it = mem.tokenize(path, []u8{this_sep});
247	_ = (it.next() orelse return relative_path);
248	_ = (it.next() orelse return relative_path);
249	return WindowsPath{
250	.is_abs = isAbsoluteWindows(path),
251	.kind = WindowsPath.Kind.NetworkShare,
252	.disk_designator = path[0..it.index],
253	};
254	}
255	}
256	{
257	const this_sep = '\\';
258	const two_sep = []u8{ this_sep, this_sep };
259	if (mem.startsWith(u8, path, two_sep)) {
260	if (path[2] == this_sep) {
261	return relative_path;
262	}
263
264	var it = mem.tokenize(path, []u8{this_sep});
265	_ = (it.next() orelse return relative_path);
266	_ = (it.next() orelse return relative_path);
267	return WindowsPath{
268	.is_abs = isAbsoluteWindows(path),
269	.kind = WindowsPath.Kind.NetworkShare,
270	.disk_designator = path[0..it.index],
271	};
272	}
273	}
274	return relative_path;
275	}
276
277	test "windowsParsePath" {
278	{
279	const parsed = windowsParsePath("//a/b");
280	testing.expect(parsed.is_abs);
281	testing.expect(parsed.kind == WindowsPath.Kind.NetworkShare);
282	testing.expect(mem.eql(u8, parsed.disk_designator, "//a/b"));
283	}
284	{
285	const parsed = windowsParsePath("\\\\a\\b");
286	testing.expect(parsed.is_abs);
287	testing.expect(parsed.kind == WindowsPath.Kind.NetworkShare);
288	testing.expect(mem.eql(u8, parsed.disk_designator, "\\\\a\\b"));
289	}
290	{
291	const parsed = windowsParsePath("\\\\a\\");
292	testing.expect(!parsed.is_abs);
293	testing.expect(parsed.kind == WindowsPath.Kind.None);
294	testing.expect(mem.eql(u8, parsed.disk_designator, ""));
295	}
296	{
297	const parsed = windowsParsePath("/usr/local");
298	testing.expect(parsed.is_abs);
299	testing.expect(parsed.kind == WindowsPath.Kind.None);
300	testing.expect(mem.eql(u8, parsed.disk_designator, ""));
301	}
302	{
303	const parsed = windowsParsePath("c:../");
304	testing.expect(!parsed.is_abs);
305	testing.expect(parsed.kind == WindowsPath.Kind.Drive);
306	testing.expect(mem.eql(u8, parsed.disk_designator, "c:"));
307	}
308	}
309
310	pub fn diskDesignator(path: []const u8) []const u8 {
311	if (windows.is_the_target) {
312	return diskDesignatorWindows(path);
313	} else {
314	return "";
315	}
316	}
317
318	pub fn diskDesignatorWindows(path: []const u8) []const u8 {
319	return windowsParsePath(path).disk_designator;
320	}
321
322	fn networkShareServersEql(ns1: []const u8, ns2: []const u8) bool {
323	const sep1 = ns1[0];
324	const sep2 = ns2[0];
325
326	var it1 = mem.tokenize(ns1, []u8{sep1});
327	var it2 = mem.tokenize(ns2, []u8{sep2});
328
329	// TODO ASCII is wrong, we actually need full unicode support to compare paths.
330	return asciiEqlIgnoreCase(it1.next().?, it2.next().?);
331	}
332
333	fn compareDiskDesignators(kind: WindowsPath.Kind, p1: []const u8, p2: []const u8) bool {
334	switch (kind) {
335	WindowsPath.Kind.None => {
336	assert(p1.len == 0);
337	assert(p2.len == 0);
338	return true;
339	},
340	WindowsPath.Kind.Drive => {
341	return asciiUpper(p1[0]) == asciiUpper(p2[0]);
342	},
343	WindowsPath.Kind.NetworkShare => {
344	const sep1 = p1[0];
345	const sep2 = p2[0];
346
347	var it1 = mem.tokenize(p1, []u8{sep1});
348	var it2 = mem.tokenize(p2, []u8{sep2});
349
350	// TODO ASCII is wrong, we actually need full unicode support to compare paths.
351	return asciiEqlIgnoreCase(it1.next().?, it2.next().?) and asciiEqlIgnoreCase(it1.next().?, it2.next().?);
352	},
353	}
354	}
355
356	fn asciiUpper(byte: u8) u8 {
357	return switch (byte) {
358	'a'...'z' => 'A' + (byte - 'a'),
359	else => byte,
360	};
361	}
362
363	fn asciiEqlIgnoreCase(s1: []const u8, s2: []const u8) bool {
364	if (s1.len != s2.len)
365	return false;
366	var i: usize = 0;
367	while (i < s1.len) : (i += 1) {
368	if (asciiUpper(s1[i]) != asciiUpper(s2[i]))
369	return false;
370	}
371	return true;
372	}
373
374	/// On Windows, this calls `resolveWindows` and on POSIX it calls `resolvePosix`.
375	pub fn resolve(allocator: *Allocator, paths: []const []const u8) ![]u8 {
376	if (windows.is_the_target) {
377	return resolveWindows(allocator, paths);
378	} else {
379	return resolvePosix(allocator, paths);
380	}
381	}
382
383	/// This function is like a series of `cd` statements executed one after another.
384	/// It resolves "." and "..".
385	/// The result does not have a trailing path separator.
386	/// If all paths are relative it uses the current working directory as a starting point.
387	/// Each drive has its own current working directory.
388	/// Path separators are canonicalized to '\\' and drives are canonicalized to capital letters.
389	/// Note: all usage of this function should be audited due to the existence of symlinks.
390	/// Without performing actual syscalls, resolving `..` could be incorrect.
391	pub fn resolveWindows(allocator: *Allocator, paths: []const []const u8) ![]u8 {
392	if (paths.len == 0) {
393	assert(windows.is_the_target); // resolveWindows called on non windows can't use getCwd
394	return process.getCwdAlloc(allocator);
395	}
396
397	// determine which disk designator we will result with, if any
398	var result_drive_buf = "_:";
399	var result_disk_designator: []const u8 = "";
400	var have_drive_kind = WindowsPath.Kind.None;
401	var have_abs_path = false;
402	var first_index: usize = 0;
403	var max_size: usize = 0;
404	for (paths) \|p, i\| {
405	const parsed = windowsParsePath(p);
406	if (parsed.is_abs) {
407	have_abs_path = true;
408	first_index = i;
409	max_size = result_disk_designator.len;
410	}
411	switch (parsed.kind) {
412	WindowsPath.Kind.Drive => {
413	result_drive_buf[0] = asciiUpper(parsed.disk_designator[0]);
414	result_disk_designator = result_drive_buf[0..];
415	have_drive_kind = WindowsPath.Kind.Drive;
416	},
417	WindowsPath.Kind.NetworkShare => {
418	result_disk_designator = parsed.disk_designator;
419	have_drive_kind = WindowsPath.Kind.NetworkShare;
420	},
421	WindowsPath.Kind.None => {},
422	}
423	max_size += p.len + 1;
424	}
425
426	// if we will result with a disk designator, loop again to determine
427	// which is the last time the disk designator is absolutely specified, if any
428	// and count up the max bytes for paths related to this disk designator
429	if (have_drive_kind != WindowsPath.Kind.None) {
430	have_abs_path = false;
431	first_index = 0;
432	max_size = result_disk_designator.len;
433	var correct_disk_designator = false;
434
435	for (paths) \|p, i\| {
436	const parsed = windowsParsePath(p);
437	if (parsed.kind != WindowsPath.Kind.None) {
438	if (parsed.kind == have_drive_kind) {
439	correct_disk_designator = compareDiskDesignators(have_drive_kind, result_disk_designator, parsed.disk_designator);
440	} else {
441	continue;
442	}
443	}
444	if (!correct_disk_designator) {
445	continue;
446	}
447	if (parsed.is_abs) {
448	first_index = i;
449	max_size = result_disk_designator.len;
450	have_abs_path = true;
451	}
452	max_size += p.len + 1;
453	}
454	}
455
456	// Allocate result and fill in the disk designator, calling getCwd if we have to.
457	var result: []u8 = undefined;
458	var result_index: usize = 0;
459
460	if (have_abs_path) {
461	switch (have_drive_kind) {
462	WindowsPath.Kind.Drive => {
463	result = try allocator.alloc(u8, max_size);
464
465	mem.copy(u8, result, result_disk_designator);
466	result_index += result_disk_designator.len;
467	},
468	WindowsPath.Kind.NetworkShare => {
469	result = try allocator.alloc(u8, max_size);
470	var it = mem.tokenize(paths[first_index], "/\\");
471	const server_name = it.next().?;
472	const other_name = it.next().?;
473
474	result[result_index] = '\\';
475	result_index += 1;
476	result[result_index] = '\\';
477	result_index += 1;
478	mem.copy(u8, result[result_index..], server_name);
479	result_index += server_name.len;
480	result[result_index] = '\\';
481	result_index += 1;
482	mem.copy(u8, result[result_index..], other_name);
483	result_index += other_name.len;
484
485	result_disk_designator = result[0..result_index];
486	},
487	WindowsPath.Kind.None => {
488	assert(windows.is_the_target); // resolveWindows called on non windows can't use getCwd
489	const cwd = try process.getCwdAlloc(allocator);
490	defer allocator.free(cwd);
491	const parsed_cwd = windowsParsePath(cwd);
492	result = try allocator.alloc(u8, max_size + parsed_cwd.disk_designator.len + 1);
493	mem.copy(u8, result, parsed_cwd.disk_designator);
494	result_index += parsed_cwd.disk_designator.len;
495	result_disk_designator = result[0..parsed_cwd.disk_designator.len];
496	if (parsed_cwd.kind == WindowsPath.Kind.Drive) {
497	result[0] = asciiUpper(result[0]);
498	}
499	have_drive_kind = parsed_cwd.kind;
500	},
501	}
502	} else {
503	assert(windows.is_the_target); // resolveWindows called on non windows can't use getCwd
504	// TODO call get cwd for the result_disk_designator instead of the global one
505	const cwd = try process.getCwdAlloc(allocator);
506	defer allocator.free(cwd);
507
508	result = try allocator.alloc(u8, max_size + cwd.len + 1);
509
510	mem.copy(u8, result, cwd);
511	result_index += cwd.len;
512	const parsed_cwd = windowsParsePath(result[0..result_index]);
513	result_disk_designator = parsed_cwd.disk_designator;
514	if (parsed_cwd.kind == WindowsPath.Kind.Drive) {
515	result[0] = asciiUpper(result[0]);
516	}
517	have_drive_kind = parsed_cwd.kind;
518	}
519	errdefer allocator.free(result);
520
521	// Now we know the disk designator to use, if any, and what kind it is. And our result
522	// is big enough to append all the paths to.
523	var correct_disk_designator = true;
524	for (paths[first_index..]) \|p, i\| {
525	const parsed = windowsParsePath(p);
526
527	if (parsed.kind != WindowsPath.Kind.None) {
528	if (parsed.kind == have_drive_kind) {
529	correct_disk_designator = compareDiskDesignators(have_drive_kind, result_disk_designator, parsed.disk_designator);
530	} else {
531	continue;
532	}
533	}
534	if (!correct_disk_designator) {
535	continue;
536	}
537	var it = mem.tokenize(p[parsed.disk_designator.len..], "/\\");
538	while (it.next()) \|component\| {
539	if (mem.eql(u8, component, ".")) {
540	continue;
541	} else if (mem.eql(u8, component, "..")) {
542	while (true) {
543	if (result_index == 0 or result_index == result_disk_designator.len)
544	break;
545	result_index -= 1;
546	if (result[result_index] == '\\' or result[result_index] == '/')
547	break;
548	}
549	} else {
550	result[result_index] = sep_windows;
551	result_index += 1;
552	mem.copy(u8, result[result_index..], component);
553	result_index += component.len;
554	}
555	}
556	}
557
558	if (result_index == result_disk_designator.len) {
559	result[result_index] = '\\';
560	result_index += 1;
561	}
562
563	return allocator.shrink(result, result_index);
564	}
565
566	/// This function is like a series of `cd` statements executed one after another.
567	/// It resolves "." and "..".
568	/// The result does not have a trailing path separator.
569	/// If all paths are relative it uses the current working directory as a starting point.
570	/// Note: all usage of this function should be audited due to the existence of symlinks.
571	/// Without performing actual syscalls, resolving `..` could be incorrect.
572	pub fn resolvePosix(allocator: *Allocator, paths: []const []const u8) ![]u8 {
573	if (paths.len == 0) {
574	assert(!windows.is_the_target); // resolvePosix called on windows can't use getCwd
575	return process.getCwdAlloc(allocator);
576	}
577
578	var first_index: usize = 0;
579	var have_abs = false;
580	var max_size: usize = 0;
581	for (paths) \|p, i\| {
582	if (isAbsolutePosix(p)) {
583	first_index = i;
584	have_abs = true;
585	max_size = 0;
586	}
587	max_size += p.len + 1;
588	}
589
590	var result: []u8 = undefined;
591	var result_index: usize = 0;
592
593	if (have_abs) {
594	result = try allocator.alloc(u8, max_size);
595	} else {
596	assert(!windows.is_the_target); // resolvePosix called on windows can't use getCwd
597	const cwd = try process.getCwdAlloc(allocator);
598	defer allocator.free(cwd);
599	result = try allocator.alloc(u8, max_size + cwd.len + 1);
600	mem.copy(u8, result, cwd);
601	result_index += cwd.len;
602	}
603	errdefer allocator.free(result);
604
605	for (paths[first_index..]) \|p, i\| {
606	var it = mem.tokenize(p, "/");
607	while (it.next()) \|component\| {
608	if (mem.eql(u8, component, ".")) {
609	continue;
610	} else if (mem.eql(u8, component, "..")) {
611	while (true) {
612	if (result_index == 0)
613	break;
614	result_index -= 1;
615	if (result[result_index] == '/')
616	break;
617	}
618	} else {
619	result[result_index] = '/';
620	result_index += 1;
621	mem.copy(u8, result[result_index..], component);
622	result_index += component.len;
623	}
624	}
625	}
626
627	if (result_index == 0) {
628	result[0] = '/';
629	result_index += 1;
630	}
631
632	return allocator.shrink(result, result_index);
633	}
634
635	test "resolve" {
636	const cwd = try process.getCwdAlloc(debug.global_allocator);
637	if (windows.is_the_target) {
638	if (windowsParsePath(cwd).kind == WindowsPath.Kind.Drive) {
639	cwd[0] = asciiUpper(cwd[0]);
640	}
641	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{"."}), cwd));
642	} else {
643	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "a/b/c/", "../../.." }), cwd));
644	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{"."}), cwd));
645	}
646	}
647
648	test "resolveWindows" {
649	if (windows.is_the_target) {
650	const cwd = try process.getCwdAlloc(debug.global_allocator);
651	const parsed_cwd = windowsParsePath(cwd);
652	{
653	const result = testResolveWindows([][]const u8{ "/usr/local", "lib\\zig\\std\\array_list.zig" });
654	const expected = try join(debug.global_allocator, [][]const u8{
655	parsed_cwd.disk_designator,
656	"usr\\local\\lib\\zig\\std\\array_list.zig",
657	});
658	if (parsed_cwd.kind == WindowsPath.Kind.Drive) {
659	expected[0] = asciiUpper(parsed_cwd.disk_designator[0]);
660	}
661	testing.expect(mem.eql(u8, result, expected));
662	}
663	{
664	const result = testResolveWindows([][]const u8{ "usr/local", "lib\\zig" });
665	const expected = try join(debug.global_allocator, [][]const u8{
666	cwd,
667	"usr\\local\\lib\\zig",
668	});
669	if (parsed_cwd.kind == WindowsPath.Kind.Drive) {
670	expected[0] = asciiUpper(parsed_cwd.disk_designator[0]);
671	}
672	testing.expect(mem.eql(u8, result, expected));
673	}
674	}
675
676	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:\\a\\b\\c", "/hi", "ok" }), "C:\\hi\\ok"));
677	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/blah\\blah", "d:/games", "c:../a" }), "C:\\blah\\a"));
678	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/blah\\blah", "d:/games", "C:../a" }), "C:\\blah\\a"));
679	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/ignore", "d:\\a/b\\c/d", "\\e.exe" }), "D:\\e.exe"));
680	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/ignore", "c:/some/file" }), "C:\\some\\file"));
681	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "d:/ignore", "d:some/dir//" }), "D:\\ignore\\some\\dir"));
682	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "//server/share", "..", "relative\\" }), "\\\\server\\share\\relative"));
683	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "//" }), "C:\\"));
684	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "//dir" }), "C:\\dir"));
685	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "//server/share" }), "\\\\server\\share\\"));
686	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "//server//share" }), "\\\\server\\share\\"));
687	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "///some//dir" }), "C:\\some\\dir"));
688	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "C:\\foo\\tmp.3\\", "..\\tmp.3\\cycles\\root.js" }), "C:\\foo\\tmp.3\\cycles\\root.js"));
689	}
690
691	test "resolvePosix" {
692	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/a/b", "c" }), "/a/b/c"));
693	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/a/b", "c", "//d", "e///" }), "/d/e"));
694	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/a/b/c", "..", "../" }), "/a"));
695	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/", "..", ".." }), "/"));
696	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{"/a/b/c/"}), "/a/b/c"));
697
698	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/var/lib", "../", "file/" }), "/var/file"));
699	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/var/lib", "/../", "file/" }), "/file"));
700	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/some/dir", ".", "/absolute/" }), "/absolute"));
701	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/foo/tmp.3/", "../tmp.3/cycles/root.js" }), "/foo/tmp.3/cycles/root.js"));
702	}
703
704	fn testResolveWindows(paths: []const []const u8) []u8 {
705	return resolveWindows(debug.global_allocator, paths) catch unreachable;
706	}
707
708	fn testResolvePosix(paths: []const []const u8) []u8 {
709	return resolvePosix(debug.global_allocator, paths) catch unreachable;
710	}
711
712	/// If the path is a file in the current directory (no directory component)
713	/// then returns null
714	pub fn dirname(path: []const u8) ?[]const u8 {
715	if (windows.is_the_target) {
716	return dirnameWindows(path);
717	} else {
718	return dirnamePosix(path);
719	}
720	}
721
722	pub fn dirnameWindows(path: []const u8) ?[]const u8 {
723	if (path.len == 0)
724	return null;
725
726	const root_slice = diskDesignatorWindows(path);
727	if (path.len == root_slice.len)
728	return path;
729
730	const have_root_slash = path.len > root_slice.len and (path[root_slice.len] == '/' or path[root_slice.len] == '\\');
731
732	var end_index: usize = path.len - 1;
733
734	while ((path[end_index] == '/' or path[end_index] == '\\') and end_index > root_slice.len) {
735	if (end_index == 0)
736	return null;
737	end_index -= 1;
738	}
739
740	while (path[end_index] != '/' and path[end_index] != '\\' and end_index > root_slice.len) {
741	if (end_index == 0)
742	return null;
743	end_index -= 1;
744	}
745
746	if (have_root_slash and end_index == root_slice.len) {
747	end_index += 1;
748	}
749
750	if (end_index == 0)
751	return null;
752
753	return path[0..end_index];
754	}
755
756	pub fn dirnamePosix(path: []const u8) ?[]const u8 {
757	if (path.len == 0)
758	return null;
759
760	var end_index: usize = path.len - 1;
761	while (path[end_index] == '/') {
762	if (end_index == 0)
763	return path[0..1];
764	end_index -= 1;
765	}
766
767	while (path[end_index] != '/') {
768	if (end_index == 0)
769	return null;
770	end_index -= 1;
771	}
772
773	if (end_index == 0 and path[end_index] == '/')
774	return path[0..1];
775
776	if (end_index == 0)
777	return null;
778
779	return path[0..end_index];
780	}
781
782	test "dirnamePosix" {
783	testDirnamePosix("/a/b/c", "/a/b");
784	testDirnamePosix("/a/b/c///", "/a/b");
785	testDirnamePosix("/a", "/");
786	testDirnamePosix("/", "/");
787	testDirnamePosix("////", "/");
788	testDirnamePosix("", null);
789	testDirnamePosix("a", null);
790	testDirnamePosix("a/", null);
791	testDirnamePosix("a//", null);
792	}
793
794	test "dirnameWindows" {
795	testDirnameWindows("c:\\", "c:\\");
796	testDirnameWindows("c:\\foo", "c:\\");
797	testDirnameWindows("c:\\foo\\", "c:\\");
798	testDirnameWindows("c:\\foo\\bar", "c:\\foo");
799	testDirnameWindows("c:\\foo\\bar\\", "c:\\foo");
800	testDirnameWindows("c:\\foo\\bar\\baz", "c:\\foo\\bar");
801	testDirnameWindows("\\", "\\");
802	testDirnameWindows("\\foo", "\\");
803	testDirnameWindows("\\foo\\", "\\");
804	testDirnameWindows("\\foo\\bar", "\\foo");
805	testDirnameWindows("\\foo\\bar\\", "\\foo");
806	testDirnameWindows("\\foo\\bar\\baz", "\\foo\\bar");
807	testDirnameWindows("c:", "c:");
808	testDirnameWindows("c:foo", "c:");
809	testDirnameWindows("c:foo\\", "c:");
810	testDirnameWindows("c:foo\\bar", "c:foo");
811	testDirnameWindows("c:foo\\bar\\", "c:foo");
812	testDirnameWindows("c:foo\\bar\\baz", "c:foo\\bar");
813	testDirnameWindows("file:stream", null);
814	testDirnameWindows("dir\\file:stream", "dir");
815	testDirnameWindows("\\\\unc\\share", "\\\\unc\\share");
816	testDirnameWindows("\\\\unc\\share\\foo", "\\\\unc\\share\\");
817	testDirnameWindows("\\\\unc\\share\\foo\\", "\\\\unc\\share\\");
818	testDirnameWindows("\\\\unc\\share\\foo\\bar", "\\\\unc\\share\\foo");
819	testDirnameWindows("\\\\unc\\share\\foo\\bar\\", "\\\\unc\\share\\foo");
820	testDirnameWindows("\\\\unc\\share\\foo\\bar\\baz", "\\\\unc\\share\\foo\\bar");
821	testDirnameWindows("/a/b/", "/a");
822	testDirnameWindows("/a/b", "/a");
823	testDirnameWindows("/a", "/");
824	testDirnameWindows("", null);
825	testDirnameWindows("/", "/");
826	testDirnameWindows("////", "/");
827	testDirnameWindows("foo", null);
828	}
829
830	fn testDirnamePosix(input: []const u8, expected_output: ?[]const u8) void {
831	if (dirnamePosix(input)) \|output\| {
832	testing.expect(mem.eql(u8, output, expected_output.?));
833	} else {
834	testing.expect(expected_output == null);
835	}
836	}
837
838	fn testDirnameWindows(input: []const u8, expected_output: ?[]const u8) void {
839	if (dirnameWindows(input)) \|output\| {
840	testing.expect(mem.eql(u8, output, expected_output.?));
841	} else {
842	testing.expect(expected_output == null);
843	}
844	}
845
846	pub fn basename(path: []const u8) []const u8 {
847	if (windows.is_the_target) {
848	return basenameWindows(path);
849	} else {
850	return basenamePosix(path);
851	}
852	}
853
854	pub fn basenamePosix(path: []const u8) []const u8 {
855	if (path.len == 0)
856	return []u8{};
857
858	var end_index: usize = path.len - 1;
859	while (path[end_index] == '/') {
860	if (end_index == 0)
861	return []u8{};
862	end_index -= 1;
863	}
864	var start_index: usize = end_index;
865	end_index += 1;
866	while (path[start_index] != '/') {
867	if (start_index == 0)
868	return path[0..end_index];
869	start_index -= 1;
870	}
871
872	return path[start_index + 1 .. end_index];
873	}
874
875	pub fn basenameWindows(path: []const u8) []const u8 {
876	if (path.len == 0)
877	return []u8{};
878
879	var end_index: usize = path.len - 1;
880	while (true) {
881	const byte = path[end_index];
882	if (byte == '/' or byte == '\\') {
883	if (end_index == 0)
884	return []u8{};
885	end_index -= 1;
886	continue;
887	}
888	if (byte == ':' and end_index == 1) {
889	return []u8{};
890	}
891	break;
892	}
893
894	var start_index: usize = end_index;
895	end_index += 1;
896	while (path[start_index] != '/' and path[start_index] != '\\' and
897	!(path[start_index] == ':' and start_index == 1))
898	{
899	if (start_index == 0)
900	return path[0..end_index];
901	start_index -= 1;
902	}
903
904	return path[start_index + 1 .. end_index];
905	}
906
907	test "basename" {
908	testBasename("", "");
909	testBasename("/", "");
910	testBasename("/dir/basename.ext", "basename.ext");
911	testBasename("/basename.ext", "basename.ext");
912	testBasename("basename.ext", "basename.ext");
913	testBasename("basename.ext/", "basename.ext");
914	testBasename("basename.ext//", "basename.ext");
915	testBasename("/aaa/bbb", "bbb");
916	testBasename("/aaa/", "aaa");
917	testBasename("/aaa/b", "b");
918	testBasename("/a/b", "b");
919	testBasename("//a", "a");
920
921	testBasenamePosix("\\dir\\basename.ext", "\\dir\\basename.ext");
922	testBasenamePosix("\\basename.ext", "\\basename.ext");
923	testBasenamePosix("basename.ext", "basename.ext");
924	testBasenamePosix("basename.ext\\", "basename.ext\\");
925	testBasenamePosix("basename.ext\\\\", "basename.ext\\\\");
926	testBasenamePosix("foo", "foo");
927
928	testBasenameWindows("\\dir\\basename.ext", "basename.ext");
929	testBasenameWindows("\\basename.ext", "basename.ext");
930	testBasenameWindows("basename.ext", "basename.ext");
931	testBasenameWindows("basename.ext\\", "basename.ext");
932	testBasenameWindows("basename.ext\\\\", "basename.ext");
933	testBasenameWindows("foo", "foo");
934	testBasenameWindows("C:", "");
935	testBasenameWindows("C:.", ".");
936	testBasenameWindows("C:\\", "");
937	testBasenameWindows("C:\\dir\\base.ext", "base.ext");
938	testBasenameWindows("C:\\basename.ext", "basename.ext");
939	testBasenameWindows("C:basename.ext", "basename.ext");
940	testBasenameWindows("C:basename.ext\\", "basename.ext");
941	testBasenameWindows("C:basename.ext\\\\", "basename.ext");
942	testBasenameWindows("C:foo", "foo");
943	testBasenameWindows("file:stream", "file:stream");
944	}
945
946	fn testBasename(input: []const u8, expected_output: []const u8) void {
947	testing.expectEqualSlices(u8, expected_output, basename(input));
948	}
949
950	fn testBasenamePosix(input: []const u8, expected_output: []const u8) void {
951	testing.expectEqualSlices(u8, expected_output, basenamePosix(input));
952	}
953
954	fn testBasenameWindows(input: []const u8, expected_output: []const u8) void {
955	testing.expectEqualSlices(u8, expected_output, basenameWindows(input));
956	}
957
958	/// Returns the relative path from `from` to `to`. If `from` and `to` each
959	/// resolve to the same path (after calling `resolve` on each), a zero-length
960	/// string is returned.
961	/// On Windows this canonicalizes the drive to a capital letter and paths to `\\`.
962	pub fn relative(allocator: *Allocator, from: []const u8, to: []const u8) ![]u8 {
963	if (windows.is_the_target) {
964	return relativeWindows(allocator, from, to);
965	} else {
966	return relativePosix(allocator, from, to);
967	}
968	}
969
970	pub fn relativeWindows(allocator: *Allocator, from: []const u8, to: []const u8) ![]u8 {
971	const resolved_from = try resolveWindows(allocator, [][]const u8{from});
972	defer allocator.free(resolved_from);
973
974	var clean_up_resolved_to = true;
975	const resolved_to = try resolveWindows(allocator, [][]const u8{to});
976	defer if (clean_up_resolved_to) allocator.free(resolved_to);
977
978	const parsed_from = windowsParsePath(resolved_from);
979	const parsed_to = windowsParsePath(resolved_to);
980	const result_is_to = x: {
981	if (parsed_from.kind != parsed_to.kind) {
982	break :x true;
983	} else switch (parsed_from.kind) {
984	WindowsPath.Kind.NetworkShare => {
985	break :x !networkShareServersEql(parsed_to.disk_designator, parsed_from.disk_designator);
986	},
987	WindowsPath.Kind.Drive => {
988	break :x asciiUpper(parsed_from.disk_designator[0]) != asciiUpper(parsed_to.disk_designator[0]);
989	},
990	else => unreachable,
991	}
992	};
993
994	if (result_is_to) {
995	clean_up_resolved_to = false;
996	return resolved_to;
997	}
998
999	var from_it = mem.tokenize(resolved_from, "/\\");
1000	var to_it = mem.tokenize(resolved_to, "/\\");
1001	while (true) {
1002	const from_component = from_it.next() orelse return mem.dupe(allocator, u8, to_it.rest());
1003	const to_rest = to_it.rest();
1004	if (to_it.next()) \|to_component\| {
1005	// TODO ASCII is wrong, we actually need full unicode support to compare paths.
1006	if (asciiEqlIgnoreCase(from_component, to_component))
1007	continue;
1008	}
1009	var up_count: usize = 1;
1010	while (from_it.next()) \|_\| {
1011	up_count += 1;
1012	}
1013	const up_index_end = up_count * "..\\".len;
1014	const result = try allocator.alloc(u8, up_index_end + to_rest.len);
1015	errdefer allocator.free(result);
1016
1017	var result_index: usize = 0;
1018	while (result_index < up_index_end) {
1019	result[result_index] = '.';
1020	result_index += 1;
1021	result[result_index] = '.';
1022	result_index += 1;
1023	result[result_index] = '\\';
1024	result_index += 1;
1025	}
1026	// shave off the trailing slash
1027	result_index -= 1;
1028
1029	var rest_it = mem.tokenize(to_rest, "/\\");
1030	while (rest_it.next()) \|to_component\| {
1031	result[result_index] = '\\';
1032	result_index += 1;
1033	mem.copy(u8, result[result_index..], to_component);
1034	result_index += to_component.len;
1035	}
1036
1037	return result[0..result_index];
1038	}
1039
1040	return []u8{};
1041	}
1042
1043	pub fn relativePosix(allocator: *Allocator, from: []const u8, to: []const u8) ![]u8 {
1044	const resolved_from = try resolvePosix(allocator, [][]const u8{from});
1045	defer allocator.free(resolved_from);
1046
1047	const resolved_to = try resolvePosix(allocator, [][]const u8{to});
1048	defer allocator.free(resolved_to);
1049
1050	var from_it = mem.tokenize(resolved_from, "/");
1051	var to_it = mem.tokenize(resolved_to, "/");
1052	while (true) {
1053	const from_component = from_it.next() orelse return mem.dupe(allocator, u8, to_it.rest());
1054	const to_rest = to_it.rest();
1055	if (to_it.next()) \|to_component\| {
1056	if (mem.eql(u8, from_component, to_component))
1057	continue;
1058	}
1059	var up_count: usize = 1;
1060	while (from_it.next()) \|_\| {
1061	up_count += 1;
1062	}
1063	const up_index_end = up_count * "../".len;
1064	const result = try allocator.alloc(u8, up_index_end + to_rest.len);
1065	errdefer allocator.free(result);
1066
1067	var result_index: usize = 0;
1068	while (result_index < up_index_end) {
1069	result[result_index] = '.';
1070	result_index += 1;
1071	result[result_index] = '.';
1072	result_index += 1;
1073	result[result_index] = '/';
1074	result_index += 1;
1075	}
1076	if (to_rest.len == 0) {
1077	// shave off the trailing slash
1078	return result[0 .. result_index - 1];
1079	}
1080
1081	mem.copy(u8, result[result_index..], to_rest);
1082	return result;
1083	}
1084
1085	return []u8{};
1086	}
1087
1088	test "relative" {
1089	testRelativeWindows("c:/blah\\blah", "d:/games", "D:\\games");
1090	testRelativeWindows("c:/aaaa/bbbb", "c:/aaaa", "..");
1091	testRelativeWindows("c:/aaaa/bbbb", "c:/cccc", "..\\..\\cccc");
1092	testRelativeWindows("c:/aaaa/bbbb", "c:/aaaa/bbbb", "");
1093	testRelativeWindows("c:/aaaa/bbbb", "c:/aaaa/cccc", "..\\cccc");
1094	testRelativeWindows("c:/aaaa/", "c:/aaaa/cccc", "cccc");
1095	testRelativeWindows("c:/", "c:\\aaaa\\bbbb", "aaaa\\bbbb");
1096	testRelativeWindows("c:/aaaa/bbbb", "d:\\", "D:\\");
1097	testRelativeWindows("c:/AaAa/bbbb", "c:/aaaa/bbbb", "");
1098	testRelativeWindows("c:/aaaaa/", "c:/aaaa/cccc", "..\\aaaa\\cccc");
1099	testRelativeWindows("C:\\foo\\bar\\baz\\quux", "C:\\", "..\\..\\..\\..");
1100	testRelativeWindows("C:\\foo\\test", "C:\\foo\\test\\bar\\package.json", "bar\\package.json");
1101	testRelativeWindows("C:\\foo\\bar\\baz-quux", "C:\\foo\\bar\\baz", "..\\baz");
1102	testRelativeWindows("C:\\foo\\bar\\baz", "C:\\foo\\bar\\baz-quux", "..\\baz-quux");
1103	testRelativeWindows("\\\\foo\\bar", "\\\\foo\\bar\\baz", "baz");
1104	testRelativeWindows("\\\\foo\\bar\\baz", "\\\\foo\\bar", "..");
1105	testRelativeWindows("\\\\foo\\bar\\baz-quux", "\\\\foo\\bar\\baz", "..\\baz");
1106	testRelativeWindows("\\\\foo\\bar\\baz", "\\\\foo\\bar\\baz-quux", "..\\baz-quux");
1107	testRelativeWindows("C:\\baz-quux", "C:\\baz", "..\\baz");
1108	testRelativeWindows("C:\\baz", "C:\\baz-quux", "..\\baz-quux");
1109	testRelativeWindows("\\\\foo\\baz-quux", "\\\\foo\\baz", "..\\baz");
1110	testRelativeWindows("\\\\foo\\baz", "\\\\foo\\baz-quux", "..\\baz-quux");
1111	testRelativeWindows("C:\\baz", "\\\\foo\\bar\\baz", "\\\\foo\\bar\\baz");
1112	testRelativeWindows("\\\\foo\\bar\\baz", "C:\\baz", "C:\\baz");
1113
1114	testRelativePosix("/var/lib", "/var", "..");
1115	testRelativePosix("/var/lib", "/bin", "../../bin");
1116	testRelativePosix("/var/lib", "/var/lib", "");
1117	testRelativePosix("/var/lib", "/var/apache", "../apache");
1118	testRelativePosix("/var/", "/var/lib", "lib");
1119	testRelativePosix("/", "/var/lib", "var/lib");
1120	testRelativePosix("/foo/test", "/foo/test/bar/package.json", "bar/package.json");
1121	testRelativePosix("/Users/a/web/b/test/mails", "/Users/a/web/b", "../..");
1122	testRelativePosix("/foo/bar/baz-quux", "/foo/bar/baz", "../baz");
1123	testRelativePosix("/foo/bar/baz", "/foo/bar/baz-quux", "../baz-quux");
1124	testRelativePosix("/baz-quux", "/baz", "../baz");
1125	testRelativePosix("/baz", "/baz-quux", "../baz-quux");
1126	}
1127
1128	fn testRelativePosix(from: []const u8, to: []const u8, expected_output: []const u8) void {
1129	const result = relativePosix(debug.global_allocator, from, to) catch unreachable;
1130	testing.expectEqualSlices(u8, expected_output, result);
1131	}
1132
1133	fn testRelativeWindows(from: []const u8, to: []const u8, expected_output: []const u8) void {
1134	const result = relativeWindows(debug.global_allocator, from, to) catch unreachable;
1135	testing.expectEqualSlices(u8, expected_output, result);
1136	}

std/heap.zig+182-189

...	@@ -5,7 +5,6 @@ const testing = std.testing;	...	@@ -5,7 +5,6 @@ const testing = std.testing;
5	const mem = std.mem;	5	const mem = std.mem;
6	const os = std.os;	6	const os = std.os;
7	const builtin = @import("builtin");	7	const builtin = @import("builtin");
8	const Os = builtin.Os;
9	const c = std.c;	8	const c = std.c;
10	const maxInt = std.math.maxInt;	9	const maxInt = std.math.maxInt;
11		10
...	@@ -51,201 +50,195 @@ pub const DirectAllocator = struct {	...	@@ -51,201 +50,195 @@ pub const DirectAllocator = struct {
51	if (n == 0)	50	if (n == 0)
52	return (([*]u8)(undefined))[0..0];	51	return (([*]u8)(undefined))[0..0];
53		52
54	switch (builtin.os) {	53	if (os.windows.is_the_target) {
55	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {	54	const w = os.windows;
56	const p = os.posix;	55
57	const alloc_size = if (alignment <= os.page_size) n else n + alignment;	56	// Although officially it's at least aligned to page boundary,
58	const addr = p.mmap(null, alloc_size, p.PROT_READ \| p.PROT_WRITE, p.MAP_PRIVATE \| p.MAP_ANONYMOUS, -1, 0);	57	// Windows is known to reserve pages on a 64K boundary. It's
59	if (addr == p.MAP_FAILED) return error.OutOfMemory;	58	// even more likely that the requested alignment is <= 64K than
60	if (alloc_size == n) return @intToPtr([*]u8, addr)[0..n];	59	// 4K, so we're just allocating blindly and hoping for the best.
61		60	// see https://devblogs.microsoft.com/oldnewthing/?p=42223
62	const aligned_addr = mem.alignForward(addr, alignment);	61	const addr = w.VirtualAlloc(
63		62	null,
64	// Unmap the extra bytes that were only requested in order to guarantee	63	n,
65	// that the range of memory we were provided had a proper alignment in	64	w.MEM_COMMIT \| w.MEM_RESERVE,
66	// it somewhere. The extra bytes could be at the beginning, or end, or both.	65	w.PAGE_READWRITE,
67	const unused_start_len = aligned_addr - addr;	66	) catch return error.OutOfMemory;
68	if (unused_start_len != 0) {	67
69	const err = p.munmap(addr, unused_start_len);	68	// If the allocation is sufficiently aligned, use it.
70	assert(p.getErrno(err) == 0);	69	if (@ptrToInt(addr) & (alignment - 1) == 0) {
71	}	70	return @ptrCast([*]u8, addr)[0..n];
72	const aligned_end_addr = std.mem.alignForward(aligned_addr + n, os.page_size);	71	}
73	const unused_end_len = addr + alloc_size - aligned_end_addr;
74	if (unused_end_len != 0) {
75	const err = p.munmap(aligned_end_addr, unused_end_len);
76	assert(p.getErrno(err) == 0);
77	}
78		72
79	return @intToPtr([*]u8, aligned_addr)[0..n];	73	// If it wasn't, actually do an explicitely aligned allocation.
80	},	74	w.VirtualFree(addr, 0, w.MEM_RELEASE);
81	.windows => {	75	const alloc_size = n + alignment;
82	const w = os.windows;	76
83		77	const final_addr = while (true) {
84	// Although officially it's at least aligned to page boundary,	78	// Reserve a range of memory large enough to find a sufficiently
85	// Windows is known to reserve pages on a 64K boundary. It's	79	// aligned address.
86	// even more likely that the requested alignment is <= 64K than	80	const reserved_addr = w.VirtualAlloc(
87	// 4K, so we're just allocating blindly and hoping for the best.
88	// see https://devblogs.microsoft.com/oldnewthing/?p=42223
89	const addr = w.VirtualAlloc(
90	null,	81	null,
		82	alloc_size,
		83	w.MEM_RESERVE,
		84	w.PAGE_NOACCESS,
		85	) catch return error.OutOfMemory;
		86	const aligned_addr = mem.alignForward(@ptrToInt(reserved_addr), alignment);
		87
		88	// Release the reserved pages (not actually used).
		89	w.VirtualFree(reserved_addr, 0, w.MEM_RELEASE);
		90
		91	// At this point, it is possible that another thread has
		92	// obtained some memory space that will cause the next
		93	// VirtualAlloc call to fail. To handle this, we will retry
		94	// until it succeeds.
		95	const ptr = w.VirtualAlloc(
		96	@intToPtr(*c_void, aligned_addr),
91	n,	97	n,
92	w.MEM_COMMIT \| w.MEM_RESERVE,	98	w.MEM_COMMIT \| w.MEM_RESERVE,
93	w.PAGE_READWRITE,	99	w.PAGE_READWRITE,
94	) orelse return error.OutOfMemory;	100	) catch continue;
95		101
96	// If the allocation is sufficiently aligned, use it.	102	return @ptrCast([*]u8, ptr)[0..n];
97	if (@ptrToInt(addr) & (alignment - 1) == 0) {	103	};
98	return @ptrCast([*]u8, addr)[0..n];
99	}
100		104
101	// If it wasn't, actually do an explicitely aligned allocation.	105	return @ptrCast([*]u8, final_addr)[0..n];
102	if (w.VirtualFree(addr, 0, w.MEM_RELEASE) == 0) unreachable;
103	const alloc_size = n + alignment;
104
105	const final_addr = while (true) {
106	// Reserve a range of memory large enough to find a sufficiently
107	// aligned address.
108	const reserved_addr = w.VirtualAlloc(
109	null,
110	alloc_size,
111	w.MEM_RESERVE,
112	w.PAGE_NOACCESS,
113	) orelse return error.OutOfMemory;
114	const aligned_addr = mem.alignForward(@ptrToInt(reserved_addr), alignment);
115
116	// Release the reserved pages (not actually used).
117	if (w.VirtualFree(reserved_addr, 0, w.MEM_RELEASE) == 0) unreachable;
118
119	// At this point, it is possible that another thread has
120	// obtained some memory space that will cause the next
121	// VirtualAlloc call to fail. To handle this, we will retry
122	// until it succeeds.
123	if (w.VirtualAlloc(
124	@intToPtr(*c_void, aligned_addr),
125	n,
126	w.MEM_COMMIT \| w.MEM_RESERVE,
127	w.PAGE_READWRITE,
128	)) \|ptr\| break ptr;
129	} else unreachable; // TODO else unreachable should not be necessary
130
131	return @ptrCast([*]u8, final_addr)[0..n];
132	},
133	else => @compileError("Unsupported OS"),
134	}	106	}
		107
		108	const alloc_size = if (alignment <= mem.page_size) n else n + alignment;
		109	const slice = os.mmap(
		110	null,
		111	mem.alignForward(alloc_size, mem.page_size),
		112	os.PROT_READ \| os.PROT_WRITE,
		113	os.MAP_PRIVATE \| os.MAP_ANONYMOUS,
		114	-1,
		115	0,
		116	) catch return error.OutOfMemory;
		117	if (alloc_size == n) return slice[0..n];
		118
		119	const aligned_addr = mem.alignForward(@ptrToInt(slice.ptr), alignment);
		120
		121	// Unmap the extra bytes that were only requested in order to guarantee
		122	// that the range of memory we were provided had a proper alignment in
		123	// it somewhere. The extra bytes could be at the beginning, or end, or both.
		124	const unused_start_len = aligned_addr - @ptrToInt(slice.ptr);
		125	if (unused_start_len != 0) {
		126	os.munmap(slice[0..unused_start_len]);
		127	}
		128	const aligned_end_addr = mem.alignForward(aligned_addr + n, mem.page_size);
		129	const unused_end_len = @ptrToInt(slice.ptr) + slice.len - aligned_end_addr;
		130	if (unused_end_len != 0) {
		131	os.munmap(@intToPtr([*]align(mem.page_size) u8, aligned_end_addr)[0..unused_end_len]);
		132	}
		133
		134	return @intToPtr([*]u8, aligned_addr)[0..n];
135	}	135	}
136		136
137	fn shrink(allocator: *Allocator, old_mem: []u8, old_align: u29, new_size: usize, new_align: u29) []u8 {	137	fn shrink(allocator: *Allocator, old_mem_unaligned: []u8, old_align: u29, new_size: usize, new_align: u29) []u8 {
138	switch (builtin.os) {	138	const old_mem = @alignCast(mem.page_size, old_mem_unaligned);
139	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {	139	if (os.windows.is_the_target) {
		140	const w = os.windows;
		141	if (new_size == 0) {
		142	// From the docs:
		143	// "If the dwFreeType parameter is MEM_RELEASE, this parameter
		144	// must be 0 (zero). The function frees the entire region that
		145	// is reserved in the initial allocation call to VirtualAlloc."
		146	// So we can only use MEM_RELEASE when actually releasing the
		147	// whole allocation.
		148	w.VirtualFree(old_mem.ptr, 0, w.MEM_RELEASE);
		149	} else {
140	const base_addr = @ptrToInt(old_mem.ptr);	150	const base_addr = @ptrToInt(old_mem.ptr);
141	const old_addr_end = base_addr + old_mem.len;	151	const old_addr_end = base_addr + old_mem.len;
142	const new_addr_end = base_addr + new_size;	152	const new_addr_end = base_addr + new_size;
143	const new_addr_end_rounded = mem.alignForward(new_addr_end, os.page_size);	153	const new_addr_end_rounded = mem.alignForward(new_addr_end, mem.page_size);
144	if (old_addr_end > new_addr_end_rounded) {	154	if (old_addr_end > new_addr_end_rounded) {
145	_ = os.posix.munmap(new_addr_end_rounded, old_addr_end - new_addr_end_rounded);	155	// For shrinking that is not releasing, we will only
146	}	156	// decommit the pages not needed anymore.
147	return old_mem[0..new_size];	157	w.VirtualFree(
148	},	158	@intToPtr(*c_void, new_addr_end_rounded),
149	.windows => {	159	old_addr_end - new_addr_end_rounded,
150	const w = os.windows;	160	w.MEM_DECOMMIT,
151	if (new_size == 0) {	161	);
152	// From the docs:
153	// "If the dwFreeType parameter is MEM_RELEASE, this parameter
154	// must be 0 (zero). The function frees the entire region that
155	// is reserved in the initial allocation call to VirtualAlloc."
156	// So we can only use MEM_RELEASE when actually releasing the
157	// whole allocation.
158	if (w.VirtualFree(old_mem.ptr, 0, w.MEM_RELEASE) == 0) unreachable;
159	} else {
160	const base_addr = @ptrToInt(old_mem.ptr);
161	const old_addr_end = base_addr + old_mem.len;
162	const new_addr_end = base_addr + new_size;
163	const new_addr_end_rounded = mem.alignForward(new_addr_end, os.page_size);
164	if (old_addr_end > new_addr_end_rounded) {
165	// For shrinking that is not releasing, we will only
166	// decommit the pages not needed anymore.
167	if (w.VirtualFree(
168	@intToPtr(*c_void, new_addr_end_rounded),
169	old_addr_end - new_addr_end_rounded,
170	w.MEM_DECOMMIT,
171	) == 0) unreachable;
172	}
173	}	162	}
174	return old_mem[0..new_size];	163	}
175	},	164	return old_mem[0..new_size];
176	else => @compileError("Unsupported OS"),	165	}
		166	const base_addr = @ptrToInt(old_mem.ptr);
		167	const old_addr_end = base_addr + old_mem.len;
		168	const new_addr_end = base_addr + new_size;
		169	const new_addr_end_rounded = mem.alignForward(new_addr_end, mem.page_size);
		170	if (old_addr_end > new_addr_end_rounded) {
		171	const ptr = @intToPtr([*]align(mem.page_size) u8, new_addr_end_rounded);
		172	os.munmap(ptr[0 .. old_addr_end - new_addr_end_rounded]);
177	}	173	}
		174	return old_mem[0..new_size];
178	}	175	}
179		176
180	fn realloc(allocator: *Allocator, old_mem: []u8, old_align: u29, new_size: usize, new_align: u29) ![]u8 {	177	fn realloc(allocator: *Allocator, old_mem_unaligned: []u8, old_align: u29, new_size: usize, new_align: u29) ![]u8 {
181	switch (builtin.os) {	178	const old_mem = @alignCast(mem.page_size, old_mem_unaligned);
182	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {	179	if (os.windows.is_the_target) {
183	if (new_size <= old_mem.len and new_align <= old_align) {	180	if (old_mem.len == 0) {
184	return shrink(allocator, old_mem, old_align, new_size, new_align);	181	return alloc(allocator, new_size, new_align);
185	}	182	}
186	const result = try alloc(allocator, new_size, new_align);
187	if (old_mem.len != 0) {
188	@memcpy(result.ptr, old_mem.ptr, std.math.min(old_mem.len, result.len));
189	_ = os.posix.munmap(@ptrToInt(old_mem.ptr), old_mem.len);
190	}
191	return result;
192	},
193	.windows => {
194	if (old_mem.len == 0) {
195	return alloc(allocator, new_size, new_align);
196	}
197
198	if (new_size <= old_mem.len and new_align <= old_align) {
199	return shrink(allocator, old_mem, old_align, new_size, new_align);
200	}
201
202	const w = os.windows;
203	const base_addr = @ptrToInt(old_mem.ptr);
204		183
205	if (new_align > old_align and base_addr & (new_align - 1) != 0) {	184	if (new_size <= old_mem.len and new_align <= old_align) {
206	// Current allocation doesn't satisfy the new alignment.	185	return shrink(allocator, old_mem, old_align, new_size, new_align);
207	// For now we'll do a new one no matter what, but maybe	186	}
208	// there is something smarter to do instead.
209	const result = try alloc(allocator, new_size, new_align);
210	assert(old_mem.len != 0);
211	@memcpy(result.ptr, old_mem.ptr, std.math.min(old_mem.len, result.len));
212	if (w.VirtualFree(old_mem.ptr, 0, w.MEM_RELEASE) == 0) unreachable;
213		187
214	return result;	188	const w = os.windows;
215	}	189	const base_addr = @ptrToInt(old_mem.ptr);
216		190
217	const old_addr_end = base_addr + old_mem.len;	191	if (new_align > old_align and base_addr & (new_align - 1) != 0) {
218	const old_addr_end_rounded = mem.alignForward(old_addr_end, os.page_size);	192	// Current allocation doesn't satisfy the new alignment.
219	const new_addr_end = base_addr + new_size;	193	// For now we'll do a new one no matter what, but maybe
220	const new_addr_end_rounded = mem.alignForward(new_addr_end, os.page_size);	194	// there is something smarter to do instead.
221	if (new_addr_end_rounded == old_addr_end_rounded) {	195	const result = try alloc(allocator, new_size, new_align);
222	// The reallocation fits in the already allocated pages.	196	assert(old_mem.len != 0);
223	return @ptrCast([*]u8, old_mem.ptr)[0..new_size];	197	@memcpy(result.ptr, old_mem.ptr, std.math.min(old_mem.len, result.len));
224	}	198	w.VirtualFree(old_mem.ptr, 0, w.MEM_RELEASE);
225	assert(new_addr_end_rounded > old_addr_end_rounded);
226		199
227	// We need to commit new pages.	200	return result;
228	const additional_size = new_addr_end - old_addr_end_rounded;	201	}
229	const realloc_addr = w.VirtualAlloc(
230	@intToPtr(*c_void, old_addr_end_rounded),
231	additional_size,
232	w.MEM_COMMIT \| w.MEM_RESERVE,
233	w.PAGE_READWRITE,
234	) orelse {
235	// Committing new pages at the end of the existing allocation
236	// failed, we need to try a new one.
237	const new_alloc_mem = try alloc(allocator, new_size, new_align);
238	@memcpy(new_alloc_mem.ptr, old_mem.ptr, old_mem.len);
239	if (w.VirtualFree(old_mem.ptr, 0, w.MEM_RELEASE) == 0) unreachable;
240
241	return new_alloc_mem;
242	};
243		202
244	assert(@ptrToInt(realloc_addr) == old_addr_end_rounded);	203	const old_addr_end = base_addr + old_mem.len;
		204	const old_addr_end_rounded = mem.alignForward(old_addr_end, mem.page_size);
		205	const new_addr_end = base_addr + new_size;
		206	const new_addr_end_rounded = mem.alignForward(new_addr_end, mem.page_size);
		207	if (new_addr_end_rounded == old_addr_end_rounded) {
		208	// The reallocation fits in the already allocated pages.
245	return @ptrCast([*]u8, old_mem.ptr)[0..new_size];	209	return @ptrCast([*]u8, old_mem.ptr)[0..new_size];
246	},	210	}
247	else => @compileError("Unsupported OS"),	211	assert(new_addr_end_rounded > old_addr_end_rounded);
		212
		213	// We need to commit new pages.
		214	const additional_size = new_addr_end - old_addr_end_rounded;
		215	const realloc_addr = w.kernel32.VirtualAlloc(
		216	@intToPtr(*c_void, old_addr_end_rounded),
		217	additional_size,
		218	w.MEM_COMMIT \| w.MEM_RESERVE,
		219	w.PAGE_READWRITE,
		220	) orelse {
		221	// Committing new pages at the end of the existing allocation
		222	// failed, we need to try a new one.
		223	const new_alloc_mem = try alloc(allocator, new_size, new_align);
		224	@memcpy(new_alloc_mem.ptr, old_mem.ptr, old_mem.len);
		225	w.VirtualFree(old_mem.ptr, 0, w.MEM_RELEASE);
		226
		227	return new_alloc_mem;
		228	};
		229
		230	assert(@ptrToInt(realloc_addr) == old_addr_end_rounded);
		231	return @ptrCast([*]u8, old_mem.ptr)[0..new_size];
		232	}
		233	if (new_size <= old_mem.len and new_align <= old_align) {
		234	return shrink(allocator, old_mem, old_align, new_size, new_align);
248	}	235	}
		236	const result = try alloc(allocator, new_size, new_align);
		237	if (old_mem.len != 0) {
		238	@memcpy(result.ptr, old_mem.ptr, std.math.min(old_mem.len, result.len));
		239	os.munmap(old_mem);
		240	}
		241	return result;
249	}	242	}
250	};	243	};
251		244
...	@@ -268,7 +261,7 @@ pub const HeapAllocator = switch (builtin.os) {	...	@@ -268,7 +261,7 @@ pub const HeapAllocator = switch (builtin.os) {
268		261
269	pub fn deinit(self: *HeapAllocator) void {	262	pub fn deinit(self: *HeapAllocator) void {
270	if (self.heap_handle) \|heap_handle\| {	263	if (self.heap_handle) \|heap_handle\| {
271	_ = os.windows.HeapDestroy(heap_handle);	264	os.windows.HeapDestroy(heap_handle);
272	}	265	}
273	}	266	}
274		267
...	@@ -281,12 +274,12 @@ pub const HeapAllocator = switch (builtin.os) {	...	@@ -281,12 +274,12 @@ pub const HeapAllocator = switch (builtin.os) {
281	const optional_heap_handle = @atomicLoad(?HeapHandle, &self.heap_handle, builtin.AtomicOrder.SeqCst);	274	const optional_heap_handle = @atomicLoad(?HeapHandle, &self.heap_handle, builtin.AtomicOrder.SeqCst);
282	const heap_handle = optional_heap_handle orelse blk: {	275	const heap_handle = optional_heap_handle orelse blk: {
283	const options = if (builtin.single_threaded) os.windows.HEAP_NO_SERIALIZE else 0;	276	const options = if (builtin.single_threaded) os.windows.HEAP_NO_SERIALIZE else 0;
284	const hh = os.windows.HeapCreate(options, amt, 0) orelse return error.OutOfMemory;	277	const hh = os.windows.kernel32.HeapCreate(options, amt, 0) orelse return error.OutOfMemory;
285	const other_hh = @cmpxchgStrong(?HeapHandle, &self.heap_handle, null, hh, builtin.AtomicOrder.SeqCst, builtin.AtomicOrder.SeqCst) orelse break :blk hh;	278	const other_hh = @cmpxchgStrong(?HeapHandle, &self.heap_handle, null, hh, builtin.AtomicOrder.SeqCst, builtin.AtomicOrder.SeqCst) orelse break :blk hh;
286	_ = os.windows.HeapDestroy(hh);	279	os.windows.HeapDestroy(hh);
287	break :blk other_hh.?; // can't be null because of the cmpxchg	280	break :blk other_hh.?; // can't be null because of the cmpxchg
288	};	281	};
289	const ptr = os.windows.HeapAlloc(heap_handle, 0, amt) orelse return error.OutOfMemory;	282	const ptr = os.windows.kernel32.HeapAlloc(heap_handle, 0, amt) orelse return error.OutOfMemory;
290	const root_addr = @ptrToInt(ptr);	283	const root_addr = @ptrToInt(ptr);
291	const adjusted_addr = mem.alignForward(root_addr, alignment);	284	const adjusted_addr = mem.alignForward(root_addr, alignment);
292	const record_addr = adjusted_addr + n;	285	const record_addr = adjusted_addr + n;
...	@@ -316,12 +309,12 @@ pub const HeapAllocator = switch (builtin.os) {	...	@@ -316,12 +309,12 @@ pub const HeapAllocator = switch (builtin.os) {
316	const old_ptr = @intToPtr(*c_void, root_addr);	309	const old_ptr = @intToPtr(*c_void, root_addr);
317		310
318	if (new_size == 0) {	311	if (new_size == 0) {
319	if (os.windows.HeapFree(self.heap_handle.?, 0, old_ptr) == 0) unreachable;	312	os.windows.HeapFree(self.heap_handle.?, 0, old_ptr);
320	return old_mem[0..0];	313	return old_mem[0..0];
321	}	314	}
322		315
323	const amt = new_size + new_align + @sizeOf(usize);	316	const amt = new_size + new_align + @sizeOf(usize);
324	const new_ptr = os.windows.HeapReAlloc(	317	const new_ptr = os.windows.kernel32.HeapReAlloc(
325	self.heap_handle.?,	318	self.heap_handle.?,
326	0,	319	0,
327	old_ptr,	320	old_ptr,
...	@@ -386,7 +379,7 @@ pub const ArenaAllocator = struct {	...	@@ -386,7 +379,7 @@ pub const ArenaAllocator = struct {
386	var len = prev_len;	379	var len = prev_len;
387	while (true) {	380	while (true) {
388	len += len / 2;	381	len += len / 2;
389	len += os.page_size - @rem(len, os.page_size);	382	len += mem.page_size - @rem(len, mem.page_size);
390	if (len >= actual_min_size) break;	383	if (len >= actual_min_size) break;
391	}	384	}
392	const buf = try self.child_allocator.alignedAlloc(u8, @alignOf(BufNode), len);	385	const buf = try self.child_allocator.alignedAlloc(u8, @alignOf(BufNode), len);
...	@@ -532,11 +525,11 @@ const WasmAllocator = struct {	...	@@ -532,11 +525,11 @@ const WasmAllocator = struct {
532	const adjusted_index = self.end_index + (adjusted_addr - addr);	525	const adjusted_index = self.end_index + (adjusted_addr - addr);
533	const new_end_index = adjusted_index + size;	526	const new_end_index = adjusted_index + size;
534		527
535	if (new_end_index > self.num_pages * os.page_size) {	528	if (new_end_index > self.num_pages * mem.page_size) {
536	const required_memory = new_end_index - (self.num_pages * os.page_size);	529	const required_memory = new_end_index - (self.num_pages * mem.page_size);
537		530
538	var num_pages: usize = required_memory / os.page_size;	531	var num_pages: usize = required_memory / mem.page_size;
539	if (required_memory % os.page_size != 0) {	532	if (required_memory % mem.page_size != 0) {
540	num_pages += 1;	533	num_pages += 1;
541	}	534	}
542		535
...	@@ -565,14 +558,14 @@ const WasmAllocator = struct {	...	@@ -565,14 +558,14 @@ const WasmAllocator = struct {
565		558
566	// Initialize start_ptr at the first realloc	559	// Initialize start_ptr at the first realloc
567	if (self.num_pages == 0) {	560	if (self.num_pages == 0) {
568	self.start_ptr = @intToPtr([]u8, @intCast(usize, @"llvm.wasm.memory.size.i32"(0)) os.page_size);	561	self.start_ptr = @intToPtr([]u8, @intCast(usize, @"llvm.wasm.memory.size.i32"(0)) mem.page_size);
569	}	562	}
570		563
571	if (is_last_item(allocator, old_mem, new_align)) {	564	if (is_last_item(allocator, old_mem, new_align)) {
572	const start_index = self.end_index - old_mem.len;	565	const start_index = self.end_index - old_mem.len;
573	const new_end_index = start_index + new_size;	566	const new_end_index = start_index + new_size;
574		567
575	if (new_end_index > self.num_pages * os.page_size) {	568	if (new_end_index > self.num_pages * mem.page_size) {
576	_ = try alloc(allocator, new_end_index - self.end_index, new_align);	569	_ = try alloc(allocator, new_end_index - self.end_index, new_align);
577	}	570	}
578	const result = self.start_ptr[start_index..new_end_index];	571	const result = self.start_ptr[start_index..new_end_index];
...	@@ -888,10 +881,10 @@ fn testAllocatorAligned(allocator: *mem.Allocator, comptime alignment: u29) !voi	...	@@ -888,10 +881,10 @@ fn testAllocatorAligned(allocator: *mem.Allocator, comptime alignment: u29) !voi
888	fn testAllocatorLargeAlignment(allocator: *mem.Allocator) mem.Allocator.Error!void {	881	fn testAllocatorLargeAlignment(allocator: *mem.Allocator) mem.Allocator.Error!void {
889	//Maybe a platform's page_size is actually the same as or	882	//Maybe a platform's page_size is actually the same as or
890	// very near usize?	883	// very near usize?
891	if (os.page_size << 2 > maxInt(usize)) return;	884	if (mem.page_size << 2 > maxInt(usize)) return;
892		885
893	const USizeShift = @IntType(false, std.math.log2(usize.bit_count));	886	const USizeShift = @IntType(false, std.math.log2(usize.bit_count));
894	const large_align = u29(os.page_size << 2);	887	const large_align = u29(mem.page_size << 2);
895		888
896	var align_mask: usize = undefined;	889	var align_mask: usize = undefined;
897	_ = @shlWithOverflow(usize, ~usize(0), USizeShift(@ctz(u29, large_align)), &align_mask);	890	_ = @shlWithOverflow(usize, ~usize(0), USizeShift(@ctz(u29, large_align)), &align_mask);
...	@@ -918,7 +911,7 @@ fn testAllocatorAlignedShrink(allocator: *mem.Allocator) mem.Allocator.Error!voi	...	@@ -918,7 +911,7 @@ fn testAllocatorAlignedShrink(allocator: *mem.Allocator) mem.Allocator.Error!voi
918	var debug_buffer: [1000]u8 = undefined;	911	var debug_buffer: [1000]u8 = undefined;
919	const debug_allocator = &FixedBufferAllocator.init(&debug_buffer).allocator;	912	const debug_allocator = &FixedBufferAllocator.init(&debug_buffer).allocator;
920		913
921	const alloc_size = os.page_size * 2 + 50;	914	const alloc_size = mem.page_size * 2 + 50;
922	var slice = try allocator.alignedAlloc(u8, 16, alloc_size);	915	var slice = try allocator.alignedAlloc(u8, 16, alloc_size);
923	defer allocator.free(slice);	916	defer allocator.free(slice);
924		917
...	@@ -927,7 +920,7 @@ fn testAllocatorAlignedShrink(allocator: *mem.Allocator) mem.Allocator.Error!voi	...	@@ -927,7 +920,7 @@ fn testAllocatorAlignedShrink(allocator: *mem.Allocator) mem.Allocator.Error!voi
927	// which is 16 pages, hence the 32. This test may require to increase	920	// which is 16 pages, hence the 32. This test may require to increase
928	// the size of the allocations feeding the `allocator` parameter if they	921	// the size of the allocations feeding the `allocator` parameter if they
929	// fail, because of this high over-alignment we want to have.	922	// fail, because of this high over-alignment we want to have.
930	while (@ptrToInt(slice.ptr) == mem.alignForward(@ptrToInt(slice.ptr), os.page_size * 32)) {	923	while (@ptrToInt(slice.ptr) == mem.alignForward(@ptrToInt(slice.ptr), mem.page_size * 32)) {
931	try stuff_to_free.append(slice);	924	try stuff_to_free.append(slice);
932	slice = try allocator.alignedAlloc(u8, 16, alloc_size);	925	slice = try allocator.alignedAlloc(u8, 16, alloc_size);
933	}	926	}
...	@@ -938,7 +931,7 @@ fn testAllocatorAlignedShrink(allocator: *mem.Allocator) mem.Allocator.Error!voi	...	@@ -938,7 +931,7 @@ fn testAllocatorAlignedShrink(allocator: *mem.Allocator) mem.Allocator.Error!voi
938	slice[60] = 0x34;	931	slice[60] = 0x34;
939		932
940	// realloc to a smaller size but with a larger alignment	933	// realloc to a smaller size but with a larger alignment
941	slice = try allocator.alignedRealloc(slice, os.page_size * 32, alloc_size / 2);	934	slice = try allocator.alignedRealloc(slice, mem.page_size * 32, alloc_size / 2);
942	testing.expect(slice[0] == 0x12);	935	testing.expect(slice[0] == 0x12);
943	testing.expect(slice[60] == 0x34);	936	testing.expect(slice[60] == 0x34);
944	}	937	}

std/io.zig+30-24

...	@@ -1,38 +1,44 @@	...	@@ -1,38 +1,44 @@
1	const std = @import("std.zig");	1	const std = @import("std.zig");
2	const builtin = @import("builtin");	2	const builtin = @import("builtin");
3	const Os = builtin.Os;
4	const c = std.c;	3	const c = std.c;
5		4
6	const math = std.math;	5	const math = std.math;
7	const debug = std.debug;	6	const debug = std.debug;
8	const assert = debug.assert;	7	const assert = debug.assert;
9	const os = std.os;	8	const os = std.os;
		9	const fs = std.fs;
10	const mem = std.mem;	10	const mem = std.mem;
11	const meta = std.meta;	11	const meta = std.meta;
12	const trait = meta.trait;	12	const trait = meta.trait;
13	const Buffer = std.Buffer;	13	const Buffer = std.Buffer;
14	const fmt = std.fmt;	14	const fmt = std.fmt;
15	const File = std.os.File;	15	const File = std.fs.File;
16	const testing = std.testing;	16	const testing = std.testing;
17		17
18	const is_posix = builtin.os != builtin.Os.windows;	18	pub const GetStdIoError = os.windows.GetStdHandleError;
19	const is_windows = builtin.os == builtin.Os.windows;
20		19
21	const GetStdIoErrs = os.WindowsGetStdHandleErrs;	20	pub fn getStdOut() GetStdIoError!File {
22		21	if (os.windows.is_the_target) {
23	pub fn getStdErr() GetStdIoErrs!File {	22	const handle = try os.windows.GetStdHandle(os.windows.STD_OUTPUT_HANDLE);
24	const handle = if (is_windows) try os.windowsGetStdHandle(os.windows.STD_ERROR_HANDLE) else if (is_posix) os.posix.STDERR_FILENO else unreachable;	23	return File.openHandle(handle);
25	return File.openHandle(handle);	24	}
		25	return File.openHandle(os.STDOUT_FILENO);
26	}	26	}
27		27
28	pub fn getStdOut() GetStdIoErrs!File {	28	pub fn getStdErr() GetStdIoError!File {
29	const handle = if (is_windows) try os.windowsGetStdHandle(os.windows.STD_OUTPUT_HANDLE) else if (is_posix) os.posix.STDOUT_FILENO else unreachable;	29	if (os.windows.is_the_target) {
30	return File.openHandle(handle);	30	const handle = try os.windows.GetStdHandle(os.windows.STD_ERROR_HANDLE);
		31	return File.openHandle(handle);
		32	}
		33	return File.openHandle(os.STDERR_FILENO);
31	}	34	}
32		35
33	pub fn getStdIn() GetStdIoErrs!File {	36	pub fn getStdIn() GetStdIoError!File {
34	const handle = if (is_windows) try os.windowsGetStdHandle(os.windows.STD_INPUT_HANDLE) else if (is_posix) os.posix.STDIN_FILENO else unreachable;	37	if (os.windows.is_the_target) {
35	return File.openHandle(handle);	38	const handle = try os.windows.GetStdHandle(os.windows.STD_INPUT_HANDLE);
		39	return File.openHandle(handle);
		40	}
		41	return File.openHandle(os.STDIN_FILENO);
36	}	42	}
37		43
38	pub const SeekableStream = @import("io/seekable_stream.zig").SeekableStream;	44	pub const SeekableStream = @import("io/seekable_stream.zig").SeekableStream;
...	@@ -66,7 +72,7 @@ pub fn InStream(comptime ReadError: type) type {	...	@@ -66,7 +72,7 @@ pub fn InStream(comptime ReadError: type) type {
66	return;	72	return;
67	}	73	}
68		74
69	const new_buf_size = math.min(max_size, actual_buf_len + os.page_size);	75	const new_buf_size = math.min(max_size, actual_buf_len + mem.page_size);
70	if (new_buf_size == actual_buf_len) return error.StreamTooLong;	76	if (new_buf_size == actual_buf_len) return error.StreamTooLong;
71	try buffer.resize(new_buf_size);	77	try buffer.resize(new_buf_size);
72	}	78	}
...	@@ -301,7 +307,7 @@ pub fn readFileAllocAligned(allocator: *mem.Allocator, path: []const u8, comptim	...	@@ -301,7 +307,7 @@ pub fn readFileAllocAligned(allocator: *mem.Allocator, path: []const u8, comptim
301	}	307	}
302		308
303	pub fn BufferedInStream(comptime Error: type) type {	309	pub fn BufferedInStream(comptime Error: type) type {
304	return BufferedInStreamCustom(os.page_size, Error);	310	return BufferedInStreamCustom(mem.page_size, Error);
305	}	311	}
306		312
307	pub fn BufferedInStreamCustom(comptime buffer_size: usize, comptime Error: type) type {	313	pub fn BufferedInStreamCustom(comptime buffer_size: usize, comptime Error: type) type {
...	@@ -774,7 +780,7 @@ test "io.CountingOutStream" {	...	@@ -774,7 +780,7 @@ test "io.CountingOutStream" {
774	}	780	}
775		781
776	pub fn BufferedOutStream(comptime Error: type) type {	782	pub fn BufferedOutStream(comptime Error: type) type {
777	return BufferedOutStreamCustom(os.page_size, Error);	783	return BufferedOutStreamCustom(mem.page_size, Error);
778	}	784	}
779		785
780	pub fn BufferedOutStreamCustom(comptime buffer_size: usize, comptime OutStreamError: type) type {	786	pub fn BufferedOutStreamCustom(comptime buffer_size: usize, comptime OutStreamError: type) type {
...	@@ -979,9 +985,9 @@ pub fn BitOutStream(endian: builtin.Endian, comptime Error: type) type {	...	@@ -979,9 +985,9 @@ pub fn BitOutStream(endian: builtin.Endian, comptime Error: type) type {
979	}	985	}
980		986
981	pub const BufferedAtomicFile = struct {	987	pub const BufferedAtomicFile = struct {
982	atomic_file: os.AtomicFile,	988	atomic_file: fs.AtomicFile,
983	file_stream: os.File.OutStream,	989	file_stream: File.OutStream,
984	buffered_stream: BufferedOutStream(os.File.WriteError),	990	buffered_stream: BufferedOutStream(File.WriteError),
985	allocator: *mem.Allocator,	991	allocator: *mem.Allocator,
986		992
987	pub fn create(allocator: mem.Allocator, dest_path: []const u8) !BufferedAtomicFile {	993	pub fn create(allocator: mem.Allocator, dest_path: []const u8) !BufferedAtomicFile {
...	@@ -995,11 +1001,11 @@ pub const BufferedAtomicFile = struct {	...	@@ -995,11 +1001,11 @@ pub const BufferedAtomicFile = struct {
995	};	1001	};
996	errdefer allocator.destroy(self);	1002	errdefer allocator.destroy(self);
997		1003
998	self.atomic_file = try os.AtomicFile.init(dest_path, os.File.default_mode);	1004	self.atomic_file = try fs.AtomicFile.init(dest_path, File.default_mode);
999	errdefer self.atomic_file.deinit();	1005	errdefer self.atomic_file.deinit();
1000		1006
1001	self.file_stream = self.atomic_file.file.outStream();	1007	self.file_stream = self.atomic_file.file.outStream();
1002	self.buffered_stream = BufferedOutStream(os.File.WriteError).init(&self.file_stream.stream);	1008	self.buffered_stream = BufferedOutStream(File.WriteError).init(&self.file_stream.stream);
1003	return self;	1009	return self;
1004	}	1010	}
1005		1011
...	@@ -1014,7 +1020,7 @@ pub const BufferedAtomicFile = struct {	...	@@ -1014,7 +1020,7 @@ pub const BufferedAtomicFile = struct {
1014	try self.atomic_file.finish();	1020	try self.atomic_file.finish();
1015	}	1021	}
1016		1022
1017	pub fn stream(self: BufferedAtomicFile) OutStream(os.File.WriteError) {	1023	pub fn stream(self: BufferedAtomicFile) OutStream(File.WriteError) {
1018	return &self.buffered_stream.stream;	1024	return &self.buffered_stream.stream;
1019	}	1025	}
1020	};	1026	};

std/io/c_out_stream.zig+17-22

...	@@ -1,13 +1,13 @@	...	@@ -1,13 +1,13 @@
1	const std = @import("../std.zig");	1	const std = @import("../std.zig");
		2	const os = std.os;
2	const OutStream = std.io.OutStream;	3	const OutStream = std.io.OutStream;
3	const builtin = @import("builtin");	4	const builtin = @import("builtin");
4	const posix = std.os.posix;
5		5
6	/// TODO make std.os.FILE use *FILE when linking libc and this just becomes	6	/// TODO make a proposal to make `std.fs.File` use *FILE when linking libc and this just becomes
7	/// std.io.FileOutStream because std.os.File.write would do this when linking	7	/// std.io.FileOutStream because std.fs.File.write would do this when linking
8	/// libc.	8	/// libc.
9	pub const COutStream = struct {	9	pub const COutStream = struct {
10	pub const Error = std.os.File.WriteError;	10	pub const Error = std.fs.File.WriteError;
11	pub const Stream = OutStream(Error);	11	pub const Stream = OutStream(Error);
12		12
13	stream: Stream,	13	stream: Stream,
...	@@ -24,25 +24,20 @@ pub const COutStream = struct {	...	@@ -24,25 +24,20 @@ pub const COutStream = struct {
24	const self = @fieldParentPtr(COutStream, "stream", out_stream);	24	const self = @fieldParentPtr(COutStream, "stream", out_stream);
25	const amt_written = std.c.fwrite(bytes.ptr, 1, bytes.len, self.c_file);	25	const amt_written = std.c.fwrite(bytes.ptr, 1, bytes.len, self.c_file);
26	if (amt_written == bytes.len) return;	26	if (amt_written == bytes.len) return;
27	// TODO errno on windows. should we have a posix layer for windows?	27	switch (std.c._errno().*) {
28	if (builtin.os == .windows) {
29	return error.InputOutput;
30	}
31	const errno = std.c._errno().*;
32	switch (errno) {
33	0 => unreachable,	28	0 => unreachable,
34	posix.EINVAL => unreachable,	29	os.EINVAL => unreachable,
35	posix.EFAULT => unreachable,	30	os.EFAULT => unreachable,
36	posix.EAGAIN => unreachable, // this is a blocking API	31	os.EAGAIN => unreachable, // this is a blocking API
37	posix.EBADF => unreachable, // always a race condition	32	os.EBADF => unreachable, // always a race condition
38	posix.EDESTADDRREQ => unreachable, // connect was never called	33	os.EDESTADDRREQ => unreachable, // connect was never called
39	posix.EDQUOT => return error.DiskQuota,	34	os.EDQUOT => return error.DiskQuota,
40	posix.EFBIG => return error.FileTooBig,	35	os.EFBIG => return error.FileTooBig,
41	posix.EIO => return error.InputOutput,	36	os.EIO => return error.InputOutput,
42	posix.ENOSPC => return error.NoSpaceLeft,	37	os.ENOSPC => return error.NoSpaceLeft,
43	posix.EPERM => return error.AccessDenied,	38	os.EPERM => return error.AccessDenied,
44	posix.EPIPE => return error.BrokenPipe,	39	os.EPIPE => return error.BrokenPipe,
45	else => return std.os.unexpectedErrorPosix(@intCast(usize, errno)),	40	else => \|err\| return os.unexpectedErrno(@intCast(usize, err)),
46	}	41	}
47	}	42	}
48	};	43	};

std/io/seekable_stream.zig+5-5

std/io/test.zig+16-15

 @@ -1,3 +1,4 @@
+const builtin = @import("builtin");
 const std = @import("../std.zig");
 const io = std.io;
 const meta = std.meta;
 @@ -6,8 +7,8 @@ const DefaultPrng = std.rand.DefaultPrng;
 const expect = std.testing.expect;
 const expectError = std.testing.expectError;
 const mem = std.mem;
-const os = std.os;
+const fs = std.fs;
-const builtin = @import("builtin");
+const File = std.fs.File;
 test "write a file, read it, then delete it" {
     var raw_bytes: [200 * 1024]u8 = undefined;
 @@ -18,11 +19,11 @@ test "write a file, read it, then delete it" {
     prng.random.bytes(data[0..]);
     const tmp_file_name = "temp_test_file.txt";
     {
-        var file = try os.File.openWrite(tmp_file_name);
+        var file = try File.openWrite(tmp_file_name);
         defer file.close();
         var file_out_stream = file.outStream();
-        var buf_stream = io.BufferedOutStream(os.File.WriteError).init(&file_out_stream.stream);
+        var buf_stream = io.BufferedOutStream(File.WriteError).init(&file_out_stream.stream);
         const st = &buf_stream.stream;
         try st.print("begin");
         try st.write(data[0..]);
 @@ -32,15 +33,15 @@ test "write a file, read it, then delete it" {
     {
         // make sure openWriteNoClobber doesn't harm the file
-        if (os.File.openWriteNoClobber(tmp_file_name, os.File.default_mode)) |file| {
+        if (File.openWriteNoClobber(tmp_file_name, File.default_mode)) |file| {
             unreachable;
         } else |err| {
-            std.debug.assert(err == os.File.OpenError.PathAlreadyExists);
+            std.debug.assert(err == File.OpenError.PathAlreadyExists);
         }
     }
     {
-        var file = try os.File.openRead(tmp_file_name);
+        var file = try File.openRead(tmp_file_name);
         defer file.close();
         const file_size = try file.getEndPos();
 @@ -48,7 +49,7 @@ test "write a file, read it, then delete it" {
         expect(file_size == expected_file_size);
         var file_in_stream = file.inStream();
-        var buf_stream = io.BufferedInStream(os.File.ReadError).init(&file_in_stream.stream);
+        var buf_stream = io.BufferedInStream(File.ReadError).init(&file_in_stream.stream);
         const st = &buf_stream.stream;
         const contents = try st.readAllAlloc(allocator, 2 * 1024);
         defer allocator.free(contents);
 @@ -57,7 +58,7 @@ test "write a file, read it, then delete it" {
         expect(mem.eql(u8, contents["begin".len .. contents.len - "end".len], data));
         expect(mem.eql(u8, contents[contents.len - "end".len ..], "end"));
     }
-    try os.deleteFile(tmp_file_name);
+    try fs.deleteFile(tmp_file_name);
 }
 test "BufferOutStream" {
 @@ -273,12 +274,12 @@ test "BitOutStream" {
 test "BitStreams with File Stream" {
     const tmp_file_name = "temp_test_file.txt";
     {
-        var file = try os.File.openWrite(tmp_file_name);
+        var file = try File.openWrite(tmp_file_name);
         defer file.close();
         var file_out = file.outStream();
         var file_out_stream = &file_out.stream;
-        const OutError = os.File.WriteError;
+        const OutError = File.WriteError;
         var bit_stream = io.BitOutStream(builtin.endian, OutError).init(file_out_stream);
         try bit_stream.writeBits(u2(1), 1);
 @@ -290,12 +291,12 @@ test "BitStreams with File Stream" {
         try bit_stream.flushBits();
     }
     {
-        var file = try os.File.openRead(tmp_file_name);
+        var file = try File.openRead(tmp_file_name);
         defer file.close();
         var file_in = file.inStream();
         var file_in_stream = &file_in.stream;
-        const InError = os.File.ReadError;
+        const InError = File.ReadError;
         var bit_stream = io.BitInStream(builtin.endian, InError).init(file_in_stream);
         var out_bits: usize = undefined;
 @@ -315,7 +316,7 @@ test "BitStreams with File Stream" {
         expectError(error.EndOfStream, bit_stream.readBitsNoEof(u1, 1));
     }
-    try os.deleteFile(tmp_file_name);
+    try fs.deleteFile(tmp_file_name);
 }
 fn testIntSerializerDeserializer(comptime endian: builtin.Endian, comptime packing: io.Packing) !void {
 @@ -595,7 +596,7 @@ test "c out stream" {
     const filename = c"tmp_io_test_file.txt";
     const out_file = std.c.fopen(filename, c"w") orelse return error.UnableToOpenTestFile;
-    defer std.os.deleteFileC(filename) catch {};
+    defer fs.deleteFileC(filename) catch {};
     const out_stream = &io.COutStream.init(out_file).stream;
     try out_stream.print("hi: {}\n", i32(123));

std/mem.zig+55-23

 @@ -8,6 +8,11 @@ const meta = std.meta;
 const trait = meta.trait;
 const testing = std.testing;
+pub const page_size = switch (builtin.arch) {
+    .wasm32, .wasm64 => 64 * 1024,
+    else => 4 * 1024,
+};
 pub const Allocator = struct {
     pub const Error = error{OutOfMemory};
 @@ -580,14 +585,14 @@ pub fn readIntSlice(comptime T: type, bytes: []const u8, endian: builtin.Endian)
 test "comptime read/write int" {
     comptime {
         var bytes: [2]u8 = undefined;
-        std.mem.writeIntLittle(u16, &bytes, 0x1234);
+        writeIntLittle(u16, &bytes, 0x1234);
-        const result = std.mem.readIntBig(u16, &bytes);
+        const result = readIntBig(u16, &bytes);
         testing.expect(result == 0x3412);
     }
     comptime {
         var bytes: [2]u8 = undefined;
-        std.mem.writeIntBig(u16, &bytes, 0x1234);
+        writeIntBig(u16, &bytes, 0x1234);
-        const result = std.mem.readIntLittle(u16, &bytes);
+        const result = readIntLittle(u16, &bytes);
         testing.expect(result == 0x3412);
     }
 }
 @@ -1048,7 +1053,7 @@ fn testReadIntImpl() void {
     }
 }
-test "std.mem.writeIntSlice" {
+test "writeIntSlice" {
     testWriteIntImpl();
     comptime testWriteIntImpl();
 }
 @@ -1179,7 +1184,7 @@ pub fn reverse(comptime T: type, items: []T) void {
     }
 }
-test "std.mem.reverse" {
+test "reverse" {
     var arr = []i32{
         5,
         3,
 @@ -1206,7 +1211,7 @@ pub fn rotate(comptime T: type, items: []T, amount: usize) void {
     reverse(T, items);
 }
-test "std.mem.rotate" {
+test "rotate" {
     var arr = []i32{
         5,
         3,
 @@ -1291,14 +1296,14 @@ pub fn asBytes(ptr: var) AsBytesReturnType(@typeOf(ptr)) {
     return @ptrCast(AsBytesReturnType(P), ptr);
 }
-test "std.mem.asBytes" {
+test "asBytes" {
     const deadbeef = u32(0xDEADBEEF);
     const deadbeef_bytes = switch (builtin.endian) {
         builtin.Endian.Big => "\xDE\xAD\xBE\xEF",
         builtin.Endian.Little => "\xEF\xBE\xAD\xDE",
     };
-    testing.expect(std.mem.eql(u8, asBytes(&deadbeef), deadbeef_bytes));
+    testing.expect(eql(u8, asBytes(&deadbeef), deadbeef_bytes));
     var codeface = u32(0xC0DEFACE);
     for (asBytes(&codeface).*) |*b|
 @@ -1318,7 +1323,7 @@ test "std.mem.asBytes" {
         .c = 0xDE,
         .d = 0xA1,
     };
-    testing.expect(std.mem.eql(u8, asBytes(&inst), "\xBE\xEF\xDE\xA1"));
+    testing.expect(eql(u8, asBytes(&inst), "\xBE\xEF\xDE\xA1"));
 }
 ///Given any value, returns a copy of its bytes in an array.
 @@ -1326,17 +1331,17 @@ pub fn toBytes(value: var) [@sizeOf(@typeOf(value))]u8 {
     return asBytes(&value).*;
 }
-test "std.mem.toBytes" {
+test "toBytes" {
     var my_bytes = toBytes(u32(0x12345678));
     switch (builtin.endian) {
-        builtin.Endian.Big => testing.expect(std.mem.eql(u8, my_bytes, "\x12\x34\x56\x78")),
+        builtin.Endian.Big => testing.expect(eql(u8, my_bytes, "\x12\x34\x56\x78")),
-        builtin.Endian.Little => testing.expect(std.mem.eql(u8, my_bytes, "\x78\x56\x34\x12")),
+        builtin.Endian.Little => testing.expect(eql(u8, my_bytes, "\x78\x56\x34\x12")),
     }
     my_bytes[0] = '\x99';
     switch (builtin.endian) {
-        builtin.Endian.Big => testing.expect(std.mem.eql(u8, my_bytes, "\x99\x34\x56\x78")),
+        builtin.Endian.Big => testing.expect(eql(u8, my_bytes, "\x99\x34\x56\x78")),
-        builtin.Endian.Little => testing.expect(std.mem.eql(u8, my_bytes, "\x99\x56\x34\x12")),
+        builtin.Endian.Little => testing.expect(eql(u8, my_bytes, "\x99\x56\x34\x12")),
     }
 }
 @@ -1358,7 +1363,7 @@ pub fn bytesAsValue(comptime T: type, bytes: var) BytesAsValueReturnType(T, @typ
     return @ptrCast(BytesAsValueReturnType(T, @typeOf(bytes)), bytes);
 }
-test "std.mem.bytesAsValue" {
+test "bytesAsValue" {
     const deadbeef = u32(0xDEADBEEF);
     const deadbeef_bytes = switch (builtin.endian) {
         builtin.Endian.Big => "\xDE\xAD\xBE\xEF",
 @@ -1400,7 +1405,7 @@ test "std.mem.bytesAsValue" {
 pub fn bytesToValue(comptime T: type, bytes: var) T {
     return bytesAsValue(T, &bytes).*;
 }
-test "std.mem.bytesToValue" {
+test "bytesToValue" {
     const deadbeef_bytes = switch (builtin.endian) {
         builtin.Endian.Big => "\xDE\xAD\xBE\xEF",
         builtin.Endian.Little => "\xEF\xBE\xAD\xDE",
 @@ -1425,25 +1430,25 @@ pub fn subArrayPtr(ptr: var, comptime start: usize, comptime length: usize) SubA
     return @ptrCast(ReturnType, &ptr[start]);
 }
-test "std.mem.subArrayPtr" {
+test "subArrayPtr" {
     const a1 = "abcdef";
     const sub1 = subArrayPtr(&a1, 2, 3);
-    testing.expect(std.mem.eql(u8, sub1.*, "cde"));
+    testing.expect(eql(u8, sub1.*, "cde"));
     var a2 = "abcdef";
     var sub2 = subArrayPtr(&a2, 2, 3);
-    testing.expect(std.mem.eql(u8, sub2, "cde"));
+    testing.expect(eql(u8, sub2, "cde"));
     sub2[1] = 'X';
-    testing.expect(std.mem.eql(u8, a2, "abcXef"));
+    testing.expect(eql(u8, a2, "abcXef"));
 }
 /// Round an address up to the nearest aligned address
 pub fn alignForward(addr: usize, alignment: usize) usize {
-    return (addr + alignment - 1) & ~(alignment - 1);
+    return alignBackward(addr + (alignment - 1), alignment);
 }
-test "std.mem.alignForward" {
+test "alignForward" {
     testing.expect(alignForward(1, 1) == 1);
     testing.expect(alignForward(2, 1) == 2);
     testing.expect(alignForward(1, 2) == 2);
 @@ -1457,3 +1462,30 @@ test "std.mem.alignForward" {
     testing.expect(alignForward(16, 8) == 16);
     testing.expect(alignForward(17, 8) == 24);
 }
+pub fn alignBackward(addr: usize, alignment: usize) usize {
+    // 000010000 // example addr
+    // 000001111 // subtract 1
+    // 111110000 // binary not
+    return addr & ~(alignment - 1);
+}
+pub fn isAligned(addr: usize, alignment: usize) bool {
+    return alignBackward(addr, alignment) == addr;
+}
+test "isAligned" {
+    testing.expect(isAligned(0, 4));
+    testing.expect(isAligned(1, 1));
+    testing.expect(isAligned(2, 1));
+    testing.expect(isAligned(2, 2));
+    testing.expect(!isAligned(2, 4));
+    testing.expect(isAligned(3, 1));
+    testing.expect(!isAligned(3, 2));
+    testing.expect(!isAligned(3, 4));
+    testing.expect(isAligned(4, 4));
+    testing.expect(isAligned(4, 2));
+    testing.expect(isAligned(4, 1));
+    testing.expect(!isAligned(4, 8));
+    testing.expect(!isAligned(4, 16));
+}

std/mutex.zig+2-2

...	@@ -152,9 +152,9 @@ test "std.Mutex" {	...	@@ -152,9 +152,9 @@ test "std.Mutex" {
152	testing.expect(context.data == TestContext.incr_count);	152	testing.expect(context.data == TestContext.incr_count);
153	} else {	153	} else {
154	const thread_count = 10;	154	const thread_count = 10;
155	var threads: [thread_count]*std.os.Thread = undefined;	155	var threads: [thread_count]*std.Thread = undefined;
156	for (threads) \|*t\| {	156	for (threads) \|*t\| {
157	t.* = try std.os.spawnThread(&context, worker);	157	t.* = try std.Thread.spawn(&context, worker);
158	}	158	}
159	for (threads) \|t\|	159	for (threads) \|t\|
160	t.wait();	160	t.wait();

std/net.zig+12-12

 @@ -2,8 +2,8 @@ const std = @import("std.zig");
 const builtin = @import("builtin");
 const assert = std.debug.assert;
 const net = @This();
-const posix = std.os.posix;
 const mem = std.mem;
+const os = std.os;
 pub const TmpWinAddr = struct {
     family: u8,
 @@ -12,7 +12,7 @@ pub const TmpWinAddr = struct {
 pub const OsAddress = switch (builtin.os) {
     builtin.Os.windows => TmpWinAddr,
-    else => posix.sockaddr,
+    else => os.sockaddr,
 };
 pub const Address = struct {
 @@ -20,9 +20,9 @@ pub const Address = struct {
     pub fn initIp4(ip4: u32, _port: u16) Address {
         return Address{
-            .os_addr = posix.sockaddr{
+            .os_addr = os.sockaddr{
-                .in = posix.sockaddr_in{
+                .in = os.sockaddr_in{
-                    .family = posix.AF_INET,
+                    .family = os.AF_INET,
                     .port = mem.nativeToBig(u16, _port),
                     .addr = ip4,
                     .zero = []u8{0} ** 8,
 @@ -33,10 +33,10 @@ pub const Address = struct {
     pub fn initIp6(ip6: *const Ip6Addr, _port: u16) Address {
         return Address{
-            .family = posix.AF_INET6,
+            .family = os.AF_INET6,
-            .os_addr = posix.sockaddr{
+            .os_addr = os.sockaddr{
-                .in6 = posix.sockaddr_in6{
+                .in6 = os.sockaddr_in6{
-                    .family = posix.AF_INET6,
+                    .family = os.AF_INET6,
                     .port = mem.nativeToBig(u16, _port),
                     .flowinfo = 0,
                     .addr = ip6.addr,
 @@ -50,18 +50,18 @@ pub const Address = struct {
         return mem.bigToNative(u16, self.os_addr.in.port);
     }
-    pub fn initPosix(addr: posix.sockaddr) Address {
+    pub fn initPosix(addr: os.sockaddr) Address {
         return Address{ .os_addr = addr };
     }
     pub fn format(self: *const Address, out_stream: var) !void {
         switch (self.os_addr.in.family) {
-            posix.AF_INET => {
+            os.AF_INET => {
                 const native_endian_port = mem.bigToNative(u16, self.os_addr.in.port);
                 const bytes = ([]const u8)((*self.os_addr.in.addr)[0..1]);
                 try out_stream.print("{}.{}.{}.{}:{}", bytes[0], bytes[1], bytes[2], bytes[3], native_endian_port);
             },
-            posix.AF_INET6 => {
+            os.AF_INET6 => {
                 const native_endian_port = mem.bigToNative(u16, self.os_addr.in6.port);
                 try out_stream.print("[TODO render ip6 address]:{}", native_endian_port);
             },

std/os.zig+1891-2972

...	@@ -1,495 +1,484 @@	...	@@ -1,495 +1,484 @@
		1	// This file contains thin wrappers around OS-specific APIs, with these
		2	// specific goals in mind:
		3	// * Convert "errno"-style error codes into Zig errors.
		4	// * When null-terminated byte buffers are required, provide APIs which accept
		5	// slices as well as APIs which accept null-terminated byte buffers. Same goes
		6	// for UTF-16LE encoding.
		7	// * Where operating systems share APIs, e.g. POSIX, these thin wrappers provide
		8	// cross platform abstracting.
		9	// * When there exists a corresponding libc function and linking libc, the libc
		10	// implementation is used. Exceptions are made for known buggy areas of libc.
		11	// On Linux libc can be side-stepped by using `std.os.linux` directly.
		12	// * For Windows, this file represents the API that libc would provide for
		13	// Windows. For thin wrappers around Windows-specific APIs, see `std.os.windows`.
		14	// Note: The Zig standard library does not support POSIX thread cancellation, and
		15	// in general EINTR is handled by trying again.
		16
1	const std = @import("std.zig");	17	const std = @import("std.zig");
2	const builtin = @import("builtin");	18	const builtin = @import("builtin");
3	const Os = builtin.Os;	19	const assert = std.debug.assert;
4	const is_windows = builtin.os == Os.windows;	20	const math = std.math;
5	const is_posix = switch (builtin.os) {	21	const mem = std.mem;
6	builtin.Os.linux, builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => true,	22	const MAX_PATH_BYTES = std.fs.MAX_PATH_BYTES;
7	else => false,
8	};
9	const os = @This();
10		23
11	comptime {	24	comptime {
12	assert(@import("std") == std); // You have to run the std lib tests with --override-std-dir	25	assert(@import("std") == std); // std lib tests require --override-std-dir
13	}
14
15	test "std.os" {
16	_ = @import("os/child_process.zig");
17	_ = @import("os/darwin.zig");
18	_ = @import("os/darwin/errno.zig");
19	_ = @import("os/get_user_id.zig");
20	_ = @import("os/linux.zig");
21	_ = @import("os/path.zig");
22	_ = @import("os/test.zig");
23	_ = @import("os/time.zig");
24	_ = @import("os/windows.zig");
25	_ = @import("os/uefi.zig");
26	_ = @import("os/wasi.zig");
27	_ = @import("os/get_app_data_dir.zig");
28	}	26	}
29		27
30	pub const windows = @import("os/windows.zig");
31	pub const darwin = @import("os/darwin.zig");	28	pub const darwin = @import("os/darwin.zig");
32	pub const linux = @import("os/linux.zig");
33	pub const freebsd = @import("os/freebsd.zig");	29	pub const freebsd = @import("os/freebsd.zig");
		30	pub const linux = @import("os/linux.zig");
34	pub const netbsd = @import("os/netbsd.zig");	31	pub const netbsd = @import("os/netbsd.zig");
35	pub const zen = @import("os/zen.zig");
36	pub const uefi = @import("os/uefi.zig");	32	pub const uefi = @import("os/uefi.zig");
37	pub const wasi = @import("os/wasi.zig");	33	pub const wasi = @import("os/wasi.zig");
		34	pub const windows = @import("os/windows.zig");
		35	pub const zen = @import("os/zen.zig");
38		36
39	pub const posix = switch (builtin.os) {	37	/// When linking libc, this is the C API. Otherwise, it is the OS-specific system interface.
40	Os.linux => linux,	38	pub const system = if (builtin.link_libc) std.c else switch (builtin.os) {
41	Os.macosx, Os.ios => darwin,	39	.macosx, .ios, .watchos, .tvos => darwin,
42	Os.freebsd => freebsd,	40	.freebsd => freebsd,
43	Os.netbsd => netbsd,	41	.linux => linux,
44	Os.zen => zen,	42	.netbsd => netbsd,
45	Os.wasi => wasi,	43	.wasi => wasi,
46	else => @compileError("Unsupported OS"),	44	.windows => windows,
47	};	45	.zen => zen,
48		46	else => struct {},
49	pub const net = @import("net.zig");
50
51	pub const ChildProcess = @import("os/child_process.zig").ChildProcess;
52	pub const path = @import("os/path.zig");
53	pub const File = @import("os/file.zig").File;
54	pub const time = @import("os/time.zig");
55
56	pub const page_size = switch (builtin.arch) {
57	.wasm32, .wasm64 => 64 * 1024,
58	else => 4 * 1024,
59	};
60
61	pub const MAX_PATH_BYTES = switch (builtin.os) {
62	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => posix.PATH_MAX,
63	// Each UTF-16LE character may be expanded to 3 UTF-8 bytes.
64	// If it would require 4 UTF-8 bytes, then there would be a surrogate
65	// pair in the UTF-16LE, and we (over)account 3 bytes for it that way.
66	// +1 for the null byte at the end, which can be encoded in 1 byte.
67	Os.windows => windows_util.PATH_MAX_WIDE * 3 + 1,
68	else => @compileError("Unsupported OS"),
69	};	47	};
70		48
71	pub const UserInfo = @import("os/get_user_id.zig").UserInfo;	49	pub use @import("os/bits.zig");
72	pub const getUserInfo = @import("os/get_user_id.zig").getUserInfo;
73		50
74	const windows_util = @import("os/windows/util.zig");	51	/// See also `getenv`. Populated by startup code before main().
75	pub const windowsWaitSingle = windows_util.windowsWaitSingle;	52	pub var environ: [][*]u8 = undefined;
76	pub const windowsWrite = windows_util.windowsWrite;
77	pub const windowsIsCygwinPty = windows_util.windowsIsCygwinPty;
78	pub const windowsOpen = windows_util.windowsOpen;
79	pub const windowsOpenW = windows_util.windowsOpenW;
80	pub const createWindowsEnvBlock = windows_util.createWindowsEnvBlock;
81		53
82	pub const WindowsCreateIoCompletionPortError = windows_util.WindowsCreateIoCompletionPortError;	54	/// Populated by startup code before main().
83	pub const windowsCreateIoCompletionPort = windows_util.windowsCreateIoCompletionPort;	55	/// Not available on Windows. See `std.process.args`
		56	/// for obtaining the process arguments.
		57	pub var argv: [][*]u8 = undefined;
84		58
85	pub const WindowsPostQueuedCompletionStatusError = windows_util.WindowsPostQueuedCompletionStatusError;	59	/// To obtain errno, call this function with the return value of the
86	pub const windowsPostQueuedCompletionStatus = windows_util.windowsPostQueuedCompletionStatus;	60	/// system function call. For some systems this will obtain the value directly
87		61	/// from the return code; for others it will use a thread-local errno variable.
88	pub const WindowsWaitResult = windows_util.WindowsWaitResult;	62	/// Therefore, this function only returns a well-defined value when it is called
89	pub const windowsGetQueuedCompletionStatus = windows_util.windowsGetQueuedCompletionStatus;	63	/// directly after the system function call which one wants to learn the errno
90		64	/// value of.
91	pub const WindowsWaitError = windows_util.WaitError;	65	pub const errno = system.getErrno;
92	pub const WindowsOpenError = windows_util.OpenError;
93	pub const WindowsWriteError = windows_util.WriteError;
94	pub const WindowsReadError = windows_util.ReadError;
95
96	pub const FileHandle = if (is_windows) windows.HANDLE else i32;
97
98	pub const getAppDataDir = @import("os/get_app_data_dir.zig").getAppDataDir;
99	pub const GetAppDataDirError = @import("os/get_app_data_dir.zig").GetAppDataDirError;
100
101	const debug = std.debug;
102	const assert = debug.assert;
103	const testing = std.testing;
104
105	const c = std.c;
106
107	const mem = std.mem;
108	const Allocator = mem.Allocator;
109		66
110	const BufMap = std.BufMap;	67	/// Closes the file descriptor.
111	const cstr = std.cstr;	68	/// This function is not capable of returning any indication of failure. An
		69	/// application which wants to ensure writes have succeeded before closing
		70	/// must call `fsync` before `close`.
		71	/// Note: The Zig standard library does not support POSIX thread cancellation.
		72	pub fn close(fd: fd_t) void {
		73	if (windows.is_the_target) {
		74	return windows.CloseHandle(fd);
		75	}
		76	if (wasi.is_the_target) {
		77	_ = wasi.fd_close(fd);
		78	}
		79	if (darwin.is_the_target) {
		80	// This avoids the EINTR problem.
		81	switch (darwin.getErrno(darwin.@"close$NOCANCEL"(fd))) {
		82	EBADF => unreachable, // Always a race condition.
		83	else => return,
		84	}
		85	}
		86	switch (errno(system.close(fd))) {
		87	EBADF => unreachable, // Always a race condition.
		88	EINTR => return, // This is still a success. See https://github.com/ziglang/zig/issues/2425
		89	else => return,
		90	}
		91	}
112		92
113	const io = std.io;	93	pub const GetRandomError = OpenError;
114	const base64 = std.base64;
115	const ArrayList = std.ArrayList;
116	const Buffer = std.Buffer;
117	const math = std.math;
118		94
119	/// Fills `buf` with random bytes. If linking against libc, this calls the	95	/// Obtain a series of random bytes. These bytes can be used to seed user-space
		96	/// random number generators or for cryptographic purposes.
		97	/// When linking against libc, this calls the
120	/// appropriate OS-specific library call. Otherwise it uses the zig standard	98	/// appropriate OS-specific library call. Otherwise it uses the zig standard
121	/// library implementation.	99	/// library implementation.
122	pub fn getRandomBytes(buf: []u8) !void {	100	pub fn getrandom(buf: []u8) GetRandomError!void {
123	switch (builtin.os) {	101	if (windows.is_the_target) {
124	Os.linux => while (true) {	102	return windows.RtlGenRandom(buf);
125	// TODO check libc version and potentially call c.getrandom.	103	}
126	// See #397	104	if (linux.is_the_target) {
127	const errno = posix.getErrno(posix.getrandom(buf.ptr, buf.len, 0));	105	while (true) {
128	switch (errno) {	106	// Bypass libc because it's missing on even relatively new versions.
		107	switch (linux.getErrno(linux.getrandom(buf.ptr, buf.len, 0))) {
129	0 => return,	108	0 => return,
130	posix.EINVAL => unreachable,	109	EINVAL => unreachable,
131	posix.EFAULT => unreachable,	110	EFAULT => unreachable,
132	posix.EINTR => continue,	111	EINTR => continue,
133	posix.ENOSYS => return getRandomBytesDevURandom(buf),	112	ENOSYS => return getRandomBytesDevURandom(buf),
134	else => return unexpectedErrorPosix(errno),	113	else => \|err\| return unexpectedErrno(err),
135	}
136	},
137	Os.macosx, Os.ios, Os.freebsd, Os.netbsd => return getRandomBytesDevURandom(buf),
138	Os.windows => {
139	// Call RtlGenRandom() instead of CryptGetRandom() on Windows
140	// https://github.com/rust-lang-nursery/rand/issues/111
141	// https://bugzilla.mozilla.org/show_bug.cgi?id=504270
142	if (windows.RtlGenRandom(buf.ptr, buf.len) == 0) {
143	const err = windows.GetLastError();
144	return switch (err) {
145	else => unexpectedErrorWindows(err),
146	};
147	}
148	},
149	Os.wasi => {
150	const random_get_result = os.wasi.random_get(buf.ptr, buf.len);
151	if (random_get_result != os.wasi.ESUCCESS) {
152	return error.Unknown;
153	}
154	},
155	Os.zen => {
156	const randomness = []u8{ 42, 1, 7, 12, 22, 17, 99, 16, 26, 87, 41, 45 };
157	var i: usize = 0;
158	while (i < buf.len) : (i += 1) {
159	if (i > randomness.len) return error.Unknown;
160	buf[i] = randomness[i];
161	}	114	}
162	},	115	}
163	else => @compileError("Unsupported OS"),	116	}
		117	if (wasi.is_the_target) {
		118	switch (wasi.random_get(buf.ptr, buf.len)) {
		119	0 => return,
		120	else => \|err\| return unexpectedErrno(err),
		121	}
164	}	122	}
		123	return getRandomBytesDevURandom(buf);
165	}	124	}
166		125
167	fn getRandomBytesDevURandom(buf: []u8) !void {	126	fn getRandomBytesDevURandom(buf: []u8) !void {
168	const fd = try posixOpenC(c"/dev/urandom", posix.O_RDONLY \| posix.O_CLOEXEC, 0);	127	const fd = try openC(c"/dev/urandom", O_RDONLY \| O_CLOEXEC, 0);
169	defer close(fd);	128	defer close(fd);
170		129
171	const stream = &File.openHandle(fd).inStream().stream;	130	const stream = &std.fs.File.openHandle(fd).inStream().stream;
172	stream.readNoEof(buf) catch \|err\| switch (err) {	131	stream.readNoEof(buf) catch return error.Unexpected;
173	error.EndOfStream => unreachable,
174	error.OperationAborted => unreachable,
175	error.BrokenPipe => unreachable,
176	error.Unexpected => return error.Unexpected,
177	error.InputOutput => return error.Unexpected,
178	error.SystemResources => return error.Unexpected,
179	error.IsDir => unreachable,
180	};
181	}
182
183	test "os.getRandomBytes" {
184	var buf_a: [50]u8 = undefined;
185	var buf_b: [50]u8 = undefined;
186	// Call Twice
187	try getRandomBytes(buf_a[0..]);
188	try getRandomBytes(buf_b[0..]);
189
190	// Check if random (not 100% conclusive)
191	testing.expect(!mem.eql(u8, buf_a, buf_b));
192	}	132	}
193		133
194	/// Raises a signal in the current kernel thread, ending its execution.	134	/// Causes abnormal process termination.
195	/// If linking against libc, this calls the abort() libc function. Otherwise	135	/// If linking against libc, this calls the abort() libc function. Otherwise
196	/// it uses the zig standard library implementation.	136	/// it raises SIGABRT followed by SIGKILL and finally lo
197	pub fn abort() noreturn {	137	pub fn abort() noreturn {
198	@setCold(true);	138	@setCold(true);
199	if (builtin.link_libc) {	139	if (builtin.link_libc) {
200	c.abort();	140	system.abort();
201	}	141	}
202	switch (builtin.os) {	142	if (windows.is_the_target) {
203	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {	143	if (builtin.mode == .Debug) {
204	_ = posix.raise(posix.SIGABRT);	144	@breakpoint();
205	_ = posix.raise(posix.SIGKILL);	145	}
206	while (true) {}	146	windows.kernel32.ExitProcess(3);
207	},
208	Os.windows => {
209	if (builtin.mode == builtin.Mode.Debug) {
210	@breakpoint();
211	}
212	windows.ExitProcess(3);
213	},
214	Os.wasi => {
215	_ = wasi.proc_raise(wasi.SIGABRT);
216	// TODO: Is SIGKILL even necessary?
217	_ = wasi.proc_raise(wasi.SIGKILL);
218	while (true) {}
219	},
220	Os.uefi => {
221	// TODO there's gotta be a better thing to do here than loop forever
222	while (true) {}
223	},
224	else => @compileError("Unsupported OS"),
225	}	147	}
		148	if (builtin.os == .uefi) {
		149	// TODO there must be a better thing to do here than loop forever
		150	while (true) {}
		151	}
		152
		153	raise(SIGABRT) catch {};
		154
		155	// TODO the rest of the implementation of abort() from musl libc here
		156
		157	raise(SIGKILL) catch {};
		158	exit(127);
226	}	159	}
227		160
228	/// Exits the program cleanly with the specified status code.	161	pub const RaiseError = error{Unexpected};
229	pub fn exit(status: u8) noreturn {	162
230	@setCold(true);	163	pub fn raise(sig: u8) RaiseError!void {
231	if (builtin.link_libc) {	164	if (builtin.link_libc) {
232	c.exit(status);	165	switch (errno(system.raise(sig))) {
233	}	166	0 => return,
234	switch (builtin.os) {	167	else => \|err\| return unexpectedErrno(err),
235	Os.linux => {	168	}
236	if (builtin.single_threaded) {
237	linux.exit(status);
238	} else {
239	linux.exit_group(status);
240	}
241	},
242	Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {
243	posix.exit(status);
244	},
245	Os.windows => {
246	windows.ExitProcess(status);
247	},
248	Os.wasi => {
249	wasi.proc_exit(status);
250	},
251	else => @compileError("Unsupported OS"),
252	}	169	}
253	}
254		170
255	/// When a file descriptor is closed on linux, it pops the first	171	if (wasi.is_the_target) {
256	/// node from this queue and resumes it.	172	switch (wasi.proc_raise(SIGABRT)) {
257	/// Async functions which get the EMFILE error code can suspend,	173	0 => return,
258	/// putting their coroutine handle into this list.	174	else => \|err\| return unexpectedErrno(err),
259	/// TODO make this an atomic linked list	175	}
260	pub var emfile_promise_queue = std.LinkedList(promise).init();	176	}
261		177
262	/// Closes the file handle. Keeps trying if it gets interrupted by a signal.	178	if (linux.is_the_target) {
263	pub fn close(handle: FileHandle) void {	179	var set: linux.sigset_t = undefined;
264	if (is_windows) {	180	linux.blockAppSignals(&set);
265	windows_util.windowsClose(handle);	181	const tid = linux.syscall0(linux.SYS_gettid);
266	} else {	182	const rc = linux.syscall2(linux.SYS_tkill, tid, sig);
267	while (true) {	183	linux.restoreSignals(&set);
268	const err = posix.getErrno(posix.close(handle));	184	switch (errno(rc)) {
269	switch (err) {	185	0 => return,
270	posix.EINTR => continue,	186	else => \|err\| return unexpectedErrno(err),
271	else => {
272	if (emfile_promise_queue.popFirst()) \|p\| resume p.data;
273	return;
274	},
275	}
276	}	187	}
277	}	188	}
		189
		190	@compileError("std.os.raise unimplemented for this target");
		191	}
		192
		193	pub const KillError = error{
		194	PermissionDenied,
		195	Unexpected,
		196	};
		197
		198	pub fn kill(pid: pid_t, sig: u8) KillError!void {
		199	switch (errno(system.kill(pid, sig))) {
		200	0 => return,
		201	EINVAL => unreachable, // invalid signal
		202	EPERM => return error.PermissionDenied,
		203	ESRCH => unreachable, // always a race condition
		204	else => \|err\| return unexpectedErrno(err),
		205	}
278	}	206	}
279		207
280	pub const PosixReadError = error{	208	/// Exits the program cleanly with the specified status code.
		209	pub fn exit(status: u8) noreturn {
		210	if (builtin.link_libc) {
		211	system.exit(status);
		212	}
		213	if (windows.is_the_target) {
		214	windows.kernel32.ExitProcess(status);
		215	}
		216	if (wasi.is_the_target) {
		217	wasi.proc_exit(status);
		218	}
		219	if (linux.is_the_target and !builtin.single_threaded) {
		220	linux.exit_group(status);
		221	}
		222	system.exit(status);
		223	}
		224
		225	pub const ReadError = error{
281	InputOutput,	226	InputOutput,
282	SystemResources,	227	SystemResources,
283	IsDir,	228	IsDir,
		229	OperationAborted,
		230	BrokenPipe,
284	Unexpected,	231	Unexpected,
285	};	232	};
286		233
287	/// Returns the number of bytes that were read, which can be less than	234	/// Returns the number of bytes that were read, which can be less than
288	/// buf.len. If 0 bytes were read, that means EOF.	235	/// buf.len. If 0 bytes were read, that means EOF.
289	pub fn posixRead(fd: i32, buf: []u8) PosixReadError!usize {	236	/// This function is for blocking file descriptors only. For non-blocking, see
		237	/// `readAsync`.
		238	pub fn read(fd: fd_t, buf: []u8) ReadError!usize {
		239	if (windows.is_the_target) {
		240	return windows.ReadFile(fd, buf);
		241	}
		242
		243	if (wasi.is_the_target and !builtin.link_libc) {
		244	const iovs = [1]iovec{iovec{
		245	.iov_base = buf.ptr,
		246	.iov_len = buf.len,
		247	}};
		248
		249	var nread: usize = undefined;
		250	switch (wasi.fd_read(fd, &iovs, iovs.len, &nread)) {
		251	0 => return nread,
		252	else => \|err\| return unexpectedErrno(err),
		253	}
		254	}
		255
290	// Linux can return EINVAL when read amount is > 0x7ffff000	256	// Linux can return EINVAL when read amount is > 0x7ffff000
291	// See https://github.com/ziglang/zig/pull/743#issuecomment-363158274	257	// See https://github.com/ziglang/zig/pull/743#issuecomment-363158274
		258	// TODO audit this. Shawn Landden says that this is not actually true.
		259	// if this logic should stay, move it to std.os.linux
292	const max_buf_len = 0x7ffff000;	260	const max_buf_len = 0x7ffff000;
293		261
294	var index: usize = 0;	262	var index: usize = 0;
295	while (index < buf.len) {	263	while (index < buf.len) {
296	const want_to_read = math.min(buf.len - index, usize(max_buf_len));	264	const want_to_read = math.min(buf.len - index, usize(max_buf_len));
297	const rc = posix.read(fd, buf.ptr + index, want_to_read);	265	const rc = system.read(fd, buf.ptr + index, want_to_read);
298	const err = posix.getErrno(rc);	266	switch (errno(rc)) {
299	switch (err) {
300	0 => {	267	0 => {
301	index += rc;	268	const amt_read = @intCast(usize, rc);
302	if (rc == want_to_read) continue;	269	index += amt_read;
		270	if (amt_read == want_to_read) continue;
303	// Read returned less than buf.len.	271	// Read returned less than buf.len.
304	return index;	272	return index;
305	},	273	},
306	posix.EINTR => continue,	274	EINTR => continue,
307	posix.EINVAL => unreachable,	275	EINVAL => unreachable,
308	posix.EFAULT => unreachable,	276	EFAULT => unreachable,
309	posix.EAGAIN => unreachable,	277	EAGAIN => unreachable, // This function is for blocking reads.
310	posix.EBADF => unreachable, // always a race condition	278	EBADF => unreachable, // Always a race condition.
311	posix.EIO => return error.InputOutput,	279	EIO => return error.InputOutput,
312	posix.EISDIR => return error.IsDir,	280	EISDIR => return error.IsDir,
313	posix.ENOBUFS => return error.SystemResources,	281	ENOBUFS => return error.SystemResources,
314	posix.ENOMEM => return error.SystemResources,	282	ENOMEM => return error.SystemResources,
315	else => return unexpectedErrorPosix(err),	283	else => \|err\| return unexpectedErrno(err),
316	}	284	}
317	}	285	}
318	return index;	286	return index;
319	}	287	}
320		288
321	/// Number of bytes read is returned. Upon reading end-of-file, zero is returned.	289	/// Number of bytes read is returned. Upon reading end-of-file, zero is returned.
322	pub fn posix_preadv(fd: i32, iov: [*]const posix.iovec, count: usize, offset: u64) PosixReadError!usize {	290	/// This function is for blocking file descriptors only. For non-blocking, see
323	switch (builtin.os) {	291	/// `preadvAsync`.
324	builtin.Os.macosx => {	292	pub fn preadv(fd: fd_t, iov: []const iovec, offset: u64) ReadError!usize {
325	// Darwin does not have preadv but it does have pread.	293	if (darwin.is_the_target) {
326	var off: usize = 0;	294	// Darwin does not have preadv but it does have pread.
327	var iov_i: usize = 0;	295	var off: usize = 0;
328	var inner_off: usize = 0;	296	var iov_i: usize = 0;
329	while (true) {	297	var inner_off: usize = 0;
330	const v = iov[iov_i];	298	while (true) {
331	const rc = darwin.pread(fd, v.iov_base + inner_off, v.iov_len - inner_off, offset + off);	299	const v = iov[iov_i];
332	const err = darwin.getErrno(rc);	300	const rc = darwin.pread(fd, v.iov_base + inner_off, v.iov_len - inner_off, offset + off);
333	switch (err) {	301	const err = darwin.getErrno(rc);
334	0 => {
335	off += rc;
336	inner_off += rc;
337	if (inner_off == v.iov_len) {
338	iov_i += 1;
339	inner_off = 0;
340	if (iov_i == count) {
341	return off;
342	}
343	}
344	if (rc == 0) return off; // EOF
345	continue;
346	},
347	posix.EINTR => continue,
348	posix.EINVAL => unreachable,
349	posix.EFAULT => unreachable,
350	posix.ESPIPE => unreachable, // fd is not seekable
351	posix.EAGAIN => unreachable, // this function is not for non blocking
352	posix.EBADF => unreachable, // always a race condition
353	posix.EIO => return error.InputOutput,
354	posix.EISDIR => return error.IsDir,
355	posix.ENOBUFS => return error.SystemResources,
356	posix.ENOMEM => return error.SystemResources,
357	else => return unexpectedErrorPosix(err),
358	}
359	}
360	},
361	builtin.Os.linux, builtin.Os.freebsd, Os.netbsd => while (true) {
362	const rc = posix.preadv(fd, iov, count, offset);
363	const err = posix.getErrno(rc);
364	switch (err) {	302	switch (err) {
365	0 => return rc,	303	0 => {
366	posix.EINTR => continue,	304	const amt_read = @bitCast(usize, rc);
367	posix.EINVAL => unreachable,	305	off += amt_read;
368	posix.EFAULT => unreachable,	306	inner_off += amt_read;
369	posix.EAGAIN => unreachable, // don't call this function for non blocking	307	if (inner_off == v.iov_len) {
370	posix.EBADF => unreachable, // always a race condition	308	iov_i += 1;
371	posix.EIO => return error.InputOutput,	309	inner_off = 0;
372	posix.EISDIR => return error.IsDir,	310	if (iov_i == iov.len) {
373	posix.ENOBUFS => return error.SystemResources,	311	return off;
374	posix.ENOMEM => return error.SystemResources,	312	}
375	else => return unexpectedErrorPosix(err),	313	}
		314	if (rc == 0) return off; // EOF
		315	continue;
		316	},
		317	EINTR => continue,
		318	EINVAL => unreachable,
		319	EFAULT => unreachable,
		320	ESPIPE => unreachable, // fd is not seekable
		321	EAGAIN => unreachable, // This function is for blocking reads.
		322	EBADF => unreachable, // always a race condition
		323	EIO => return error.InputOutput,
		324	EISDIR => return error.IsDir,
		325	ENOBUFS => return error.SystemResources,
		326	ENOMEM => return error.SystemResources,
		327	else => return unexpectedErrno(err),
376	}	328	}
377	},	329	}
378	else => @compileError("Unsupported OS"),	330	}
		331	while (true) {
		332	// TODO handle the case when iov_len is too large and get rid of this @intCast
		333	const rc = system.preadv(fd, iov.ptr, @intCast(u32, iov.len), offset);
		334	switch (errno(rc)) {
		335	0 => return @bitCast(usize, rc),
		336	EINTR => continue,
		337	EINVAL => unreachable,
		338	EFAULT => unreachable,
		339	EAGAIN => unreachable, // This function is for blocking reads.
		340	EBADF => unreachable, // always a race condition
		341	EIO => return error.InputOutput,
		342	EISDIR => return error.IsDir,
		343	ENOBUFS => return error.SystemResources,
		344	ENOMEM => return error.SystemResources,
		345	else => \|err\| return unexpectedErrno(err),
		346	}
379	}	347	}
380	}	348	}
381		349
382	pub const PosixWriteError = error{	350	pub const WriteError = error{
383	DiskQuota,	351	DiskQuota,
384	FileTooBig,	352	FileTooBig,
385	InputOutput,	353	InputOutput,
386	NoSpaceLeft,	354	NoSpaceLeft,
387	AccessDenied,	355	AccessDenied,
388	BrokenPipe,	356	BrokenPipe,
389		357	SystemResources,
390	/// See https://github.com/ziglang/zig/issues/1396	358	OperationAborted,
391	Unexpected,	359	Unexpected,
392	};	360	};
393		361
394	/// Calls POSIX write, and keeps trying if it gets interrupted.	362	/// Write to a file descriptor. Keeps trying if it gets interrupted.
395	pub fn posixWrite(fd: i32, bytes: []const u8) PosixWriteError!void {	363	/// This function is for blocking file descriptors only. For non-blocking, see
		364	/// `writeAsync`.
		365	pub fn write(fd: fd_t, bytes: []const u8) WriteError!void {
		366	if (windows.is_the_target) {
		367	return windows.WriteFile(fd, bytes);
		368	}
		369
		370	if (wasi.is_the_target and !builtin.link_libc) {
		371	const ciovs = [1]iovec_const{iovec_const{
		372	.iov_base = bytes.ptr,
		373	.iov_len = bytes.len,
		374	}};
		375	var nwritten: usize = undefined;
		376	switch (wasi.fd_write(fd, &ciovs, ciovs.len, &nwritten)) {
		377	0 => return,
		378	else => \|err\| return unexpectedErrno(err),
		379	}
		380	}
		381
396	// Linux can return EINVAL when write amount is > 0x7ffff000	382	// Linux can return EINVAL when write amount is > 0x7ffff000
397	// See https://github.com/ziglang/zig/pull/743#issuecomment-363165856	383	// See https://github.com/ziglang/zig/pull/743#issuecomment-363165856
		384	// TODO audit this. Shawn Landden says that this is not actually true.
		385	// if this logic should stay, move it to std.os.linux
398	const max_bytes_len = 0x7ffff000;	386	const max_bytes_len = 0x7ffff000;
399		387
400	var index: usize = 0;	388	var index: usize = 0;
401	while (index < bytes.len) {	389	while (index < bytes.len) {
402	const amt_to_write = math.min(bytes.len - index, usize(max_bytes_len));	390	const amt_to_write = math.min(bytes.len - index, usize(max_bytes_len));
403	const rc = posix.write(fd, bytes.ptr + index, amt_to_write);	391	const rc = system.write(fd, bytes.ptr + index, amt_to_write);
404	const write_err = posix.getErrno(rc);	392	switch (errno(rc)) {
405	switch (write_err) {
406	0 => {	393	0 => {
407	index += rc;	394	index += @intCast(usize, rc);
408	continue;	395	continue;
409	},	396	},
410	posix.EINTR => continue,	397	EINTR => continue,
411	posix.EINVAL => unreachable,	398	EINVAL => unreachable,
412	posix.EFAULT => unreachable,	399	EFAULT => unreachable,
413	posix.EAGAIN => unreachable, // use posixAsyncWrite for non-blocking	400	EAGAIN => unreachable, // This function is for blocking writes.
414	posix.EBADF => unreachable, // always a race condition	401	EBADF => unreachable, // Always a race condition.
415	posix.EDESTADDRREQ => unreachable, // connect was never called	402	EDESTADDRREQ => unreachable, // `connect` was never called.
416	posix.EDQUOT => return PosixWriteError.DiskQuota,	403	EDQUOT => return error.DiskQuota,
417	posix.EFBIG => return PosixWriteError.FileTooBig,	404	EFBIG => return error.FileTooBig,
418	posix.EIO => return PosixWriteError.InputOutput,	405	EIO => return error.InputOutput,
419	posix.ENOSPC => return PosixWriteError.NoSpaceLeft,	406	ENOSPC => return error.NoSpaceLeft,
420	posix.EPERM => return PosixWriteError.AccessDenied,	407	EPERM => return error.AccessDenied,
421	posix.EPIPE => return PosixWriteError.BrokenPipe,	408	EPIPE => return error.BrokenPipe,
422	else => return unexpectedErrorPosix(write_err),	409	else => \|err\| return unexpectedErrno(err),
		410	}
		411	}
		412	}
		413
		414	/// Write multiple buffers to a file descriptor. Keeps trying if it gets interrupted.
		415	/// This function is for blocking file descriptors only. For non-blocking, see
		416	/// `pwritevAsync`.
		417	pub fn pwritev(fd: fd_t, iov: []const iovec_const, offset: u64) WriteError!void {
		418	if (darwin.is_the_target) {
		419	// Darwin does not have pwritev but it does have pwrite.
		420	var off: usize = 0;
		421	var iov_i: usize = 0;
		422	var inner_off: usize = 0;
		423	while (true) {
		424	const v = iov[iov_i];
		425	const rc = darwin.pwrite(fd, v.iov_base + inner_off, v.iov_len - inner_off, offset + off);
		426	const err = darwin.getErrno(rc);
		427	switch (err) {
		428	0 => {
		429	const amt_written = @bitCast(usize, rc);
		430	off += amt_written;
		431	inner_off += amt_written;
		432	if (inner_off == v.iov_len) {
		433	iov_i += 1;
		434	inner_off = 0;
		435	if (iov_i == iov.len) {
		436	return;
		437	}
		438	}
		439	continue;
		440	},
		441	EINTR => continue,
		442	ESPIPE => unreachable, // `fd` is not seekable.
		443	EINVAL => unreachable,
		444	EFAULT => unreachable,
		445	EAGAIN => unreachable, // This function is for blocking writes.
		446	EBADF => unreachable, // Always a race condition.
		447	EDESTADDRREQ => unreachable, // `connect` was never called.
		448	EDQUOT => return error.DiskQuota,
		449	EFBIG => return error.FileTooBig,
		450	EIO => return error.InputOutput,
		451	ENOSPC => return error.NoSpaceLeft,
		452	EPERM => return error.AccessDenied,
		453	EPIPE => return error.BrokenPipe,
		454	else => return unexpectedErrno(err),
		455	}
423	}	456	}
424	}	457	}
425	}
426		458
427	pub fn posix_pwritev(fd: i32, iov: [*]const posix.iovec_const, count: usize, offset: u64) PosixWriteError!void {	459	while (true) {
428	switch (builtin.os) {	460	// TODO handle the case when iov_len is too large and get rid of this @intCast
429	builtin.Os.macosx => {	461	const rc = system.pwritev(fd, iov.ptr, @intCast(u32, iov.len), offset);
430	// Darwin does not have pwritev but it does have pwrite.	462	switch (errno(rc)) {
431	var off: usize = 0;	463	0 => return,
432	var iov_i: usize = 0;	464	EINTR => continue,
433	var inner_off: usize = 0;	465	EINVAL => unreachable,
434	while (true) {	466	EFAULT => unreachable,
435	const v = iov[iov_i];	467	EAGAIN => unreachable, // This function is for blocking writes.
436	const rc = darwin.pwrite(fd, v.iov_base + inner_off, v.iov_len - inner_off, offset + off);	468	EBADF => unreachable, // Always a race condition.
437	const err = darwin.getErrno(rc);	469	EDESTADDRREQ => unreachable, // `connect` was never called.
438	switch (err) {	470	EDQUOT => return error.DiskQuota,
439	0 => {	471	EFBIG => return error.FileTooBig,
440	off += rc;	472	EIO => return error.InputOutput,
441	inner_off += rc;	473	ENOSPC => return error.NoSpaceLeft,
442	if (inner_off == v.iov_len) {	474	EPERM => return error.AccessDenied,
443	iov_i += 1;	475	EPIPE => return error.BrokenPipe,
444	inner_off = 0;	476	else => \|err\| return unexpectedErrno(err),
445	if (iov_i == count) {	477	}
446	return;
447	}
448	}
449	continue;
450	},
451	posix.EINTR => continue,
452	posix.ESPIPE => unreachable, // fd is not seekable
453	posix.EINVAL => unreachable,
454	posix.EFAULT => unreachable,
455	posix.EAGAIN => unreachable, // use posixAsyncPWriteV for non-blocking
456	posix.EBADF => unreachable, // always a race condition
457	posix.EDESTADDRREQ => unreachable, // connect was never called
458	posix.EDQUOT => return PosixWriteError.DiskQuota,
459	posix.EFBIG => return PosixWriteError.FileTooBig,
460	posix.EIO => return PosixWriteError.InputOutput,
461	posix.ENOSPC => return PosixWriteError.NoSpaceLeft,
462	posix.EPERM => return PosixWriteError.AccessDenied,
463	posix.EPIPE => return PosixWriteError.BrokenPipe,
464	else => return unexpectedErrorPosix(err),
465	}
466	}
467	},
468	builtin.Os.linux, builtin.Os.freebsd, builtin.Os.netbsd => while (true) {
469	const rc = posix.pwritev(fd, iov, count, offset);
470	const err = posix.getErrno(rc);
471	switch (err) {
472	0 => return,
473	posix.EINTR => continue,
474	posix.EINVAL => unreachable,
475	posix.EFAULT => unreachable,
476	posix.EAGAIN => unreachable, // use posixAsyncPWriteV for non-blocking
477	posix.EBADF => unreachable, // always a race condition
478	posix.EDESTADDRREQ => unreachable, // connect was never called
479	posix.EDQUOT => return PosixWriteError.DiskQuota,
480	posix.EFBIG => return PosixWriteError.FileTooBig,
481	posix.EIO => return PosixWriteError.InputOutput,
482	posix.ENOSPC => return PosixWriteError.NoSpaceLeft,
483	posix.EPERM => return PosixWriteError.AccessDenied,
484	posix.EPIPE => return PosixWriteError.BrokenPipe,
485	else => return unexpectedErrorPosix(err),
486	}
487	},
488	else => @compileError("Unsupported OS"),
489	}	478	}
490	}	479	}
491		480
492	pub const PosixOpenError = error{	481	pub const OpenError = error{
493	AccessDenied,	482	AccessDenied,
494	FileTooBig,	483	FileTooBig,
495	IsDir,	484	IsDir,
...	@@ -504,106 +493,60 @@ pub const PosixOpenError = error{	...	@@ -504,106 +493,60 @@ pub const PosixOpenError = error{
504	NotDir,	493	NotDir,
505	PathAlreadyExists,	494	PathAlreadyExists,
506	DeviceBusy,	495	DeviceBusy,
507
508	/// See https://github.com/ziglang/zig/issues/1396
509	Unexpected,	496	Unexpected,
510	};	497	};
511		498
512	/// ::file_path needs to be copied in memory to add a null terminating byte.	499	/// Open and possibly create a file. Keeps trying if it gets interrupted.
513	/// Calls POSIX open, keeps trying if it gets interrupted, and translates	500	/// `file_path` needs to be copied in memory to add a null terminating byte.
514	/// the return value into zig errors.	501	/// See also `openC`.
515	pub fn posixOpen(file_path: []const u8, flags: u32, perm: usize) PosixOpenError!i32 {	502	pub fn open(file_path: []const u8, flags: u32, perm: usize) OpenError!fd_t {
516	const file_path_c = try toPosixPath(file_path);	503	const file_path_c = try toPosixPath(file_path);
517	return posixOpenC(&file_path_c, flags, perm);	504	return openC(&file_path_c, flags, perm);
518	}	505	}
519		506
520	// TODO https://github.com/ziglang/zig/issues/265	507	/// Open and possibly create a file. Keeps trying if it gets interrupted.
521	pub fn posixOpenC(file_path: [*]const u8, flags: u32, perm: usize) !i32 {	508	/// See also `open`.
		509	/// TODO https://github.com/ziglang/zig/issues/265
		510	pub fn openC(file_path: [*]const u8, flags: u32, perm: usize) OpenError!fd_t {
522	while (true) {	511	while (true) {
523	const result = posix.open(file_path, flags, perm);	512	const rc = system.open(file_path, flags, perm);
524	const err = posix.getErrno(result);	513	switch (errno(rc)) {
525	if (err > 0) {	514	0 => return @intCast(fd_t, rc),
526	switch (err) {	515	EINTR => continue,
527	posix.EINTR => continue,	516
528		517	EFAULT => unreachable,
529	posix.EFAULT => unreachable,	518	EINVAL => unreachable,
530	posix.EINVAL => unreachable,	519	EACCES => return error.AccessDenied,
531	posix.EACCES => return PosixOpenError.AccessDenied,	520	EFBIG => return error.FileTooBig,
532	posix.EFBIG, posix.EOVERFLOW => return PosixOpenError.FileTooBig,	521	EOVERFLOW => return error.FileTooBig,
533	posix.EISDIR => return PosixOpenError.IsDir,	522	EISDIR => return error.IsDir,
534	posix.ELOOP => return PosixOpenError.SymLinkLoop,	523	ELOOP => return error.SymLinkLoop,
535	posix.EMFILE => return PosixOpenError.ProcessFdQuotaExceeded,	524	EMFILE => return error.ProcessFdQuotaExceeded,
536	posix.ENAMETOOLONG => return PosixOpenError.NameTooLong,	525	ENAMETOOLONG => return error.NameTooLong,
537	posix.ENFILE => return PosixOpenError.SystemFdQuotaExceeded,	526	ENFILE => return error.SystemFdQuotaExceeded,
538	posix.ENODEV => return PosixOpenError.NoDevice,	527	ENODEV => return error.NoDevice,
539	posix.ENOENT => return PosixOpenError.FileNotFound,	528	ENOENT => return error.FileNotFound,
540	posix.ENOMEM => return PosixOpenError.SystemResources,	529	ENOMEM => return error.SystemResources,
541	posix.ENOSPC => return PosixOpenError.NoSpaceLeft,	530	ENOSPC => return error.NoSpaceLeft,
542	posix.ENOTDIR => return PosixOpenError.NotDir,	531	ENOTDIR => return error.NotDir,
543	posix.EPERM => return PosixOpenError.AccessDenied,	532	EPERM => return error.AccessDenied,
544	posix.EEXIST => return PosixOpenError.PathAlreadyExists,	533	EEXIST => return error.PathAlreadyExists,
545	posix.EBUSY => return PosixOpenError.DeviceBusy,	534	EBUSY => return error.DeviceBusy,
546	else => return unexpectedErrorPosix(err),	535	else => \|err\| return unexpectedErrno(err),
547	}	536	}
548	}	537	}
549	return @intCast(i32, result);	538	}
550	}	539
551	}	540	pub fn dup2(old_fd: fd_t, new_fd: fd_t) !void {
552
553	/// Used to convert a slice to a null terminated slice on the stack.
554	/// TODO well defined copy elision
555	pub fn toPosixPath(file_path: []const u8) ![posix.PATH_MAX]u8 {
556	var path_with_null: [posix.PATH_MAX]u8 = undefined;
557	if (file_path.len >= posix.PATH_MAX) return error.NameTooLong;
558	mem.copy(u8, path_with_null[0..], file_path);
559	path_with_null[file_path.len] = 0;
560	return path_with_null;
561	}
562
563	pub fn posixDup2(old_fd: i32, new_fd: i32) !void {
564	while (true) {	541	while (true) {
565	const err = posix.getErrno(posix.dup2(old_fd, new_fd));	542	switch (errno(system.dup2(old_fd, new_fd))) {
566	if (err > 0) {	543	0 => return,
567	return switch (err) {	544	EBUSY, EINTR => continue,
568	posix.EBUSY, posix.EINTR => continue,	545	EMFILE => return error.ProcessFdQuotaExceeded,
569	posix.EMFILE => error.ProcessFdQuotaExceeded,	546	EINVAL => unreachable,
570	posix.EINVAL => unreachable,	547	else => \|err\| return unexpectedErrno(err),
571	else => unexpectedErrorPosix(err),
572	};
573	}
574	return;
575	}
576	}
577
578	pub fn createNullDelimitedEnvMap(allocator: Allocator, env_map: const BufMap) ![]?[*]u8 {
579	const envp_count = env_map.count();
580	const envp_buf = try allocator.alloc(?[*]u8, envp_count + 1);
581	mem.set(?[*]u8, envp_buf, null);
582	errdefer freeNullDelimitedEnvMap(allocator, envp_buf);
583	{
584	var it = env_map.iterator();
585	var i: usize = 0;
586	while (it.next()) \|pair\| : (i += 1) {
587	const env_buf = try allocator.alloc(u8, pair.key.len + pair.value.len + 2);
588	@memcpy(env_buf.ptr, pair.key.ptr, pair.key.len);
589	env_buf[pair.key.len] = '=';
590	@memcpy(env_buf.ptr + pair.key.len + 1, pair.value.ptr, pair.value.len);
591	env_buf[env_buf.len - 1] = 0;
592
593	envp_buf[i] = env_buf.ptr;
594	}	548	}
595	assert(i == envp_count);
596	}
597	assert(envp_buf[envp_count] == null);
598	return envp_buf;
599	}
600
601	pub fn freeNullDelimitedEnvMap(allocator: Allocator, envp_buf: []?[]u8) void {
602	for (envp_buf) \|env\| {
603	const env_buf = if (env) \|ptr\| ptr[0 .. cstr.len(ptr) + 1] else break;
604	allocator.free(env_buf);
605	}	549	}
606	allocator.free(envp_buf);
607	}	550	}
608		551
609	/// This function must allocate memory to add a null terminating bytes on path and each arg.	552	/// This function must allocate memory to add a null terminating bytes on path and each arg.
...	@@ -611,34 +554,35 @@ pub fn freeNullDelimitedEnvMap(allocator: Allocator, envp_buf: []?[]u8) void {	...	@@ -611,34 +554,35 @@ pub fn freeNullDelimitedEnvMap(allocator: Allocator, envp_buf: []?[]u8) void {
611	/// pointers after the args and after the environment variables.	554	/// pointers after the args and after the environment variables.
612	/// `argv[0]` is the executable path.	555	/// `argv[0]` is the executable path.
613	/// This function also uses the PATH environment variable to get the full path to the executable.	556	/// This function also uses the PATH environment variable to get the full path to the executable.
614	pub fn posixExecve(argv: []const []const u8, env_map: const BufMap, allocator: Allocator) !void {	557	/// TODO provide execveC which does not take an allocator
615	const argv_buf = try allocator.alloc(?[*]u8, argv.len + 1);	558	pub fn execve(allocator: mem.Allocator, argv_slice: []const []const u8, env_map: const std.BufMap) !void {
		559	const argv_buf = try allocator.alloc(?[*]u8, argv_slice.len + 1);
616	mem.set(?[*]u8, argv_buf, null);	560	mem.set(?[*]u8, argv_buf, null);
617	defer {	561	defer {
618	for (argv_buf) \|arg\| {	562	for (argv_buf) \|arg\| {
619	const arg_buf = if (arg) \|ptr\| cstr.toSlice(ptr) else break;	563	const arg_buf = if (arg) \|ptr\| mem.toSlice(u8, ptr) else break;
620	allocator.free(arg_buf);	564	allocator.free(arg_buf);
621	}	565	}
622	allocator.free(argv_buf);	566	allocator.free(argv_buf);
623	}	567	}
624	for (argv) \|arg, i\| {	568	for (argv_slice) \|arg, i\| {
625	const arg_buf = try allocator.alloc(u8, arg.len + 1);	569	const arg_buf = try allocator.alloc(u8, arg.len + 1);
626	@memcpy(arg_buf.ptr, arg.ptr, arg.len);	570	@memcpy(arg_buf.ptr, arg.ptr, arg.len);
627	arg_buf[arg.len] = 0;	571	arg_buf[arg.len] = 0;
628		572
629	argv_buf[i] = arg_buf.ptr;	573	argv_buf[i] = arg_buf.ptr;
630	}	574	}
631	argv_buf[argv.len] = null;	575	argv_buf[argv_slice.len] = null;
632		576
633	const envp_buf = try createNullDelimitedEnvMap(allocator, env_map);	577	const envp_buf = try createNullDelimitedEnvMap(allocator, env_map);
634	defer freeNullDelimitedEnvMap(allocator, envp_buf);	578	defer freeNullDelimitedEnvMap(allocator, envp_buf);
635		579
636	const exe_path = argv[0];	580	const exe_path = argv_slice[0];
637	if (mem.indexOfScalar(u8, exe_path, '/') != null) {	581	if (mem.indexOfScalar(u8, exe_path, '/') != null) {
638	return posixExecveErrnoToErr(posix.getErrno(posix.execve(argv_buf[0].?, argv_buf.ptr, envp_buf.ptr)));	582	return execveErrnoToErr(errno(system.execve(argv_buf[0].?, argv_buf.ptr, envp_buf.ptr)));
639	}	583	}
640		584
641	const PATH = getEnvPosix("PATH") orelse "/usr/local/bin:/bin/:/usr/bin";	585	const PATH = getenv("PATH") orelse "/usr/local/bin:/bin/:/usr/bin";
642	// PATH.len because it is >= the largest search_path	586	// PATH.len because it is >= the largest search_path
643	// +1 for the / to join the search path and exe_path	587	// +1 for the / to join the search path and exe_path
644	// +1 for the null terminating byte	588	// +1 for the null terminating byte
...	@@ -652,21 +596,52 @@ pub fn posixExecve(argv: []const []const u8, env_map: *const BufMap, allocator:	...	@@ -652,21 +596,52 @@ pub fn posixExecve(argv: []const []const u8, env_map: *const BufMap, allocator:
652	path_buf[search_path.len] = '/';	596	path_buf[search_path.len] = '/';
653	mem.copy(u8, path_buf[search_path.len + 1 ..], exe_path);	597	mem.copy(u8, path_buf[search_path.len + 1 ..], exe_path);
654	path_buf[search_path.len + exe_path.len + 1] = 0;	598	path_buf[search_path.len + exe_path.len + 1] = 0;
655	err = posix.getErrno(posix.execve(path_buf.ptr, argv_buf.ptr, envp_buf.ptr));	599	err = errno(system.execve(path_buf.ptr, argv_buf.ptr, envp_buf.ptr));
656	assert(err > 0);	600	assert(err > 0);
657	if (err == posix.EACCES) {	601	if (err == EACCES) {
658	seen_eacces = true;	602	seen_eacces = true;
659	} else if (err != posix.ENOENT) {	603	} else if (err != ENOENT) {
660	return posixExecveErrnoToErr(err);	604	return execveErrnoToErr(err);
661	}	605	}
662	}	606	}
663	if (seen_eacces) {	607	if (seen_eacces) {
664	err = posix.EACCES;	608	err = EACCES;
		609	}
		610	return execveErrnoToErr(err);
		611	}
		612
		613	pub fn createNullDelimitedEnvMap(allocator: mem.Allocator, env_map: const std.BufMap) ![]?[*]u8 {
		614	const envp_count = env_map.count();
		615	const envp_buf = try allocator.alloc(?[*]u8, envp_count + 1);
		616	mem.set(?[*]u8, envp_buf, null);
		617	errdefer freeNullDelimitedEnvMap(allocator, envp_buf);
		618	{
		619	var it = env_map.iterator();
		620	var i: usize = 0;
		621	while (it.next()) \|pair\| : (i += 1) {
		622	const env_buf = try allocator.alloc(u8, pair.key.len + pair.value.len + 2);
		623	@memcpy(env_buf.ptr, pair.key.ptr, pair.key.len);
		624	env_buf[pair.key.len] = '=';
		625	@memcpy(env_buf.ptr + pair.key.len + 1, pair.value.ptr, pair.value.len);
		626	env_buf[env_buf.len - 1] = 0;
		627
		628	envp_buf[i] = env_buf.ptr;
		629	}
		630	assert(i == envp_count);
		631	}
		632	assert(envp_buf[envp_count] == null);
		633	return envp_buf;
		634	}
		635
		636	pub fn freeNullDelimitedEnvMap(allocator: mem.Allocator, envp_buf: []?[]u8) void {
		637	for (envp_buf) \|env\| {
		638	const env_buf = if (env) \|ptr\| ptr[0 .. mem.len(u8, ptr) + 1] else break;
		639	allocator.free(env_buf);
665	}	640	}
666	return posixExecveErrnoToErr(err);	641	allocator.free(envp_buf);
667	}	642	}
668		643
669	pub const PosixExecveError = error{	644	pub const ExecveError = error{
670	SystemResources,	645	SystemResources,
671	AccessDenied,	646	AccessDenied,
672	InvalidExe,	647	InvalidExe,
...	@@ -675,1840 +650,599 @@ pub const PosixExecveError = error{	...	@@ -675,1840 +650,599 @@ pub const PosixExecveError = error{
675	FileNotFound,	650	FileNotFound,
676	NotDir,	651	NotDir,
677	FileBusy,	652	FileBusy,
		653	ProcessFdQuotaExceeded,
		654	SystemFdQuotaExceeded,
		655	NameTooLong,
678		656
679	/// See https://github.com/ziglang/zig/issues/1396
680	Unexpected,	657	Unexpected,
681	};	658	};
682		659
683	fn posixExecveErrnoToErr(err: usize) PosixExecveError {	660	fn execveErrnoToErr(err: usize) ExecveError {
684	assert(err > 0);	661	assert(err > 0);
685	switch (err) {	662	switch (err) {
686	posix.EFAULT => unreachable,	663	EFAULT => unreachable,
687	posix.E2BIG => return error.SystemResources,	664	E2BIG => return error.SystemResources,
688	posix.EMFILE => return error.SystemResources,	665	EMFILE => return error.ProcessFdQuotaExceeded,
689	posix.ENAMETOOLONG => return error.SystemResources,	666	ENAMETOOLONG => return error.NameTooLong,
690	posix.ENFILE => return error.SystemResources,	667	ENFILE => return error.SystemFdQuotaExceeded,
691	posix.ENOMEM => return error.SystemResources,	668	ENOMEM => return error.SystemResources,
692	posix.EACCES => return error.AccessDenied,	669	EACCES => return error.AccessDenied,
693	posix.EPERM => return error.AccessDenied,	670	EPERM => return error.AccessDenied,
694	posix.EINVAL => return error.InvalidExe,	671	EINVAL => return error.InvalidExe,
695	posix.ENOEXEC => return error.InvalidExe,	672	ENOEXEC => return error.InvalidExe,
696	posix.EIO => return error.FileSystem,	673	EIO => return error.FileSystem,
697	posix.ELOOP => return error.FileSystem,	674	ELOOP => return error.FileSystem,
698	posix.EISDIR => return error.IsDir,	675	EISDIR => return error.IsDir,
699	posix.ENOENT => return error.FileNotFound,	676	ENOENT => return error.FileNotFound,
700	posix.ENOTDIR => return error.NotDir,	677	ENOTDIR => return error.NotDir,
701	posix.ETXTBSY => return error.FileBusy,	678	ETXTBSY => return error.FileBusy,
702	else => return unexpectedErrorPosix(err),	679	else => return unexpectedErrno(err),
703	}	680	}
704	}	681	}
705		682
706	pub var linux_elf_aux_maybe: ?[*]std.elf.Auxv = null;	683	/// Get an environment variable.
707	pub var posix_environ_raw: [][*]u8 = undefined;	684	/// See also `getenvC`.
708		685	/// TODO make this go through libc when we have it
709	/// See std.elf for the constants.	686	pub fn getenv(key: []const u8) ?[]const u8 {
710	pub fn linuxGetAuxVal(index: usize) usize {	687	for (environ) \|ptr\| {
711	if (builtin.link_libc) {	688	var line_i: usize = 0;
712	return usize(std.c.getauxval(index));	689	while (ptr[line_i] != 0 and ptr[line_i] != '=') : (line_i += 1) {}
713	} else if (linux_elf_aux_maybe) \|auxv\| {	690	const this_key = ptr[0..line_i];
714	var i: usize = 0;	691	if (!mem.eql(u8, key, this_key)) continue;
715	while (auxv[i].a_type != std.elf.AT_NULL) : (i += 1) {	692
716	if (auxv[i].a_type == index)	693	var end_i: usize = line_i;
717	return auxv[i].a_un.a_val;	694	while (ptr[end_i] != 0) : (end_i += 1) {}
718	}	695	const this_value = ptr[line_i + 1 .. end_i];
		696
		697	return this_value;
719	}	698	}
720	return 0;	699	return null;
721	}	700	}
722		701
723	pub fn getBaseAddress() usize {	702	/// Get an environment variable with a null-terminated name.
724	switch (builtin.os) {	703	/// See also `getenv`.
725	builtin.Os.linux => {	704	/// TODO https://github.com/ziglang/zig/issues/265
726	const base = linuxGetAuxVal(std.elf.AT_BASE);	705	pub fn getenvC(key: [*]const u8) ?[]const u8 {
727	if (base != 0) {	706	if (builtin.link_libc) {
728	return base;	707	const value = system.getenv(key) orelse return null;
729	}	708	return mem.toSliceConst(u8, value);
730	const phdr = linuxGetAuxVal(std.elf.AT_PHDR);
731	return phdr - @sizeOf(std.elf.Ehdr);
732	},
733	builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {
734	return @ptrToInt(&std.c._mh_execute_header);
735	},
736	builtin.Os.windows => return @ptrToInt(windows.GetModuleHandleW(null)),
737	else => @compileError("Unsupported OS"),
738	}	709	}
		710	return getenv(mem.toSliceConst(u8, key));
739	}	711	}
740		712
741	/// Caller must free result when done.	713	pub const GetCwdError = error{
742	/// TODO make this go through libc when we have it	714	NameTooLong,
743	pub fn getEnvMap(allocator: *Allocator) !BufMap {	715	CurrentWorkingDirectoryUnlinked,
744	var result = BufMap.init(allocator);	716	Unexpected,
745	errdefer result.deinit();	717	};
746
747	if (is_windows) {
748	const ptr = windows.GetEnvironmentStringsW() orelse return error.OutOfMemory;
749	defer assert(windows.FreeEnvironmentStringsW(ptr) != 0);
750
751	var i: usize = 0;
752	while (true) {
753	if (ptr[i] == 0) return result;
754
755	const key_start = i;
756
757	while (ptr[i] != 0 and ptr[i] != '=') : (i += 1) {}
758	const key_w = ptr[key_start..i];
759	const key = try std.unicode.utf16leToUtf8Alloc(allocator, key_w);
760	errdefer allocator.free(key);
761		718
762	if (ptr[i] == '=') i += 1;	719	/// The result is a slice of out_buffer, indexed from 0.
		720	pub fn getcwd(out_buffer: []u8) GetCwdError![]u8 {
		721	if (windows.is_the_target) {
		722	return windows.GetCurrentDirectory(out_buffer);
		723	}
763		724
764	const value_start = i;	725	const err = if (builtin.link_libc) blk: {
765	while (ptr[i] != 0) : (i += 1) {}	726	break :blk if (std.c.getcwd(out_buffer.ptr, out_buffer.len)) \|_\| 0 else std.c._errno().*;
766	const value_w = ptr[value_start..i];	727	} else blk: {
767	const value = try std.unicode.utf16leToUtf8Alloc(allocator, value_w);	728	break :blk errno(system.getcwd(out_buffer.ptr, out_buffer.len));
768	errdefer allocator.free(value);	729	};
		730	switch (err) {
		731	0 => return mem.toSlice(u8, out_buffer.ptr),
		732	EFAULT => unreachable,
		733	EINVAL => unreachable,
		734	ENOENT => return error.CurrentWorkingDirectoryUnlinked,
		735	ERANGE => return error.NameTooLong,
		736	else => return unexpectedErrno(@intCast(usize, err)),
		737	}
		738	}
769		739
770	i += 1; // skip over null byte	740	pub const SymLinkError = error{
771		741	AccessDenied,
772	try result.setMove(key, value);	742	DiskQuota,
773	}	743	PathAlreadyExists,
774	} else if (builtin.os == Os.wasi) {	744	FileSystem,
775	var environ_count: usize = undefined;	745	SymLinkLoop,
776	var environ_buf_size: usize = undefined;	746	FileNotFound,
777		747	SystemResources,
778	const environ_sizes_get_ret = std.os.wasi.environ_sizes_get(&environ_count, &environ_buf_size);	748	NoSpaceLeft,
779	if (environ_sizes_get_ret != os.wasi.ESUCCESS) {	749	ReadOnlyFileSystem,
780	return unexpectedErrorPosix(environ_sizes_get_ret);	750	NotDir,
781	}	751	NameTooLong,
782
783	// TODO: Verify that the documentation is incorrect
784	// https://github.com/WebAssembly/WASI/issues/27
785	var environ = try allocator.alloc(?[*]u8, environ_count + 1);
786	defer allocator.free(environ);
787	var environ_buf = try std.heap.wasm_allocator.alloc(u8, environ_buf_size);
788	defer allocator.free(environ_buf);
789
790	const environ_get_ret = std.os.wasi.environ_get(environ.ptr, environ_buf.ptr);
791	if (environ_get_ret != os.wasi.ESUCCESS) {
792	return unexpectedErrorPosix(environ_get_ret);
793	}
794
795	for (environ) \|env\| {
796	if (env) \|ptr\| {
797	const pair = mem.toSlice(u8, ptr);
798	var parts = mem.separate(pair, "=");
799	const key = parts.next().?;
800	const value = parts.next().?;
801	try result.set(key, value);
802	}
803	}
804	return result;
805	} else {
806	for (posix_environ_raw) \|ptr\| {
807	var line_i: usize = 0;
808	while (ptr[line_i] != 0 and ptr[line_i] != '=') : (line_i += 1) {}
809	const key = ptr[0..line_i];
810
811	var end_i: usize = line_i;
812	while (ptr[end_i] != 0) : (end_i += 1) {}
813	const value = ptr[line_i + 1 .. end_i];
814
815	try result.set(key, value);
816	}
817	return result;
818	}
819	}
820
821	test "os.getEnvMap" {
822	var env = try getEnvMap(std.debug.global_allocator);
823	defer env.deinit();
824	}
825
826	/// TODO make this go through libc when we have it
827	pub fn getEnvPosix(key: []const u8) ?[]const u8 {
828	for (posix_environ_raw) \|ptr\| {
829	var line_i: usize = 0;
830	while (ptr[line_i] != 0 and ptr[line_i] != '=') : (line_i += 1) {}
831	const this_key = ptr[0..line_i];
832	if (!mem.eql(u8, key, this_key)) continue;
833
834	var end_i: usize = line_i;
835	while (ptr[end_i] != 0) : (end_i += 1) {}
836	const this_value = ptr[line_i + 1 .. end_i];
837
838	return this_value;
839	}
840	return null;
841	}
842
843	pub const GetEnvVarOwnedError = error{
844	OutOfMemory,
845	EnvironmentVariableNotFound,
846
847	/// See https://github.com/ziglang/zig/issues/1774
848	InvalidUtf8,	752	InvalidUtf8,
		753	BadPathName,
		754	Unexpected,
849	};	755	};
850		756
851	/// Caller must free returned memory.	757	/// Creates a symbolic link named `sym_link_path` which contains the string `target_path`.
852	/// TODO make this go through libc when we have it	758	/// A symbolic link (also known as a soft link) may point to an existing file or to a nonexistent
853	pub fn getEnvVarOwned(allocator: *mem.Allocator, key: []const u8) GetEnvVarOwnedError![]u8 {	759	/// one; the latter case is known as a dangling link.
854	if (is_windows) {	760	/// If `sym_link_path` exists, it will not be overwritten.
855	const key_with_null = try std.unicode.utf8ToUtf16LeWithNull(allocator, key);	761	/// See also `symlinkC` and `symlinkW`.
856	defer allocator.free(key_with_null);	762	pub fn symlink(target_path: []const u8, sym_link_path: []const u8) SymLinkError!void {
857		763	if (windows.is_the_target) {
858	var buf = try allocator.alloc(u16, 256);	764	const target_path_w = try windows.sliceToPrefixedFileW(target_path);
859	defer allocator.free(buf);	765	const sym_link_path_w = try windows.sliceToPrefixedFileW(sym_link_path);
860		766	return windows.CreateSymbolicLinkW(&sym_link_path_w, &target_path_w, 0);
861	while (true) {
862	const windows_buf_len = math.cast(windows.DWORD, buf.len) catch return error.OutOfMemory;
863	const result = windows.GetEnvironmentVariableW(key_with_null.ptr, buf.ptr, windows_buf_len);
864
865	if (result == 0) {
866	const err = windows.GetLastError();
867	return switch (err) {
868	windows.ERROR.ENVVAR_NOT_FOUND => error.EnvironmentVariableNotFound,
869	else => {
870	unexpectedErrorWindows(err) catch {};
871	return error.EnvironmentVariableNotFound;
872	},
873	};
874	}
875
876	if (result > buf.len) {
877	buf = try allocator.realloc(buf, result);
878	continue;
879	}
880
881	return std.unicode.utf16leToUtf8Alloc(allocator, buf) catch \|err\| switch (err) {
882	error.DanglingSurrogateHalf => return error.InvalidUtf8,
883	error.ExpectedSecondSurrogateHalf => return error.InvalidUtf8,
884	error.UnexpectedSecondSurrogateHalf => return error.InvalidUtf8,
885	error.OutOfMemory => return error.OutOfMemory,
886	};
887	}
888	} else {	767	} else {
889	const result = getEnvPosix(key) orelse return error.EnvironmentVariableNotFound;	768	const target_path_c = try toPosixPath(target_path);
890	return mem.dupe(allocator, u8, result);	769	const sym_link_path_c = try toPosixPath(sym_link_path);
		770	return symlinkC(&target_path_c, &sym_link_path_c);
891	}	771	}
892	}	772	}
893		773
894	test "os.getEnvVarOwned" {	774	/// This is the same as `symlink` except the parameters are null-terminated pointers.
895	var ga = debug.global_allocator;	775	/// See also `symlink`.
896	testing.expectError(error.EnvironmentVariableNotFound, getEnvVarOwned(ga, "BADENV"));	776	pub fn symlinkC(target_path: []const u8, sym_link_path: []const u8) SymLinkError!void {
897	}	777	if (windows.is_the_target) {
898		778	const target_path_w = try windows.cStrToPrefixedFileW(target_path);
899	/// Caller must free the returned memory.	779	const sym_link_path_w = try windows.cStrToPrefixedFileW(sym_link_path);
900	pub fn getCwdAlloc(allocator: *Allocator) ![]u8 {	780	return windows.CreateSymbolicLinkW(&sym_link_path_w, &target_path_w, 0);
901	var buf: [MAX_PATH_BYTES]u8 = undefined;
902	return mem.dupe(allocator, u8, try getCwd(&buf));
903	}
904
905	pub const GetCwdError = error{Unexpected};
906
907	/// The result is a slice of out_buffer.
908	pub fn getCwd(out_buffer: *[MAX_PATH_BYTES]u8) GetCwdError![]u8 {
909	switch (builtin.os) {
910	Os.windows => {
911	var utf16le_buf: [windows_util.PATH_MAX_WIDE]u16 = undefined;
912	const casted_len = @intCast(windows.DWORD, utf16le_buf.len); // TODO shouldn't need this cast
913	const casted_ptr = ([*]u16)(&utf16le_buf); // TODO shouldn't need this cast
914	const result = windows.GetCurrentDirectoryW(casted_len, casted_ptr);
915	if (result == 0) {
916	const err = windows.GetLastError();
917	switch (err) {
918	else => return unexpectedErrorWindows(err),
919	}
920	}
921	assert(result <= utf16le_buf.len);
922	const utf16le_slice = utf16le_buf[0..result];
923	// Trust that Windows gives us valid UTF-16LE.
924	const end_index = std.unicode.utf16leToUtf8(out_buffer, utf16le_slice) catch unreachable;
925	return out_buffer[0..end_index];
926	},
927	else => {
928	const err = posix.getErrno(posix.getcwd(out_buffer, out_buffer.len));
929	switch (err) {
930	0 => return cstr.toSlice(out_buffer),
931	posix.ERANGE => unreachable,
932	else => return unexpectedErrorPosix(err),
933	}
934	},
935	}	781	}
936	}	782	switch (errno(system.symlink(target_path, sym_link_path))) {
		783	0 => return,
		784	EFAULT => unreachable,
		785	EINVAL => unreachable,
		786	EACCES => return error.AccessDenied,
		787	EPERM => return error.AccessDenied,
		788	EDQUOT => return error.DiskQuota,
		789	EEXIST => return error.PathAlreadyExists,
		790	EIO => return error.FileSystem,
		791	ELOOP => return error.SymLinkLoop,
		792	ENAMETOOLONG => return error.NameTooLong,
		793	ENOENT => return error.FileNotFound,
		794	ENOTDIR => return error.NotDir,
		795	ENOMEM => return error.SystemResources,
		796	ENOSPC => return error.NoSpaceLeft,
		797	EROFS => return error.ReadOnlyFileSystem,
		798	else => \|err\| return unexpectedErrno(err),
		799	}
		800	}
		801
		802	pub fn symlinkat(target_path: []const u8, newdirfd: fd_t, sym_link_path: []const u8) SymLinkError!void {
		803	const target_path_c = try toPosixPath(target_path);
		804	const sym_link_path_c = try toPosixPath(sym_link_path);
		805	return symlinkatC(target_path_c, newdirfd, sym_link_path_c);
		806	}
		807
		808	pub fn symlinkatC(target_path: []const u8, newdirfd: fd_t, sym_link_path: []const u8) SymLinkError!void {
		809	switch (errno(system.symlinkat(target_path, newdirfd, sym_link_path))) {
		810	0 => return,
		811	EFAULT => unreachable,
		812	EINVAL => unreachable,
		813	EACCES => return error.AccessDenied,
		814	EPERM => return error.AccessDenied,
		815	EDQUOT => return error.DiskQuota,
		816	EEXIST => return error.PathAlreadyExists,
		817	EIO => return error.FileSystem,
		818	ELOOP => return error.SymLinkLoop,
		819	ENAMETOOLONG => return error.NameTooLong,
		820	ENOENT => return error.FileNotFound,
		821	ENOTDIR => return error.NotDir,
		822	ENOMEM => return error.SystemResources,
		823	ENOSPC => return error.NoSpaceLeft,
		824	EROFS => return error.ReadOnlyFileSystem,
		825	else => \|err\| return unexpectedErrno(err),
		826	}
		827	}
		828
		829	pub const UnlinkError = error{
		830	FileNotFound,
		831	AccessDenied,
		832	FileBusy,
		833	FileSystem,
		834	IsDir,
		835	SymLinkLoop,
		836	NameTooLong,
		837	NotDir,
		838	SystemResources,
		839	ReadOnlyFileSystem,
		840	Unexpected,
937		841
938	test "os.getCwd" {	842	/// On Windows, file paths must be valid Unicode.
939	// at least call it so it gets compiled	843	InvalidUtf8,
940	_ = getCwdAlloc(debug.global_allocator) catch undefined;
941	var buf: [MAX_PATH_BYTES]u8 = undefined;
942	_ = getCwd(&buf) catch undefined;
943	}
944		844
945	pub const SymLinkError = PosixSymLinkError \|\| WindowsSymLinkError;	845	/// On Windows, file paths cannot contain these characters:
		846	/// '/', '*', '?', '"', '<', '>', '\|'
		847	BadPathName,
		848	};
946		849
947	/// TODO add a symLinkC variant	850	/// Delete a name and possibly the file it refers to.
948	pub fn symLink(existing_path: []const u8, new_path: []const u8) SymLinkError!void {	851	/// See also `unlinkC`.
949	if (is_windows) {	852	pub fn unlink(file_path: []const u8) UnlinkError!void {
950	return symLinkWindows(existing_path, new_path);	853	if (windows.is_the_target) {
		854	const file_path_w = try windows.sliceToPrefixedFileW(file_path);
		855	return windows.DeleteFileW(&file_path_w);
951	} else {	856	} else {
952	return symLinkPosix(existing_path, new_path);	857	const file_path_c = try toPosixPath(file_path);
		858	return unlinkC(&file_path_c);
953	}	859	}
954	}	860	}
955		861
956	pub const WindowsSymLinkError = error{	862	/// Same as `unlink` except the parameter is a null terminated UTF8-encoded string.
		863	pub fn unlinkC(file_path: [*]const u8) UnlinkError!void {
		864	if (windows.is_the_target) {
		865	const file_path_w = try windows.cStrToPrefixedFileW(file_path);
		866	return windows.DeleteFileW(&file_path_w);
		867	}
		868	switch (errno(system.unlink(file_path))) {
		869	0 => return,
		870	EACCES => return error.AccessDenied,
		871	EPERM => return error.AccessDenied,
		872	EBUSY => return error.FileBusy,
		873	EFAULT => unreachable,
		874	EINVAL => unreachable,
		875	EIO => return error.FileSystem,
		876	EISDIR => return error.IsDir,
		877	ELOOP => return error.SymLinkLoop,
		878	ENAMETOOLONG => return error.NameTooLong,
		879	ENOENT => return error.FileNotFound,
		880	ENOTDIR => return error.NotDir,
		881	ENOMEM => return error.SystemResources,
		882	EROFS => return error.ReadOnlyFileSystem,
		883	else => \|err\| return unexpectedErrno(err),
		884	}
		885	}
		886
		887	const RenameError = error{
		888	AccessDenied,
		889	FileBusy,
		890	DiskQuota,
		891	IsDir,
		892	SymLinkLoop,
		893	LinkQuotaExceeded,
957	NameTooLong,	894	NameTooLong,
		895	FileNotFound,
		896	NotDir,
		897	SystemResources,
		898	NoSpaceLeft,
		899	PathAlreadyExists,
		900	ReadOnlyFileSystem,
		901	RenameAcrossMountPoints,
958	InvalidUtf8,	902	InvalidUtf8,
959	BadPathName,	903	BadPathName,
960
961	/// See https://github.com/ziglang/zig/issues/1396
962	Unexpected,	904	Unexpected,
963	};	905	};
964		906
965	pub fn symLinkW(existing_path_w: []const u16, new_path_w: []const u16) WindowsSymLinkError!void {	907	/// Change the name or location of a file.
966	if (windows.CreateSymbolicLinkW(existing_path_w, new_path_w, 0) == 0) {	908	pub fn rename(old_path: []const u8, new_path: []const u8) RenameError!void {
967	const err = windows.GetLastError();	909	if (windows.is_the_target) {
968	switch (err) {	910	const old_path_w = try windows.sliceToPrefixedFileW(old_path);
969	else => return unexpectedErrorWindows(err),	911	const new_path_w = try windows.sliceToPrefixedFileW(new_path);
970	}	912	return renameW(&old_path_w, &new_path_w);
		913	} else {
		914	const old_path_c = try toPosixPath(old_path);
		915	const new_path_c = try toPosixPath(new_path);
		916	return renameC(&old_path_c, &new_path_c);
971	}	917	}
972	}	918	}
973		919
974	pub fn symLinkWindows(existing_path: []const u8, new_path: []const u8) WindowsSymLinkError!void {	920	/// Same as `rename` except the parameters are null-terminated byte arrays.
975	const existing_path_w = try windows_util.sliceToPrefixedFileW(existing_path);	921	pub fn renameC(old_path: []const u8, new_path: []const u8) RenameError!void {
976	const new_path_w = try windows_util.sliceToPrefixedFileW(new_path);	922	if (windows.is_the_target) {
977	return symLinkW(&existing_path_w, &new_path_w);	923	const old_path_w = try windows.cStrToPrefixedFileW(old_path);
		924	const new_path_w = try windows.cStrToPrefixedFileW(new_path);
		925	return renameW(&old_path_w, &new_path_w);
		926	}
		927	switch (errno(system.rename(old_path, new_path))) {
		928	0 => return,
		929	EACCES => return error.AccessDenied,
		930	EPERM => return error.AccessDenied,
		931	EBUSY => return error.FileBusy,
		932	EDQUOT => return error.DiskQuota,
		933	EFAULT => unreachable,
		934	EINVAL => unreachable,
		935	EISDIR => return error.IsDir,
		936	ELOOP => return error.SymLinkLoop,
		937	EMLINK => return error.LinkQuotaExceeded,
		938	ENAMETOOLONG => return error.NameTooLong,
		939	ENOENT => return error.FileNotFound,
		940	ENOTDIR => return error.NotDir,
		941	ENOMEM => return error.SystemResources,
		942	ENOSPC => return error.NoSpaceLeft,
		943	EEXIST => return error.PathAlreadyExists,
		944	ENOTEMPTY => return error.PathAlreadyExists,
		945	EROFS => return error.ReadOnlyFileSystem,
		946	EXDEV => return error.RenameAcrossMountPoints,
		947	else => \|err\| return unexpectedErrno(err),
		948	}
		949	}
		950
		951	/// Same as `rename` except the parameters are null-terminated UTF16LE encoded byte arrays.
		952	/// Assumes target is Windows.
		953	pub fn renameW(old_path: []const u16, new_path: []const u16) RenameError!void {
		954	const flags = windows.MOVEFILE_REPLACE_EXISTING \| windows.MOVEFILE_WRITE_THROUGH;
		955	return windows.MoveFileExW(old_path, new_path, flags);
978	}	956	}
979		957
980	pub const PosixSymLinkError = error{	958	pub const MakeDirError = error{
981	AccessDenied,	959	AccessDenied,
982	DiskQuota,	960	DiskQuota,
983	PathAlreadyExists,	961	PathAlreadyExists,
984	FileSystem,
985	SymLinkLoop,	962	SymLinkLoop,
		963	LinkQuotaExceeded,
986	NameTooLong,	964	NameTooLong,
987	FileNotFound,	965	FileNotFound,
988	SystemResources,	966	SystemResources,
989	NoSpaceLeft,	967	NoSpaceLeft,
990	ReadOnlyFileSystem,
991	NotDir,	968	NotDir,
992		969	ReadOnlyFileSystem,
993	/// See https://github.com/ziglang/zig/issues/1396	970	InvalidUtf8,
		971	BadPathName,
994	Unexpected,	972	Unexpected,
995	};	973	};
996		974
997	pub fn symLinkPosixC(existing_path: []const u8, new_path: []const u8) PosixSymLinkError!void {	975	/// Create a directory.
998	const err = posix.getErrno(posix.symlink(existing_path, new_path));	976	/// `mode` is ignored on Windows.
999	switch (err) {	977	pub fn mkdir(dir_path: []const u8, mode: u32) MakeDirError!void {
1000	0 => return,	978	if (windows.is_the_target) {
1001	posix.EFAULT => unreachable,	979	const dir_path_w = try windows.sliceToPrefixedFileW(dir_path);
1002	posix.EINVAL => unreachable,	980	return windows.CreateDirectoryW(&dir_path_w, null);
1003	posix.EACCES => return error.AccessDenied,	981	} else {
1004	posix.EPERM => return error.AccessDenied,	982	const dir_path_c = try toPosixPath(dir_path);
1005	posix.EDQUOT => return error.DiskQuota,	983	return mkdirC(&dir_path_c, mode);
1006	posix.EEXIST => return error.PathAlreadyExists,
1007	posix.EIO => return error.FileSystem,
1008	posix.ELOOP => return error.SymLinkLoop,
1009	posix.ENAMETOOLONG => return error.NameTooLong,
1010	posix.ENOENT => return error.FileNotFound,
1011	posix.ENOTDIR => return error.NotDir,
1012	posix.ENOMEM => return error.SystemResources,
1013	posix.ENOSPC => return error.NoSpaceLeft,
1014	posix.EROFS => return error.ReadOnlyFileSystem,
1015	else => return unexpectedErrorPosix(err),
1016	}
1017	}
1018
1019	pub fn symLinkPosix(existing_path: []const u8, new_path: []const u8) PosixSymLinkError!void {
1020	const existing_path_c = try toPosixPath(existing_path);
1021	const new_path_c = try toPosixPath(new_path);
1022	return symLinkPosixC(&existing_path_c, &new_path_c);
1023	}
1024
1025	// here we replace the standard +/ with -_ so that it can be used in a file name
1026	const b64_fs_encoder = base64.Base64Encoder.init("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_", base64.standard_pad_char);
1027
1028	/// TODO remove the allocator requirement from this API
1029	pub fn atomicSymLink(allocator: *Allocator, existing_path: []const u8, new_path: []const u8) !void {
1030	if (symLink(existing_path, new_path)) {
1031	return;
1032	} else \|err\| switch (err) {
1033	error.PathAlreadyExists => {},
1034	else => return err, // TODO zig should know this set does not include PathAlreadyExists
1035	}	984	}
		985	}
1036		986
1037	const dirname = os.path.dirname(new_path) orelse ".";	987	/// Same as `mkdir` but the parameter is a null-terminated UTF8-encoded string.
1038		988	pub fn mkdirC(dir_path: [*]const u8, mode: u32) MakeDirError!void {
1039	var rand_buf: [12]u8 = undefined;	989	if (windows.is_the_target) {
1040	const tmp_path = try allocator.alloc(u8, dirname.len + 1 + base64.Base64Encoder.calcSize(rand_buf.len));	990	const dir_path_w = try windows.cStrToPrefixedFileW(dir_path);
1041	defer allocator.free(tmp_path);	991	return windows.CreateDirectoryW(&dir_path_w, null);
1042	mem.copy(u8, tmp_path[0..], dirname);	992	}
1043	tmp_path[dirname.len] = os.path.sep;	993	switch (errno(system.mkdir(dir_path, mode))) {
1044	while (true) {	994	0 => return,
1045	try getRandomBytes(rand_buf[0..]);	995	EACCES => return error.AccessDenied,
1046	b64_fs_encoder.encode(tmp_path[dirname.len + 1 ..], rand_buf);	996	EPERM => return error.AccessDenied,
1047		997	EDQUOT => return error.DiskQuota,
1048	if (symLink(existing_path, tmp_path)) {	998	EEXIST => return error.PathAlreadyExists,
1049	return rename(tmp_path, new_path);	999	EFAULT => unreachable,
1050	} else \|err\| switch (err) {	1000	ELOOP => return error.SymLinkLoop,
1051	error.PathAlreadyExists => continue,	1001	EMLINK => return error.LinkQuotaExceeded,
1052	else => return err, // TODO zig should know this set does not include PathAlreadyExists	1002	ENAMETOOLONG => return error.NameTooLong,
1053	}	1003	ENOENT => return error.FileNotFound,
		1004	ENOMEM => return error.SystemResources,
		1005	ENOSPC => return error.NoSpaceLeft,
		1006	ENOTDIR => return error.NotDir,
		1007	EROFS => return error.ReadOnlyFileSystem,
		1008	else => \|err\| return unexpectedErrno(err),
1054	}	1009	}
1055	}	1010	}
1056		1011
1057	pub const DeleteFileError = error{	1012	pub const DeleteDirError = error{
1058	FileNotFound,
1059	AccessDenied,	1013	AccessDenied,
1060	FileBusy,	1014	FileBusy,
1061	FileSystem,
1062	IsDir,
1063	SymLinkLoop,	1015	SymLinkLoop,
1064	NameTooLong,	1016	NameTooLong,
1065	NotDir,	1017	FileNotFound,
1066	SystemResources,	1018	SystemResources,
		1019	NotDir,
		1020	DirNotEmpty,
1067	ReadOnlyFileSystem,	1021	ReadOnlyFileSystem,
1068
1069	/// On Windows, file paths must be valid Unicode.
1070	InvalidUtf8,	1022	InvalidUtf8,
1071
1072	/// On Windows, file paths cannot contain these characters:
1073	/// '/', '*', '?', '"', '<', '>', '\|'
1074	BadPathName,	1023	BadPathName,
1075
1076	/// See https://github.com/ziglang/zig/issues/1396
1077	Unexpected,	1024	Unexpected,
1078	};	1025	};
1079		1026
1080	pub fn deleteFile(file_path: []const u8) DeleteFileError!void {	1027	/// Deletes an empty directory.
1081	if (builtin.os == Os.windows) {	1028	pub fn rmdir(dir_path: []const u8) DeleteDirError!void {
1082	const file_path_w = try windows_util.sliceToPrefixedFileW(file_path);	1029	if (windows.is_the_target) {
1083	return deleteFileW(&file_path_w);	1030	const dir_path_w = try windows.sliceToPrefixedFileW(dir_path);
		1031	return windows.RemoveDirectoryW(&dir_path_w);
1084	} else {	1032	} else {
1085	const file_path_c = try toPosixPath(file_path);	1033	const dir_path_c = try toPosixPath(dir_path);
1086	return deleteFileC(&file_path_c);	1034	return rmdirC(&dir_path_c);
1087	}	1035	}
1088	}	1036	}
1089		1037
1090	pub fn deleteFileW(file_path: [*]const u16) DeleteFileError!void {	1038	/// Same as `rmdir` except the parameter is null-terminated.
1091	if (windows.DeleteFileW(file_path) == 0) {	1039	pub fn rmdirC(dir_path: [*]const u8) DeleteDirError!void {
1092	const err = windows.GetLastError();	1040	if (windows.is_the_target) {
1093	switch (err) {	1041	const dir_path_w = try windows.cStrToPrefixedFileW(dir_path);
1094	windows.ERROR.FILE_NOT_FOUND => return error.FileNotFound,	1042	return windows.RemoveDirectoryW(&dir_path_w);
1095	windows.ERROR.ACCESS_DENIED => return error.AccessDenied,
1096	windows.ERROR.FILENAME_EXCED_RANGE => return error.NameTooLong,
1097	windows.ERROR.INVALID_PARAMETER => return error.NameTooLong,
1098	else => return unexpectedErrorWindows(err),
1099	}
1100	}	1043	}
1101	}	1044	switch (errno(system.rmdir(dir_path))) {
		1045	0 => return,
		1046	EACCES => return error.AccessDenied,
		1047	EPERM => return error.AccessDenied,
		1048	EBUSY => return error.FileBusy,
		1049	EFAULT => unreachable,
		1050	EINVAL => unreachable,
		1051	ELOOP => return error.SymLinkLoop,
		1052	ENAMETOOLONG => return error.NameTooLong,
		1053	ENOENT => return error.FileNotFound,
		1054	ENOMEM => return error.SystemResources,
		1055	ENOTDIR => return error.NotDir,
		1056	EEXIST => return error.DirNotEmpty,
		1057	ENOTEMPTY => return error.DirNotEmpty,
		1058	EROFS => return error.ReadOnlyFileSystem,
		1059	else => \|err\| return unexpectedErrno(err),
		1060	}
		1061	}
		1062
		1063	pub const ChangeCurDirError = error{
		1064	AccessDenied,
		1065	FileSystem,
		1066	SymLinkLoop,
		1067	NameTooLong,
		1068	FileNotFound,
		1069	SystemResources,
		1070	NotDir,
		1071	Unexpected,
		1072	};
1102		1073
1103	pub fn deleteFileC(file_path: [*]const u8) DeleteFileError!void {	1074	/// Changes the current working directory of the calling process.
1104	if (is_windows) {	1075	/// `dir_path` is recommended to be a UTF-8 encoded string.
1105	const file_path_w = try windows_util.cStrToPrefixedFileW(file_path);	1076	pub fn chdir(dir_path: []const u8) ChangeCurDirError!void {
1106	return deleteFileW(&file_path_w);	1077	if (windows.is_the_target) {
		1078	const dir_path_w = try windows.sliceToPrefixedFileW(dir_path);
		1079	@compileError("TODO implement chdir for Windows");
1107	} else {	1080	} else {
1108	const err = posix.getErrno(posix.unlink(file_path));	1081	const dir_path_c = try toPosixPath(dir_path);
1109	switch (err) {	1082	return chdirC(&dir_path_c);
1110	0 => return,
1111	posix.EACCES => return error.AccessDenied,
1112	posix.EPERM => return error.AccessDenied,
1113	posix.EBUSY => return error.FileBusy,
1114	posix.EFAULT => unreachable,
1115	posix.EINVAL => unreachable,
1116	posix.EIO => return error.FileSystem,
1117	posix.EISDIR => return error.IsDir,
1118	posix.ELOOP => return error.SymLinkLoop,
1119	posix.ENAMETOOLONG => return error.NameTooLong,
1120	posix.ENOENT => return error.FileNotFound,
1121	posix.ENOTDIR => return error.NotDir,
1122	posix.ENOMEM => return error.SystemResources,
1123	posix.EROFS => return error.ReadOnlyFileSystem,
1124	else => return unexpectedErrorPosix(err),
1125	}
1126	}	1083	}
1127	}	1084	}
1128		1085
1129	/// Guaranteed to be atomic. However until https://patchwork.kernel.org/patch/9636735/ is	1086	/// Same as `chdir` except the parameter is null-terminated.
1130	/// merged and readily available,	1087	pub fn chdirC(dir_path: [*]const u8) ChangeCurDirError!void {
1131	/// there is a possibility of power loss or application termination leaving temporary files present	1088	if (windows.is_the_target) {
1132	/// in the same directory as dest_path.	1089	const dir_path_w = try windows.cStrToPrefixedFileW(dir_path);
1133	/// Destination file will have the same mode as the source file.	1090	@compileError("TODO implement chdir for Windows");
1134	pub fn copyFile(source_path: []const u8, dest_path: []const u8) !void {	1091	}
1135	var in_file = try os.File.openRead(source_path);	1092	switch (errno(system.chdir(dir_path))) {
1136	defer in_file.close();	1093	0 => return,
1137		1094	EACCES => return error.AccessDenied,
1138	const mode = try in_file.mode();	1095	EFAULT => unreachable,
1139	const in_stream = &in_file.inStream().stream;	1096	EIO => return error.FileSystem,
1140		1097	ELOOP => return error.SymLinkLoop,
1141	var atomic_file = try AtomicFile.init(dest_path, mode);	1098	ENAMETOOLONG => return error.NameTooLong,
1142	defer atomic_file.deinit();	1099	ENOENT => return error.FileNotFound,
1143		1100	ENOMEM => return error.SystemResources,
1144	var buf: [page_size]u8 = undefined;	1101	ENOTDIR => return error.NotDir,
1145	while (true) {	1102	else => \|err\| return unexpectedErrno(err),
1146	const amt = try in_stream.readFull(buf[0..]);
1147	try atomic_file.file.write(buf[0..amt]);
1148	if (amt != buf.len) {
1149	return atomic_file.finish();
1150	}
1151	}	1103	}
1152	}	1104	}
1153		1105
1154	/// Guaranteed to be atomic. However until https://patchwork.kernel.org/patch/9636735/ is	1106	pub const ReadLinkError = error{
1155	/// merged and readily available,	1107	AccessDenied,
1156	/// there is a possibility of power loss or application termination leaving temporary files present	1108	FileSystem,
1157	pub fn copyFileMode(source_path: []const u8, dest_path: []const u8, mode: File.Mode) !void {	1109	SymLinkLoop,
1158	var in_file = try os.File.openRead(source_path);	1110	NameTooLong,
1159	defer in_file.close();	1111	FileNotFound,
1160		1112	SystemResources,
1161	var atomic_file = try AtomicFile.init(dest_path, mode);	1113	NotDir,
1162	defer atomic_file.deinit();	1114	Unexpected,
		1115	};
1163		1116
1164	var buf: [page_size]u8 = undefined;	1117	/// Read value of a symbolic link.
1165	while (true) {	1118	/// The return value is a slice of `out_buffer` from index 0.
1166	const amt = try in_file.read(buf[0..]);	1119	pub fn readlink(file_path: []const u8, out_buffer: []u8) ReadLinkError![]u8 {
1167	try atomic_file.file.write(buf[0..amt]);	1120	if (windows.is_the_target) {
1168	if (amt != buf.len) {	1121	const file_path_w = try windows.sliceToPrefixedFileW(file_path);
1169	return atomic_file.finish();	1122	@compileError("TODO implement readlink for Windows");
1170	}	1123	} else {
		1124	const file_path_c = try toPosixPath(file_path);
		1125	return readlinkC(&file_path_c, out_buffer);
1171	}	1126	}
1172	}	1127	}
1173		1128
1174	pub const AtomicFile = struct {	1129	/// Same as `readlink` except `file_path` is null-terminated.
1175	file: os.File,	1130	pub fn readlinkC(file_path: [*]const u8, out_buffer: []u8) ReadLinkError![]u8 {
1176	tmp_path_buf: [MAX_PATH_BYTES]u8,	1131	if (windows.is_the_target) {
1177	dest_path: []const u8,	1132	const file_path_w = try windows.cStrToPrefixedFileW(file_path);
1178	finished: bool,	1133	@compileError("TODO implement readlink for Windows");
1179
1180	const InitError = os.File.OpenError;
1181
1182	/// dest_path must remain valid for the lifetime of AtomicFile
1183	/// call finish to atomically replace dest_path with contents
1184	/// TODO once we have null terminated pointers, use the
1185	/// openWriteNoClobberN function
1186	pub fn init(dest_path: []const u8, mode: File.Mode) InitError!AtomicFile {
1187	const dirname = os.path.dirname(dest_path);
1188	var rand_buf: [12]u8 = undefined;
1189	const dirname_component_len = if (dirname) \|d\| d.len + 1 else 0;
1190	const encoded_rand_len = comptime base64.Base64Encoder.calcSize(rand_buf.len);
1191	const tmp_path_len = dirname_component_len + encoded_rand_len;
1192	var tmp_path_buf: [MAX_PATH_BYTES]u8 = undefined;
1193	if (tmp_path_len >= tmp_path_buf.len) return error.NameTooLong;
1194
1195	if (dirname) \|dir\| {
1196	mem.copy(u8, tmp_path_buf[0..], dir);
1197	tmp_path_buf[dir.len] = os.path.sep;
1198	}
1199
1200	tmp_path_buf[tmp_path_len] = 0;
1201
1202	while (true) {
1203	try getRandomBytes(rand_buf[0..]);
1204	b64_fs_encoder.encode(tmp_path_buf[dirname_component_len..tmp_path_len], rand_buf);
1205
1206	const file = os.File.openWriteNoClobberC(&tmp_path_buf, mode) catch \|err\| switch (err) {
1207	error.PathAlreadyExists => continue,
1208	// TODO zig should figure out that this error set does not include PathAlreadyExists since
1209	// it is handled in the above switch
1210	else => return err,
1211	};
1212
1213	return AtomicFile{
1214	.file = file,
1215	.tmp_path_buf = tmp_path_buf,
1216	.dest_path = dest_path,
1217	.finished = false,
1218	};
1219	}
1220	}	1134	}
1221		1135	const rc = system.readlink(file_path, out_buffer.ptr, out_buffer.len);
1222	/// always call deinit, even after successful finish()	1136	switch (errno(rc)) {
1223	pub fn deinit(self: *AtomicFile) void {	1137	0 => return out_buffer[0..@bitCast(usize, rc)],
1224	if (!self.finished) {	1138	EACCES => return error.AccessDenied,
1225	self.file.close();	1139	EFAULT => unreachable,
1226	deleteFileC(&self.tmp_path_buf) catch {};	1140	EINVAL => unreachable,
1227	self.finished = true;	1141	EIO => return error.FileSystem,
1228	}	1142	ELOOP => return error.SymLinkLoop,
		1143	ENAMETOOLONG => return error.NameTooLong,
		1144	ENOENT => return error.FileNotFound,
		1145	ENOMEM => return error.SystemResources,
		1146	ENOTDIR => return error.NotDir,
		1147	else => \|err\| return unexpectedErrno(err),
1229	}	1148	}
		1149	}
1230		1150
1231	pub fn finish(self: *AtomicFile) !void {	1151	pub const SetIdError = error{
1232	assert(!self.finished);	1152	ResourceLimitReached,
1233	self.file.close();	1153	InvalidUserId,
1234	self.finished = true;	1154	PermissionDenied,
1235	if (is_posix) {	1155	Unexpected,
1236	const dest_path_c = try toPosixPath(self.dest_path);
1237	return renameC(&self.tmp_path_buf, &dest_path_c);
1238	} else if (is_windows) {
1239	const dest_path_w = try windows_util.sliceToPrefixedFileW(self.dest_path);
1240	const tmp_path_w = try windows_util.cStrToPrefixedFileW(&self.tmp_path_buf);
1241	return renameW(&tmp_path_w, &dest_path_w);
1242	} else {
1243	@compileError("Unsupported OS");
1244	}
1245	}
1246	};	1156	};
1247		1157
1248	pub fn renameC(old_path: []const u8, new_path: []const u8) !void {	1158	pub fn setuid(uid: u32) SetIdError!void {
1249	if (is_windows) {	1159	switch (errno(system.setuid(uid))) {
1250	const old_path_w = try windows_util.cStrToPrefixedFileW(old_path);	1160	0 => return,
1251	const new_path_w = try windows_util.cStrToPrefixedFileW(new_path);	1161	EAGAIN => return error.ResourceLimitReached,
1252	return renameW(&old_path_w, &new_path_w);	1162	EINVAL => return error.InvalidUserId,
1253	} else {	1163	EPERM => return error.PermissionDenied,
1254	const err = posix.getErrno(posix.rename(old_path, new_path));	1164	else => \|err\| return unexpectedErrno(err),
1255	switch (err) {
1256	0 => return,
1257	posix.EACCES => return error.AccessDenied,
1258	posix.EPERM => return error.AccessDenied,
1259	posix.EBUSY => return error.FileBusy,
1260	posix.EDQUOT => return error.DiskQuota,
1261	posix.EFAULT => unreachable,
1262	posix.EINVAL => unreachable,
1263	posix.EISDIR => return error.IsDir,
1264	posix.ELOOP => return error.SymLinkLoop,
1265	posix.EMLINK => return error.LinkQuotaExceeded,
1266	posix.ENAMETOOLONG => return error.NameTooLong,
1267	posix.ENOENT => return error.FileNotFound,
1268	posix.ENOTDIR => return error.NotDir,
1269	posix.ENOMEM => return error.SystemResources,
1270	posix.ENOSPC => return error.NoSpaceLeft,
1271	posix.EEXIST => return error.PathAlreadyExists,
1272	posix.ENOTEMPTY => return error.PathAlreadyExists,
1273	posix.EROFS => return error.ReadOnlyFileSystem,
1274	posix.EXDEV => return error.RenameAcrossMountPoints,
1275	else => return unexpectedErrorPosix(err),
1276	}
1277	}	1165	}
1278	}	1166	}
1279		1167
1280	pub fn renameW(old_path: []const u16, new_path: []const u16) !void {	1168	pub fn setreuid(ruid: u32, euid: u32) SetIdError!void {
1281	const flags = windows.MOVEFILE_REPLACE_EXISTING \| windows.MOVEFILE_WRITE_THROUGH;	1169	switch (errno(system.setreuid(ruid, euid))) {
1282	if (windows.MoveFileExW(old_path, new_path, flags) == 0) {	1170	0 => return,
1283	const err = windows.GetLastError();	1171	EAGAIN => return error.ResourceLimitReached,
1284	switch (err) {	1172	EINVAL => return error.InvalidUserId,
1285	else => return unexpectedErrorWindows(err),	1173	EPERM => return error.PermissionDenied,
1286	}	1174	else => \|err\| return unexpectedErrno(err),
1287	}	1175	}
1288	}	1176	}
1289		1177
1290	pub fn rename(old_path: []const u8, new_path: []const u8) !void {	1178	pub fn setgid(gid: u32) SetIdError!void {
1291	if (is_windows) {	1179	switch (errno(system.setgid(gid))) {
1292	const old_path_w = try windows_util.sliceToPrefixedFileW(old_path);	1180	0 => return,
1293	const new_path_w = try windows_util.sliceToPrefixedFileW(new_path);	1181	EAGAIN => return error.ResourceLimitReached,
1294	return renameW(&old_path_w, &new_path_w);	1182	EINVAL => return error.InvalidUserId,
1295	} else {	1183	EPERM => return error.PermissionDenied,
1296	const old_path_c = try toPosixPath(old_path);	1184	else => \|err\| return unexpectedErrno(err),
1297	const new_path_c = try toPosixPath(new_path);
1298	return renameC(&old_path_c, &new_path_c);
1299	}	1185	}
1300	}	1186	}
1301		1187
1302	pub fn makeDir(dir_path: []const u8) !void {	1188	pub fn setregid(rgid: u32, egid: u32) SetIdError!void {
1303	if (is_windows) {	1189	switch (errno(system.setregid(rgid, egid))) {
1304	return makeDirWindows(dir_path);	1190	0 => return,
1305	} else {	1191	EAGAIN => return error.ResourceLimitReached,
1306	return makeDirPosix(dir_path);	1192	EINVAL => return error.InvalidUserId,
		1193	EPERM => return error.PermissionDenied,
		1194	else => \|err\| return unexpectedErrno(err),
1307	}	1195	}
1308	}	1196	}
1309		1197
1310	pub fn makeDirWindows(dir_path: []const u8) !void {	1198	/// Test whether a file descriptor refers to a terminal.
1311	const dir_path_w = try windows_util.sliceToPrefixedFileW(dir_path);	1199	pub fn isatty(handle: fd_t) bool {
		1200	if (windows.is_the_target) {
		1201	if (isCygwinPty(handle))
		1202	return true;
1312		1203
1313	if (windows.CreateDirectoryW(&dir_path_w, null) == 0) {	1204	var out: windows.DWORD = undefined;
1314	const err = windows.GetLastError();	1205	return windows.kernel32.GetConsoleMode(handle, &out) != 0;
1315	return switch (err) {
1316	windows.ERROR.ALREADY_EXISTS => error.PathAlreadyExists,
1317	windows.ERROR.PATH_NOT_FOUND => error.FileNotFound,
1318	else => unexpectedErrorWindows(err),
1319	};
1320	}	1206	}
1321	}	1207	if (builtin.link_libc) {
1322		1208	return system.isatty(handle) != 0;
1323	pub fn makeDirPosixC(dir_path: [*]const u8) !void {
1324	const err = posix.getErrno(posix.mkdir(dir_path, 0o755));
1325	switch (err) {
1326	0 => return,
1327	posix.EACCES => return error.AccessDenied,
1328	posix.EPERM => return error.AccessDenied,
1329	posix.EDQUOT => return error.DiskQuota,
1330	posix.EEXIST => return error.PathAlreadyExists,
1331	posix.EFAULT => unreachable,
1332	posix.ELOOP => return error.SymLinkLoop,
1333	posix.EMLINK => return error.LinkQuotaExceeded,
1334	posix.ENAMETOOLONG => return error.NameTooLong,
1335	posix.ENOENT => return error.FileNotFound,
1336	posix.ENOMEM => return error.SystemResources,
1337	posix.ENOSPC => return error.NoSpaceLeft,
1338	posix.ENOTDIR => return error.NotDir,
1339	posix.EROFS => return error.ReadOnlyFileSystem,
1340	else => return unexpectedErrorPosix(err),
1341	}
1342	}
1343
1344	pub fn makeDirPosix(dir_path: []const u8) !void {
1345	const dir_path_c = try toPosixPath(dir_path);
1346	return makeDirPosixC(&dir_path_c);
1347	}
1348
1349	/// Calls makeDir recursively to make an entire path. Returns success if the path
1350	/// already exists and is a directory.
1351	/// TODO determine if we can remove the allocator requirement from this function
1352	pub fn makePath(allocator: *Allocator, full_path: []const u8) !void {
1353	const resolved_path = try path.resolve(allocator, [][]const u8{full_path});
1354	defer allocator.free(resolved_path);
1355
1356	var end_index: usize = resolved_path.len;
1357	while (true) {
1358	makeDir(resolved_path[0..end_index]) catch \|err\| switch (err) {
1359	error.PathAlreadyExists => {
1360	// TODO stat the file and return an error if it's not a directory
1361	// this is important because otherwise a dangling symlink
1362	// could cause an infinite loop
1363	if (end_index == resolved_path.len) return;
1364	},
1365	error.FileNotFound => {
1366	// march end_index backward until next path component
1367	while (true) {
1368	end_index -= 1;
1369	if (os.path.isSep(resolved_path[end_index])) break;
1370	}
1371	continue;
1372	},
1373	else => return err,
1374	};
1375	if (end_index == resolved_path.len) return;
1376	// march end_index forward until next path component
1377	while (true) {
1378	end_index += 1;
1379	if (end_index == resolved_path.len or os.path.isSep(resolved_path[end_index])) break;
1380	}
1381	}	1209	}
		1210	if (wasi.is_the_target) {
		1211	@compileError("TODO implement std.os.isatty for WASI");
		1212	}
		1213	if (linux.is_the_target) {
		1214	var wsz: linux.winsize = undefined;
		1215	return linux.syscall3(linux.SYS_ioctl, @bitCast(usize, isize(handle)), linux.TIOCGWINSZ, @ptrToInt(&wsz)) == 0;
		1216	}
		1217	unreachable;
1382	}	1218	}
1383		1219
1384	pub const DeleteDirError = error{	1220	pub fn isCygwinPty(handle: fd_t) bool {
1385	AccessDenied,	1221	if (!windows.is_the_target) return false;
1386	FileBusy,
1387	SymLinkLoop,
1388	NameTooLong,
1389	FileNotFound,
1390	SystemResources,
1391	NotDir,
1392	DirNotEmpty,
1393	ReadOnlyFileSystem,
1394	InvalidUtf8,
1395	BadPathName,
1396		1222
1397	/// See https://github.com/ziglang/zig/issues/1396	1223	const size = @sizeOf(windows.FILE_NAME_INFO);
1398	Unexpected,	1224	var name_info_bytes align(@alignOf(windows.FILE_NAME_INFO)) = []u8{0} ** (size + windows.MAX_PATH);
1399	};
1400		1225
1401	pub fn deleteDirC(dir_path: [*]const u8) DeleteDirError!void {	1226	if (windows.kernel32.GetFileInformationByHandleEx(
1402	switch (builtin.os) {	1227	handle,
1403	Os.windows => {	1228	windows.FileNameInfo,
1404	const dir_path_w = try windows_util.cStrToPrefixedFileW(dir_path);	1229	@ptrCast(*c_void, &name_info_bytes),
1405	return deleteDirW(&dir_path_w);	1230	name_info_bytes.len,
1406	},	1231	) == 0) {
1407	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {	1232	return false;
1408	const err = posix.getErrno(posix.rmdir(dir_path));
1409	switch (err) {
1410	0 => return,
1411	posix.EACCES => return error.AccessDenied,
1412	posix.EPERM => return error.AccessDenied,
1413	posix.EBUSY => return error.FileBusy,
1414	posix.EFAULT => unreachable,
1415	posix.EINVAL => unreachable,
1416	posix.ELOOP => return error.SymLinkLoop,
1417	posix.ENAMETOOLONG => return error.NameTooLong,
1418	posix.ENOENT => return error.FileNotFound,
1419	posix.ENOMEM => return error.SystemResources,
1420	posix.ENOTDIR => return error.NotDir,
1421	posix.EEXIST => return error.DirNotEmpty,
1422	posix.ENOTEMPTY => return error.DirNotEmpty,
1423	posix.EROFS => return error.ReadOnlyFileSystem,
1424	else => return unexpectedErrorPosix(err),
1425	}
1426	},
1427	else => @compileError("unimplemented"),
1428	}	1233	}
1429	}
1430		1234
1431	pub fn deleteDirW(dir_path_w: [*]const u16) DeleteDirError!void {	1235	const name_info = @ptrCast(*const windows.FILE_NAME_INFO, &name_info_bytes[0]);
1432	if (windows.RemoveDirectoryW(dir_path_w) == 0) {	1236	const name_bytes = name_info_bytes[size .. size + usize(name_info.FileNameLength)];
1433	const err = windows.GetLastError();	1237	const name_wide = @bytesToSlice(u16, name_bytes);
1434	switch (err) {	1238	return mem.indexOf(u16, name_wide, []u16{ 'm', 's', 'y', 's', '-' }) != null or
1435	windows.ERROR.PATH_NOT_FOUND => return error.FileNotFound,	1239	mem.indexOf(u16, name_wide, []u16{ '-', 'p', 't', 'y' }) != null;
1436	windows.ERROR.DIR_NOT_EMPTY => return error.DirNotEmpty,
1437	else => return unexpectedErrorWindows(err),
1438	}
1439	}
1440	}	1240	}
1441		1241
1442	/// Returns ::error.DirNotEmpty if the directory is not empty.	1242	pub const SocketError = error{
1443	/// To delete a directory recursively, see ::deleteTree	1243	/// Permission to create a socket of the specified type and/or
1444	pub fn deleteDir(dir_path: []const u8) DeleteDirError!void {	1244	/// pro‐tocol is denied.
1445	switch (builtin.os) {	1245	PermissionDenied,
1446	Os.windows => {
1447	const dir_path_w = try windows_util.sliceToPrefixedFileW(dir_path);
1448	return deleteDirW(&dir_path_w);
1449	},
1450	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {
1451	const dir_path_c = try toPosixPath(dir_path);
1452	return deleteDirC(&dir_path_c);
1453	},
1454	else => @compileError("unimplemented"),
1455	}
1456	}
1457
1458	/// Whether ::full_path describes a symlink, file, or directory, this function
1459	/// removes it. If it cannot be removed because it is a non-empty directory,
1460	/// this function recursively removes its entries and then tries again.
1461	const DeleteTreeError = error{
1462	OutOfMemory,
1463	AccessDenied,
1464	FileTooBig,
1465	IsDir,
1466	SymLinkLoop,
1467	ProcessFdQuotaExceeded,
1468	NameTooLong,
1469	SystemFdQuotaExceeded,
1470	NoDevice,
1471	SystemResources,
1472	NoSpaceLeft,
1473	PathAlreadyExists,
1474	ReadOnlyFileSystem,
1475	NotDir,
1476	FileNotFound,
1477	FileSystem,
1478	FileBusy,
1479	DirNotEmpty,
1480	DeviceBusy,
1481
1482	/// On Windows, file paths must be valid Unicode.
1483	InvalidUtf8,
1484
1485	/// On Windows, file paths cannot contain these characters:
1486	/// '/', '*', '?', '"', '<', '>', '\|'
1487	BadPathName,
1488
1489	/// See https://github.com/ziglang/zig/issues/1396
1490	Unexpected,
1491	};
1492
1493	/// TODO determine if we can remove the allocator requirement
1494	pub fn deleteTree(allocator: *Allocator, full_path: []const u8) DeleteTreeError!void {
1495	start_over: while (true) {
1496	var got_access_denied = false;
1497	// First, try deleting the item as a file. This way we don't follow sym links.
1498	if (deleteFile(full_path)) {
1499	return;
1500	} else \|err\| switch (err) {
1501	error.FileNotFound => return,
1502	error.IsDir => {},
1503	error.AccessDenied => got_access_denied = true,
1504
1505	error.InvalidUtf8,
1506	error.SymLinkLoop,
1507	error.NameTooLong,
1508	error.SystemResources,
1509	error.ReadOnlyFileSystem,
1510	error.NotDir,
1511	error.FileSystem,
1512	error.FileBusy,
1513	error.BadPathName,
1514	error.Unexpected,
1515	=> return err,
1516	}
1517	{
1518	var dir = Dir.open(allocator, full_path) catch \|err\| switch (err) {
1519	error.NotDir => {
1520	if (got_access_denied) {
1521	return error.AccessDenied;
1522	}
1523	continue :start_over;
1524	},
1525
1526	error.OutOfMemory,
1527	error.AccessDenied,
1528	error.FileTooBig,
1529	error.IsDir,
1530	error.SymLinkLoop,
1531	error.ProcessFdQuotaExceeded,
1532	error.NameTooLong,
1533	error.SystemFdQuotaExceeded,
1534	error.NoDevice,
1535	error.FileNotFound,
1536	error.SystemResources,
1537	error.NoSpaceLeft,
1538	error.PathAlreadyExists,
1539	error.Unexpected,
1540	error.InvalidUtf8,
1541	error.BadPathName,
1542	error.DeviceBusy,
1543	=> return err,
1544	};
1545	defer dir.close();
1546
1547	var full_entry_buf = ArrayList(u8).init(allocator);
1548	defer full_entry_buf.deinit();
1549
1550	while (try dir.next()) \|entry\| {
1551	try full_entry_buf.resize(full_path.len + entry.name.len + 1);
1552	const full_entry_path = full_entry_buf.toSlice();
1553	mem.copy(u8, full_entry_path, full_path);
1554	full_entry_path[full_path.len] = path.sep;
1555	mem.copy(u8, full_entry_path[full_path.len + 1 ..], entry.name);
1556
1557	try deleteTree(allocator, full_entry_path);
1558	}
1559	}
1560	return deleteDir(full_path);
1561	}
1562	}
1563
1564	pub const Dir = struct {
1565	handle: Handle,
1566	allocator: *Allocator,
1567
1568	pub const Handle = switch (builtin.os) {
1569	Os.macosx, Os.ios, Os.freebsd, Os.netbsd => struct {
1570	fd: i32,
1571	seek: i64,
1572	buf: []u8,
1573	index: usize,
1574	end_index: usize,
1575	},
1576	Os.linux => struct {
1577	fd: i32,
1578	buf: []u8,
1579	index: usize,
1580	end_index: usize,
1581	},
1582	Os.windows => struct {
1583	handle: windows.HANDLE,
1584	find_file_data: windows.WIN32_FIND_DATAW,
1585	first: bool,
1586	name_data: [256]u8,
1587	},
1588	else => @compileError("unimplemented"),
1589	};
1590
1591	pub const Entry = struct {
1592	name: []const u8,
1593	kind: Kind,
1594
1595	pub const Kind = enum {
1596	BlockDevice,
1597	CharacterDevice,
1598	Directory,
1599	NamedPipe,
1600	SymLink,
1601	File,
1602	UnixDomainSocket,
1603	Whiteout,
1604	Unknown,
1605	};
1606	};
1607
1608	pub const OpenError = error{
1609	FileNotFound,
1610	NotDir,
1611	AccessDenied,
1612	FileTooBig,
1613	IsDir,
1614	SymLinkLoop,
1615	ProcessFdQuotaExceeded,
1616	NameTooLong,
1617	SystemFdQuotaExceeded,
1618	NoDevice,
1619	SystemResources,
1620	NoSpaceLeft,
1621	PathAlreadyExists,
1622	OutOfMemory,
1623	InvalidUtf8,
1624	BadPathName,
1625	DeviceBusy,
1626
1627	/// See https://github.com/ziglang/zig/issues/1396
1628	Unexpected,
1629	};
1630
1631	/// TODO remove the allocator requirement from this API
1632	pub fn open(allocator: *Allocator, dir_path: []const u8) OpenError!Dir {
1633	return Dir{
1634	.allocator = allocator,
1635	.handle = switch (builtin.os) {
1636	Os.windows => blk: {
1637	var find_file_data: windows.WIN32_FIND_DATAW = undefined;
1638	const handle = try windows_util.windowsFindFirstFile(dir_path, &find_file_data);
1639	break :blk Handle{
1640	.handle = handle,
1641	.find_file_data = find_file_data, // TODO guaranteed copy elision
1642	.first = true,
1643	.name_data = undefined,
1644	};
1645	},
1646	Os.macosx, Os.ios, Os.freebsd, Os.netbsd => Handle{
1647	.fd = try posixOpen(
1648	dir_path,
1649	posix.O_RDONLY \| posix.O_NONBLOCK \| posix.O_DIRECTORY \| posix.O_CLOEXEC,
1650	0,
1651	),
1652	.seek = 0,
1653	.index = 0,
1654	.end_index = 0,
1655	.buf = []u8{},
1656	},
1657	Os.linux => Handle{
1658	.fd = try posixOpen(
1659	dir_path,
1660	posix.O_RDONLY \| posix.O_DIRECTORY \| posix.O_CLOEXEC,
1661	0,
1662	),
1663	.index = 0,
1664	.end_index = 0,
1665	.buf = []u8{},
1666	},
1667	else => @compileError("unimplemented"),
1668	},
1669	};
1670	}
1671
1672	pub fn close(self: *Dir) void {
1673	switch (builtin.os) {
1674	Os.windows => {
1675	_ = windows.FindClose(self.handle.handle);
1676	},
1677	Os.macosx, Os.ios, Os.linux, Os.freebsd, Os.netbsd => {
1678	self.allocator.free(self.handle.buf);
1679	os.close(self.handle.fd);
1680	},
1681	else => @compileError("unimplemented"),
1682	}
1683	}
1684
1685	/// Memory such as file names referenced in this returned entry becomes invalid
1686	/// with subsequent calls to next, as well as when this `Dir` is deinitialized.
1687	pub fn next(self: *Dir) !?Entry {
1688	switch (builtin.os) {
1689	Os.linux => return self.nextLinux(),
1690	Os.macosx, Os.ios => return self.nextDarwin(),
1691	Os.windows => return self.nextWindows(),
1692	Os.freebsd => return self.nextFreebsd(),
1693	Os.netbsd => return self.nextFreebsd(),
1694	else => @compileError("unimplemented"),
1695	}
1696	}
1697
1698	fn nextDarwin(self: *Dir) !?Entry {
1699	start_over: while (true) {
1700	if (self.handle.index >= self.handle.end_index) {
1701	if (self.handle.buf.len == 0) {
1702	self.handle.buf = try self.allocator.alloc(u8, page_size);
1703	}
1704
1705	while (true) {
1706	const result = posix.getdirentries64(self.handle.fd, self.handle.buf.ptr, self.handle.buf.len, &self.handle.seek);
1707	const err = posix.getErrno(result);
1708	if (err > 0) {
1709	switch (err) {
1710	posix.EBADF, posix.EFAULT, posix.ENOTDIR => unreachable,
1711	posix.EINVAL => {
1712	self.handle.buf = try self.allocator.realloc(self.handle.buf, self.handle.buf.len * 2);
1713	continue;
1714	},
1715	else => return unexpectedErrorPosix(err),
1716	}
1717	}
1718	if (result == 0) return null;
1719	self.handle.index = 0;
1720	self.handle.end_index = result;
1721	break;
1722	}
1723	}
1724	const darwin_entry = @ptrCast(*align(1) posix.dirent, &self.handle.buf[self.handle.index]);
1725	const next_index = self.handle.index + darwin_entry.d_reclen;
1726	self.handle.index = next_index;
1727
1728	const name = @ptrCast([*]u8, &darwin_entry.d_name)[0..darwin_entry.d_namlen];
1729
1730	if (mem.eql(u8, name, ".") or mem.eql(u8, name, "..")) {
1731	continue :start_over;
1732	}
1733
1734	const entry_kind = switch (darwin_entry.d_type) {
1735	posix.DT_BLK => Entry.Kind.BlockDevice,
1736	posix.DT_CHR => Entry.Kind.CharacterDevice,
1737	posix.DT_DIR => Entry.Kind.Directory,
1738	posix.DT_FIFO => Entry.Kind.NamedPipe,
1739	posix.DT_LNK => Entry.Kind.SymLink,
1740	posix.DT_REG => Entry.Kind.File,
1741	posix.DT_SOCK => Entry.Kind.UnixDomainSocket,
1742	posix.DT_WHT => Entry.Kind.Whiteout,
1743	else => Entry.Kind.Unknown,
1744	};
1745	return Entry{
1746	.name = name,
1747	.kind = entry_kind,
1748	};
1749	}
1750	}
1751
1752	fn nextWindows(self: *Dir) !?Entry {
1753	while (true) {
1754	if (self.handle.first) {
1755	self.handle.first = false;
1756	} else {
1757	if (!try windows_util.windowsFindNextFile(self.handle.handle, &self.handle.find_file_data))
1758	return null;
1759	}
1760	const name_utf16le = mem.toSlice(u16, self.handle.find_file_data.cFileName[0..].ptr);
1761	if (mem.eql(u16, name_utf16le, []u16{'.'}) or mem.eql(u16, name_utf16le, []u16{ '.', '.' }))
1762	continue;
1763	// Trust that Windows gives us valid UTF-16LE
1764	const name_utf8_len = std.unicode.utf16leToUtf8(self.handle.name_data[0..], name_utf16le) catch unreachable;
1765	const name_utf8 = self.handle.name_data[0..name_utf8_len];
1766	const kind = blk: {
1767	const attrs = self.handle.find_file_data.dwFileAttributes;
1768	if (attrs & windows.FILE_ATTRIBUTE_DIRECTORY != 0) break :blk Entry.Kind.Directory;
1769	if (attrs & windows.FILE_ATTRIBUTE_REPARSE_POINT != 0) break :blk Entry.Kind.SymLink;
1770	if (attrs & windows.FILE_ATTRIBUTE_NORMAL != 0) break :blk Entry.Kind.File;
1771	break :blk Entry.Kind.Unknown;
1772	};
1773	return Entry{
1774	.name = name_utf8,
1775	.kind = kind,
1776	};
1777	}
1778	}
1779
1780	fn nextLinux(self: *Dir) !?Entry {
1781	start_over: while (true) {
1782	if (self.handle.index >= self.handle.end_index) {
1783	if (self.handle.buf.len == 0) {
1784	self.handle.buf = try self.allocator.alloc(u8, page_size);
1785	}
1786
1787	while (true) {
1788	const result = posix.getdents64(self.handle.fd, self.handle.buf.ptr, self.handle.buf.len);
1789	const err = posix.getErrno(result);
1790	if (err > 0) {
1791	switch (err) {
1792	posix.EBADF, posix.EFAULT, posix.ENOTDIR => unreachable,
1793	posix.EINVAL => {
1794	self.handle.buf = try self.allocator.realloc(self.handle.buf, self.handle.buf.len * 2);
1795	continue;
1796	},
1797	else => return unexpectedErrorPosix(err),
1798	}
1799	}
1800	if (result == 0) return null;
1801	self.handle.index = 0;
1802	self.handle.end_index = result;
1803	break;
1804	}
1805	}
1806	const linux_entry = @ptrCast(*align(1) posix.dirent64, &self.handle.buf[self.handle.index]);
1807	const next_index = self.handle.index + linux_entry.d_reclen;
1808	self.handle.index = next_index;
1809
1810	const name = cstr.toSlice(@ptrCast([*]u8, &linux_entry.d_name));
1811
1812	// skip . and .. entries
1813	if (mem.eql(u8, name, ".") or mem.eql(u8, name, "..")) {
1814	continue :start_over;
1815	}
1816
1817	const entry_kind = switch (linux_entry.d_type) {
1818	posix.DT_BLK => Entry.Kind.BlockDevice,
1819	posix.DT_CHR => Entry.Kind.CharacterDevice,
1820	posix.DT_DIR => Entry.Kind.Directory,
1821	posix.DT_FIFO => Entry.Kind.NamedPipe,
1822	posix.DT_LNK => Entry.Kind.SymLink,
1823	posix.DT_REG => Entry.Kind.File,
1824	posix.DT_SOCK => Entry.Kind.UnixDomainSocket,
1825	else => Entry.Kind.Unknown,
1826	};
1827	return Entry{
1828	.name = name,
1829	.kind = entry_kind,
1830	};
1831	}
1832	}
1833
1834	fn nextFreebsd(self: *Dir) !?Entry {
1835	start_over: while (true) {
1836	if (self.handle.index >= self.handle.end_index) {
1837	if (self.handle.buf.len == 0) {
1838	self.handle.buf = try self.allocator.alloc(u8, page_size);
1839	}
1840
1841	while (true) {
1842	const result = posix.getdirentries(self.handle.fd, self.handle.buf.ptr, self.handle.buf.len, &self.handle.seek);
1843	const err = posix.getErrno(result);
1844	if (err > 0) {
1845	switch (err) {
1846	posix.EBADF, posix.EFAULT, posix.ENOTDIR => unreachable,
1847	posix.EINVAL => {
1848	self.handle.buf = try self.allocator.realloc(self.handle.buf, self.handle.buf.len * 2);
1849	continue;
1850	},
1851	else => return unexpectedErrorPosix(err),
1852	}
1853	}
1854	if (result == 0) return null;
1855	self.handle.index = 0;
1856	self.handle.end_index = result;
1857	break;
1858	}
1859	}
1860	const freebsd_entry = @ptrCast(*align(1) posix.dirent, &self.handle.buf[self.handle.index]);
1861	const next_index = self.handle.index + freebsd_entry.d_reclen;
1862	self.handle.index = next_index;
1863
1864	const name = @ptrCast([*]u8, &freebsd_entry.d_name)[0..freebsd_entry.d_namlen];
1865
1866	if (mem.eql(u8, name, ".") or mem.eql(u8, name, "..")) {
1867	continue :start_over;
1868	}
1869
1870	const entry_kind = switch (freebsd_entry.d_type) {
1871	posix.DT_BLK => Entry.Kind.BlockDevice,
1872	posix.DT_CHR => Entry.Kind.CharacterDevice,
1873	posix.DT_DIR => Entry.Kind.Directory,
1874	posix.DT_FIFO => Entry.Kind.NamedPipe,
1875	posix.DT_LNK => Entry.Kind.SymLink,
1876	posix.DT_REG => Entry.Kind.File,
1877	posix.DT_SOCK => Entry.Kind.UnixDomainSocket,
1878	posix.DT_WHT => Entry.Kind.Whiteout,
1879	else => Entry.Kind.Unknown,
1880	};
1881	return Entry{
1882	.name = name,
1883	.kind = entry_kind,
1884	};
1885	}
1886	}
1887	};
1888
1889	pub fn changeCurDir(dir_path: []const u8) !void {
1890	const dir_path_c = try toPosixPath(dir_path);
1891	const err = posix.getErrno(posix.chdir(&dir_path_c));
1892	switch (err) {
1893	0 => return,
1894	posix.EACCES => return error.AccessDenied,
1895	posix.EFAULT => unreachable,
1896	posix.EIO => return error.FileSystem,
1897	posix.ELOOP => return error.SymLinkLoop,
1898	posix.ENAMETOOLONG => return error.NameTooLong,
1899	posix.ENOENT => return error.FileNotFound,
1900	posix.ENOMEM => return error.SystemResources,
1901	posix.ENOTDIR => return error.NotDir,
1902	else => return unexpectedErrorPosix(err),
1903	}
1904	}
1905
1906	/// Read value of a symbolic link.
1907	/// The return value is a slice of out_buffer.
1908	pub fn readLinkC(out_buffer: [posix.PATH_MAX]u8, pathname: []const u8) ![]u8 {
1909	const rc = posix.readlink(pathname, out_buffer, out_buffer.len);
1910	const err = posix.getErrno(rc);
1911	switch (err) {
1912	0 => return out_buffer[0..rc],
1913	posix.EACCES => return error.AccessDenied,
1914	posix.EFAULT => unreachable,
1915	posix.EINVAL => unreachable,
1916	posix.EIO => return error.FileSystem,
1917	posix.ELOOP => return error.SymLinkLoop,
1918	posix.ENAMETOOLONG => unreachable, // out_buffer is at least PATH_MAX
1919	posix.ENOENT => return error.FileNotFound,
1920	posix.ENOMEM => return error.SystemResources,
1921	posix.ENOTDIR => return error.NotDir,
1922	else => return unexpectedErrorPosix(err),
1923	}
1924	}
1925
1926	/// Read value of a symbolic link.
1927	/// The return value is a slice of out_buffer.
1928	pub fn readLink(out_buffer: *[posix.PATH_MAX]u8, file_path: []const u8) ![]u8 {
1929	const file_path_c = try toPosixPath(file_path);
1930	return readLinkC(out_buffer, &file_path_c);
1931	}
1932
1933	pub fn posix_setuid(uid: u32) !void {
1934	const err = posix.getErrno(posix.setuid(uid));
1935	if (err == 0) return;
1936	return switch (err) {
1937	posix.EAGAIN => error.ResourceLimitReached,
1938	posix.EINVAL => error.InvalidUserId,
1939	posix.EPERM => error.PermissionDenied,
1940	else => unexpectedErrorPosix(err),
1941	};
1942	}
1943
1944	pub fn posix_setreuid(ruid: u32, euid: u32) !void {
1945	const err = posix.getErrno(posix.setreuid(ruid, euid));
1946	if (err == 0) return;
1947	return switch (err) {
1948	posix.EAGAIN => error.ResourceLimitReached,
1949	posix.EINVAL => error.InvalidUserId,
1950	posix.EPERM => error.PermissionDenied,
1951	else => unexpectedErrorPosix(err),
1952	};
1953	}
1954
1955	pub fn posix_setgid(gid: u32) !void {
1956	const err = posix.getErrno(posix.setgid(gid));
1957	if (err == 0) return;
1958	return switch (err) {
1959	posix.EAGAIN => error.ResourceLimitReached,
1960	posix.EINVAL => error.InvalidUserId,
1961	posix.EPERM => error.PermissionDenied,
1962	else => unexpectedErrorPosix(err),
1963	};
1964	}
1965
1966	pub fn posix_setregid(rgid: u32, egid: u32) !void {
1967	const err = posix.getErrno(posix.setregid(rgid, egid));
1968	if (err == 0) return;
1969	return switch (err) {
1970	posix.EAGAIN => error.ResourceLimitReached,
1971	posix.EINVAL => error.InvalidUserId,
1972	posix.EPERM => error.PermissionDenied,
1973	else => unexpectedErrorPosix(err),
1974	};
1975	}
1976
1977	pub const WindowsGetStdHandleErrs = error{
1978	NoStdHandles,
1979
1980	/// See https://github.com/ziglang/zig/issues/1396
1981	Unexpected,
1982	};
1983
1984	pub fn windowsGetStdHandle(handle_id: windows.DWORD) WindowsGetStdHandleErrs!windows.HANDLE {
1985	if (windows.GetStdHandle(handle_id)) \|handle\| {
1986	if (handle == windows.INVALID_HANDLE_VALUE) {
1987	const err = windows.GetLastError();
1988	return switch (err) {
1989	else => os.unexpectedErrorWindows(err),
1990	};
1991	}
1992	return handle;
1993	} else {
1994	return error.NoStdHandles;
1995	}
1996	}
1997
1998	pub const ArgIteratorPosix = struct {
1999	index: usize,
2000	count: usize,
2001
2002	pub fn init() ArgIteratorPosix {
2003	return ArgIteratorPosix{
2004	.index = 0,
2005	.count = raw.len,
2006	};
2007	}
2008
2009	pub fn next(self: *ArgIteratorPosix) ?[]const u8 {
2010	if (self.index == self.count) return null;
2011
2012	const s = raw[self.index];
2013	self.index += 1;
2014	return cstr.toSlice(s);
2015	}
2016
2017	pub fn skip(self: *ArgIteratorPosix) bool {
2018	if (self.index == self.count) return false;
2019
2020	self.index += 1;
2021	return true;
2022	}
2023
2024	/// This is marked as public but actually it's only meant to be used
2025	/// internally by zig's startup code.
2026	pub var raw: [][*]u8 = undefined;
2027	};
2028
2029	pub const ArgIteratorWindows = struct {
2030	index: usize,
2031	cmd_line: [*]const u8,
2032	in_quote: bool,
2033	quote_count: usize,
2034	seen_quote_count: usize,
2035
2036	pub const NextError = error{OutOfMemory};
2037
2038	pub fn init() ArgIteratorWindows {
2039	return initWithCmdLine(windows.GetCommandLineA());
2040	}
2041
2042	pub fn initWithCmdLine(cmd_line: [*]const u8) ArgIteratorWindows {
2043	return ArgIteratorWindows{
2044	.index = 0,
2045	.cmd_line = cmd_line,
2046	.in_quote = false,
2047	.quote_count = countQuotes(cmd_line),
2048	.seen_quote_count = 0,
2049	};
2050	}
2051
2052	/// You must free the returned memory when done.
2053	pub fn next(self: ArgIteratorWindows, allocator: Allocator) ?(NextError![]u8) {
2054	// march forward over whitespace
2055	while (true) : (self.index += 1) {
2056	const byte = self.cmd_line[self.index];
2057	switch (byte) {
2058	0 => return null,
2059	' ', '\t' => continue,
2060	else => break,
2061	}
2062	}
2063
2064	return self.internalNext(allocator);
2065	}
2066
2067	pub fn skip(self: *ArgIteratorWindows) bool {
2068	// march forward over whitespace
2069	while (true) : (self.index += 1) {
2070	const byte = self.cmd_line[self.index];
2071	switch (byte) {
2072	0 => return false,
2073	' ', '\t' => continue,
2074	else => break,
2075	}
2076	}
2077
2078	var backslash_count: usize = 0;
2079	while (true) : (self.index += 1) {
2080	const byte = self.cmd_line[self.index];
2081	switch (byte) {
2082	0 => return true,
2083	'"' => {
2084	const quote_is_real = backslash_count % 2 == 0;
2085	if (quote_is_real) {
2086	self.seen_quote_count += 1;
2087	}
2088	},
2089	'\\' => {
2090	backslash_count += 1;
2091	},
2092	' ', '\t' => {
2093	if (self.seen_quote_count % 2 == 0 or self.seen_quote_count == self.quote_count) {
2094	return true;
2095	}
2096	backslash_count = 0;
2097	},
2098	else => {
2099	backslash_count = 0;
2100	continue;
2101	},
2102	}
2103	}
2104	}
2105
2106	fn internalNext(self: ArgIteratorWindows, allocator: Allocator) NextError![]u8 {
2107	var buf = try Buffer.initSize(allocator, 0);
2108	defer buf.deinit();
2109
2110	var backslash_count: usize = 0;
2111	while (true) : (self.index += 1) {
2112	const byte = self.cmd_line[self.index];
2113	switch (byte) {
2114	0 => return buf.toOwnedSlice(),
2115	'"' => {
2116	const quote_is_real = backslash_count % 2 == 0;
2117	try self.emitBackslashes(&buf, backslash_count / 2);
2118	backslash_count = 0;
2119
2120	if (quote_is_real) {
2121	self.seen_quote_count += 1;
2122	if (self.seen_quote_count == self.quote_count and self.seen_quote_count % 2 == 1) {
2123	try buf.appendByte('"');
2124	}
2125	} else {
2126	try buf.appendByte('"');
2127	}
2128	},
2129	'\\' => {
2130	backslash_count += 1;
2131	},
2132	' ', '\t' => {
2133	try self.emitBackslashes(&buf, backslash_count);
2134	backslash_count = 0;
2135	if (self.seen_quote_count % 2 == 1 and self.seen_quote_count != self.quote_count) {
2136	try buf.appendByte(byte);
2137	} else {
2138	return buf.toOwnedSlice();
2139	}
2140	},
2141	else => {
2142	try self.emitBackslashes(&buf, backslash_count);
2143	backslash_count = 0;
2144	try buf.appendByte(byte);
2145	},
2146	}
2147	}
2148	}
2149
2150	fn emitBackslashes(self: ArgIteratorWindows, buf: Buffer, emit_count: usize) !void {
2151	var i: usize = 0;
2152	while (i < emit_count) : (i += 1) {
2153	try buf.appendByte('\\');
2154	}
2155	}
2156
2157	fn countQuotes(cmd_line: [*]const u8) usize {
2158	var result: usize = 0;
2159	var backslash_count: usize = 0;
2160	var index: usize = 0;
2161	while (true) : (index += 1) {
2162	const byte = cmd_line[index];
2163	switch (byte) {
2164	0 => return result,
2165	'\\' => backslash_count += 1,
2166	'"' => {
2167	result += 1 - (backslash_count % 2);
2168	backslash_count = 0;
2169	},
2170	else => {
2171	backslash_count = 0;
2172	},
2173	}
2174	}
2175	}
2176	};
2177
2178	pub const ArgIterator = struct {
2179	const InnerType = if (builtin.os == Os.windows) ArgIteratorWindows else ArgIteratorPosix;
2180
2181	inner: InnerType,
2182
2183	pub fn init() ArgIterator {
2184	if (builtin.os == Os.wasi) {
2185	// TODO: Figure out a compatible interface accomodating WASI
2186	@compileError("ArgIterator is not yet supported in WASI. Use argsAlloc and argsFree instead.");
2187	}
2188
2189	return ArgIterator{ .inner = InnerType.init() };
2190	}
2191
2192	pub const NextError = ArgIteratorWindows.NextError;
2193
2194	/// You must free the returned memory when done.
2195	pub fn next(self: ArgIterator, allocator: Allocator) ?(NextError![]u8) {
2196	if (builtin.os == Os.windows) {
2197	return self.inner.next(allocator);
2198	} else {
2199	return mem.dupe(allocator, u8, self.inner.next() orelse return null);
2200	}
2201	}
2202
2203	/// If you only are targeting posix you can call this and not need an allocator.
2204	pub fn nextPosix(self: *ArgIterator) ?[]const u8 {
2205	return self.inner.next();
2206	}
2207
2208	/// Parse past 1 argument without capturing it.
2209	/// Returns `true` if skipped an arg, `false` if we are at the end.
2210	pub fn skip(self: *ArgIterator) bool {
2211	return self.inner.skip();
2212	}
2213	};
2214
2215	pub fn args() ArgIterator {
2216	return ArgIterator.init();
2217	}
2218
2219	/// Caller must call argsFree on result.
2220	pub fn argsAlloc(allocator: *mem.Allocator) ![]const []u8 {
2221	if (builtin.os == Os.wasi) {
2222	var count: usize = undefined;
2223	var buf_size: usize = undefined;
2224
2225	const args_sizes_get_ret = os.wasi.args_sizes_get(&count, &buf_size);
2226	if (args_sizes_get_ret != os.wasi.ESUCCESS) {
2227	return unexpectedErrorPosix(args_sizes_get_ret);
2228	}
2229
2230	var argv = try allocator.alloc([*]u8, count);
2231	defer allocator.free(argv);
2232
2233	var argv_buf = try allocator.alloc(u8, buf_size);
2234	const args_get_ret = os.wasi.args_get(argv.ptr, argv_buf.ptr);
2235	if (args_get_ret != os.wasi.ESUCCESS) {
2236	return unexpectedErrorPosix(args_get_ret);
2237	}
2238
2239	var result_slice = try allocator.alloc([]u8, count);
2240
2241	var i: usize = 0;
2242	while (i < count) : (i += 1) {
2243	result_slice[i] = mem.toSlice(u8, argv[i]);
2244	}
2245
2246	return result_slice;
2247	}
2248
2249	// TODO refactor to only make 1 allocation.
2250	var it = args();
2251	var contents = try Buffer.initSize(allocator, 0);
2252	defer contents.deinit();
2253
2254	var slice_list = ArrayList(usize).init(allocator);
2255	defer slice_list.deinit();
2256
2257	while (it.next(allocator)) \|arg_or_err\| {
2258	const arg = try arg_or_err;
2259	defer allocator.free(arg);
2260	try contents.append(arg);
2261	try slice_list.append(arg.len);
2262	}
2263
2264	const contents_slice = contents.toSliceConst();
2265	const slice_sizes = slice_list.toSliceConst();
2266	const slice_list_bytes = try math.mul(usize, @sizeOf([]u8), slice_sizes.len);
2267	const total_bytes = try math.add(usize, slice_list_bytes, contents_slice.len);
2268	const buf = try allocator.alignedAlloc(u8, @alignOf([]u8), total_bytes);
2269	errdefer allocator.free(buf);
2270
2271	const result_slice_list = @bytesToSlice([]u8, buf[0..slice_list_bytes]);
2272	const result_contents = buf[slice_list_bytes..];
2273	mem.copy(u8, result_contents, contents_slice);
2274
2275	var contents_index: usize = 0;
2276	for (slice_sizes) \|len, i\| {
2277	const new_index = contents_index + len;
2278	result_slice_list[i] = result_contents[contents_index..new_index];
2279	contents_index = new_index;
2280	}
2281
2282	return result_slice_list;
2283	}
2284
2285	pub fn argsFree(allocator: *mem.Allocator, args_alloc: []const []u8) void {
2286	if (builtin.os == Os.wasi) {
2287	const last_item = args_alloc[args_alloc.len - 1];
2288	const last_byte_addr = @ptrToInt(last_item.ptr) + last_item.len + 1; // null terminated
2289	const first_item_ptr = args_alloc[0].ptr;
2290	const len = last_byte_addr - @ptrToInt(first_item_ptr);
2291	allocator.free(first_item_ptr[0..len]);
2292
2293	return allocator.free(args_alloc);
2294	}
2295
2296	var total_bytes: usize = 0;
2297	for (args_alloc) \|arg\| {
2298	total_bytes += @sizeOf([]u8) + arg.len;
2299	}
2300	const unaligned_allocated_buf = @ptrCast([*]const u8, args_alloc.ptr)[0..total_bytes];
2301	const aligned_allocated_buf = @alignCast(@alignOf([]u8), unaligned_allocated_buf);
2302	return allocator.free(aligned_allocated_buf);
2303	}
2304
2305	test "windows arg parsing" {
2306	testWindowsCmdLine(c"a b\tc d", [][]const u8{ "a", "b", "c", "d" });
2307	testWindowsCmdLine(c"\"abc\" d e", [][]const u8{ "abc", "d", "e" });
2308	testWindowsCmdLine(c"a\\\\\\b d\"e f\"g h", [][]const u8{ "a\\\\\\b", "de fg", "h" });
2309	testWindowsCmdLine(c"a\\\\\\\"b c d", [][]const u8{ "a\\\"b", "c", "d" });
2310	testWindowsCmdLine(c"a\\\\\\\\\"b c\" d e", [][]const u8{ "a\\\\b c", "d", "e" });
2311	testWindowsCmdLine(c"a b\tc \"d f", [][]const u8{ "a", "b", "c", "\"d", "f" });
2312
2313	testWindowsCmdLine(c"\".\\..\\zig-cache\\build\" \"bin\\zig.exe\" \".\\..\" \".\\..\\zig-cache\" \"--help\"", [][]const u8{
2314	".\\..\\zig-cache\\build",
2315	"bin\\zig.exe",
2316	".\\..",
2317	".\\..\\zig-cache",
2318	"--help",
2319	});
2320	}
2321
2322	fn testWindowsCmdLine(input_cmd_line: [*]const u8, expected_args: []const []const u8) void {
2323	var it = ArgIteratorWindows.initWithCmdLine(input_cmd_line);
2324	for (expected_args) \|expected_arg\| {
2325	const arg = it.next(debug.global_allocator).? catch unreachable;
2326	testing.expectEqualSlices(u8, expected_arg, arg);
2327	}
2328	testing.expect(it.next(debug.global_allocator) == null);
2329	}
2330
2331	// TODO make this a build variable that you can set
2332	const unexpected_error_tracing = false;
2333	const UnexpectedError = error{
2334	/// The Operating System returned an undocumented error code.
2335	Unexpected,
2336	};
2337
2338	/// Call this when you made a syscall or something that sets errno
2339	/// and you get an unexpected error.
2340	pub fn unexpectedErrorPosix(errno: usize) UnexpectedError {
2341	if (unexpected_error_tracing) {
2342	debug.warn("unexpected errno: {}\n", errno);
2343	debug.dumpCurrentStackTrace(null);
2344	}
2345	return error.Unexpected;
2346	}
2347
2348	/// Call this when you made a windows DLL call or something that does SetLastError
2349	/// and you get an unexpected error.
2350	pub fn unexpectedErrorWindows(err: windows.DWORD) UnexpectedError {
2351	if (unexpected_error_tracing) {
2352	debug.warn("unexpected GetLastError(): {}\n", err);
2353	@breakpoint();
2354	debug.dumpCurrentStackTrace(null);
2355	}
2356	return error.Unexpected;
2357	}
2358
2359	pub fn openSelfExe() !os.File {
2360	switch (builtin.os) {
2361	Os.linux => return os.File.openReadC(c"/proc/self/exe"),
2362	Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {
2363	var buf: [MAX_PATH_BYTES]u8 = undefined;
2364	const self_exe_path = try selfExePath(&buf);
2365	buf[self_exe_path.len] = 0;
2366	return os.File.openReadC(self_exe_path.ptr);
2367	},
2368	Os.windows => {
2369	var buf: [windows_util.PATH_MAX_WIDE]u16 = undefined;
2370	const wide_slice = try selfExePathW(&buf);
2371	return os.File.openReadW(wide_slice.ptr);
2372	},
2373	else => @compileError("Unsupported OS"),
2374	}
2375	}
2376
2377	test "openSelfExe" {
2378	switch (builtin.os) {
2379	Os.linux, Os.macosx, Os.ios, Os.windows, Os.freebsd => (try openSelfExe()).close(),
2380	else => return error.SkipZigTest, // Unsupported OS.
2381	}
2382	}
2383
2384	pub fn selfExePathW(out_buffer: *[windows_util.PATH_MAX_WIDE]u16) ![]u16 {
2385	const casted_len = @intCast(windows.DWORD, out_buffer.len); // TODO shouldn't need this cast
2386	const rc = windows.GetModuleFileNameW(null, out_buffer, casted_len);
2387	assert(rc <= out_buffer.len);
2388	if (rc == 0) {
2389	const err = windows.GetLastError();
2390	switch (err) {
2391	else => return unexpectedErrorWindows(err),
2392	}
2393	}
2394	return out_buffer[0..rc];
2395	}
2396
2397	/// Get the path to the current executable.
2398	/// If you only need the directory, use selfExeDirPath.
2399	/// If you only want an open file handle, use openSelfExe.
2400	/// This function may return an error if the current executable
2401	/// was deleted after spawning.
2402	/// Returned value is a slice of out_buffer.
2403	///
2404	/// On Linux, depends on procfs being mounted. If the currently executing binary has
2405	/// been deleted, the file path looks something like `/a/b/c/exe (deleted)`.
2406	/// TODO make the return type of this a null terminated pointer
2407	pub fn selfExePath(out_buffer: *[MAX_PATH_BYTES]u8) ![]u8 {
2408	switch (builtin.os) {
2409	Os.linux => return readLink(out_buffer, "/proc/self/exe"),
2410	Os.freebsd => {
2411	var mib = [4]c_int{ posix.CTL_KERN, posix.KERN_PROC, posix.KERN_PROC_PATHNAME, -1 };
2412	var out_len: usize = out_buffer.len;
2413	const err = posix.getErrno(posix.sysctl(&mib, 4, out_buffer, &out_len, null, 0));
2414
2415	if (err == 0) return mem.toSlice(u8, out_buffer);
2416
2417	return switch (err) {
2418	posix.EFAULT => error.BadAdress,
2419	posix.EPERM => error.PermissionDenied,
2420	else => unexpectedErrorPosix(err),
2421	};
2422	},
2423	Os.netbsd => {
2424	var mib = [4]c_int{ posix.CTL_KERN, posix.KERN_PROC_ARGS, -1, posix.KERN_PROC_PATHNAME };
2425	var out_len: usize = out_buffer.len;
2426	const err = posix.getErrno(posix.sysctl(&mib, 4, out_buffer, &out_len, null, 0));
2427
2428	if (err == 0) return mem.toSlice(u8, out_buffer);
2429
2430	return switch (err) {
2431	posix.EFAULT => error.BadAdress,
2432	posix.EPERM => error.PermissionDenied,
2433	else => unexpectedErrorPosix(err),
2434	};
2435	},
2436	Os.windows => {
2437	var utf16le_buf: [windows_util.PATH_MAX_WIDE]u16 = undefined;
2438	const utf16le_slice = try selfExePathW(&utf16le_buf);
2439	// Trust that Windows gives us valid UTF-16LE.
2440	const end_index = std.unicode.utf16leToUtf8(out_buffer, utf16le_slice) catch unreachable;
2441	return out_buffer[0..end_index];
2442	},
2443	Os.macosx, Os.ios => {
2444	var u32_len: u32 = @intCast(u32, out_buffer.len); // TODO shouldn't need this cast
2445	const rc = c._NSGetExecutablePath(out_buffer, &u32_len);
2446	if (rc != 0) return error.NameTooLong;
2447	return mem.toSlice(u8, out_buffer);
2448	},
2449	else => @compileError("Unsupported OS"),
2450	}
2451	}
2452
2453	/// `selfExeDirPath` except allocates the result on the heap.
2454	/// Caller owns returned memory.
2455	pub fn selfExeDirPathAlloc(allocator: *Allocator) ![]u8 {
2456	var buf: [MAX_PATH_BYTES]u8 = undefined;
2457	return mem.dupe(allocator, u8, try selfExeDirPath(&buf));
2458	}
2459
2460	/// Get the directory path that contains the current executable.
2461	/// Returned value is a slice of out_buffer.
2462	pub fn selfExeDirPath(out_buffer: *[MAX_PATH_BYTES]u8) ![]const u8 {
2463	switch (builtin.os) {
2464	Os.linux => {
2465	// If the currently executing binary has been deleted,
2466	// the file path looks something like `/a/b/c/exe (deleted)`
2467	// This path cannot be opened, but it's valid for determining the directory
2468	// the executable was in when it was run.
2469	const full_exe_path = try readLinkC(out_buffer, c"/proc/self/exe");
2470	// Assume that /proc/self/exe has an absolute path, and therefore dirname
2471	// will not return null.
2472	return path.dirname(full_exe_path).?;
2473	},
2474	Os.windows, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {
2475	const self_exe_path = try selfExePath(out_buffer);
2476	// Assume that the OS APIs return absolute paths, and therefore dirname
2477	// will not return null.
2478	return path.dirname(self_exe_path).?;
2479	},
2480	else => @compileError("Unsupported OS"),
2481	}
2482	}
2483
2484	pub fn isTty(handle: FileHandle) bool {
2485	if (is_windows) {
2486	return windows_util.windowsIsTty(handle);
2487	} else {
2488	if (builtin.link_libc) {
2489	return c.isatty(handle) != 0;
2490	} else {
2491	return posix.isatty(handle);
2492	}
2493	}
2494	}
2495
2496	pub fn supportsAnsiEscapeCodes(handle: FileHandle) bool {
2497	if (is_windows) {
2498	return windows_util.windowsIsCygwinPty(handle);
2499	} else {
2500	if (builtin.link_libc) {
2501	return c.isatty(handle) != 0;
2502	} else {
2503	return posix.isatty(handle);
2504	}
2505	}
2506	}
2507
2508	pub const PosixSocketError = error{
2509	/// Permission to create a socket of the specified type and/or
2510	/// pro‐tocol is denied.
2511	PermissionDenied,
2512		1246
2513	/// The implementation does not support the specified address family.	1247	/// The implementation does not support the specified address family.
2514	AddressFamilyNotSupported,	1248	AddressFamilyNotSupported,
...	@@ -2528,25 +1262,26 @@ pub const PosixSocketError = error{	...	@@ -2528,25 +1262,26 @@ pub const PosixSocketError = error{
2528		1262
2529	/// The protocol type or the specified protocol is not supported within this domain.	1263	/// The protocol type or the specified protocol is not supported within this domain.
2530	ProtocolNotSupported,	1264	ProtocolNotSupported,
		1265
		1266	Unexpected,
2531	};	1267	};
2532		1268
2533	pub fn posixSocket(domain: u32, socket_type: u32, protocol: u32) !i32 {	1269	pub fn socket(domain: u32, socket_type: u32, protocol: u32) SocketError!i32 {
2534	const rc = posix.socket(domain, socket_type, protocol);	1270	const rc = system.socket(domain, socket_type, protocol);
2535	const err = posix.getErrno(rc);	1271	switch (errno(rc)) {
2536	switch (err) {
2537	0 => return @intCast(i32, rc),	1272	0 => return @intCast(i32, rc),
2538	posix.EACCES => return PosixSocketError.PermissionDenied,	1273	EACCES => return error.PermissionDenied,
2539	posix.EAFNOSUPPORT => return PosixSocketError.AddressFamilyNotSupported,	1274	EAFNOSUPPORT => return error.AddressFamilyNotSupported,
2540	posix.EINVAL => return PosixSocketError.ProtocolFamilyNotAvailable,	1275	EINVAL => return error.ProtocolFamilyNotAvailable,
2541	posix.EMFILE => return PosixSocketError.ProcessFdQuotaExceeded,	1276	EMFILE => return error.ProcessFdQuotaExceeded,
2542	posix.ENFILE => return PosixSocketError.SystemFdQuotaExceeded,	1277	ENFILE => return error.SystemFdQuotaExceeded,
2543	posix.ENOBUFS, posix.ENOMEM => return PosixSocketError.SystemResources,	1278	ENOBUFS, ENOMEM => return error.SystemResources,
2544	posix.EPROTONOSUPPORT => return PosixSocketError.ProtocolNotSupported,	1279	EPROTONOSUPPORT => return error.ProtocolNotSupported,
2545	else => return unexpectedErrorPosix(err),	1280	else => \|err\| return unexpectedErrno(err),
2546	}	1281	}
2547	}	1282	}
2548		1283
2549	pub const PosixBindError = error{	1284	pub const BindError = error{
2550	/// The address is protected, and the user is not the superuser.	1285	/// The address is protected, and the user is not the superuser.
2551	/// For UNIX domain sockets: Search permission is denied on a component	1286	/// For UNIX domain sockets: Search permission is denied on a component
2552	/// of the path prefix.	1287	/// of the path prefix.
...	@@ -2580,34 +1315,32 @@ pub const PosixBindError = error{	...	@@ -2580,34 +1315,32 @@ pub const PosixBindError = error{
2580	/// The socket inode would reside on a read-only filesystem.	1315	/// The socket inode would reside on a read-only filesystem.
2581	ReadOnlyFileSystem,	1316	ReadOnlyFileSystem,
2582		1317
2583	/// See https://github.com/ziglang/zig/issues/1396
2584	Unexpected,	1318	Unexpected,
2585	};	1319	};
2586		1320
2587	/// addr is `&const T` where T is one of the sockaddr	1321	/// addr is `*const T` where T is one of the sockaddr
2588	pub fn posixBind(fd: i32, addr: *const posix.sockaddr) PosixBindError!void {	1322	pub fn bind(fd: i32, addr: *const sockaddr) BindError!void {
2589	const rc = posix.bind(fd, addr, @sizeOf(posix.sockaddr));	1323	const rc = system.bind(fd, addr, @sizeOf(sockaddr));
2590	const err = posix.getErrno(rc);	1324	switch (errno(rc)) {
2591	switch (err) {
2592	0 => return,	1325	0 => return,
2593	posix.EACCES => return PosixBindError.AccessDenied,	1326	EACCES => return error.AccessDenied,
2594	posix.EADDRINUSE => return PosixBindError.AddressInUse,	1327	EADDRINUSE => return error.AddressInUse,
2595	posix.EBADF => unreachable, // always a race condition if this error is returned	1328	EBADF => unreachable, // always a race condition if this error is returned
2596	posix.EINVAL => unreachable,	1329	EINVAL => unreachable,
2597	posix.ENOTSOCK => unreachable,	1330	ENOTSOCK => unreachable,
2598	posix.EADDRNOTAVAIL => return PosixBindError.AddressNotAvailable,	1331	EADDRNOTAVAIL => return error.AddressNotAvailable,
2599	posix.EFAULT => unreachable,	1332	EFAULT => unreachable,
2600	posix.ELOOP => return PosixBindError.SymLinkLoop,	1333	ELOOP => return error.SymLinkLoop,
2601	posix.ENAMETOOLONG => return PosixBindError.NameTooLong,	1334	ENAMETOOLONG => return error.NameTooLong,
2602	posix.ENOENT => return PosixBindError.FileNotFound,	1335	ENOENT => return error.FileNotFound,
2603	posix.ENOMEM => return PosixBindError.SystemResources,	1336	ENOMEM => return error.SystemResources,
2604	posix.ENOTDIR => return PosixBindError.NotDir,	1337	ENOTDIR => return error.NotDir,
2605	posix.EROFS => return PosixBindError.ReadOnlyFileSystem,	1338	EROFS => return error.ReadOnlyFileSystem,
2606	else => return unexpectedErrorPosix(err),	1339	else => \|err\| return unexpectedErrno(err),
2607	}	1340	}
2608	}	1341	}
2609		1342
2610	const PosixListenError = error{	1343	const ListenError = error{
2611	/// Another socket is already listening on the same port.	1344	/// Another socket is already listening on the same port.
2612	/// For Internet domain sockets, the socket referred to by sockfd had not previously	1345	/// For Internet domain sockets, the socket referred to by sockfd had not previously
2613	/// been bound to an address and, upon attempting to bind it to an ephemeral port, it	1346	/// been bound to an address and, upon attempting to bind it to an ephemeral port, it
...	@@ -2621,24 +1354,22 @@ const PosixListenError = error{	...	@@ -2621,24 +1354,22 @@ const PosixListenError = error{
2621	/// The socket is not of a type that supports the listen() operation.	1354	/// The socket is not of a type that supports the listen() operation.
2622	OperationNotSupported,	1355	OperationNotSupported,
2623		1356
2624	/// See https://github.com/ziglang/zig/issues/1396
2625	Unexpected,	1357	Unexpected,
2626	};	1358	};
2627		1359
2628	pub fn posixListen(sockfd: i32, backlog: u32) PosixListenError!void {	1360	pub fn listen(sockfd: i32, backlog: u32) ListenError!void {
2629	const rc = posix.listen(sockfd, backlog);	1361	const rc = system.listen(sockfd, backlog);
2630	const err = posix.getErrno(rc);	1362	switch (errno(rc)) {
2631	switch (err) {
2632	0 => return,	1363	0 => return,
2633	posix.EADDRINUSE => return PosixListenError.AddressInUse,	1364	EADDRINUSE => return error.AddressInUse,
2634	posix.EBADF => unreachable,	1365	EBADF => unreachable,
2635	posix.ENOTSOCK => return PosixListenError.FileDescriptorNotASocket,	1366	ENOTSOCK => return error.FileDescriptorNotASocket,
2636	posix.EOPNOTSUPP => return PosixListenError.OperationNotSupported,	1367	EOPNOTSUPP => return error.OperationNotSupported,
2637	else => return unexpectedErrorPosix(err),	1368	else => \|err\| return unexpectedErrno(err),
2638	}	1369	}
2639	}	1370	}
2640		1371
2641	pub const PosixAcceptError = error{	1372	pub const AcceptError = error{
2642	ConnectionAborted,	1373	ConnectionAborted,
2643		1374
2644	/// The per-process limit on the number of open file descriptors has been reached.	1375	/// The per-process limit on the number of open file descriptors has been reached.
...	@@ -2662,66 +1393,66 @@ pub const PosixAcceptError = error{	...	@@ -2662,66 +1393,66 @@ pub const PosixAcceptError = error{
2662	/// Firewall rules forbid connection.	1393	/// Firewall rules forbid connection.
2663	BlockedByFirewall,	1394	BlockedByFirewall,
2664		1395
2665	/// See https://github.com/ziglang/zig/issues/1396
2666	Unexpected,	1396	Unexpected,
2667	};	1397	};
2668		1398
2669	pub fn posixAccept(fd: i32, addr: *posix.sockaddr, flags: u32) PosixAcceptError!i32 {	1399	/// Accept a connection on a socket. `fd` must be opened in blocking mode.
		1400	/// See also `accept4_async`.
		1401	pub fn accept4(fd: i32, addr: *sockaddr, flags: u32) AcceptError!i32 {
2670	while (true) {	1402	while (true) {
2671	var sockaddr_size = u32(@sizeOf(posix.sockaddr));	1403	var sockaddr_size = u32(@sizeOf(sockaddr));
2672	const rc = posix.accept4(fd, addr, &sockaddr_size, flags);	1404	const rc = system.accept4(fd, addr, &sockaddr_size, flags);
2673	const err = posix.getErrno(rc);	1405	switch (errno(rc)) {
2674	switch (err) {
2675	0 => return @intCast(i32, rc),	1406	0 => return @intCast(i32, rc),
2676	posix.EINTR => continue,	1407	EINTR => continue,
2677	else => return unexpectedErrorPosix(err),	1408	else => \|err\| return unexpectedErrno(err),
2678		1409
2679	posix.EAGAIN => unreachable, // use posixAsyncAccept for non-blocking	1410	EAGAIN => unreachable, // This function is for blocking only.
2680	posix.EBADF => unreachable, // always a race condition	1411	EBADF => unreachable, // always a race condition
2681	posix.ECONNABORTED => return PosixAcceptError.ConnectionAborted,	1412	ECONNABORTED => return error.ConnectionAborted,
2682	posix.EFAULT => unreachable,	1413	EFAULT => unreachable,
2683	posix.EINVAL => unreachable,	1414	EINVAL => unreachable,
2684	posix.EMFILE => return PosixAcceptError.ProcessFdQuotaExceeded,	1415	EMFILE => return error.ProcessFdQuotaExceeded,
2685	posix.ENFILE => return PosixAcceptError.SystemFdQuotaExceeded,	1416	ENFILE => return error.SystemFdQuotaExceeded,
2686	posix.ENOBUFS => return PosixAcceptError.SystemResources,	1417	ENOBUFS => return error.SystemResources,
2687	posix.ENOMEM => return PosixAcceptError.SystemResources,	1418	ENOMEM => return error.SystemResources,
2688	posix.ENOTSOCK => return PosixAcceptError.FileDescriptorNotASocket,	1419	ENOTSOCK => return error.FileDescriptorNotASocket,
2689	posix.EOPNOTSUPP => return PosixAcceptError.OperationNotSupported,	1420	EOPNOTSUPP => return error.OperationNotSupported,
2690	posix.EPROTO => return PosixAcceptError.ProtocolFailure,	1421	EPROTO => return error.ProtocolFailure,
2691	posix.EPERM => return PosixAcceptError.BlockedByFirewall,	1422	EPERM => return error.BlockedByFirewall,
2692	}	1423	}
2693	}	1424	}
2694	}	1425	}
2695		1426
		1427	/// This is the same as `accept4` except `fd` is expected to be non-blocking.
2696	/// Returns -1 if would block.	1428	/// Returns -1 if would block.
2697	pub fn posixAsyncAccept(fd: i32, addr: *posix.sockaddr, flags: u32) PosixAcceptError!i32 {	1429	pub fn accept4_async(fd: i32, addr: *sockaddr, flags: u32) AcceptError!i32 {
2698	while (true) {	1430	while (true) {
2699	var sockaddr_size = u32(@sizeOf(posix.sockaddr));	1431	var sockaddr_size = u32(@sizeOf(sockaddr));
2700	const rc = posix.accept4(fd, addr, &sockaddr_size, flags);	1432	const rc = system.accept4(fd, addr, &sockaddr_size, flags);
2701	const err = posix.getErrno(rc);	1433	switch (errno(rc)) {
2702	switch (err) {
2703	0 => return @intCast(i32, rc),	1434	0 => return @intCast(i32, rc),
2704	posix.EINTR => continue,	1435	EINTR => continue,
2705	else => return unexpectedErrorPosix(err),	1436	else => \|err\| return unexpectedErrno(err),
2706		1437
2707	posix.EAGAIN => return -1,	1438	EAGAIN => return -1,
2708	posix.EBADF => unreachable, // always a race condition	1439	EBADF => unreachable, // always a race condition
2709	posix.ECONNABORTED => return PosixAcceptError.ConnectionAborted,	1440	ECONNABORTED => return error.ConnectionAborted,
2710	posix.EFAULT => unreachable,	1441	EFAULT => unreachable,
2711	posix.EINVAL => unreachable,	1442	EINVAL => unreachable,
2712	posix.EMFILE => return PosixAcceptError.ProcessFdQuotaExceeded,	1443	EMFILE => return error.ProcessFdQuotaExceeded,
2713	posix.ENFILE => return PosixAcceptError.SystemFdQuotaExceeded,	1444	ENFILE => return error.SystemFdQuotaExceeded,
2714	posix.ENOBUFS => return PosixAcceptError.SystemResources,	1445	ENOBUFS => return error.SystemResources,
2715	posix.ENOMEM => return PosixAcceptError.SystemResources,	1446	ENOMEM => return error.SystemResources,
2716	posix.ENOTSOCK => return PosixAcceptError.FileDescriptorNotASocket,	1447	ENOTSOCK => return error.FileDescriptorNotASocket,
2717	posix.EOPNOTSUPP => return PosixAcceptError.OperationNotSupported,	1448	EOPNOTSUPP => return error.OperationNotSupported,
2718	posix.EPROTO => return PosixAcceptError.ProtocolFailure,	1449	EPROTO => return error.ProtocolFailure,
2719	posix.EPERM => return PosixAcceptError.BlockedByFirewall,	1450	EPERM => return error.BlockedByFirewall,
2720	}	1451	}
2721	}	1452	}
2722	}	1453	}
2723		1454
2724	pub const LinuxEpollCreateError = error{	1455	pub const EpollCreateError = error{
2725	/// The per-user limit on the number of epoll instances imposed by	1456	/// The per-user limit on the number of epoll instances imposed by
2726	/// /proc/sys/fs/epoll/max_user_instances was encountered. See epoll(7) for further	1457	/// /proc/sys/fs/epoll/max_user_instances was encountered. See epoll(7) for further
2727	/// details.	1458	/// details.
...	@@ -2734,25 +1465,23 @@ pub const LinuxEpollCreateError = error{	...	@@ -2734,25 +1465,23 @@ pub const LinuxEpollCreateError = error{
2734	/// There was insufficient memory to create the kernel object.	1465	/// There was insufficient memory to create the kernel object.
2735	SystemResources,	1466	SystemResources,
2736		1467
2737	/// See https://github.com/ziglang/zig/issues/1396
2738	Unexpected,	1468	Unexpected,
2739	};	1469	};
2740		1470
2741	pub fn linuxEpollCreate(flags: u32) LinuxEpollCreateError!i32 {	1471	pub fn epoll_create1(flags: u32) EpollCreateError!i32 {
2742	const rc = posix.epoll_create1(flags);	1472	const rc = system.epoll_create1(flags);
2743	const err = posix.getErrno(rc);	1473	switch (errno(rc)) {
2744	switch (err) {
2745	0 => return @intCast(i32, rc),	1474	0 => return @intCast(i32, rc),
2746	else => return unexpectedErrorPosix(err),	1475	else => \|err\| return unexpectedErrno(err),
2747		1476
2748	posix.EINVAL => unreachable,	1477	EINVAL => unreachable,
2749	posix.EMFILE => return LinuxEpollCreateError.ProcessFdQuotaExceeded,	1478	EMFILE => return error.ProcessFdQuotaExceeded,
2750	posix.ENFILE => return LinuxEpollCreateError.SystemFdQuotaExceeded,	1479	ENFILE => return error.SystemFdQuotaExceeded,
2751	posix.ENOMEM => return LinuxEpollCreateError.SystemResources,	1480	ENOMEM => return error.SystemResources,
2752	}	1481	}
2753	}	1482	}
2754		1483
2755	pub const LinuxEpollCtlError = error{	1484	pub const EpollCtlError = error{
2756	/// op was EPOLL_CTL_ADD, and the supplied file descriptor fd is already registered	1485	/// op was EPOLL_CTL_ADD, and the supplied file descriptor fd is already registered
2757	/// with this epoll instance.	1486	/// with this epoll instance.
2758	FileDescriptorAlreadyPresentInSet,	1487	FileDescriptorAlreadyPresentInSet,
...	@@ -2777,752 +1506,942 @@ pub const LinuxEpollCtlError = error{	...	@@ -2777,752 +1506,942 @@ pub const LinuxEpollCtlError = error{
2777	/// for example, a regular file or a directory.	1506	/// for example, a regular file or a directory.
2778	FileDescriptorIncompatibleWithEpoll,	1507	FileDescriptorIncompatibleWithEpoll,
2779		1508
2780	/// See https://github.com/ziglang/zig/issues/1396
2781	Unexpected,	1509	Unexpected,
2782	};	1510	};
2783		1511
2784	pub fn linuxEpollCtl(epfd: i32, op: u32, fd: i32, event: *linux.epoll_event) LinuxEpollCtlError!void {	1512	pub fn epoll_ctl(epfd: i32, op: u32, fd: i32, event: *epoll_event) EpollCtlError!void {
2785	const rc = posix.epoll_ctl(epfd, op, fd, event);	1513	const rc = system.epoll_ctl(epfd, op, fd, event);
2786	const err = posix.getErrno(rc);	1514	switch (errno(rc)) {
2787	switch (err) {	1515	0 => return,
2788	0 => return,	1516	else => \|err\| return unexpectedErrno(err),
2789	else => return unexpectedErrorPosix(err),	1517
		1518	EBADF => unreachable, // always a race condition if this happens
		1519	EEXIST => return error.FileDescriptorAlreadyPresentInSet,
		1520	EINVAL => unreachable,
		1521	ELOOP => return error.OperationCausesCircularLoop,
		1522	ENOENT => return error.FileDescriptorNotRegistered,
		1523	ENOMEM => return error.SystemResources,
		1524	ENOSPC => return error.UserResourceLimitReached,
		1525	EPERM => return error.FileDescriptorIncompatibleWithEpoll,
		1526	}
		1527	}
		1528
		1529	/// Waits for an I/O event on an epoll file descriptor.
		1530	/// Returns the number of file descriptors ready for the requested I/O,
		1531	/// or zero if no file descriptor became ready during the requested timeout milliseconds.
		1532	pub fn epoll_wait(epfd: i32, events: []epoll_event, timeout: i32) usize {
		1533	while (true) {
		1534	// TODO get rid of the @intCast
		1535	const rc = system.epoll_wait(epfd, events.ptr, @intCast(u32, events.len), timeout);
		1536	switch (errno(rc)) {
		1537	0 => return @intCast(usize, rc),
		1538	EINTR => continue,
		1539	EBADF => unreachable,
		1540	EFAULT => unreachable,
		1541	EINVAL => unreachable,
		1542	else => unreachable,
		1543	}
		1544	}
		1545	}
		1546
		1547	pub const EventFdError = error{
		1548	SystemResources,
		1549	ProcessFdQuotaExceeded,
		1550	SystemFdQuotaExceeded,
		1551	Unexpected,
		1552	};
		1553
		1554	pub fn eventfd(initval: u32, flags: u32) EventFdError!i32 {
		1555	const rc = system.eventfd(initval, flags);
		1556	switch (errno(rc)) {
		1557	0 => return @intCast(i32, rc),
		1558	else => \|err\| return unexpectedErrno(err),
		1559
		1560	EINVAL => unreachable, // invalid parameters
		1561	EMFILE => return error.ProcessFdQuotaExceeded,
		1562	ENFILE => return error.SystemFdQuotaExceeded,
		1563	ENODEV => return error.SystemResources,
		1564	ENOMEM => return error.SystemResources,
		1565	}
		1566	}
		1567
		1568	pub const GetSockNameError = error{
		1569	/// Insufficient resources were available in the system to perform the operation.
		1570	SystemResources,
		1571
		1572	Unexpected,
		1573	};
		1574
		1575	pub fn getsockname(sockfd: i32) GetSockNameError!sockaddr {
		1576	var addr: sockaddr = undefined;
		1577	var addrlen: socklen_t = @sizeOf(sockaddr);
		1578	switch (errno(system.getsockname(sockfd, &addr, &addrlen))) {
		1579	0 => return addr,
		1580	else => \|err\| return unexpectedErrno(err),
		1581
		1582	EBADF => unreachable, // always a race condition
		1583	EFAULT => unreachable,
		1584	EINVAL => unreachable, // invalid parameters
		1585	ENOTSOCK => unreachable,
		1586	ENOBUFS => return error.SystemResources,
		1587	}
		1588	}
		1589
		1590	pub const ConnectError = error{
		1591	/// For UNIX domain sockets, which are identified by pathname: Write permission is denied on the socket
		1592	/// file, or search permission is denied for one of the directories in the path prefix.
		1593	/// or
		1594	/// The user tried to connect to a broadcast address without having the socket broadcast flag enabled or
		1595	/// the connection request failed because of a local firewall rule.
		1596	PermissionDenied,
		1597
		1598	/// Local address is already in use.
		1599	AddressInUse,
		1600
		1601	/// (Internet domain sockets) The socket referred to by sockfd had not previously been bound to an
		1602	/// address and, upon attempting to bind it to an ephemeral port, it was determined that all port numbers
		1603	/// in the ephemeral port range are currently in use. See the discussion of
		1604	/// /proc/sys/net/ipv4/ip_local_port_range in ip(7).
		1605	AddressNotAvailable,
		1606
		1607	/// The passed address didn't have the correct address family in its sa_family field.
		1608	AddressFamilyNotSupported,
		1609
		1610	/// Insufficient entries in the routing cache.
		1611	SystemResources,
		1612
		1613	/// A connect() on a stream socket found no one listening on the remote address.
		1614	ConnectionRefused,
		1615
		1616	/// Network is unreachable.
		1617	NetworkUnreachable,
		1618
		1619	/// Timeout while attempting connection. The server may be too busy to accept new connections. Note
		1620	/// that for IP sockets the timeout may be very long when syncookies are enabled on the server.
		1621	ConnectionTimedOut,
		1622
		1623	Unexpected,
		1624	};
		1625
		1626	/// Initiate a connection on a socket.
		1627	/// This is for blocking file descriptors only.
		1628	/// For non-blocking, see `connect_async`.
		1629	pub fn connect(sockfd: i32, sock_addr: *sockaddr, len: socklen_t) ConnectError!void {
		1630	while (true) {
		1631	switch (errno(system.connect(sockfd, sock_addr, @sizeOf(sockaddr)))) {
		1632	0 => return,
		1633	EACCES => return error.PermissionDenied,
		1634	EPERM => return error.PermissionDenied,
		1635	EADDRINUSE => return error.AddressInUse,
		1636	EADDRNOTAVAIL => return error.AddressNotAvailable,
		1637	EAFNOSUPPORT => return error.AddressFamilyNotSupported,
		1638	EAGAIN => return error.SystemResources,
		1639	EALREADY => unreachable, // The socket is nonblocking and a previous connection attempt has not yet been completed.
		1640	EBADF => unreachable, // sockfd is not a valid open file descriptor.
		1641	ECONNREFUSED => return error.ConnectionRefused,
		1642	EFAULT => unreachable, // The socket structure address is outside the user's address space.
		1643	EINPROGRESS => unreachable, // The socket is nonblocking and the connection cannot be completed immediately.
		1644	EINTR => continue,
		1645	EISCONN => unreachable, // The socket is already connected.
		1646	ENETUNREACH => return error.NetworkUnreachable,
		1647	ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
		1648	EPROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
		1649	ETIMEDOUT => return error.ConnectionTimedOut,
		1650	else => \|err\| return unexpectedErrno(err),
		1651	}
		1652	}
		1653	}
		1654
		1655	/// Same as `connect` except it is for blocking socket file descriptors.
		1656	/// It expects to receive EINPROGRESS`.
		1657	pub fn connect_async(sockfd: i32, sock_addr: *sockaddr, len: socklen_t) ConnectError!void {
		1658	while (true) {
		1659	switch (errno(system.connect(sockfd, sock_addr, @sizeOf(sockaddr)))) {
		1660	EINTR => continue,
		1661	0, EINPROGRESS => return,
		1662	EACCES => return error.PermissionDenied,
		1663	EPERM => return error.PermissionDenied,
		1664	EADDRINUSE => return error.AddressInUse,
		1665	EADDRNOTAVAIL => return error.AddressNotAvailable,
		1666	EAFNOSUPPORT => return error.AddressFamilyNotSupported,
		1667	EAGAIN => return error.SystemResources,
		1668	EALREADY => unreachable, // The socket is nonblocking and a previous connection attempt has not yet been completed.
		1669	EBADF => unreachable, // sockfd is not a valid open file descriptor.
		1670	ECONNREFUSED => return error.ConnectionRefused,
		1671	EFAULT => unreachable, // The socket structure address is outside the user's address space.
		1672	EISCONN => unreachable, // The socket is already connected.
		1673	ENETUNREACH => return error.NetworkUnreachable,
		1674	ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
		1675	EPROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
		1676	ETIMEDOUT => return error.ConnectionTimedOut,
		1677	else => \|err\| return unexpectedErrno(err),
		1678	}
		1679	}
		1680	}
		1681
		1682	pub fn getsockoptError(sockfd: i32) ConnectError!void {
		1683	var err_code: u32 = undefined;
		1684	var size: u32 = @sizeOf(u32);
		1685	const rc = system.getsockopt(sockfd, SOL_SOCKET, SO_ERROR, @ptrCast([*]u8, &err_code), &size);
		1686	assert(size == 4);
		1687	switch (errno(rc)) {
		1688	0 => switch (err_code) {
		1689	0 => return,
		1690	EACCES => return error.PermissionDenied,
		1691	EPERM => return error.PermissionDenied,
		1692	EADDRINUSE => return error.AddressInUse,
		1693	EADDRNOTAVAIL => return error.AddressNotAvailable,
		1694	EAFNOSUPPORT => return error.AddressFamilyNotSupported,
		1695	EAGAIN => return error.SystemResources,
		1696	EALREADY => unreachable, // The socket is nonblocking and a previous connection attempt has not yet been completed.
		1697	EBADF => unreachable, // sockfd is not a valid open file descriptor.
		1698	ECONNREFUSED => return error.ConnectionRefused,
		1699	EFAULT => unreachable, // The socket structure address is outside the user's address space.
		1700	EISCONN => unreachable, // The socket is already connected.
		1701	ENETUNREACH => return error.NetworkUnreachable,
		1702	ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
		1703	EPROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
		1704	ETIMEDOUT => return error.ConnectionTimedOut,
		1705	else => \|err\| return unexpectedErrno(err),
		1706	},
		1707	EBADF => unreachable, // The argument sockfd is not a valid file descriptor.
		1708	EFAULT => unreachable, // The address pointed to by optval or optlen is not in a valid part of the process address space.
		1709	EINVAL => unreachable,
		1710	ENOPROTOOPT => unreachable, // The option is unknown at the level indicated.
		1711	ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
		1712	else => \|err\| return unexpectedErrno(err),
		1713	}
		1714	}
		1715
		1716	pub fn waitpid(pid: i32, flags: u32) u32 {
		1717	// TODO allow implicit pointer cast from u32 to c_uint ?
		1718	const Status = if (builtin.link_libc) c_uint else u32;
		1719	var status: Status = undefined;
		1720	while (true) {
		1721	switch (errno(system.waitpid(pid, &status, flags))) {
		1722	0 => return @bitCast(u32, status),
		1723	EINTR => continue,
		1724	ECHILD => unreachable, // The process specified does not exist. It would be a race condition to handle this error.
		1725	EINVAL => unreachable, // The options argument was invalid
		1726	else => unreachable,
		1727	}
		1728	}
		1729	}
		1730
		1731	pub const FStatError = error{
		1732	SystemResources,
		1733	Unexpected,
		1734	};
		1735
		1736	pub fn fstat(fd: fd_t) FStatError!Stat {
		1737	var stat: Stat = undefined;
		1738	if (darwin.is_the_target) {
		1739	switch (darwin.getErrno(darwin.@"fstat$INODE64"(fd, &stat))) {
		1740	0 => return stat,
		1741	EBADF => unreachable, // Always a race condition.
		1742	ENOMEM => return error.SystemResources,
		1743	else => \|err\| return unexpectedErrno(err),
		1744	}
		1745	}
		1746
		1747	switch (errno(system.fstat(fd, &stat))) {
		1748	0 => return stat,
		1749	EBADF => unreachable, // Always a race condition.
		1750	ENOMEM => return error.SystemResources,
		1751	else => \|err\| return unexpectedErrno(err),
		1752	}
		1753	}
		1754
		1755	pub const KQueueError = error{
		1756	/// The per-process limit on the number of open file descriptors has been reached.
		1757	ProcessFdQuotaExceeded,
		1758
		1759	/// The system-wide limit on the total number of open files has been reached.
		1760	SystemFdQuotaExceeded,
		1761
		1762	Unexpected,
		1763	};
		1764
		1765	pub fn kqueue() KQueueError!i32 {
		1766	const rc = system.kqueue();
		1767	switch (errno(rc)) {
		1768	0 => return @intCast(i32, rc),
		1769	EMFILE => return error.ProcessFdQuotaExceeded,
		1770	ENFILE => return error.SystemFdQuotaExceeded,
		1771	else => \|err\| return unexpectedErrno(err),
		1772	}
		1773	}
		1774
		1775	pub const KEventError = error{
		1776	/// The process does not have permission to register a filter.
		1777	AccessDenied,
		1778
		1779	/// The event could not be found to be modified or deleted.
		1780	EventNotFound,
		1781
		1782	/// No memory was available to register the event.
		1783	SystemResources,
		1784
		1785	/// The specified process to attach to does not exist.
		1786	ProcessNotFound,
		1787
		1788	/// changelist or eventlist had too many items on it.
		1789	/// TODO remove this possibility
		1790	Overflow,
		1791	};
		1792
		1793	pub fn kevent(
		1794	kq: i32,
		1795	changelist: []const Kevent,
		1796	eventlist: []Kevent,
		1797	timeout: ?*const timespec,
		1798	) KEventError!usize {
		1799	while (true) {
		1800	const rc = system.kevent(
		1801	kq,
		1802	changelist.ptr,
		1803	try math.cast(c_int, changelist.len),
		1804	eventlist.ptr,
		1805	try math.cast(c_int, eventlist.len),
		1806	timeout,
		1807	);
		1808	switch (errno(rc)) {
		1809	0 => return @intCast(usize, rc),
		1810	EACCES => return error.AccessDenied,
		1811	EFAULT => unreachable,
		1812	EBADF => unreachable, // Always a race condition.
		1813	EINTR => continue,
		1814	EINVAL => unreachable,
		1815	ENOENT => return error.EventNotFound,
		1816	ENOMEM => return error.SystemResources,
		1817	ESRCH => return error.ProcessNotFound,
		1818	else => unreachable,
		1819	}
		1820	}
		1821	}
		1822
		1823	pub const INotifyInitError = error{
		1824	ProcessFdQuotaExceeded,
		1825	SystemFdQuotaExceeded,
		1826	SystemResources,
		1827	Unexpected,
		1828	};
		1829
		1830	/// initialize an inotify instance
		1831	pub fn inotify_init1(flags: u32) INotifyInitError!i32 {
		1832	const rc = system.inotify_init1(flags);
		1833	switch (errno(rc)) {
		1834	0 => return @intCast(i32, rc),
		1835	EINVAL => unreachable,
		1836	EMFILE => return error.ProcessFdQuotaExceeded,
		1837	ENFILE => return error.SystemFdQuotaExceeded,
		1838	ENOMEM => return error.SystemResources,
		1839	else => \|err\| return unexpectedErrno(err),
		1840	}
		1841	}
		1842
		1843	pub const INotifyAddWatchError = error{
		1844	AccessDenied,
		1845	NameTooLong,
		1846	FileNotFound,
		1847	SystemResources,
		1848	UserResourceLimitReached,
		1849	Unexpected,
		1850	};
		1851
		1852	/// add a watch to an initialized inotify instance
		1853	pub fn inotify_add_watch(inotify_fd: i32, pathname: []const u8, mask: u32) INotifyAddWatchError!i32 {
		1854	const pathname_c = try toPosixPath(pathname);
		1855	return inotify_add_watchC(inotify_fd, &pathname_c, mask);
		1856	}
2790		1857
2791	posix.EBADF => unreachable, // always a race condition if this happens	1858	/// Same as `inotify_add_watch` except pathname is null-terminated.
2792	posix.EEXIST => return LinuxEpollCtlError.FileDescriptorAlreadyPresentInSet,	1859	pub fn inotify_add_watchC(inotify_fd: i32, pathname: [*]const u8, mask: u32) INotifyAddWatchError!i32 {
2793	posix.EINVAL => unreachable,	1860	const rc = system.inotify_add_watch(inotify_fd, pathname, mask);
2794	posix.ELOOP => return LinuxEpollCtlError.OperationCausesCircularLoop,	1861	switch (errno(rc)) {
2795	posix.ENOENT => return LinuxEpollCtlError.FileDescriptorNotRegistered,	1862	0 => return @intCast(i32, rc),
2796	posix.ENOMEM => return LinuxEpollCtlError.SystemResources,	1863	EACCES => return error.AccessDenied,
2797	posix.ENOSPC => return LinuxEpollCtlError.UserResourceLimitReached,	1864	EBADF => unreachable,
2798	posix.EPERM => return LinuxEpollCtlError.FileDescriptorIncompatibleWithEpoll,	1865	EFAULT => unreachable,
		1866	EINVAL => unreachable,
		1867	ENAMETOOLONG => return error.NameTooLong,
		1868	ENOENT => return error.FileNotFound,
		1869	ENOMEM => return error.SystemResources,
		1870	ENOSPC => return error.UserResourceLimitReached,
		1871	else => \|err\| return unexpectedErrno(err),
2799	}	1872	}
2800	}	1873	}
2801		1874
2802	pub fn linuxEpollWait(epfd: i32, events: []linux.epoll_event, timeout: i32) usize {	1875	/// remove an existing watch from an inotify instance
2803	while (true) {	1876	pub fn inotify_rm_watch(inotify_fd: i32, wd: i32) void {
2804	const rc = posix.epoll_wait(epfd, events.ptr, @intCast(u32, events.len), timeout);	1877	switch (errno(system.inotify_rm_watch(inotify_fd, wd))) {
2805	const err = posix.getErrno(rc);	1878	0 => return,
2806	switch (err) {	1879	EBADF => unreachable,
2807	0 => return rc,	1880	EINVAL => unreachable,
2808	posix.EINTR => continue,	1881	else => unreachable,
2809	posix.EBADF => unreachable,
2810	posix.EFAULT => unreachable,
2811	posix.EINVAL => unreachable,
2812	else => unreachable,
2813	}
2814	}	1882	}
2815	}	1883	}
2816		1884
2817	pub const LinuxEventFdError = error{	1885	pub const MProtectError = error{
2818	InvalidFlagValue,	1886	AccessDenied,
2819	SystemResources,	1887	OutOfMemory,
2820	ProcessFdQuotaExceeded,
2821	SystemFdQuotaExceeded,
2822
2823	/// See https://github.com/ziglang/zig/issues/1396
2824	Unexpected,	1888	Unexpected,
2825	};	1889	};
2826		1890
2827	pub fn linuxEventFd(initval: u32, flags: u32) LinuxEventFdError!i32 {	1891	/// `memory.len` must be page-aligned.
2828	const rc = posix.eventfd(initval, flags);	1892	pub fn mprotect(memory: [*]align(mem.page_size) u8, protection: u32) MProtectError!void {
2829	const err = posix.getErrno(rc);	1893	assert(mem.isAligned(memory.len, mem.page_size));
2830	switch (err) {	1894	switch (errno(system.mprotect(memory.ptr, memory.len, protection))) {
2831	0 => return @intCast(i32, rc),	1895	0 => return,
2832	else => return unexpectedErrorPosix(err),	1896	EINVAL => unreachable,
2833		1897	EACCES => return error.AccessDenied,
2834	posix.EINVAL => return LinuxEventFdError.InvalidFlagValue,	1898	ENOMEM => return error.OutOfMemory,
2835	posix.EMFILE => return LinuxEventFdError.ProcessFdQuotaExceeded,	1899	else => return unexpectedErrno(err),
2836	posix.ENFILE => return LinuxEventFdError.SystemFdQuotaExceeded,
2837	posix.ENODEV => return LinuxEventFdError.SystemResources,
2838	posix.ENOMEM => return LinuxEventFdError.SystemResources,
2839	}	1900	}
2840	}	1901	}
2841		1902
2842	pub const PosixGetSockNameError = error{	1903	pub const ForkError = error{
2843	/// Insufficient resources were available in the system to perform the operation.
2844	SystemResources,	1904	SystemResources,
2845
2846	/// See https://github.com/ziglang/zig/issues/1396
2847	Unexpected,	1905	Unexpected,
2848	};	1906	};
2849		1907
2850	pub fn posixGetSockName(sockfd: i32) PosixGetSockNameError!posix.sockaddr {	1908	pub fn fork() ForkError!pid_t {
2851	var addr: posix.sockaddr = undefined;	1909	const rc = system.fork();
2852	var addrlen: posix.socklen_t = @sizeOf(posix.sockaddr);	1910	switch (errno(rc)) {
2853	const rc = posix.getsockname(sockfd, &addr, &addrlen);	1911	0 => return @intCast(pid_t, rc),
2854	const err = posix.getErrno(rc);	1912	EAGAIN => return error.SystemResources,
2855	switch (err) {	1913	ENOMEM => return error.SystemResources,
2856	0 => return addr,	1914	else => \|err\| return unexpectedErrno(err),
2857	else => return unexpectedErrorPosix(err),
2858
2859	posix.EBADF => unreachable,
2860	posix.EFAULT => unreachable,
2861	posix.EINVAL => unreachable,
2862	posix.ENOTSOCK => unreachable,
2863	posix.ENOBUFS => return PosixGetSockNameError.SystemResources,
2864	}	1915	}
2865	}	1916	}
2866		1917
2867	pub const PosixConnectError = error{	1918	pub const MMapError = error{
2868	/// For UNIX domain sockets, which are identified by pathname: Write permission is denied on the socket	1919	/// The underlying filesystem of the specified file does not support memory mapping.
2869	/// file, or search permission is denied for one of the directories in the path prefix.	1920	MemoryMappingNotSupported,
2870	/// or
2871	/// The user tried to connect to a broadcast address without having the socket broadcast flag enabled or
2872	/// the connection request failed because of a local firewall rule.
2873	PermissionDenied,
2874		1921
2875	/// Local address is already in use.	1922	/// A file descriptor refers to a non-regular file. Or a file mapping was requested,
2876	AddressInUse,	1923	/// but the file descriptor is not open for reading. Or `MAP_SHARED` was requested
		1924	/// and `PROT_WRITE` is set, but the file descriptor is not open in `O_RDWR` mode.
		1925	/// Or `PROT_WRITE` is set, but the file is append-only.
		1926	AccessDenied,
2877		1927
2878	/// (Internet domain sockets) The socket referred to by sockfd had not previously been bound to an	1928	/// The `prot` argument asks for `PROT_EXEC` but the mapped area belongs to a file on
2879	/// address and, upon attempting to bind it to an ephemeral port, it was determined that all port numbers	1929	/// a filesystem that was mounted no-exec.
2880	/// in the ephemeral port range are currently in use. See the discussion of	1930	PermissionDenied,
2881	/// /proc/sys/net/ipv4/ip_local_port_range in ip(7).	1931	LockedMemoryLimitExceeded,
2882	AddressNotAvailable,	1932	OutOfMemory,
		1933	Unexpected,
		1934	};
2883		1935
2884	/// The passed address didn't have the correct address family in its sa_family field.	1936	/// Map files or devices into memory.
2885	AddressFamilyNotSupported,	1937	/// Use of a mapped region can result in these signals:
		1938	/// `length` must be page-aligned.
		1939	/// * SIGSEGV - Attempted write into a region mapped as read-only.
		1940	/// * SIGBUS - Attempted access to a portion of the buffer that does not correspond to the file
		1941	pub fn mmap(
		1942	ptr: ?[*]align(mem.page_size) u8,
		1943	length: usize,
		1944	prot: u32,
		1945	flags: u32,
		1946	fd: fd_t,
		1947	offset: isize,
		1948	) MMapError![]align(mem.page_size) u8 {
		1949	assert(mem.isAligned(length, mem.page_size));
		1950	const err = if (builtin.link_libc) blk: {
		1951	const rc = std.c.mmap(ptr, length, prot, flags, fd, offset);
		1952	if (rc != MAP_FAILED) return @ptrCast([*]align(mem.page_size) u8, @alignCast(mem.page_size, rc))[0..length];
		1953	break :blk @intCast(usize, system._errno().*);
		1954	} else blk: {
		1955	const rc = system.mmap(ptr, length, prot, flags, fd, offset);
		1956	const err = errno(rc);
		1957	if (err == 0) return @intToPtr([*]align(mem.page_size) u8, rc)[0..length];
		1958	break :blk err;
		1959	};
		1960	switch (err) {
		1961	ETXTBSY => return error.AccessDenied,
		1962	EACCES => return error.AccessDenied,
		1963	EPERM => return error.PermissionDenied,
		1964	EAGAIN => return error.LockedMemoryLimitExceeded,
		1965	EBADF => unreachable, // Always a race condition.
		1966	EOVERFLOW => unreachable, // The number of pages used for length + offset would overflow.
		1967	ENODEV => return error.MemoryMappingNotSupported,
		1968	EINVAL => unreachable, // Invalid parameters to mmap()
		1969	ENOMEM => return error.OutOfMemory,
		1970	else => return unexpectedErrno(err),
		1971	}
		1972	}
		1973
		1974	/// Deletes the mappings for the specified address range, causing
		1975	/// further references to addresses within the range to generate invalid memory references.
		1976	/// Note that while POSIX allows unmapping a region in the middle of an existing mapping,
		1977	/// Zig's munmap function does not, for two reasons:
		1978	/// * It violates the Zig principle that resource deallocation must succeed.
		1979	/// * The Windows function, VirtualFree, has this restriction.
		1980	pub fn munmap(memory: []align(mem.page_size) u8) void {
		1981	switch (errno(system.munmap(memory.ptr, memory.len))) {
		1982	0 => return,
		1983	EINVAL => unreachable, // Invalid parameters.
		1984	ENOMEM => unreachable, // Attempted to unmap a region in the middle of an existing mapping.
		1985	else => unreachable,
		1986	}
		1987	}
2886		1988
2887	/// Insufficient entries in the routing cache.	1989	pub const AccessError = error{
		1990	PermissionDenied,
		1991	FileNotFound,
		1992	NameTooLong,
		1993	InputOutput,
2888	SystemResources,	1994	SystemResources,
		1995	BadPathName,
2889		1996
2890	/// A connect() on a stream socket found no one listening on the remote address.	1997	/// On Windows, file paths must be valid Unicode.
2891	ConnectionRefused,	1998	InvalidUtf8,
2892
2893	/// Network is unreachable.
2894	NetworkUnreachable,
2895
2896	/// Timeout while attempting connection. The server may be too busy to accept new connections. Note
2897	/// that for IP sockets the timeout may be very long when syncookies are enabled on the server.
2898	ConnectionTimedOut,
2899		1999
2900	/// See https://github.com/ziglang/zig/issues/1396
2901	Unexpected,	2000	Unexpected,
2902	};	2001	};
2903		2002
2904	pub fn posixConnect(sockfd: i32, sockaddr: *const posix.sockaddr) PosixConnectError!void {	2003	/// check user's permissions for a file
2905	while (true) {	2004	/// TODO currently this assumes `mode` is `F_OK` on Windows.
2906	const rc = posix.connect(sockfd, sockaddr, @sizeOf(posix.sockaddr));	2005	pub fn access(path: []const u8, mode: u32) AccessError!void {
2907	const err = posix.getErrno(rc);	2006	if (windows.is_the_target) {
2908	switch (err) {	2007	const path_w = try windows.sliceToPrefixedFileW(path);
2909	0 => return,	2008	_ = try windows.GetFileAttributesW(&path_w);
2910	else => return unexpectedErrorPosix(err),	2009	return;
2911
2912	posix.EACCES => return PosixConnectError.PermissionDenied,
2913	posix.EPERM => return PosixConnectError.PermissionDenied,
2914	posix.EADDRINUSE => return PosixConnectError.AddressInUse,
2915	posix.EADDRNOTAVAIL => return PosixConnectError.AddressNotAvailable,
2916	posix.EAFNOSUPPORT => return PosixConnectError.AddressFamilyNotSupported,
2917	posix.EAGAIN => return PosixConnectError.SystemResources,
2918	posix.EALREADY => unreachable, // The socket is nonblocking and a previous connection attempt has not yet been completed.
2919	posix.EBADF => unreachable, // sockfd is not a valid open file descriptor.
2920	posix.ECONNREFUSED => return PosixConnectError.ConnectionRefused,
2921	posix.EFAULT => unreachable, // The socket structure address is outside the user's address space.
2922	posix.EINPROGRESS => unreachable, // The socket is nonblocking and the connection cannot be completed immediately.
2923	posix.EINTR => continue,
2924	posix.EISCONN => unreachable, // The socket is already connected.
2925	posix.ENETUNREACH => return PosixConnectError.NetworkUnreachable,
2926	posix.ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
2927	posix.EPROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
2928	posix.ETIMEDOUT => return PosixConnectError.ConnectionTimedOut,
2929	}
2930	}	2010	}
		2011	const path_c = try toPosixPath(path);
		2012	return accessC(&path_c, mode);
2931	}	2013	}
2932		2014
2933	/// Same as posixConnect except it is for blocking socket file descriptors.	2015	/// Same as `access` except `path` is null-terminated.
2934	/// It expects to receive EINPROGRESS.	2016	pub fn accessC(path: [*]const u8, mode: u32) AccessError!void {
2935	pub fn posixConnectAsync(sockfd: i32, sockaddr: *const c_void, len: u32) PosixConnectError!void {	2017	if (windows.is_the_target) {
2936	while (true) {	2018	const path_w = try windows.cStrToPrefixedFileW(path);
2937	const rc = posix.connect(sockfd, sockaddr, len);	2019	_ = try windows.GetFileAttributesW(&path_w);
2938	const err = posix.getErrno(rc);	2020	return;
2939	switch (err) {
2940	0, posix.EINPROGRESS => return,
2941	else => return unexpectedErrorPosix(err),
2942
2943	posix.EACCES => return PosixConnectError.PermissionDenied,
2944	posix.EPERM => return PosixConnectError.PermissionDenied,
2945	posix.EADDRINUSE => return PosixConnectError.AddressInUse,
2946	posix.EADDRNOTAVAIL => return PosixConnectError.AddressNotAvailable,
2947	posix.EAFNOSUPPORT => return PosixConnectError.AddressFamilyNotSupported,
2948	posix.EAGAIN => return PosixConnectError.SystemResources,
2949	posix.EALREADY => unreachable, // The socket is nonblocking and a previous connection attempt has not yet been completed.
2950	posix.EBADF => unreachable, // sockfd is not a valid open file descriptor.
2951	posix.ECONNREFUSED => return PosixConnectError.ConnectionRefused,
2952	posix.EFAULT => unreachable, // The socket structure address is outside the user's address space.
2953	posix.EINTR => continue,
2954	posix.EISCONN => unreachable, // The socket is already connected.
2955	posix.ENETUNREACH => return PosixConnectError.NetworkUnreachable,
2956	posix.ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
2957	posix.EPROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
2958	posix.ETIMEDOUT => return PosixConnectError.ConnectionTimedOut,
2959	}
2960	}	2021	}
2961	}	2022	switch (errno(system.access(path, mode))) {
		2023	0 => return,
		2024	EACCES => return error.PermissionDenied,
		2025	EROFS => return error.PermissionDenied,
		2026	ELOOP => return error.PermissionDenied,
		2027	ETXTBSY => return error.PermissionDenied,
		2028	ENOTDIR => return error.FileNotFound,
		2029	ENOENT => return error.FileNotFound,
2962		2030
2963	pub fn posixGetSockOptConnectError(sockfd: i32) PosixConnectError!void {	2031	ENAMETOOLONG => return error.NameTooLong,
2964	var err_code: i32 = undefined;	2032	EINVAL => unreachable,
2965	var size: u32 = @sizeOf(i32);	2033	EFAULT => unreachable,
2966	const rc = posix.getsockopt(sockfd, posix.SOL_SOCKET, posix.SO_ERROR, @ptrCast([*]u8, &err_code), &size);	2034	EIO => return error.InputOutput,
2967	assert(size == 4);	2035	ENOMEM => return error.SystemResources,
2968	const err = posix.getErrno(rc);	2036	else => \|err\| return unexpectedErrno(err),
2969	switch (err) {
2970	0 => switch (err_code) {
2971	0 => return,
2972	else => return unexpectedErrorPosix(err),
2973
2974	posix.EACCES => return PosixConnectError.PermissionDenied,
2975	posix.EPERM => return PosixConnectError.PermissionDenied,
2976	posix.EADDRINUSE => return PosixConnectError.AddressInUse,
2977	posix.EADDRNOTAVAIL => return PosixConnectError.AddressNotAvailable,
2978	posix.EAFNOSUPPORT => return PosixConnectError.AddressFamilyNotSupported,
2979	posix.EAGAIN => return PosixConnectError.SystemResources,
2980	posix.EALREADY => unreachable, // The socket is nonblocking and a previous connection attempt has not yet been completed.
2981	posix.EBADF => unreachable, // sockfd is not a valid open file descriptor.
2982	posix.ECONNREFUSED => return PosixConnectError.ConnectionRefused,
2983	posix.EFAULT => unreachable, // The socket structure address is outside the user's address space.
2984	posix.EISCONN => unreachable, // The socket is already connected.
2985	posix.ENETUNREACH => return PosixConnectError.NetworkUnreachable,
2986	posix.ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
2987	posix.EPROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
2988	posix.ETIMEDOUT => return PosixConnectError.ConnectionTimedOut,
2989	},
2990	else => return unexpectedErrorPosix(err),
2991	posix.EBADF => unreachable, // The argument sockfd is not a valid file descriptor.
2992	posix.EFAULT => unreachable, // The address pointed to by optval or optlen is not in a valid part of the process address space.
2993	posix.EINVAL => unreachable,
2994	posix.ENOPROTOOPT => unreachable, // The option is unknown at the level indicated.
2995	posix.ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
2996	}	2037	}
2997	}	2038	}
2998		2039
2999	pub const Thread = struct {	2040	pub const PipeError = error{
3000	data: Data,	2041	SystemFdQuotaExceeded,
3001		2042	ProcessFdQuotaExceeded,
3002	pub const use_pthreads = is_posix and builtin.link_libc;	2043	Unexpected,
3003		2044	};
3004	/// Represents a kernel thread handle.
3005	/// May be an integer or a pointer depending on the platform.
3006	/// On Linux and POSIX, this is the same as Id.
3007	pub const Handle = if (use_pthreads)
3008	c.pthread_t
3009	else switch (builtin.os) {
3010	builtin.Os.linux => i32,
3011	builtin.Os.windows => windows.HANDLE,
3012	else => @compileError("Unsupported OS"),
3013	};
3014
3015	/// Represents a unique ID per thread.
3016	/// May be an integer or pointer depending on the platform.
3017	/// On Linux and POSIX, this is the same as Handle.
3018	pub const Id = switch (builtin.os) {
3019	builtin.Os.windows => windows.DWORD,
3020	else => Handle,
3021	};
3022		2045
3023	pub const Data = if (use_pthreads)	2046	/// Creates a unidirectional data channel that can be used for interprocess communication.
3024	struct {	2047	pub fn pipe() PipeError![2]fd_t {
3025	handle: Thread.Handle,	2048	var fds: [2]fd_t = undefined;
3026	mmap_addr: usize,	2049	switch (errno(system.pipe(&fds))) {
3027	mmap_len: usize,	2050	0 => return fds,
3028	}	2051	EINVAL => unreachable, // Invalid parameters to pipe()
3029	else switch (builtin.os) {	2052	EFAULT => unreachable, // Invalid fds pointer
3030	builtin.Os.linux => struct {	2053	ENFILE => return error.SystemFdQuotaExceeded,
3031	handle: Thread.Handle,	2054	EMFILE => return error.ProcessFdQuotaExceeded,
3032	mmap_addr: usize,	2055	else => \|err\| return unexpectedErrno(err),
3033	mmap_len: usize,	2056	}
3034	},	2057	}
3035	builtin.Os.windows => struct {
3036	handle: Thread.Handle,
3037	alloc_start: *c_void,
3038	heap_handle: windows.HANDLE,
3039	},
3040	else => @compileError("Unsupported OS"),
3041	};
3042		2058
3043	/// Returns the ID of the calling thread.	2059	pub fn pipe2(flags: u32) PipeError![2]fd_t {
3044	/// Makes a syscall every time the function is called.	2060	var fds: [2]fd_t = undefined;
3045	/// On Linux and POSIX, this Id is the same as a Handle.	2061	switch (errno(system.pipe2(&fds, flags))) {
3046	pub fn getCurrentId() Id {	2062	0 => return fds,
3047	if (use_pthreads) {	2063	EINVAL => unreachable, // Invalid flags
3048	return c.pthread_self();	2064	EFAULT => unreachable, // Invalid fds pointer
3049	} else	2065	ENFILE => return error.SystemFdQuotaExceeded,
3050	return switch (builtin.os) {	2066	EMFILE => return error.ProcessFdQuotaExceeded,
3051	builtin.Os.linux => linux.gettid(),	2067	else => \|err\| return unexpectedErrno(err),
3052	builtin.Os.windows => windows.GetCurrentThreadId(),
3053	else => @compileError("Unsupported OS"),
3054	};
3055	}
3056
3057	/// Returns the handle of this thread.
3058	/// On Linux and POSIX, this is the same as Id.
3059	/// On Linux, it is possible that the thread spawned with `spawnThread`
3060	/// finishes executing entirely before the clone syscall completes. In this
3061	/// case, this function will return 0 rather than the no-longer-existing thread's
3062	/// pid.
3063	pub fn handle(self: Thread) Handle {
3064	return self.data.handle;
3065	}
3066
3067	pub fn wait(self: *const Thread) void {
3068	if (use_pthreads) {
3069	const err = c.pthread_join(self.data.handle, null);
3070	switch (err) {
3071	0 => {},
3072	posix.EINVAL => unreachable,
3073	posix.ESRCH => unreachable,
3074	posix.EDEADLK => unreachable,
3075	else => unreachable,
3076	}
3077	assert(posix.munmap(self.data.mmap_addr, self.data.mmap_len) == 0);
3078	} else switch (builtin.os) {
3079	builtin.Os.linux => {
3080	while (true) {
3081	const pid_value = @atomicLoad(i32, &self.data.handle, .SeqCst);
3082	if (pid_value == 0) break;
3083	const rc = linux.futex_wait(&self.data.handle, linux.FUTEX_WAIT, pid_value, null);
3084	switch (linux.getErrno(rc)) {
3085	0 => continue,
3086	posix.EINTR => continue,
3087	posix.EAGAIN => continue,
3088	else => unreachable,
3089	}
3090	}
3091	assert(posix.munmap(self.data.mmap_addr, self.data.mmap_len) == 0);
3092	},
3093	builtin.Os.windows => {
3094	assert(windows.WaitForSingleObject(self.data.handle, windows.INFINITE) == windows.WAIT_OBJECT_0);
3095	assert(windows.CloseHandle(self.data.handle) != 0);
3096	assert(windows.HeapFree(self.data.heap_handle, 0, self.data.alloc_start) != 0);
3097	},
3098	else => @compileError("Unsupported OS"),
3099	}
3100	}	2068	}
3101	};	2069	}
3102		2070
3103	pub const SpawnThreadError = error{	2071	pub const SysCtlError = error{
3104	/// A system-imposed limit on the number of threads was encountered.	2072	PermissionDenied,
3105	/// There are a number of limits that may trigger this error:
3106	/// * the RLIMIT_NPROC soft resource limit (set via setrlimit(2)),
3107	/// which limits the number of processes and threads for a real
3108	/// user ID, was reached;
3109	/// * the kernel's system-wide limit on the number of processes and
3110	/// threads, /proc/sys/kernel/threads-max, was reached (see
3111	/// proc(5));
3112	/// * the maximum number of PIDs, /proc/sys/kernel/pid_max, was
3113	/// reached (see proc(5)); or
3114	/// * the PID limit (pids.max) imposed by the cgroup "process num‐
3115	/// ber" (PIDs) controller was reached.
3116	ThreadQuotaExceeded,
3117
3118	/// The kernel cannot allocate sufficient memory to allocate a task structure
3119	/// for the child, or to copy those parts of the caller's context that need to
3120	/// be copied.
3121	SystemResources,	2073	SystemResources,
3122		2074	NameTooLong,
3123	/// Not enough userland memory to spawn the thread.
3124	OutOfMemory,
3125
3126	/// See https://github.com/ziglang/zig/issues/1396
3127	Unexpected,	2075	Unexpected,
3128	};	2076	};
3129		2077
3130	/// caller must call wait on the returned thread	2078	pub fn sysctl(
3131	/// fn startFn(@typeOf(context)) T	2079	name: []const c_int,
3132	/// where T is u8, noreturn, void, or !void	2080	oldp: ?*c_void,
3133	/// caller must call wait on the returned thread	2081	oldlenp: ?*usize,
3134	pub fn spawnThread(context: var, comptime startFn: var) SpawnThreadError!*Thread {	2082	newp: ?*c_void,
3135	if (builtin.single_threaded) @compileError("cannot spawn thread when building in single-threaded mode");	2083	newlen: usize,
3136	// TODO compile-time call graph analysis to determine stack upper bound	2084	) SysCtlError!void {
3137	// https://github.com/ziglang/zig/issues/157	2085	const name_len = math.cast(c_uint, name.len) catch return error.NameTooLong;
3138	const default_stack_size = 8 * 1024 * 1024;	2086	switch (errno(system.sysctl(name.ptr, name_len, oldp, oldlenp, newp, newlen))) {
3139		2087	0 => return,
3140	const Context = @typeOf(context);	2088	EFAULT => unreachable,
3141	comptime assert(@ArgType(@typeOf(startFn), 0) == Context);	2089	EPERM => return error.PermissionDenied,
3142		2090	ENOMEM => return error.SystemResources,
3143	if (builtin.os == builtin.Os.windows) {	2091	else => \|err\| return unexpectedErrno(err),
3144	const WinThread = struct {
3145	const OuterContext = struct {
3146	thread: Thread,
3147	inner: Context,
3148	};
3149	extern fn threadMain(raw_arg: windows.LPVOID) windows.DWORD {
3150	const arg = if (@sizeOf(Context) == 0) {} else @ptrCast(Context, @alignCast(@alignOf(Context), raw_arg)).;
3151	switch (@typeId(@typeOf(startFn).ReturnType)) {
3152	builtin.TypeId.Int => {
3153	return startFn(arg);
3154	},
3155	builtin.TypeId.Void => {
3156	startFn(arg);
3157	return 0;
3158	},
3159	else => @compileError("expected return type of startFn to be 'u8', 'noreturn', 'void', or '!void'"),
3160	}
3161	}
3162	};
3163
3164	const heap_handle = windows.GetProcessHeap() orelse return SpawnThreadError.OutOfMemory;
3165	const byte_count = @alignOf(WinThread.OuterContext) + @sizeOf(WinThread.OuterContext);
3166	const bytes_ptr = windows.HeapAlloc(heap_handle, 0, byte_count) orelse return SpawnThreadError.OutOfMemory;
3167	errdefer assert(windows.HeapFree(heap_handle, 0, bytes_ptr) != 0);
3168	const bytes = @ptrCast([*]u8, bytes_ptr)[0..byte_count];
3169	const outer_context = std.heap.FixedBufferAllocator.init(bytes).allocator.create(WinThread.OuterContext) catch unreachable;
3170	outer_context.* = WinThread.OuterContext{
3171	.thread = Thread{
3172	.data = Thread.Data{
3173	.heap_handle = heap_handle,
3174	.alloc_start = bytes_ptr,
3175	.handle = undefined,
3176	},
3177	},
3178	.inner = context,
3179	};
3180
3181	const parameter = if (@sizeOf(Context) == 0) null else @ptrCast(*c_void, &outer_context.inner);
3182	outer_context.thread.data.handle = windows.CreateThread(null, default_stack_size, WinThread.threadMain, parameter, 0, null) orelse {
3183	const err = windows.GetLastError();
3184	return switch (err) {
3185	else => os.unexpectedErrorWindows(err),
3186	};
3187	};
3188	return &outer_context.thread;
3189	}
3190
3191	const MainFuncs = struct {
3192	extern fn linuxThreadMain(ctx_addr: usize) u8 {
3193	const arg = if (@sizeOf(Context) == 0) {} else @intToPtr(const Context, ctx_addr).;
3194
3195	switch (@typeId(@typeOf(startFn).ReturnType)) {
3196	builtin.TypeId.Int => {
3197	return startFn(arg);
3198	},
3199	builtin.TypeId.Void => {
3200	startFn(arg);
3201	return 0;
3202	},
3203	else => @compileError("expected return type of startFn to be 'u8', 'noreturn', 'void', or '!void'"),
3204	}
3205	}
3206	extern fn posixThreadMain(ctx: ?c_void) ?c_void {
3207	if (@sizeOf(Context) == 0) {
3208	_ = startFn({});
3209	return null;
3210	} else {
3211	_ = startFn(@ptrCast(const Context, @alignCast(@alignOf(Context), ctx)).);
3212	return null;
3213	}
3214	}
3215	};
3216
3217	const MAP_GROWSDOWN = if (builtin.os == builtin.Os.linux) linux.MAP_GROWSDOWN else 0;
3218
3219	var stack_end_offset: usize = undefined;
3220	var thread_start_offset: usize = undefined;
3221	var context_start_offset: usize = undefined;
3222	var tls_start_offset: usize = undefined;
3223	const mmap_len = blk: {
3224	// First in memory will be the stack, which grows downwards.
3225	var l: usize = mem.alignForward(default_stack_size, os.page_size);
3226	stack_end_offset = l;
3227	// Above the stack, so that it can be in the same mmap call, put the Thread object.
3228	l = mem.alignForward(l, @alignOf(Thread));
3229	thread_start_offset = l;
3230	l += @sizeOf(Thread);
3231	// Next, the Context object.
3232	if (@sizeOf(Context) != 0) {
3233	l = mem.alignForward(l, @alignOf(Context));
3234	context_start_offset = l;
3235	l += @sizeOf(Context);
3236	}
3237	// Finally, the Thread Local Storage, if any.
3238	if (!Thread.use_pthreads) {
3239	if (linux.tls.tls_image) \|tls_img\| {
3240	l = mem.alignForward(l, @alignOf(usize));
3241	tls_start_offset = l;
3242	l += tls_img.alloc_size;
3243	}
3244	}
3245	break :blk l;
3246	};
3247	const mmap_addr = posix.mmap(null, mmap_len, posix.PROT_READ \| posix.PROT_WRITE, posix.MAP_PRIVATE \| posix.MAP_ANONYMOUS \| MAP_GROWSDOWN, -1, 0);
3248	if (mmap_addr == posix.MAP_FAILED) return error.OutOfMemory;
3249	errdefer assert(posix.munmap(mmap_addr, mmap_len) == 0);
3250
3251	const thread_ptr = @alignCast(@alignOf(Thread), @intToPtr(*Thread, mmap_addr + thread_start_offset));
3252	thread_ptr.data.mmap_addr = mmap_addr;
3253	thread_ptr.data.mmap_len = mmap_len;
3254
3255	var arg: usize = undefined;
3256	if (@sizeOf(Context) != 0) {
3257	arg = mmap_addr + context_start_offset;
3258	const context_ptr = @alignCast(@alignOf(Context), @intToPtr(*Context, arg));
3259	context_ptr.* = context;
3260	}
3261
3262	if (Thread.use_pthreads) {
3263	// use pthreads
3264	var attr: c.pthread_attr_t = undefined;
3265	if (c.pthread_attr_init(&attr) != 0) return SpawnThreadError.SystemResources;
3266	defer assert(c.pthread_attr_destroy(&attr) == 0);
3267
3268	assert(c.pthread_attr_setstack(&attr, @intToPtr(*c_void, mmap_addr), stack_end_offset) == 0);
3269
3270	const err = c.pthread_create(&thread_ptr.data.handle, &attr, MainFuncs.posixThreadMain, @intToPtr(*c_void, arg));
3271	switch (err) {
3272	0 => return thread_ptr,
3273	posix.EAGAIN => return SpawnThreadError.SystemResources,
3274	posix.EPERM => unreachable,
3275	posix.EINVAL => unreachable,
3276	else => return unexpectedErrorPosix(@intCast(usize, err)),
3277	}
3278	} else if (builtin.os == builtin.Os.linux) {
3279	var flags: u32 = posix.CLONE_VM \| posix.CLONE_FS \| posix.CLONE_FILES \| posix.CLONE_SIGHAND \|
3280	posix.CLONE_THREAD \| posix.CLONE_SYSVSEM \| posix.CLONE_PARENT_SETTID \| posix.CLONE_CHILD_CLEARTID \|
3281	posix.CLONE_DETACHED;
3282	var newtls: usize = undefined;
3283	if (linux.tls.tls_image) \|tls_img\| {
3284	newtls = linux.tls.copyTLS(mmap_addr + tls_start_offset);
3285	flags \|= posix.CLONE_SETTLS;
3286	}
3287	const rc = posix.clone(MainFuncs.linuxThreadMain, mmap_addr + stack_end_offset, flags, arg, &thread_ptr.data.handle, newtls, &thread_ptr.data.handle);
3288	const err = posix.getErrno(rc);
3289	switch (err) {
3290	0 => return thread_ptr,
3291	posix.EAGAIN => return SpawnThreadError.ThreadQuotaExceeded,
3292	posix.EINVAL => unreachable,
3293	posix.ENOMEM => return SpawnThreadError.SystemResources,
3294	posix.ENOSPC => unreachable,
3295	posix.EPERM => unreachable,
3296	posix.EUSERS => unreachable,
3297	else => return unexpectedErrorPosix(err),
3298	}
3299	} else {
3300	@compileError("Unsupported OS");
3301	}	2092	}
3302	}	2093	}
3303		2094
3304	pub fn posixWait(pid: i32) i32 {	2095	pub fn sysctlbynameC(
3305	var status: i32 = undefined;	2096	name: [*]const u8,
3306	while (true) {	2097	oldp: ?*c_void,
3307	const err = posix.getErrno(posix.waitpid(pid, &status, 0));	2098	oldlenp: ?*usize,
3308	switch (err) {	2099	newp: ?*c_void,
3309	0 => return status,	2100	newlen: usize,
3310	posix.EINTR => continue,	2101	) SysCtlError!void {
3311	posix.ECHILD => unreachable, // The process specified does not exist. It would be a race condition to handle this error.	2102	switch (errno(system.sysctlbyname(name, oldp, oldlenp, newp, newlen))) {
3312	posix.EINVAL => unreachable, // The options argument was invalid	2103	0 => return,
3313	else => unreachable,	2104	EFAULT => unreachable,
3314	}	2105	EPERM => return error.PermissionDenied,
		2106	ENOMEM => return error.SystemResources,
		2107	else => \|err\| return unexpectedErrno(err),
3315	}	2108	}
3316	}	2109	}
3317		2110
3318	pub fn posixFStat(fd: i32) !posix.Stat {	2111	pub fn gettimeofday(tv: ?timeval, tz: ?timezone) void {
3319	var stat: posix.Stat = undefined;	2112	switch (errno(system.gettimeofday(tv, tz))) {
3320	const err = posix.getErrno(posix.fstat(fd, &stat));	2113	0 => return,
3321	if (err > 0) {	2114	EINVAL => unreachable,
3322	return switch (err) {	2115	else => unreachable,
3323	// We do not make this an error code because if you get EBADF it's always a bug,
3324	// since the fd could have been reused.
3325	posix.EBADF => unreachable,
3326	posix.ENOMEM => error.SystemResources,
3327	else => os.unexpectedErrorPosix(err),
3328	};
3329	}	2116	}
3330
3331	return stat;
3332	}	2117	}
3333		2118
3334	pub const CpuCountError = error{	2119	pub const SeekError = error{
3335	OutOfMemory,	2120	Unseekable,
3336	PermissionDenied,
3337
3338	/// See https://github.com/ziglang/zig/issues/1396
3339	Unexpected,	2121	Unexpected,
3340	};	2122	};
3341		2123
3342	pub fn cpuCount(fallback_allocator: *mem.Allocator) CpuCountError!usize {	2124	/// Repositions read/write file offset relative to the beginning.
3343	switch (builtin.os) {	2125	pub fn lseek_SET(fd: fd_t, offset: u64) SeekError!void {
3344	builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {	2126	if (linux.is_the_target and !builtin.link_libc and @sizeOf(usize) == 4) {
3345	var count: c_int = undefined;	2127	switch (errno(system.llseek(fd, offset, null, SEEK_SET))) {
3346	var count_len: usize = @sizeOf(c_int);	2128	0 => return,
3347	const rc = posix.sysctlbyname(switch (builtin.os) {	2129	EBADF => unreachable, // always a race condition
3348	builtin.Os.macosx => c"hw.logicalcpu",	2130	EINVAL => return error.Unseekable,
3349	else => c"hw.ncpu",	2131	EOVERFLOW => return error.Unseekable,
3350	}, @ptrCast(*c_void, &count), &count_len, null, 0);	2132	ESPIPE => return error.Unseekable,
3351	const err = posix.getErrno(rc);	2133	ENXIO => return error.Unseekable,
3352	switch (err) {	2134	else => \|err\| return unexpectedErrno(err),
3353	0 => return @intCast(usize, count),	2135	}
3354	posix.EFAULT => unreachable,	2136	}
3355	posix.EINVAL => unreachable,	2137	if (windows.is_the_target) {
3356	posix.ENOMEM => return CpuCountError.OutOfMemory,	2138	return windows.SetFilePointerEx_BEGIN(fd, offset);
3357	posix.ENOTDIR => unreachable,	2139	}
3358	posix.EISDIR => unreachable,	2140	const ipos = @bitCast(i64, offset); // the OS treats this as unsigned
3359	posix.ENOENT => unreachable,	2141	switch (errno(system.lseek(fd, ipos, SEEK_SET))) {
3360	posix.EPERM => unreachable,	2142	0 => return,
3361	else => return os.unexpectedErrorPosix(err),	2143	EBADF => unreachable, // always a race condition
3362	}	2144	EINVAL => return error.Unseekable,
3363	},	2145	EOVERFLOW => return error.Unseekable,
3364	builtin.Os.linux => {	2146	ESPIPE => return error.Unseekable,
3365	const usize_count = 16;	2147	ENXIO => return error.Unseekable,
3366	const allocator = std.heap.stackFallback(usize_count * @sizeOf(usize), fallback_allocator).get();	2148	else => \|err\| return unexpectedErrno(err),
3367
3368	var set = try allocator.alloc(usize, usize_count);
3369	defer allocator.free(set);
3370
3371	while (true) {
3372	const rc = posix.sched_getaffinity(0, set);
3373	const err = posix.getErrno(rc);
3374	switch (err) {
3375	0 => {
3376	if (rc < set.len * @sizeOf(usize)) {
3377	const result = set[0 .. rc / @sizeOf(usize)];
3378	var sum: usize = 0;
3379	for (result) \|x\| {
3380	sum += @popCount(usize, x);
3381	}
3382	return sum;
3383	} else {
3384	set = try allocator.realloc(set, set.len * 2);
3385	continue;
3386	}
3387	},
3388	posix.EFAULT => unreachable,
3389	posix.EINVAL => unreachable,
3390	posix.EPERM => return CpuCountError.PermissionDenied,
3391	posix.ESRCH => unreachable,
3392	else => return os.unexpectedErrorPosix(err),
3393	}
3394	}
3395	},
3396	builtin.Os.windows => {
3397	var system_info: windows.SYSTEM_INFO = undefined;
3398	windows.GetSystemInfo(&system_info);
3399	return @intCast(usize, system_info.dwNumberOfProcessors);
3400	},
3401	else => @compileError("unsupported OS"),
3402	}	2149	}
3403	}	2150	}
3404		2151
3405	pub const BsdKQueueError = error{	2152	/// Repositions read/write file offset relative to the current offset.
3406	/// The per-process limit on the number of open file descriptors has been reached.	2153	pub fn lseek_CUR(fd: fd_t, offset: i64) SeekError!void {
3407	ProcessFdQuotaExceeded,	2154	if (linux.is_the_target and !builtin.link_libc and @sizeOf(usize) == 4) {
3408		2155	switch (errno(system.llseek(fd, @bitCast(u64, offset), null, SEEK_CUR))) {
3409	/// The system-wide limit on the total number of open files has been reached.	2156	0 => return,
3410	SystemFdQuotaExceeded,	2157	EBADF => unreachable, // always a race condition
		2158	EINVAL => return error.Unseekable,
		2159	EOVERFLOW => return error.Unseekable,
		2160	ESPIPE => return error.Unseekable,
		2161	ENXIO => return error.Unseekable,
		2162	else => \|err\| return unexpectedErrno(err),
		2163	}
		2164	}
		2165	if (windows.is_the_target) {
		2166	return windows.SetFilePointerEx_CURRENT(fd, offset);
		2167	}
		2168	switch (errno(system.lseek(fd, offset, SEEK_CUR))) {
		2169	0 => return,
		2170	EBADF => unreachable, // always a race condition
		2171	EINVAL => return error.Unseekable,
		2172	EOVERFLOW => return error.Unseekable,
		2173	ESPIPE => return error.Unseekable,
		2174	ENXIO => return error.Unseekable,
		2175	else => \|err\| return unexpectedErrno(err),
		2176	}
		2177	}
3411		2178
3412	/// See https://github.com/ziglang/zig/issues/1396	2179	/// Repositions read/write file offset relative to the end.
3413	Unexpected,	2180	pub fn lseek_END(fd: fd_t, offset: i64) SeekError!void {
3414	};	2181	if (linux.is_the_target and !builtin.link_libc and @sizeOf(usize) == 4) {
		2182	switch (errno(system.llseek(fd, @bitCast(u64, offset), null, SEEK_END))) {
		2183	EBADF => unreachable, // always a race condition
		2184	EINVAL => return error.Unseekable,
		2185	EOVERFLOW => return error.Unseekable,
		2186	ESPIPE => return error.Unseekable,
		2187	ENXIO => return error.Unseekable,
		2188	else => \|err\| return unexpectedErrno(err),
		2189	}
		2190	}
		2191	if (windows.is_the_target) {
		2192	return windows.SetFilePointerEx_END(fd, offset);
		2193	}
		2194	switch (errno(system.lseek(fd, offset, SEEK_END))) {
		2195	0 => return,
		2196	EBADF => unreachable, // always a race condition
		2197	EINVAL => return error.Unseekable,
		2198	EOVERFLOW => return error.Unseekable,
		2199	ESPIPE => return error.Unseekable,
		2200	ENXIO => return error.Unseekable,
		2201	else => \|err\| return unexpectedErrno(err),
		2202	}
		2203	}
3415		2204
3416	pub fn bsdKQueue() BsdKQueueError!i32 {	2205	/// Returns the read/write file offset relative to the beginning.
3417	const rc = posix.kqueue();	2206	pub fn lseek_CUR_get(fd: fd_t) SeekError!u64 {
3418	const err = posix.getErrno(rc);	2207	if (linux.is_the_target and !builtin.link_libc and @sizeOf(usize) == 4) {
3419	switch (err) {	2208	var result: u64 = undefined;
3420	0 => return @intCast(i32, rc),	2209	switch (errno(system.llseek(fd, 0, &result, SEEK_CUR))) {
3421	posix.EMFILE => return BsdKQueueError.ProcessFdQuotaExceeded,	2210	0 => return result,
3422	posix.ENFILE => return BsdKQueueError.SystemFdQuotaExceeded,	2211	EBADF => unreachable, // always a race condition
3423	else => return unexpectedErrorPosix(err),	2212	EINVAL => return error.Unseekable,
		2213	EOVERFLOW => return error.Unseekable,
		2214	ESPIPE => return error.Unseekable,
		2215	ENXIO => return error.Unseekable,
		2216	else => \|err\| return unexpectedErrno(err),
		2217	}
		2218	}
		2219	if (windows.is_the_target) {
		2220	return windows.SetFilePointerEx_CURRENT_get(fd);
		2221	}
		2222	const rc = system.lseek(fd, 0, SEEK_CUR);
		2223	switch (errno(rc)) {
		2224	0 => return @bitCast(u64, rc),
		2225	EBADF => unreachable, // always a race condition
		2226	EINVAL => return error.Unseekable,
		2227	EOVERFLOW => return error.Unseekable,
		2228	ESPIPE => return error.Unseekable,
		2229	ENXIO => return error.Unseekable,
		2230	else => \|err\| return unexpectedErrno(err),
3424	}	2231	}
3425	}	2232	}
3426		2233
3427	pub const BsdKEventError = error{	2234	pub const RealPathError = error{
3428	/// The process does not have permission to register a filter.	2235	FileNotFound,
3429	AccessDenied,	2236	AccessDenied,
		2237	NameTooLong,
		2238	NotSupported,
		2239	NotDir,
		2240	SymLinkLoop,
		2241	InputOutput,
		2242	FileTooBig,
		2243	IsDir,
		2244	ProcessFdQuotaExceeded,
		2245	SystemFdQuotaExceeded,
		2246	NoDevice,
		2247	SystemResources,
		2248	NoSpaceLeft,
		2249	FileSystem,
		2250	BadPathName,
		2251	DeviceBusy,
3430		2252
3431	/// The event could not be found to be modified or deleted.	2253	SharingViolation,
3432	EventNotFound,	2254	PipeBusy,
3433		2255
3434	/// No memory was available to register the event.	2256	/// On Windows, file paths must be valid Unicode.
3435	SystemResources,	2257	InvalidUtf8,
3436		2258
3437	/// The specified process to attach to does not exist.	2259	PathAlreadyExists,
3438	ProcessNotFound,	2260
		2261	Unexpected,
3439	};	2262	};
3440		2263
3441	pub fn bsdKEvent(	2264	/// Return the canonicalized absolute pathname.
3442	kq: i32,	2265	/// Expands all symbolic links and resolves references to `.`, `..`, and
3443	changelist: []const posix.Kevent,	2266	/// extra `/` characters in `pathname`.
3444	eventlist: []posix.Kevent,	2267	/// The return value is a slice of `out_buffer`, but not necessarily from the beginning.
3445	timeout: ?*const posix.timespec,	2268	/// See also `realpathC` and `realpathW`.
3446	) BsdKEventError!usize {	2269	pub fn realpath(pathname: []const u8, out_buffer: *[MAX_PATH_BYTES]u8) RealPathError![]u8 {
		2270	if (windows.is_the_target) {
		2271	const pathname_w = try windows.sliceToPrefixedFileW(pathname);
		2272	return realpathW(&pathname_w, out_buffer);
		2273	}
		2274	const pathname_c = try toPosixPath(pathname);
		2275	return realpathC(&pathname_c, out_buffer);
		2276	}
		2277
		2278	/// Same as `realpath` except `pathname` is null-terminated.
		2279	pub fn realpathC(pathname: []const u8, out_buffer: [MAX_PATH_BYTES]u8) RealPathError![]u8 {
		2280	if (windows.is_the_target) {
		2281	const pathname_w = try windows.cStrToPrefixedFileW(pathname);
		2282	return realpathW(&pathname_w, out_buffer);
		2283	}
		2284	if (linux.is_the_target and !builtin.link_libc) {
		2285	const fd = try openC(pathname, linux.O_PATH \| linux.O_NONBLOCK \| linux.O_CLOEXEC, 0);
		2286	defer close(fd);
		2287
		2288	var procfs_buf: ["/proc/self/fd/-2147483648\x00".len]u8 = undefined;
		2289	const proc_path = std.fmt.bufPrint(procfs_buf[0..], "/proc/self/fd/{}\x00", fd) catch unreachable;
		2290
		2291	return readlinkC(proc_path.ptr, out_buffer);
		2292	}
		2293	const result_path = std.c.realpath(pathname, out_buffer) orelse switch (std.c._errno().*) {
		2294	EINVAL => unreachable,
		2295	EBADF => unreachable,
		2296	EFAULT => unreachable,
		2297	EACCES => return error.AccessDenied,
		2298	ENOENT => return error.FileNotFound,
		2299	ENOTSUP => return error.NotSupported,
		2300	ENOTDIR => return error.NotDir,
		2301	ENAMETOOLONG => return error.NameTooLong,
		2302	ELOOP => return error.SymLinkLoop,
		2303	EIO => return error.InputOutput,
		2304	else => \|err\| return unexpectedErrno(@intCast(usize, err)),
		2305	};
		2306	return mem.toSlice(u8, result_path);
		2307	}
		2308
		2309	/// Same as `realpath` except `pathname` is null-terminated and UTF16LE-encoded.
		2310	pub fn realpathW(pathname: []const u16, out_buffer: [MAX_PATH_BYTES]u8) RealPathError![]u8 {
		2311	const h_file = try windows.CreateFileW(
		2312	pathname,
		2313	windows.GENERIC_READ,
		2314	windows.FILE_SHARE_READ,
		2315	null,
		2316	windows.OPEN_EXISTING,
		2317	windows.FILE_ATTRIBUTE_NORMAL,
		2318	null,
		2319	);
		2320	defer windows.CloseHandle(h_file);
		2321
		2322	var wide_buf: [windows.PATH_MAX_WIDE]u16 = undefined;
		2323	const wide_len = try windows.GetFinalPathNameByHandleW(h_file, &wide_buf, wide_buf.len, windows.VOLUME_NAME_DOS);
		2324	assert(wide_len <= wide_buf.len);
		2325	const wide_slice = wide_buf[0..wide_len];
		2326
		2327	// Windows returns \\?\ prepended to the path.
		2328	// We strip it to make this function consistent across platforms.
		2329	const prefix = []u16{ '\\', '\\', '?', '\\' };
		2330	const start_index = if (mem.startsWith(u16, wide_slice, prefix)) prefix.len else 0;
		2331
		2332	// Trust that Windows gives us valid UTF-16LE.
		2333	const end_index = std.unicode.utf16leToUtf8(out_buffer, wide_slice[start_index..]) catch unreachable;
		2334	return out_buffer[0..end_index];
		2335	}
		2336
		2337	/// Spurious wakeups are possible and no precision of timing is guaranteed.
		2338	pub fn nanosleep(seconds: u64, nanoseconds: u64) void {
		2339	var req = timespec{
		2340	.tv_sec = math.cast(isize, seconds) catch math.maxInt(isize),
		2341	.tv_nsec = math.cast(isize, nanoseconds) catch math.maxInt(isize),
		2342	};
		2343	var rem: timespec = undefined;
3447	while (true) {	2344	while (true) {
3448	const rc = posix.kevent(kq, changelist, eventlist, timeout);	2345	switch (errno(system.nanosleep(&req, &rem))) {
3449	const err = posix.getErrno(rc);	2346	EFAULT => unreachable,
3450	switch (err) {	2347	EINVAL => {
3451	0 => return rc,	2348	// Sometimes Darwin returns EINVAL for no reason.
3452	posix.EACCES => return BsdKEventError.AccessDenied,	2349	// We treat it as a spurious wakeup.
3453	posix.EFAULT => unreachable,	2350	return;
3454	posix.EBADF => unreachable,	2351	},
3455	posix.EINTR => continue,	2352	EINTR => {
3456	posix.EINVAL => unreachable,	2353	req = rem;
3457	posix.ENOENT => return BsdKEventError.EventNotFound,	2354	continue;
3458	posix.ENOMEM => return BsdKEventError.SystemResources,	2355	},
3459	posix.ESRCH => return BsdKEventError.ProcessNotFound,	2356	// This prong handles success as well as unexpected errors.
3460	else => unreachable,	2357	else => return,
3461	}	2358	}
3462	}	2359	}
3463	}	2360	}
3464		2361
3465	pub fn linuxINotifyInit1(flags: u32) !i32 {	2362	pub const ClockGetTimeError = error{
3466	const rc = linux.inotify_init1(flags);	2363	UnsupportedClock,
3467	const err = posix.getErrno(rc);	2364	Unexpected,
3468	switch (err) {	2365	};
3469	0 => return @intCast(i32, rc),	2366
3470	posix.EINVAL => unreachable,	2367	pub fn clock_gettime(clk_id: i32, tp: *timespec) ClockGetTimeError!void {
3471	posix.EMFILE => return error.ProcessFdQuotaExceeded,	2368	switch (errno(system.clock_gettime(clk_id, tp))) {
3472	posix.ENFILE => return error.SystemFdQuotaExceeded,	2369	0 => return,
3473	posix.ENOMEM => return error.SystemResources,	2370	EFAULT => unreachable,
3474	else => return unexpectedErrorPosix(err),	2371	EINVAL => return error.UnsupportedClock,
		2372	else => \|err\| return unexpectedErrno(err),
3475	}	2373	}
3476	}	2374	}
3477		2375
3478	pub fn linuxINotifyAddWatchC(inotify_fd: i32, pathname: [*]const u8, mask: u32) !i32 {	2376	pub fn clock_getres(clk_id: i32, res: *timespec) ClockGetTimeError!void {
3479	const rc = linux.inotify_add_watch(inotify_fd, pathname, mask);	2377	switch (errno(system.clock_getres(clk_id, res))) {
3480	const err = posix.getErrno(rc);	2378	0 => return,
3481	switch (err) {	2379	EFAULT => unreachable,
3482	0 => return @intCast(i32, rc),	2380	EINVAL => return error.UnsupportedClock,
3483	posix.EACCES => return error.AccessDenied,	2381	else => \|err\| return unexpectedErrno(err),
3484	posix.EBADF => unreachable,
3485	posix.EFAULT => unreachable,
3486	posix.EINVAL => unreachable,
3487	posix.ENAMETOOLONG => return error.NameTooLong,
3488	posix.ENOENT => return error.FileNotFound,
3489	posix.ENOMEM => return error.SystemResources,
3490	posix.ENOSPC => return error.UserResourceLimitReached,
3491	else => return unexpectedErrorPosix(err),
3492	}	2382	}
3493	}	2383	}
3494		2384
3495	pub fn linuxINotifyRmWatch(inotify_fd: i32, wd: i32) !void {	2385	pub const SchedGetAffinityError = error{
3496	const rc = linux.inotify_rm_watch(inotify_fd, wd);	2386	PermissionDenied,
3497	const err = posix.getErrno(rc);	2387	Unexpected,
3498	switch (err) {	2388	};
3499	0 => return rc,	2389
3500	posix.EBADF => unreachable,	2390	pub fn sched_getaffinity(pid: pid_t) SchedGetAffinityError!cpu_set_t {
3501	posix.EINVAL => unreachable,	2391	var set: cpu_set_t = undefined;
3502	else => unreachable,	2392	switch (errno(system.sched_getaffinity(pid, @sizeOf(cpu_set_t), &set))) {
		2393	0 => return set,
		2394	EFAULT => unreachable,
		2395	EINVAL => unreachable,
		2396	ESRCH => unreachable,
		2397	EPERM => return error.PermissionDenied,
		2398	else => \|err\| return unexpectedErrno(err),
3503	}	2399	}
3504	}	2400	}
3505		2401
3506	pub const MProtectError = error{	2402	/// Used to convert a slice to a null terminated slice on the stack.
3507	AccessDenied,	2403	/// TODO https://github.com/ziglang/zig/issues/287
3508	OutOfMemory,	2404	pub fn toPosixPath(file_path: []const u8) ![PATH_MAX]u8 {
		2405	var path_with_null: [PATH_MAX]u8 = undefined;
		2406	// >= rather than > to make room for the null byte
		2407	if (file_path.len >= PATH_MAX) return error.NameTooLong;
		2408	mem.copy(u8, &path_with_null, file_path);
		2409	path_with_null[file_path.len] = 0;
		2410	return path_with_null;
		2411	}
		2412
		2413	/// Whether or not error.Unexpected will print its value and a stack trace.
		2414	/// if this happens the fix is to add the error code to the corresponding
		2415	/// switch expression, possibly introduce a new error in the error set, and
		2416	/// send a patch to Zig.
		2417	pub const unexpected_error_tracing = builtin.mode == .Debug;
		2418
		2419	pub const UnexpectedError = error{
		2420	/// The Operating System returned an undocumented error code.
		2421	/// This error is in theory not possible, but it would be better
		2422	/// to handle this error than to invoke undefined behavior.
3509	Unexpected,	2423	Unexpected,
3510	};	2424	};
3511		2425
3512	/// address and length must be page-aligned	2426	/// Call this when you made a syscall or something that sets errno
3513	pub fn posixMProtect(address: usize, length: usize, protection: u32) MProtectError!void {	2427	/// and you get an unexpected error.
3514	const negative_page_size = @bitCast(usize, -isize(page_size));	2428	pub fn unexpectedErrno(err: usize) UnexpectedError {
3515	const aligned_address = address & negative_page_size;	2429	if (unexpected_error_tracing) {
3516	const aligned_end = (address + length + page_size - 1) & negative_page_size;	2430	std.debug.warn("unexpected errno: {}\n", err);
3517	assert(address == aligned_address);	2431	std.debug.dumpCurrentStackTrace(null);
3518	assert(length == aligned_end - aligned_address);
3519	const rc = posix.mprotect(address, length, protection);
3520	const err = posix.getErrno(rc);
3521	switch (err) {
3522	0 => return,
3523	posix.EINVAL => unreachable,
3524	posix.EACCES => return error.AccessDenied,
3525	posix.ENOMEM => return error.OutOfMemory,
3526	else => return unexpectedErrorPosix(err),
3527	}	2432	}
		2433	return error.Unexpected;
		2434	}
		2435
		2436	test "" {
		2437	_ = @import("os/darwin.zig");
		2438	_ = @import("os/freebsd.zig");
		2439	_ = @import("os/linux.zig");
		2440	_ = @import("os/netbsd.zig");
		2441	_ = @import("os/uefi.zig");
		2442	_ = @import("os/wasi.zig");
		2443	_ = @import("os/windows.zig");
		2444	_ = @import("os/zen.zig");
		2445
		2446	_ = @import("os/test.zig");
3528	}	2447	}

std/os/bits.zig created+27

...	@@ -0,0 +1,27 @@
1	// Platform-dependent types and values that are used along with OS-specific APIs.
2	// These are imported into `std.c`, `std.os`, and `std.os.linux`.
3
4	const builtin = @import("builtin");
5
6	pub use switch (builtin.os) {
7	.macosx, .ios, .tvos, .watchos => @import("bits/darwin.zig"),
8	.freebsd => @import("bits/freebsd.zig"),
9	.linux => @import("bits/linux.zig"),
10	.netbsd => @import("bits/netbsd.zig"),
11	.wasi => @import("bits/wasi.zig"),
12	.windows => @import("bits/windows.zig"),
13	else => struct {},
14	};
15
16	pub const pthread_t = *@OpaqueType();
17	pub const FILE = @OpaqueType();
18
19	pub const iovec = extern struct {
20	iov_base: [*]u8,
21	iov_len: usize,
22	};
23
24	pub const iovec_const = extern struct {
25	iov_base: [*]const u8,
26	iov_len: usize,
27	};

std/os/bits/darwin.zig created+1080

...	@@ -0,0 +1,1080 @@
1	const std = @import("../../std.zig");
2	const assert = std.debug.assert;
3	const maxInt = std.math.maxInt;
4
5	pub const fd_t = c_int;
6	pub const pid_t = c_int;
7
8	pub const in_port_t = u16;
9	pub const sa_family_t = u8;
10	pub const socklen_t = u32;
11	pub const sockaddr = extern union {
12	in: sockaddr_in,
13	in6: sockaddr_in6,
14	};
15	pub const sockaddr_in = extern struct {
16	len: u8,
17	family: sa_family_t,
18	port: in_port_t,
19	addr: u32,
20	zero: [8]u8,
21	};
22	pub const sockaddr_in6 = extern struct {
23	len: u8,
24	family: sa_family_t,
25	port: in_port_t,
26	flowinfo: u32,
27	addr: [16]u8,
28	scope_id: u32,
29	};
30
31	pub const timeval = extern struct {
32	tv_sec: c_long,
33	tv_usec: i32,
34	};
35
36	pub const timezone = extern struct {
37	tz_minuteswest: i32,
38	tz_dsttime: i32,
39	};
40
41	pub const mach_timebase_info_data = extern struct {
42	numer: u32,
43	denom: u32,
44	};
45
46	/// Renamed to Stat to not conflict with the stat function.
47	pub const Stat = extern struct {
48	dev: i32,
49	mode: u16,
50	nlink: u16,
51	ino: u64,
52	uid: u32,
53	gid: u32,
54	rdev: i32,
55	atime: usize,
56	atimensec: usize,
57	mtime: usize,
58	mtimensec: usize,
59	ctime: usize,
60	ctimensec: usize,
61	birthtime: usize,
62	birthtimensec: usize,
63	size: i64,
64	blocks: i64,
65	blksize: i32,
66	flags: u32,
67	gen: u32,
68	lspare: i32,
69	qspare: [2]i64,
70	};
71
72	pub const timespec = extern struct {
73	tv_sec: isize,
74	tv_nsec: isize,
75	};
76
77	pub const sigset_t = u32;
78	pub const empty_sigset = sigset_t(0);
79
80	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with function name.
81	pub const Sigaction = extern struct {
82	handler: extern fn (c_int) void,
83	sa_mask: sigset_t,
84	sa_flags: c_int,
85	};
86
87	pub const dirent = extern struct {
88	d_ino: usize,
89	d_seekoff: usize,
90	d_reclen: u16,
91	d_namlen: u16,
92	d_type: u8,
93	d_name: u8, // field address is address of first byte of name
94	};
95
96	pub const pthread_attr_t = extern struct {
97	__sig: c_long,
98	__opaque: [56]u8,
99	};
100
101	/// Renamed from `kevent` to `Kevent` to avoid conflict with function name.
102	pub const Kevent = extern struct {
103	ident: usize,
104	filter: i16,
105	flags: u16,
106	fflags: u32,
107	data: isize,
108	udata: usize,
109	};
110
111	// sys/types.h on macos uses #pragma pack(4) so these checks are
112	// to make sure the struct is laid out the same. These values were
113	// produced from C code using the offsetof macro.
114	comptime {
115	assert(@byteOffsetOf(Kevent, "ident") == 0);
116	assert(@byteOffsetOf(Kevent, "filter") == 8);
117	assert(@byteOffsetOf(Kevent, "flags") == 10);
118	assert(@byteOffsetOf(Kevent, "fflags") == 12);
119	assert(@byteOffsetOf(Kevent, "data") == 16);
120	assert(@byteOffsetOf(Kevent, "udata") == 24);
121	}
122
123	pub const kevent64_s = extern struct {
124	ident: u64,
125	filter: i16,
126	flags: u16,
127	fflags: u32,
128	data: i64,
129	udata: u64,
130	ext: [2]u64,
131	};
132
133	// sys/types.h on macos uses #pragma pack() so these checks are
134	// to make sure the struct is laid out the same. These values were
135	// produced from C code using the offsetof macro.
136	comptime {
137	assert(@byteOffsetOf(kevent64_s, "ident") == 0);
138	assert(@byteOffsetOf(kevent64_s, "filter") == 8);
139	assert(@byteOffsetOf(kevent64_s, "flags") == 10);
140	assert(@byteOffsetOf(kevent64_s, "fflags") == 12);
141	assert(@byteOffsetOf(kevent64_s, "data") == 16);
142	assert(@byteOffsetOf(kevent64_s, "udata") == 24);
143	assert(@byteOffsetOf(kevent64_s, "ext") == 32);
144	}
145
146	pub const mach_port_t = c_uint;
147	pub const clock_serv_t = mach_port_t;
148	pub const clock_res_t = c_int;
149	pub const mach_port_name_t = natural_t;
150	pub const natural_t = c_uint;
151	pub const mach_timespec_t = extern struct {
152	tv_sec: c_uint,
153	tv_nsec: clock_res_t,
154	};
155	pub const kern_return_t = c_int;
156	pub const host_t = mach_port_t;
157	pub const CALENDAR_CLOCK = 1;
158
159	pub const PATH_MAX = 1024;
160
161	pub const STDIN_FILENO = 0;
162	pub const STDOUT_FILENO = 1;
163	pub const STDERR_FILENO = 2;
164
165	/// [MC2] no permissions
166	pub const PROT_NONE = 0x00;
167
168	/// [MC2] pages can be read
169	pub const PROT_READ = 0x01;
170
171	/// [MC2] pages can be written
172	pub const PROT_WRITE = 0x02;
173
174	/// [MC2] pages can be executed
175	pub const PROT_EXEC = 0x04;
176
177	/// allocated from memory, swap space
178	pub const MAP_ANONYMOUS = 0x1000;
179
180	/// map from file (default)
181	pub const MAP_FILE = 0x0000;
182
183	/// interpret addr exactly
184	pub const MAP_FIXED = 0x0010;
185
186	/// region may contain semaphores
187	pub const MAP_HASSEMAPHORE = 0x0200;
188
189	/// changes are private
190	pub const MAP_PRIVATE = 0x0002;
191
192	/// share changes
193	pub const MAP_SHARED = 0x0001;
194
195	/// don't cache pages for this mapping
196	pub const MAP_NOCACHE = 0x0400;
197
198	/// don't reserve needed swap area
199	pub const MAP_NORESERVE = 0x0040;
200	pub const MAP_FAILED = @intToPtr(*c_void, maxInt(usize));
201
202	/// [XSI] no hang in wait/no child to reap
203	pub const WNOHANG = 0x00000001;
204
205	/// [XSI] notify on stop, untraced child
206	pub const WUNTRACED = 0x00000002;
207
208	/// take signal on signal stack
209	pub const SA_ONSTACK = 0x0001;
210
211	/// restart system on signal return
212	pub const SA_RESTART = 0x0002;
213
214	/// reset to SIG_DFL when taking signal
215	pub const SA_RESETHAND = 0x0004;
216
217	/// do not generate SIGCHLD on child stop
218	pub const SA_NOCLDSTOP = 0x0008;
219
220	/// don't mask the signal we're delivering
221	pub const SA_NODEFER = 0x0010;
222
223	/// don't keep zombies around
224	pub const SA_NOCLDWAIT = 0x0020;
225
226	/// signal handler with SA_SIGINFO args
227	pub const SA_SIGINFO = 0x0040;
228
229	/// do not bounce off kernel's sigtramp
230	pub const SA_USERTRAMP = 0x0100;
231
232	/// signal handler with SA_SIGINFO args with 64bit regs information
233	pub const SA_64REGSET = 0x0200;
234
235	pub const O_LARGEFILE = 0x0000;
236	pub const O_PATH = 0x0000;
237
238	pub const F_OK = 0;
239	pub const X_OK = 1;
240	pub const W_OK = 2;
241	pub const R_OK = 4;
242
243	/// open for reading only
244	pub const O_RDONLY = 0x0000;
245
246	/// open for writing only
247	pub const O_WRONLY = 0x0001;
248
249	/// open for reading and writing
250	pub const O_RDWR = 0x0002;
251
252	/// do not block on open or for data to become available
253	pub const O_NONBLOCK = 0x0004;
254
255	/// append on each write
256	pub const O_APPEND = 0x0008;
257
258	/// create file if it does not exist
259	pub const O_CREAT = 0x0200;
260
261	/// truncate size to 0
262	pub const O_TRUNC = 0x0400;
263
264	/// error if O_CREAT and the file exists
265	pub const O_EXCL = 0x0800;
266
267	/// atomically obtain a shared lock
268	pub const O_SHLOCK = 0x0010;
269
270	/// atomically obtain an exclusive lock
271	pub const O_EXLOCK = 0x0020;
272
273	/// do not follow symlinks
274	pub const O_NOFOLLOW = 0x0100;
275
276	/// allow open of symlinks
277	pub const O_SYMLINK = 0x200000;
278
279	/// descriptor requested for event notifications only
280	pub const O_EVTONLY = 0x8000;
281
282	/// mark as close-on-exec
283	pub const O_CLOEXEC = 0x1000000;
284
285	pub const O_ACCMODE = 3;
286	pub const O_ALERT = 536870912;
287	pub const O_ASYNC = 64;
288	pub const O_DIRECTORY = 1048576;
289	pub const O_DP_GETRAWENCRYPTED = 1;
290	pub const O_DP_GETRAWUNENCRYPTED = 2;
291	pub const O_DSYNC = 4194304;
292	pub const O_FSYNC = O_SYNC;
293	pub const O_NOCTTY = 131072;
294	pub const O_POPUP = 2147483648;
295	pub const O_SYNC = 128;
296
297	pub const SEEK_SET = 0x0;
298	pub const SEEK_CUR = 0x1;
299	pub const SEEK_END = 0x2;
300
301	pub const DT_UNKNOWN = 0;
302	pub const DT_FIFO = 1;
303	pub const DT_CHR = 2;
304	pub const DT_DIR = 4;
305	pub const DT_BLK = 6;
306	pub const DT_REG = 8;
307	pub const DT_LNK = 10;
308	pub const DT_SOCK = 12;
309	pub const DT_WHT = 14;
310
311	/// block specified signal set
312	pub const SIG_BLOCK = 1;
313
314	/// unblock specified signal set
315	pub const SIG_UNBLOCK = 2;
316
317	/// set specified signal set
318	pub const SIG_SETMASK = 3;
319
320	/// hangup
321	pub const SIGHUP = 1;
322
323	/// interrupt
324	pub const SIGINT = 2;
325
326	/// quit
327	pub const SIGQUIT = 3;
328
329	/// illegal instruction (not reset when caught)
330	pub const SIGILL = 4;
331
332	/// trace trap (not reset when caught)
333	pub const SIGTRAP = 5;
334
335	/// abort()
336	pub const SIGABRT = 6;
337
338	/// pollable event ([XSR] generated, not supported)
339	pub const SIGPOLL = 7;
340
341	/// compatibility
342	pub const SIGIOT = SIGABRT;
343
344	/// EMT instruction
345	pub const SIGEMT = 7;
346
347	/// floating point exception
348	pub const SIGFPE = 8;
349
350	/// kill (cannot be caught or ignored)
351	pub const SIGKILL = 9;
352
353	/// bus error
354	pub const SIGBUS = 10;
355
356	/// segmentation violation
357	pub const SIGSEGV = 11;
358
359	/// bad argument to system call
360	pub const SIGSYS = 12;
361
362	/// write on a pipe with no one to read it
363	pub const SIGPIPE = 13;
364
365	/// alarm clock
366	pub const SIGALRM = 14;
367
368	/// software termination signal from kill
369	pub const SIGTERM = 15;
370
371	/// urgent condition on IO channel
372	pub const SIGURG = 16;
373
374	/// sendable stop signal not from tty
375	pub const SIGSTOP = 17;
376
377	/// stop signal from tty
378	pub const SIGTSTP = 18;
379
380	/// continue a stopped process
381	pub const SIGCONT = 19;
382
383	/// to parent on child stop or exit
384	pub const SIGCHLD = 20;
385
386	/// to readers pgrp upon background tty read
387	pub const SIGTTIN = 21;
388
389	/// like TTIN for output if (tp->t_local&LTOSTOP)
390	pub const SIGTTOU = 22;
391
392	/// input/output possible signal
393	pub const SIGIO = 23;
394
395	/// exceeded CPU time limit
396	pub const SIGXCPU = 24;
397
398	/// exceeded file size limit
399	pub const SIGXFSZ = 25;
400
401	/// virtual time alarm
402	pub const SIGVTALRM = 26;
403
404	/// profiling time alarm
405	pub const SIGPROF = 27;
406
407	/// window size changes
408	pub const SIGWINCH = 28;
409
410	/// information request
411	pub const SIGINFO = 29;
412
413	/// user defined signal 1
414	pub const SIGUSR1 = 30;
415
416	/// user defined signal 2
417	pub const SIGUSR2 = 31;
418
419	/// no flag value
420	pub const KEVENT_FLAG_NONE = 0x000;
421
422	/// immediate timeout
423	pub const KEVENT_FLAG_IMMEDIATE = 0x001;
424
425	/// output events only include change
426	pub const KEVENT_FLAG_ERROR_EVENTS = 0x002;
427
428	/// add event to kq (implies enable)
429	pub const EV_ADD = 0x0001;
430
431	/// delete event from kq
432	pub const EV_DELETE = 0x0002;
433
434	/// enable event
435	pub const EV_ENABLE = 0x0004;
436
437	/// disable event (not reported)
438	pub const EV_DISABLE = 0x0008;
439
440	/// only report one occurrence
441	pub const EV_ONESHOT = 0x0010;
442
443	/// clear event state after reporting
444	pub const EV_CLEAR = 0x0020;
445
446	/// force immediate event output
447	/// ... with or without EV_ERROR
448	/// ... use KEVENT_FLAG_ERROR_EVENTS
449	/// on syscalls supporting flags
450	pub const EV_RECEIPT = 0x0040;
451
452	/// disable event after reporting
453	pub const EV_DISPATCH = 0x0080;
454
455	/// unique kevent per udata value
456	pub const EV_UDATA_SPECIFIC = 0x0100;
457
458	/// ... in combination with EV_DELETE
459	/// will defer delete until udata-specific
460	/// event enabled. EINPROGRESS will be
461	/// returned to indicate the deferral
462	pub const EV_DISPATCH2 = EV_DISPATCH \| EV_UDATA_SPECIFIC;
463
464	/// report that source has vanished
465	/// ... only valid with EV_DISPATCH2
466	pub const EV_VANISHED = 0x0200;
467
468	/// reserved by system
469	pub const EV_SYSFLAGS = 0xF000;
470
471	/// filter-specific flag
472	pub const EV_FLAG0 = 0x1000;
473
474	/// filter-specific flag
475	pub const EV_FLAG1 = 0x2000;
476
477	/// EOF detected
478	pub const EV_EOF = 0x8000;
479
480	/// error, data contains errno
481	pub const EV_ERROR = 0x4000;
482
483	pub const EV_POLL = EV_FLAG0;
484	pub const EV_OOBAND = EV_FLAG1;
485
486	pub const EVFILT_READ = -1;
487	pub const EVFILT_WRITE = -2;
488
489	/// attached to aio requests
490	pub const EVFILT_AIO = -3;
491
492	/// attached to vnodes
493	pub const EVFILT_VNODE = -4;
494
495	/// attached to struct proc
496	pub const EVFILT_PROC = -5;
497
498	/// attached to struct proc
499	pub const EVFILT_SIGNAL = -6;
500
501	/// timers
502	pub const EVFILT_TIMER = -7;
503
504	/// Mach portsets
505	pub const EVFILT_MACHPORT = -8;
506
507	/// Filesystem events
508	pub const EVFILT_FS = -9;
509
510	/// User events
511	pub const EVFILT_USER = -10;
512
513	/// Virtual memory events
514	pub const EVFILT_VM = -12;
515
516	/// Exception events
517	pub const EVFILT_EXCEPT = -15;
518
519	pub const EVFILT_SYSCOUNT = 17;
520
521	/// On input, NOTE_TRIGGER causes the event to be triggered for output.
522	pub const NOTE_TRIGGER = 0x01000000;
523
524	/// ignore input fflags
525	pub const NOTE_FFNOP = 0x00000000;
526
527	/// and fflags
528	pub const NOTE_FFAND = 0x40000000;
529
530	/// or fflags
531	pub const NOTE_FFOR = 0x80000000;
532
533	/// copy fflags
534	pub const NOTE_FFCOPY = 0xc0000000;
535
536	/// mask for operations
537	pub const NOTE_FFCTRLMASK = 0xc0000000;
538	pub const NOTE_FFLAGSMASK = 0x00ffffff;
539
540	/// low water mark
541	pub const NOTE_LOWAT = 0x00000001;
542
543	/// OOB data
544	pub const NOTE_OOB = 0x00000002;
545
546	/// vnode was removed
547	pub const NOTE_DELETE = 0x00000001;
548
549	/// data contents changed
550	pub const NOTE_WRITE = 0x00000002;
551
552	/// size increased
553	pub const NOTE_EXTEND = 0x00000004;
554
555	/// attributes changed
556	pub const NOTE_ATTRIB = 0x00000008;
557
558	/// link count changed
559	pub const NOTE_LINK = 0x00000010;
560
561	/// vnode was renamed
562	pub const NOTE_RENAME = 0x00000020;
563
564	/// vnode access was revoked
565	pub const NOTE_REVOKE = 0x00000040;
566
567	/// No specific vnode event: to test for EVFILT_READ activation
568	pub const NOTE_NONE = 0x00000080;
569
570	/// vnode was unlocked by flock(2)
571	pub const NOTE_FUNLOCK = 0x00000100;
572
573	/// process exited
574	pub const NOTE_EXIT = 0x80000000;
575
576	/// process forked
577	pub const NOTE_FORK = 0x40000000;
578
579	/// process exec'd
580	pub const NOTE_EXEC = 0x20000000;
581
582	/// shared with EVFILT_SIGNAL
583	pub const NOTE_SIGNAL = 0x08000000;
584
585	/// exit status to be returned, valid for child process only
586	pub const NOTE_EXITSTATUS = 0x04000000;
587
588	/// provide details on reasons for exit
589	pub const NOTE_EXIT_DETAIL = 0x02000000;
590
591	/// mask for signal & exit status
592	pub const NOTE_PDATAMASK = 0x000fffff;
593	pub const NOTE_PCTRLMASK = (~NOTE_PDATAMASK);
594
595	pub const NOTE_EXIT_DETAIL_MASK = 0x00070000;
596	pub const NOTE_EXIT_DECRYPTFAIL = 0x00010000;
597	pub const NOTE_EXIT_MEMORY = 0x00020000;
598	pub const NOTE_EXIT_CSERROR = 0x00040000;
599
600	/// will react on memory pressure
601	pub const NOTE_VM_PRESSURE = 0x80000000;
602
603	/// will quit on memory pressure, possibly after cleaning up dirty state
604	pub const NOTE_VM_PRESSURE_TERMINATE = 0x40000000;
605
606	/// will quit immediately on memory pressure
607	pub const NOTE_VM_PRESSURE_SUDDEN_TERMINATE = 0x20000000;
608
609	/// there was an error
610	pub const NOTE_VM_ERROR = 0x10000000;
611
612	/// data is seconds
613	pub const NOTE_SECONDS = 0x00000001;
614
615	/// data is microseconds
616	pub const NOTE_USECONDS = 0x00000002;
617
618	/// data is nanoseconds
619	pub const NOTE_NSECONDS = 0x00000004;
620
621	/// absolute timeout
622	pub const NOTE_ABSOLUTE = 0x00000008;
623
624	/// ext[1] holds leeway for power aware timers
625	pub const NOTE_LEEWAY = 0x00000010;
626
627	/// system does minimal timer coalescing
628	pub const NOTE_CRITICAL = 0x00000020;
629
630	/// system does maximum timer coalescing
631	pub const NOTE_BACKGROUND = 0x00000040;
632	pub const NOTE_MACH_CONTINUOUS_TIME = 0x00000080;
633
634	/// data is mach absolute time units
635	pub const NOTE_MACHTIME = 0x00000100;
636
637	pub const AF_UNSPEC = 0;
638	pub const AF_LOCAL = 1;
639	pub const AF_UNIX = AF_LOCAL;
640	pub const AF_INET = 2;
641	pub const AF_SYS_CONTROL = 2;
642	pub const AF_IMPLINK = 3;
643	pub const AF_PUP = 4;
644	pub const AF_CHAOS = 5;
645	pub const AF_NS = 6;
646	pub const AF_ISO = 7;
647	pub const AF_OSI = AF_ISO;
648	pub const AF_ECMA = 8;
649	pub const AF_DATAKIT = 9;
650	pub const AF_CCITT = 10;
651	pub const AF_SNA = 11;
652	pub const AF_DECnet = 12;
653	pub const AF_DLI = 13;
654	pub const AF_LAT = 14;
655	pub const AF_HYLINK = 15;
656	pub const AF_APPLETALK = 16;
657	pub const AF_ROUTE = 17;
658	pub const AF_LINK = 18;
659	pub const AF_XTP = 19;
660	pub const AF_COIP = 20;
661	pub const AF_CNT = 21;
662	pub const AF_RTIP = 22;
663	pub const AF_IPX = 23;
664	pub const AF_SIP = 24;
665	pub const AF_PIP = 25;
666	pub const AF_ISDN = 28;
667	pub const AF_E164 = AF_ISDN;
668	pub const AF_KEY = 29;
669	pub const AF_INET6 = 30;
670	pub const AF_NATM = 31;
671	pub const AF_SYSTEM = 32;
672	pub const AF_NETBIOS = 33;
673	pub const AF_PPP = 34;
674	pub const AF_MAX = 40;
675
676	pub const PF_UNSPEC = AF_UNSPEC;
677	pub const PF_LOCAL = AF_LOCAL;
678	pub const PF_UNIX = PF_LOCAL;
679	pub const PF_INET = AF_INET;
680	pub const PF_IMPLINK = AF_IMPLINK;
681	pub const PF_PUP = AF_PUP;
682	pub const PF_CHAOS = AF_CHAOS;
683	pub const PF_NS = AF_NS;
684	pub const PF_ISO = AF_ISO;
685	pub const PF_OSI = AF_ISO;
686	pub const PF_ECMA = AF_ECMA;
687	pub const PF_DATAKIT = AF_DATAKIT;
688	pub const PF_CCITT = AF_CCITT;
689	pub const PF_SNA = AF_SNA;
690	pub const PF_DECnet = AF_DECnet;
691	pub const PF_DLI = AF_DLI;
692	pub const PF_LAT = AF_LAT;
693	pub const PF_HYLINK = AF_HYLINK;
694	pub const PF_APPLETALK = AF_APPLETALK;
695	pub const PF_ROUTE = AF_ROUTE;
696	pub const PF_LINK = AF_LINK;
697	pub const PF_XTP = AF_XTP;
698	pub const PF_COIP = AF_COIP;
699	pub const PF_CNT = AF_CNT;
700	pub const PF_SIP = AF_SIP;
701	pub const PF_IPX = AF_IPX;
702	pub const PF_RTIP = AF_RTIP;
703	pub const PF_PIP = AF_PIP;
704	pub const PF_ISDN = AF_ISDN;
705	pub const PF_KEY = AF_KEY;
706	pub const PF_INET6 = AF_INET6;
707	pub const PF_NATM = AF_NATM;
708	pub const PF_SYSTEM = AF_SYSTEM;
709	pub const PF_NETBIOS = AF_NETBIOS;
710	pub const PF_PPP = AF_PPP;
711	pub const PF_MAX = AF_MAX;
712
713	pub const SYSPROTO_EVENT = 1;
714	pub const SYSPROTO_CONTROL = 2;
715
716	pub const SOCK_STREAM = 1;
717	pub const SOCK_DGRAM = 2;
718	pub const SOCK_RAW = 3;
719	pub const SOCK_RDM = 4;
720	pub const SOCK_SEQPACKET = 5;
721	pub const SOCK_MAXADDRLEN = 255;
722
723	pub const IPPROTO_ICMP = 1;
724	pub const IPPROTO_ICMPV6 = 58;
725	pub const IPPROTO_TCP = 6;
726	pub const IPPROTO_UDP = 17;
727	pub const IPPROTO_IP = 0;
728	pub const IPPROTO_IPV6 = 41;
729
730	fn wstatus(x: u32) u32 {
731	return x & 0o177;
732	}
733	const wstopped = 0o177;
734	pub fn WEXITSTATUS(x: u32) u32 {
735	return x >> 8;
736	}
737	pub fn WTERMSIG(x: u32) u32 {
738	return wstatus(x);
739	}
740	pub fn WSTOPSIG(x: u32) u32 {
741	return x >> 8;
742	}
743	pub fn WIFEXITED(x: u32) bool {
744	return wstatus(x) == 0;
745	}
746	pub fn WIFSTOPPED(x: u32) bool {
747	return wstatus(x) == wstopped and WSTOPSIG(x) != 0x13;
748	}
749	pub fn WIFSIGNALED(x: u32) bool {
750	return wstatus(x) != wstopped and wstatus(x) != 0;
751	}
752
753	/// Operation not permitted
754	pub const EPERM = 1;
755
756	/// No such file or directory
757	pub const ENOENT = 2;
758
759	/// No such process
760	pub const ESRCH = 3;
761
762	/// Interrupted system call
763	pub const EINTR = 4;
764
765	/// Input/output error
766	pub const EIO = 5;
767
768	/// Device not configured
769	pub const ENXIO = 6;
770
771	/// Argument list too long
772	pub const E2BIG = 7;
773
774	/// Exec format error
775	pub const ENOEXEC = 8;
776
777	/// Bad file descriptor
778	pub const EBADF = 9;
779
780	/// No child processes
781	pub const ECHILD = 10;
782
783	/// Resource deadlock avoided
784	pub const EDEADLK = 11;
785
786	/// Cannot allocate memory
787	pub const ENOMEM = 12;
788
789	/// Permission denied
790	pub const EACCES = 13;
791
792	/// Bad address
793	pub const EFAULT = 14;
794
795	/// Block device required
796	pub const ENOTBLK = 15;
797
798	/// Device / Resource busy
799	pub const EBUSY = 16;
800
801	/// File exists
802	pub const EEXIST = 17;
803
804	/// Cross-device link
805	pub const EXDEV = 18;
806
807	/// Operation not supported by device
808	pub const ENODEV = 19;
809
810	/// Not a directory
811	pub const ENOTDIR = 20;
812
813	/// Is a directory
814	pub const EISDIR = 21;
815
816	/// Invalid argument
817	pub const EINVAL = 22;
818
819	/// Too many open files in system
820	pub const ENFILE = 23;
821
822	/// Too many open files
823	pub const EMFILE = 24;
824
825	/// Inappropriate ioctl for device
826	pub const ENOTTY = 25;
827
828	/// Text file busy
829	pub const ETXTBSY = 26;
830
831	/// File too large
832	pub const EFBIG = 27;
833
834	/// No space left on device
835	pub const ENOSPC = 28;
836
837	/// Illegal seek
838	pub const ESPIPE = 29;
839
840	/// Read-only file system
841	pub const EROFS = 30;
842
843	/// Too many links
844	pub const EMLINK = 31;
845	/// Broken pipe
846
847	// math software
848	pub const EPIPE = 32;
849
850	/// Numerical argument out of domain
851	pub const EDOM = 33;
852	/// Result too large
853
854	// non-blocking and interrupt i/o
855	pub const ERANGE = 34;
856
857	/// Resource temporarily unavailable
858	pub const EAGAIN = 35;
859
860	/// Operation would block
861	pub const EWOULDBLOCK = EAGAIN;
862
863	/// Operation now in progress
864	pub const EINPROGRESS = 36;
865	/// Operation already in progress
866
867	// ipc/network software -- argument errors
868	pub const EALREADY = 37;
869
870	/// Socket operation on non-socket
871	pub const ENOTSOCK = 38;
872
873	/// Destination address required
874	pub const EDESTADDRREQ = 39;
875
876	/// Message too long
877	pub const EMSGSIZE = 40;
878
879	/// Protocol wrong type for socket
880	pub const EPROTOTYPE = 41;
881
882	/// Protocol not available
883	pub const ENOPROTOOPT = 42;
884
885	/// Protocol not supported
886	pub const EPROTONOSUPPORT = 43;
887
888	/// Socket type not supported
889	pub const ESOCKTNOSUPPORT = 44;
890
891	/// Operation not supported
892	pub const ENOTSUP = 45;
893
894	/// Protocol family not supported
895	pub const EPFNOSUPPORT = 46;
896
897	/// Address family not supported by protocol family
898	pub const EAFNOSUPPORT = 47;
899
900	/// Address already in use
901	pub const EADDRINUSE = 48;
902	/// Can't assign requested address
903
904	// ipc/network software -- operational errors
905	pub const EADDRNOTAVAIL = 49;
906
907	/// Network is down
908	pub const ENETDOWN = 50;
909
910	/// Network is unreachable
911	pub const ENETUNREACH = 51;
912
913	/// Network dropped connection on reset
914	pub const ENETRESET = 52;
915
916	/// Software caused connection abort
917	pub const ECONNABORTED = 53;
918
919	/// Connection reset by peer
920	pub const ECONNRESET = 54;
921
922	/// No buffer space available
923	pub const ENOBUFS = 55;
924
925	/// Socket is already connected
926	pub const EISCONN = 56;
927
928	/// Socket is not connected
929	pub const ENOTCONN = 57;
930
931	/// Can't send after socket shutdown
932	pub const ESHUTDOWN = 58;
933
934	/// Too many references: can't splice
935	pub const ETOOMANYREFS = 59;
936
937	/// Operation timed out
938	pub const ETIMEDOUT = 60;
939
940	/// Connection refused
941	pub const ECONNREFUSED = 61;
942
943	/// Too many levels of symbolic links
944	pub const ELOOP = 62;
945
946	/// File name too long
947	pub const ENAMETOOLONG = 63;
948
949	/// Host is down
950	pub const EHOSTDOWN = 64;
951
952	/// No route to host
953	pub const EHOSTUNREACH = 65;
954	/// Directory not empty
955
956	// quotas & mush
957	pub const ENOTEMPTY = 66;
958
959	/// Too many processes
960	pub const EPROCLIM = 67;
961
962	/// Too many users
963	pub const EUSERS = 68;
964	/// Disc quota exceeded
965
966	// Network File System
967	pub const EDQUOT = 69;
968
969	/// Stale NFS file handle
970	pub const ESTALE = 70;
971
972	/// Too many levels of remote in path
973	pub const EREMOTE = 71;
974
975	/// RPC struct is bad
976	pub const EBADRPC = 72;
977
978	/// RPC version wrong
979	pub const ERPCMISMATCH = 73;
980
981	/// RPC prog. not avail
982	pub const EPROGUNAVAIL = 74;
983
984	/// Program version wrong
985	pub const EPROGMISMATCH = 75;
986
987	/// Bad procedure for program
988	pub const EPROCUNAVAIL = 76;
989
990	/// No locks available
991	pub const ENOLCK = 77;
992
993	/// Function not implemented
994	pub const ENOSYS = 78;
995
996	/// Inappropriate file type or format
997	pub const EFTYPE = 79;
998
999	/// Authentication error
1000	pub const EAUTH = 80;
1001	/// Need authenticator
1002
1003	// Intelligent device errors
1004	pub const ENEEDAUTH = 81;
1005
1006	/// Device power is off
1007	pub const EPWROFF = 82;
1008
1009	/// Device error, e.g. paper out
1010	pub const EDEVERR = 83;
1011	/// Value too large to be stored in data type
1012
1013	// Program loading errors
1014	pub const EOVERFLOW = 84;
1015
1016	/// Bad executable
1017	pub const EBADEXEC = 85;
1018
1019	/// Bad CPU type in executable
1020	pub const EBADARCH = 86;
1021
1022	/// Shared library version mismatch
1023	pub const ESHLIBVERS = 87;
1024
1025	/// Malformed Macho file
1026	pub const EBADMACHO = 88;
1027
1028	/// Operation canceled
1029	pub const ECANCELED = 89;
1030
1031	/// Identifier removed
1032	pub const EIDRM = 90;
1033
1034	/// No message of desired type
1035	pub const ENOMSG = 91;
1036
1037	/// Illegal byte sequence
1038	pub const EILSEQ = 92;
1039
1040	/// Attribute not found
1041	pub const ENOATTR = 93;
1042
1043	/// Bad message
1044	pub const EBADMSG = 94;
1045
1046	/// Reserved
1047	pub const EMULTIHOP = 95;
1048
1049	/// No message available on STREAM
1050	pub const ENODATA = 96;
1051
1052	/// Reserved
1053	pub const ENOLINK = 97;
1054
1055	/// No STREAM resources
1056	pub const ENOSR = 98;
1057
1058	/// Not a STREAM
1059	pub const ENOSTR = 99;
1060
1061	/// Protocol error
1062	pub const EPROTO = 100;
1063
1064	/// STREAM ioctl timeout
1065	pub const ETIME = 101;
1066
1067	/// No such policy registered
1068	pub const ENOPOLICY = 103;
1069
1070	/// State not recoverable
1071	pub const ENOTRECOVERABLE = 104;
1072
1073	/// Previous owner died
1074	pub const EOWNERDEAD = 105;
1075
1076	/// Interface output queue is full
1077	pub const EQFULL = 106;
1078
1079	/// Must be equal largest errno
1080	pub const ELAST = 106;

std/os/bits/freebsd.zig created+837

...	@@ -0,0 +1,837 @@
1	const std = @import("../../std.zig");
2	const maxInt = std.math.maxInt;
3
4	pub const fd_t = c_int;
5	pub const pid_t = c_int;
6
7	/// Renamed from `kevent` to `Kevent` to avoid conflict with function name.
8	pub const Kevent = extern struct {
9	ident: usize,
10	filter: i16,
11	flags: u16,
12	fflags: u32,
13	data: i64,
14	udata: usize,
15	// TODO ext
16	};
17
18	pub const pthread_attr_t = extern struct {
19	__size: [56]u8,
20	__align: c_long,
21	};
22
23	pub const msghdr = extern struct {
24	/// optional address
25	msg_name: ?*sockaddr,
26
27	/// size of address
28	msg_namelen: socklen_t,
29
30	/// scatter/gather array
31	msg_iov: [*]iovec,
32
33	/// # elements in msg_iov
34	msg_iovlen: i32,
35
36	/// ancillary data
37	msg_control: ?*c_void,
38
39	/// ancillary data buffer len
40	msg_controllen: socklen_t,
41
42	/// flags on received message
43	msg_flags: i32,
44	};
45
46	pub const msghdr_const = extern struct {
47	/// optional address
48	msg_name: ?*const sockaddr,
49
50	/// size of address
51	msg_namelen: socklen_t,
52
53	/// scatter/gather array
54	msg_iov: [*]iovec_const,
55
56	/// # elements in msg_iov
57	msg_iovlen: i32,
58
59	/// ancillary data
60	msg_control: ?*c_void,
61
62	/// ancillary data buffer len
63	msg_controllen: socklen_t,
64
65	/// flags on received message
66	msg_flags: i32,
67	};
68
69	pub const Stat = extern struct {
70	dev: u64,
71	ino: u64,
72	nlink: usize,
73
74	mode: u16,
75	__pad0: u16,
76	uid: u32,
77	gid: u32,
78	__pad1: u32,
79	rdev: u64,
80
81	atim: timespec,
82	mtim: timespec,
83	ctim: timespec,
84	birthtim: timespec,
85
86	size: i64,
87	blocks: i64,
88	blksize: isize,
89	flags: u32,
90	gen: u64,
91	__spare: [10]u64,
92	};
93
94	pub const timespec = extern struct {
95	tv_sec: isize,
96	tv_nsec: isize,
97	};
98
99	pub const dirent = extern struct {
100	d_fileno: usize,
101	d_off: i64,
102	d_reclen: u16,
103	d_type: u8,
104	d_pad0: u8,
105	d_namlen: u16,
106	d_pad1: u16,
107	d_name: [256]u8,
108	};
109
110	pub const in_port_t = u16;
111	pub const sa_family_t = u16;
112
113	pub const sockaddr = extern union {
114	in: sockaddr_in,
115	in6: sockaddr_in6,
116	};
117
118	pub const sockaddr_in = extern struct {
119	len: u8,
120	family: sa_family_t,
121	port: in_port_t,
122	addr: [16]u8,
123	zero: [8]u8,
124	};
125
126	pub const sockaddr_in6 = extern struct {
127	len: u8,
128	family: sa_family_t,
129	port: in_port_t,
130	flowinfo: u32,
131	addr: [16]u8,
132	scope_id: u32,
133	};
134
135	pub const CTL_KERN = 1;
136	pub const CTL_DEBUG = 5;
137
138	pub const KERN_PROC = 14; // struct: process entries
139	pub const KERN_PROC_PATHNAME = 12; // path to executable
140
141	pub const PATH_MAX = 1024;
142
143	pub const STDIN_FILENO = 0;
144	pub const STDOUT_FILENO = 1;
145	pub const STDERR_FILENO = 2;
146
147	pub const PROT_NONE = 0;
148	pub const PROT_READ = 1;
149	pub const PROT_WRITE = 2;
150	pub const PROT_EXEC = 4;
151
152	pub const CLOCK_REALTIME = 0;
153	pub const CLOCK_VIRTUAL = 1;
154	pub const CLOCK_PROF = 2;
155	pub const CLOCK_MONOTONIC = 4;
156	pub const CLOCK_UPTIME = 5;
157	pub const CLOCK_UPTIME_PRECISE = 7;
158	pub const CLOCK_UPTIME_FAST = 8;
159	pub const CLOCK_REALTIME_PRECISE = 9;
160	pub const CLOCK_REALTIME_FAST = 10;
161	pub const CLOCK_MONOTONIC_PRECISE = 11;
162	pub const CLOCK_MONOTONIC_FAST = 12;
163	pub const CLOCK_SECOND = 13;
164	pub const CLOCK_THREAD_CPUTIME_ID = 14;
165	pub const CLOCK_PROCESS_CPUTIME_ID = 15;
166
167	pub const MAP_FAILED = @intToPtr(*c_void, maxInt(usize));
168	pub const MAP_SHARED = 0x0001;
169	pub const MAP_PRIVATE = 0x0002;
170	pub const MAP_FIXED = 0x0010;
171	pub const MAP_STACK = 0x0400;
172	pub const MAP_NOSYNC = 0x0800;
173	pub const MAP_ANON = 0x1000;
174	pub const MAP_ANONYMOUS = MAP_ANON;
175	pub const MAP_FILE = 0;
176	pub const MAP_NORESERVE = 0;
177
178	pub const MAP_GUARD = 0x00002000;
179	pub const MAP_EXCL = 0x00004000;
180	pub const MAP_NOCORE = 0x00020000;
181	pub const MAP_PREFAULT_READ = 0x00040000;
182	pub const MAP_32BIT = 0x00080000;
183
184	pub const WNOHANG = 1;
185	pub const WUNTRACED = 2;
186	pub const WSTOPPED = WUNTRACED;
187	pub const WCONTINUED = 4;
188	pub const WNOWAIT = 8;
189	pub const WEXITED = 16;
190	pub const WTRAPPED = 32;
191
192	pub const SA_ONSTACK = 0x0001;
193	pub const SA_RESTART = 0x0002;
194	pub const SA_RESETHAND = 0x0004;
195	pub const SA_NOCLDSTOP = 0x0008;
196	pub const SA_NODEFER = 0x0010;
197	pub const SA_NOCLDWAIT = 0x0020;
198	pub const SA_SIGINFO = 0x0040;
199
200	pub const SIGHUP = 1;
201	pub const SIGINT = 2;
202	pub const SIGQUIT = 3;
203	pub const SIGILL = 4;
204	pub const SIGTRAP = 5;
205	pub const SIGABRT = 6;
206	pub const SIGIOT = SIGABRT;
207	pub const SIGEMT = 7;
208	pub const SIGFPE = 8;
209	pub const SIGKILL = 9;
210	pub const SIGBUS = 10;
211	pub const SIGSEGV = 11;
212	pub const SIGSYS = 12;
213	pub const SIGPIPE = 13;
214	pub const SIGALRM = 14;
215	pub const SIGTERM = 15;
216	pub const SIGURG = 16;
217	pub const SIGSTOP = 17;
218	pub const SIGTSTP = 18;
219	pub const SIGCONT = 19;
220	pub const SIGCHLD = 20;
221	pub const SIGTTIN = 21;
222	pub const SIGTTOU = 22;
223	pub const SIGIO = 23;
224	pub const SIGXCPU = 24;
225	pub const SIGXFSZ = 25;
226	pub const SIGVTALRM = 26;
227	pub const SIGPROF = 27;
228	pub const SIGWINCH = 28;
229	pub const SIGINFO = 29;
230	pub const SIGUSR1 = 30;
231	pub const SIGUSR2 = 31;
232	pub const SIGTHR = 32;
233	pub const SIGLWP = SIGTHR;
234	pub const SIGLIBRT = 33;
235
236	pub const SIGRTMIN = 65;
237	pub const SIGRTMAX = 126;
238
239	// access function
240	pub const F_OK = 0; // test for existence of file
241	pub const X_OK = 1; // test for execute or search permission
242	pub const W_OK = 2; // test for write permission
243	pub const R_OK = 4; // test for read permission
244
245	pub const O_RDONLY = 0x0000;
246	pub const O_WRONLY = 0x0001;
247	pub const O_RDWR = 0x0002;
248	pub const O_ACCMODE = 0x0003;
249
250	pub const O_CREAT = 0x0200;
251	pub const O_EXCL = 0x0800;
252	pub const O_NOCTTY = 0x8000;
253	pub const O_TRUNC = 0x0400;
254	pub const O_APPEND = 0x0008;
255	pub const O_NONBLOCK = 0x0004;
256	pub const O_DSYNC = 0o10000;
257	pub const O_SYNC = 0x0080;
258	pub const O_RSYNC = 0o4010000;
259	pub const O_DIRECTORY = 0o200000;
260	pub const O_NOFOLLOW = 0x0100;
261	pub const O_CLOEXEC = 0x00100000;
262
263	pub const O_ASYNC = 0x0040;
264	pub const O_DIRECT = 0x00010000;
265	pub const O_LARGEFILE = 0;
266	pub const O_NOATIME = 0o1000000;
267	pub const O_PATH = 0o10000000;
268	pub const O_TMPFILE = 0o20200000;
269	pub const O_NDELAY = O_NONBLOCK;
270
271	pub const F_DUPFD = 0;
272	pub const F_GETFD = 1;
273	pub const F_SETFD = 2;
274	pub const F_GETFL = 3;
275	pub const F_SETFL = 4;
276
277	pub const F_SETOWN = 8;
278	pub const F_GETOWN = 9;
279	pub const F_SETSIG = 10;
280	pub const F_GETSIG = 11;
281
282	pub const F_GETLK = 5;
283	pub const F_SETLK = 6;
284	pub const F_SETLKW = 7;
285
286	pub const F_SETOWN_EX = 15;
287	pub const F_GETOWN_EX = 16;
288
289	pub const F_GETOWNER_UIDS = 17;
290
291	pub const SEEK_SET = 0;
292	pub const SEEK_CUR = 1;
293	pub const SEEK_END = 2;
294
295	pub const SIG_BLOCK = 1;
296	pub const SIG_UNBLOCK = 2;
297	pub const SIG_SETMASK = 3;
298
299	pub const SOCK_STREAM = 1;
300	pub const SOCK_DGRAM = 2;
301	pub const SOCK_RAW = 3;
302	pub const SOCK_RDM = 4;
303	pub const SOCK_SEQPACKET = 5;
304
305	pub const SOCK_CLOEXEC = 0x10000000;
306	pub const SOCK_NONBLOCK = 0x20000000;
307
308	pub const PROTO_ip = 0o000;
309	pub const PROTO_icmp = 0o001;
310	pub const PROTO_igmp = 0o002;
311	pub const PROTO_ggp = 0o003;
312	pub const PROTO_ipencap = 0o004;
313	pub const PROTO_st = 0o005;
314	pub const PROTO_tcp = 0o006;
315	pub const PROTO_egp = 0o010;
316	pub const PROTO_pup = 0o014;
317	pub const PROTO_udp = 0o021;
318	pub const PROTO_hmp = 0o024;
319	pub const PROTO_xns_idp = 0o026;
320	pub const PROTO_rdp = 0o033;
321	pub const PROTO_iso_tp4 = 0o035;
322	pub const PROTO_xtp = 0o044;
323	pub const PROTO_ddp = 0o045;
324	pub const PROTO_idpr_cmtp = 0o046;
325	pub const PROTO_ipv6 = 0o051;
326	pub const PROTO_ipv6_route = 0o053;
327	pub const PROTO_ipv6_frag = 0o054;
328	pub const PROTO_idrp = 0o055;
329	pub const PROTO_rsvp = 0o056;
330	pub const PROTO_gre = 0o057;
331	pub const PROTO_esp = 0o062;
332	pub const PROTO_ah = 0o063;
333	pub const PROTO_skip = 0o071;
334	pub const PROTO_ipv6_icmp = 0o072;
335	pub const PROTO_ipv6_nonxt = 0o073;
336	pub const PROTO_ipv6_opts = 0o074;
337	pub const PROTO_rspf = 0o111;
338	pub const PROTO_vmtp = 0o121;
339	pub const PROTO_ospf = 0o131;
340	pub const PROTO_ipip = 0o136;
341	pub const PROTO_encap = 0o142;
342	pub const PROTO_pim = 0o147;
343	pub const PROTO_raw = 0o377;
344
345	pub const PF_UNSPEC = 0;
346	pub const PF_LOCAL = 1;
347	pub const PF_UNIX = PF_LOCAL;
348	pub const PF_FILE = PF_LOCAL;
349	pub const PF_INET = 2;
350	pub const PF_AX25 = 3;
351	pub const PF_IPX = 4;
352	pub const PF_APPLETALK = 5;
353	pub const PF_NETROM = 6;
354	pub const PF_BRIDGE = 7;
355	pub const PF_ATMPVC = 8;
356	pub const PF_X25 = 9;
357	pub const PF_INET6 = 10;
358	pub const PF_ROSE = 11;
359	pub const PF_DECnet = 12;
360	pub const PF_NETBEUI = 13;
361	pub const PF_SECURITY = 14;
362	pub const PF_KEY = 15;
363	pub const PF_NETLINK = 16;
364	pub const PF_ROUTE = PF_NETLINK;
365	pub const PF_PACKET = 17;
366	pub const PF_ASH = 18;
367	pub const PF_ECONET = 19;
368	pub const PF_ATMSVC = 20;
369	pub const PF_RDS = 21;
370	pub const PF_SNA = 22;
371	pub const PF_IRDA = 23;
372	pub const PF_PPPOX = 24;
373	pub const PF_WANPIPE = 25;
374	pub const PF_LLC = 26;
375	pub const PF_IB = 27;
376	pub const PF_MPLS = 28;
377	pub const PF_CAN = 29;
378	pub const PF_TIPC = 30;
379	pub const PF_BLUETOOTH = 31;
380	pub const PF_IUCV = 32;
381	pub const PF_RXRPC = 33;
382	pub const PF_ISDN = 34;
383	pub const PF_PHONET = 35;
384	pub const PF_IEEE802154 = 36;
385	pub const PF_CAIF = 37;
386	pub const PF_ALG = 38;
387	pub const PF_NFC = 39;
388	pub const PF_VSOCK = 40;
389	pub const PF_MAX = 41;
390
391	pub const AF_UNSPEC = PF_UNSPEC;
392	pub const AF_LOCAL = PF_LOCAL;
393	pub const AF_UNIX = AF_LOCAL;
394	pub const AF_FILE = AF_LOCAL;
395	pub const AF_INET = PF_INET;
396	pub const AF_AX25 = PF_AX25;
397	pub const AF_IPX = PF_IPX;
398	pub const AF_APPLETALK = PF_APPLETALK;
399	pub const AF_NETROM = PF_NETROM;
400	pub const AF_BRIDGE = PF_BRIDGE;
401	pub const AF_ATMPVC = PF_ATMPVC;
402	pub const AF_X25 = PF_X25;
403	pub const AF_INET6 = PF_INET6;
404	pub const AF_ROSE = PF_ROSE;
405	pub const AF_DECnet = PF_DECnet;
406	pub const AF_NETBEUI = PF_NETBEUI;
407	pub const AF_SECURITY = PF_SECURITY;
408	pub const AF_KEY = PF_KEY;
409	pub const AF_NETLINK = PF_NETLINK;
410	pub const AF_ROUTE = PF_ROUTE;
411	pub const AF_PACKET = PF_PACKET;
412	pub const AF_ASH = PF_ASH;
413	pub const AF_ECONET = PF_ECONET;
414	pub const AF_ATMSVC = PF_ATMSVC;
415	pub const AF_RDS = PF_RDS;
416	pub const AF_SNA = PF_SNA;
417	pub const AF_IRDA = PF_IRDA;
418	pub const AF_PPPOX = PF_PPPOX;
419	pub const AF_WANPIPE = PF_WANPIPE;
420	pub const AF_LLC = PF_LLC;
421	pub const AF_IB = PF_IB;
422	pub const AF_MPLS = PF_MPLS;
423	pub const AF_CAN = PF_CAN;
424	pub const AF_TIPC = PF_TIPC;
425	pub const AF_BLUETOOTH = PF_BLUETOOTH;
426	pub const AF_IUCV = PF_IUCV;
427	pub const AF_RXRPC = PF_RXRPC;
428	pub const AF_ISDN = PF_ISDN;
429	pub const AF_PHONET = PF_PHONET;
430	pub const AF_IEEE802154 = PF_IEEE802154;
431	pub const AF_CAIF = PF_CAIF;
432	pub const AF_ALG = PF_ALG;
433	pub const AF_NFC = PF_NFC;
434	pub const AF_VSOCK = PF_VSOCK;
435	pub const AF_MAX = PF_MAX;
436
437	pub const DT_UNKNOWN = 0;
438	pub const DT_FIFO = 1;
439	pub const DT_CHR = 2;
440	pub const DT_DIR = 4;
441	pub const DT_BLK = 6;
442	pub const DT_REG = 8;
443	pub const DT_LNK = 10;
444	pub const DT_SOCK = 12;
445	pub const DT_WHT = 14;
446
447	/// add event to kq (implies enable)
448	pub const EV_ADD = 0x0001;
449
450	/// delete event from kq
451	pub const EV_DELETE = 0x0002;
452
453	/// enable event
454	pub const EV_ENABLE = 0x0004;
455
456	/// disable event (not reported)
457	pub const EV_DISABLE = 0x0008;
458
459	/// only report one occurrence
460	pub const EV_ONESHOT = 0x0010;
461
462	/// clear event state after reporting
463	pub const EV_CLEAR = 0x0020;
464
465	/// force immediate event output
466	/// ... with or without EV_ERROR
467	/// ... use KEVENT_FLAG_ERROR_EVENTS
468	/// on syscalls supporting flags
469	pub const EV_RECEIPT = 0x0040;
470
471	/// disable event after reporting
472	pub const EV_DISPATCH = 0x0080;
473
474	pub const EVFILT_READ = -1;
475	pub const EVFILT_WRITE = -2;
476
477	/// attached to aio requests
478	pub const EVFILT_AIO = -3;
479
480	/// attached to vnodes
481	pub const EVFILT_VNODE = -4;
482
483	/// attached to struct proc
484	pub const EVFILT_PROC = -5;
485
486	/// attached to struct proc
487	pub const EVFILT_SIGNAL = -6;
488
489	/// timers
490	pub const EVFILT_TIMER = -7;
491
492	/// Process descriptors
493	pub const EVFILT_PROCDESC = -8;
494
495	/// Filesystem events
496	pub const EVFILT_FS = -9;
497
498	pub const EVFILT_LIO = -10;
499
500	/// User events
501	pub const EVFILT_USER = -11;
502
503	/// Sendfile events
504	pub const EVFILT_SENDFILE = -12;
505
506	pub const EVFILT_EMPTY = -13;
507
508	/// On input, NOTE_TRIGGER causes the event to be triggered for output.
509	pub const NOTE_TRIGGER = 0x01000000;
510
511	/// ignore input fflags
512	pub const NOTE_FFNOP = 0x00000000;
513
514	/// and fflags
515	pub const NOTE_FFAND = 0x40000000;
516
517	/// or fflags
518	pub const NOTE_FFOR = 0x80000000;
519
520	/// copy fflags
521	pub const NOTE_FFCOPY = 0xc0000000;
522
523	/// mask for operations
524	pub const NOTE_FFCTRLMASK = 0xc0000000;
525	pub const NOTE_FFLAGSMASK = 0x00ffffff;
526
527	/// low water mark
528	pub const NOTE_LOWAT = 0x00000001;
529
530	/// behave like poll()
531	pub const NOTE_FILE_POLL = 0x00000002;
532
533	/// vnode was removed
534	pub const NOTE_DELETE = 0x00000001;
535
536	/// data contents changed
537	pub const NOTE_WRITE = 0x00000002;
538
539	/// size increased
540	pub const NOTE_EXTEND = 0x00000004;
541
542	/// attributes changed
543	pub const NOTE_ATTRIB = 0x00000008;
544
545	/// link count changed
546	pub const NOTE_LINK = 0x00000010;
547
548	/// vnode was renamed
549	pub const NOTE_RENAME = 0x00000020;
550
551	/// vnode access was revoked
552	pub const NOTE_REVOKE = 0x00000040;
553
554	/// vnode was opened
555	pub const NOTE_OPEN = 0x00000080;
556
557	/// file closed, fd did not allow write
558	pub const NOTE_CLOSE = 0x00000100;
559
560	/// file closed, fd did allow write
561	pub const NOTE_CLOSE_WRITE = 0x00000200;
562
563	/// file was read
564	pub const NOTE_READ = 0x00000400;
565
566	/// process exited
567	pub const NOTE_EXIT = 0x80000000;
568
569	/// process forked
570	pub const NOTE_FORK = 0x40000000;
571
572	/// process exec'd
573	pub const NOTE_EXEC = 0x20000000;
574
575	/// mask for signal & exit status
576	pub const NOTE_PDATAMASK = 0x000fffff;
577	pub const NOTE_PCTRLMASK = (~NOTE_PDATAMASK);
578
579	/// data is seconds
580	pub const NOTE_SECONDS = 0x00000001;
581
582	/// data is milliseconds
583	pub const NOTE_MSECONDS = 0x00000002;
584
585	/// data is microseconds
586	pub const NOTE_USECONDS = 0x00000004;
587
588	/// data is nanoseconds
589	pub const NOTE_NSECONDS = 0x00000008;
590
591	/// timeout is absolute
592	pub const NOTE_ABSTIME = 0x00000010;
593
594	pub const TCGETS = 0x5401;
595	pub const TCSETS = 0x5402;
596	pub const TCSETSW = 0x5403;
597	pub const TCSETSF = 0x5404;
598	pub const TCGETA = 0x5405;
599	pub const TCSETA = 0x5406;
600	pub const TCSETAW = 0x5407;
601	pub const TCSETAF = 0x5408;
602	pub const TCSBRK = 0x5409;
603	pub const TCXONC = 0x540A;
604	pub const TCFLSH = 0x540B;
605	pub const TIOCEXCL = 0x540C;
606	pub const TIOCNXCL = 0x540D;
607	pub const TIOCSCTTY = 0x540E;
608	pub const TIOCGPGRP = 0x540F;
609	pub const TIOCSPGRP = 0x5410;
610	pub const TIOCOUTQ = 0x5411;
611	pub const TIOCSTI = 0x5412;
612	pub const TIOCGWINSZ = 0x5413;
613	pub const TIOCSWINSZ = 0x5414;
614	pub const TIOCMGET = 0x5415;
615	pub const TIOCMBIS = 0x5416;
616	pub const TIOCMBIC = 0x5417;
617	pub const TIOCMSET = 0x5418;
618	pub const TIOCGSOFTCAR = 0x5419;
619	pub const TIOCSSOFTCAR = 0x541A;
620	pub const FIONREAD = 0x541B;
621	pub const TIOCINQ = FIONREAD;
622	pub const TIOCLINUX = 0x541C;
623	pub const TIOCCONS = 0x541D;
624	pub const TIOCGSERIAL = 0x541E;
625	pub const TIOCSSERIAL = 0x541F;
626	pub const TIOCPKT = 0x5420;
627	pub const FIONBIO = 0x5421;
628	pub const TIOCNOTTY = 0x5422;
629	pub const TIOCSETD = 0x5423;
630	pub const TIOCGETD = 0x5424;
631	pub const TCSBRKP = 0x5425;
632	pub const TIOCSBRK = 0x5427;
633	pub const TIOCCBRK = 0x5428;
634	pub const TIOCGSID = 0x5429;
635	pub const TIOCGRS485 = 0x542E;
636	pub const TIOCSRS485 = 0x542F;
637	pub const TIOCGPTN = 0x80045430;
638	pub const TIOCSPTLCK = 0x40045431;
639	pub const TIOCGDEV = 0x80045432;
640	pub const TCGETX = 0x5432;
641	pub const TCSETX = 0x5433;
642	pub const TCSETXF = 0x5434;
643	pub const TCSETXW = 0x5435;
644	pub const TIOCSIG = 0x40045436;
645	pub const TIOCVHANGUP = 0x5437;
646	pub const TIOCGPKT = 0x80045438;
647	pub const TIOCGPTLCK = 0x80045439;
648	pub const TIOCGEXCL = 0x80045440;
649
650	pub fn WEXITSTATUS(s: u32) u32 {
651	return (s & 0xff00) >> 8;
652	}
653	pub fn WTERMSIG(s: u32) u32 {
654	return s & 0x7f;
655	}
656	pub fn WSTOPSIG(s: u32) u32 {
657	return WEXITSTATUS(s);
658	}
659	pub fn WIFEXITED(s: u32) bool {
660	return WTERMSIG(s) == 0;
661	}
662	pub fn WIFSTOPPED(s: u32) bool {
663	return @intCast(u16, (((s & 0xffff) *% 0x10001) >> 8)) > 0x7f00;
664	}
665	pub fn WIFSIGNALED(s: u32) bool {
666	return (s & 0xffff) -% 1 < 0xff;
667	}
668
669	pub const winsize = extern struct {
670	ws_row: u16,
671	ws_col: u16,
672	ws_xpixel: u16,
673	ws_ypixel: u16,
674	};
675
676	const NSIG = 32;
677
678	pub const SIG_ERR = @intToPtr(extern fn (i32) void, maxInt(usize));
679	pub const SIG_DFL = @intToPtr(extern fn (i32) void, 0);
680	pub const SIG_IGN = @intToPtr(extern fn (i32) void, 1);
681
682	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
683	pub const Sigaction = extern struct {
684	/// signal handler
685	__sigaction_u: extern union {
686	__sa_handler: extern fn (i32) void,
687	__sa_sigaction: extern fn (i32, *__siginfo, usize) void,
688	},
689
690	/// see signal options
691	sa_flags: u32,
692
693	/// signal mask to apply
694	sa_mask: sigset_t,
695	};
696
697	pub const _SIG_WORDS = 4;
698	pub const _SIG_MAXSIG = 128;
699
700	pub inline fn _SIG_IDX(sig: usize) usize {
701	return sig - 1;
702	}
703	pub inline fn _SIG_WORD(sig: usize) usize {
704	return_SIG_IDX(sig) >> 5;
705	}
706	pub inline fn _SIG_BIT(sig: usize) usize {
707	return 1 << (_SIG_IDX(sig) & 31);
708	}
709	pub inline fn _SIG_VALID(sig: usize) usize {
710	return sig <= _SIG_MAXSIG and sig > 0;
711	}
712
713	pub const sigset_t = extern struct {
714	__bits: [_SIG_WORDS]u32,
715	};
716
717	pub const EPERM = 1; // Operation not permitted
718	pub const ENOENT = 2; // No such file or directory
719	pub const ESRCH = 3; // No such process
720	pub const EINTR = 4; // Interrupted system call
721	pub const EIO = 5; // Input/output error
722	pub const ENXIO = 6; // Device not configured
723	pub const E2BIG = 7; // Argument list too long
724	pub const ENOEXEC = 8; // Exec format error
725	pub const EBADF = 9; // Bad file descriptor
726	pub const ECHILD = 10; // No child processes
727	pub const EDEADLK = 11; // Resource deadlock avoided
728	// 11 was EAGAIN
729	pub const ENOMEM = 12; // Cannot allocate memory
730	pub const EACCES = 13; // Permission denied
731	pub const EFAULT = 14; // Bad address
732	pub const ENOTBLK = 15; // Block device required
733	pub const EBUSY = 16; // Device busy
734	pub const EEXIST = 17; // File exists
735	pub const EXDEV = 18; // Cross-device link
736	pub const ENODEV = 19; // Operation not supported by device
737	pub const ENOTDIR = 20; // Not a directory
738	pub const EISDIR = 21; // Is a directory
739	pub const EINVAL = 22; // Invalid argument
740	pub const ENFILE = 23; // Too many open files in system
741	pub const EMFILE = 24; // Too many open files
742	pub const ENOTTY = 25; // Inappropriate ioctl for device
743	pub const ETXTBSY = 26; // Text file busy
744	pub const EFBIG = 27; // File too large
745	pub const ENOSPC = 28; // No space left on device
746	pub const ESPIPE = 29; // Illegal seek
747	pub const EROFS = 30; // Read-only filesystem
748	pub const EMLINK = 31; // Too many links
749	pub const EPIPE = 32; // Broken pipe
750
751	// math software
752	pub const EDOM = 33; // Numerical argument out of domain
753	pub const ERANGE = 34; // Result too large
754
755	// non-blocking and interrupt i/o
756	pub const EAGAIN = 35; // Resource temporarily unavailable
757	pub const EWOULDBLOCK = EAGAIN; // Operation would block
758	pub const EINPROGRESS = 36; // Operation now in progress
759	pub const EALREADY = 37; // Operation already in progress
760
761	// ipc/network software -- argument errors
762	pub const ENOTSOCK = 38; // Socket operation on non-socket
763	pub const EDESTADDRREQ = 39; // Destination address required
764	pub const EMSGSIZE = 40; // Message too long
765	pub const EPROTOTYPE = 41; // Protocol wrong type for socket
766	pub const ENOPROTOOPT = 42; // Protocol not available
767	pub const EPROTONOSUPPORT = 43; // Protocol not supported
768	pub const ESOCKTNOSUPPORT = 44; // Socket type not supported
769	pub const EOPNOTSUPP = 45; // Operation not supported
770	pub const ENOTSUP = EOPNOTSUPP; // Operation not supported
771	pub const EPFNOSUPPORT = 46; // Protocol family not supported
772	pub const EAFNOSUPPORT = 47; // Address family not supported by protocol family
773	pub const EADDRINUSE = 48; // Address already in use
774	pub const EADDRNOTAVAIL = 49; // Can't assign requested address
775
776	// ipc/network software -- operational errors
777	pub const ENETDOWN = 50; // Network is down
778	pub const ENETUNREACH = 51; // Network is unreachable
779	pub const ENETRESET = 52; // Network dropped connection on reset
780	pub const ECONNABORTED = 53; // Software caused connection abort
781	pub const ECONNRESET = 54; // Connection reset by peer
782	pub const ENOBUFS = 55; // No buffer space available
783	pub const EISCONN = 56; // Socket is already connected
784	pub const ENOTCONN = 57; // Socket is not connected
785	pub const ESHUTDOWN = 58; // Can't send after socket shutdown
786	pub const ETOOMANYREFS = 59; // Too many references: can't splice
787	pub const ETIMEDOUT = 60; // Operation timed out
788	pub const ECONNREFUSED = 61; // Connection refused
789
790	pub const ELOOP = 62; // Too many levels of symbolic links
791	pub const ENAMETOOLONG = 63; // File name too long
792
793	// should be rearranged
794	pub const EHOSTDOWN = 64; // Host is down
795	pub const EHOSTUNREACH = 65; // No route to host
796	pub const ENOTEMPTY = 66; // Directory not empty
797
798	// quotas & mush
799	pub const EPROCLIM = 67; // Too many processes
800	pub const EUSERS = 68; // Too many users
801	pub const EDQUOT = 69; // Disc quota exceeded
802
803	// Network File System
804	pub const ESTALE = 70; // Stale NFS file handle
805	pub const EREMOTE = 71; // Too many levels of remote in path
806	pub const EBADRPC = 72; // RPC struct is bad
807	pub const ERPCMISMATCH = 73; // RPC version wrong
808	pub const EPROGUNAVAIL = 74; // RPC prog. not avail
809	pub const EPROGMISMATCH = 75; // Program version wrong
810	pub const EPROCUNAVAIL = 76; // Bad procedure for program
811
812	pub const ENOLCK = 77; // No locks available
813	pub const ENOSYS = 78; // Function not implemented
814
815	pub const EFTYPE = 79; // Inappropriate file type or format
816	pub const EAUTH = 80; // Authentication error
817	pub const ENEEDAUTH = 81; // Need authenticator
818	pub const EIDRM = 82; // Identifier removed
819	pub const ENOMSG = 83; // No message of desired type
820	pub const EOVERFLOW = 84; // Value too large to be stored in data type
821	pub const ECANCELED = 85; // Operation canceled
822	pub const EILSEQ = 86; // Illegal byte sequence
823	pub const ENOATTR = 87; // Attribute not found
824
825	pub const EDOOFUS = 88; // Programming error
826
827	pub const EBADMSG = 89; // Bad message
828	pub const EMULTIHOP = 90; // Multihop attempted
829	pub const ENOLINK = 91; // Link has been severed
830	pub const EPROTO = 92; // Protocol error
831
832	pub const ENOTCAPABLE = 93; // Capabilities insufficient
833	pub const ECAPMODE = 94; // Not permitted in capability mode
834	pub const ENOTRECOVERABLE = 95; // State not recoverable
835	pub const EOWNERDEAD = 96; // Previous owner died
836
837	pub const ELAST = 96; // Must be equal largest errno

std/os/bits/linux.zig created+931

...	@@ -0,0 +1,931 @@
1	const builtin = @import("builtin");
2	const std = @import("../../std.zig");
3	const maxInt = std.math.maxInt;
4	use @import("../bits.zig");
5
6	pub use @import("linux/errno.zig");
7	pub use switch (builtin.arch) {
8	.x86_64 => @import("linux/x86_64.zig"),
9	.aarch64 => @import("linux/arm64.zig"),
10	else => struct {},
11	};
12
13	pub const pid_t = i32;
14	pub const fd_t = i32;
15
16	pub const PATH_MAX = 4096;
17	pub const IOV_MAX = 1024;
18
19	pub const STDIN_FILENO = 0;
20	pub const STDOUT_FILENO = 1;
21	pub const STDERR_FILENO = 2;
22
23	pub const FUTEX_WAIT = 0;
24	pub const FUTEX_WAKE = 1;
25	pub const FUTEX_FD = 2;
26	pub const FUTEX_REQUEUE = 3;
27	pub const FUTEX_CMP_REQUEUE = 4;
28	pub const FUTEX_WAKE_OP = 5;
29	pub const FUTEX_LOCK_PI = 6;
30	pub const FUTEX_UNLOCK_PI = 7;
31	pub const FUTEX_TRYLOCK_PI = 8;
32	pub const FUTEX_WAIT_BITSET = 9;
33
34	pub const FUTEX_PRIVATE_FLAG = 128;
35
36	pub const FUTEX_CLOCK_REALTIME = 256;
37
38	pub const PROT_NONE = 0;
39	pub const PROT_READ = 1;
40	pub const PROT_WRITE = 2;
41	pub const PROT_EXEC = 4;
42	pub const PROT_GROWSDOWN = 0x01000000;
43	pub const PROT_GROWSUP = 0x02000000;
44
45	pub const MAP_FAILED = @intToPtr(*c_void, maxInt(usize));
46	pub const MAP_SHARED = 0x01;
47	pub const MAP_PRIVATE = 0x02;
48	pub const MAP_TYPE = 0x0f;
49	pub const MAP_FIXED = 0x10;
50	pub const MAP_ANONYMOUS = 0x20;
51	pub const MAP_NORESERVE = 0x4000;
52	pub const MAP_GROWSDOWN = 0x0100;
53	pub const MAP_DENYWRITE = 0x0800;
54	pub const MAP_EXECUTABLE = 0x1000;
55	pub const MAP_LOCKED = 0x2000;
56	pub const MAP_POPULATE = 0x8000;
57	pub const MAP_NONBLOCK = 0x10000;
58	pub const MAP_STACK = 0x20000;
59	pub const MAP_HUGETLB = 0x40000;
60	pub const MAP_FILE = 0;
61
62	pub const F_OK = 0;
63	pub const X_OK = 1;
64	pub const W_OK = 2;
65	pub const R_OK = 4;
66
67	pub const WNOHANG = 1;
68	pub const WUNTRACED = 2;
69	pub const WSTOPPED = 2;
70	pub const WEXITED = 4;
71	pub const WCONTINUED = 8;
72	pub const WNOWAIT = 0x1000000;
73
74	pub const SA_NOCLDSTOP = 1;
75	pub const SA_NOCLDWAIT = 2;
76	pub const SA_SIGINFO = 4;
77	pub const SA_ONSTACK = 0x08000000;
78	pub const SA_RESTART = 0x10000000;
79	pub const SA_NODEFER = 0x40000000;
80	pub const SA_RESETHAND = 0x80000000;
81	pub const SA_RESTORER = 0x04000000;
82
83	pub const SIGHUP = 1;
84	pub const SIGINT = 2;
85	pub const SIGQUIT = 3;
86	pub const SIGILL = 4;
87	pub const SIGTRAP = 5;
88	pub const SIGABRT = 6;
89	pub const SIGIOT = SIGABRT;
90	pub const SIGBUS = 7;
91	pub const SIGFPE = 8;
92	pub const SIGKILL = 9;
93	pub const SIGUSR1 = 10;
94	pub const SIGSEGV = 11;
95	pub const SIGUSR2 = 12;
96	pub const SIGPIPE = 13;
97	pub const SIGALRM = 14;
98	pub const SIGTERM = 15;
99	pub const SIGSTKFLT = 16;
100	pub const SIGCHLD = 17;
101	pub const SIGCONT = 18;
102	pub const SIGSTOP = 19;
103	pub const SIGTSTP = 20;
104	pub const SIGTTIN = 21;
105	pub const SIGTTOU = 22;
106	pub const SIGURG = 23;
107	pub const SIGXCPU = 24;
108	pub const SIGXFSZ = 25;
109	pub const SIGVTALRM = 26;
110	pub const SIGPROF = 27;
111	pub const SIGWINCH = 28;
112	pub const SIGIO = 29;
113	pub const SIGPOLL = 29;
114	pub const SIGPWR = 30;
115	pub const SIGSYS = 31;
116	pub const SIGUNUSED = SIGSYS;
117
118	pub const O_RDONLY = 0o0;
119	pub const O_WRONLY = 0o1;
120	pub const O_RDWR = 0o2;
121
122	pub const SEEK_SET = 0;
123	pub const SEEK_CUR = 1;
124	pub const SEEK_END = 2;
125
126	pub const SIG_BLOCK = 0;
127	pub const SIG_UNBLOCK = 1;
128	pub const SIG_SETMASK = 2;
129
130	pub const PROTO_ip = 0o000;
131	pub const PROTO_icmp = 0o001;
132	pub const PROTO_igmp = 0o002;
133	pub const PROTO_ggp = 0o003;
134	pub const PROTO_ipencap = 0o004;
135	pub const PROTO_st = 0o005;
136	pub const PROTO_tcp = 0o006;
137	pub const PROTO_egp = 0o010;
138	pub const PROTO_pup = 0o014;
139	pub const PROTO_udp = 0o021;
140	pub const PROTO_hmp = 0o024;
141	pub const PROTO_xns_idp = 0o026;
142	pub const PROTO_rdp = 0o033;
143	pub const PROTO_iso_tp4 = 0o035;
144	pub const PROTO_xtp = 0o044;
145	pub const PROTO_ddp = 0o045;
146	pub const PROTO_idpr_cmtp = 0o046;
147	pub const PROTO_ipv6 = 0o051;
148	pub const PROTO_ipv6_route = 0o053;
149	pub const PROTO_ipv6_frag = 0o054;
150	pub const PROTO_idrp = 0o055;
151	pub const PROTO_rsvp = 0o056;
152	pub const PROTO_gre = 0o057;
153	pub const PROTO_esp = 0o062;
154	pub const PROTO_ah = 0o063;
155	pub const PROTO_skip = 0o071;
156	pub const PROTO_ipv6_icmp = 0o072;
157	pub const PROTO_ipv6_nonxt = 0o073;
158	pub const PROTO_ipv6_opts = 0o074;
159	pub const PROTO_rspf = 0o111;
160	pub const PROTO_vmtp = 0o121;
161	pub const PROTO_ospf = 0o131;
162	pub const PROTO_ipip = 0o136;
163	pub const PROTO_encap = 0o142;
164	pub const PROTO_pim = 0o147;
165	pub const PROTO_raw = 0o377;
166
167	pub const SHUT_RD = 0;
168	pub const SHUT_WR = 1;
169	pub const SHUT_RDWR = 2;
170
171	pub const SOCK_STREAM = 1;
172	pub const SOCK_DGRAM = 2;
173	pub const SOCK_RAW = 3;
174	pub const SOCK_RDM = 4;
175	pub const SOCK_SEQPACKET = 5;
176	pub const SOCK_DCCP = 6;
177	pub const SOCK_PACKET = 10;
178	pub const SOCK_CLOEXEC = 0o2000000;
179	pub const SOCK_NONBLOCK = 0o4000;
180
181	pub const PF_UNSPEC = 0;
182	pub const PF_LOCAL = 1;
183	pub const PF_UNIX = PF_LOCAL;
184	pub const PF_FILE = PF_LOCAL;
185	pub const PF_INET = 2;
186	pub const PF_AX25 = 3;
187	pub const PF_IPX = 4;
188	pub const PF_APPLETALK = 5;
189	pub const PF_NETROM = 6;
190	pub const PF_BRIDGE = 7;
191	pub const PF_ATMPVC = 8;
192	pub const PF_X25 = 9;
193	pub const PF_INET6 = 10;
194	pub const PF_ROSE = 11;
195	pub const PF_DECnet = 12;
196	pub const PF_NETBEUI = 13;
197	pub const PF_SECURITY = 14;
198	pub const PF_KEY = 15;
199	pub const PF_NETLINK = 16;
200	pub const PF_ROUTE = PF_NETLINK;
201	pub const PF_PACKET = 17;
202	pub const PF_ASH = 18;
203	pub const PF_ECONET = 19;
204	pub const PF_ATMSVC = 20;
205	pub const PF_RDS = 21;
206	pub const PF_SNA = 22;
207	pub const PF_IRDA = 23;
208	pub const PF_PPPOX = 24;
209	pub const PF_WANPIPE = 25;
210	pub const PF_LLC = 26;
211	pub const PF_IB = 27;
212	pub const PF_MPLS = 28;
213	pub const PF_CAN = 29;
214	pub const PF_TIPC = 30;
215	pub const PF_BLUETOOTH = 31;
216	pub const PF_IUCV = 32;
217	pub const PF_RXRPC = 33;
218	pub const PF_ISDN = 34;
219	pub const PF_PHONET = 35;
220	pub const PF_IEEE802154 = 36;
221	pub const PF_CAIF = 37;
222	pub const PF_ALG = 38;
223	pub const PF_NFC = 39;
224	pub const PF_VSOCK = 40;
225	pub const PF_KCM = 41;
226	pub const PF_QIPCRTR = 42;
227	pub const PF_SMC = 43;
228	pub const PF_MAX = 44;
229
230	pub const AF_UNSPEC = PF_UNSPEC;
231	pub const AF_LOCAL = PF_LOCAL;
232	pub const AF_UNIX = AF_LOCAL;
233	pub const AF_FILE = AF_LOCAL;
234	pub const AF_INET = PF_INET;
235	pub const AF_AX25 = PF_AX25;
236	pub const AF_IPX = PF_IPX;
237	pub const AF_APPLETALK = PF_APPLETALK;
238	pub const AF_NETROM = PF_NETROM;
239	pub const AF_BRIDGE = PF_BRIDGE;
240	pub const AF_ATMPVC = PF_ATMPVC;
241	pub const AF_X25 = PF_X25;
242	pub const AF_INET6 = PF_INET6;
243	pub const AF_ROSE = PF_ROSE;
244	pub const AF_DECnet = PF_DECnet;
245	pub const AF_NETBEUI = PF_NETBEUI;
246	pub const AF_SECURITY = PF_SECURITY;
247	pub const AF_KEY = PF_KEY;
248	pub const AF_NETLINK = PF_NETLINK;
249	pub const AF_ROUTE = PF_ROUTE;
250	pub const AF_PACKET = PF_PACKET;
251	pub const AF_ASH = PF_ASH;
252	pub const AF_ECONET = PF_ECONET;
253	pub const AF_ATMSVC = PF_ATMSVC;
254	pub const AF_RDS = PF_RDS;
255	pub const AF_SNA = PF_SNA;
256	pub const AF_IRDA = PF_IRDA;
257	pub const AF_PPPOX = PF_PPPOX;
258	pub const AF_WANPIPE = PF_WANPIPE;
259	pub const AF_LLC = PF_LLC;
260	pub const AF_IB = PF_IB;
261	pub const AF_MPLS = PF_MPLS;
262	pub const AF_CAN = PF_CAN;
263	pub const AF_TIPC = PF_TIPC;
264	pub const AF_BLUETOOTH = PF_BLUETOOTH;
265	pub const AF_IUCV = PF_IUCV;
266	pub const AF_RXRPC = PF_RXRPC;
267	pub const AF_ISDN = PF_ISDN;
268	pub const AF_PHONET = PF_PHONET;
269	pub const AF_IEEE802154 = PF_IEEE802154;
270	pub const AF_CAIF = PF_CAIF;
271	pub const AF_ALG = PF_ALG;
272	pub const AF_NFC = PF_NFC;
273	pub const AF_VSOCK = PF_VSOCK;
274	pub const AF_KCM = PF_KCM;
275	pub const AF_QIPCRTR = PF_QIPCRTR;
276	pub const AF_SMC = PF_SMC;
277	pub const AF_MAX = PF_MAX;
278
279	pub const SO_DEBUG = 1;
280	pub const SO_REUSEADDR = 2;
281	pub const SO_TYPE = 3;
282	pub const SO_ERROR = 4;
283	pub const SO_DONTROUTE = 5;
284	pub const SO_BROADCAST = 6;
285	pub const SO_SNDBUF = 7;
286	pub const SO_RCVBUF = 8;
287	pub const SO_KEEPALIVE = 9;
288	pub const SO_OOBINLINE = 10;
289	pub const SO_NO_CHECK = 11;
290	pub const SO_PRIORITY = 12;
291	pub const SO_LINGER = 13;
292	pub const SO_BSDCOMPAT = 14;
293	pub const SO_REUSEPORT = 15;
294	pub const SO_PASSCRED = 16;
295	pub const SO_PEERCRED = 17;
296	pub const SO_RCVLOWAT = 18;
297	pub const SO_SNDLOWAT = 19;
298	pub const SO_RCVTIMEO = 20;
299	pub const SO_SNDTIMEO = 21;
300	pub const SO_ACCEPTCONN = 30;
301	pub const SO_SNDBUFFORCE = 32;
302	pub const SO_RCVBUFFORCE = 33;
303	pub const SO_PROTOCOL = 38;
304	pub const SO_DOMAIN = 39;
305
306	pub const SO_SECURITY_AUTHENTICATION = 22;
307	pub const SO_SECURITY_ENCRYPTION_TRANSPORT = 23;
308	pub const SO_SECURITY_ENCRYPTION_NETWORK = 24;
309
310	pub const SO_BINDTODEVICE = 25;
311
312	pub const SO_ATTACH_FILTER = 26;
313	pub const SO_DETACH_FILTER = 27;
314	pub const SO_GET_FILTER = SO_ATTACH_FILTER;
315
316	pub const SO_PEERNAME = 28;
317	pub const SO_TIMESTAMP = 29;
318	pub const SCM_TIMESTAMP = SO_TIMESTAMP;
319
320	pub const SO_PEERSEC = 31;
321	pub const SO_PASSSEC = 34;
322	pub const SO_TIMESTAMPNS = 35;
323	pub const SCM_TIMESTAMPNS = SO_TIMESTAMPNS;
324	pub const SO_MARK = 36;
325	pub const SO_TIMESTAMPING = 37;
326	pub const SCM_TIMESTAMPING = SO_TIMESTAMPING;
327	pub const SO_RXQ_OVFL = 40;
328	pub const SO_WIFI_STATUS = 41;
329	pub const SCM_WIFI_STATUS = SO_WIFI_STATUS;
330	pub const SO_PEEK_OFF = 42;
331	pub const SO_NOFCS = 43;
332	pub const SO_LOCK_FILTER = 44;
333	pub const SO_SELECT_ERR_QUEUE = 45;
334	pub const SO_BUSY_POLL = 46;
335	pub const SO_MAX_PACING_RATE = 47;
336	pub const SO_BPF_EXTENSIONS = 48;
337	pub const SO_INCOMING_CPU = 49;
338	pub const SO_ATTACH_BPF = 50;
339	pub const SO_DETACH_BPF = SO_DETACH_FILTER;
340	pub const SO_ATTACH_REUSEPORT_CBPF = 51;
341	pub const SO_ATTACH_REUSEPORT_EBPF = 52;
342	pub const SO_CNX_ADVICE = 53;
343	pub const SCM_TIMESTAMPING_OPT_STATS = 54;
344	pub const SO_MEMINFO = 55;
345	pub const SO_INCOMING_NAPI_ID = 56;
346	pub const SO_COOKIE = 57;
347	pub const SCM_TIMESTAMPING_PKTINFO = 58;
348	pub const SO_PEERGROUPS = 59;
349	pub const SO_ZEROCOPY = 60;
350
351	pub const SOL_SOCKET = 1;
352
353	pub const SOL_IP = 0;
354	pub const SOL_IPV6 = 41;
355	pub const SOL_ICMPV6 = 58;
356
357	pub const SOL_RAW = 255;
358	pub const SOL_DECNET = 261;
359	pub const SOL_X25 = 262;
360	pub const SOL_PACKET = 263;
361	pub const SOL_ATM = 264;
362	pub const SOL_AAL = 265;
363	pub const SOL_IRDA = 266;
364	pub const SOL_NETBEUI = 267;
365	pub const SOL_LLC = 268;
366	pub const SOL_DCCP = 269;
367	pub const SOL_NETLINK = 270;
368	pub const SOL_TIPC = 271;
369	pub const SOL_RXRPC = 272;
370	pub const SOL_PPPOL2TP = 273;
371	pub const SOL_BLUETOOTH = 274;
372	pub const SOL_PNPIPE = 275;
373	pub const SOL_RDS = 276;
374	pub const SOL_IUCV = 277;
375	pub const SOL_CAIF = 278;
376	pub const SOL_ALG = 279;
377	pub const SOL_NFC = 280;
378	pub const SOL_KCM = 281;
379	pub const SOL_TLS = 282;
380
381	pub const SOMAXCONN = 128;
382
383	pub const MSG_OOB = 0x0001;
384	pub const MSG_PEEK = 0x0002;
385	pub const MSG_DONTROUTE = 0x0004;
386	pub const MSG_CTRUNC = 0x0008;
387	pub const MSG_PROXY = 0x0010;
388	pub const MSG_TRUNC = 0x0020;
389	pub const MSG_DONTWAIT = 0x0040;
390	pub const MSG_EOR = 0x0080;
391	pub const MSG_WAITALL = 0x0100;
392	pub const MSG_FIN = 0x0200;
393	pub const MSG_SYN = 0x0400;
394	pub const MSG_CONFIRM = 0x0800;
395	pub const MSG_RST = 0x1000;
396	pub const MSG_ERRQUEUE = 0x2000;
397	pub const MSG_NOSIGNAL = 0x4000;
398	pub const MSG_MORE = 0x8000;
399	pub const MSG_WAITFORONE = 0x10000;
400	pub const MSG_BATCH = 0x40000;
401	pub const MSG_ZEROCOPY = 0x4000000;
402	pub const MSG_FASTOPEN = 0x20000000;
403	pub const MSG_CMSG_CLOEXEC = 0x40000000;
404
405	pub const DT_UNKNOWN = 0;
406	pub const DT_FIFO = 1;
407	pub const DT_CHR = 2;
408	pub const DT_DIR = 4;
409	pub const DT_BLK = 6;
410	pub const DT_REG = 8;
411	pub const DT_LNK = 10;
412	pub const DT_SOCK = 12;
413	pub const DT_WHT = 14;
414
415	pub const TCGETS = 0x5401;
416	pub const TCSETS = 0x5402;
417	pub const TCSETSW = 0x5403;
418	pub const TCSETSF = 0x5404;
419	pub const TCGETA = 0x5405;
420	pub const TCSETA = 0x5406;
421	pub const TCSETAW = 0x5407;
422	pub const TCSETAF = 0x5408;
423	pub const TCSBRK = 0x5409;
424	pub const TCXONC = 0x540A;
425	pub const TCFLSH = 0x540B;
426	pub const TIOCEXCL = 0x540C;
427	pub const TIOCNXCL = 0x540D;
428	pub const TIOCSCTTY = 0x540E;
429	pub const TIOCGPGRP = 0x540F;
430	pub const TIOCSPGRP = 0x5410;
431	pub const TIOCOUTQ = 0x5411;
432	pub const TIOCSTI = 0x5412;
433	pub const TIOCGWINSZ = 0x5413;
434	pub const TIOCSWINSZ = 0x5414;
435	pub const TIOCMGET = 0x5415;
436	pub const TIOCMBIS = 0x5416;
437	pub const TIOCMBIC = 0x5417;
438	pub const TIOCMSET = 0x5418;
439	pub const TIOCGSOFTCAR = 0x5419;
440	pub const TIOCSSOFTCAR = 0x541A;
441	pub const FIONREAD = 0x541B;
442	pub const TIOCINQ = FIONREAD;
443	pub const TIOCLINUX = 0x541C;
444	pub const TIOCCONS = 0x541D;
445	pub const TIOCGSERIAL = 0x541E;
446	pub const TIOCSSERIAL = 0x541F;
447	pub const TIOCPKT = 0x5420;
448	pub const FIONBIO = 0x5421;
449	pub const TIOCNOTTY = 0x5422;
450	pub const TIOCSETD = 0x5423;
451	pub const TIOCGETD = 0x5424;
452	pub const TCSBRKP = 0x5425;
453	pub const TIOCSBRK = 0x5427;
454	pub const TIOCCBRK = 0x5428;
455	pub const TIOCGSID = 0x5429;
456	pub const TIOCGRS485 = 0x542E;
457	pub const TIOCSRS485 = 0x542F;
458	pub const TIOCGPTN = 0x80045430;
459	pub const TIOCSPTLCK = 0x40045431;
460	pub const TIOCGDEV = 0x80045432;
461	pub const TCGETX = 0x5432;
462	pub const TCSETX = 0x5433;
463	pub const TCSETXF = 0x5434;
464	pub const TCSETXW = 0x5435;
465	pub const TIOCSIG = 0x40045436;
466	pub const TIOCVHANGUP = 0x5437;
467	pub const TIOCGPKT = 0x80045438;
468	pub const TIOCGPTLCK = 0x80045439;
469	pub const TIOCGEXCL = 0x80045440;
470
471	pub const EPOLL_CLOEXEC = O_CLOEXEC;
472
473	pub const EPOLL_CTL_ADD = 1;
474	pub const EPOLL_CTL_DEL = 2;
475	pub const EPOLL_CTL_MOD = 3;
476
477	pub const EPOLLIN = 0x001;
478	pub const EPOLLPRI = 0x002;
479	pub const EPOLLOUT = 0x004;
480	pub const EPOLLRDNORM = 0x040;
481	pub const EPOLLRDBAND = 0x080;
482	pub const EPOLLWRNORM = 0x100;
483	pub const EPOLLWRBAND = 0x200;
484	pub const EPOLLMSG = 0x400;
485	pub const EPOLLERR = 0x008;
486	pub const EPOLLHUP = 0x010;
487	pub const EPOLLRDHUP = 0x2000;
488	pub const EPOLLEXCLUSIVE = (u32(1) << 28);
489	pub const EPOLLWAKEUP = (u32(1) << 29);
490	pub const EPOLLONESHOT = (u32(1) << 30);
491	pub const EPOLLET = (u32(1) << 31);
492
493	pub const CLOCK_REALTIME = 0;
494	pub const CLOCK_MONOTONIC = 1;
495	pub const CLOCK_PROCESS_CPUTIME_ID = 2;
496	pub const CLOCK_THREAD_CPUTIME_ID = 3;
497	pub const CLOCK_MONOTONIC_RAW = 4;
498	pub const CLOCK_REALTIME_COARSE = 5;
499	pub const CLOCK_MONOTONIC_COARSE = 6;
500	pub const CLOCK_BOOTTIME = 7;
501	pub const CLOCK_REALTIME_ALARM = 8;
502	pub const CLOCK_BOOTTIME_ALARM = 9;
503	pub const CLOCK_SGI_CYCLE = 10;
504	pub const CLOCK_TAI = 11;
505
506	pub const CSIGNAL = 0x000000ff;
507	pub const CLONE_VM = 0x00000100;
508	pub const CLONE_FS = 0x00000200;
509	pub const CLONE_FILES = 0x00000400;
510	pub const CLONE_SIGHAND = 0x00000800;
511	pub const CLONE_PTRACE = 0x00002000;
512	pub const CLONE_VFORK = 0x00004000;
513	pub const CLONE_PARENT = 0x00008000;
514	pub const CLONE_THREAD = 0x00010000;
515	pub const CLONE_NEWNS = 0x00020000;
516	pub const CLONE_SYSVSEM = 0x00040000;
517	pub const CLONE_SETTLS = 0x00080000;
518	pub const CLONE_PARENT_SETTID = 0x00100000;
519	pub const CLONE_CHILD_CLEARTID = 0x00200000;
520	pub const CLONE_DETACHED = 0x00400000;
521	pub const CLONE_UNTRACED = 0x00800000;
522	pub const CLONE_CHILD_SETTID = 0x01000000;
523	pub const CLONE_NEWCGROUP = 0x02000000;
524	pub const CLONE_NEWUTS = 0x04000000;
525	pub const CLONE_NEWIPC = 0x08000000;
526	pub const CLONE_NEWUSER = 0x10000000;
527	pub const CLONE_NEWPID = 0x20000000;
528	pub const CLONE_NEWNET = 0x40000000;
529	pub const CLONE_IO = 0x80000000;
530
531	pub const EFD_SEMAPHORE = 1;
532	pub const EFD_CLOEXEC = O_CLOEXEC;
533	pub const EFD_NONBLOCK = O_NONBLOCK;
534
535	pub const MS_RDONLY = 1;
536	pub const MS_NOSUID = 2;
537	pub const MS_NODEV = 4;
538	pub const MS_NOEXEC = 8;
539	pub const MS_SYNCHRONOUS = 16;
540	pub const MS_REMOUNT = 32;
541	pub const MS_MANDLOCK = 64;
542	pub const MS_DIRSYNC = 128;
543	pub const MS_NOATIME = 1024;
544	pub const MS_NODIRATIME = 2048;
545	pub const MS_BIND = 4096;
546	pub const MS_MOVE = 8192;
547	pub const MS_REC = 16384;
548	pub const MS_SILENT = 32768;
549	pub const MS_POSIXACL = (1 << 16);
550	pub const MS_UNBINDABLE = (1 << 17);
551	pub const MS_PRIVATE = (1 << 18);
552	pub const MS_SLAVE = (1 << 19);
553	pub const MS_SHARED = (1 << 20);
554	pub const MS_RELATIME = (1 << 21);
555	pub const MS_KERNMOUNT = (1 << 22);
556	pub const MS_I_VERSION = (1 << 23);
557	pub const MS_STRICTATIME = (1 << 24);
558	pub const MS_LAZYTIME = (1 << 25);
559	pub const MS_NOREMOTELOCK = (1 << 27);
560	pub const MS_NOSEC = (1 << 28);
561	pub const MS_BORN = (1 << 29);
562	pub const MS_ACTIVE = (1 << 30);
563	pub const MS_NOUSER = (1 << 31);
564
565	pub const MS_RMT_MASK = (MS_RDONLY \| MS_SYNCHRONOUS \| MS_MANDLOCK \| MS_I_VERSION \| MS_LAZYTIME);
566
567	pub const MS_MGC_VAL = 0xc0ed0000;
568	pub const MS_MGC_MSK = 0xffff0000;
569
570	pub const MNT_FORCE = 1;
571	pub const MNT_DETACH = 2;
572	pub const MNT_EXPIRE = 4;
573	pub const UMOUNT_NOFOLLOW = 8;
574
575	pub const IN_CLOEXEC = O_CLOEXEC;
576	pub const IN_NONBLOCK = O_NONBLOCK;
577
578	pub const IN_ACCESS = 0x00000001;
579	pub const IN_MODIFY = 0x00000002;
580	pub const IN_ATTRIB = 0x00000004;
581	pub const IN_CLOSE_WRITE = 0x00000008;
582	pub const IN_CLOSE_NOWRITE = 0x00000010;
583	pub const IN_CLOSE = IN_CLOSE_WRITE \| IN_CLOSE_NOWRITE;
584	pub const IN_OPEN = 0x00000020;
585	pub const IN_MOVED_FROM = 0x00000040;
586	pub const IN_MOVED_TO = 0x00000080;
587	pub const IN_MOVE = IN_MOVED_FROM \| IN_MOVED_TO;
588	pub const IN_CREATE = 0x00000100;
589	pub const IN_DELETE = 0x00000200;
590	pub const IN_DELETE_SELF = 0x00000400;
591	pub const IN_MOVE_SELF = 0x00000800;
592	pub const IN_ALL_EVENTS = 0x00000fff;
593
594	pub const IN_UNMOUNT = 0x00002000;
595	pub const IN_Q_OVERFLOW = 0x00004000;
596	pub const IN_IGNORED = 0x00008000;
597
598	pub const IN_ONLYDIR = 0x01000000;
599	pub const IN_DONT_FOLLOW = 0x02000000;
600	pub const IN_EXCL_UNLINK = 0x04000000;
601	pub const IN_MASK_ADD = 0x20000000;
602
603	pub const IN_ISDIR = 0x40000000;
604	pub const IN_ONESHOT = 0x80000000;
605
606	pub const S_IFMT = 0o170000;
607
608	pub const S_IFDIR = 0o040000;
609	pub const S_IFCHR = 0o020000;
610	pub const S_IFBLK = 0o060000;
611	pub const S_IFREG = 0o100000;
612	pub const S_IFIFO = 0o010000;
613	pub const S_IFLNK = 0o120000;
614	pub const S_IFSOCK = 0o140000;
615
616	pub const S_ISUID = 0o4000;
617	pub const S_ISGID = 0o2000;
618	pub const S_ISVTX = 0o1000;
619	pub const S_IRUSR = 0o400;
620	pub const S_IWUSR = 0o200;
621	pub const S_IXUSR = 0o100;
622	pub const S_IRWXU = 0o700;
623	pub const S_IRGRP = 0o040;
624	pub const S_IWGRP = 0o020;
625	pub const S_IXGRP = 0o010;
626	pub const S_IRWXG = 0o070;
627	pub const S_IROTH = 0o004;
628	pub const S_IWOTH = 0o002;
629	pub const S_IXOTH = 0o001;
630	pub const S_IRWXO = 0o007;
631
632	pub fn S_ISREG(m: u32) bool {
633	return m & S_IFMT == S_IFREG;
634	}
635
636	pub fn S_ISDIR(m: u32) bool {
637	return m & S_IFMT == S_IFDIR;
638	}
639
640	pub fn S_ISCHR(m: u32) bool {
641	return m & S_IFMT == S_IFCHR;
642	}
643
644	pub fn S_ISBLK(m: u32) bool {
645	return m & S_IFMT == S_IFBLK;
646	}
647
648	pub fn S_ISFIFO(m: u32) bool {
649	return m & S_IFMT == S_IFIFO;
650	}
651
652	pub fn S_ISLNK(m: u32) bool {
653	return m & S_IFMT == S_IFLNK;
654	}
655
656	pub fn S_ISSOCK(m: u32) bool {
657	return m & S_IFMT == S_IFSOCK;
658	}
659
660	pub const TFD_NONBLOCK = O_NONBLOCK;
661	pub const TFD_CLOEXEC = O_CLOEXEC;
662
663	pub const TFD_TIMER_ABSTIME = 1;
664	pub const TFD_TIMER_CANCEL_ON_SET = (1 << 1);
665
666	pub fn WEXITSTATUS(s: u32) u32 {
667	return (s & 0xff00) >> 8;
668	}
669	pub fn WTERMSIG(s: u32) u32 {
670	return s & 0x7f;
671	}
672	pub fn WSTOPSIG(s: u32) u32 {
673	return WEXITSTATUS(s);
674	}
675	pub fn WIFEXITED(s: u32) bool {
676	return WTERMSIG(s) == 0;
677	}
678	pub fn WIFSTOPPED(s: u32) bool {
679	return @intCast(u16, ((s & 0xffff) *% 0x10001) >> 8) > 0x7f00;
680	}
681	pub fn WIFSIGNALED(s: u32) bool {
682	return (s & 0xffff) -% 1 < 0xff;
683	}
684
685	pub const winsize = extern struct {
686	ws_row: u16,
687	ws_col: u16,
688	ws_xpixel: u16,
689	ws_ypixel: u16,
690	};
691
692	pub const NSIG = 65;
693	pub const sigset_t = [128 / @sizeOf(usize)]usize;
694	pub const all_mask = []u32{ 0xffffffff, 0xffffffff };
695	pub const app_mask = []u32{ 0xfffffffc, 0x7fffffff };
696
697	pub const k_sigaction = extern struct {
698	handler: extern fn (i32) void,
699	flags: usize,
700	restorer: extern fn () void,
701	mask: [2]u32,
702	};
703
704	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
705	pub const Sigaction = struct {
706	handler: extern fn (i32) void,
707	mask: sigset_t,
708	flags: u32,
709	};
710
711	pub const SIG_ERR = @intToPtr(extern fn (i32) void, maxInt(usize));
712	pub const SIG_DFL = @intToPtr(extern fn (i32) void, 0);
713	pub const SIG_IGN = @intToPtr(extern fn (i32) void, 1);
714	pub const empty_sigset = []usize{0} ** sigset_t.len;
715
716	pub const in_port_t = u16;
717	pub const sa_family_t = u16;
718	pub const socklen_t = u32;
719
720	/// This intentionally only has ip4 and ip6
721	pub const sockaddr = extern union {
722	in: sockaddr_in,
723	in6: sockaddr_in6,
724	};
725
726	pub const sockaddr_in = extern struct {
727	family: sa_family_t,
728	port: in_port_t,
729	addr: u32,
730	zero: [8]u8,
731	};
732
733	pub const sockaddr_in6 = extern struct {
734	family: sa_family_t,
735	port: in_port_t,
736	flowinfo: u32,
737	addr: [16]u8,
738	scope_id: u32,
739	};
740
741	pub const sockaddr_un = extern struct {
742	family: sa_family_t,
743	path: [108]u8,
744	};
745
746	pub const mmsghdr = extern struct {
747	msg_hdr: msghdr,
748	msg_len: u32,
749	};
750
751	pub const mmsghdr_const = extern struct {
752	msg_hdr: msghdr_const,
753	msg_len: u32,
754	};
755
756	pub const epoll_data = extern union {
757	ptr: usize,
758	fd: i32,
759	@"u32": u32,
760	@"u64": u64,
761	};
762
763	// On x86_64 the structure is packed so that it matches the definition of its
764	// 32bit counterpart
765	pub const epoll_event = if (builtin.arch != .x86_64)
766	extern struct {
767	events: u32,
768	data: epoll_data,
769	}
770	else
771	packed struct {
772	events: u32,
773	data: epoll_data,
774	};
775
776	pub const _LINUX_CAPABILITY_VERSION_1 = 0x19980330;
777	pub const _LINUX_CAPABILITY_U32S_1 = 1;
778
779	pub const _LINUX_CAPABILITY_VERSION_2 = 0x20071026;
780	pub const _LINUX_CAPABILITY_U32S_2 = 2;
781
782	pub const _LINUX_CAPABILITY_VERSION_3 = 0x20080522;
783	pub const _LINUX_CAPABILITY_U32S_3 = 2;
784
785	pub const VFS_CAP_REVISION_MASK = 0xFF000000;
786	pub const VFS_CAP_REVISION_SHIFT = 24;
787	pub const VFS_CAP_FLAGS_MASK = ~VFS_CAP_REVISION_MASK;
788	pub const VFS_CAP_FLAGS_EFFECTIVE = 0x000001;
789
790	pub const VFS_CAP_REVISION_1 = 0x01000000;
791	pub const VFS_CAP_U32_1 = 1;
792	pub const XATTR_CAPS_SZ_1 = @sizeOf(u32) * (1 + 2 * VFS_CAP_U32_1);
793
794	pub const VFS_CAP_REVISION_2 = 0x02000000;
795	pub const VFS_CAP_U32_2 = 2;
796	pub const XATTR_CAPS_SZ_2 = @sizeOf(u32) * (1 + 2 * VFS_CAP_U32_2);
797
798	pub const XATTR_CAPS_SZ = XATTR_CAPS_SZ_2;
799	pub const VFS_CAP_U32 = VFS_CAP_U32_2;
800	pub const VFS_CAP_REVISION = VFS_CAP_REVISION_2;
801
802	pub const vfs_cap_data = extern struct {
803	//all of these are mandated as little endian
804	//when on disk.
805	const Data = struct {
806	permitted: u32,
807	inheritable: u32,
808	};
809
810	magic_etc: u32,
811	data: [VFS_CAP_U32]Data,
812	};
813
814	pub const CAP_CHOWN = 0;
815	pub const CAP_DAC_OVERRIDE = 1;
816	pub const CAP_DAC_READ_SEARCH = 2;
817	pub const CAP_FOWNER = 3;
818	pub const CAP_FSETID = 4;
819	pub const CAP_KILL = 5;
820	pub const CAP_SETGID = 6;
821	pub const CAP_SETUID = 7;
822	pub const CAP_SETPCAP = 8;
823	pub const CAP_LINUX_IMMUTABLE = 9;
824	pub const CAP_NET_BIND_SERVICE = 10;
825	pub const CAP_NET_BROADCAST = 11;
826	pub const CAP_NET_ADMIN = 12;
827	pub const CAP_NET_RAW = 13;
828	pub const CAP_IPC_LOCK = 14;
829	pub const CAP_IPC_OWNER = 15;
830	pub const CAP_SYS_MODULE = 16;
831	pub const CAP_SYS_RAWIO = 17;
832	pub const CAP_SYS_CHROOT = 18;
833	pub const CAP_SYS_PTRACE = 19;
834	pub const CAP_SYS_PACCT = 20;
835	pub const CAP_SYS_ADMIN = 21;
836	pub const CAP_SYS_BOOT = 22;
837	pub const CAP_SYS_NICE = 23;
838	pub const CAP_SYS_RESOURCE = 24;
839	pub const CAP_SYS_TIME = 25;
840	pub const CAP_SYS_TTY_CONFIG = 26;
841	pub const CAP_MKNOD = 27;
842	pub const CAP_LEASE = 28;
843	pub const CAP_AUDIT_WRITE = 29;
844	pub const CAP_AUDIT_CONTROL = 30;
845	pub const CAP_SETFCAP = 31;
846	pub const CAP_MAC_OVERRIDE = 32;
847	pub const CAP_MAC_ADMIN = 33;
848	pub const CAP_SYSLOG = 34;
849	pub const CAP_WAKE_ALARM = 35;
850	pub const CAP_BLOCK_SUSPEND = 36;
851	pub const CAP_AUDIT_READ = 37;
852	pub const CAP_LAST_CAP = CAP_AUDIT_READ;
853
854	pub fn cap_valid(u8: x) bool {
855	return x >= 0 and x <= CAP_LAST_CAP;
856	}
857
858	pub fn CAP_TO_MASK(cap: u8) u32 {
859	return u32(1) << u5(cap & 31);
860	}
861
862	pub fn CAP_TO_INDEX(cap: u8) u8 {
863	return cap >> 5;
864	}
865
866	pub const cap_t = extern struct {
867	hdrp: *cap_user_header_t,
868	datap: *cap_user_data_t,
869	};
870
871	pub const cap_user_header_t = extern struct {
872	version: u32,
873	pid: usize,
874	};
875
876	pub const cap_user_data_t = extern struct {
877	effective: u32,
878	permitted: u32,
879	inheritable: u32,
880	};
881
882	pub const inotify_event = extern struct {
883	wd: i32,
884	mask: u32,
885	cookie: u32,
886	len: u32,
887	//name: [?]u8,
888	};
889
890	pub const dirent64 = extern struct {
891	d_ino: u64,
892	d_off: u64,
893	d_reclen: u16,
894	d_type: u8,
895	d_name: u8, // field address is the address of first byte of name https://github.com/ziglang/zig/issues/173
896	};
897
898	pub const dl_phdr_info = extern struct {
899	dlpi_addr: usize,
900	dlpi_name: ?[*]const u8,
901	dlpi_phdr: [*]std.elf.Phdr,
902	dlpi_phnum: u16,
903	};
904
905	pub const pthread_attr_t = extern struct {
906	__size: [56]u8,
907	__align: c_long,
908	};
909
910	pub const CPU_SETSIZE = 128;
911	pub const cpu_set_t = [CPU_SETSIZE / @sizeOf(usize)]usize;
912	pub const cpu_count_t = @IntType(false, std.math.log2(CPU_SETSIZE * 8));
913
914	pub fn CPU_COUNT(set: cpu_set_t) cpu_count_t {
915	var sum: cpu_count_t = 0;
916	for (set) \|x\| {
917	sum += @popCount(usize, x);
918	}
919	return sum;
920	}
921
922	// TODO port these over
923	//#define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set)
924	//#define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set)
925	//#define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set)
926	//#define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2)
927	//#define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2)
928	//#define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2)
929	//#define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set)
930	//#define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set)
931	//#define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2)

std/os/bits/linux/arm64.zig created+405

...	@@ -0,0 +1,405 @@
1	// arm64-specific declarations that are intended to be imported into the POSIX namespace.
2	// This does include Linux-only APIs.
3
4	const std = @import("../../std.zig");
5	const linux = std.os.linux;
6	const socklen_t = linux.socklen_t;
7	const iovec = linux.iovec;
8	const iovec_const = linux.iovec_const;
9
10	pub const SYS_io_setup = 0;
11	pub const SYS_io_destroy = 1;
12	pub const SYS_io_submit = 2;
13	pub const SYS_io_cancel = 3;
14	pub const SYS_io_getevents = 4;
15	pub const SYS_setxattr = 5;
16	pub const SYS_lsetxattr = 6;
17	pub const SYS_fsetxattr = 7;
18	pub const SYS_getxattr = 8;
19	pub const SYS_lgetxattr = 9;
20	pub const SYS_fgetxattr = 10;
21	pub const SYS_listxattr = 11;
22	pub const SYS_llistxattr = 12;
23	pub const SYS_flistxattr = 13;
24	pub const SYS_removexattr = 14;
25	pub const SYS_lremovexattr = 15;
26	pub const SYS_fremovexattr = 16;
27	pub const SYS_getcwd = 17;
28	pub const SYS_lookup_dcookie = 18;
29	pub const SYS_eventfd2 = 19;
30	pub const SYS_epoll_create1 = 20;
31	pub const SYS_epoll_ctl = 21;
32	pub const SYS_epoll_pwait = 22;
33	pub const SYS_dup = 23;
34	pub const SYS_dup3 = 24;
35	pub const SYS_fcntl = 25;
36	pub const SYS_inotify_init1 = 26;
37	pub const SYS_inotify_add_watch = 27;
38	pub const SYS_inotify_rm_watch = 28;
39	pub const SYS_ioctl = 29;
40	pub const SYS_ioprio_set = 30;
41	pub const SYS_ioprio_get = 31;
42	pub const SYS_flock = 32;
43	pub const SYS_mknodat = 33;
44	pub const SYS_mkdirat = 34;
45	pub const SYS_unlinkat = 35;
46	pub const SYS_symlinkat = 36;
47	pub const SYS_linkat = 37;
48	pub const SYS_renameat = 38;
49	pub const SYS_umount2 = 39;
50	pub const SYS_mount = 40;
51	pub const SYS_pivot_root = 41;
52	pub const SYS_nfsservctl = 42;
53	pub const SYS_statfs = 43;
54	pub const SYS_fstatfs = 44;
55	pub const SYS_truncate = 45;
56	pub const SYS_ftruncate = 46;
57	pub const SYS_fallocate = 47;
58	pub const SYS_faccessat = 48;
59	pub const SYS_chdir = 49;
60	pub const SYS_fchdir = 50;
61	pub const SYS_chroot = 51;
62	pub const SYS_fchmod = 52;
63	pub const SYS_fchmodat = 53;
64	pub const SYS_fchownat = 54;
65	pub const SYS_fchown = 55;
66	pub const SYS_openat = 56;
67	pub const SYS_close = 57;
68	pub const SYS_vhangup = 58;
69	pub const SYS_pipe2 = 59;
70	pub const SYS_quotactl = 60;
71	pub const SYS_getdents64 = 61;
72	pub const SYS_lseek = 62;
73	pub const SYS_read = 63;
74	pub const SYS_write = 64;
75	pub const SYS_readv = 65;
76	pub const SYS_writev = 66;
77	pub const SYS_pread64 = 67;
78	pub const SYS_pwrite64 = 68;
79	pub const SYS_preadv = 69;
80	pub const SYS_pwritev = 70;
81	pub const SYS_pselect6 = 72;
82	pub const SYS_ppoll = 73;
83	pub const SYS_signalfd4 = 74;
84	pub const SYS_vmsplice = 75;
85	pub const SYS_splice = 76;
86	pub const SYS_tee = 77;
87	pub const SYS_readlinkat = 78;
88	pub const SYS_fstatat = 79;
89	pub const SYS_fstat = 80;
90	pub const SYS_sync = 81;
91	pub const SYS_fsync = 82;
92	pub const SYS_fdatasync = 83;
93	pub const SYS_sync_file_range2 = 84;
94	pub const SYS_sync_file_range = 84;
95	pub const SYS_timerfd_create = 85;
96	pub const SYS_timerfd_settime = 86;
97	pub const SYS_timerfd_gettime = 87;
98	pub const SYS_utimensat = 88;
99	pub const SYS_acct = 89;
100	pub const SYS_capget = 90;
101	pub const SYS_capset = 91;
102	pub const SYS_personality = 92;
103	pub const SYS_exit = 93;
104	pub const SYS_exit_group = 94;
105	pub const SYS_waitid = 95;
106	pub const SYS_set_tid_address = 96;
107	pub const SYS_unshare = 97;
108	pub const SYS_futex = 98;
109	pub const SYS_set_robust_list = 99;
110	pub const SYS_get_robust_list = 100;
111	pub const SYS_nanosleep = 101;
112	pub const SYS_getitimer = 102;
113	pub const SYS_setitimer = 103;
114	pub const SYS_kexec_load = 104;
115	pub const SYS_init_module = 105;
116	pub const SYS_delete_module = 106;
117	pub const SYS_timer_create = 107;
118	pub const SYS_timer_gettime = 108;
119	pub const SYS_timer_getoverrun = 109;
120	pub const SYS_timer_settime = 110;
121	pub const SYS_timer_delete = 111;
122	pub const SYS_clock_settime = 112;
123	pub const SYS_clock_gettime = 113;
124	pub const SYS_clock_getres = 114;
125	pub const SYS_clock_nanosleep = 115;
126	pub const SYS_syslog = 116;
127	pub const SYS_ptrace = 117;
128	pub const SYS_sched_setparam = 118;
129	pub const SYS_sched_setscheduler = 119;
130	pub const SYS_sched_getscheduler = 120;
131	pub const SYS_sched_getparam = 121;
132	pub const SYS_sched_setaffinity = 122;
133	pub const SYS_sched_getaffinity = 123;
134	pub const SYS_sched_yield = 124;
135	pub const SYS_sched_get_priority_max = 125;
136	pub const SYS_sched_get_priority_min = 126;
137	pub const SYS_sched_rr_get_interval = 127;
138	pub const SYS_restart_syscall = 128;
139	pub const SYS_kill = 129;
140	pub const SYS_tkill = 130;
141	pub const SYS_tgkill = 131;
142	pub const SYS_sigaltstack = 132;
143	pub const SYS_rt_sigsuspend = 133;
144	pub const SYS_rt_sigaction = 134;
145	pub const SYS_rt_sigprocmask = 135;
146	pub const SYS_rt_sigpending = 136;
147	pub const SYS_rt_sigtimedwait = 137;
148	pub const SYS_rt_sigqueueinfo = 138;
149	pub const SYS_rt_sigreturn = 139;
150	pub const SYS_setpriority = 140;
151	pub const SYS_getpriority = 141;
152	pub const SYS_reboot = 142;
153	pub const SYS_setregid = 143;
154	pub const SYS_setgid = 144;
155	pub const SYS_setreuid = 145;
156	pub const SYS_setuid = 146;
157	pub const SYS_setresuid = 147;
158	pub const SYS_getresuid = 148;
159	pub const SYS_setresgid = 149;
160	pub const SYS_getresgid = 150;
161	pub const SYS_setfsuid = 151;
162	pub const SYS_setfsgid = 152;
163	pub const SYS_times = 153;
164	pub const SYS_setpgid = 154;
165	pub const SYS_getpgid = 155;
166	pub const SYS_getsid = 156;
167	pub const SYS_setsid = 157;
168	pub const SYS_getgroups = 158;
169	pub const SYS_setgroups = 159;
170	pub const SYS_uname = 160;
171	pub const SYS_sethostname = 161;
172	pub const SYS_setdomainname = 162;
173	pub const SYS_getrlimit = 163;
174	pub const SYS_setrlimit = 164;
175	pub const SYS_getrusage = 165;
176	pub const SYS_umask = 166;
177	pub const SYS_prctl = 167;
178	pub const SYS_getcpu = 168;
179	pub const SYS_gettimeofday = 169;
180	pub const SYS_settimeofday = 170;
181	pub const SYS_adjtimex = 171;
182	pub const SYS_getpid = 172;
183	pub const SYS_getppid = 173;
184	pub const SYS_getuid = 174;
185	pub const SYS_geteuid = 175;
186	pub const SYS_getgid = 176;
187	pub const SYS_getegid = 177;
188	pub const SYS_gettid = 178;
189	pub const SYS_sysinfo = 179;
190	pub const SYS_mq_open = 180;
191	pub const SYS_mq_unlink = 181;
192	pub const SYS_mq_timedsend = 182;
193	pub const SYS_mq_timedreceive = 183;
194	pub const SYS_mq_notify = 184;
195	pub const SYS_mq_getsetattr = 185;
196	pub const SYS_msgget = 186;
197	pub const SYS_msgctl = 187;
198	pub const SYS_msgrcv = 188;
199	pub const SYS_msgsnd = 189;
200	pub const SYS_semget = 190;
201	pub const SYS_semctl = 191;
202	pub const SYS_semtimedop = 192;
203	pub const SYS_semop = 193;
204	pub const SYS_shmget = 194;
205	pub const SYS_shmctl = 195;
206	pub const SYS_shmat = 196;
207	pub const SYS_shmdt = 197;
208	pub const SYS_socket = 198;
209	pub const SYS_socketpair = 199;
210	pub const SYS_bind = 200;
211	pub const SYS_listen = 201;
212	pub const SYS_accept = 202;
213	pub const SYS_connect = 203;
214	pub const SYS_getsockname = 204;
215	pub const SYS_getpeername = 205;
216	pub const SYS_sendto = 206;
217	pub const SYS_recvfrom = 207;
218	pub const SYS_setsockopt = 208;
219	pub const SYS_getsockopt = 209;
220	pub const SYS_shutdown = 210;
221	pub const SYS_sendmsg = 211;
222	pub const SYS_recvmsg = 212;
223	pub const SYS_readahead = 213;
224	pub const SYS_brk = 214;
225	pub const SYS_munmap = 215;
226	pub const SYS_mremap = 216;
227	pub const SYS_add_key = 217;
228	pub const SYS_request_key = 218;
229	pub const SYS_keyctl = 219;
230	pub const SYS_clone = 220;
231	pub const SYS_execve = 221;
232	pub const SYS_mmap = 222;
233	pub const SYS_fadvise64 = 223;
234	pub const SYS_swapon = 224;
235	pub const SYS_swapoff = 225;
236	pub const SYS_mprotect = 226;
237	pub const SYS_msync = 227;
238	pub const SYS_mlock = 228;
239	pub const SYS_munlock = 229;
240	pub const SYS_mlockall = 230;
241	pub const SYS_munlockall = 231;
242	pub const SYS_mincore = 232;
243	pub const SYS_madvise = 233;
244	pub const SYS_remap_file_pages = 234;
245	pub const SYS_mbind = 235;
246	pub const SYS_get_mempolicy = 236;
247	pub const SYS_set_mempolicy = 237;
248	pub const SYS_migrate_pages = 238;
249	pub const SYS_move_pages = 239;
250	pub const SYS_rt_tgsigqueueinfo = 240;
251	pub const SYS_perf_event_open = 241;
252	pub const SYS_accept4 = 242;
253	pub const SYS_recvmmsg = 243;
254	pub const SYS_arch_specific_syscall = 244;
255	pub const SYS_wait4 = 260;
256	pub const SYS_prlimit64 = 261;
257	pub const SYS_fanotify_init = 262;
258	pub const SYS_fanotify_mark = 263;
259	pub const SYS_clock_adjtime = 266;
260	pub const SYS_syncfs = 267;
261	pub const SYS_setns = 268;
262	pub const SYS_sendmmsg = 269;
263	pub const SYS_process_vm_readv = 270;
264	pub const SYS_process_vm_writev = 271;
265	pub const SYS_kcmp = 272;
266	pub const SYS_finit_module = 273;
267	pub const SYS_sched_setattr = 274;
268	pub const SYS_sched_getattr = 275;
269	pub const SYS_renameat2 = 276;
270	pub const SYS_seccomp = 277;
271	pub const SYS_getrandom = 278;
272	pub const SYS_memfd_create = 279;
273	pub const SYS_bpf = 280;
274	pub const SYS_execveat = 281;
275	pub const SYS_userfaultfd = 282;
276	pub const SYS_membarrier = 283;
277	pub const SYS_mlock2 = 284;
278	pub const SYS_copy_file_range = 285;
279	pub const SYS_preadv2 = 286;
280	pub const SYS_pwritev2 = 287;
281	pub const SYS_pkey_mprotect = 288;
282	pub const SYS_pkey_alloc = 289;
283	pub const SYS_pkey_free = 290;
284	pub const SYS_statx = 291;
285	pub const SYS_io_pgetevents = 292;
286	pub const SYS_rseq = 293;
287	pub const SYS_kexec_file_load = 294;
288	pub const SYS_pidfd_send_signal = 424;
289	pub const SYS_io_uring_setup = 425;
290	pub const SYS_io_uring_enter = 426;
291	pub const SYS_io_uring_register = 427;
292
293	pub const O_CREAT = 0o100;
294	pub const O_EXCL = 0o200;
295	pub const O_NOCTTY = 0o400;
296	pub const O_TRUNC = 0o1000;
297	pub const O_APPEND = 0o2000;
298	pub const O_NONBLOCK = 0o4000;
299	pub const O_DSYNC = 0o10000;
300	pub const O_SYNC = 0o4010000;
301	pub const O_RSYNC = 0o4010000;
302	pub const O_DIRECTORY = 0o200000;
303	pub const O_NOFOLLOW = 0o400000;
304	pub const O_CLOEXEC = 0o2000000;
305
306	pub const O_ASYNC = 0o20000;
307	pub const O_DIRECT = 0o40000;
308	pub const O_LARGEFILE = 0;
309	pub const O_NOATIME = 0o1000000;
310	pub const O_PATH = 0o10000000;
311	pub const O_TMPFILE = 0o20200000;
312	pub const O_NDELAY = O_NONBLOCK;
313
314	pub const F_DUPFD = 0;
315	pub const F_GETFD = 1;
316	pub const F_SETFD = 2;
317	pub const F_GETFL = 3;
318	pub const F_SETFL = 4;
319
320	pub const F_SETOWN = 8;
321	pub const F_GETOWN = 9;
322	pub const F_SETSIG = 10;
323	pub const F_GETSIG = 11;
324
325	pub const F_GETLK = 5;
326	pub const F_SETLK = 6;
327	pub const F_SETLKW = 7;
328
329	pub const F_SETOWN_EX = 15;
330	pub const F_GETOWN_EX = 16;
331
332	pub const F_GETOWNER_UIDS = 17;
333
334	pub const AT_FDCWD = -100;
335	pub const AT_SYMLINK_NOFOLLOW = 0x100;
336	pub const AT_REMOVEDIR = 0x200;
337	pub const AT_SYMLINK_FOLLOW = 0x400;
338	pub const AT_NO_AUTOMOUNT = 0x800;
339	pub const AT_EMPTY_PATH = 0x1000;
340
341	pub const VDSO_USEFUL = true;
342	pub const VDSO_CGT_SYM = "__kernel_clock_gettime";
343	pub const VDSO_CGT_VER = "LINUX_2.6.39";
344
345	pub const msghdr = extern struct {
346	msg_name: ?*sockaddr,
347	msg_namelen: socklen_t,
348	msg_iov: [*]iovec,
349	msg_iovlen: i32,
350	__pad1: i32,
351	msg_control: ?*c_void,
352	msg_controllen: socklen_t,
353	__pad2: socklen_t,
354	msg_flags: i32,
355	};
356
357	pub const msghdr_const = extern struct {
358	msg_name: ?*const sockaddr,
359	msg_namelen: socklen_t,
360	msg_iov: [*]iovec_const,
361	msg_iovlen: i32,
362	__pad1: i32,
363	msg_control: ?*c_void,
364	msg_controllen: socklen_t,
365	__pad2: socklen_t,
366	msg_flags: i32,
367	};
368
369	/// Renamed to Stat to not conflict with the stat function.
370	pub const Stat = extern struct {
371	dev: u64,
372	ino: u64,
373	nlink: usize,
374
375	mode: u32,
376	uid: u32,
377	gid: u32,
378	__pad0: u32,
379	rdev: u64,
380	size: i64,
381	blksize: isize,
382	blocks: i64,
383
384	atim: timespec,
385	mtim: timespec,
386	ctim: timespec,
387	__unused: [3]isize,
388	};
389
390	pub const timespec = extern struct {
391	tv_sec: isize,
392	tv_nsec: isize,
393	};
394
395	pub const timeval = extern struct {
396	tv_sec: isize,
397	tv_usec: isize,
398	};
399
400	pub const timezone = extern struct {
401	tz_minuteswest: i32,
402	tz_dsttime: i32,
403	};
404
405	pub const Elf_Symndx = u32;

std/os/bits/linux/errno.zig created+428

...	@@ -0,0 +1,428 @@
1	/// Operation not permitted
2	pub const EPERM = 1;
3
4	/// No such file or directory
5	pub const ENOENT = 2;
6
7	/// No such process
8	pub const ESRCH = 3;
9
10	/// Interrupted system call
11	pub const EINTR = 4;
12
13	/// I/O error
14	pub const EIO = 5;
15
16	/// No such device or address
17	pub const ENXIO = 6;
18
19	/// Arg list too long
20	pub const E2BIG = 7;
21
22	/// Exec format error
23	pub const ENOEXEC = 8;
24
25	/// Bad file number
26	pub const EBADF = 9;
27
28	/// No child processes
29	pub const ECHILD = 10;
30
31	/// Try again
32	pub const EAGAIN = 11;
33
34	/// Out of memory
35	pub const ENOMEM = 12;
36
37	/// Permission denied
38	pub const EACCES = 13;
39
40	/// Bad address
41	pub const EFAULT = 14;
42
43	/// Block device required
44	pub const ENOTBLK = 15;
45
46	/// Device or resource busy
47	pub const EBUSY = 16;
48
49	/// File exists
50	pub const EEXIST = 17;
51
52	/// Cross-device link
53	pub const EXDEV = 18;
54
55	/// No such device
56	pub const ENODEV = 19;
57
58	/// Not a directory
59	pub const ENOTDIR = 20;
60
61	/// Is a directory
62	pub const EISDIR = 21;
63
64	/// Invalid argument
65	pub const EINVAL = 22;
66
67	/// File table overflow
68	pub const ENFILE = 23;
69
70	/// Too many open files
71	pub const EMFILE = 24;
72
73	/// Not a typewriter
74	pub const ENOTTY = 25;
75
76	/// Text file busy
77	pub const ETXTBSY = 26;
78
79	/// File too large
80	pub const EFBIG = 27;
81
82	/// No space left on device
83	pub const ENOSPC = 28;
84
85	/// Illegal seek
86	pub const ESPIPE = 29;
87
88	/// Read-only file system
89	pub const EROFS = 30;
90
91	/// Too many links
92	pub const EMLINK = 31;
93
94	/// Broken pipe
95	pub const EPIPE = 32;
96
97	/// Math argument out of domain of func
98	pub const EDOM = 33;
99
100	/// Math result not representable
101	pub const ERANGE = 34;
102
103	/// Resource deadlock would occur
104	pub const EDEADLK = 35;
105
106	/// File name too long
107	pub const ENAMETOOLONG = 36;
108
109	/// No record locks available
110	pub const ENOLCK = 37;
111
112	/// Function not implemented
113	pub const ENOSYS = 38;
114
115	/// Directory not empty
116	pub const ENOTEMPTY = 39;
117
118	/// Too many symbolic links encountered
119	pub const ELOOP = 40;
120
121	/// Operation would block
122	pub const EWOULDBLOCK = EAGAIN;
123
124	/// No message of desired type
125	pub const ENOMSG = 42;
126
127	/// Identifier removed
128	pub const EIDRM = 43;
129
130	/// Channel number out of range
131	pub const ECHRNG = 44;
132
133	/// Level 2 not synchronized
134	pub const EL2NSYNC = 45;
135
136	/// Level 3 halted
137	pub const EL3HLT = 46;
138
139	/// Level 3 reset
140	pub const EL3RST = 47;
141
142	/// Link number out of range
143	pub const ELNRNG = 48;
144
145	/// Protocol driver not attached
146	pub const EUNATCH = 49;
147
148	/// No CSI structure available
149	pub const ENOCSI = 50;
150
151	/// Level 2 halted
152	pub const EL2HLT = 51;
153
154	/// Invalid exchange
155	pub const EBADE = 52;
156
157	/// Invalid request descriptor
158	pub const EBADR = 53;
159
160	/// Exchange full
161	pub const EXFULL = 54;
162
163	/// No anode
164	pub const ENOANO = 55;
165
166	/// Invalid request code
167	pub const EBADRQC = 56;
168
169	/// Invalid slot
170	pub const EBADSLT = 57;
171
172	/// Bad font file format
173	pub const EBFONT = 59;
174
175	/// Device not a stream
176	pub const ENOSTR = 60;
177
178	/// No data available
179	pub const ENODATA = 61;
180
181	/// Timer expired
182	pub const ETIME = 62;
183
184	/// Out of streams resources
185	pub const ENOSR = 63;
186
187	/// Machine is not on the network
188	pub const ENONET = 64;
189
190	/// Package not installed
191	pub const ENOPKG = 65;
192
193	/// Object is remote
194	pub const EREMOTE = 66;
195
196	/// Link has been severed
197	pub const ENOLINK = 67;
198
199	/// Advertise error
200	pub const EADV = 68;
201
202	/// Srmount error
203	pub const ESRMNT = 69;
204
205	/// Communication error on send
206	pub const ECOMM = 70;
207
208	/// Protocol error
209	pub const EPROTO = 71;
210
211	/// Multihop attempted
212	pub const EMULTIHOP = 72;
213
214	/// RFS specific error
215	pub const EDOTDOT = 73;
216
217	/// Not a data message
218	pub const EBADMSG = 74;
219
220	/// Value too large for defined data type
221	pub const EOVERFLOW = 75;
222
223	/// Name not unique on network
224	pub const ENOTUNIQ = 76;
225
226	/// File descriptor in bad state
227	pub const EBADFD = 77;
228
229	/// Remote address changed
230	pub const EREMCHG = 78;
231
232	/// Can not access a needed shared library
233	pub const ELIBACC = 79;
234
235	/// Accessing a corrupted shared library
236	pub const ELIBBAD = 80;
237
238	/// .lib section in a.out corrupted
239	pub const ELIBSCN = 81;
240
241	/// Attempting to link in too many shared libraries
242	pub const ELIBMAX = 82;
243
244	/// Cannot exec a shared library directly
245	pub const ELIBEXEC = 83;
246
247	/// Illegal byte sequence
248	pub const EILSEQ = 84;
249
250	/// Interrupted system call should be restarted
251	pub const ERESTART = 85;
252
253	/// Streams pipe error
254	pub const ESTRPIPE = 86;
255
256	/// Too many users
257	pub const EUSERS = 87;
258
259	/// Socket operation on non-socket
260	pub const ENOTSOCK = 88;
261
262	/// Destination address required
263	pub const EDESTADDRREQ = 89;
264
265	/// Message too long
266	pub const EMSGSIZE = 90;
267
268	/// Protocol wrong type for socket
269	pub const EPROTOTYPE = 91;
270
271	/// Protocol not available
272	pub const ENOPROTOOPT = 92;
273
274	/// Protocol not supported
275	pub const EPROTONOSUPPORT = 93;
276
277	/// Socket type not supported
278	pub const ESOCKTNOSUPPORT = 94;
279
280	/// Operation not supported on transport endpoint
281	pub const EOPNOTSUPP = 95;
282	pub const ENOTSUP = EOPNOTSUPP;
283
284	/// Protocol family not supported
285	pub const EPFNOSUPPORT = 96;
286
287	/// Address family not supported by protocol
288	pub const EAFNOSUPPORT = 97;
289
290	/// Address already in use
291	pub const EADDRINUSE = 98;
292
293	/// Cannot assign requested address
294	pub const EADDRNOTAVAIL = 99;
295
296	/// Network is down
297	pub const ENETDOWN = 100;
298
299	/// Network is unreachable
300	pub const ENETUNREACH = 101;
301
302	/// Network dropped connection because of reset
303	pub const ENETRESET = 102;
304
305	/// Software caused connection abort
306	pub const ECONNABORTED = 103;
307
308	/// Connection reset by peer
309	pub const ECONNRESET = 104;
310
311	/// No buffer space available
312	pub const ENOBUFS = 105;
313
314	/// Transport endpoint is already connected
315	pub const EISCONN = 106;
316
317	/// Transport endpoint is not connected
318	pub const ENOTCONN = 107;
319
320	/// Cannot send after transport endpoint shutdown
321	pub const ESHUTDOWN = 108;
322
323	/// Too many references: cannot splice
324	pub const ETOOMANYREFS = 109;
325
326	/// Connection timed out
327	pub const ETIMEDOUT = 110;
328
329	/// Connection refused
330	pub const ECONNREFUSED = 111;
331
332	/// Host is down
333	pub const EHOSTDOWN = 112;
334
335	/// No route to host
336	pub const EHOSTUNREACH = 113;
337
338	/// Operation already in progress
339	pub const EALREADY = 114;
340
341	/// Operation now in progress
342	pub const EINPROGRESS = 115;
343
344	/// Stale NFS file handle
345	pub const ESTALE = 116;
346
347	/// Structure needs cleaning
348	pub const EUCLEAN = 117;
349
350	/// Not a XENIX named type file
351	pub const ENOTNAM = 118;
352
353	/// No XENIX semaphores available
354	pub const ENAVAIL = 119;
355
356	/// Is a named type file
357	pub const EISNAM = 120;
358
359	/// Remote I/O error
360	pub const EREMOTEIO = 121;
361
362	/// Quota exceeded
363	pub const EDQUOT = 122;
364
365	/// No medium found
366	pub const ENOMEDIUM = 123;
367
368	/// Wrong medium type
369	pub const EMEDIUMTYPE = 124;
370
371	// nameserver query return codes
372
373	/// DNS server returned answer with no data
374	pub const ENSROK = 0;
375
376	/// DNS server returned answer with no data
377	pub const ENSRNODATA = 160;
378
379	/// DNS server claims query was misformatted
380	pub const ENSRFORMERR = 161;
381
382	/// DNS server returned general failure
383	pub const ENSRSERVFAIL = 162;
384
385	/// Domain name not found
386	pub const ENSRNOTFOUND = 163;
387
388	/// DNS server does not implement requested operation
389	pub const ENSRNOTIMP = 164;
390
391	/// DNS server refused query
392	pub const ENSRREFUSED = 165;
393
394	/// Misformatted DNS query
395	pub const ENSRBADQUERY = 166;
396
397	/// Misformatted domain name
398	pub const ENSRBADNAME = 167;
399
400	/// Unsupported address family
401	pub const ENSRBADFAMILY = 168;
402
403	/// Misformatted DNS reply
404	pub const ENSRBADRESP = 169;
405
406	/// Could not contact DNS servers
407	pub const ENSRCONNREFUSED = 170;
408
409	/// Timeout while contacting DNS servers
410	pub const ENSRTIMEOUT = 171;
411
412	/// End of file
413	pub const ENSROF = 172;
414
415	/// Error reading file
416	pub const ENSRFILE = 173;
417
418	/// Out of memory
419	pub const ENSRNOMEM = 174;
420
421	/// Application terminated lookup
422	pub const ENSRDESTRUCTION = 175;
423
424	/// Domain name is too long
425	pub const ENSRQUERYDOMAINTOOLONG = 176;
426
427	/// Domain name is too long
428	pub const ENSRCNAMELOOP = 177;

std/os/bits/linux/x86_64.zig created+470

...	@@ -0,0 +1,470 @@
1	// x86-64-specific declarations that are intended to be imported into the POSIX namespace.
2	const std = @import("../../../std.zig");
3
4	const linux = std.os.linux;
5	const sockaddr = linux.sockaddr;
6	const socklen_t = linux.socklen_t;
7	const iovec = linux.iovec;
8	const iovec_const = linux.iovec_const;
9
10	pub const SYS_read = 0;
11	pub const SYS_write = 1;
12	pub const SYS_open = 2;
13	pub const SYS_close = 3;
14	pub const SYS_stat = 4;
15	pub const SYS_fstat = 5;
16	pub const SYS_lstat = 6;
17	pub const SYS_poll = 7;
18	pub const SYS_lseek = 8;
19	pub const SYS_mmap = 9;
20	pub const SYS_mprotect = 10;
21	pub const SYS_munmap = 11;
22	pub const SYS_brk = 12;
23	pub const SYS_rt_sigaction = 13;
24	pub const SYS_rt_sigprocmask = 14;
25	pub const SYS_rt_sigreturn = 15;
26	pub const SYS_ioctl = 16;
27	pub const SYS_pread = 17;
28	pub const SYS_pwrite = 18;
29	pub const SYS_readv = 19;
30	pub const SYS_writev = 20;
31	pub const SYS_access = 21;
32	pub const SYS_pipe = 22;
33	pub const SYS_select = 23;
34	pub const SYS_sched_yield = 24;
35	pub const SYS_mremap = 25;
36	pub const SYS_msync = 26;
37	pub const SYS_mincore = 27;
38	pub const SYS_madvise = 28;
39	pub const SYS_shmget = 29;
40	pub const SYS_shmat = 30;
41	pub const SYS_shmctl = 31;
42	pub const SYS_dup = 32;
43	pub const SYS_dup2 = 33;
44	pub const SYS_pause = 34;
45	pub const SYS_nanosleep = 35;
46	pub const SYS_getitimer = 36;
47	pub const SYS_alarm = 37;
48	pub const SYS_setitimer = 38;
49	pub const SYS_getpid = 39;
50	pub const SYS_sendfile = 40;
51	pub const SYS_socket = 41;
52	pub const SYS_connect = 42;
53	pub const SYS_accept = 43;
54	pub const SYS_sendto = 44;
55	pub const SYS_recvfrom = 45;
56	pub const SYS_sendmsg = 46;
57	pub const SYS_recvmsg = 47;
58	pub const SYS_shutdown = 48;
59	pub const SYS_bind = 49;
60	pub const SYS_listen = 50;
61	pub const SYS_getsockname = 51;
62	pub const SYS_getpeername = 52;
63	pub const SYS_socketpair = 53;
64	pub const SYS_setsockopt = 54;
65	pub const SYS_getsockopt = 55;
66	pub const SYS_clone = 56;
67	pub const SYS_fork = 57;
68	pub const SYS_vfork = 58;
69	pub const SYS_execve = 59;
70	pub const SYS_exit = 60;
71	pub const SYS_wait4 = 61;
72	pub const SYS_kill = 62;
73	pub const SYS_uname = 63;
74	pub const SYS_semget = 64;
75	pub const SYS_semop = 65;
76	pub const SYS_semctl = 66;
77	pub const SYS_shmdt = 67;
78	pub const SYS_msgget = 68;
79	pub const SYS_msgsnd = 69;
80	pub const SYS_msgrcv = 70;
81	pub const SYS_msgctl = 71;
82	pub const SYS_fcntl = 72;
83	pub const SYS_flock = 73;
84	pub const SYS_fsync = 74;
85	pub const SYS_fdatasync = 75;
86	pub const SYS_truncate = 76;
87	pub const SYS_ftruncate = 77;
88	pub const SYS_getdents = 78;
89	pub const SYS_getcwd = 79;
90	pub const SYS_chdir = 80;
91	pub const SYS_fchdir = 81;
92	pub const SYS_rename = 82;
93	pub const SYS_mkdir = 83;
94	pub const SYS_rmdir = 84;
95	pub const SYS_creat = 85;
96	pub const SYS_link = 86;
97	pub const SYS_unlink = 87;
98	pub const SYS_symlink = 88;
99	pub const SYS_readlink = 89;
100	pub const SYS_chmod = 90;
101	pub const SYS_fchmod = 91;
102	pub const SYS_chown = 92;
103	pub const SYS_fchown = 93;
104	pub const SYS_lchown = 94;
105	pub const SYS_umask = 95;
106	pub const SYS_gettimeofday = 96;
107	pub const SYS_getrlimit = 97;
108	pub const SYS_getrusage = 98;
109	pub const SYS_sysinfo = 99;
110	pub const SYS_times = 100;
111	pub const SYS_ptrace = 101;
112	pub const SYS_getuid = 102;
113	pub const SYS_syslog = 103;
114	pub const SYS_getgid = 104;
115	pub const SYS_setuid = 105;
116	pub const SYS_setgid = 106;
117	pub const SYS_geteuid = 107;
118	pub const SYS_getegid = 108;
119	pub const SYS_setpgid = 109;
120	pub const SYS_getppid = 110;
121	pub const SYS_getpgrp = 111;
122	pub const SYS_setsid = 112;
123	pub const SYS_setreuid = 113;
124	pub const SYS_setregid = 114;
125	pub const SYS_getgroups = 115;
126	pub const SYS_setgroups = 116;
127	pub const SYS_setresuid = 117;
128	pub const SYS_getresuid = 118;
129	pub const SYS_setresgid = 119;
130	pub const SYS_getresgid = 120;
131	pub const SYS_getpgid = 121;
132	pub const SYS_setfsuid = 122;
133	pub const SYS_setfsgid = 123;
134	pub const SYS_getsid = 124;
135	pub const SYS_capget = 125;
136	pub const SYS_capset = 126;
137	pub const SYS_rt_sigpending = 127;
138	pub const SYS_rt_sigtimedwait = 128;
139	pub const SYS_rt_sigqueueinfo = 129;
140	pub const SYS_rt_sigsuspend = 130;
141	pub const SYS_sigaltstack = 131;
142	pub const SYS_utime = 132;
143	pub const SYS_mknod = 133;
144	pub const SYS_uselib = 134;
145	pub const SYS_personality = 135;
146	pub const SYS_ustat = 136;
147	pub const SYS_statfs = 137;
148	pub const SYS_fstatfs = 138;
149	pub const SYS_sysfs = 139;
150	pub const SYS_getpriority = 140;
151	pub const SYS_setpriority = 141;
152	pub const SYS_sched_setparam = 142;
153	pub const SYS_sched_getparam = 143;
154	pub const SYS_sched_setscheduler = 144;
155	pub const SYS_sched_getscheduler = 145;
156	pub const SYS_sched_get_priority_max = 146;
157	pub const SYS_sched_get_priority_min = 147;
158	pub const SYS_sched_rr_get_interval = 148;
159	pub const SYS_mlock = 149;
160	pub const SYS_munlock = 150;
161	pub const SYS_mlockall = 151;
162	pub const SYS_munlockall = 152;
163	pub const SYS_vhangup = 153;
164	pub const SYS_modify_ldt = 154;
165	pub const SYS_pivot_root = 155;
166	pub const SYS__sysctl = 156;
167	pub const SYS_prctl = 157;
168	pub const SYS_arch_prctl = 158;
169	pub const SYS_adjtimex = 159;
170	pub const SYS_setrlimit = 160;
171	pub const SYS_chroot = 161;
172	pub const SYS_sync = 162;
173	pub const SYS_acct = 163;
174	pub const SYS_settimeofday = 164;
175	pub const SYS_mount = 165;
176	pub const SYS_umount2 = 166;
177	pub const SYS_swapon = 167;
178	pub const SYS_swapoff = 168;
179	pub const SYS_reboot = 169;
180	pub const SYS_sethostname = 170;
181	pub const SYS_setdomainname = 171;
182	pub const SYS_iopl = 172;
183	pub const SYS_ioperm = 173;
184	pub const SYS_create_module = 174;
185	pub const SYS_init_module = 175;
186	pub const SYS_delete_module = 176;
187	pub const SYS_get_kernel_syms = 177;
188	pub const SYS_query_module = 178;
189	pub const SYS_quotactl = 179;
190	pub const SYS_nfsservctl = 180;
191	pub const SYS_getpmsg = 181;
192	pub const SYS_putpmsg = 182;
193	pub const SYS_afs_syscall = 183;
194	pub const SYS_tuxcall = 184;
195	pub const SYS_security = 185;
196	pub const SYS_gettid = 186;
197	pub const SYS_readahead = 187;
198	pub const SYS_setxattr = 188;
199	pub const SYS_lsetxattr = 189;
200	pub const SYS_fsetxattr = 190;
201	pub const SYS_getxattr = 191;
202	pub const SYS_lgetxattr = 192;
203	pub const SYS_fgetxattr = 193;
204	pub const SYS_listxattr = 194;
205	pub const SYS_llistxattr = 195;
206	pub const SYS_flistxattr = 196;
207	pub const SYS_removexattr = 197;
208	pub const SYS_lremovexattr = 198;
209	pub const SYS_fremovexattr = 199;
210	pub const SYS_tkill = 200;
211	pub const SYS_time = 201;
212	pub const SYS_futex = 202;
213	pub const SYS_sched_setaffinity = 203;
214	pub const SYS_sched_getaffinity = 204;
215	pub const SYS_set_thread_area = 205;
216	pub const SYS_io_setup = 206;
217	pub const SYS_io_destroy = 207;
218	pub const SYS_io_getevents = 208;
219	pub const SYS_io_submit = 209;
220	pub const SYS_io_cancel = 210;
221	pub const SYS_get_thread_area = 211;
222	pub const SYS_lookup_dcookie = 212;
223	pub const SYS_epoll_create = 213;
224	pub const SYS_epoll_ctl_old = 214;
225	pub const SYS_epoll_wait_old = 215;
226	pub const SYS_remap_file_pages = 216;
227	pub const SYS_getdents64 = 217;
228	pub const SYS_set_tid_address = 218;
229	pub const SYS_restart_syscall = 219;
230	pub const SYS_semtimedop = 220;
231	pub const SYS_fadvise64 = 221;
232	pub const SYS_timer_create = 222;
233	pub const SYS_timer_settime = 223;
234	pub const SYS_timer_gettime = 224;
235	pub const SYS_timer_getoverrun = 225;
236	pub const SYS_timer_delete = 226;
237	pub const SYS_clock_settime = 227;
238	pub const SYS_clock_gettime = 228;
239	pub const SYS_clock_getres = 229;
240	pub const SYS_clock_nanosleep = 230;
241	pub const SYS_exit_group = 231;
242	pub const SYS_epoll_wait = 232;
243	pub const SYS_epoll_ctl = 233;
244	pub const SYS_tgkill = 234;
245	pub const SYS_utimes = 235;
246	pub const SYS_vserver = 236;
247	pub const SYS_mbind = 237;
248	pub const SYS_set_mempolicy = 238;
249	pub const SYS_get_mempolicy = 239;
250	pub const SYS_mq_open = 240;
251	pub const SYS_mq_unlink = 241;
252	pub const SYS_mq_timedsend = 242;
253	pub const SYS_mq_timedreceive = 243;
254	pub const SYS_mq_notify = 244;
255	pub const SYS_mq_getsetattr = 245;
256	pub const SYS_kexec_load = 246;
257	pub const SYS_waitid = 247;
258	pub const SYS_add_key = 248;
259	pub const SYS_request_key = 249;
260	pub const SYS_keyctl = 250;
261	pub const SYS_ioprio_set = 251;
262	pub const SYS_ioprio_get = 252;
263	pub const SYS_inotify_init = 253;
264	pub const SYS_inotify_add_watch = 254;
265	pub const SYS_inotify_rm_watch = 255;
266	pub const SYS_migrate_pages = 256;
267	pub const SYS_openat = 257;
268	pub const SYS_mkdirat = 258;
269	pub const SYS_mknodat = 259;
270	pub const SYS_fchownat = 260;
271	pub const SYS_futimesat = 261;
272	pub const SYS_newfstatat = 262;
273	pub const SYS_fstatat = 262;
274	pub const SYS_unlinkat = 263;
275	pub const SYS_renameat = 264;
276	pub const SYS_linkat = 265;
277	pub const SYS_symlinkat = 266;
278	pub const SYS_readlinkat = 267;
279	pub const SYS_fchmodat = 268;
280	pub const SYS_faccessat = 269;
281	pub const SYS_pselect6 = 270;
282	pub const SYS_ppoll = 271;
283	pub const SYS_unshare = 272;
284	pub const SYS_set_robust_list = 273;
285	pub const SYS_get_robust_list = 274;
286	pub const SYS_splice = 275;
287	pub const SYS_tee = 276;
288	pub const SYS_sync_file_range = 277;
289	pub const SYS_vmsplice = 278;
290	pub const SYS_move_pages = 279;
291	pub const SYS_utimensat = 280;
292	pub const SYS_epoll_pwait = 281;
293	pub const SYS_signalfd = 282;
294	pub const SYS_timerfd_create = 283;
295	pub const SYS_eventfd = 284;
296	pub const SYS_fallocate = 285;
297	pub const SYS_timerfd_settime = 286;
298	pub const SYS_timerfd_gettime = 287;
299	pub const SYS_accept4 = 288;
300	pub const SYS_signalfd4 = 289;
301	pub const SYS_eventfd2 = 290;
302	pub const SYS_epoll_create1 = 291;
303	pub const SYS_dup3 = 292;
304	pub const SYS_pipe2 = 293;
305	pub const SYS_inotify_init1 = 294;
306	pub const SYS_preadv = 295;
307	pub const SYS_pwritev = 296;
308	pub const SYS_rt_tgsigqueueinfo = 297;
309	pub const SYS_perf_event_open = 298;
310	pub const SYS_recvmmsg = 299;
311	pub const SYS_fanotify_init = 300;
312	pub const SYS_fanotify_mark = 301;
313	pub const SYS_prlimit64 = 302;
314	pub const SYS_name_to_handle_at = 303;
315	pub const SYS_open_by_handle_at = 304;
316	pub const SYS_clock_adjtime = 305;
317	pub const SYS_syncfs = 306;
318	pub const SYS_sendmmsg = 307;
319	pub const SYS_setns = 308;
320	pub const SYS_getcpu = 309;
321	pub const SYS_process_vm_readv = 310;
322	pub const SYS_process_vm_writev = 311;
323	pub const SYS_kcmp = 312;
324	pub const SYS_finit_module = 313;
325	pub const SYS_sched_setattr = 314;
326	pub const SYS_sched_getattr = 315;
327	pub const SYS_renameat2 = 316;
328	pub const SYS_seccomp = 317;
329	pub const SYS_getrandom = 318;
330	pub const SYS_memfd_create = 319;
331	pub const SYS_kexec_file_load = 320;
332	pub const SYS_bpf = 321;
333	pub const SYS_execveat = 322;
334	pub const SYS_userfaultfd = 323;
335	pub const SYS_membarrier = 324;
336	pub const SYS_mlock2 = 325;
337	pub const SYS_copy_file_range = 326;
338	pub const SYS_preadv2 = 327;
339	pub const SYS_pwritev2 = 328;
340	pub const SYS_pkey_mprotect = 329;
341	pub const SYS_pkey_alloc = 330;
342	pub const SYS_pkey_free = 331;
343	pub const SYS_statx = 332;
344	pub const SYS_io_pgetevents = 333;
345	pub const SYS_rseq = 334;
346	pub const SYS_pidfd_send_signal = 424;
347	pub const SYS_io_uring_setup = 425;
348	pub const SYS_io_uring_enter = 426;
349	pub const SYS_io_uring_register = 427;
350
351	pub const O_CREAT = 0o100;
352	pub const O_EXCL = 0o200;
353	pub const O_NOCTTY = 0o400;
354	pub const O_TRUNC = 0o1000;
355	pub const O_APPEND = 0o2000;
356	pub const O_NONBLOCK = 0o4000;
357	pub const O_DSYNC = 0o10000;
358	pub const O_SYNC = 0o4010000;
359	pub const O_RSYNC = 0o4010000;
360	pub const O_DIRECTORY = 0o200000;
361	pub const O_NOFOLLOW = 0o400000;
362	pub const O_CLOEXEC = 0o2000000;
363
364	pub const O_ASYNC = 0o20000;
365	pub const O_DIRECT = 0o40000;
366	pub const O_LARGEFILE = 0;
367	pub const O_NOATIME = 0o1000000;
368	pub const O_PATH = 0o10000000;
369	pub const O_TMPFILE = 0o20200000;
370	pub const O_NDELAY = O_NONBLOCK;
371
372	pub const F_DUPFD = 0;
373	pub const F_GETFD = 1;
374	pub const F_SETFD = 2;
375	pub const F_GETFL = 3;
376	pub const F_SETFL = 4;
377
378	pub const F_SETOWN = 8;
379	pub const F_GETOWN = 9;
380	pub const F_SETSIG = 10;
381	pub const F_GETSIG = 11;
382
383	pub const F_GETLK = 5;
384	pub const F_SETLK = 6;
385	pub const F_SETLKW = 7;
386
387	pub const F_SETOWN_EX = 15;
388	pub const F_GETOWN_EX = 16;
389
390	pub const F_GETOWNER_UIDS = 17;
391
392	pub const AT_FDCWD = -100;
393	pub const AT_SYMLINK_NOFOLLOW = 0x100;
394	pub const AT_REMOVEDIR = 0x200;
395	pub const AT_SYMLINK_FOLLOW = 0x400;
396	pub const AT_NO_AUTOMOUNT = 0x800;
397	pub const AT_EMPTY_PATH = 0x1000;
398
399	pub const VDSO_USEFUL = true;
400	pub const VDSO_CGT_SYM = "__vdso_clock_gettime";
401	pub const VDSO_CGT_VER = "LINUX_2.6";
402	pub const VDSO_GETCPU_SYM = "__vdso_getcpu";
403	pub const VDSO_GETCPU_VER = "LINUX_2.6";
404
405	pub const ARCH_SET_GS = 0x1001;
406	pub const ARCH_SET_FS = 0x1002;
407	pub const ARCH_GET_FS = 0x1003;
408	pub const ARCH_GET_GS = 0x1004;
409
410	pub const msghdr = extern struct {
411	msg_name: ?*sockaddr,
412	msg_namelen: socklen_t,
413	msg_iov: [*]iovec,
414	msg_iovlen: i32,
415	__pad1: i32,
416	msg_control: ?*c_void,
417	msg_controllen: socklen_t,
418	__pad2: socklen_t,
419	msg_flags: i32,
420	};
421
422	pub const msghdr_const = extern struct {
423	msg_name: ?*const sockaddr,
424	msg_namelen: socklen_t,
425	msg_iov: [*]iovec_const,
426	msg_iovlen: i32,
427	__pad1: i32,
428	msg_control: ?*c_void,
429	msg_controllen: socklen_t,
430	__pad2: socklen_t,
431	msg_flags: i32,
432	};
433
434	/// Renamed to Stat to not conflict with the stat function.
435	pub const Stat = extern struct {
436	dev: u64,
437	ino: u64,
438	nlink: usize,
439
440	mode: u32,
441	uid: u32,
442	gid: u32,
443	__pad0: u32,
444	rdev: u64,
445	size: i64,
446	blksize: isize,
447	blocks: i64,
448
449	atim: timespec,
450	mtim: timespec,
451	ctim: timespec,
452	__unused: [3]isize,
453	};
454
455	pub const timespec = extern struct {
456	tv_sec: isize,
457	tv_nsec: isize,
458	};
459
460	pub const timeval = extern struct {
461	tv_sec: isize,
462	tv_usec: isize,
463	};
464
465	pub const timezone = extern struct {
466	tz_minuteswest: i32,
467	tz_dsttime: i32,
468	};
469
470	pub const Elf_Symndx = u32;

std/os/bits/netbsd.zig created+725

...	@@ -0,0 +1,725 @@
1	const std = @import("../../std.zig");
2	const maxInt = std.math.maxInt;
3
4	pub const fd_t = c_int;
5	pub const pid_t = c_int;
6
7	/// Renamed from `kevent` to `Kevent` to avoid conflict with function name.
8	pub const Kevent = extern struct {
9	ident: usize,
10	filter: i32,
11	flags: u32,
12	fflags: u32,
13	data: i64,
14	udata: usize,
15	};
16
17	pub const pthread_attr_t = extern struct {
18	pta_magic: u32,
19	pta_flags: c_int,
20	pta_private: *c_void,
21	};
22
23	pub const msghdr = extern struct {
24	/// optional address
25	msg_name: ?*sockaddr,
26
27	/// size of address
28	msg_namelen: socklen_t,
29
30	/// scatter/gather array
31	msg_iov: [*]iovec,
32
33	/// # elements in msg_iov
34	msg_iovlen: i32,
35
36	/// ancillary data
37	msg_control: ?*c_void,
38
39	/// ancillary data buffer len
40	msg_controllen: socklen_t,
41
42	/// flags on received message
43	msg_flags: i32,
44	};
45
46	pub const msghdr_const = extern struct {
47	/// optional address
48	msg_name: ?*const sockaddr,
49
50	/// size of address
51	msg_namelen: socklen_t,
52
53	/// scatter/gather array
54	msg_iov: [*]iovec_const,
55
56	/// # elements in msg_iov
57	msg_iovlen: i32,
58
59	/// ancillary data
60	msg_control: ?*c_void,
61
62	/// ancillary data buffer len
63	msg_controllen: socklen_t,
64
65	/// flags on received message
66	msg_flags: i32,
67	};
68
69	pub const Stat = extern struct {
70	dev: u64,
71	mode: u32,
72	ino: u64,
73	nlink: usize,
74
75	uid: u32,
76	gid: u32,
77	rdev: u64,
78
79	atim: timespec,
80	mtim: timespec,
81	ctim: timespec,
82	birthtim: timespec,
83
84	size: i64,
85	blocks: i64,
86	blksize: isize,
87	flags: u32,
88	gen: u32,
89	__spare: [2]u32,
90	};
91
92	pub const timespec = extern struct {
93	tv_sec: i64,
94	tv_nsec: isize,
95	};
96
97	pub const dirent = extern struct {
98	d_fileno: u64,
99	d_reclen: u16,
100	d_namlen: u16,
101	d_type: u8,
102	d_off: i64,
103	d_name: [512]u8,
104	};
105
106	pub const in_port_t = u16;
107	pub const sa_family_t = u8;
108
109	pub const sockaddr = extern union {
110	in: sockaddr_in,
111	in6: sockaddr_in6,
112	};
113
114	pub const sockaddr_in = extern struct {
115	len: u8,
116	family: sa_family_t,
117	port: in_port_t,
118	addr: u32,
119	zero: [8]u8,
120	};
121
122	pub const sockaddr_in6 = extern struct {
123	len: u8,
124	family: sa_family_t,
125	port: in_port_t,
126	flowinfo: u32,
127	addr: [16]u8,
128	scope_id: u32,
129	};
130
131	pub const CTL_KERN = 1;
132	pub const CTL_DEBUG = 5;
133
134	pub const KERN_PROC_ARGS = 48; // struct: process argv/env
135	pub const KERN_PROC_PATHNAME = 5; // path to executable
136
137	pub const PATH_MAX = 1024;
138
139	pub const STDIN_FILENO = 0;
140	pub const STDOUT_FILENO = 1;
141	pub const STDERR_FILENO = 2;
142
143	pub const PROT_NONE = 0;
144	pub const PROT_READ = 1;
145	pub const PROT_WRITE = 2;
146	pub const PROT_EXEC = 4;
147
148	pub const CLOCK_REALTIME = 0;
149	pub const CLOCK_VIRTUAL = 1;
150	pub const CLOCK_PROF = 2;
151	pub const CLOCK_MONOTONIC = 3;
152	pub const CLOCK_THREAD_CPUTIME_ID = 0x20000000;
153	pub const CLOCK_PROCESS_CPUTIME_ID = 0x40000000;
154
155	pub const MAP_FAILED = @intToPtr(*c_void, maxInt(usize));
156	pub const MAP_SHARED = 0x0001;
157	pub const MAP_PRIVATE = 0x0002;
158	pub const MAP_REMAPDUP = 0x0004;
159	pub const MAP_FIXED = 0x0010;
160	pub const MAP_RENAME = 0x0020;
161	pub const MAP_NORESERVE = 0x0040;
162	pub const MAP_INHERIT = 0x0080;
163	pub const MAP_HASSEMAPHORE = 0x0200;
164	pub const MAP_TRYFIXED = 0x0400;
165	pub const MAP_WIRED = 0x0800;
166
167	pub const MAP_FILE = 0x0000;
168	pub const MAP_NOSYNC = 0x0800;
169	pub const MAP_ANON = 0x1000;
170	pub const MAP_ANONYMOUS = MAP_ANON;
171	pub const MAP_STACK = 0x2000;
172
173	pub const WNOHANG = 0x00000001;
174	pub const WUNTRACED = 0x00000002;
175	pub const WSTOPPED = WUNTRACED;
176	pub const WCONTINUED = 0x00000010;
177	pub const WNOWAIT = 0x00010000;
178	pub const WEXITED = 0x00000020;
179	pub const WTRAPPED = 0x00000040;
180
181	pub const SA_ONSTACK = 0x0001;
182	pub const SA_RESTART = 0x0002;
183	pub const SA_RESETHAND = 0x0004;
184	pub const SA_NOCLDSTOP = 0x0008;
185	pub const SA_NODEFER = 0x0010;
186	pub const SA_NOCLDWAIT = 0x0020;
187	pub const SA_SIGINFO = 0x0040;
188
189	pub const SIGHUP = 1;
190	pub const SIGINT = 2;
191	pub const SIGQUIT = 3;
192	pub const SIGILL = 4;
193	pub const SIGTRAP = 5;
194	pub const SIGABRT = 6;
195	pub const SIGIOT = SIGABRT;
196	pub const SIGEMT = 7;
197	pub const SIGFPE = 8;
198	pub const SIGKILL = 9;
199	pub const SIGBUS = 10;
200	pub const SIGSEGV = 11;
201	pub const SIGSYS = 12;
202	pub const SIGPIPE = 13;
203	pub const SIGALRM = 14;
204	pub const SIGTERM = 15;
205	pub const SIGURG = 16;
206	pub const SIGSTOP = 17;
207	pub const SIGTSTP = 18;
208	pub const SIGCONT = 19;
209	pub const SIGCHLD = 20;
210	pub const SIGTTIN = 21;
211	pub const SIGTTOU = 22;
212	pub const SIGIO = 23;
213	pub const SIGXCPU = 24;
214	pub const SIGXFSZ = 25;
215	pub const SIGVTALRM = 26;
216	pub const SIGPROF = 27;
217	pub const SIGWINCH = 28;
218	pub const SIGINFO = 29;
219	pub const SIGUSR1 = 30;
220	pub const SIGUSR2 = 31;
221	pub const SIGPWR = 32;
222
223	pub const SIGRTMIN = 33;
224	pub const SIGRTMAX = 63;
225
226	// access function
227	pub const F_OK = 0; // test for existence of file
228	pub const X_OK = 1; // test for execute or search permission
229	pub const W_OK = 2; // test for write permission
230	pub const R_OK = 4; // test for read permission
231
232	pub const O_RDONLY = 0x0000;
233	pub const O_WRONLY = 0x0001;
234	pub const O_RDWR = 0x0002;
235	pub const O_ACCMODE = 0x0003;
236
237	pub const O_CREAT = 0x0200;
238	pub const O_EXCL = 0x0800;
239	pub const O_NOCTTY = 0x8000;
240	pub const O_TRUNC = 0x0400;
241	pub const O_APPEND = 0x0008;
242	pub const O_NONBLOCK = 0x0004;
243	pub const O_DSYNC = 0x00010000;
244	pub const O_SYNC = 0x0080;
245	pub const O_RSYNC = 0x00020000;
246	pub const O_DIRECTORY = 0x00080000;
247	pub const O_NOFOLLOW = 0x00000100;
248	pub const O_CLOEXEC = 0x00400000;
249
250	pub const O_ASYNC = 0x0040;
251	pub const O_DIRECT = 0x00080000;
252	pub const O_LARGEFILE = 0;
253	pub const O_NOATIME = 0;
254	pub const O_PATH = 0;
255	pub const O_TMPFILE = 0;
256	pub const O_NDELAY = O_NONBLOCK;
257
258	pub const F_DUPFD = 0;
259	pub const F_GETFD = 1;
260	pub const F_SETFD = 2;
261	pub const F_GETFL = 3;
262	pub const F_SETFL = 4;
263
264	pub const F_GETOWN = 5;
265	pub const F_SETOWN = 6;
266
267	pub const F_GETLK = 7;
268	pub const F_SETLK = 8;
269	pub const F_SETLKW = 9;
270
271	pub const SEEK_SET = 0;
272	pub const SEEK_CUR = 1;
273	pub const SEEK_END = 2;
274
275	pub const SIG_BLOCK = 1;
276	pub const SIG_UNBLOCK = 2;
277	pub const SIG_SETMASK = 3;
278
279	pub const SOCK_STREAM = 1;
280	pub const SOCK_DGRAM = 2;
281	pub const SOCK_RAW = 3;
282	pub const SOCK_RDM = 4;
283	pub const SOCK_SEQPACKET = 5;
284
285	pub const SOCK_CLOEXEC = 0x10000000;
286	pub const SOCK_NONBLOCK = 0x20000000;
287
288	pub const PROTO_ip = 0;
289	pub const PROTO_icmp = 1;
290	pub const PROTO_igmp = 2;
291	pub const PROTO_ggp = 3;
292	pub const PROTO_ipencap = 4;
293	pub const PROTO_tcp = 6;
294	pub const PROTO_egp = 8;
295	pub const PROTO_pup = 12;
296	pub const PROTO_udp = 17;
297	pub const PROTO_xns_idp = 22;
298	pub const PROTO_iso_tp4 = 29;
299	pub const PROTO_ipv6 = 41;
300	pub const PROTO_ipv6_route = 43;
301	pub const PROTO_ipv6_frag = 44;
302	pub const PROTO_rsvp = 46;
303	pub const PROTO_gre = 47;
304	pub const PROTO_esp = 50;
305	pub const PROTO_ah = 51;
306	pub const PROTO_ipv6_icmp = 58;
307	pub const PROTO_ipv6_nonxt = 59;
308	pub const PROTO_ipv6_opts = 60;
309	pub const PROTO_encap = 98;
310	pub const PROTO_pim = 103;
311	pub const PROTO_raw = 255;
312
313	pub const PF_UNSPEC = 0;
314	pub const PF_LOCAL = 1;
315	pub const PF_UNIX = PF_LOCAL;
316	pub const PF_FILE = PF_LOCAL;
317	pub const PF_INET = 2;
318	pub const PF_APPLETALK = 16;
319	pub const PF_INET6 = 24;
320	pub const PF_DECnet = 12;
321	pub const PF_KEY = 29;
322	pub const PF_ROUTE = 34;
323	pub const PF_SNA = 11;
324	pub const PF_MPLS = 33;
325	pub const PF_CAN = 35;
326	pub const PF_BLUETOOTH = 31;
327	pub const PF_ISDN = 26;
328	pub const PF_MAX = 37;
329
330	pub const AF_UNSPEC = PF_UNSPEC;
331	pub const AF_LOCAL = PF_LOCAL;
332	pub const AF_UNIX = AF_LOCAL;
333	pub const AF_FILE = AF_LOCAL;
334	pub const AF_INET = PF_INET;
335	pub const AF_APPLETALK = PF_APPLETALK;
336	pub const AF_INET6 = PF_INET6;
337	pub const AF_KEY = PF_KEY;
338	pub const AF_ROUTE = PF_ROUTE;
339	pub const AF_SNA = PF_SNA;
340	pub const AF_MPLS = PF_MPLS;
341	pub const AF_CAN = PF_CAN;
342	pub const AF_BLUETOOTH = PF_BLUETOOTH;
343	pub const AF_ISDN = PF_ISDN;
344	pub const AF_MAX = PF_MAX;
345
346	pub const DT_UNKNOWN = 0;
347	pub const DT_FIFO = 1;
348	pub const DT_CHR = 2;
349	pub const DT_DIR = 4;
350	pub const DT_BLK = 6;
351	pub const DT_REG = 8;
352	pub const DT_LNK = 10;
353	pub const DT_SOCK = 12;
354	pub const DT_WHT = 14;
355
356	/// add event to kq (implies enable)
357	pub const EV_ADD = 0x0001;
358
359	/// delete event from kq
360	pub const EV_DELETE = 0x0002;
361
362	/// enable event
363	pub const EV_ENABLE = 0x0004;
364
365	/// disable event (not reported)
366	pub const EV_DISABLE = 0x0008;
367
368	/// only report one occurrence
369	pub const EV_ONESHOT = 0x0010;
370
371	/// clear event state after reporting
372	pub const EV_CLEAR = 0x0020;
373
374	/// force immediate event output
375	/// ... with or without EV_ERROR
376	/// ... use KEVENT_FLAG_ERROR_EVENTS
377	/// on syscalls supporting flags
378	pub const EV_RECEIPT = 0x0040;
379
380	/// disable event after reporting
381	pub const EV_DISPATCH = 0x0080;
382
383	pub const EVFILT_READ = 0;
384	pub const EVFILT_WRITE = 1;
385
386	/// attached to aio requests
387	pub const EVFILT_AIO = 2;
388
389	/// attached to vnodes
390	pub const EVFILT_VNODE = 3;
391
392	/// attached to struct proc
393	pub const EVFILT_PROC = 4;
394
395	/// attached to struct proc
396	pub const EVFILT_SIGNAL = 5;
397
398	/// timers
399	pub const EVFILT_TIMER = 6;
400
401	/// Filesystem events
402	pub const EVFILT_FS = 7;
403
404	/// On input, NOTE_TRIGGER causes the event to be triggered for output.
405	pub const NOTE_TRIGGER = 0x08000000;
406
407	/// low water mark
408	pub const NOTE_LOWAT = 0x00000001;
409
410	/// vnode was removed
411	pub const NOTE_DELETE = 0x00000001;
412
413	/// data contents changed
414	pub const NOTE_WRITE = 0x00000002;
415
416	/// size increased
417	pub const NOTE_EXTEND = 0x00000004;
418
419	/// attributes changed
420	pub const NOTE_ATTRIB = 0x00000008;
421
422	/// link count changed
423	pub const NOTE_LINK = 0x00000010;
424
425	/// vnode was renamed
426	pub const NOTE_RENAME = 0x00000020;
427
428	/// vnode access was revoked
429	pub const NOTE_REVOKE = 0x00000040;
430
431	/// process exited
432	pub const NOTE_EXIT = 0x80000000;
433
434	/// process forked
435	pub const NOTE_FORK = 0x40000000;
436
437	/// process exec'd
438	pub const NOTE_EXEC = 0x20000000;
439
440	/// mask for signal & exit status
441	pub const NOTE_PDATAMASK = 0x000fffff;
442	pub const NOTE_PCTRLMASK = 0xf0000000;
443
444	pub const TIOCCBRK = 0x2000747a;
445	pub const TIOCCDTR = 0x20007478;
446	pub const TIOCCONS = 0x80047462;
447	pub const TIOCDCDTIMESTAMP = 0x40107458;
448	pub const TIOCDRAIN = 0x2000745e;
449	pub const TIOCEXCL = 0x2000740d;
450	pub const TIOCEXT = 0x80047460;
451	pub const TIOCFLAG_CDTRCTS = 0x10;
452	pub const TIOCFLAG_CLOCAL = 0x2;
453	pub const TIOCFLAG_CRTSCTS = 0x4;
454	pub const TIOCFLAG_MDMBUF = 0x8;
455	pub const TIOCFLAG_SOFTCAR = 0x1;
456	pub const TIOCFLUSH = 0x80047410;
457	pub const TIOCGETA = 0x402c7413;
458	pub const TIOCGETD = 0x4004741a;
459	pub const TIOCGFLAGS = 0x4004745d;
460	pub const TIOCGLINED = 0x40207442;
461	pub const TIOCGPGRP = 0x40047477;
462	pub const TIOCGQSIZE = 0x40047481;
463	pub const TIOCGRANTPT = 0x20007447;
464	pub const TIOCGSID = 0x40047463;
465	pub const TIOCGSIZE = 0x40087468;
466	pub const TIOCGWINSZ = 0x40087468;
467	pub const TIOCMBIC = 0x8004746b;
468	pub const TIOCMBIS = 0x8004746c;
469	pub const TIOCMGET = 0x4004746a;
470	pub const TIOCMSET = 0x8004746d;
471	pub const TIOCM_CAR = 0x40;
472	pub const TIOCM_CD = 0x40;
473	pub const TIOCM_CTS = 0x20;
474	pub const TIOCM_DSR = 0x100;
475	pub const TIOCM_DTR = 0x2;
476	pub const TIOCM_LE = 0x1;
477	pub const TIOCM_RI = 0x80;
478	pub const TIOCM_RNG = 0x80;
479	pub const TIOCM_RTS = 0x4;
480	pub const TIOCM_SR = 0x10;
481	pub const TIOCM_ST = 0x8;
482	pub const TIOCNOTTY = 0x20007471;
483	pub const TIOCNXCL = 0x2000740e;
484	pub const TIOCOUTQ = 0x40047473;
485	pub const TIOCPKT = 0x80047470;
486	pub const TIOCPKT_DATA = 0x0;
487	pub const TIOCPKT_DOSTOP = 0x20;
488	pub const TIOCPKT_FLUSHREAD = 0x1;
489	pub const TIOCPKT_FLUSHWRITE = 0x2;
490	pub const TIOCPKT_IOCTL = 0x40;
491	pub const TIOCPKT_NOSTOP = 0x10;
492	pub const TIOCPKT_START = 0x8;
493	pub const TIOCPKT_STOP = 0x4;
494	pub const TIOCPTMGET = 0x40287446;
495	pub const TIOCPTSNAME = 0x40287448;
496	pub const TIOCRCVFRAME = 0x80087445;
497	pub const TIOCREMOTE = 0x80047469;
498	pub const TIOCSBRK = 0x2000747b;
499	pub const TIOCSCTTY = 0x20007461;
500	pub const TIOCSDTR = 0x20007479;
501	pub const TIOCSETA = 0x802c7414;
502	pub const TIOCSETAF = 0x802c7416;
503	pub const TIOCSETAW = 0x802c7415;
504	pub const TIOCSETD = 0x8004741b;
505	pub const TIOCSFLAGS = 0x8004745c;
506	pub const TIOCSIG = 0x2000745f;
507	pub const TIOCSLINED = 0x80207443;
508	pub const TIOCSPGRP = 0x80047476;
509	pub const TIOCSQSIZE = 0x80047480;
510	pub const TIOCSSIZE = 0x80087467;
511	pub const TIOCSTART = 0x2000746e;
512	pub const TIOCSTAT = 0x80047465;
513	pub const TIOCSTI = 0x80017472;
514	pub const TIOCSTOP = 0x2000746f;
515	pub const TIOCSWINSZ = 0x80087467;
516	pub const TIOCUCNTL = 0x80047466;
517	pub const TIOCXMTFRAME = 0x80087444;
518
519	pub fn WEXITSTATUS(s: u32) u32 {
520	return (s >> 8) & 0xff;
521	}
522	pub fn WTERMSIG(s: u32) u32 {
523	return s & 0x7f;
524	}
525	pub fn WSTOPSIG(s: u32) u32 {
526	return WEXITSTATUS(s);
527	}
528	pub fn WIFEXITED(s: u32) bool {
529	return WTERMSIG(s) == 0;
530	}
531
532	pub fn WIFCONTINUED(s: u32) bool {
533	return ((s & 0x7f) == 0xffff);
534	}
535
536	pub fn WIFSTOPPED(s: u32) bool {
537	return ((s & 0x7f != 0x7f) and !WIFCONTINUED(s));
538	}
539
540	pub fn WIFSIGNALED(s: u32) bool {
541	return !WIFSTOPPED(s) and !WIFCONTINUED(s) and !WIFEXITED(s);
542	}
543
544	pub const winsize = extern struct {
545	ws_row: u16,
546	ws_col: u16,
547	ws_xpixel: u16,
548	ws_ypixel: u16,
549	};
550
551	const NSIG = 32;
552
553	pub const SIG_ERR = @intToPtr(extern fn (i32) void, maxInt(usize));
554	pub const SIG_DFL = @intToPtr(extern fn (i32) void, 0);
555	pub const SIG_IGN = @intToPtr(extern fn (i32) void, 1);
556
557	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
558	pub const Sigaction = extern struct {
559	/// signal handler
560	__sigaction_u: extern union {
561	__sa_handler: extern fn (i32) void,
562	__sa_sigaction: extern fn (i32, *__siginfo, usize) void,
563	},
564
565	/// see signal options
566	sa_flags: u32,
567
568	/// signal mask to apply
569	sa_mask: sigset_t,
570	};
571
572	pub const _SIG_WORDS = 4;
573	pub const _SIG_MAXSIG = 128;
574
575	pub inline fn _SIG_IDX(sig: usize) usize {
576	return sig - 1;
577	}
578	pub inline fn _SIG_WORD(sig: usize) usize {
579	return_SIG_IDX(sig) >> 5;
580	}
581	pub inline fn _SIG_BIT(sig: usize) usize {
582	return 1 << (_SIG_IDX(sig) & 31);
583	}
584	pub inline fn _SIG_VALID(sig: usize) usize {
585	return sig <= _SIG_MAXSIG and sig > 0;
586	}
587
588	pub const sigset_t = extern struct {
589	__bits: [_SIG_WORDS]u32,
590	};
591
592	pub const EPERM = 1; // Operation not permitted
593	pub const ENOENT = 2; // No such file or directory
594	pub const ESRCH = 3; // No such process
595	pub const EINTR = 4; // Interrupted system call
596	pub const EIO = 5; // Input/output error
597	pub const ENXIO = 6; // Device not configured
598	pub const E2BIG = 7; // Argument list too long
599	pub const ENOEXEC = 8; // Exec format error
600	pub const EBADF = 9; // Bad file descriptor
601	pub const ECHILD = 10; // No child processes
602	pub const EDEADLK = 11; // Resource deadlock avoided
603	// 11 was EAGAIN
604	pub const ENOMEM = 12; // Cannot allocate memory
605	pub const EACCES = 13; // Permission denied
606	pub const EFAULT = 14; // Bad address
607	pub const ENOTBLK = 15; // Block device required
608	pub const EBUSY = 16; // Device busy
609	pub const EEXIST = 17; // File exists
610	pub const EXDEV = 18; // Cross-device link
611	pub const ENODEV = 19; // Operation not supported by device
612	pub const ENOTDIR = 20; // Not a directory
613	pub const EISDIR = 21; // Is a directory
614	pub const EINVAL = 22; // Invalid argument
615	pub const ENFILE = 23; // Too many open files in system
616	pub const EMFILE = 24; // Too many open files
617	pub const ENOTTY = 25; // Inappropriate ioctl for device
618	pub const ETXTBSY = 26; // Text file busy
619	pub const EFBIG = 27; // File too large
620	pub const ENOSPC = 28; // No space left on device
621	pub const ESPIPE = 29; // Illegal seek
622	pub const EROFS = 30; // Read-only file system
623	pub const EMLINK = 31; // Too many links
624	pub const EPIPE = 32; // Broken pipe
625
626	// math software
627	pub const EDOM = 33; // Numerical argument out of domain
628	pub const ERANGE = 34; // Result too large or too small
629
630	// non-blocking and interrupt i/o
631	pub const EAGAIN = 35; // Resource temporarily unavailable
632	pub const EWOULDBLOCK = EAGAIN; // Operation would block
633	pub const EINPROGRESS = 36; // Operation now in progress
634	pub const EALREADY = 37; // Operation already in progress
635
636	// ipc/network software -- argument errors
637	pub const ENOTSOCK = 38; // Socket operation on non-socket
638	pub const EDESTADDRREQ = 39; // Destination address required
639	pub const EMSGSIZE = 40; // Message too long
640	pub const EPROTOTYPE = 41; // Protocol wrong type for socket
641	pub const ENOPROTOOPT = 42; // Protocol option not available
642	pub const EPROTONOSUPPORT = 43; // Protocol not supported
643	pub const ESOCKTNOSUPPORT = 44; // Socket type not supported
644	pub const EOPNOTSUPP = 45; // Operation not supported
645	pub const EPFNOSUPPORT = 46; // Protocol family not supported
646	pub const EAFNOSUPPORT = 47; // Address family not supported by protocol family
647	pub const EADDRINUSE = 48; // Address already in use
648	pub const EADDRNOTAVAIL = 49; // Can't assign requested address
649
650	// ipc/network software -- operational errors
651	pub const ENETDOWN = 50; // Network is down
652	pub const ENETUNREACH = 51; // Network is unreachable
653	pub const ENETRESET = 52; // Network dropped connection on reset
654	pub const ECONNABORTED = 53; // Software caused connection abort
655	pub const ECONNRESET = 54; // Connection reset by peer
656	pub const ENOBUFS = 55; // No buffer space available
657	pub const EISCONN = 56; // Socket is already connected
658	pub const ENOTCONN = 57; // Socket is not connected
659	pub const ESHUTDOWN = 58; // Can't send after socket shutdown
660	pub const ETOOMANYREFS = 59; // Too many references: can't splice
661	pub const ETIMEDOUT = 60; // Operation timed out
662	pub const ECONNREFUSED = 61; // Connection refused
663
664	pub const ELOOP = 62; // Too many levels of symbolic links
665	pub const ENAMETOOLONG = 63; // File name too long
666
667	// should be rearranged
668	pub const EHOSTDOWN = 64; // Host is down
669	pub const EHOSTUNREACH = 65; // No route to host
670	pub const ENOTEMPTY = 66; // Directory not empty
671
672	// quotas & mush
673	pub const EPROCLIM = 67; // Too many processes
674	pub const EUSERS = 68; // Too many users
675	pub const EDQUOT = 69; // Disc quota exceeded
676
677	// Network File System
678	pub const ESTALE = 70; // Stale NFS file handle
679	pub const EREMOTE = 71; // Too many levels of remote in path
680	pub const EBADRPC = 72; // RPC struct is bad
681	pub const ERPCMISMATCH = 73; // RPC version wrong
682	pub const EPROGUNAVAIL = 74; // RPC prog. not avail
683	pub const EPROGMISMATCH = 75; // Program version wrong
684	pub const EPROCUNAVAIL = 76; // Bad procedure for program
685
686	pub const ENOLCK = 77; // No locks available
687	pub const ENOSYS = 78; // Function not implemented
688
689	pub const EFTYPE = 79; // Inappropriate file type or format
690	pub const EAUTH = 80; // Authentication error
691	pub const ENEEDAUTH = 81; // Need authenticator
692
693	// SystemV IPC
694	pub const EIDRM = 82; // Identifier removed
695	pub const ENOMSG = 83; // No message of desired type
696	pub const EOVERFLOW = 84; // Value too large to be stored in data type
697
698	// Wide/multibyte-character handling, ISO/IEC 9899/AMD1:1995
699	pub const EILSEQ = 85; // Illegal byte sequence
700
701	// From IEEE Std 1003.1-2001
702	// Base, Realtime, Threads or Thread Priority Scheduling option errors
703	pub const ENOTSUP = 86; // Not supported
704
705	// Realtime option errors
706	pub const ECANCELED = 87; // Operation canceled
707
708	// Realtime, XSI STREAMS option errors
709	pub const EBADMSG = 88; // Bad or Corrupt message
710
711	// XSI STREAMS option errors
712	pub const ENODATA = 89; // No message available
713	pub const ENOSR = 90; // No STREAM resources
714	pub const ENOSTR = 91; // Not a STREAM
715	pub const ETIME = 92; // STREAM ioctl timeout
716
717	// File system extended attribute errors
718	pub const ENOATTR = 93; // Attribute not found
719
720	// Realtime, XSI STREAMS option errors
721	pub const EMULTIHOP = 94; // Multihop attempted
722	pub const ENOLINK = 95; // Link has been severed
723	pub const EPROTO = 96; // Protocol error
724
725	pub const ELAST = 96; // Must equal largest errno

std/os/bits/wasi.zig created+307

...	@@ -0,0 +1,307 @@
1	pub const STDIN_FILENO = 0;
2	pub const STDOUT_FILENO = 1;
3	pub const STDERR_FILENO = 2;
4
5	pub const advice_t = u8;
6	pub const ADVICE_NORMAL: advice_t = 0;
7	pub const ADVICE_SEQUENTIAL: advice_t = 1;
8	pub const ADVICE_RANDOM: advice_t = 2;
9	pub const ADVICE_WILLNEED: advice_t = 3;
10	pub const ADVICE_DONTNEED: advice_t = 4;
11	pub const ADVICE_NOREUSE: advice_t = 5;
12
13	pub const clockid_t = u32;
14	pub const CLOCK_REALTIME: clockid_t = 0;
15	pub const CLOCK_MONOTONIC: clockid_t = 1;
16	pub const CLOCK_PROCESS_CPUTIME_ID: clockid_t = 2;
17	pub const CLOCK_THREAD_CPUTIME_ID: clockid_t = 3;
18
19	pub const device_t = u64;
20
21	pub const dircookie_t = u64;
22	pub const DIRCOOKIE_START: dircookie_t = 0;
23
24	pub const dirent_t = extern struct {
25	d_next: dircookie_t,
26	d_ino: inode_t,
27	d_namlen: u32,
28	d_type: filetype_t,
29	};
30
31	pub const errno_t = u16;
32	pub const ESUCCESS: errno_t = 0;
33	pub const E2BIG: errno_t = 1;
34	pub const EACCES: errno_t = 2;
35	pub const EADDRINUSE: errno_t = 3;
36	pub const EADDRNOTAVAIL: errno_t = 4;
37	pub const EAFNOSUPPORT: errno_t = 5;
38	pub const EAGAIN: errno_t = 6;
39	pub const EALREADY: errno_t = 7;
40	pub const EBADF: errno_t = 8;
41	pub const EBADMSG: errno_t = 9;
42	pub const EBUSY: errno_t = 10;
43	pub const ECANCELED: errno_t = 11;
44	pub const ECHILD: errno_t = 12;
45	pub const ECONNABORTED: errno_t = 13;
46	pub const ECONNREFUSED: errno_t = 14;
47	pub const ECONNRESET: errno_t = 15;
48	pub const EDEADLK: errno_t = 16;
49	pub const EDESTADDRREQ: errno_t = 17;
50	pub const EDOM: errno_t = 18;
51	pub const EDQUOT: errno_t = 19;
52	pub const EEXIST: errno_t = 20;
53	pub const EFAULT: errno_t = 21;
54	pub const EFBIG: errno_t = 22;
55	pub const EHOSTUNREACH: errno_t = 23;
56	pub const EIDRM: errno_t = 24;
57	pub const EILSEQ: errno_t = 25;
58	pub const EINPROGRESS: errno_t = 26;
59	pub const EINTR: errno_t = 27;
60	pub const EINVAL: errno_t = 28;
61	pub const EIO: errno_t = 29;
62	pub const EISCONN: errno_t = 30;
63	pub const EISDIR: errno_t = 31;
64	pub const ELOOP: errno_t = 32;
65	pub const EMFILE: errno_t = 33;
66	pub const EMLINK: errno_t = 34;
67	pub const EMSGSIZE: errno_t = 35;
68	pub const EMULTIHOP: errno_t = 36;
69	pub const ENAMETOOLONG: errno_t = 37;
70	pub const ENETDOWN: errno_t = 38;
71	pub const ENETRESET: errno_t = 39;
72	pub const ENETUNREACH: errno_t = 40;
73	pub const ENFILE: errno_t = 41;
74	pub const ENOBUFS: errno_t = 42;
75	pub const ENODEV: errno_t = 43;
76	pub const ENOENT: errno_t = 44;
77	pub const ENOEXEC: errno_t = 45;
78	pub const ENOLCK: errno_t = 46;
79	pub const ENOLINK: errno_t = 47;
80	pub const ENOMEM: errno_t = 48;
81	pub const ENOMSG: errno_t = 49;
82	pub const ENOPROTOOPT: errno_t = 50;
83	pub const ENOSPC: errno_t = 51;
84	pub const ENOSYS: errno_t = 52;
85	pub const ENOTCONN: errno_t = 53;
86	pub const ENOTDIR: errno_t = 54;
87	pub const ENOTEMPTY: errno_t = 55;
88	pub const ENOTRECOVERABLE: errno_t = 56;
89	pub const ENOTSOCK: errno_t = 57;
90	pub const ENOTSUP: errno_t = 58;
91	pub const ENOTTY: errno_t = 59;
92	pub const ENXIO: errno_t = 60;
93	pub const EOVERFLOW: errno_t = 61;
94	pub const EOWNERDEAD: errno_t = 62;
95	pub const EPERM: errno_t = 63;
96	pub const EPIPE: errno_t = 64;
97	pub const EPROTO: errno_t = 65;
98	pub const EPROTONOSUPPORT: errno_t = 66;
99	pub const EPROTOTYPE: errno_t = 67;
100	pub const ERANGE: errno_t = 68;
101	pub const EROFS: errno_t = 69;
102	pub const ESPIPE: errno_t = 70;
103	pub const ESRCH: errno_t = 71;
104	pub const ESTALE: errno_t = 72;
105	pub const ETIMEDOUT: errno_t = 73;
106	pub const ETXTBSY: errno_t = 74;
107	pub const EXDEV: errno_t = 75;
108	pub const ENOTCAPABLE: errno_t = 76;
109
110	pub const event_t = extern struct {
111	userdata: userdata_t,
112	@"error": errno_t,
113	@"type": eventtype_t,
114	u: extern union {
115	fd_readwrite: extern struct {
116	nbytes: filesize_t,
117	flags: eventrwflags_t,
118	},
119	},
120	};
121
122	pub const eventrwflags_t = u16;
123	pub const EVENT_FD_READWRITE_HANGUP: eventrwflags_t = 0x0001;
124
125	pub const eventtype_t = u8;
126	pub const EVENTTYPE_CLOCK: eventtype_t = 0;
127	pub const EVENTTYPE_FD_READ: eventtype_t = 1;
128	pub const EVENTTYPE_FD_WRITE: eventtype_t = 2;
129
130	pub const exitcode_t = u32;
131
132	pub const fd_t = u32;
133
134	pub const fdflags_t = u16;
135	pub const FDFLAG_APPEND: fdflags_t = 0x0001;
136	pub const FDFLAG_DSYNC: fdflags_t = 0x0002;
137	pub const FDFLAG_NONBLOCK: fdflags_t = 0x0004;
138	pub const FDFLAG_RSYNC: fdflags_t = 0x0008;
139	pub const FDFLAG_SYNC: fdflags_t = 0x0010;
140
141	const fdstat_t = extern struct {
142	fs_filetype: filetype_t,
143	fs_flags: fdflags_t,
144	fs_rights_base: rights_t,
145	fs_rights_inheriting: rights_t,
146	};
147
148	pub const filedelta_t = i64;
149
150	pub const filesize_t = u64;
151
152	pub const filestat_t = extern struct {
153	st_dev: device_t,
154	st_ino: inode_t,
155	st_filetype: filetype_t,
156	st_nlink: linkcount_t,
157	st_size: filesize_t,
158	st_atim: timestamp_t,
159	st_mtim: timestamp_t,
160	st_ctim: timestamp_t,
161	};
162
163	pub const filetype_t = u8;
164	pub const FILETYPE_UNKNOWN: filetype_t = 0;
165	pub const FILETYPE_BLOCK_DEVICE: filetype_t = 1;
166	pub const FILETYPE_CHARACTER_DEVICE: filetype_t = 2;
167	pub const FILETYPE_DIRECTORY: filetype_t = 3;
168	pub const FILETYPE_REGULAR_FILE: filetype_t = 4;
169	pub const FILETYPE_SOCKET_DGRAM: filetype_t = 5;
170	pub const FILETYPE_SOCKET_STREAM: filetype_t = 6;
171	pub const FILETYPE_SYMBOLIC_LINK: filetype_t = 7;
172
173	pub const fstflags_t = u16;
174	pub const FILESTAT_SET_ATIM: fstflags_t = 0x0001;
175	pub const FILESTAT_SET_ATIM_NOW: fstflags_t = 0x0002;
176	pub const FILESTAT_SET_MTIM: fstflags_t = 0x0004;
177	pub const FILESTAT_SET_MTIM_NOW: fstflags_t = 0x0008;
178
179	pub const inode_t = u64;
180
181	pub const linkcount_t = u32;
182
183	pub const lookupflags_t = u32;
184	pub const LOOKUP_SYMLINK_FOLLOW: lookupflags_t = 0x00000001;
185
186	pub const oflags_t = u16;
187	pub const O_CREAT: oflags_t = 0x0001;
188	pub const O_DIRECTORY: oflags_t = 0x0002;
189	pub const O_EXCL: oflags_t = 0x0004;
190	pub const O_TRUNC: oflags_t = 0x0008;
191
192	pub const preopentype_t = u8;
193	pub const PREOPENTYPE_DIR: preopentype_t = 0;
194
195	pub const prestat_t = extern struct {
196	pr_type: preopentype_t,
197	u: extern union {
198	dir: extern struct {
199	pr_name_len: usize,
200	},
201	},
202	};
203
204	pub const riflags_t = u16;
205	pub const SOCK_RECV_PEEK: riflags_t = 0x0001;
206	pub const SOCK_RECV_WAITALL: riflags_t = 0x0002;
207
208	pub const rights_t = u64;
209	pub const RIGHT_FD_DATASYNC: rights_t = 0x0000000000000001;
210	pub const RIGHT_FD_READ: rights_t = 0x0000000000000002;
211	pub const RIGHT_FD_SEEK: rights_t = 0x0000000000000004;
212	pub const RIGHT_FD_FDSTAT_SET_FLAGS: rights_t = 0x0000000000000008;
213	pub const RIGHT_FD_SYNC: rights_t = 0x0000000000000010;
214	pub const RIGHT_FD_TELL: rights_t = 0x0000000000000020;
215	pub const RIGHT_FD_WRITE: rights_t = 0x0000000000000040;
216	pub const RIGHT_FD_ADVISE: rights_t = 0x0000000000000080;
217	pub const RIGHT_FD_ALLOCATE: rights_t = 0x0000000000000100;
218	pub const RIGHT_PATH_CREATE_DIRECTORY: rights_t = 0x0000000000000200;
219	pub const RIGHT_PATH_CREATE_FILE: rights_t = 0x0000000000000400;
220	pub const RIGHT_PATH_LINK_SOURCE: rights_t = 0x0000000000000800;
221	pub const RIGHT_PATH_LINK_TARGET: rights_t = 0x0000000000001000;
222	pub const RIGHT_PATH_OPEN: rights_t = 0x0000000000002000;
223	pub const RIGHT_FD_READDIR: rights_t = 0x0000000000004000;
224	pub const RIGHT_PATH_READLINK: rights_t = 0x0000000000008000;
225	pub const RIGHT_PATH_RENAME_SOURCE: rights_t = 0x0000000000010000;
226	pub const RIGHT_PATH_RENAME_TARGET: rights_t = 0x0000000000020000;
227	pub const RIGHT_PATH_FILESTAT_GET: rights_t = 0x0000000000040000;
228	pub const RIGHT_PATH_FILESTAT_SET_SIZE: rights_t = 0x0000000000080000;
229	pub const RIGHT_PATH_FILESTAT_SET_TIMES: rights_t = 0x0000000000100000;
230	pub const RIGHT_FD_FILESTAT_GET: rights_t = 0x0000000000200000;
231	pub const RIGHT_FD_FILESTAT_SET_SIZE: rights_t = 0x0000000000400000;
232	pub const RIGHT_FD_FILESTAT_SET_TIMES: rights_t = 0x0000000000800000;
233	pub const RIGHT_PATH_SYMLINK: rights_t = 0x0000000001000000;
234	pub const RIGHT_PATH_REMOVE_DIRECTORY: rights_t = 0x0000000002000000;
235	pub const RIGHT_PATH_UNLINK_FILE: rights_t = 0x0000000004000000;
236	pub const RIGHT_POLL_FD_READWRITE: rights_t = 0x0000000008000000;
237	pub const RIGHT_SOCK_SHUTDOWN: rights_t = 0x0000000010000000;
238
239	pub const roflags_t = u16;
240	pub const SOCK_RECV_DATA_TRUNCATED: roflags_t = 0x0001;
241
242	pub const sdflags_t = u8;
243	pub const SHUT_RD: sdflags_t = 0x01;
244	pub const SHUT_WR: sdflags_t = 0x02;
245
246	pub const siflags_t = u16;
247
248	pub const signal_t = u8;
249	pub const SIGHUP: signal_t = 1;
250	pub const SIGINT: signal_t = 2;
251	pub const SIGQUIT: signal_t = 3;
252	pub const SIGILL: signal_t = 4;
253	pub const SIGTRAP: signal_t = 5;
254	pub const SIGABRT: signal_t = 6;
255	pub const SIGBUS: signal_t = 7;
256	pub const SIGFPE: signal_t = 8;
257	pub const SIGKILL: signal_t = 9;
258	pub const SIGUSR1: signal_t = 10;
259	pub const SIGSEGV: signal_t = 11;
260	pub const SIGUSR2: signal_t = 12;
261	pub const SIGPIPE: signal_t = 13;
262	pub const SIGALRM: signal_t = 14;
263	pub const SIGTERM: signal_t = 15;
264	pub const SIGCHLD: signal_t = 16;
265	pub const SIGCONT: signal_t = 17;
266	pub const SIGSTOP: signal_t = 18;
267	pub const SIGTSTP: signal_t = 19;
268	pub const SIGTTIN: signal_t = 20;
269	pub const SIGTTOU: signal_t = 21;
270	pub const SIGURG: signal_t = 22;
271	pub const SIGXCPU: signal_t = 23;
272	pub const SIGXFSZ: signal_t = 24;
273	pub const SIGVTALRM: signal_t = 25;
274	pub const SIGPROF: signal_t = 26;
275	pub const SIGWINCH: signal_t = 27;
276	pub const SIGPOLL: signal_t = 28;
277	pub const SIGPWR: signal_t = 29;
278	pub const SIGSYS: signal_t = 30;
279
280	pub const subclockflags_t = u16;
281	pub const SUBSCRIPTION_CLOCK_ABSTIME: subclockflags_t = 0x0001;
282
283	pub const subscription_t = extern struct {
284	userdata: userdata_t,
285	@"type": eventtype_t,
286	u: extern union {
287	clock: extern struct {
288	identifier: userdata_t,
289	clock_id: clockid_t,
290	timeout: timestamp_t,
291	precision: timestamp_t,
292	flags: subclockflags_t,
293	},
294	fd_readwrite: extern struct {
295	fd: fd_t,
296	},
297	},
298	};
299
300	pub const timestamp_t = u64;
301
302	pub const userdata_t = u64;
303
304	pub const whence_t = u8;
305	pub const WHENCE_CUR: whence_t = 0;
306	pub const WHENCE_END: whence_t = 1;
307	pub const WHENCE_SET: whence_t = 2;

std/os/bits/windows.zig created+167

...	@@ -0,0 +1,167 @@
1	// The reference for these types and values is Microsoft Windows's ucrt (Universal C RunTime).
2
3	use @import("../windows/bits.zig");
4
5	pub const fd_t = HANDLE;
6	pub const pid_t = HANDLE;
7
8	pub const PATH_MAX = 260;
9
10	pub const time_t = c_longlong;
11
12	pub const timespec = extern struct {
13	tv_sec: time_t,
14	tv_nsec: c_long,
15	};
16
17	pub const sig_atomic_t = c_int;
18
19	/// maximum signal number + 1
20	pub const NSIG = 23;
21
22	// Signal types
23
24	/// interrupt
25	pub const SIGINT = 2;
26
27	/// illegal instruction - invalid function image
28	pub const SIGILL = 4;
29
30	/// floating point exception
31	pub const SIGFPE = 8;
32
33	/// segment violation
34	pub const SIGSEGV = 11;
35
36	/// Software termination signal from kill
37	pub const SIGTERM = 15;
38
39	/// Ctrl-Break sequence
40	pub const SIGBREAK = 21;
41
42	/// abnormal termination triggered by abort call
43	pub const SIGABRT = 22;
44
45	/// SIGABRT compatible with other platforms, same as SIGABRT
46	pub const SIGABRT_COMPAT = 6;
47
48	// Signal action codes
49
50	/// default signal action
51	pub const SIG_DFL = 0;
52
53	/// ignore signal
54	pub const SIG_IGN = 1;
55
56	/// return current value
57	pub const SIG_GET = 2;
58
59	/// signal gets error
60	pub const SIG_SGE = 3;
61
62	/// acknowledge
63	pub const SIG_ACK = 4;
64
65	/// Signal error value (returned by signal call on error)
66	pub const SIG_ERR = -1;
67
68	pub const SEEK_SET = 0;
69	pub const SEEK_CUR = 1;
70	pub const SEEK_END = 2;
71
72	pub const EPERM = 1;
73	pub const ENOENT = 2;
74	pub const ESRCH = 3;
75	pub const EINTR = 4;
76	pub const EIO = 5;
77	pub const ENXIO = 6;
78	pub const E2BIG = 7;
79	pub const ENOEXEC = 8;
80	pub const EBADF = 9;
81	pub const ECHILD = 10;
82	pub const EAGAIN = 11;
83	pub const ENOMEM = 12;
84	pub const EACCES = 13;
85	pub const EFAULT = 14;
86	pub const EBUSY = 16;
87	pub const EEXIST = 17;
88	pub const EXDEV = 18;
89	pub const ENODEV = 19;
90	pub const ENOTDIR = 20;
91	pub const EISDIR = 21;
92	pub const ENFILE = 23;
93	pub const EMFILE = 24;
94	pub const ENOTTY = 25;
95	pub const EFBIG = 27;
96	pub const ENOSPC = 28;
97	pub const ESPIPE = 29;
98	pub const EROFS = 30;
99	pub const EMLINK = 31;
100	pub const EPIPE = 32;
101	pub const EDOM = 33;
102	pub const EDEADLK = 36;
103	pub const ENAMETOOLONG = 38;
104	pub const ENOLCK = 39;
105	pub const ENOSYS = 40;
106	pub const ENOTEMPTY = 41;
107
108	pub const EINVAL = 22;
109	pub const ERANGE = 34;
110	pub const EILSEQ = 42;
111	pub const STRUNCATE = 80;
112
113	// Support EDEADLOCK for compatibility with older Microsoft C versions
114	pub const EDEADLOCK = EDEADLK;
115
116	// POSIX Supplement
117	pub const EADDRINUSE = 100;
118	pub const EADDRNOTAVAIL = 101;
119	pub const EAFNOSUPPORT = 102;
120	pub const EALREADY = 103;
121	pub const EBADMSG = 104;
122	pub const ECANCELED = 105;
123	pub const ECONNABORTED = 106;
124	pub const ECONNREFUSED = 107;
125	pub const ECONNRESET = 108;
126	pub const EDESTADDRREQ = 109;
127	pub const EHOSTUNREACH = 110;
128	pub const EIDRM = 111;
129	pub const EINPROGRESS = 112;
130	pub const EISCONN = 113;
131	pub const ELOOP = 114;
132	pub const EMSGSIZE = 115;
133	pub const ENETDOWN = 116;
134	pub const ENETRESET = 117;
135	pub const ENETUNREACH = 118;
136	pub const ENOBUFS = 119;
137	pub const ENODATA = 120;
138	pub const ENOLINK = 121;
139	pub const ENOMSG = 122;
140	pub const ENOPROTOOPT = 123;
141	pub const ENOSR = 124;
142	pub const ENOSTR = 125;
143	pub const ENOTCONN = 126;
144	pub const ENOTRECOVERABLE = 127;
145	pub const ENOTSOCK = 128;
146	pub const ENOTSUP = 129;
147	pub const EOPNOTSUPP = 130;
148	pub const EOTHER = 131;
149	pub const EOVERFLOW = 132;
150	pub const EOWNERDEAD = 133;
151	pub const EPROTO = 134;
152	pub const EPROTONOSUPPORT = 135;
153	pub const EPROTOTYPE = 136;
154	pub const ETIME = 137;
155	pub const ETIMEDOUT = 138;
156	pub const ETXTBSY = 139;
157	pub const EWOULDBLOCK = 140;
158	pub const EDQUOT = 10069;
159
160	pub const F_OK = 0;
161
162	// These are workarounds for "use of undeclared identifier" compile errors
163	// TODO make the compiler even more lazy. don't emit "use of undeclared identifier" errors
164	// for if branches that aren't taken.
165	pub const SIGKILL = @compileError("Windows libc does not have this");
166
167

std/os/child_process.zig deleted-819

...	@@ -1,819 +0,0 @@
1	const std = @import("../std.zig");
2	const cstr = std.cstr;
3	const unicode = std.unicode;
4	const io = std.io;
5	const os = std.os;
6	const posix = os.posix;
7	const windows = os.windows;
8	const mem = std.mem;
9	const debug = std.debug;
10	const BufMap = std.BufMap;
11	const Buffer = std.Buffer;
12	const builtin = @import("builtin");
13	const Os = builtin.Os;
14	const LinkedList = std.LinkedList;
15	const windows_util = @import("windows/util.zig");
16	const maxInt = std.math.maxInt;
17
18	const is_windows = builtin.os == Os.windows;
19
20	pub const ChildProcess = struct {
21	pub pid: if (is_windows) void else i32,
22	pub handle: if (is_windows) windows.HANDLE else void,
23	pub thread_handle: if (is_windows) windows.HANDLE else void,
24
25	pub allocator: *mem.Allocator,
26
27	pub stdin: ?os.File,
28	pub stdout: ?os.File,
29	pub stderr: ?os.File,
30
31	pub term: ?(SpawnError!Term),
32
33	pub argv: []const []const u8,
34
35	/// Leave as null to use the current env map using the supplied allocator.
36	pub env_map: ?*const BufMap,
37
38	pub stdin_behavior: StdIo,
39	pub stdout_behavior: StdIo,
40	pub stderr_behavior: StdIo,
41
42	/// Set to change the user id when spawning the child process.
43	pub uid: if (is_windows) void else ?u32,
44
45	/// Set to change the group id when spawning the child process.
46	pub gid: if (is_windows) void else ?u32,
47
48	/// Set to change the current working directory when spawning the child process.
49	pub cwd: ?[]const u8,
50
51	err_pipe: if (is_windows) void else [2]i32,
52	llnode: if (is_windows) void else LinkedList(*ChildProcess).Node,
53
54	pub const SpawnError = error{
55	ProcessFdQuotaExceeded,
56	Unexpected,
57	NotDir,
58	SystemResources,
59	FileNotFound,
60	NameTooLong,
61	SymLinkLoop,
62	FileSystem,
63	OutOfMemory,
64	AccessDenied,
65	PermissionDenied,
66	InvalidUserId,
67	ResourceLimitReached,
68	InvalidExe,
69	IsDir,
70	FileBusy,
71	};
72
73	pub const Term = union(enum) {
74	Exited: i32,
75	Signal: i32,
76	Stopped: i32,
77	Unknown: i32,
78	};
79
80	pub const StdIo = enum {
81	Inherit,
82	Ignore,
83	Pipe,
84	Close,
85	};
86
87	/// First argument in argv is the executable.
88	/// On success must call deinit.
89	pub fn init(argv: []const []const u8, allocator: mem.Allocator) !ChildProcess {
90	const child = try allocator.create(ChildProcess);
91	child.* = ChildProcess{
92	.allocator = allocator,
93	.argv = argv,
94	.pid = undefined,
95	.handle = undefined,
96	.thread_handle = undefined,
97	.err_pipe = undefined,
98	.llnode = undefined,
99	.term = null,
100	.env_map = null,
101	.cwd = null,
102	.uid = if (is_windows) {} else
103	null,
104	.gid = if (is_windows) {} else
105	null,
106	.stdin = null,
107	.stdout = null,
108	.stderr = null,
109	.stdin_behavior = StdIo.Inherit,
110	.stdout_behavior = StdIo.Inherit,
111	.stderr_behavior = StdIo.Inherit,
112	};
113	errdefer allocator.destroy(child);
114	return child;
115	}
116
117	pub fn setUserName(self: *ChildProcess, name: []const u8) !void {
118	const user_info = try os.getUserInfo(name);
119	self.uid = user_info.uid;
120	self.gid = user_info.gid;
121	}
122
123	/// On success must call `kill` or `wait`.
124	pub fn spawn(self: *ChildProcess) !void {
125	if (is_windows) {
126	return self.spawnWindows();
127	} else {
128	return self.spawnPosix();
129	}
130	}
131
132	pub fn spawnAndWait(self: *ChildProcess) !Term {
133	try self.spawn();
134	return self.wait();
135	}
136
137	/// Forcibly terminates child process and then cleans up all resources.
138	pub fn kill(self: *ChildProcess) !Term {
139	if (is_windows) {
140	return self.killWindows(1);
141	} else {
142	return self.killPosix();
143	}
144	}
145
146	pub fn killWindows(self: *ChildProcess, exit_code: windows.UINT) !Term {
147	if (self.term) \|term\| {
148	self.cleanupStreams();
149	return term;
150	}
151
152	if (!windows.TerminateProcess(self.handle, exit_code)) {
153	const err = windows.GetLastError();
154	return switch (err) {
155	else => os.unexpectedErrorWindows(err),
156	};
157	}
158	try self.waitUnwrappedWindows();
159	return self.term.?;
160	}
161
162	pub fn killPosix(self: *ChildProcess) !Term {
163	if (self.term) \|term\| {
164	self.cleanupStreams();
165	return term;
166	}
167	const ret = posix.kill(self.pid, posix.SIGTERM);
168	const err = posix.getErrno(ret);
169	if (err > 0) {
170	return switch (err) {
171	posix.EINVAL => unreachable,
172	posix.EPERM => error.PermissionDenied,
173	posix.ESRCH => error.ProcessNotFound,
174	else => os.unexpectedErrorPosix(err),
175	};
176	}
177	self.waitUnwrapped();
178	return self.term.?;
179	}
180
181	/// Blocks until child process terminates and then cleans up all resources.
182	pub fn wait(self: *ChildProcess) !Term {
183	if (is_windows) {
184	return self.waitWindows();
185	} else {
186	return self.waitPosix();
187	}
188	}
189
190	pub const ExecResult = struct {
191	term: os.ChildProcess.Term,
192	stdout: []u8,
193	stderr: []u8,
194	};
195
196	/// Spawns a child process, waits for it, collecting stdout and stderr, and then returns.
197	/// If it succeeds, the caller owns result.stdout and result.stderr memory.
198	pub fn exec(allocator: mem.Allocator, argv: []const []const u8, cwd: ?[]const u8, env_map: ?const BufMap, max_output_size: usize) !ExecResult {
199	const child = try ChildProcess.init(argv, allocator);
200	defer child.deinit();
201
202	child.stdin_behavior = ChildProcess.StdIo.Ignore;
203	child.stdout_behavior = ChildProcess.StdIo.Pipe;
204	child.stderr_behavior = ChildProcess.StdIo.Pipe;
205	child.cwd = cwd;
206	child.env_map = env_map;
207
208	try child.spawn();
209
210	var stdout = Buffer.initNull(allocator);
211	var stderr = Buffer.initNull(allocator);
212	defer Buffer.deinit(&stdout);
213	defer Buffer.deinit(&stderr);
214
215	var stdout_file_in_stream = child.stdout.?.inStream();
216	var stderr_file_in_stream = child.stderr.?.inStream();
217
218	try stdout_file_in_stream.stream.readAllBuffer(&stdout, max_output_size);
219	try stderr_file_in_stream.stream.readAllBuffer(&stderr, max_output_size);
220
221	return ExecResult{
222	.term = try child.wait(),
223	.stdout = stdout.toOwnedSlice(),
224	.stderr = stderr.toOwnedSlice(),
225	};
226	}
227
228	fn waitWindows(self: *ChildProcess) !Term {
229	if (self.term) \|term\| {
230	self.cleanupStreams();
231	return term;
232	}
233
234	try self.waitUnwrappedWindows();
235	return self.term.?;
236	}
237
238	fn waitPosix(self: *ChildProcess) !Term {
239	if (self.term) \|term\| {
240	self.cleanupStreams();
241	return term;
242	}
243
244	self.waitUnwrapped();
245	return self.term.?;
246	}
247
248	pub fn deinit(self: *ChildProcess) void {
249	self.allocator.destroy(self);
250	}
251
252	fn waitUnwrappedWindows(self: *ChildProcess) !void {
253	const result = os.windowsWaitSingle(self.handle, windows.INFINITE);
254
255	self.term = (SpawnError!Term)(x: {
256	var exit_code: windows.DWORD = undefined;
257	if (windows.GetExitCodeProcess(self.handle, &exit_code) == 0) {
258	break :x Term{ .Unknown = 0 };
259	} else {
260	break :x Term{ .Exited = @bitCast(i32, exit_code) };
261	}
262	});
263
264	os.close(self.handle);
265	os.close(self.thread_handle);
266	self.cleanupStreams();
267	return result;
268	}
269
270	fn waitUnwrapped(self: *ChildProcess) void {
271	var status: i32 = undefined;
272	while (true) {
273	const err = posix.getErrno(posix.waitpid(self.pid, &status, 0));
274	if (err > 0) {
275	switch (err) {
276	posix.EINTR => continue,
277	else => unreachable,
278	}
279	}
280	self.cleanupStreams();
281	self.handleWaitResult(status);
282	return;
283	}
284	}
285
286	fn handleWaitResult(self: *ChildProcess, status: i32) void {
287	self.term = self.cleanupAfterWait(status);
288	}
289
290	fn cleanupStreams(self: *ChildProcess) void {
291	if (self.stdin) \|*stdin\| {
292	stdin.close();
293	self.stdin = null;
294	}
295	if (self.stdout) \|*stdout\| {
296	stdout.close();
297	self.stdout = null;
298	}
299	if (self.stderr) \|*stderr\| {
300	stderr.close();
301	self.stderr = null;
302	}
303	}
304
305	fn cleanupAfterWait(self: *ChildProcess, status: i32) !Term {
306	defer {
307	os.close(self.err_pipe[0]);
308	os.close(self.err_pipe[1]);
309	}
310
311	// Write maxInt(ErrInt) to the write end of the err_pipe. This is after
312	// waitpid, so this write is guaranteed to be after the child
313	// pid potentially wrote an error. This way we can do a blocking
314	// read on the error pipe and either get maxInt(ErrInt) (no error) or
315	// an error code.
316	try writeIntFd(self.err_pipe[1], maxInt(ErrInt));
317	const err_int = try readIntFd(self.err_pipe[0]);
318	// Here we potentially return the fork child's error
319	// from the parent pid.
320	if (err_int != maxInt(ErrInt)) {
321	return @errSetCast(SpawnError, @intToError(err_int));
322	}
323
324	return statusToTerm(status);
325	}
326
327	fn statusToTerm(status: i32) Term {
328	return if (posix.WIFEXITED(status))
329	Term{ .Exited = posix.WEXITSTATUS(status) }
330	else if (posix.WIFSIGNALED(status))
331	Term{ .Signal = posix.WTERMSIG(status) }
332	else if (posix.WIFSTOPPED(status))
333	Term{ .Stopped = posix.WSTOPSIG(status) }
334	else
335	Term{ .Unknown = status };
336	}
337
338	fn spawnPosix(self: *ChildProcess) !void {
339	const stdin_pipe = if (self.stdin_behavior == StdIo.Pipe) try makePipe() else undefined;
340	errdefer if (self.stdin_behavior == StdIo.Pipe) {
341	destroyPipe(stdin_pipe);
342	};
343
344	const stdout_pipe = if (self.stdout_behavior == StdIo.Pipe) try makePipe() else undefined;
345	errdefer if (self.stdout_behavior == StdIo.Pipe) {
346	destroyPipe(stdout_pipe);
347	};
348
349	const stderr_pipe = if (self.stderr_behavior == StdIo.Pipe) try makePipe() else undefined;
350	errdefer if (self.stderr_behavior == StdIo.Pipe) {
351	destroyPipe(stderr_pipe);
352	};
353
354	const any_ignore = (self.stdin_behavior == StdIo.Ignore or self.stdout_behavior == StdIo.Ignore or self.stderr_behavior == StdIo.Ignore);
355	const dev_null_fd = if (any_ignore) try os.posixOpenC(c"/dev/null", posix.O_RDWR, 0) else undefined;
356	defer {
357	if (any_ignore) os.close(dev_null_fd);
358	}
359
360	var env_map_owned: BufMap = undefined;
361	var we_own_env_map: bool = undefined;
362	const env_map = if (self.env_map) \|env_map\| x: {
363	we_own_env_map = false;
364	break :x env_map;
365	} else x: {
366	we_own_env_map = true;
367	env_map_owned = try os.getEnvMap(self.allocator);
368	break :x &env_map_owned;
369	};
370	defer {
371	if (we_own_env_map) env_map_owned.deinit();
372	}
373
374	// This pipe is used to communicate errors between the time of fork
375	// and execve from the child process to the parent process.
376	const err_pipe = try makePipe();
377	errdefer destroyPipe(err_pipe);
378
379	const pid_result = posix.fork();
380	const pid_err = posix.getErrno(pid_result);
381	if (pid_err > 0) {
382	return switch (pid_err) {
383	posix.EAGAIN, posix.ENOMEM, posix.ENOSYS => error.SystemResources,
384	else => os.unexpectedErrorPosix(pid_err),
385	};
386	}
387	if (pid_result == 0) {
388	// we are the child
389	setUpChildIo(self.stdin_behavior, stdin_pipe[0], posix.STDIN_FILENO, dev_null_fd) catch \|err\| forkChildErrReport(err_pipe[1], err);
390	setUpChildIo(self.stdout_behavior, stdout_pipe[1], posix.STDOUT_FILENO, dev_null_fd) catch \|err\| forkChildErrReport(err_pipe[1], err);
391	setUpChildIo(self.stderr_behavior, stderr_pipe[1], posix.STDERR_FILENO, dev_null_fd) catch \|err\| forkChildErrReport(err_pipe[1], err);
392
393	if (self.stdin_behavior == StdIo.Pipe) {
394	os.close(stdin_pipe[0]);
395	os.close(stdin_pipe[1]);
396	}
397	if (self.stdout_behavior == StdIo.Pipe) {
398	os.close(stdout_pipe[0]);
399	os.close(stdout_pipe[1]);
400	}
401	if (self.stderr_behavior == StdIo.Pipe) {
402	os.close(stderr_pipe[0]);
403	os.close(stderr_pipe[1]);
404	}
405
406	if (self.cwd) \|cwd\| {
407	os.changeCurDir(cwd) catch \|err\| forkChildErrReport(err_pipe[1], err);
408	}
409
410	if (self.gid) \|gid\| {
411	os.posix_setregid(gid, gid) catch \|err\| forkChildErrReport(err_pipe[1], err);
412	}
413
414	if (self.uid) \|uid\| {
415	os.posix_setreuid(uid, uid) catch \|err\| forkChildErrReport(err_pipe[1], err);
416	}
417
418	os.posixExecve(self.argv, env_map, self.allocator) catch \|err\| forkChildErrReport(err_pipe[1], err);
419	}
420
421	// we are the parent
422	const pid = @intCast(i32, pid_result);
423	if (self.stdin_behavior == StdIo.Pipe) {
424	self.stdin = os.File.openHandle(stdin_pipe[1]);
425	} else {
426	self.stdin = null;
427	}
428	if (self.stdout_behavior == StdIo.Pipe) {
429	self.stdout = os.File.openHandle(stdout_pipe[0]);
430	} else {
431	self.stdout = null;
432	}
433	if (self.stderr_behavior == StdIo.Pipe) {
434	self.stderr = os.File.openHandle(stderr_pipe[0]);
435	} else {
436	self.stderr = null;
437	}
438
439	self.pid = pid;
440	self.err_pipe = err_pipe;
441	self.llnode = LinkedList(*ChildProcess).Node.init(self);
442	self.term = null;
443
444	if (self.stdin_behavior == StdIo.Pipe) {
445	os.close(stdin_pipe[0]);
446	}
447	if (self.stdout_behavior == StdIo.Pipe) {
448	os.close(stdout_pipe[1]);
449	}
450	if (self.stderr_behavior == StdIo.Pipe) {
451	os.close(stderr_pipe[1]);
452	}
453	}
454
455	fn spawnWindows(self: *ChildProcess) !void {
456	const saAttr = windows.SECURITY_ATTRIBUTES{
457	.nLength = @sizeOf(windows.SECURITY_ATTRIBUTES),
458	.bInheritHandle = windows.TRUE,
459	.lpSecurityDescriptor = null,
460	};
461
462	const any_ignore = (self.stdin_behavior == StdIo.Ignore or self.stdout_behavior == StdIo.Ignore or self.stderr_behavior == StdIo.Ignore);
463
464	const nul_handle = if (any_ignore) blk: {
465	break :blk try os.windowsOpen("NUL", windows.GENERIC_READ, windows.FILE_SHARE_READ, windows.OPEN_EXISTING, windows.FILE_ATTRIBUTE_NORMAL);
466	} else blk: {
467	break :blk undefined;
468	};
469	defer {
470	if (any_ignore) os.close(nul_handle);
471	}
472	if (any_ignore) {
473	try windowsSetHandleInfo(nul_handle, windows.HANDLE_FLAG_INHERIT, 0);
474	}
475
476	var g_hChildStd_IN_Rd: ?windows.HANDLE = null;
477	var g_hChildStd_IN_Wr: ?windows.HANDLE = null;
478	switch (self.stdin_behavior) {
479	StdIo.Pipe => {
480	try windowsMakePipeIn(&g_hChildStd_IN_Rd, &g_hChildStd_IN_Wr, &saAttr);
481	},
482	StdIo.Ignore => {
483	g_hChildStd_IN_Rd = nul_handle;
484	},
485	StdIo.Inherit => {
486	g_hChildStd_IN_Rd = windows.GetStdHandle(windows.STD_INPUT_HANDLE);
487	},
488	StdIo.Close => {
489	g_hChildStd_IN_Rd = null;
490	},
491	}
492	errdefer if (self.stdin_behavior == StdIo.Pipe) {
493	windowsDestroyPipe(g_hChildStd_IN_Rd, g_hChildStd_IN_Wr);
494	};
495
496	var g_hChildStd_OUT_Rd: ?windows.HANDLE = null;
497	var g_hChildStd_OUT_Wr: ?windows.HANDLE = null;
498	switch (self.stdout_behavior) {
499	StdIo.Pipe => {
500	try windowsMakePipeOut(&g_hChildStd_OUT_Rd, &g_hChildStd_OUT_Wr, &saAttr);
501	},
502	StdIo.Ignore => {
503	g_hChildStd_OUT_Wr = nul_handle;
504	},
505	StdIo.Inherit => {
506	g_hChildStd_OUT_Wr = windows.GetStdHandle(windows.STD_OUTPUT_HANDLE);
507	},
508	StdIo.Close => {
509	g_hChildStd_OUT_Wr = null;
510	},
511	}
512	errdefer if (self.stdin_behavior == StdIo.Pipe) {
513	windowsDestroyPipe(g_hChildStd_OUT_Rd, g_hChildStd_OUT_Wr);
514	};
515
516	var g_hChildStd_ERR_Rd: ?windows.HANDLE = null;
517	var g_hChildStd_ERR_Wr: ?windows.HANDLE = null;
518	switch (self.stderr_behavior) {
519	StdIo.Pipe => {
520	try windowsMakePipeOut(&g_hChildStd_ERR_Rd, &g_hChildStd_ERR_Wr, &saAttr);
521	},
522	StdIo.Ignore => {
523	g_hChildStd_ERR_Wr = nul_handle;
524	},
525	StdIo.Inherit => {
526	g_hChildStd_ERR_Wr = windows.GetStdHandle(windows.STD_ERROR_HANDLE);
527	},
528	StdIo.Close => {
529	g_hChildStd_ERR_Wr = null;
530	},
531	}
532	errdefer if (self.stdin_behavior == StdIo.Pipe) {
533	windowsDestroyPipe(g_hChildStd_ERR_Rd, g_hChildStd_ERR_Wr);
534	};
535
536	const cmd_line = try windowsCreateCommandLine(self.allocator, self.argv);
537	defer self.allocator.free(cmd_line);
538
539	var siStartInfo = windows.STARTUPINFOW{
540	.cb = @sizeOf(windows.STARTUPINFOW),
541	.hStdError = g_hChildStd_ERR_Wr,
542	.hStdOutput = g_hChildStd_OUT_Wr,
543	.hStdInput = g_hChildStd_IN_Rd,
544	.dwFlags = windows.STARTF_USESTDHANDLES,
545
546	.lpReserved = null,
547	.lpDesktop = null,
548	.lpTitle = null,
549	.dwX = 0,
550	.dwY = 0,
551	.dwXSize = 0,
552	.dwYSize = 0,
553	.dwXCountChars = 0,
554	.dwYCountChars = 0,
555	.dwFillAttribute = 0,
556	.wShowWindow = 0,
557	.cbReserved2 = 0,
558	.lpReserved2 = null,
559	};
560	var piProcInfo: windows.PROCESS_INFORMATION = undefined;
561
562	const cwd_slice = if (self.cwd) \|cwd\| try cstr.addNullByte(self.allocator, cwd) else null;
563	defer if (cwd_slice) \|cwd\| self.allocator.free(cwd);
564	const cwd_w = if (cwd_slice) \|cwd\| try unicode.utf8ToUtf16LeWithNull(self.allocator, cwd) else null;
565	defer if (cwd_w) \|cwd\| self.allocator.free(cwd);
566	const cwd_w_ptr = if (cwd_w) \|cwd\| cwd.ptr else null;
567
568	const maybe_envp_buf = if (self.env_map) \|env_map\| try os.createWindowsEnvBlock(self.allocator, env_map) else null;
569	defer if (maybe_envp_buf) \|envp_buf\| self.allocator.free(envp_buf);
570	const envp_ptr = if (maybe_envp_buf) \|envp_buf\| envp_buf.ptr else null;
571
572	// the cwd set in ChildProcess is in effect when choosing the executable path
573	// to match posix semantics
574	const app_name = x: {
575	if (self.cwd) \|cwd\| {
576	const resolved = try os.path.resolve(self.allocator, [][]const u8{ cwd, self.argv[0] });
577	defer self.allocator.free(resolved);
578	break :x try cstr.addNullByte(self.allocator, resolved);
579	} else {
580	break :x try cstr.addNullByte(self.allocator, self.argv[0]);
581	}
582	};
583	defer self.allocator.free(app_name);
584
585	const app_name_w = try unicode.utf8ToUtf16LeWithNull(self.allocator, app_name);
586	defer self.allocator.free(app_name_w);
587
588	const cmd_line_w = try unicode.utf8ToUtf16LeWithNull(self.allocator, cmd_line);
589	defer self.allocator.free(cmd_line_w);
590
591	windowsCreateProcess(app_name_w.ptr, cmd_line_w.ptr, envp_ptr, cwd_w_ptr, &siStartInfo, &piProcInfo) catch \|no_path_err\| {
592	if (no_path_err != error.FileNotFound) return no_path_err;
593
594	const PATH = try os.getEnvVarOwned(self.allocator, "PATH");
595	defer self.allocator.free(PATH);
596
597	var it = mem.tokenize(PATH, ";");
598	while (it.next()) \|search_path\| {
599	const joined_path = try os.path.join(self.allocator, [][]const u8{ search_path, app_name });
600	defer self.allocator.free(joined_path);
601
602	const joined_path_w = try unicode.utf8ToUtf16LeWithNull(self.allocator, joined_path);
603	defer self.allocator.free(joined_path_w);
604
605	if (windowsCreateProcess(joined_path_w.ptr, cmd_line_w.ptr, envp_ptr, cwd_w_ptr, &siStartInfo, &piProcInfo)) \|_\| {
606	break;
607	} else \|err\| if (err == error.FileNotFound) {
608	continue;
609	} else {
610	return err;
611	}
612	} else {
613	// Every other error would have been returned earlier.
614	return error.FileNotFound;
615	}
616	};
617
618	if (g_hChildStd_IN_Wr) \|h\| {
619	self.stdin = os.File.openHandle(h);
620	} else {
621	self.stdin = null;
622	}
623	if (g_hChildStd_OUT_Rd) \|h\| {
624	self.stdout = os.File.openHandle(h);
625	} else {
626	self.stdout = null;
627	}
628	if (g_hChildStd_ERR_Rd) \|h\| {
629	self.stderr = os.File.openHandle(h);
630	} else {
631	self.stderr = null;
632	}
633
634	self.handle = piProcInfo.hProcess;
635	self.thread_handle = piProcInfo.hThread;
636	self.term = null;
637
638	if (self.stdin_behavior == StdIo.Pipe) {
639	os.close(g_hChildStd_IN_Rd.?);
640	}
641	if (self.stderr_behavior == StdIo.Pipe) {
642	os.close(g_hChildStd_ERR_Wr.?);
643	}
644	if (self.stdout_behavior == StdIo.Pipe) {
645	os.close(g_hChildStd_OUT_Wr.?);
646	}
647	}
648
649	fn setUpChildIo(stdio: StdIo, pipe_fd: i32, std_fileno: i32, dev_null_fd: i32) !void {
650	switch (stdio) {
651	StdIo.Pipe => try os.posixDup2(pipe_fd, std_fileno),
652	StdIo.Close => os.close(std_fileno),
653	StdIo.Inherit => {},
654	StdIo.Ignore => try os.posixDup2(dev_null_fd, std_fileno),
655	}
656	}
657	};
658
659	fn windowsCreateProcess(app_name: []u16, cmd_line: []u16, envp_ptr: ?[]u16, cwd_ptr: ?[]u16, lpStartupInfo: windows.STARTUPINFOW, lpProcessInformation: windows.PROCESS_INFORMATION) !void {
660	// TODO the docs for environment pointer say:
661	// > A pointer to the environment block for the new process. If this parameter
662	// > is NULL, the new process uses the environment of the calling process.
663	// > ...
664	// > An environment block can contain either Unicode or ANSI characters. If
665	// > the environment block pointed to by lpEnvironment contains Unicode
666	// > characters, be sure that dwCreationFlags includes CREATE_UNICODE_ENVIRONMENT.
667	// > If this parameter is NULL and the environment block of the parent process
668	// > contains Unicode characters, you must also ensure that dwCreationFlags
669	// > includes CREATE_UNICODE_ENVIRONMENT.
670	// This seems to imply that we have to somehow know whether our process parent passed
671	// CREATE_UNICODE_ENVIRONMENT if we want to pass NULL for the environment parameter.
672	// Since we do not know this information that would imply that we must not pass NULL
673	// for the parameter.
674	// However this would imply that programs compiled with -DUNICODE could not pass
675	// environment variables to programs that were not, which seems unlikely.
676	// More investigation is needed.
677	if (windows.CreateProcessW(
678	app_name,
679	cmd_line,
680	null,
681	null,
682	windows.TRUE,
683	windows.CREATE_UNICODE_ENVIRONMENT,
684	@ptrCast(?*c_void, envp_ptr),
685	cwd_ptr,
686	lpStartupInfo,
687	lpProcessInformation,
688	) == 0) {
689	const err = windows.GetLastError();
690	switch (err) {
691	windows.ERROR.FILE_NOT_FOUND => return error.FileNotFound,
692	windows.ERROR.PATH_NOT_FOUND => return error.FileNotFound,
693	windows.ERROR.INVALID_PARAMETER => unreachable,
694	windows.ERROR.INVALID_NAME => return error.InvalidName,
695	else => return os.unexpectedErrorWindows(err),
696	}
697	}
698	}
699
700	/// Caller must dealloc.
701	/// Guarantees a null byte at result[result.len].
702	fn windowsCreateCommandLine(allocator: *mem.Allocator, argv: []const []const u8) ![]u8 {
703	var buf = try Buffer.initSize(allocator, 0);
704	defer buf.deinit();
705
706	var buf_stream = &io.BufferOutStream.init(&buf).stream;
707
708	for (argv) \|arg, arg_i\| {
709	if (arg_i != 0) try buf.appendByte(' ');
710	if (mem.indexOfAny(u8, arg, " \t\n\"") == null) {
711	try buf.append(arg);
712	continue;
713	}
714	try buf.appendByte('"');
715	var backslash_count: usize = 0;
716	for (arg) \|byte\| {
717	switch (byte) {
718	'\\' => backslash_count += 1,
719	'"' => {
720	try buf_stream.writeByteNTimes('\\', backslash_count * 2 + 1);
721	try buf.appendByte('"');
722	backslash_count = 0;
723	},
724	else => {
725	try buf_stream.writeByteNTimes('\\', backslash_count);
726	try buf.appendByte(byte);
727	backslash_count = 0;
728	},
729	}
730	}
731	try buf_stream.writeByteNTimes('\\', backslash_count * 2);
732	try buf.appendByte('"');
733	}
734
735	return buf.toOwnedSlice();
736	}
737
738	fn windowsDestroyPipe(rd: ?windows.HANDLE, wr: ?windows.HANDLE) void {
739	if (rd) \|h\| os.close(h);
740	if (wr) \|h\| os.close(h);
741	}
742
743	// TODO: workaround for bug where the `const` from `&const` is dropped when the type is
744	// a namespace field lookup
745	const SECURITY_ATTRIBUTES = windows.SECURITY_ATTRIBUTES;
746
747	fn windowsMakePipe(rd: windows.HANDLE, wr: windows.HANDLE, sattr: *const SECURITY_ATTRIBUTES) !void {
748	if (windows.CreatePipe(rd, wr, sattr, 0) == 0) {
749	const err = windows.GetLastError();
750	return switch (err) {
751	else => os.unexpectedErrorWindows(err),
752	};
753	}
754	}
755
756	fn windowsSetHandleInfo(h: windows.HANDLE, mask: windows.DWORD, flags: windows.DWORD) !void {
757	if (windows.SetHandleInformation(h, mask, flags) == 0) {
758	const err = windows.GetLastError();
759	return switch (err) {
760	else => os.unexpectedErrorWindows(err),
761	};
762	}
763	}
764
765	fn windowsMakePipeIn(rd: ?windows.HANDLE, wr: ?windows.HANDLE, sattr: *const SECURITY_ATTRIBUTES) !void {
766	var rd_h: windows.HANDLE = undefined;
767	var wr_h: windows.HANDLE = undefined;
768	try windowsMakePipe(&rd_h, &wr_h, sattr);
769	errdefer windowsDestroyPipe(rd_h, wr_h);
770	try windowsSetHandleInfo(wr_h, windows.HANDLE_FLAG_INHERIT, 0);
771	rd.* = rd_h;
772	wr.* = wr_h;
773	}
774
775	fn windowsMakePipeOut(rd: ?windows.HANDLE, wr: ?windows.HANDLE, sattr: *const SECURITY_ATTRIBUTES) !void {
776	var rd_h: windows.HANDLE = undefined;
777	var wr_h: windows.HANDLE = undefined;
778	try windowsMakePipe(&rd_h, &wr_h, sattr);
779	errdefer windowsDestroyPipe(rd_h, wr_h);
780	try windowsSetHandleInfo(rd_h, windows.HANDLE_FLAG_INHERIT, 0);
781	rd.* = rd_h;
782	wr.* = wr_h;
783	}
784
785	fn makePipe() ![2]i32 {
786	var fds: [2]i32 = undefined;
787	const err = posix.getErrno(posix.pipe(&fds));
788	if (err > 0) {
789	return switch (err) {
790	posix.EMFILE, posix.ENFILE => error.SystemResources,
791	else => os.unexpectedErrorPosix(err),
792	};
793	}
794	return fds;
795	}
796
797	fn destroyPipe(pipe: [2]i32) void {
798	os.close(pipe[0]);
799	os.close(pipe[1]);
800	}
801
802	// Child of fork calls this to report an error to the fork parent.
803	// Then the child exits.
804	fn forkChildErrReport(fd: i32, err: ChildProcess.SpawnError) noreturn {
805	writeIntFd(fd, ErrInt(@errorToInt(err))) catch {};
806	posix.exit(1);
807	}
808
809	const ErrInt = @IntType(false, @sizeOf(anyerror) * 8);
810
811	fn writeIntFd(fd: i32, value: ErrInt) !void {
812	const stream = &os.File.openHandle(fd).outStream().stream;
813	stream.writeIntNative(ErrInt, value) catch return error.SystemResources;
814	}
815
816	fn readIntFd(fd: i32) !ErrInt {
817	const stream = &os.File.openHandle(fd).inStream().stream;
818	return stream.readIntNative(ErrInt) catch return error.SystemResources;
819	}

std/os/darwin.zig+5-883

...	@@ -1,885 +1,7 @@	...	@@ -1,885 +1,7 @@
		1	const builtin = @import("builtin");
1	const std = @import("../std.zig");	2	const std = @import("../std.zig");
2	const c = std.c;	3	pub const is_the_target = switch (builtin.os) {
3	const assert = std.debug.assert;	4	.macosx, .tvos, .watchos, .ios => true,
4	const maxInt = std.math.maxInt;	5	else => false,
5
6	pub use @import("darwin/errno.zig");
7
8	pub const PATH_MAX = 1024;
9
10	pub const STDIN_FILENO = 0;
11	pub const STDOUT_FILENO = 1;
12	pub const STDERR_FILENO = 2;
13
14	/// [MC2] no permissions
15	pub const PROT_NONE = 0x00;
16
17	/// [MC2] pages can be read
18	pub const PROT_READ = 0x01;
19
20	/// [MC2] pages can be written
21	pub const PROT_WRITE = 0x02;
22
23	/// [MC2] pages can be executed
24	pub const PROT_EXEC = 0x04;
25
26	/// allocated from memory, swap space
27	pub const MAP_ANONYMOUS = 0x1000;
28
29	/// map from file (default)
30	pub const MAP_FILE = 0x0000;
31
32	/// interpret addr exactly
33	pub const MAP_FIXED = 0x0010;
34
35	/// region may contain semaphores
36	pub const MAP_HASSEMAPHORE = 0x0200;
37
38	/// changes are private
39	pub const MAP_PRIVATE = 0x0002;
40
41	/// share changes
42	pub const MAP_SHARED = 0x0001;
43
44	/// don't cache pages for this mapping
45	pub const MAP_NOCACHE = 0x0400;
46
47	/// don't reserve needed swap area
48	pub const MAP_NORESERVE = 0x0040;
49	pub const MAP_FAILED = maxInt(usize);
50
51	/// [XSI] no hang in wait/no child to reap
52	pub const WNOHANG = 0x00000001;
53
54	/// [XSI] notify on stop, untraced child
55	pub const WUNTRACED = 0x00000002;
56
57	/// take signal on signal stack
58	pub const SA_ONSTACK = 0x0001;
59
60	/// restart system on signal return
61	pub const SA_RESTART = 0x0002;
62
63	/// reset to SIG_DFL when taking signal
64	pub const SA_RESETHAND = 0x0004;
65
66	/// do not generate SIGCHLD on child stop
67	pub const SA_NOCLDSTOP = 0x0008;
68
69	/// don't mask the signal we're delivering
70	pub const SA_NODEFER = 0x0010;
71
72	/// don't keep zombies around
73	pub const SA_NOCLDWAIT = 0x0020;
74
75	/// signal handler with SA_SIGINFO args
76	pub const SA_SIGINFO = 0x0040;
77
78	/// do not bounce off kernel's sigtramp
79	pub const SA_USERTRAMP = 0x0100;
80
81	/// signal handler with SA_SIGINFO args with 64bit regs information
82	pub const SA_64REGSET = 0x0200;
83
84	pub const O_LARGEFILE = 0x0000;
85	pub const O_PATH = 0x0000;
86
87	pub const F_OK = 0;
88	pub const X_OK = 1;
89	pub const W_OK = 2;
90	pub const R_OK = 4;
91
92	/// open for reading only
93	pub const O_RDONLY = 0x0000;
94
95	/// open for writing only
96	pub const O_WRONLY = 0x0001;
97
98	/// open for reading and writing
99	pub const O_RDWR = 0x0002;
100
101	/// do not block on open or for data to become available
102	pub const O_NONBLOCK = 0x0004;
103
104	/// append on each write
105	pub const O_APPEND = 0x0008;
106
107	/// create file if it does not exist
108	pub const O_CREAT = 0x0200;
109
110	/// truncate size to 0
111	pub const O_TRUNC = 0x0400;
112
113	/// error if O_CREAT and the file exists
114	pub const O_EXCL = 0x0800;
115
116	/// atomically obtain a shared lock
117	pub const O_SHLOCK = 0x0010;
118
119	/// atomically obtain an exclusive lock
120	pub const O_EXLOCK = 0x0020;
121
122	/// do not follow symlinks
123	pub const O_NOFOLLOW = 0x0100;
124
125	/// allow open of symlinks
126	pub const O_SYMLINK = 0x200000;
127
128	/// descriptor requested for event notifications only
129	pub const O_EVTONLY = 0x8000;
130
131	/// mark as close-on-exec
132	pub const O_CLOEXEC = 0x1000000;
133
134	pub const O_ACCMODE = 3;
135	pub const O_ALERT = 536870912;
136	pub const O_ASYNC = 64;
137	pub const O_DIRECTORY = 1048576;
138	pub const O_DP_GETRAWENCRYPTED = 1;
139	pub const O_DP_GETRAWUNENCRYPTED = 2;
140	pub const O_DSYNC = 4194304;
141	pub const O_FSYNC = O_SYNC;
142	pub const O_NOCTTY = 131072;
143	pub const O_POPUP = 2147483648;
144	pub const O_SYNC = 128;
145
146	pub const SEEK_SET = 0x0;
147	pub const SEEK_CUR = 0x1;
148	pub const SEEK_END = 0x2;
149
150	pub const DT_UNKNOWN = 0;
151	pub const DT_FIFO = 1;
152	pub const DT_CHR = 2;
153	pub const DT_DIR = 4;
154	pub const DT_BLK = 6;
155	pub const DT_REG = 8;
156	pub const DT_LNK = 10;
157	pub const DT_SOCK = 12;
158	pub const DT_WHT = 14;
159
160	/// block specified signal set
161	pub const SIG_BLOCK = 1;
162
163	/// unblock specified signal set
164	pub const SIG_UNBLOCK = 2;
165
166	/// set specified signal set
167	pub const SIG_SETMASK = 3;
168
169	/// hangup
170	pub const SIGHUP = 1;
171
172	/// interrupt
173	pub const SIGINT = 2;
174
175	/// quit
176	pub const SIGQUIT = 3;
177
178	/// illegal instruction (not reset when caught)
179	pub const SIGILL = 4;
180
181	/// trace trap (not reset when caught)
182	pub const SIGTRAP = 5;
183
184	/// abort()
185	pub const SIGABRT = 6;
186
187	/// pollable event ([XSR] generated, not supported)
188	pub const SIGPOLL = 7;
189
190	/// compatibility
191	pub const SIGIOT = SIGABRT;
192
193	/// EMT instruction
194	pub const SIGEMT = 7;
195
196	/// floating point exception
197	pub const SIGFPE = 8;
198
199	/// kill (cannot be caught or ignored)
200	pub const SIGKILL = 9;
201
202	/// bus error
203	pub const SIGBUS = 10;
204
205	/// segmentation violation
206	pub const SIGSEGV = 11;
207
208	/// bad argument to system call
209	pub const SIGSYS = 12;
210
211	/// write on a pipe with no one to read it
212	pub const SIGPIPE = 13;
213
214	/// alarm clock
215	pub const SIGALRM = 14;
216
217	/// software termination signal from kill
218	pub const SIGTERM = 15;
219
220	/// urgent condition on IO channel
221	pub const SIGURG = 16;
222
223	/// sendable stop signal not from tty
224	pub const SIGSTOP = 17;
225
226	/// stop signal from tty
227	pub const SIGTSTP = 18;
228
229	/// continue a stopped process
230	pub const SIGCONT = 19;
231
232	/// to parent on child stop or exit
233	pub const SIGCHLD = 20;
234
235	/// to readers pgrp upon background tty read
236	pub const SIGTTIN = 21;
237
238	/// like TTIN for output if (tp->t_local&LTOSTOP)
239	pub const SIGTTOU = 22;
240
241	/// input/output possible signal
242	pub const SIGIO = 23;
243
244	/// exceeded CPU time limit
245	pub const SIGXCPU = 24;
246
247	/// exceeded file size limit
248	pub const SIGXFSZ = 25;
249
250	/// virtual time alarm
251	pub const SIGVTALRM = 26;
252
253	/// profiling time alarm
254	pub const SIGPROF = 27;
255
256	/// window size changes
257	pub const SIGWINCH = 28;
258
259	/// information request
260	pub const SIGINFO = 29;
261
262	/// user defined signal 1
263	pub const SIGUSR1 = 30;
264
265	/// user defined signal 2
266	pub const SIGUSR2 = 31;
267
268	/// no flag value
269	pub const KEVENT_FLAG_NONE = 0x000;
270
271	/// immediate timeout
272	pub const KEVENT_FLAG_IMMEDIATE = 0x001;
273
274	/// output events only include change
275	pub const KEVENT_FLAG_ERROR_EVENTS = 0x002;
276
277	/// add event to kq (implies enable)
278	pub const EV_ADD = 0x0001;
279
280	/// delete event from kq
281	pub const EV_DELETE = 0x0002;
282
283	/// enable event
284	pub const EV_ENABLE = 0x0004;
285
286	/// disable event (not reported)
287	pub const EV_DISABLE = 0x0008;
288
289	/// only report one occurrence
290	pub const EV_ONESHOT = 0x0010;
291
292	/// clear event state after reporting
293	pub const EV_CLEAR = 0x0020;
294
295	/// force immediate event output
296	/// ... with or without EV_ERROR
297	/// ... use KEVENT_FLAG_ERROR_EVENTS
298	/// on syscalls supporting flags
299	pub const EV_RECEIPT = 0x0040;
300
301	/// disable event after reporting
302	pub const EV_DISPATCH = 0x0080;
303
304	/// unique kevent per udata value
305	pub const EV_UDATA_SPECIFIC = 0x0100;
306
307	/// ... in combination with EV_DELETE
308	/// will defer delete until udata-specific
309	/// event enabled. EINPROGRESS will be
310	/// returned to indicate the deferral
311	pub const EV_DISPATCH2 = EV_DISPATCH \| EV_UDATA_SPECIFIC;
312
313	/// report that source has vanished
314	/// ... only valid with EV_DISPATCH2
315	pub const EV_VANISHED = 0x0200;
316
317	/// reserved by system
318	pub const EV_SYSFLAGS = 0xF000;
319
320	/// filter-specific flag
321	pub const EV_FLAG0 = 0x1000;
322
323	/// filter-specific flag
324	pub const EV_FLAG1 = 0x2000;
325
326	/// EOF detected
327	pub const EV_EOF = 0x8000;
328
329	/// error, data contains errno
330	pub const EV_ERROR = 0x4000;
331
332	pub const EV_POLL = EV_FLAG0;
333	pub const EV_OOBAND = EV_FLAG1;
334
335	pub const EVFILT_READ = -1;
336	pub const EVFILT_WRITE = -2;
337
338	/// attached to aio requests
339	pub const EVFILT_AIO = -3;
340
341	/// attached to vnodes
342	pub const EVFILT_VNODE = -4;
343
344	/// attached to struct proc
345	pub const EVFILT_PROC = -5;
346
347	/// attached to struct proc
348	pub const EVFILT_SIGNAL = -6;
349
350	/// timers
351	pub const EVFILT_TIMER = -7;
352
353	/// Mach portsets
354	pub const EVFILT_MACHPORT = -8;
355
356	/// Filesystem events
357	pub const EVFILT_FS = -9;
358
359	/// User events
360	pub const EVFILT_USER = -10;
361
362	/// Virtual memory events
363	pub const EVFILT_VM = -12;
364
365	/// Exception events
366	pub const EVFILT_EXCEPT = -15;
367
368	pub const EVFILT_SYSCOUNT = 17;
369
370	/// On input, NOTE_TRIGGER causes the event to be triggered for output.
371	pub const NOTE_TRIGGER = 0x01000000;
372
373	/// ignore input fflags
374	pub const NOTE_FFNOP = 0x00000000;
375
376	/// and fflags
377	pub const NOTE_FFAND = 0x40000000;
378
379	/// or fflags
380	pub const NOTE_FFOR = 0x80000000;
381
382	/// copy fflags
383	pub const NOTE_FFCOPY = 0xc0000000;
384
385	/// mask for operations
386	pub const NOTE_FFCTRLMASK = 0xc0000000;
387	pub const NOTE_FFLAGSMASK = 0x00ffffff;
388
389	/// low water mark
390	pub const NOTE_LOWAT = 0x00000001;
391
392	/// OOB data
393	pub const NOTE_OOB = 0x00000002;
394
395	/// vnode was removed
396	pub const NOTE_DELETE = 0x00000001;
397
398	/// data contents changed
399	pub const NOTE_WRITE = 0x00000002;
400
401	/// size increased
402	pub const NOTE_EXTEND = 0x00000004;
403
404	/// attributes changed
405	pub const NOTE_ATTRIB = 0x00000008;
406
407	/// link count changed
408	pub const NOTE_LINK = 0x00000010;
409
410	/// vnode was renamed
411	pub const NOTE_RENAME = 0x00000020;
412
413	/// vnode access was revoked
414	pub const NOTE_REVOKE = 0x00000040;
415
416	/// No specific vnode event: to test for EVFILT_READ activation
417	pub const NOTE_NONE = 0x00000080;
418
419	/// vnode was unlocked by flock(2)
420	pub const NOTE_FUNLOCK = 0x00000100;
421
422	/// process exited
423	pub const NOTE_EXIT = 0x80000000;
424
425	/// process forked
426	pub const NOTE_FORK = 0x40000000;
427
428	/// process exec'd
429	pub const NOTE_EXEC = 0x20000000;
430
431	/// shared with EVFILT_SIGNAL
432	pub const NOTE_SIGNAL = 0x08000000;
433
434	/// exit status to be returned, valid for child process only
435	pub const NOTE_EXITSTATUS = 0x04000000;
436
437	/// provide details on reasons for exit
438	pub const NOTE_EXIT_DETAIL = 0x02000000;
439
440	/// mask for signal & exit status
441	pub const NOTE_PDATAMASK = 0x000fffff;
442	pub const NOTE_PCTRLMASK = (~NOTE_PDATAMASK);
443
444	pub const NOTE_EXIT_DETAIL_MASK = 0x00070000;
445	pub const NOTE_EXIT_DECRYPTFAIL = 0x00010000;
446	pub const NOTE_EXIT_MEMORY = 0x00020000;
447	pub const NOTE_EXIT_CSERROR = 0x00040000;
448
449	/// will react on memory pressure
450	pub const NOTE_VM_PRESSURE = 0x80000000;
451
452	/// will quit on memory pressure, possibly after cleaning up dirty state
453	pub const NOTE_VM_PRESSURE_TERMINATE = 0x40000000;
454
455	/// will quit immediately on memory pressure
456	pub const NOTE_VM_PRESSURE_SUDDEN_TERMINATE = 0x20000000;
457
458	/// there was an error
459	pub const NOTE_VM_ERROR = 0x10000000;
460
461	/// data is seconds
462	pub const NOTE_SECONDS = 0x00000001;
463
464	/// data is microseconds
465	pub const NOTE_USECONDS = 0x00000002;
466
467	/// data is nanoseconds
468	pub const NOTE_NSECONDS = 0x00000004;
469
470	/// absolute timeout
471	pub const NOTE_ABSOLUTE = 0x00000008;
472
473	/// ext[1] holds leeway for power aware timers
474	pub const NOTE_LEEWAY = 0x00000010;
475
476	/// system does minimal timer coalescing
477	pub const NOTE_CRITICAL = 0x00000020;
478
479	/// system does maximum timer coalescing
480	pub const NOTE_BACKGROUND = 0x00000040;
481	pub const NOTE_MACH_CONTINUOUS_TIME = 0x00000080;
482
483	/// data is mach absolute time units
484	pub const NOTE_MACHTIME = 0x00000100;
485
486	pub const AF_UNSPEC = 0;
487	pub const AF_LOCAL = 1;
488	pub const AF_UNIX = AF_LOCAL;
489	pub const AF_INET = 2;
490	pub const AF_SYS_CONTROL = 2;
491	pub const AF_IMPLINK = 3;
492	pub const AF_PUP = 4;
493	pub const AF_CHAOS = 5;
494	pub const AF_NS = 6;
495	pub const AF_ISO = 7;
496	pub const AF_OSI = AF_ISO;
497	pub const AF_ECMA = 8;
498	pub const AF_DATAKIT = 9;
499	pub const AF_CCITT = 10;
500	pub const AF_SNA = 11;
501	pub const AF_DECnet = 12;
502	pub const AF_DLI = 13;
503	pub const AF_LAT = 14;
504	pub const AF_HYLINK = 15;
505	pub const AF_APPLETALK = 16;
506	pub const AF_ROUTE = 17;
507	pub const AF_LINK = 18;
508	pub const AF_XTP = 19;
509	pub const AF_COIP = 20;
510	pub const AF_CNT = 21;
511	pub const AF_RTIP = 22;
512	pub const AF_IPX = 23;
513	pub const AF_SIP = 24;
514	pub const AF_PIP = 25;
515	pub const AF_ISDN = 28;
516	pub const AF_E164 = AF_ISDN;
517	pub const AF_KEY = 29;
518	pub const AF_INET6 = 30;
519	pub const AF_NATM = 31;
520	pub const AF_SYSTEM = 32;
521	pub const AF_NETBIOS = 33;
522	pub const AF_PPP = 34;
523	pub const AF_MAX = 40;
524
525	pub const PF_UNSPEC = AF_UNSPEC;
526	pub const PF_LOCAL = AF_LOCAL;
527	pub const PF_UNIX = PF_LOCAL;
528	pub const PF_INET = AF_INET;
529	pub const PF_IMPLINK = AF_IMPLINK;
530	pub const PF_PUP = AF_PUP;
531	pub const PF_CHAOS = AF_CHAOS;
532	pub const PF_NS = AF_NS;
533	pub const PF_ISO = AF_ISO;
534	pub const PF_OSI = AF_ISO;
535	pub const PF_ECMA = AF_ECMA;
536	pub const PF_DATAKIT = AF_DATAKIT;
537	pub const PF_CCITT = AF_CCITT;
538	pub const PF_SNA = AF_SNA;
539	pub const PF_DECnet = AF_DECnet;
540	pub const PF_DLI = AF_DLI;
541	pub const PF_LAT = AF_LAT;
542	pub const PF_HYLINK = AF_HYLINK;
543	pub const PF_APPLETALK = AF_APPLETALK;
544	pub const PF_ROUTE = AF_ROUTE;
545	pub const PF_LINK = AF_LINK;
546	pub const PF_XTP = AF_XTP;
547	pub const PF_COIP = AF_COIP;
548	pub const PF_CNT = AF_CNT;
549	pub const PF_SIP = AF_SIP;
550	pub const PF_IPX = AF_IPX;
551	pub const PF_RTIP = AF_RTIP;
552	pub const PF_PIP = AF_PIP;
553	pub const PF_ISDN = AF_ISDN;
554	pub const PF_KEY = AF_KEY;
555	pub const PF_INET6 = AF_INET6;
556	pub const PF_NATM = AF_NATM;
557	pub const PF_SYSTEM = AF_SYSTEM;
558	pub const PF_NETBIOS = AF_NETBIOS;
559	pub const PF_PPP = AF_PPP;
560	pub const PF_MAX = AF_MAX;
561
562	pub const SYSPROTO_EVENT = 1;
563	pub const SYSPROTO_CONTROL = 2;
564
565	pub const SOCK_STREAM = 1;
566	pub const SOCK_DGRAM = 2;
567	pub const SOCK_RAW = 3;
568	pub const SOCK_RDM = 4;
569	pub const SOCK_SEQPACKET = 5;
570	pub const SOCK_MAXADDRLEN = 255;
571
572	pub const IPPROTO_ICMP = 1;
573	pub const IPPROTO_ICMPV6 = 58;
574	pub const IPPROTO_TCP = 6;
575	pub const IPPROTO_UDP = 17;
576	pub const IPPROTO_IP = 0;
577	pub const IPPROTO_IPV6 = 41;
578
579	fn wstatus(x: i32) i32 {
580	return x & 0o177;
581	}
582	const wstopped = 0o177;
583	pub fn WEXITSTATUS(x: i32) i32 {
584	return x >> 8;
585	}
586	pub fn WTERMSIG(x: i32) i32 {
587	return wstatus(x);
588	}
589	pub fn WSTOPSIG(x: i32) i32 {
590	return x >> 8;
591	}
592	pub fn WIFEXITED(x: i32) bool {
593	return wstatus(x) == 0;
594	}
595	pub fn WIFSTOPPED(x: i32) bool {
596	return wstatus(x) == wstopped and WSTOPSIG(x) != 0x13;
597	}
598	pub fn WIFSIGNALED(x: i32) bool {
599	return wstatus(x) != wstopped and wstatus(x) != 0;
600	}
601
602	/// Get the errno from a syscall return value, or 0 for no error.
603	pub fn getErrno(r: usize) usize {
604	const signed_r = @bitCast(isize, r);
605	return if (signed_r > -4096 and signed_r < 0) @intCast(usize, -signed_r) else 0;
606	}
607
608	pub fn close(fd: i32) usize {
609	return errnoWrap(c.close(fd));
610	}
611
612	pub fn abort() noreturn {
613	c.abort();
614	}
615
616	// bind(int socket, const struct sockaddr *address, socklen_t address_len)
617	pub fn bind(fd: i32, addr: *const sockaddr, len: socklen_t) usize {
618	return errnoWrap(c.bind(@bitCast(c_int, fd), addr, len));
619	}
620
621	pub fn exit(code: i32) noreturn {
622	c.exit(code);
623	}
624
625	pub fn isatty(fd: i32) bool {
626	return c.isatty(fd) != 0;
627	}
628
629	pub fn fstat(fd: i32, buf: *c.Stat) usize {
630	return errnoWrap(c.@"fstat$INODE64"(fd, buf));
631	}
632
633	pub fn lseek(fd: i32, offset: isize, whence: c_int) usize {
634	return errnoWrap(c.lseek(fd, offset, whence));
635	}
636
637	// TODO https://github.com/ziglang/zig/issues/265 on the whole file
638	pub fn open(path: [*]const u8, flags: u32, mode: usize) usize {
639	return errnoWrap(c.open(path, @bitCast(c_int, flags), mode));
640	}
641
642	pub fn raise(sig: i32) usize {
643	return errnoWrap(c.raise(sig));
644	}
645
646	pub fn read(fd: i32, buf: [*]u8, nbyte: usize) usize {
647	return errnoWrap(c.read(fd, @ptrCast(*c_void, buf), nbyte));
648	}
649
650	pub fn pread(fd: i32, buf: [*]u8, nbyte: usize, offset: u64) usize {
651	return errnoWrap(c.pread(fd, @ptrCast(*c_void, buf), nbyte, offset));
652	}
653
654	pub fn stat(noalias path: []const u8, noalias buf: stat) usize {
655	return errnoWrap(c.stat(path, buf));
656	}
657
658	pub fn write(fd: i32, buf: [*]const u8, nbyte: usize) usize {
659	return errnoWrap(c.write(fd, @ptrCast(*const c_void, buf), nbyte));
660	}
661
662	pub fn pwrite(fd: i32, buf: [*]const u8, nbyte: usize, offset: u64) usize {
663	return errnoWrap(c.pwrite(fd, @ptrCast(*const c_void, buf), nbyte, offset));
664	}
665
666	pub fn mmap(address: ?[*]u8, length: usize, prot: usize, flags: u32, fd: i32, offset: isize) usize {
667	const ptr_result = c.mmap(
668	@ptrCast(?*c_void, address),
669	length,
670	@bitCast(c_int, @intCast(c_uint, prot)),
671	@bitCast(c_int, c_uint(flags)),
672	fd,
673	offset,
674	);
675	const isize_result = @bitCast(isize, @ptrToInt(ptr_result));
676	return errnoWrap(isize_result);
677	}
678
679	pub fn munmap(address: usize, length: usize) usize {
680	return errnoWrap(c.munmap(@intToPtr(?*c_void, address), length));
681	}
682
683	pub fn unlink(path: [*]const u8) usize {
684	return errnoWrap(c.unlink(path));
685	}
686
687	pub fn getcwd(buf: [*]u8, size: usize) usize {
688	return if (c.getcwd(buf, size) == null) @bitCast(usize, -isize(c._errno().*)) else 0;
689	}
690
691	pub fn waitpid(pid: i32, status: *i32, options: u32) usize {
692	comptime assert(i32.bit_count == c_int.bit_count);
693	return errnoWrap(c.waitpid(pid, @ptrCast(*c_int, status), @bitCast(c_int, options)));
694	}
695
696	pub fn fork() usize {
697	return errnoWrap(c.fork());
698	}
699
700	pub fn access(path: [*]const u8, mode: u32) usize {
701	return errnoWrap(c.access(path, mode));
702	}
703
704	pub fn pipe(fds: *[2]i32) usize {
705	comptime assert(i32.bit_count == c_int.bit_count);
706	return errnoWrap(c.pipe(@ptrCast(*[2]c_int, fds)));
707	}
708
709	pub fn getdirentries64(fd: i32, buf_ptr: []u8, buf_len: usize, basep: i64) usize {
710	return errnoWrap(@bitCast(isize, c.__getdirentries64(fd, buf_ptr, buf_len, basep)));
711	}
712
713	pub fn kqueue() usize {
714	return errnoWrap(c.kqueue());
715	}
716
717	pub fn kevent(kq: i32, changelist: []const Kevent, eventlist: []Kevent, timeout: ?*const timespec) usize {
718	return errnoWrap(c.kevent(
719	kq,
720	changelist.ptr,
721	@intCast(c_int, changelist.len),
722	eventlist.ptr,
723	@intCast(c_int, eventlist.len),
724	timeout,
725	));
726	}
727
728	pub fn kevent64(
729	kq: i32,
730	changelist: []const kevent64_s,
731	eventlist: []kevent64_s,
732	flags: u32,
733	timeout: ?*const timespec,
734	) usize {
735	return errnoWrap(c.kevent64(kq, changelist.ptr, changelist.len, eventlist.ptr, eventlist.len, flags, timeout));
736	}
737
738	pub fn mkdir(path: [*]const u8, mode: u32) usize {
739	return errnoWrap(c.mkdir(path, mode));
740	}
741
742	pub fn symlink(existing: []const u8, new: []const u8) usize {
743	return errnoWrap(c.symlink(existing, new));
744	}
745
746	pub fn sysctl(name: []c_int, namelen: c_uint, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) usize {
747	return errnoWrap(c.sysctl(name, namelen, oldp, oldlenp, newp, newlen));
748	}
749
750	pub fn sysctlbyname(name: []const u8, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) usize {
751	return errnoWrap(c.sysctlbyname(name, oldp, oldlenp, newp, newlen));
752	}
753
754	pub fn sysctlnametomib(name: []const u8, mibp: ?c_int, sizep: ?*usize) usize {
755	return errnoWrap(c.sysctlnametomib(name, wibp, sizep));
756	}
757
758	pub fn rename(old: []const u8, new: []const u8) usize {
759	return errnoWrap(c.rename(old, new));
760	}
761
762	pub fn rmdir(path: [*]const u8) usize {
763	return errnoWrap(c.rmdir(path));
764	}
765
766	pub fn chdir(path: [*]const u8) usize {
767	return errnoWrap(c.chdir(path));
768	}
769
770	pub fn execve(path: []const u8, argv: []const ?[]const u8, envp: []const ?[*]const u8) usize {
771	return errnoWrap(c.execve(path, argv, envp));
772	}
773
774	pub fn dup2(old: i32, new: i32) usize {
775	return errnoWrap(c.dup2(old, new));
776	}
777
778	pub fn readlink(noalias path: []const u8, noalias buf_ptr: []u8, buf_len: usize) usize {
779	return errnoWrap(c.readlink(path, buf_ptr, buf_len));
780	}
781
782	pub fn gettimeofday(tv: ?timeval, tz: ?timezone) usize {
783	return errnoWrap(c.gettimeofday(tv, tz));
784	}
785
786	pub fn nanosleep(req: const timespec, rem: ?timespec) usize {
787	return errnoWrap(c.nanosleep(req, rem));
788	}
789
790	pub fn realpath(noalias filename: []const u8, noalias resolved_name: []u8) usize {
791	return if (c.realpath(filename, resolved_name) == null) @bitCast(usize, -isize(c._errno().*)) else 0;
792	}
793
794	pub fn setreuid(ruid: u32, euid: u32) usize {
795	return errnoWrap(c.setreuid(ruid, euid));
796	}
797
798	pub fn setregid(rgid: u32, egid: u32) usize {
799	return errnoWrap(c.setregid(rgid, egid));
800	}
801
802	pub fn sigprocmask(flags: u32, noalias set: const sigset_t, noalias oldset: ?sigset_t) usize {
803	return errnoWrap(c.sigprocmask(@bitCast(c_int, flags), set, oldset));
804	}
805
806	pub fn sigaction(sig: u5, noalias act: const Sigaction, noalias oact: ?Sigaction) usize {
807	assert(sig != SIGKILL);
808	assert(sig != SIGSTOP);
809	var cact = c.Sigaction{
810	.handler = @ptrCast(extern fn (c_int) void, act.handler),
811	.sa_flags = @bitCast(c_int, act.flags),
812	.sa_mask = act.mask,
813	};
814	var coact: c.Sigaction = undefined;
815	const result = errnoWrap(c.sigaction(sig, &cact, &coact));
816	if (result != 0) {
817	return result;
818	}
819	if (oact) \|old\| {
820	old.* = Sigaction{
821	.handler = @ptrCast(extern fn (i32) void, coact.handler),
822	.flags = @bitCast(u32, coact.sa_flags),
823	.mask = coact.sa_mask,
824	};
825	}
826	return result;
827	}
828
829	pub fn socket(domain: u32, socket_type: u32, protocol: u32) usize {
830	return errnoWrap(c.socket(@bitCast(c_int, domain), @bitCast(c_int, socket_type), @bitCast(c_int, protocol)));
831	}
832
833	pub const iovec = extern struct {
834	iov_base: [*]u8,
835	iov_len: usize,
836	};	6	};
837		7	pub use std.c;
838	pub const iovec_const = extern struct {
839	iov_base: [*]const u8,
840	iov_len: usize,
841	};
842
843	pub const sigset_t = c.sigset_t;
844	pub const empty_sigset = sigset_t(0);
845
846	pub const timespec = c.timespec;
847	pub const Stat = c.Stat;
848	pub const dirent = c.dirent;
849
850	pub const in_port_t = c.in_port_t;
851	pub const sa_family_t = c.sa_family_t;
852	pub const socklen_t = c.socklen_t;
853
854	pub const sockaddr = c.sockaddr;
855	pub const sockaddr_in = c.sockaddr_in;
856	pub const sockaddr_in6 = c.sockaddr_in6;
857
858	/// Renamed from `kevent` to `Kevent` to avoid conflict with the syscall.
859	pub const Kevent = c.Kevent;
860	pub const kevent64_s = c.kevent64_s;
861
862	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
863	pub const Sigaction = struct {
864	handler: extern fn (i32) void,
865	mask: sigset_t,
866	flags: u32,
867	};
868
869	pub fn sigaddset(set: *sigset_t, signo: u5) void {
870	set.* \|= u32(1) << (signo - 1);
871	}
872
873	/// Takes the return value from a syscall and formats it back in the way
874	/// that the kernel represents it to libc. Errno was a mistake, let's make
875	/// it go away forever.
876	fn errnoWrap(value: isize) usize {
877	return @bitCast(usize, if (value == -1) -isize(c._errno().*) else value);
878	}
879
880	pub const timezone = c.timezone;
881	pub const timeval = c.timeval;
882	pub const mach_timebase_info_data = c.mach_timebase_info_data;
883
884	pub const mach_absolute_time = c.mach_absolute_time;
885	pub const mach_timebase_info = c.mach_timebase_info;

std/os/darwin/errno.zig deleted-328

...	@@ -1,328 +0,0 @@
1	/// Operation not permitted
2	pub const EPERM = 1;
3
4	/// No such file or directory
5	pub const ENOENT = 2;
6
7	/// No such process
8	pub const ESRCH = 3;
9
10	/// Interrupted system call
11	pub const EINTR = 4;
12
13	/// Input/output error
14	pub const EIO = 5;
15
16	/// Device not configured
17	pub const ENXIO = 6;
18
19	/// Argument list too long
20	pub const E2BIG = 7;
21
22	/// Exec format error
23	pub const ENOEXEC = 8;
24
25	/// Bad file descriptor
26	pub const EBADF = 9;
27
28	/// No child processes
29	pub const ECHILD = 10;
30
31	/// Resource deadlock avoided
32	pub const EDEADLK = 11;
33
34	/// Cannot allocate memory
35	pub const ENOMEM = 12;
36
37	/// Permission denied
38	pub const EACCES = 13;
39
40	/// Bad address
41	pub const EFAULT = 14;
42
43	/// Block device required
44	pub const ENOTBLK = 15;
45
46	/// Device / Resource busy
47	pub const EBUSY = 16;
48
49	/// File exists
50	pub const EEXIST = 17;
51
52	/// Cross-device link
53	pub const EXDEV = 18;
54
55	/// Operation not supported by device
56	pub const ENODEV = 19;
57
58	/// Not a directory
59	pub const ENOTDIR = 20;
60
61	/// Is a directory
62	pub const EISDIR = 21;
63
64	/// Invalid argument
65	pub const EINVAL = 22;
66
67	/// Too many open files in system
68	pub const ENFILE = 23;
69
70	/// Too many open files
71	pub const EMFILE = 24;
72
73	/// Inappropriate ioctl for device
74	pub const ENOTTY = 25;
75
76	/// Text file busy
77	pub const ETXTBSY = 26;
78
79	/// File too large
80	pub const EFBIG = 27;
81
82	/// No space left on device
83	pub const ENOSPC = 28;
84
85	/// Illegal seek
86	pub const ESPIPE = 29;
87
88	/// Read-only file system
89	pub const EROFS = 30;
90
91	/// Too many links
92	pub const EMLINK = 31;
93	/// Broken pipe
94
95	// math software
96	pub const EPIPE = 32;
97
98	/// Numerical argument out of domain
99	pub const EDOM = 33;
100	/// Result too large
101
102	// non-blocking and interrupt i/o
103	pub const ERANGE = 34;
104
105	/// Resource temporarily unavailable
106	pub const EAGAIN = 35;
107
108	/// Operation would block
109	pub const EWOULDBLOCK = EAGAIN;
110
111	/// Operation now in progress
112	pub const EINPROGRESS = 36;
113	/// Operation already in progress
114
115	// ipc/network software -- argument errors
116	pub const EALREADY = 37;
117
118	/// Socket operation on non-socket
119	pub const ENOTSOCK = 38;
120
121	/// Destination address required
122	pub const EDESTADDRREQ = 39;
123
124	/// Message too long
125	pub const EMSGSIZE = 40;
126
127	/// Protocol wrong type for socket
128	pub const EPROTOTYPE = 41;
129
130	/// Protocol not available
131	pub const ENOPROTOOPT = 42;
132
133	/// Protocol not supported
134	pub const EPROTONOSUPPORT = 43;
135
136	/// Socket type not supported
137	pub const ESOCKTNOSUPPORT = 44;
138
139	/// Operation not supported
140	pub const ENOTSUP = 45;
141
142	/// Protocol family not supported
143	pub const EPFNOSUPPORT = 46;
144
145	/// Address family not supported by protocol family
146	pub const EAFNOSUPPORT = 47;
147
148	/// Address already in use
149	pub const EADDRINUSE = 48;
150	/// Can't assign requested address
151
152	// ipc/network software -- operational errors
153	pub const EADDRNOTAVAIL = 49;
154
155	/// Network is down
156	pub const ENETDOWN = 50;
157
158	/// Network is unreachable
159	pub const ENETUNREACH = 51;
160
161	/// Network dropped connection on reset
162	pub const ENETRESET = 52;
163
164	/// Software caused connection abort
165	pub const ECONNABORTED = 53;
166
167	/// Connection reset by peer
168	pub const ECONNRESET = 54;
169
170	/// No buffer space available
171	pub const ENOBUFS = 55;
172
173	/// Socket is already connected
174	pub const EISCONN = 56;
175
176	/// Socket is not connected
177	pub const ENOTCONN = 57;
178
179	/// Can't send after socket shutdown
180	pub const ESHUTDOWN = 58;
181
182	/// Too many references: can't splice
183	pub const ETOOMANYREFS = 59;
184
185	/// Operation timed out
186	pub const ETIMEDOUT = 60;
187
188	/// Connection refused
189	pub const ECONNREFUSED = 61;
190
191	/// Too many levels of symbolic links
192	pub const ELOOP = 62;
193
194	/// File name too long
195	pub const ENAMETOOLONG = 63;
196
197	/// Host is down
198	pub const EHOSTDOWN = 64;
199
200	/// No route to host
201	pub const EHOSTUNREACH = 65;
202	/// Directory not empty
203
204	// quotas & mush
205	pub const ENOTEMPTY = 66;
206
207	/// Too many processes
208	pub const EPROCLIM = 67;
209
210	/// Too many users
211	pub const EUSERS = 68;
212	/// Disc quota exceeded
213
214	// Network File System
215	pub const EDQUOT = 69;
216
217	/// Stale NFS file handle
218	pub const ESTALE = 70;
219
220	/// Too many levels of remote in path
221	pub const EREMOTE = 71;
222
223	/// RPC struct is bad
224	pub const EBADRPC = 72;
225
226	/// RPC version wrong
227	pub const ERPCMISMATCH = 73;
228
229	/// RPC prog. not avail
230	pub const EPROGUNAVAIL = 74;
231
232	/// Program version wrong
233	pub const EPROGMISMATCH = 75;
234
235	/// Bad procedure for program
236	pub const EPROCUNAVAIL = 76;
237
238	/// No locks available
239	pub const ENOLCK = 77;
240
241	/// Function not implemented
242	pub const ENOSYS = 78;
243
244	/// Inappropriate file type or format
245	pub const EFTYPE = 79;
246
247	/// Authentication error
248	pub const EAUTH = 80;
249	/// Need authenticator
250
251	// Intelligent device errors
252	pub const ENEEDAUTH = 81;
253
254	/// Device power is off
255	pub const EPWROFF = 82;
256
257	/// Device error, e.g. paper out
258	pub const EDEVERR = 83;
259	/// Value too large to be stored in data type
260
261	// Program loading errors
262	pub const EOVERFLOW = 84;
263
264	/// Bad executable
265	pub const EBADEXEC = 85;
266
267	/// Bad CPU type in executable
268	pub const EBADARCH = 86;
269
270	/// Shared library version mismatch
271	pub const ESHLIBVERS = 87;
272
273	/// Malformed Macho file
274	pub const EBADMACHO = 88;
275
276	/// Operation canceled
277	pub const ECANCELED = 89;
278
279	/// Identifier removed
280	pub const EIDRM = 90;
281
282	/// No message of desired type
283	pub const ENOMSG = 91;
284
285	/// Illegal byte sequence
286	pub const EILSEQ = 92;
287
288	/// Attribute not found
289	pub const ENOATTR = 93;
290
291	/// Bad message
292	pub const EBADMSG = 94;
293
294	/// Reserved
295	pub const EMULTIHOP = 95;
296
297	/// No message available on STREAM
298	pub const ENODATA = 96;
299
300	/// Reserved
301	pub const ENOLINK = 97;
302
303	/// No STREAM resources
304	pub const ENOSR = 98;
305
306	/// Not a STREAM
307	pub const ENOSTR = 99;
308
309	/// Protocol error
310	pub const EPROTO = 100;
311
312	/// STREAM ioctl timeout
313	pub const ETIME = 101;
314
315	/// No such policy registered
316	pub const ENOPOLICY = 103;
317
318	/// State not recoverable
319	pub const ENOTRECOVERABLE = 104;
320
321	/// Previous owner died
322	pub const EOWNERDEAD = 105;
323
324	/// Interface output queue is full
325	pub const EQFULL = 106;
326
327	/// Must be equal largest errno
328	pub const ELAST = 106;

std/os/epoch.zig deleted-26

...	@@ -1,26 +0,0 @@
1	/// Epoch reference times in terms of their difference from
2	/// posix epoch in seconds.
3	pub const posix = 0; //Jan 01, 1970 AD
4	pub const dos = 315532800; //Jan 01, 1980 AD
5	pub const ios = 978307200; //Jan 01, 2001 AD
6	pub const openvms = -3506716800; //Nov 17, 1858 AD
7	pub const zos = -2208988800; //Jan 01, 1900 AD
8	pub const windows = -11644473600; //Jan 01, 1601 AD
9	pub const amiga = 252460800; //Jan 01, 1978 AD
10	pub const pickos = -63244800; //Dec 31, 1967 AD
11	pub const gps = 315964800; //Jan 06, 1980 AD
12	pub const clr = -62135769600; //Jan 01, 0001 AD
13
14	pub const unix = posix;
15	pub const android = posix;
16	pub const os2 = dos;
17	pub const bios = dos;
18	pub const vfat = dos;
19	pub const ntfs = windows;
20	pub const ntp = zos;
21	pub const jbase = pickos;
22	pub const aros = amiga;
23	pub const morphos = amiga;
24	pub const brew = gps;
25	pub const atsc = gps;
26	pub const go = clr;

std/os/file.zig deleted-512

...	@@ -1,512 +0,0 @@
1	const std = @import("../std.zig");
2	const builtin = @import("builtin");
3	const os = std.os;
4	const io = std.io;
5	const mem = std.mem;
6	const math = std.math;
7	const assert = std.debug.assert;
8	const posix = os.posix;
9	const windows = os.windows;
10	const Os = builtin.Os;
11	const windows_util = @import("windows/util.zig");
12	const maxInt = std.math.maxInt;
13
14	const is_posix = builtin.os != builtin.Os.windows;
15	const is_windows = builtin.os == builtin.Os.windows;
16
17	pub const File = struct {
18	/// The OS-specific file descriptor or file handle.
19	handle: os.FileHandle,
20
21	pub const Mode = switch (builtin.os) {
22	Os.windows => void,
23	else => u32,
24	};
25
26	pub const default_mode = switch (builtin.os) {
27	Os.windows => {},
28	else => 0o666,
29	};
30
31	pub const OpenError = os.WindowsOpenError \|\| os.PosixOpenError;
32
33	/// `openRead` except with a null terminated path
34	pub fn openReadC(path: [*]const u8) OpenError!File {
35	if (is_posix) {
36	const flags = posix.O_LARGEFILE \| posix.O_RDONLY;
37	const fd = try os.posixOpenC(path, flags, 0);
38	return openHandle(fd);
39	}
40	if (is_windows) {
41	return openRead(mem.toSliceConst(u8, path));
42	}
43	@compileError("Unsupported OS");
44	}
45
46	/// Call close to clean up.
47	pub fn openRead(path: []const u8) OpenError!File {
48	if (is_posix) {
49	const path_c = try os.toPosixPath(path);
50	return openReadC(&path_c);
51	}
52	if (is_windows) {
53	const path_w = try windows_util.sliceToPrefixedFileW(path);
54	return openReadW(&path_w);
55	}
56	@compileError("Unsupported OS");
57	}
58
59	pub fn openReadW(path_w: [*]const u16) OpenError!File {
60	const handle = try os.windowsOpenW(
61	path_w,
62	windows.GENERIC_READ,
63	windows.FILE_SHARE_READ,
64	windows.OPEN_EXISTING,
65	windows.FILE_ATTRIBUTE_NORMAL,
66	);
67	return openHandle(handle);
68	}
69
70	/// Calls `openWriteMode` with os.File.default_mode for the mode.
71	pub fn openWrite(path: []const u8) OpenError!File {
72	return openWriteMode(path, os.File.default_mode);
73	}
74
75	/// If the path does not exist it will be created.
76	/// If a file already exists in the destination it will be truncated.
77	/// Call close to clean up.
78	pub fn openWriteMode(path: []const u8, file_mode: Mode) OpenError!File {
79	if (is_posix) {
80	const flags = posix.O_LARGEFILE \| posix.O_WRONLY \| posix.O_CREAT \| posix.O_CLOEXEC \| posix.O_TRUNC;
81	const fd = try os.posixOpen(path, flags, file_mode);
82	return openHandle(fd);
83	} else if (is_windows) {
84	const path_w = try windows_util.sliceToPrefixedFileW(path);
85	return openWriteModeW(&path_w, file_mode);
86	} else {
87	@compileError("TODO implement openWriteMode for this OS");
88	}
89	}
90
91	pub fn openWriteModeW(path_w: [*]const u16, file_mode: Mode) OpenError!File {
92	const handle = try os.windowsOpenW(
93	path_w,
94	windows.GENERIC_WRITE,
95	windows.FILE_SHARE_WRITE \| windows.FILE_SHARE_READ \| windows.FILE_SHARE_DELETE,
96	windows.CREATE_ALWAYS,
97	windows.FILE_ATTRIBUTE_NORMAL,
98	);
99	return openHandle(handle);
100	}
101
102	/// If the path does not exist it will be created.
103	/// If a file already exists in the destination this returns OpenError.PathAlreadyExists
104	/// Call close to clean up.
105	pub fn openWriteNoClobber(path: []const u8, file_mode: Mode) OpenError!File {
106	if (is_posix) {
107	const path_c = try os.toPosixPath(path);
108	return openWriteNoClobberC(&path_c, file_mode);
109	} else if (is_windows) {
110	const path_w = try windows_util.sliceToPrefixedFileW(path);
111	return openWriteNoClobberW(&path_w, file_mode);
112	} else {
113	@compileError("TODO implement openWriteMode for this OS");
114	}
115	}
116
117	pub fn openWriteNoClobberC(path: [*]const u8, file_mode: Mode) OpenError!File {
118	if (is_posix) {
119	const flags = posix.O_LARGEFILE \| posix.O_WRONLY \| posix.O_CREAT \| posix.O_CLOEXEC \| posix.O_EXCL;
120	const fd = try os.posixOpenC(path, flags, file_mode);
121	return openHandle(fd);
122	} else if (is_windows) {
123	const path_w = try windows_util.cStrToPrefixedFileW(path);
124	return openWriteNoClobberW(&path_w, file_mode);
125	} else {
126	@compileError("TODO implement openWriteMode for this OS");
127	}
128	}
129
130	pub fn openWriteNoClobberW(path_w: [*]const u16, file_mode: Mode) OpenError!File {
131	const handle = try os.windowsOpenW(
132	path_w,
133	windows.GENERIC_WRITE,
134	windows.FILE_SHARE_WRITE \| windows.FILE_SHARE_READ \| windows.FILE_SHARE_DELETE,
135	windows.CREATE_NEW,
136	windows.FILE_ATTRIBUTE_NORMAL,
137	);
138	return openHandle(handle);
139	}
140
141	pub fn openHandle(handle: os.FileHandle) File {
142	return File{ .handle = handle };
143	}
144
145	pub const AccessError = error{
146	PermissionDenied,
147	FileNotFound,
148	NameTooLong,
149	InputOutput,
150	SystemResources,
151	BadPathName,
152
153	/// On Windows, file paths must be valid Unicode.
154	InvalidUtf8,
155
156	Unexpected,
157	};
158
159	/// Call from Windows-specific code if you already have a UTF-16LE encoded, null terminated string.
160	/// Otherwise use `access` or `accessC`.
161	pub fn accessW(path: [*]const u16) AccessError!void {
162	if (os.windows.GetFileAttributesW(path) != os.windows.INVALID_FILE_ATTRIBUTES) {
163	return;
164	}
165
166	const err = windows.GetLastError();
167	switch (err) {
168	windows.ERROR.FILE_NOT_FOUND => return error.FileNotFound,
169	windows.ERROR.PATH_NOT_FOUND => return error.FileNotFound,
170	windows.ERROR.ACCESS_DENIED => return error.PermissionDenied,
171	else => return os.unexpectedErrorWindows(err),
172	}
173	}
174
175	/// Call if you have a UTF-8 encoded, null-terminated string.
176	/// Otherwise use `access` or `accessW`.
177	pub fn accessC(path: [*]const u8) AccessError!void {
178	if (is_windows) {
179	const path_w = try windows_util.cStrToPrefixedFileW(path);
180	return accessW(&path_w);
181	}
182	if (is_posix) {
183	const result = posix.access(path, posix.F_OK);
184	const err = posix.getErrno(result);
185	switch (err) {
186	0 => return,
187	posix.EACCES => return error.PermissionDenied,
188	posix.EROFS => return error.PermissionDenied,
189	posix.ELOOP => return error.PermissionDenied,
190	posix.ETXTBSY => return error.PermissionDenied,
191	posix.ENOTDIR => return error.FileNotFound,
192	posix.ENOENT => return error.FileNotFound,
193
194	posix.ENAMETOOLONG => return error.NameTooLong,
195	posix.EINVAL => unreachable,
196	posix.EFAULT => unreachable,
197	posix.EIO => return error.InputOutput,
198	posix.ENOMEM => return error.SystemResources,
199	else => return os.unexpectedErrorPosix(err),
200	}
201	}
202	@compileError("Unsupported OS");
203	}
204
205	pub fn access(path: []const u8) AccessError!void {
206	if (is_windows) {
207	const path_w = try windows_util.sliceToPrefixedFileW(path);
208	return accessW(&path_w);
209	}
210	if (is_posix) {
211	var path_with_null: [posix.PATH_MAX]u8 = undefined;
212	if (path.len >= posix.PATH_MAX) return error.NameTooLong;
213	mem.copy(u8, path_with_null[0..], path);
214	path_with_null[path.len] = 0;
215	return accessC(&path_with_null);
216	}
217	@compileError("Unsupported OS");
218	}
219
220	/// Upon success, the stream is in an uninitialized state. To continue using it,
221	/// you must use the open() function.
222	pub fn close(self: File) void {
223	os.close(self.handle);
224	}
225
226	/// Calls `os.isTty` on `self.handle`.
227	pub fn isTty(self: File) bool {
228	return os.isTty(self.handle);
229	}
230
231	pub const SeekError = error{
232	/// TODO make this error impossible to get
233	Overflow,
234	Unseekable,
235	Unexpected,
236	};
237
238	pub fn seekForward(self: File, amount: i64) SeekError!void {
239	switch (builtin.os) {
240	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {
241	const iamount = try math.cast(isize, amount);
242	const result = posix.lseek(self.handle, iamount, posix.SEEK_CUR);
243	const err = posix.getErrno(result);
244	if (err > 0) {
245	return switch (err) {
246	// We do not make this an error code because if you get EBADF it's always a bug,
247	// since the fd could have been reused.
248	posix.EBADF => unreachable,
249	posix.EINVAL => error.Unseekable,
250	posix.EOVERFLOW => error.Unseekable,
251	posix.ESPIPE => error.Unseekable,
252	posix.ENXIO => error.Unseekable,
253	else => os.unexpectedErrorPosix(err),
254	};
255	}
256	},
257	Os.windows => {
258	if (windows.SetFilePointerEx(self.handle, amount, null, windows.FILE_CURRENT) == 0) {
259	const err = windows.GetLastError();
260	return switch (err) {
261	windows.ERROR.INVALID_PARAMETER => unreachable,
262	else => os.unexpectedErrorWindows(err),
263	};
264	}
265	},
266	else => @compileError("unsupported OS"),
267	}
268	}
269
270	pub fn seekTo(self: File, pos: u64) SeekError!void {
271	switch (builtin.os) {
272	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {
273	const ipos = try math.cast(isize, pos);
274	const result = posix.lseek(self.handle, ipos, posix.SEEK_SET);
275	const err = posix.getErrno(result);
276	if (err > 0) {
277	return switch (err) {
278	// We do not make this an error code because if you get EBADF it's always a bug,
279	// since the fd could have been reused.
280	posix.EBADF => unreachable,
281	posix.EINVAL => error.Unseekable,
282	posix.EOVERFLOW => error.Unseekable,
283	posix.ESPIPE => error.Unseekable,
284	posix.ENXIO => error.Unseekable,
285	else => os.unexpectedErrorPosix(err),
286	};
287	}
288	},
289	Os.windows => {
290	const ipos = try math.cast(isize, pos);
291	if (windows.SetFilePointerEx(self.handle, ipos, null, windows.FILE_BEGIN) == 0) {
292	const err = windows.GetLastError();
293	return switch (err) {
294	windows.ERROR.INVALID_PARAMETER => unreachable,
295	windows.ERROR.INVALID_HANDLE => unreachable,
296	else => os.unexpectedErrorWindows(err),
297	};
298	}
299	},
300	else => @compileError("unsupported OS: " ++ @tagName(builtin.os)),
301	}
302	}
303
304	pub const GetSeekPosError = error{
305	SystemResources,
306	Unseekable,
307	Unexpected,
308	};
309
310	pub fn getPos(self: File) GetSeekPosError!u64 {
311	switch (builtin.os) {
312	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {
313	const result = posix.lseek(self.handle, 0, posix.SEEK_CUR);
314	const err = posix.getErrno(result);
315	if (err > 0) {
316	return switch (err) {
317	// We do not make this an error code because if you get EBADF it's always a bug,
318	// since the fd could have been reused.
319	posix.EBADF => unreachable,
320	posix.EINVAL => error.Unseekable,
321	posix.EOVERFLOW => error.Unseekable,
322	posix.ESPIPE => error.Unseekable,
323	posix.ENXIO => error.Unseekable,
324	else => os.unexpectedErrorPosix(err),
325	};
326	}
327	return u64(result);
328	},
329	Os.windows => {
330	var pos: windows.LARGE_INTEGER = undefined;
331	if (windows.SetFilePointerEx(self.handle, 0, &pos, windows.FILE_CURRENT) == 0) {
332	const err = windows.GetLastError();
333	return switch (err) {
334	windows.ERROR.INVALID_PARAMETER => unreachable,
335	else => os.unexpectedErrorWindows(err),
336	};
337	}
338
339	return @intCast(u64, pos);
340	},
341	else => @compileError("unsupported OS"),
342	}
343	}
344
345	pub fn getEndPos(self: File) GetSeekPosError!u64 {
346	if (is_posix) {
347	const stat = try os.posixFStat(self.handle);
348	return @intCast(u64, stat.size);
349	} else if (is_windows) {
350	var file_size: windows.LARGE_INTEGER = undefined;
351	if (windows.GetFileSizeEx(self.handle, &file_size) == 0) {
352	const err = windows.GetLastError();
353	return switch (err) {
354	else => os.unexpectedErrorWindows(err),
355	};
356	}
357	return @intCast(u64, file_size);
358	} else {
359	@compileError("TODO support getEndPos on this OS");
360	}
361	}
362
363	pub const ModeError = error{
364	SystemResources,
365	Unexpected,
366	};
367
368	pub fn mode(self: File) ModeError!Mode {
369	if (is_posix) {
370	var stat: posix.Stat = undefined;
371	const err = posix.getErrno(posix.fstat(self.handle, &stat));
372	if (err > 0) {
373	return switch (err) {
374	// We do not make this an error code because if you get EBADF it's always a bug,
375	// since the fd could have been reused.
376	posix.EBADF => unreachable,
377	posix.ENOMEM => error.SystemResources,
378	else => os.unexpectedErrorPosix(err),
379	};
380	}
381
382	// TODO: we should be able to cast u16 to ModeError!u32, making this
383	// explicit cast not necessary
384	return Mode(stat.mode);
385	} else if (is_windows) {
386	return {};
387	} else {
388	@compileError("TODO support file mode on this OS");
389	}
390	}
391
392	pub const ReadError = os.WindowsReadError \|\| os.PosixReadError;
393
394	pub fn read(self: File, buffer: []u8) ReadError!usize {
395	if (is_posix) {
396	return os.posixRead(self.handle, buffer);
397	} else if (is_windows) {
398	var index: usize = 0;
399	while (index < buffer.len) {
400	const want_read_count = @intCast(windows.DWORD, math.min(windows.DWORD(maxInt(windows.DWORD)), buffer.len - index));
401	var amt_read: windows.DWORD = undefined;
402	if (windows.ReadFile(self.handle, buffer.ptr + index, want_read_count, &amt_read, null) == 0) {
403	const err = windows.GetLastError();
404	return switch (err) {
405	windows.ERROR.OPERATION_ABORTED => continue,
406	windows.ERROR.BROKEN_PIPE => return index,
407	else => os.unexpectedErrorWindows(err),
408	};
409	}
410	if (amt_read == 0) return index;
411	index += amt_read;
412	}
413	return index;
414	} else {
415	@compileError("Unsupported OS");
416	}
417	}
418
419	pub const WriteError = os.WindowsWriteError \|\| os.PosixWriteError;
420
421	pub fn write(self: File, bytes: []const u8) WriteError!void {
422	if (is_posix) {
423	try os.posixWrite(self.handle, bytes);
424	} else if (is_windows) {
425	try os.windowsWrite(self.handle, bytes);
426	} else {
427	@compileError("Unsupported OS");
428	}
429	}
430
431	pub fn inStream(file: File) InStream {
432	return InStream{
433	.file = file,
434	.stream = InStream.Stream{ .readFn = InStream.readFn },
435	};
436	}
437
438	pub fn outStream(file: File) OutStream {
439	return OutStream{
440	.file = file,
441	.stream = OutStream.Stream{ .writeFn = OutStream.writeFn },
442	};
443	}
444
445	pub fn seekableStream(file: File) SeekableStream {
446	return SeekableStream{
447	.file = file,
448	.stream = SeekableStream.Stream{
449	.seekToFn = SeekableStream.seekToFn,
450	.seekForwardFn = SeekableStream.seekForwardFn,
451	.getPosFn = SeekableStream.getPosFn,
452	.getEndPosFn = SeekableStream.getEndPosFn,
453	},
454	};
455	}
456
457	/// Implementation of io.InStream trait for File
458	pub const InStream = struct {
459	file: File,
460	stream: Stream,
461
462	pub const Error = ReadError;
463	pub const Stream = io.InStream(Error);
464
465	fn readFn(in_stream: *Stream, buffer: []u8) Error!usize {
466	const self = @fieldParentPtr(InStream, "stream", in_stream);
467	return self.file.read(buffer);
468	}
469	};
470
471	/// Implementation of io.OutStream trait for File
472	pub const OutStream = struct {
473	file: File,
474	stream: Stream,
475
476	pub const Error = WriteError;
477	pub const Stream = io.OutStream(Error);
478
479	fn writeFn(out_stream: *Stream, bytes: []const u8) Error!void {
480	const self = @fieldParentPtr(OutStream, "stream", out_stream);
481	return self.file.write(bytes);
482	}
483	};
484
485	/// Implementation of io.SeekableStream trait for File
486	pub const SeekableStream = struct {
487	file: File,
488	stream: Stream,
489
490	pub const Stream = io.SeekableStream(SeekError, GetSeekPosError);
491
492	pub fn seekToFn(seekable_stream: *Stream, pos: u64) SeekError!void {
493	const self = @fieldParentPtr(SeekableStream, "stream", seekable_stream);
494	return self.file.seekTo(pos);
495	}
496
497	pub fn seekForwardFn(seekable_stream: *Stream, amt: i64) SeekError!void {
498	const self = @fieldParentPtr(SeekableStream, "stream", seekable_stream);
499	return self.file.seekForward(amt);
500	}
501
502	pub fn getEndPosFn(seekable_stream: *Stream) GetSeekPosError!u64 {
503	const self = @fieldParentPtr(SeekableStream, "stream", seekable_stream);
504	return self.file.getEndPos();
505	}
506
507	pub fn getPosFn(seekable_stream: *Stream) GetSeekPosError!u64 {
508	const self = @fieldParentPtr(SeekableStream, "stream", seekable_stream);
509	return self.file.getPos();
510	}
511	};
512	};

std/os/freebsd.zig+3-844

...	@@ -1,845 +1,4 @@	...	@@ -1,845 +1,4 @@
1	const builtin = @import("builtin");
2
3	pub use @import("freebsd/errno.zig");
4
5	const std = @import("../std.zig");	1	const std = @import("../std.zig");
6	const c = std.c;	2	const builtin = @import("builtin");
7		3	pub const is_the_target = builtin.os == .freebsd;
8	const assert = std.debug.assert;	4	pub use std.c;
9	const maxInt = std.math.maxInt;
10	pub const Kevent = c.Kevent;
11
12	pub const CTL_KERN = 1;
13	pub const CTL_DEBUG = 5;
14
15	pub const KERN_PROC = 14; // struct: process entries
16	pub const KERN_PROC_PATHNAME = 12; // path to executable
17
18	pub const PATH_MAX = 1024;
19
20	pub const STDIN_FILENO = 0;
21	pub const STDOUT_FILENO = 1;
22	pub const STDERR_FILENO = 2;
23
24	pub const PROT_NONE = 0;
25	pub const PROT_READ = 1;
26	pub const PROT_WRITE = 2;
27	pub const PROT_EXEC = 4;
28
29	pub const CLOCK_REALTIME = 0;
30	pub const CLOCK_VIRTUAL = 1;
31	pub const CLOCK_PROF = 2;
32	pub const CLOCK_MONOTONIC = 4;
33	pub const CLOCK_UPTIME = 5;
34	pub const CLOCK_UPTIME_PRECISE = 7;
35	pub const CLOCK_UPTIME_FAST = 8;
36	pub const CLOCK_REALTIME_PRECISE = 9;
37	pub const CLOCK_REALTIME_FAST = 10;
38	pub const CLOCK_MONOTONIC_PRECISE = 11;
39	pub const CLOCK_MONOTONIC_FAST = 12;
40	pub const CLOCK_SECOND = 13;
41	pub const CLOCK_THREAD_CPUTIME_ID = 14;
42	pub const CLOCK_PROCESS_CPUTIME_ID = 15;
43
44	pub const MAP_FAILED = maxInt(usize);
45	pub const MAP_SHARED = 0x0001;
46	pub const MAP_PRIVATE = 0x0002;
47	pub const MAP_FIXED = 0x0010;
48	pub const MAP_STACK = 0x0400;
49	pub const MAP_NOSYNC = 0x0800;
50	pub const MAP_ANON = 0x1000;
51	pub const MAP_ANONYMOUS = MAP_ANON;
52	pub const MAP_FILE = 0;
53	pub const MAP_NORESERVE = 0;
54
55	pub const MAP_GUARD = 0x00002000;
56	pub const MAP_EXCL = 0x00004000;
57	pub const MAP_NOCORE = 0x00020000;
58	pub const MAP_PREFAULT_READ = 0x00040000;
59	pub const MAP_32BIT = 0x00080000;
60
61	pub const WNOHANG = 1;
62	pub const WUNTRACED = 2;
63	pub const WSTOPPED = WUNTRACED;
64	pub const WCONTINUED = 4;
65	pub const WNOWAIT = 8;
66	pub const WEXITED = 16;
67	pub const WTRAPPED = 32;
68
69	pub const SA_ONSTACK = 0x0001;
70	pub const SA_RESTART = 0x0002;
71	pub const SA_RESETHAND = 0x0004;
72	pub const SA_NOCLDSTOP = 0x0008;
73	pub const SA_NODEFER = 0x0010;
74	pub const SA_NOCLDWAIT = 0x0020;
75	pub const SA_SIGINFO = 0x0040;
76
77	pub const SIGHUP = 1;
78	pub const SIGINT = 2;
79	pub const SIGQUIT = 3;
80	pub const SIGILL = 4;
81	pub const SIGTRAP = 5;
82	pub const SIGABRT = 6;
83	pub const SIGIOT = SIGABRT;
84	pub const SIGEMT = 7;
85	pub const SIGFPE = 8;
86	pub const SIGKILL = 9;
87	pub const SIGBUS = 10;
88	pub const SIGSEGV = 11;
89	pub const SIGSYS = 12;
90	pub const SIGPIPE = 13;
91	pub const SIGALRM = 14;
92	pub const SIGTERM = 15;
93	pub const SIGURG = 16;
94	pub const SIGSTOP = 17;
95	pub const SIGTSTP = 18;
96	pub const SIGCONT = 19;
97	pub const SIGCHLD = 20;
98	pub const SIGTTIN = 21;
99	pub const SIGTTOU = 22;
100	pub const SIGIO = 23;
101	pub const SIGXCPU = 24;
102	pub const SIGXFSZ = 25;
103	pub const SIGVTALRM = 26;
104	pub const SIGPROF = 27;
105	pub const SIGWINCH = 28;
106	pub const SIGINFO = 29;
107	pub const SIGUSR1 = 30;
108	pub const SIGUSR2 = 31;
109	pub const SIGTHR = 32;
110	pub const SIGLWP = SIGTHR;
111	pub const SIGLIBRT = 33;
112
113	pub const SIGRTMIN = 65;
114	pub const SIGRTMAX = 126;
115
116	// access function
117	pub const F_OK = 0; // test for existence of file
118	pub const X_OK = 1; // test for execute or search permission
119	pub const W_OK = 2; // test for write permission
120	pub const R_OK = 4; // test for read permission
121
122	pub const O_RDONLY = 0x0000;
123	pub const O_WRONLY = 0x0001;
124	pub const O_RDWR = 0x0002;
125	pub const O_ACCMODE = 0x0003;
126
127	pub const O_CREAT = 0x0200;
128	pub const O_EXCL = 0x0800;
129	pub const O_NOCTTY = 0x8000;
130	pub const O_TRUNC = 0x0400;
131	pub const O_APPEND = 0x0008;
132	pub const O_NONBLOCK = 0x0004;
133	pub const O_DSYNC = 0o10000;
134	pub const O_SYNC = 0x0080;
135	pub const O_RSYNC = 0o4010000;
136	pub const O_DIRECTORY = 0o200000;
137	pub const O_NOFOLLOW = 0x0100;
138	pub const O_CLOEXEC = 0x00100000;
139
140	pub const O_ASYNC = 0x0040;
141	pub const O_DIRECT = 0x00010000;
142	pub const O_LARGEFILE = 0;
143	pub const O_NOATIME = 0o1000000;
144	pub const O_PATH = 0o10000000;
145	pub const O_TMPFILE = 0o20200000;
146	pub const O_NDELAY = O_NONBLOCK;
147
148	pub const F_DUPFD = 0;
149	pub const F_GETFD = 1;
150	pub const F_SETFD = 2;
151	pub const F_GETFL = 3;
152	pub const F_SETFL = 4;
153
154	pub const F_SETOWN = 8;
155	pub const F_GETOWN = 9;
156	pub const F_SETSIG = 10;
157	pub const F_GETSIG = 11;
158
159	pub const F_GETLK = 5;
160	pub const F_SETLK = 6;
161	pub const F_SETLKW = 7;
162
163	pub const F_SETOWN_EX = 15;
164	pub const F_GETOWN_EX = 16;
165
166	pub const F_GETOWNER_UIDS = 17;
167
168	pub const SEEK_SET = 0;
169	pub const SEEK_CUR = 1;
170	pub const SEEK_END = 2;
171
172	pub const SIG_BLOCK = 1;
173	pub const SIG_UNBLOCK = 2;
174	pub const SIG_SETMASK = 3;
175
176	pub const SOCK_STREAM = 1;
177	pub const SOCK_DGRAM = 2;
178	pub const SOCK_RAW = 3;
179	pub const SOCK_RDM = 4;
180	pub const SOCK_SEQPACKET = 5;
181
182	pub const SOCK_CLOEXEC = 0x10000000;
183	pub const SOCK_NONBLOCK = 0x20000000;
184
185	pub const PROTO_ip = 0o000;
186	pub const PROTO_icmp = 0o001;
187	pub const PROTO_igmp = 0o002;
188	pub const PROTO_ggp = 0o003;
189	pub const PROTO_ipencap = 0o004;
190	pub const PROTO_st = 0o005;
191	pub const PROTO_tcp = 0o006;
192	pub const PROTO_egp = 0o010;
193	pub const PROTO_pup = 0o014;
194	pub const PROTO_udp = 0o021;
195	pub const PROTO_hmp = 0o024;
196	pub const PROTO_xns_idp = 0o026;
197	pub const PROTO_rdp = 0o033;
198	pub const PROTO_iso_tp4 = 0o035;
199	pub const PROTO_xtp = 0o044;
200	pub const PROTO_ddp = 0o045;
201	pub const PROTO_idpr_cmtp = 0o046;
202	pub const PROTO_ipv6 = 0o051;
203	pub const PROTO_ipv6_route = 0o053;
204	pub const PROTO_ipv6_frag = 0o054;
205	pub const PROTO_idrp = 0o055;
206	pub const PROTO_rsvp = 0o056;
207	pub const PROTO_gre = 0o057;
208	pub const PROTO_esp = 0o062;
209	pub const PROTO_ah = 0o063;
210	pub const PROTO_skip = 0o071;
211	pub const PROTO_ipv6_icmp = 0o072;
212	pub const PROTO_ipv6_nonxt = 0o073;
213	pub const PROTO_ipv6_opts = 0o074;
214	pub const PROTO_rspf = 0o111;
215	pub const PROTO_vmtp = 0o121;
216	pub const PROTO_ospf = 0o131;
217	pub const PROTO_ipip = 0o136;
218	pub const PROTO_encap = 0o142;
219	pub const PROTO_pim = 0o147;
220	pub const PROTO_raw = 0o377;
221
222	pub const PF_UNSPEC = 0;
223	pub const PF_LOCAL = 1;
224	pub const PF_UNIX = PF_LOCAL;
225	pub const PF_FILE = PF_LOCAL;
226	pub const PF_INET = 2;
227	pub const PF_AX25 = 3;
228	pub const PF_IPX = 4;
229	pub const PF_APPLETALK = 5;
230	pub const PF_NETROM = 6;
231	pub const PF_BRIDGE = 7;
232	pub const PF_ATMPVC = 8;
233	pub const PF_X25 = 9;
234	pub const PF_INET6 = 10;
235	pub const PF_ROSE = 11;
236	pub const PF_DECnet = 12;
237	pub const PF_NETBEUI = 13;
238	pub const PF_SECURITY = 14;
239	pub const PF_KEY = 15;
240	pub const PF_NETLINK = 16;
241	pub const PF_ROUTE = PF_NETLINK;
242	pub const PF_PACKET = 17;
243	pub const PF_ASH = 18;
244	pub const PF_ECONET = 19;
245	pub const PF_ATMSVC = 20;
246	pub const PF_RDS = 21;
247	pub const PF_SNA = 22;
248	pub const PF_IRDA = 23;
249	pub const PF_PPPOX = 24;
250	pub const PF_WANPIPE = 25;
251	pub const PF_LLC = 26;
252	pub const PF_IB = 27;
253	pub const PF_MPLS = 28;
254	pub const PF_CAN = 29;
255	pub const PF_TIPC = 30;
256	pub const PF_BLUETOOTH = 31;
257	pub const PF_IUCV = 32;
258	pub const PF_RXRPC = 33;
259	pub const PF_ISDN = 34;
260	pub const PF_PHONET = 35;
261	pub const PF_IEEE802154 = 36;
262	pub const PF_CAIF = 37;
263	pub const PF_ALG = 38;
264	pub const PF_NFC = 39;
265	pub const PF_VSOCK = 40;
266	pub const PF_MAX = 41;
267
268	pub const AF_UNSPEC = PF_UNSPEC;
269	pub const AF_LOCAL = PF_LOCAL;
270	pub const AF_UNIX = AF_LOCAL;
271	pub const AF_FILE = AF_LOCAL;
272	pub const AF_INET = PF_INET;
273	pub const AF_AX25 = PF_AX25;
274	pub const AF_IPX = PF_IPX;
275	pub const AF_APPLETALK = PF_APPLETALK;
276	pub const AF_NETROM = PF_NETROM;
277	pub const AF_BRIDGE = PF_BRIDGE;
278	pub const AF_ATMPVC = PF_ATMPVC;
279	pub const AF_X25 = PF_X25;
280	pub const AF_INET6 = PF_INET6;
281	pub const AF_ROSE = PF_ROSE;
282	pub const AF_DECnet = PF_DECnet;
283	pub const AF_NETBEUI = PF_NETBEUI;
284	pub const AF_SECURITY = PF_SECURITY;
285	pub const AF_KEY = PF_KEY;
286	pub const AF_NETLINK = PF_NETLINK;
287	pub const AF_ROUTE = PF_ROUTE;
288	pub const AF_PACKET = PF_PACKET;
289	pub const AF_ASH = PF_ASH;
290	pub const AF_ECONET = PF_ECONET;
291	pub const AF_ATMSVC = PF_ATMSVC;
292	pub const AF_RDS = PF_RDS;
293	pub const AF_SNA = PF_SNA;
294	pub const AF_IRDA = PF_IRDA;
295	pub const AF_PPPOX = PF_PPPOX;
296	pub const AF_WANPIPE = PF_WANPIPE;
297	pub const AF_LLC = PF_LLC;
298	pub const AF_IB = PF_IB;
299	pub const AF_MPLS = PF_MPLS;
300	pub const AF_CAN = PF_CAN;
301	pub const AF_TIPC = PF_TIPC;
302	pub const AF_BLUETOOTH = PF_BLUETOOTH;
303	pub const AF_IUCV = PF_IUCV;
304	pub const AF_RXRPC = PF_RXRPC;
305	pub const AF_ISDN = PF_ISDN;
306	pub const AF_PHONET = PF_PHONET;
307	pub const AF_IEEE802154 = PF_IEEE802154;
308	pub const AF_CAIF = PF_CAIF;
309	pub const AF_ALG = PF_ALG;
310	pub const AF_NFC = PF_NFC;
311	pub const AF_VSOCK = PF_VSOCK;
312	pub const AF_MAX = PF_MAX;
313
314	pub const DT_UNKNOWN = 0;
315	pub const DT_FIFO = 1;
316	pub const DT_CHR = 2;
317	pub const DT_DIR = 4;
318	pub const DT_BLK = 6;
319	pub const DT_REG = 8;
320	pub const DT_LNK = 10;
321	pub const DT_SOCK = 12;
322	pub const DT_WHT = 14;
323
324	/// add event to kq (implies enable)
325	pub const EV_ADD = 0x0001;
326
327	/// delete event from kq
328	pub const EV_DELETE = 0x0002;
329
330	/// enable event
331	pub const EV_ENABLE = 0x0004;
332
333	/// disable event (not reported)
334	pub const EV_DISABLE = 0x0008;
335
336	/// only report one occurrence
337	pub const EV_ONESHOT = 0x0010;
338
339	/// clear event state after reporting
340	pub const EV_CLEAR = 0x0020;
341
342	/// force immediate event output
343	/// ... with or without EV_ERROR
344	/// ... use KEVENT_FLAG_ERROR_EVENTS
345	/// on syscalls supporting flags
346	pub const EV_RECEIPT = 0x0040;
347
348	/// disable event after reporting
349	pub const EV_DISPATCH = 0x0080;
350
351	pub const EVFILT_READ = -1;
352	pub const EVFILT_WRITE = -2;
353
354	/// attached to aio requests
355	pub const EVFILT_AIO = -3;
356
357	/// attached to vnodes
358	pub const EVFILT_VNODE = -4;
359
360	/// attached to struct proc
361	pub const EVFILT_PROC = -5;
362
363	/// attached to struct proc
364	pub const EVFILT_SIGNAL = -6;
365
366	/// timers
367	pub const EVFILT_TIMER = -7;
368
369	/// Process descriptors
370	pub const EVFILT_PROCDESC = -8;
371
372	/// Filesystem events
373	pub const EVFILT_FS = -9;
374
375	pub const EVFILT_LIO = -10;
376
377	/// User events
378	pub const EVFILT_USER = -11;
379
380	/// Sendfile events
381	pub const EVFILT_SENDFILE = -12;
382
383	pub const EVFILT_EMPTY = -13;
384
385	/// On input, NOTE_TRIGGER causes the event to be triggered for output.
386	pub const NOTE_TRIGGER = 0x01000000;
387
388	/// ignore input fflags
389	pub const NOTE_FFNOP = 0x00000000;
390
391	/// and fflags
392	pub const NOTE_FFAND = 0x40000000;
393
394	/// or fflags
395	pub const NOTE_FFOR = 0x80000000;
396
397	/// copy fflags
398	pub const NOTE_FFCOPY = 0xc0000000;
399
400	/// mask for operations
401	pub const NOTE_FFCTRLMASK = 0xc0000000;
402	pub const NOTE_FFLAGSMASK = 0x00ffffff;
403
404	/// low water mark
405	pub const NOTE_LOWAT = 0x00000001;
406
407	/// behave like poll()
408	pub const NOTE_FILE_POLL = 0x00000002;
409
410	/// vnode was removed
411	pub const NOTE_DELETE = 0x00000001;
412
413	/// data contents changed
414	pub const NOTE_WRITE = 0x00000002;
415
416	/// size increased
417	pub const NOTE_EXTEND = 0x00000004;
418
419	/// attributes changed
420	pub const NOTE_ATTRIB = 0x00000008;
421
422	/// link count changed
423	pub const NOTE_LINK = 0x00000010;
424
425	/// vnode was renamed
426	pub const NOTE_RENAME = 0x00000020;
427
428	/// vnode access was revoked
429	pub const NOTE_REVOKE = 0x00000040;
430
431	/// vnode was opened
432	pub const NOTE_OPEN = 0x00000080;
433
434	/// file closed, fd did not allow write
435	pub const NOTE_CLOSE = 0x00000100;
436
437	/// file closed, fd did allow write
438	pub const NOTE_CLOSE_WRITE = 0x00000200;
439
440	/// file was read
441	pub const NOTE_READ = 0x00000400;
442
443	/// process exited
444	pub const NOTE_EXIT = 0x80000000;
445
446	/// process forked
447	pub const NOTE_FORK = 0x40000000;
448
449	/// process exec'd
450	pub const NOTE_EXEC = 0x20000000;
451
452	/// mask for signal & exit status
453	pub const NOTE_PDATAMASK = 0x000fffff;
454	pub const NOTE_PCTRLMASK = (~NOTE_PDATAMASK);
455
456	/// data is seconds
457	pub const NOTE_SECONDS = 0x00000001;
458
459	/// data is milliseconds
460	pub const NOTE_MSECONDS = 0x00000002;
461
462	/// data is microseconds
463	pub const NOTE_USECONDS = 0x00000004;
464
465	/// data is nanoseconds
466	pub const NOTE_NSECONDS = 0x00000008;
467
468	/// timeout is absolute
469	pub const NOTE_ABSTIME = 0x00000010;
470
471	pub const TCGETS = 0x5401;
472	pub const TCSETS = 0x5402;
473	pub const TCSETSW = 0x5403;
474	pub const TCSETSF = 0x5404;
475	pub const TCGETA = 0x5405;
476	pub const TCSETA = 0x5406;
477	pub const TCSETAW = 0x5407;
478	pub const TCSETAF = 0x5408;
479	pub const TCSBRK = 0x5409;
480	pub const TCXONC = 0x540A;
481	pub const TCFLSH = 0x540B;
482	pub const TIOCEXCL = 0x540C;
483	pub const TIOCNXCL = 0x540D;
484	pub const TIOCSCTTY = 0x540E;
485	pub const TIOCGPGRP = 0x540F;
486	pub const TIOCSPGRP = 0x5410;
487	pub const TIOCOUTQ = 0x5411;
488	pub const TIOCSTI = 0x5412;
489	pub const TIOCGWINSZ = 0x5413;
490	pub const TIOCSWINSZ = 0x5414;
491	pub const TIOCMGET = 0x5415;
492	pub const TIOCMBIS = 0x5416;
493	pub const TIOCMBIC = 0x5417;
494	pub const TIOCMSET = 0x5418;
495	pub const TIOCGSOFTCAR = 0x5419;
496	pub const TIOCSSOFTCAR = 0x541A;
497	pub const FIONREAD = 0x541B;
498	pub const TIOCINQ = FIONREAD;
499	pub const TIOCLINUX = 0x541C;
500	pub const TIOCCONS = 0x541D;
501	pub const TIOCGSERIAL = 0x541E;
502	pub const TIOCSSERIAL = 0x541F;
503	pub const TIOCPKT = 0x5420;
504	pub const FIONBIO = 0x5421;
505	pub const TIOCNOTTY = 0x5422;
506	pub const TIOCSETD = 0x5423;
507	pub const TIOCGETD = 0x5424;
508	pub const TCSBRKP = 0x5425;
509	pub const TIOCSBRK = 0x5427;
510	pub const TIOCCBRK = 0x5428;
511	pub const TIOCGSID = 0x5429;
512	pub const TIOCGRS485 = 0x542E;
513	pub const TIOCSRS485 = 0x542F;
514	pub const TIOCGPTN = 0x80045430;
515	pub const TIOCSPTLCK = 0x40045431;
516	pub const TIOCGDEV = 0x80045432;
517	pub const TCGETX = 0x5432;
518	pub const TCSETX = 0x5433;
519	pub const TCSETXF = 0x5434;
520	pub const TCSETXW = 0x5435;
521	pub const TIOCSIG = 0x40045436;
522	pub const TIOCVHANGUP = 0x5437;
523	pub const TIOCGPKT = 0x80045438;
524	pub const TIOCGPTLCK = 0x80045439;
525	pub const TIOCGEXCL = 0x80045440;
526
527	pub const sockaddr = c.sockaddr;
528	pub const sockaddr_in = c.sockaddr_in;
529	pub const sockaddr_in6 = c.sockaddr_in6;
530
531	fn unsigned(s: i32) u32 {
532	return @bitCast(u32, s);
533	}
534	fn signed(s: u32) i32 {
535	return @bitCast(i32, s);
536	}
537	pub fn WEXITSTATUS(s: i32) i32 {
538	return signed((unsigned(s) & 0xff00) >> 8);
539	}
540	pub fn WTERMSIG(s: i32) i32 {
541	return signed(unsigned(s) & 0x7f);
542	}
543	pub fn WSTOPSIG(s: i32) i32 {
544	return WEXITSTATUS(s);
545	}
546	pub fn WIFEXITED(s: i32) bool {
547	return WTERMSIG(s) == 0;
548	}
549	pub fn WIFSTOPPED(s: i32) bool {
550	return @intCast(u16, (((unsigned(s) & 0xffff) *% 0x10001) >> 8)) > 0x7f00;
551	}
552	pub fn WIFSIGNALED(s: i32) bool {
553	return (unsigned(s) & 0xffff) -% 1 < 0xff;
554	}
555
556	pub const winsize = extern struct {
557	ws_row: u16,
558	ws_col: u16,
559	ws_xpixel: u16,
560	ws_ypixel: u16,
561	};
562
563	/// Get the errno from a syscall return value, or 0 for no error.
564	pub fn getErrno(r: usize) usize {
565	const signed_r = @bitCast(isize, r);
566	return if (signed_r > -4096 and signed_r < 0) @intCast(usize, -signed_r) else 0;
567	}
568
569	pub fn dup2(old: i32, new: i32) usize {
570	return errnoWrap(c.dup2(old, new));
571	}
572
573	pub fn chdir(path: [*]const u8) usize {
574	return errnoWrap(c.chdir(path));
575	}
576
577	pub fn execve(path: []const u8, argv: []const ?[]const u8, envp: []const ?[*]const u8) usize {
578	return errnoWrap(c.execve(path, argv, envp));
579	}
580
581	pub fn fork() usize {
582	return errnoWrap(c.fork());
583	}
584
585	pub fn access(path: [*]const u8, mode: u32) usize {
586	return errnoWrap(c.access(path, mode));
587	}
588
589	pub fn getcwd(buf: [*]u8, size: usize) usize {
590	return if (c.getcwd(buf, size) == null) @bitCast(usize, -isize(c._errno().*)) else 0;
591	}
592
593	pub fn getdents(fd: i32, dirp: [*]u8, count: usize) usize {
594	return errnoWrap(@bitCast(isize, c.getdents(fd, drip, count)));
595	}
596
597	pub fn getdirentries(fd: i32, buf_ptr: []u8, buf_len: usize, basep: i64) usize {
598	return errnoWrap(@bitCast(isize, c.getdirentries(fd, buf_ptr, buf_len, basep)));
599	}
600
601	pub fn realpath(noalias filename: []const u8, noalias resolved_name: []u8) usize {
602	return if (c.realpath(filename, resolved_name) == null) @bitCast(usize, -isize(c._errno().*)) else 0;
603	}
604
605	pub fn isatty(fd: i32) bool {
606	return c.isatty(fd) != 0;
607	}
608
609	pub fn readlink(noalias path: []const u8, noalias buf_ptr: []u8, buf_len: usize) usize {
610	return errnoWrap(c.readlink(path, buf_ptr, buf_len));
611	}
612
613	pub fn mkdir(path: [*]const u8, mode: u32) usize {
614	return errnoWrap(c.mkdir(path, mode));
615	}
616
617	pub fn mmap(address: ?[*]u8, length: usize, prot: usize, flags: u32, fd: i32, offset: isize) usize {
618	const ptr_result = c.mmap(
619	@ptrCast(?*c_void, address),
620	length,
621	@bitCast(c_int, @intCast(c_uint, prot)),
622	@bitCast(c_int, c_uint(flags)),
623	fd,
624	offset,
625	);
626	const isize_result = @bitCast(isize, @ptrToInt(ptr_result));
627	return errnoWrap(isize_result);
628	}
629
630	pub fn munmap(address: usize, length: usize) usize {
631	return errnoWrap(c.munmap(@intToPtr(?*c_void, address), length));
632	}
633
634	pub fn read(fd: i32, buf: [*]u8, nbyte: usize) usize {
635	return errnoWrap(c.read(fd, @ptrCast(*c_void, buf), nbyte));
636	}
637
638	pub fn rmdir(path: [*]const u8) usize {
639	return errnoWrap(c.rmdir(path));
640	}
641
642	pub fn symlink(existing: []const u8, new: []const u8) usize {
643	return errnoWrap(c.symlink(existing, new));
644	}
645
646	pub fn pread(fd: i32, buf: [*]u8, nbyte: usize, offset: u64) usize {
647	return errnoWrap(c.pread(fd, @ptrCast(*c_void, buf), nbyte, offset));
648	}
649
650	pub fn preadv(fd: i32, iov: [*]const iovec, count: usize, offset: usize) usize {
651	return errnoWrap(c.preadv(fd, @ptrCast(*const c_void, iov), @intCast(c_int, count), offset));
652	}
653
654	pub fn pipe(fd: *[2]i32) usize {
655	return pipe2(fd, 0);
656	}
657
658	pub fn pipe2(fd: *[2]i32, flags: u32) usize {
659	comptime assert(i32.bit_count == c_int.bit_count);
660	return errnoWrap(c.pipe2(@ptrCast(*[2]c_int, fd), flags));
661	}
662
663	pub fn write(fd: i32, buf: [*]const u8, nbyte: usize) usize {
664	return errnoWrap(c.write(fd, @ptrCast(*const c_void, buf), nbyte));
665	}
666
667	pub fn pwrite(fd: i32, buf: [*]const u8, nbyte: usize, offset: u64) usize {
668	return errnoWrap(c.pwrite(fd, @ptrCast(*const c_void, buf), nbyte, offset));
669	}
670
671	pub fn pwritev(fd: i32, iov: [*]const iovec_const, count: usize, offset: usize) usize {
672	return errnoWrap(c.pwritev(fd, @ptrCast(*const c_void, iov), @intCast(c_int, count), offset));
673	}
674
675	pub fn rename(old: []const u8, new: []const u8) usize {
676	return errnoWrap(c.rename(old, new));
677	}
678
679	pub fn open(path: [*]const u8, flags: u32, mode: usize) usize {
680	return errnoWrap(c.open(path, @bitCast(c_int, flags), mode));
681	}
682
683	pub fn create(path: [*]const u8, perm: usize) usize {
684	return arch.syscall2(SYS_creat, @ptrToInt(path), perm);
685	}
686
687	pub fn openat(dirfd: i32, path: [*]const u8, flags: usize, mode: usize) usize {
688	return errnoWrap(c.openat(@bitCast(usize, isize(dirfd)), @ptrToInt(path), flags, mode));
689	}
690
691	pub fn close(fd: i32) usize {
692	return errnoWrap(c.close(fd));
693	}
694
695	pub fn lseek(fd: i32, offset: isize, whence: c_int) usize {
696	return errnoWrap(c.lseek(fd, offset, whence));
697	}
698
699	pub fn exit(code: i32) noreturn {
700	c.exit(code);
701	}
702
703	pub fn kill(pid: i32, sig: i32) usize {
704	return errnoWrap(c.kill(pid, sig));
705	}
706
707	pub fn unlink(path: [*]const u8) usize {
708	return errnoWrap(c.unlink(path));
709	}
710
711	pub fn waitpid(pid: i32, status: *i32, options: u32) usize {
712	comptime assert(i32.bit_count == c_int.bit_count);
713	return errnoWrap(c.waitpid(pid, @ptrCast(*c_int, status), @bitCast(c_int, options)));
714	}
715
716	pub fn nanosleep(req: const timespec, rem: ?timespec) usize {
717	return errnoWrap(c.nanosleep(req, rem));
718	}
719
720	pub fn clock_gettime(clk_id: i32, tp: *timespec) usize {
721	return errnoWrap(c.clock_gettime(clk_id, tp));
722	}
723
724	pub fn clock_getres(clk_id: i32, tp: *timespec) usize {
725	return errnoWrap(c.clock_getres(clk_id, tp));
726	}
727
728	pub fn setuid(uid: u32) usize {
729	return errnoWrap(c.setuid(uid));
730	}
731
732	pub fn setgid(gid: u32) usize {
733	return errnoWrap(c.setgid(gid));
734	}
735
736	pub fn setreuid(ruid: u32, euid: u32) usize {
737	return errnoWrap(c.setreuid(ruid, euid));
738	}
739
740	pub fn setregid(rgid: u32, egid: u32) usize {
741	return errnoWrap(c.setregid(rgid, egid));
742	}
743
744	const NSIG = 32;
745
746	pub const SIG_ERR = @intToPtr(extern fn (i32) void, maxInt(usize));
747	pub const SIG_DFL = @intToPtr(extern fn (i32) void, 0);
748	pub const SIG_IGN = @intToPtr(extern fn (i32) void, 1);
749
750	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
751	pub const Sigaction = extern struct {
752	/// signal handler
753	__sigaction_u: extern union {
754	__sa_handler: extern fn (i32) void,
755	__sa_sigaction: extern fn (i32, *__siginfo, usize) void,
756	},
757
758	/// see signal options
759	sa_flags: u32,
760
761	/// signal mask to apply
762	sa_mask: sigset_t,
763	};
764
765	pub const _SIG_WORDS = 4;
766	pub const _SIG_MAXSIG = 128;
767
768	pub inline fn _SIG_IDX(sig: usize) usize {
769	return sig - 1;
770	}
771	pub inline fn _SIG_WORD(sig: usize) usize {
772	return_SIG_IDX(sig) >> 5;
773	}
774	pub inline fn _SIG_BIT(sig: usize) usize {
775	return 1 << (_SIG_IDX(sig) & 31);
776	}
777	pub inline fn _SIG_VALID(sig: usize) usize {
778	return sig <= _SIG_MAXSIG and sig > 0;
779	}
780
781	pub const sigset_t = extern struct {
782	__bits: [_SIG_WORDS]u32,
783	};
784
785	pub fn raise(sig: i32) usize {
786	return errnoWrap(c.raise(sig));
787	}
788
789	pub const Stat = c.Stat;
790	pub const dirent = c.dirent;
791	pub const timespec = c.timespec;
792
793	pub fn fstat(fd: i32, buf: *c.Stat) usize {
794	return errnoWrap(c.fstat(fd, buf));
795	}
796	pub const iovec = extern struct {
797	iov_base: [*]u8,
798	iov_len: usize,
799	};
800
801	pub const iovec_const = extern struct {
802	iov_base: [*]const u8,
803	iov_len: usize,
804	};
805
806	// TODO avoid libc dependency
807	pub fn kqueue() usize {
808	return errnoWrap(c.kqueue());
809	}
810
811	// TODO avoid libc dependency
812	pub fn kevent(kq: i32, changelist: []const Kevent, eventlist: []Kevent, timeout: ?*const timespec) usize {
813	return errnoWrap(c.kevent(
814	kq,
815	changelist.ptr,
816	@intCast(c_int, changelist.len),
817	eventlist.ptr,
818	@intCast(c_int, eventlist.len),
819	timeout,
820	));
821	}
822
823	// TODO avoid libc dependency
824	pub fn sysctl(name: []c_int, namelen: c_uint, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) usize {
825	return errnoWrap(c.sysctl(name, namelen, oldp, oldlenp, newp, newlen));
826	}
827
828	// TODO avoid libc dependency
829	pub fn sysctlbyname(name: []const u8, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) usize {
830	return errnoWrap(c.sysctlbyname(name, oldp, oldlenp, newp, newlen));
831	}
832
833	// TODO avoid libc dependency
834	pub fn sysctlnametomib(name: []const u8, mibp: ?c_int, sizep: ?*usize) usize {
835	return errnoWrap(c.sysctlnametomib(name, wibp, sizep));
836	}
837
838	// TODO avoid libc dependency
839
840	/// Takes the return value from a syscall and formats it back in the way
841	/// that the kernel represents it to libc. Errno was a mistake, let's make
842	/// it go away forever.
843	fn errnoWrap(value: isize) usize {
844	return @bitCast(usize, if (value == -1) -isize(c._errno().*) else value);
845	}

std/os/freebsd/errno.zig deleted-121

...	@@ -1,121 +0,0 @@
1	pub const EPERM = 1; // Operation not permitted
2	pub const ENOENT = 2; // No such file or directory
3	pub const ESRCH = 3; // No such process
4	pub const EINTR = 4; // Interrupted system call
5	pub const EIO = 5; // Input/output error
6	pub const ENXIO = 6; // Device not configured
7	pub const E2BIG = 7; // Argument list too long
8	pub const ENOEXEC = 8; // Exec format error
9	pub const EBADF = 9; // Bad file descriptor
10	pub const ECHILD = 10; // No child processes
11	pub const EDEADLK = 11; // Resource deadlock avoided
12	// 11 was EAGAIN
13	pub const ENOMEM = 12; // Cannot allocate memory
14	pub const EACCES = 13; // Permission denied
15	pub const EFAULT = 14; // Bad address
16	pub const ENOTBLK = 15; // Block device required
17	pub const EBUSY = 16; // Device busy
18	pub const EEXIST = 17; // File exists
19	pub const EXDEV = 18; // Cross-device link
20	pub const ENODEV = 19; // Operation not supported by device
21	pub const ENOTDIR = 20; // Not a directory
22	pub const EISDIR = 21; // Is a directory
23	pub const EINVAL = 22; // Invalid argument
24	pub const ENFILE = 23; // Too many open files in system
25	pub const EMFILE = 24; // Too many open files
26	pub const ENOTTY = 25; // Inappropriate ioctl for device
27	pub const ETXTBSY = 26; // Text file busy
28	pub const EFBIG = 27; // File too large
29	pub const ENOSPC = 28; // No space left on device
30	pub const ESPIPE = 29; // Illegal seek
31	pub const EROFS = 30; // Read-only filesystem
32	pub const EMLINK = 31; // Too many links
33	pub const EPIPE = 32; // Broken pipe
34
35	// math software
36	pub const EDOM = 33; // Numerical argument out of domain
37	pub const ERANGE = 34; // Result too large
38
39	// non-blocking and interrupt i/o
40	pub const EAGAIN = 35; // Resource temporarily unavailable
41	pub const EWOULDBLOCK = EAGAIN; // Operation would block
42	pub const EINPROGRESS = 36; // Operation now in progress
43	pub const EALREADY = 37; // Operation already in progress
44
45	// ipc/network software -- argument errors
46	pub const ENOTSOCK = 38; // Socket operation on non-socket
47	pub const EDESTADDRREQ = 39; // Destination address required
48	pub const EMSGSIZE = 40; // Message too long
49	pub const EPROTOTYPE = 41; // Protocol wrong type for socket
50	pub const ENOPROTOOPT = 42; // Protocol not available
51	pub const EPROTONOSUPPORT = 43; // Protocol not supported
52	pub const ESOCKTNOSUPPORT = 44; // Socket type not supported
53	pub const EOPNOTSUPP = 45; // Operation not supported
54	pub const ENOTSUP = EOPNOTSUPP; // Operation not supported
55	pub const EPFNOSUPPORT = 46; // Protocol family not supported
56	pub const EAFNOSUPPORT = 47; // Address family not supported by protocol family
57	pub const EADDRINUSE = 48; // Address already in use
58	pub const EADDRNOTAVAIL = 49; // Can't assign requested address
59
60	// ipc/network software -- operational errors
61	pub const ENETDOWN = 50; // Network is down
62	pub const ENETUNREACH = 51; // Network is unreachable
63	pub const ENETRESET = 52; // Network dropped connection on reset
64	pub const ECONNABORTED = 53; // Software caused connection abort
65	pub const ECONNRESET = 54; // Connection reset by peer
66	pub const ENOBUFS = 55; // No buffer space available
67	pub const EISCONN = 56; // Socket is already connected
68	pub const ENOTCONN = 57; // Socket is not connected
69	pub const ESHUTDOWN = 58; // Can't send after socket shutdown
70	pub const ETOOMANYREFS = 59; // Too many references: can't splice
71	pub const ETIMEDOUT = 60; // Operation timed out
72	pub const ECONNREFUSED = 61; // Connection refused
73
74	pub const ELOOP = 62; // Too many levels of symbolic links
75	pub const ENAMETOOLONG = 63; // File name too long
76
77	// should be rearranged
78	pub const EHOSTDOWN = 64; // Host is down
79	pub const EHOSTUNREACH = 65; // No route to host
80	pub const ENOTEMPTY = 66; // Directory not empty
81
82	// quotas & mush
83	pub const EPROCLIM = 67; // Too many processes
84	pub const EUSERS = 68; // Too many users
85	pub const EDQUOT = 69; // Disc quota exceeded
86
87	// Network File System
88	pub const ESTALE = 70; // Stale NFS file handle
89	pub const EREMOTE = 71; // Too many levels of remote in path
90	pub const EBADRPC = 72; // RPC struct is bad
91	pub const ERPCMISMATCH = 73; // RPC version wrong
92	pub const EPROGUNAVAIL = 74; // RPC prog. not avail
93	pub const EPROGMISMATCH = 75; // Program version wrong
94	pub const EPROCUNAVAIL = 76; // Bad procedure for program
95
96	pub const ENOLCK = 77; // No locks available
97	pub const ENOSYS = 78; // Function not implemented
98
99	pub const EFTYPE = 79; // Inappropriate file type or format
100	pub const EAUTH = 80; // Authentication error
101	pub const ENEEDAUTH = 81; // Need authenticator
102	pub const EIDRM = 82; // Identifier removed
103	pub const ENOMSG = 83; // No message of desired type
104	pub const EOVERFLOW = 84; // Value too large to be stored in data type
105	pub const ECANCELED = 85; // Operation canceled
106	pub const EILSEQ = 86; // Illegal byte sequence
107	pub const ENOATTR = 87; // Attribute not found
108
109	pub const EDOOFUS = 88; // Programming error
110
111	pub const EBADMSG = 89; // Bad message
112	pub const EMULTIHOP = 90; // Multihop attempted
113	pub const ENOLINK = 91; // Link has been severed
114	pub const EPROTO = 92; // Protocol error
115
116	pub const ENOTCAPABLE = 93; // Capabilities insufficient
117	pub const ECAPMODE = 94; // Not permitted in capability mode
118	pub const ENOTRECOVERABLE = 95; // State not recoverable
119	pub const EOWNERDEAD = 96; // Previous owner died
120
121	pub const ELAST = 96; // Must be equal largest errno

std/os/get_app_data_dir.zig deleted-69

...	@@ -1,69 +0,0 @@
1	const std = @import("../std.zig");
2	const builtin = @import("builtin");
3	const unicode = std.unicode;
4	const mem = std.mem;
5	const os = std.os;
6
7	pub const GetAppDataDirError = error{
8	OutOfMemory,
9	AppDataDirUnavailable,
10	};
11
12	/// Caller owns returned memory.
13	/// TODO determine if we can remove the allocator requirement
14	pub fn getAppDataDir(allocator: *mem.Allocator, appname: []const u8) GetAppDataDirError![]u8 {
15	switch (builtin.os) {
16	builtin.Os.windows => {
17	var dir_path_ptr: [*]u16 = undefined;
18	switch (os.windows.SHGetKnownFolderPath(
19	&os.windows.FOLDERID_LocalAppData,
20	os.windows.KF_FLAG_CREATE,
21	null,
22	&dir_path_ptr,
23	)) {
24	os.windows.S_OK => {
25	defer os.windows.CoTaskMemFree(@ptrCast(*c_void, dir_path_ptr));
26	const global_dir = unicode.utf16leToUtf8Alloc(allocator, utf16lePtrSlice(dir_path_ptr)) catch \|err\| switch (err) {
27	error.UnexpectedSecondSurrogateHalf => return error.AppDataDirUnavailable,
28	error.ExpectedSecondSurrogateHalf => return error.AppDataDirUnavailable,
29	error.DanglingSurrogateHalf => return error.AppDataDirUnavailable,
30	error.OutOfMemory => return error.OutOfMemory,
31	};
32	defer allocator.free(global_dir);
33	return os.path.join(allocator, [][]const u8{ global_dir, appname });
34	},
35	os.windows.E_OUTOFMEMORY => return error.OutOfMemory,
36	else => return error.AppDataDirUnavailable,
37	}
38	},
39	builtin.Os.macosx => {
40	const home_dir = os.getEnvPosix("HOME") orelse {
41	// TODO look in /etc/passwd
42	return error.AppDataDirUnavailable;
43	};
44	return os.path.join(allocator, [][]const u8{ home_dir, "Library", "Application Support", appname });
45	},
46	builtin.Os.linux, builtin.Os.freebsd, builtin.Os.netbsd => {
47	const home_dir = os.getEnvPosix("HOME") orelse {
48	// TODO look in /etc/passwd
49	return error.AppDataDirUnavailable;
50	};
51	return os.path.join(allocator, [][]const u8{ home_dir, ".local", "share", appname });
52	},
53	else => @compileError("Unsupported OS"),
54	}
55	}
56
57	fn utf16lePtrSlice(ptr: [*]const u16) []const u16 {
58	var index: usize = 0;
59	while (ptr[index] != 0) : (index += 1) {}
60	return ptr[0..index];
61	}
62
63	test "std.os.getAppDataDir" {
64	var buf: [512]u8 = undefined;
65	const allocator = &std.heap.FixedBufferAllocator.init(buf[0..]).allocator;
66
67	// We can't actually validate the result
68	_ = getAppDataDir(allocator, "zig") catch return;
69	}

std/os/get_user_id.zig deleted-104

...	@@ -1,104 +0,0 @@
1	const builtin = @import("builtin");
2	const Os = builtin.Os;
3	const os = @import("../os.zig");
4	const io = @import("../io.zig");
5
6	pub const UserInfo = struct {
7	uid: u32,
8	gid: u32,
9	};
10
11	/// POSIX function which gets a uid from username.
12	pub fn getUserInfo(name: []const u8) !UserInfo {
13	return switch (builtin.os) {
14	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => posixGetUserInfo(name),
15	else => @compileError("Unsupported OS"),
16	};
17	}
18
19	const State = enum {
20	Start,
21	WaitForNextLine,
22	SkipPassword,
23	ReadUserId,
24	ReadGroupId,
25	};
26
27	// TODO this reads /etc/passwd. But sometimes the user/id mapping is in something else
28	// like NIS, AD, etc. See `man nss` or look at an strace for `id myuser`.
29
30	pub fn posixGetUserInfo(name: []const u8) !UserInfo {
31	var in_stream = try io.InStream.open("/etc/passwd", null);
32	defer in_stream.close();
33
34	var buf: [os.page_size]u8 = undefined;
35	var name_index: usize = 0;
36	var state = State.Start;
37	var uid: u32 = 0;
38	var gid: u32 = 0;
39
40	while (true) {
41	const amt_read = try in_stream.read(buf[0..]);
42	for (buf[0..amt_read]) \|byte\| {
43	switch (state) {
44	State.Start => switch (byte) {
45	':' => {
46	state = if (name_index == name.len) State.SkipPassword else State.WaitForNextLine;
47	},
48	'\n' => return error.CorruptPasswordFile,
49	else => {
50	if (name_index == name.len or name[name_index] != byte) {
51	state = State.WaitForNextLine;
52	}
53	name_index += 1;
54	},
55	},
56	State.WaitForNextLine => switch (byte) {
57	'\n' => {
58	name_index = 0;
59	state = State.Start;
60	},
61	else => continue,
62	},
63	State.SkipPassword => switch (byte) {
64	'\n' => return error.CorruptPasswordFile,
65	':' => {
66	state = State.ReadUserId;
67	},
68	else => continue,
69	},
70	State.ReadUserId => switch (byte) {
71	':' => {
72	state = State.ReadGroupId;
73	},
74	'\n' => return error.CorruptPasswordFile,
75	else => {
76	const digit = switch (byte) {
77	'0'...'9' => byte - '0',
78	else => return error.CorruptPasswordFile,
79	};
80	if (@mulWithOverflow(u32, uid, 10, *uid)) return error.CorruptPasswordFile;
81	if (@addWithOverflow(u32, uid, digit, *uid)) return error.CorruptPasswordFile;
82	},
83	},
84	State.ReadGroupId => switch (byte) {
85	'\n', ':' => {
86	return UserInfo{
87	.uid = uid,
88	.gid = gid,
89	};
90	},
91	else => {
92	const digit = switch (byte) {
93	'0'...'9' => byte - '0',
94	else => return error.CorruptPasswordFile,
95	};
96	if (@mulWithOverflow(u32, gid, 10, *gid)) return error.CorruptPasswordFile;
97	if (@addWithOverflow(u32, gid, digit, *gid)) return error.CorruptPasswordFile;
98	},
99	},
100	}
101	}
102	if (amt_read < buf.len) return error.UserNotFound;
103	}
104	}

std/os/linux.zig+159-955

...	@@ -1,709 +1,61 @@	...	@@ -1,709 +1,61 @@
		1	// This file provides the system interface functions for Linux matching those
		2	// that are provided by libc, whether or not libc is linked. The following
		3	// abstractions are made:
		4	// * Work around kernel bugs and limitations. For example, see sendmmsg.
		5	// * Implement all the syscalls in the same way that libc functions will
		6	// provide `rename` when only the `renameat` syscall exists.
		7	// * Does not support POSIX thread cancellation.
1	const std = @import("../std.zig");	8	const std = @import("../std.zig");
2	const assert = std.debug.assert;
3	const builtin = @import("builtin");	9	const builtin = @import("builtin");
		10	const assert = std.debug.assert;
4	const maxInt = std.math.maxInt;	11	const maxInt = std.math.maxInt;
5	const elf = std.elf;	12	const elf = std.elf;
6	pub const tls = @import("linux/tls.zig");
7	const vdso = @import("linux/vdso.zig");	13	const vdso = @import("linux/vdso.zig");
8	const dl = @import("../dynamic_library.zig");	14	const dl = @import("../dynamic_library.zig");
		15
		16	pub const is_the_target = builtin.os == .linux;
9	pub use switch (builtin.arch) {	17	pub use switch (builtin.arch) {
10	builtin.Arch.x86_64 => @import("linux/x86_64.zig"),	18	.x86_64 => @import("linux/x86_64.zig"),
11	builtin.Arch.i386 => @import("linux/i386.zig"),	19	.aarch64 => @import("linux/arm64.zig"),
12	builtin.Arch.aarch64 => @import("linux/arm64.zig"),	20	else => struct {},
13	else => @compileError("unsupported arch"),
14	};	21	};
15	pub use @import("linux/errno.zig");	22	pub use @import("bits.zig");
16		23	pub const tls = @import("linux/tls.zig");
17	pub const PATH_MAX = 4096;
18	pub const IOV_MAX = 1024;
19
20	pub const STDIN_FILENO = 0;
21	pub const STDOUT_FILENO = 1;
22	pub const STDERR_FILENO = 2;
23
24	pub const FUTEX_WAIT = 0;
25	pub const FUTEX_WAKE = 1;
26	pub const FUTEX_FD = 2;
27	pub const FUTEX_REQUEUE = 3;
28	pub const FUTEX_CMP_REQUEUE = 4;
29	pub const FUTEX_WAKE_OP = 5;
30	pub const FUTEX_LOCK_PI = 6;
31	pub const FUTEX_UNLOCK_PI = 7;
32	pub const FUTEX_TRYLOCK_PI = 8;
33	pub const FUTEX_WAIT_BITSET = 9;
34
35	pub const FUTEX_PRIVATE_FLAG = 128;
36
37	pub const FUTEX_CLOCK_REALTIME = 256;
38
39	pub const PROT_NONE = 0;
40	pub const PROT_READ = 1;
41	pub const PROT_WRITE = 2;
42	pub const PROT_EXEC = 4;
43	pub const PROT_GROWSDOWN = 0x01000000;
44	pub const PROT_GROWSUP = 0x02000000;
45
46	pub const MAP_FAILED = maxInt(usize);
47	pub const MAP_SHARED = 0x01;
48	pub const MAP_PRIVATE = 0x02;
49	pub const MAP_TYPE = 0x0f;
50	pub const MAP_FIXED = 0x10;
51	pub const MAP_ANONYMOUS = 0x20;
52	pub const MAP_NORESERVE = 0x4000;
53	pub const MAP_GROWSDOWN = 0x0100;
54	pub const MAP_DENYWRITE = 0x0800;
55	pub const MAP_EXECUTABLE = 0x1000;
56	pub const MAP_LOCKED = 0x2000;
57	pub const MAP_POPULATE = 0x8000;
58	pub const MAP_NONBLOCK = 0x10000;
59	pub const MAP_STACK = 0x20000;
60	pub const MAP_HUGETLB = 0x40000;
61	pub const MAP_FILE = 0;
62
63	pub const F_OK = 0;
64	pub const X_OK = 1;
65	pub const W_OK = 2;
66	pub const R_OK = 4;
67
68	pub const WNOHANG = 1;
69	pub const WUNTRACED = 2;
70	pub const WSTOPPED = 2;
71	pub const WEXITED = 4;
72	pub const WCONTINUED = 8;
73	pub const WNOWAIT = 0x1000000;
74
75	pub const SA_NOCLDSTOP = 1;
76	pub const SA_NOCLDWAIT = 2;
77	pub const SA_SIGINFO = 4;
78	pub const SA_ONSTACK = 0x08000000;
79	pub const SA_RESTART = 0x10000000;
80	pub const SA_NODEFER = 0x40000000;
81	pub const SA_RESETHAND = 0x80000000;
82	pub const SA_RESTORER = 0x04000000;
83
84	pub const SIGHUP = 1;
85	pub const SIGINT = 2;
86	pub const SIGQUIT = 3;
87	pub const SIGILL = 4;
88	pub const SIGTRAP = 5;
89	pub const SIGABRT = 6;
90	pub const SIGIOT = SIGABRT;
91	pub const SIGBUS = 7;
92	pub const SIGFPE = 8;
93	pub const SIGKILL = 9;
94	pub const SIGUSR1 = 10;
95	pub const SIGSEGV = 11;
96	pub const SIGUSR2 = 12;
97	pub const SIGPIPE = 13;
98	pub const SIGALRM = 14;
99	pub const SIGTERM = 15;
100	pub const SIGSTKFLT = 16;
101	pub const SIGCHLD = 17;
102	pub const SIGCONT = 18;
103	pub const SIGSTOP = 19;
104	pub const SIGTSTP = 20;
105	pub const SIGTTIN = 21;
106	pub const SIGTTOU = 22;
107	pub const SIGURG = 23;
108	pub const SIGXCPU = 24;
109	pub const SIGXFSZ = 25;
110	pub const SIGVTALRM = 26;
111	pub const SIGPROF = 27;
112	pub const SIGWINCH = 28;
113	pub const SIGIO = 29;
114	pub const SIGPOLL = 29;
115	pub const SIGPWR = 30;
116	pub const SIGSYS = 31;
117	pub const SIGUNUSED = SIGSYS;
118
119	pub const O_RDONLY = 0o0;
120	pub const O_WRONLY = 0o1;
121	pub const O_RDWR = 0o2;
122
123	pub const SEEK_SET = 0;
124	pub const SEEK_CUR = 1;
125	pub const SEEK_END = 2;
126
127	pub const SIG_BLOCK = 0;
128	pub const SIG_UNBLOCK = 1;
129	pub const SIG_SETMASK = 2;
130
131	pub const PROTO_ip = 0o000;
132	pub const PROTO_icmp = 0o001;
133	pub const PROTO_igmp = 0o002;
134	pub const PROTO_ggp = 0o003;
135	pub const PROTO_ipencap = 0o004;
136	pub const PROTO_st = 0o005;
137	pub const PROTO_tcp = 0o006;
138	pub const PROTO_egp = 0o010;
139	pub const PROTO_pup = 0o014;
140	pub const PROTO_udp = 0o021;
141	pub const PROTO_hmp = 0o024;
142	pub const PROTO_xns_idp = 0o026;
143	pub const PROTO_rdp = 0o033;
144	pub const PROTO_iso_tp4 = 0o035;
145	pub const PROTO_xtp = 0o044;
146	pub const PROTO_ddp = 0o045;
147	pub const PROTO_idpr_cmtp = 0o046;
148	pub const PROTO_ipv6 = 0o051;
149	pub const PROTO_ipv6_route = 0o053;
150	pub const PROTO_ipv6_frag = 0o054;
151	pub const PROTO_idrp = 0o055;
152	pub const PROTO_rsvp = 0o056;
153	pub const PROTO_gre = 0o057;
154	pub const PROTO_esp = 0o062;
155	pub const PROTO_ah = 0o063;
156	pub const PROTO_skip = 0o071;
157	pub const PROTO_ipv6_icmp = 0o072;
158	pub const PROTO_ipv6_nonxt = 0o073;
159	pub const PROTO_ipv6_opts = 0o074;
160	pub const PROTO_rspf = 0o111;
161	pub const PROTO_vmtp = 0o121;
162	pub const PROTO_ospf = 0o131;
163	pub const PROTO_ipip = 0o136;
164	pub const PROTO_encap = 0o142;
165	pub const PROTO_pim = 0o147;
166	pub const PROTO_raw = 0o377;
167
168	pub const SHUT_RD = 0;
169	pub const SHUT_WR = 1;
170	pub const SHUT_RDWR = 2;
171
172	pub const SOCK_STREAM = 1;
173	pub const SOCK_DGRAM = 2;
174	pub const SOCK_RAW = 3;
175	pub const SOCK_RDM = 4;
176	pub const SOCK_SEQPACKET = 5;
177	pub const SOCK_DCCP = 6;
178	pub const SOCK_PACKET = 10;
179	pub const SOCK_CLOEXEC = 0o2000000;
180	pub const SOCK_NONBLOCK = 0o4000;
181
182	pub const PF_UNSPEC = 0;
183	pub const PF_LOCAL = 1;
184	pub const PF_UNIX = PF_LOCAL;
185	pub const PF_FILE = PF_LOCAL;
186	pub const PF_INET = 2;
187	pub const PF_AX25 = 3;
188	pub const PF_IPX = 4;
189	pub const PF_APPLETALK = 5;
190	pub const PF_NETROM = 6;
191	pub const PF_BRIDGE = 7;
192	pub const PF_ATMPVC = 8;
193	pub const PF_X25 = 9;
194	pub const PF_INET6 = 10;
195	pub const PF_ROSE = 11;
196	pub const PF_DECnet = 12;
197	pub const PF_NETBEUI = 13;
198	pub const PF_SECURITY = 14;
199	pub const PF_KEY = 15;
200	pub const PF_NETLINK = 16;
201	pub const PF_ROUTE = PF_NETLINK;
202	pub const PF_PACKET = 17;
203	pub const PF_ASH = 18;
204	pub const PF_ECONET = 19;
205	pub const PF_ATMSVC = 20;
206	pub const PF_RDS = 21;
207	pub const PF_SNA = 22;
208	pub const PF_IRDA = 23;
209	pub const PF_PPPOX = 24;
210	pub const PF_WANPIPE = 25;
211	pub const PF_LLC = 26;
212	pub const PF_IB = 27;
213	pub const PF_MPLS = 28;
214	pub const PF_CAN = 29;
215	pub const PF_TIPC = 30;
216	pub const PF_BLUETOOTH = 31;
217	pub const PF_IUCV = 32;
218	pub const PF_RXRPC = 33;
219	pub const PF_ISDN = 34;
220	pub const PF_PHONET = 35;
221	pub const PF_IEEE802154 = 36;
222	pub const PF_CAIF = 37;
223	pub const PF_ALG = 38;
224	pub const PF_NFC = 39;
225	pub const PF_VSOCK = 40;
226	pub const PF_KCM = 41;
227	pub const PF_QIPCRTR = 42;
228	pub const PF_SMC = 43;
229	pub const PF_MAX = 44;
230
231	pub const AF_UNSPEC = PF_UNSPEC;
232	pub const AF_LOCAL = PF_LOCAL;
233	pub const AF_UNIX = AF_LOCAL;
234	pub const AF_FILE = AF_LOCAL;
235	pub const AF_INET = PF_INET;
236	pub const AF_AX25 = PF_AX25;
237	pub const AF_IPX = PF_IPX;
238	pub const AF_APPLETALK = PF_APPLETALK;
239	pub const AF_NETROM = PF_NETROM;
240	pub const AF_BRIDGE = PF_BRIDGE;
241	pub const AF_ATMPVC = PF_ATMPVC;
242	pub const AF_X25 = PF_X25;
243	pub const AF_INET6 = PF_INET6;
244	pub const AF_ROSE = PF_ROSE;
245	pub const AF_DECnet = PF_DECnet;
246	pub const AF_NETBEUI = PF_NETBEUI;
247	pub const AF_SECURITY = PF_SECURITY;
248	pub const AF_KEY = PF_KEY;
249	pub const AF_NETLINK = PF_NETLINK;
250	pub const AF_ROUTE = PF_ROUTE;
251	pub const AF_PACKET = PF_PACKET;
252	pub const AF_ASH = PF_ASH;
253	pub const AF_ECONET = PF_ECONET;
254	pub const AF_ATMSVC = PF_ATMSVC;
255	pub const AF_RDS = PF_RDS;
256	pub const AF_SNA = PF_SNA;
257	pub const AF_IRDA = PF_IRDA;
258	pub const AF_PPPOX = PF_PPPOX;
259	pub const AF_WANPIPE = PF_WANPIPE;
260	pub const AF_LLC = PF_LLC;
261	pub const AF_IB = PF_IB;
262	pub const AF_MPLS = PF_MPLS;
263	pub const AF_CAN = PF_CAN;
264	pub const AF_TIPC = PF_TIPC;
265	pub const AF_BLUETOOTH = PF_BLUETOOTH;
266	pub const AF_IUCV = PF_IUCV;
267	pub const AF_RXRPC = PF_RXRPC;
268	pub const AF_ISDN = PF_ISDN;
269	pub const AF_PHONET = PF_PHONET;
270	pub const AF_IEEE802154 = PF_IEEE802154;
271	pub const AF_CAIF = PF_CAIF;
272	pub const AF_ALG = PF_ALG;
273	pub const AF_NFC = PF_NFC;
274	pub const AF_VSOCK = PF_VSOCK;
275	pub const AF_KCM = PF_KCM;
276	pub const AF_QIPCRTR = PF_QIPCRTR;
277	pub const AF_SMC = PF_SMC;
278	pub const AF_MAX = PF_MAX;
279
280	pub const SO_DEBUG = 1;
281	pub const SO_REUSEADDR = 2;
282	pub const SO_TYPE = 3;
283	pub const SO_ERROR = 4;
284	pub const SO_DONTROUTE = 5;
285	pub const SO_BROADCAST = 6;
286	pub const SO_SNDBUF = 7;
287	pub const SO_RCVBUF = 8;
288	pub const SO_KEEPALIVE = 9;
289	pub const SO_OOBINLINE = 10;
290	pub const SO_NO_CHECK = 11;
291	pub const SO_PRIORITY = 12;
292	pub const SO_LINGER = 13;
293	pub const SO_BSDCOMPAT = 14;
294	pub const SO_REUSEPORT = 15;
295	pub const SO_PASSCRED = 16;
296	pub const SO_PEERCRED = 17;
297	pub const SO_RCVLOWAT = 18;
298	pub const SO_SNDLOWAT = 19;
299	pub const SO_RCVTIMEO = 20;
300	pub const SO_SNDTIMEO = 21;
301	pub const SO_ACCEPTCONN = 30;
302	pub const SO_SNDBUFFORCE = 32;
303	pub const SO_RCVBUFFORCE = 33;
304	pub const SO_PROTOCOL = 38;
305	pub const SO_DOMAIN = 39;
306
307	pub const SO_SECURITY_AUTHENTICATION = 22;
308	pub const SO_SECURITY_ENCRYPTION_TRANSPORT = 23;
309	pub const SO_SECURITY_ENCRYPTION_NETWORK = 24;
310
311	pub const SO_BINDTODEVICE = 25;
312
313	pub const SO_ATTACH_FILTER = 26;
314	pub const SO_DETACH_FILTER = 27;
315	pub const SO_GET_FILTER = SO_ATTACH_FILTER;
316
317	pub const SO_PEERNAME = 28;
318	pub const SO_TIMESTAMP = 29;
319	pub const SCM_TIMESTAMP = SO_TIMESTAMP;
320
321	pub const SO_PEERSEC = 31;
322	pub const SO_PASSSEC = 34;
323	pub const SO_TIMESTAMPNS = 35;
324	pub const SCM_TIMESTAMPNS = SO_TIMESTAMPNS;
325	pub const SO_MARK = 36;
326	pub const SO_TIMESTAMPING = 37;
327	pub const SCM_TIMESTAMPING = SO_TIMESTAMPING;
328	pub const SO_RXQ_OVFL = 40;
329	pub const SO_WIFI_STATUS = 41;
330	pub const SCM_WIFI_STATUS = SO_WIFI_STATUS;
331	pub const SO_PEEK_OFF = 42;
332	pub const SO_NOFCS = 43;
333	pub const SO_LOCK_FILTER = 44;
334	pub const SO_SELECT_ERR_QUEUE = 45;
335	pub const SO_BUSY_POLL = 46;
336	pub const SO_MAX_PACING_RATE = 47;
337	pub const SO_BPF_EXTENSIONS = 48;
338	pub const SO_INCOMING_CPU = 49;
339	pub const SO_ATTACH_BPF = 50;
340	pub const SO_DETACH_BPF = SO_DETACH_FILTER;
341	pub const SO_ATTACH_REUSEPORT_CBPF = 51;
342	pub const SO_ATTACH_REUSEPORT_EBPF = 52;
343	pub const SO_CNX_ADVICE = 53;
344	pub const SCM_TIMESTAMPING_OPT_STATS = 54;
345	pub const SO_MEMINFO = 55;
346	pub const SO_INCOMING_NAPI_ID = 56;
347	pub const SO_COOKIE = 57;
348	pub const SCM_TIMESTAMPING_PKTINFO = 58;
349	pub const SO_PEERGROUPS = 59;
350	pub const SO_ZEROCOPY = 60;
351
352	pub const SOL_SOCKET = 1;
353
354	pub const SOL_IP = 0;
355	pub const SOL_IPV6 = 41;
356	pub const SOL_ICMPV6 = 58;
357
358	pub const SOL_RAW = 255;
359	pub const SOL_DECNET = 261;
360	pub const SOL_X25 = 262;
361	pub const SOL_PACKET = 263;
362	pub const SOL_ATM = 264;
363	pub const SOL_AAL = 265;
364	pub const SOL_IRDA = 266;
365	pub const SOL_NETBEUI = 267;
366	pub const SOL_LLC = 268;
367	pub const SOL_DCCP = 269;
368	pub const SOL_NETLINK = 270;
369	pub const SOL_TIPC = 271;
370	pub const SOL_RXRPC = 272;
371	pub const SOL_PPPOL2TP = 273;
372	pub const SOL_BLUETOOTH = 274;
373	pub const SOL_PNPIPE = 275;
374	pub const SOL_RDS = 276;
375	pub const SOL_IUCV = 277;
376	pub const SOL_CAIF = 278;
377	pub const SOL_ALG = 279;
378	pub const SOL_NFC = 280;
379	pub const SOL_KCM = 281;
380	pub const SOL_TLS = 282;
381
382	pub const SOMAXCONN = 128;
383
384	pub const MSG_OOB = 0x0001;
385	pub const MSG_PEEK = 0x0002;
386	pub const MSG_DONTROUTE = 0x0004;
387	pub const MSG_CTRUNC = 0x0008;
388	pub const MSG_PROXY = 0x0010;
389	pub const MSG_TRUNC = 0x0020;
390	pub const MSG_DONTWAIT = 0x0040;
391	pub const MSG_EOR = 0x0080;
392	pub const MSG_WAITALL = 0x0100;
393	pub const MSG_FIN = 0x0200;
394	pub const MSG_SYN = 0x0400;
395	pub const MSG_CONFIRM = 0x0800;
396	pub const MSG_RST = 0x1000;
397	pub const MSG_ERRQUEUE = 0x2000;
398	pub const MSG_NOSIGNAL = 0x4000;
399	pub const MSG_MORE = 0x8000;
400	pub const MSG_WAITFORONE = 0x10000;
401	pub const MSG_BATCH = 0x40000;
402	pub const MSG_ZEROCOPY = 0x4000000;
403	pub const MSG_FASTOPEN = 0x20000000;
404	pub const MSG_CMSG_CLOEXEC = 0x40000000;
405
406	pub const DT_UNKNOWN = 0;
407	pub const DT_FIFO = 1;
408	pub const DT_CHR = 2;
409	pub const DT_DIR = 4;
410	pub const DT_BLK = 6;
411	pub const DT_REG = 8;
412	pub const DT_LNK = 10;
413	pub const DT_SOCK = 12;
414	pub const DT_WHT = 14;
415
416	pub const TCGETS = 0x5401;
417	pub const TCSETS = 0x5402;
418	pub const TCSETSW = 0x5403;
419	pub const TCSETSF = 0x5404;
420	pub const TCGETA = 0x5405;
421	pub const TCSETA = 0x5406;
422	pub const TCSETAW = 0x5407;
423	pub const TCSETAF = 0x5408;
424	pub const TCSBRK = 0x5409;
425	pub const TCXONC = 0x540A;
426	pub const TCFLSH = 0x540B;
427	pub const TIOCEXCL = 0x540C;
428	pub const TIOCNXCL = 0x540D;
429	pub const TIOCSCTTY = 0x540E;
430	pub const TIOCGPGRP = 0x540F;
431	pub const TIOCSPGRP = 0x5410;
432	pub const TIOCOUTQ = 0x5411;
433	pub const TIOCSTI = 0x5412;
434	pub const TIOCGWINSZ = 0x5413;
435	pub const TIOCSWINSZ = 0x5414;
436	pub const TIOCMGET = 0x5415;
437	pub const TIOCMBIS = 0x5416;
438	pub const TIOCMBIC = 0x5417;
439	pub const TIOCMSET = 0x5418;
440	pub const TIOCGSOFTCAR = 0x5419;
441	pub const TIOCSSOFTCAR = 0x541A;
442	pub const FIONREAD = 0x541B;
443	pub const TIOCINQ = FIONREAD;
444	pub const TIOCLINUX = 0x541C;
445	pub const TIOCCONS = 0x541D;
446	pub const TIOCGSERIAL = 0x541E;
447	pub const TIOCSSERIAL = 0x541F;
448	pub const TIOCPKT = 0x5420;
449	pub const FIONBIO = 0x5421;
450	pub const TIOCNOTTY = 0x5422;
451	pub const TIOCSETD = 0x5423;
452	pub const TIOCGETD = 0x5424;
453	pub const TCSBRKP = 0x5425;
454	pub const TIOCSBRK = 0x5427;
455	pub const TIOCCBRK = 0x5428;
456	pub const TIOCGSID = 0x5429;
457	pub const TIOCGRS485 = 0x542E;
458	pub const TIOCSRS485 = 0x542F;
459	pub const TIOCGPTN = 0x80045430;
460	pub const TIOCSPTLCK = 0x40045431;
461	pub const TIOCGDEV = 0x80045432;
462	pub const TCGETX = 0x5432;
463	pub const TCSETX = 0x5433;
464	pub const TCSETXF = 0x5434;
465	pub const TCSETXW = 0x5435;
466	pub const TIOCSIG = 0x40045436;
467	pub const TIOCVHANGUP = 0x5437;
468	pub const TIOCGPKT = 0x80045438;
469	pub const TIOCGPTLCK = 0x80045439;
470	pub const TIOCGEXCL = 0x80045440;
471
472	pub const EPOLL_CLOEXEC = O_CLOEXEC;
473
474	pub const EPOLL_CTL_ADD = 1;
475	pub const EPOLL_CTL_DEL = 2;
476	pub const EPOLL_CTL_MOD = 3;
477
478	pub const EPOLLIN = 0x001;
479	pub const EPOLLPRI = 0x002;
480	pub const EPOLLOUT = 0x004;
481	pub const EPOLLRDNORM = 0x040;
482	pub const EPOLLRDBAND = 0x080;
483	pub const EPOLLWRNORM = 0x100;
484	pub const EPOLLWRBAND = 0x200;
485	pub const EPOLLMSG = 0x400;
486	pub const EPOLLERR = 0x008;
487	pub const EPOLLHUP = 0x010;
488	pub const EPOLLRDHUP = 0x2000;
489	pub const EPOLLEXCLUSIVE = (u32(1) << 28);
490	pub const EPOLLWAKEUP = (u32(1) << 29);
491	pub const EPOLLONESHOT = (u32(1) << 30);
492	pub const EPOLLET = (u32(1) << 31);
493
494	pub const CLOCK_REALTIME = 0;
495	pub const CLOCK_MONOTONIC = 1;
496	pub const CLOCK_PROCESS_CPUTIME_ID = 2;
497	pub const CLOCK_THREAD_CPUTIME_ID = 3;
498	pub const CLOCK_MONOTONIC_RAW = 4;
499	pub const CLOCK_REALTIME_COARSE = 5;
500	pub const CLOCK_MONOTONIC_COARSE = 6;
501	pub const CLOCK_BOOTTIME = 7;
502	pub const CLOCK_REALTIME_ALARM = 8;
503	pub const CLOCK_BOOTTIME_ALARM = 9;
504	pub const CLOCK_SGI_CYCLE = 10;
505	pub const CLOCK_TAI = 11;
506
507	pub const CSIGNAL = 0x000000ff;
508	pub const CLONE_VM = 0x00000100;
509	pub const CLONE_FS = 0x00000200;
510	pub const CLONE_FILES = 0x00000400;
511	pub const CLONE_SIGHAND = 0x00000800;
512	pub const CLONE_PTRACE = 0x00002000;
513	pub const CLONE_VFORK = 0x00004000;
514	pub const CLONE_PARENT = 0x00008000;
515	pub const CLONE_THREAD = 0x00010000;
516	pub const CLONE_NEWNS = 0x00020000;
517	pub const CLONE_SYSVSEM = 0x00040000;
518	pub const CLONE_SETTLS = 0x00080000;
519	pub const CLONE_PARENT_SETTID = 0x00100000;
520	pub const CLONE_CHILD_CLEARTID = 0x00200000;
521	pub const CLONE_DETACHED = 0x00400000;
522	pub const CLONE_UNTRACED = 0x00800000;
523	pub const CLONE_CHILD_SETTID = 0x01000000;
524	pub const CLONE_NEWCGROUP = 0x02000000;
525	pub const CLONE_NEWUTS = 0x04000000;
526	pub const CLONE_NEWIPC = 0x08000000;
527	pub const CLONE_NEWUSER = 0x10000000;
528	pub const CLONE_NEWPID = 0x20000000;
529	pub const CLONE_NEWNET = 0x40000000;
530	pub const CLONE_IO = 0x80000000;
531
532	pub const EFD_SEMAPHORE = 1;
533	pub const EFD_CLOEXEC = O_CLOEXEC;
534	pub const EFD_NONBLOCK = O_NONBLOCK;
535
536	pub const MS_RDONLY = 1;
537	pub const MS_NOSUID = 2;
538	pub const MS_NODEV = 4;
539	pub const MS_NOEXEC = 8;
540	pub const MS_SYNCHRONOUS = 16;
541	pub const MS_REMOUNT = 32;
542	pub const MS_MANDLOCK = 64;
543	pub const MS_DIRSYNC = 128;
544	pub const MS_NOATIME = 1024;
545	pub const MS_NODIRATIME = 2048;
546	pub const MS_BIND = 4096;
547	pub const MS_MOVE = 8192;
548	pub const MS_REC = 16384;
549	pub const MS_SILENT = 32768;
550	pub const MS_POSIXACL = (1 << 16);
551	pub const MS_UNBINDABLE = (1 << 17);
552	pub const MS_PRIVATE = (1 << 18);
553	pub const MS_SLAVE = (1 << 19);
554	pub const MS_SHARED = (1 << 20);
555	pub const MS_RELATIME = (1 << 21);
556	pub const MS_KERNMOUNT = (1 << 22);
557	pub const MS_I_VERSION = (1 << 23);
558	pub const MS_STRICTATIME = (1 << 24);
559	pub const MS_LAZYTIME = (1 << 25);
560	pub const MS_NOREMOTELOCK = (1 << 27);
561	pub const MS_NOSEC = (1 << 28);
562	pub const MS_BORN = (1 << 29);
563	pub const MS_ACTIVE = (1 << 30);
564	pub const MS_NOUSER = (1 << 31);
565
566	pub const MS_RMT_MASK = (MS_RDONLY \| MS_SYNCHRONOUS \| MS_MANDLOCK \| MS_I_VERSION \| MS_LAZYTIME);
567
568	pub const MS_MGC_VAL = 0xc0ed0000;
569	pub const MS_MGC_MSK = 0xffff0000;
570
571	pub const MNT_FORCE = 1;
572	pub const MNT_DETACH = 2;
573	pub const MNT_EXPIRE = 4;
574	pub const UMOUNT_NOFOLLOW = 8;
575
576	pub const IN_CLOEXEC = O_CLOEXEC;
577	pub const IN_NONBLOCK = O_NONBLOCK;
578
579	pub const IN_ACCESS = 0x00000001;
580	pub const IN_MODIFY = 0x00000002;
581	pub const IN_ATTRIB = 0x00000004;
582	pub const IN_CLOSE_WRITE = 0x00000008;
583	pub const IN_CLOSE_NOWRITE = 0x00000010;
584	pub const IN_CLOSE = IN_CLOSE_WRITE \| IN_CLOSE_NOWRITE;
585	pub const IN_OPEN = 0x00000020;
586	pub const IN_MOVED_FROM = 0x00000040;
587	pub const IN_MOVED_TO = 0x00000080;
588	pub const IN_MOVE = IN_MOVED_FROM \| IN_MOVED_TO;
589	pub const IN_CREATE = 0x00000100;
590	pub const IN_DELETE = 0x00000200;
591	pub const IN_DELETE_SELF = 0x00000400;
592	pub const IN_MOVE_SELF = 0x00000800;
593	pub const IN_ALL_EVENTS = 0x00000fff;
594
595	pub const IN_UNMOUNT = 0x00002000;
596	pub const IN_Q_OVERFLOW = 0x00004000;
597	pub const IN_IGNORED = 0x00008000;
598
599	pub const IN_ONLYDIR = 0x01000000;
600	pub const IN_DONT_FOLLOW = 0x02000000;
601	pub const IN_EXCL_UNLINK = 0x04000000;
602	pub const IN_MASK_ADD = 0x20000000;
603
604	pub const IN_ISDIR = 0x40000000;
605	pub const IN_ONESHOT = 0x80000000;
606
607	pub const S_IFMT = 0o170000;
608
609	pub const S_IFDIR = 0o040000;
610	pub const S_IFCHR = 0o020000;
611	pub const S_IFBLK = 0o060000;
612	pub const S_IFREG = 0o100000;
613	pub const S_IFIFO = 0o010000;
614	pub const S_IFLNK = 0o120000;
615	pub const S_IFSOCK = 0o140000;
616
617	pub const S_ISUID = 0o4000;
618	pub const S_ISGID = 0o2000;
619	pub const S_ISVTX = 0o1000;
620	pub const S_IRUSR = 0o400;
621	pub const S_IWUSR = 0o200;
622	pub const S_IXUSR = 0o100;
623	pub const S_IRWXU = 0o700;
624	pub const S_IRGRP = 0o040;
625	pub const S_IWGRP = 0o020;
626	pub const S_IXGRP = 0o010;
627	pub const S_IRWXG = 0o070;
628	pub const S_IROTH = 0o004;
629	pub const S_IWOTH = 0o002;
630	pub const S_IXOTH = 0o001;
631	pub const S_IRWXO = 0o007;
632
633	pub fn S_ISREG(m: u32) bool {
634	return m & S_IFMT == S_IFREG;
635	}
636
637	pub fn S_ISDIR(m: u32) bool {
638	return m & S_IFMT == S_IFDIR;
639	}
640
641	pub fn S_ISCHR(m: u32) bool {
642	return m & S_IFMT == S_IFCHR;
643	}
644
645	pub fn S_ISBLK(m: u32) bool {
646	return m & S_IFMT == S_IFBLK;
647	}
648
649	pub fn S_ISFIFO(m: u32) bool {
650	return m & S_IFMT == S_IFIFO;
651	}
652
653	pub fn S_ISLNK(m: u32) bool {
654	return m & S_IFMT == S_IFLNK;
655	}
656
657	pub fn S_ISSOCK(m: u32) bool {
658	return m & S_IFMT == S_IFSOCK;
659	}
660
661	pub const TFD_NONBLOCK = O_NONBLOCK;
662	pub const TFD_CLOEXEC = O_CLOEXEC;
663		24
664	pub const TFD_TIMER_ABSTIME = 1;	25	/// Set by startup code, used by `getauxval`.
665	pub const TFD_TIMER_CANCEL_ON_SET = (1 << 1);	26	pub var elf_aux_maybe: ?[*]std.elf.Auxv = null;
666		27
667	fn unsigned(s: i32) u32 {	28	/// See `std.elf` for the constants.
668	return @bitCast(u32, s);	29	pub fn getauxval(index: usize) usize {
669	}	30	const auxv = elf_aux_maybe orelse return 0;
670	fn signed(s: u32) i32 {	31	var i: usize = 0;
671	return @bitCast(i32, s);	32	while (auxv[i].a_type != std.elf.AT_NULL) : (i += 1) {
672	}	33	if (auxv[i].a_type == index)
673	pub fn WEXITSTATUS(s: i32) i32 {	34	return auxv[i].a_un.a_val;
674	return signed((unsigned(s) & 0xff00) >> 8);	35	}
675	}	36	return 0;
676	pub fn WTERMSIG(s: i32) i32 {
677	return signed(unsigned(s) & 0x7f);
678	}
679	pub fn WSTOPSIG(s: i32) i32 {
680	return WEXITSTATUS(s);
681	}
682	pub fn WIFEXITED(s: i32) bool {
683	return WTERMSIG(s) == 0;
684	}
685	pub fn WIFSTOPPED(s: i32) bool {
686	return @intCast(u16, ((unsigned(s) & 0xffff) *% 0x10001) >> 8) > 0x7f00;
687	}
688	pub fn WIFSIGNALED(s: i32) bool {
689	return (unsigned(s) & 0xffff) -% 1 < 0xff;
690	}	37	}
691		38
692	pub const winsize = extern struct {
693	ws_row: u16,
694	ws_col: u16,
695	ws_xpixel: u16,
696	ws_ypixel: u16,
697	};
698
699	/// Get the errno from a syscall return value, or 0 for no error.	39	/// Get the errno from a syscall return value, or 0 for no error.
700	pub fn getErrno(r: usize) usize {	40	pub fn getErrno(r: usize) u12 {
701	const signed_r = @bitCast(isize, r);	41	const signed_r = @bitCast(isize, r);
702	return if (signed_r > -4096 and signed_r < 0) @intCast(usize, -signed_r) else 0;	42	return if (signed_r > -4096 and signed_r < 0) @intCast(u12, -signed_r) else 0;
703	}	43	}
704		44
705	pub fn dup2(old: i32, new: i32) usize {	45	pub fn dup2(old: i32, new: i32) usize {
706	return dup3(old, new, 0);	46	if (@hasDecl(@This(), "SYS_dup2")) {
		47	return syscall2(SYS_dup2, @bitCast(usize, isize(old)), @bitCast(usize, isize(new)));
		48	} else {
		49	if (old == new) {
		50	if (std.debug.runtime_safety) {
		51	const rc = syscall2(SYS_fcntl, @bitCast(usize, isize(old)), F_GETFD);
		52	if (@bitCast(isize, rc) < 0) return rc;
		53	}
		54	return @intCast(usize, old);
		55	} else {
		56	return syscall3(SYS_dup3, @bitCast(usize, isize(old)), @bitCast(usize, isize(new)), 0);
		57	}
		58	}
707	}	59	}
708		60
709	pub fn dup3(old: i32, new: i32, flags: u32) usize {	61	pub fn dup3(old: i32, new: i32, flags: u32) usize {
...	@@ -726,7 +78,11 @@ pub fn execve(path: []const u8, argv: []const ?[]const u8, envp: []const ?[*	...	@@ -726,7 +78,11 @@ pub fn execve(path: []const u8, argv: []const ?[]const u8, envp: []const ?[*
726	}	78	}
727		79
728	pub fn fork() usize {	80	pub fn fork() usize {
729	return clone2(SIGCHLD, 0);	81	if (@hasDecl(@This(), "SYS_fork")) {
		82	return syscall0(SYS_fork);
		83	} else {
		84	return syscall2(SYS_clone, SIGCHLD, 0);
		85	}
730	}	86	}
731		87
732	/// This must be inline, and inline call the syscall function, because if the	88	/// This must be inline, and inline call the syscall function, because if the
...	@@ -750,6 +106,10 @@ pub fn getcwd(buf: [*]u8, size: usize) usize {	...	@@ -750,6 +106,10 @@ pub fn getcwd(buf: [*]u8, size: usize) usize {
750	return syscall2(SYS_getcwd, @ptrToInt(buf), size);	106	return syscall2(SYS_getcwd, @ptrToInt(buf), size);
751	}	107	}
752		108
		109	pub fn getdents(fd: i32, dirp: [*]u8, count: usize) usize {
		110	return syscall3(SYS_getdents, @bitCast(usize, isize(fd)), @ptrToInt(dirp), count);
		111	}
		112
753	pub fn getdents64(fd: i32, dirp: [*]u8, count: usize) usize {	113	pub fn getdents64(fd: i32, dirp: [*]u8, count: usize) usize {
754	return syscall3(SYS_getdents64, @bitCast(usize, isize(fd)), @ptrToInt(dirp), count);	114	return syscall3(SYS_getdents64, @bitCast(usize, isize(fd)), @ptrToInt(dirp), count);
755	}	115	}
...	@@ -766,14 +126,13 @@ pub fn inotify_rm_watch(fd: i32, wd: i32) usize {	...	@@ -766,14 +126,13 @@ pub fn inotify_rm_watch(fd: i32, wd: i32) usize {
766	return syscall2(SYS_inotify_rm_watch, @bitCast(usize, isize(fd)), @bitCast(usize, isize(wd)));	126	return syscall2(SYS_inotify_rm_watch, @bitCast(usize, isize(fd)), @bitCast(usize, isize(wd)));
767	}	127	}
768		128
769	pub fn isatty(fd: i32) bool {
770	var wsz: winsize = undefined;
771	return syscall3(SYS_ioctl, @bitCast(usize, isize(fd)), TIOCGWINSZ, @ptrToInt(&wsz)) == 0;
772	}
773
774	// TODO https://github.com/ziglang/zig/issues/265	129	// TODO https://github.com/ziglang/zig/issues/265
775	pub fn readlink(noalias path: []const u8, noalias buf_ptr: []u8, buf_len: usize) usize {	130	pub fn readlink(noalias path: []const u8, noalias buf_ptr: []u8, buf_len: usize) usize {
776	return readlinkat(AT_FDCWD, path, buf_ptr, buf_len);	131	if (@hasDecl(@This(), "SYS_readlink")) {
		132	return syscall3(SYS_readlink, @ptrToInt(path), @ptrToInt(buf_ptr), buf_len);
		133	} else {
		134	return syscall4(SYS_readlinkat, AT_FDCWD, @ptrToInt(path), @ptrToInt(buf_ptr), buf_len);
		135	}
777	}	136	}
778		137
779	// TODO https://github.com/ziglang/zig/issues/265	138	// TODO https://github.com/ziglang/zig/issues/265
...	@@ -783,7 +142,11 @@ pub fn readlinkat(dirfd: i32, noalias path: []const u8, noalias buf_ptr: []u8,	...	@@ -783,7 +142,11 @@ pub fn readlinkat(dirfd: i32, noalias path: []const u8, noalias buf_ptr: []u8,
783		142
784	// TODO https://github.com/ziglang/zig/issues/265	143	// TODO https://github.com/ziglang/zig/issues/265
785	pub fn mkdir(path: [*]const u8, mode: u32) usize {	144	pub fn mkdir(path: [*]const u8, mode: u32) usize {
786	return mkdirat(AT_FDCWD, path, mode);	145	if (@hasDecl(@This(), "SYS_mkdir")) {
		146	return syscall2(SYS_mkdir, @ptrToInt(path), mode);
		147	} else {
		148	return syscall3(SYS_mkdirat, AT_FDCWD, @ptrToInt(path), mode);
		149	}
787	}	150	}
788		151
789	// TODO https://github.com/ziglang/zig/issues/265	152	// TODO https://github.com/ziglang/zig/issues/265
...	@@ -810,12 +173,12 @@ pub fn mmap(address: ?[*]u8, length: usize, prot: usize, flags: u32, fd: i32, of	...	@@ -810,12 +173,12 @@ pub fn mmap(address: ?[*]u8, length: usize, prot: usize, flags: u32, fd: i32, of
810	return syscall6(SYS_mmap, @ptrToInt(address), length, prot, flags, @bitCast(usize, isize(fd)), @bitCast(usize, offset));	173	return syscall6(SYS_mmap, @ptrToInt(address), length, prot, flags, @bitCast(usize, isize(fd)), @bitCast(usize, offset));
811	}	174	}
812		175
813	pub fn mprotect(address: usize, length: usize, protection: usize) usize {	176	pub fn mprotect(address: [*]const u8, length: usize, protection: usize) usize {
814	return syscall3(SYS_mprotect, address, length, protection);	177	return syscall3(SYS_mprotect, @ptrToInt(address), length, protection);
815	}	178	}
816		179
817	pub fn munmap(address: usize, length: usize) usize {	180	pub fn munmap(address: [*]const u8, length: usize) usize {
818	return syscall2(SYS_munmap, address, length);	181	return syscall2(SYS_munmap, @ptrToInt(address), length);
819	}	182	}
820		183
821	pub fn read(fd: i32, buf: [*]u8, count: usize) usize {	184	pub fn read(fd: i32, buf: [*]u8, count: usize) usize {
...	@@ -840,12 +203,20 @@ pub fn pwritev(fd: i32, iov: [*]const iovec_const, count: usize, offset: u64) us	...	@@ -840,12 +203,20 @@ pub fn pwritev(fd: i32, iov: [*]const iovec_const, count: usize, offset: u64) us
840		203
841	// TODO https://github.com/ziglang/zig/issues/265	204	// TODO https://github.com/ziglang/zig/issues/265
842	pub fn rmdir(path: [*]const u8) usize {	205	pub fn rmdir(path: [*]const u8) usize {
843	return unlinkat(AT_FDCWD, path, AT_REMOVEDIR);	206	if (@hasDecl(@This(), "SYS_rmdir")) {
		207	return syscall1(SYS_rmdir, @ptrToInt(path));
		208	} else {
		209	return syscall3(SYS_unlinkat, AT_FDCWD, @ptrToInt(path), AT_REMOVEDIR);
		210	}
844	}	211	}
845		212
846	// TODO https://github.com/ziglang/zig/issues/265	213	// TODO https://github.com/ziglang/zig/issues/265
847	pub fn symlink(existing: []const u8, new: []const u8) usize {	214	pub fn symlink(existing: []const u8, new: []const u8) usize {
848	return symlinkat(existing, AT_FDCWD, new);	215	if (@hasDecl(@This(), "SYS_symlink")) {
		216	return syscall2(SYS_symlink, @ptrToInt(existing), @ptrToInt(new));
		217	} else {
		218	return syscall3(SYS_symlinkat, @ptrToInt(existing), AT_FDCWD, @ptrToInt(new));
		219	}
849	}	220	}
850		221
851	// TODO https://github.com/ziglang/zig/issues/265	222	// TODO https://github.com/ziglang/zig/issues/265
...	@@ -860,15 +231,20 @@ pub fn pread(fd: i32, buf: [*]u8, count: usize, offset: usize) usize {	...	@@ -860,15 +231,20 @@ pub fn pread(fd: i32, buf: [*]u8, count: usize, offset: usize) usize {
860		231
861	// TODO https://github.com/ziglang/zig/issues/265	232	// TODO https://github.com/ziglang/zig/issues/265
862	pub fn access(path: [*]const u8, mode: u32) usize {	233	pub fn access(path: [*]const u8, mode: u32) usize {
863	return faccessat(AT_FDCWD, path, mode);	234	return syscall2(SYS_access, @ptrToInt(path), mode);
864	}	235	}
865		236
		237	// TODO https://github.com/ziglang/zig/issues/265
866	pub fn faccessat(dirfd: i32, path: [*]const u8, mode: u32) usize {	238	pub fn faccessat(dirfd: i32, path: [*]const u8, mode: u32) usize {
867	return syscall3(SYS_faccessat, @bitCast(usize, isize(dirfd)), @ptrToInt(path), mode);	239	return syscall3(SYS_faccessat, @bitCast(usize, isize(dirfd)), @ptrToInt(path), mode);
868	}	240	}
869		241
870	pub fn pipe(fd: *[2]i32) usize {	242	pub fn pipe(fd: *[2]i32) usize {
871	return pipe2(fd, 0);	243	if (@hasDecl(@This(), "SYS_pipe")) {
		244	return syscall1(SYS_pipe, @ptrToInt(fd));
		245	} else {
		246	return syscall2(SYS_pipe2, @ptrToInt(fd), 0);
		247	}
872	}	248	}
873		249
874	pub fn pipe2(fd: *[2]i32, flags: u32) usize {	250	pub fn pipe2(fd: *[2]i32, flags: u32) usize {
...	@@ -885,17 +261,51 @@ pub fn pwrite(fd: i32, buf: [*]const u8, count: usize, offset: usize) usize {	...	@@ -885,17 +261,51 @@ pub fn pwrite(fd: i32, buf: [*]const u8, count: usize, offset: usize) usize {
885		261
886	// TODO https://github.com/ziglang/zig/issues/265	262	// TODO https://github.com/ziglang/zig/issues/265
887	pub fn rename(old: []const u8, new: []const u8) usize {	263	pub fn rename(old: []const u8, new: []const u8) usize {
888	return renameat2(AT_FDCWD, old, AT_FDCWD, new, 0);	264	if (@hasDecl(@This(), "SYS_rename")) {
		265	return syscall2(SYS_rename, @ptrToInt(old), @ptrToInt(new));
		266	} else if (@hasDecl(@This(), "SYS_renameat")) {
		267	return syscall4(SYS_renameat, AT_FDCWD, @ptrToInt(old), AT_FDCWD, @ptrToInt(new));
		268	} else {
		269	return syscall5(SYS_renameat2, AT_FDCWD, @ptrToInt(old), AT_FDCWD, @ptrToInt(new), 0);
		270	}
		271	}
		272
		273	pub fn renameat(oldfd: i32, oldpath: []const u8, newfd: i32, newpath: []const u8) usize {
		274	if (@hasDecl(@This(), "SYS_renameat")) {
		275	return syscall4(
		276	SYS_renameat,
		277	@bitCast(usize, isize(oldfd)),
		278	@ptrToInt(old),
		279	@bitCast(usize, isize(newfd)),
		280	@ptrToInt(new),
		281	);
		282	} else {
		283	return syscall5(
		284	SYS_renameat2,
		285	@bitCast(usize, isize(oldfd)),
		286	@ptrToInt(old),
		287	@bitCast(usize, isize(newfd)),
		288	@ptrToInt(new),
		289	0,
		290	);
		291	}
889	}	292	}
890		293
891	// TODO https://github.com/ziglang/zig/issues/265	294	// TODO https://github.com/ziglang/zig/issues/265
892	pub fn renameat2(oldfd: i32, oldpath: []const u8, newfd: i32, newpath: []const u8, flags: u32) usize {	295	pub fn renameat2(oldfd: i32, oldpath: []const u8, newfd: i32, newpath: []const u8, flags: u32) usize {
893	return syscall5(SYS_renameat2, @bitCast(usize, isize(oldfd)), @ptrToInt(oldpath), @bitCast(usize, isize(newfd)), @ptrToInt(newpath), flags);	296	return syscall5(
		297	SYS_renameat2,
		298	@bitCast(usize, isize(oldfd)),
		299	@ptrToInt(oldpath),
		300	@bitCast(usize, isize(newfd)),
		301	@ptrToInt(newpath),
		302	flags,
		303	);
894	}	304	}
895		305
896	// TODO https://github.com/ziglang/zig/issues/265	306	// TODO https://github.com/ziglang/zig/issues/265
897	pub fn open(path: [*]const u8, flags: u32, perm: usize) usize {	307	pub fn open(path: [*]const u8, flags: u32, perm: usize) usize {
898	return openat(AT_FDCWD, path, flags, perm);	308	return syscall3(SYS_open, @ptrToInt(path), flags, perm);
899	}	309	}
900		310
901	// TODO https://github.com/ziglang/zig/issues/265	311	// TODO https://github.com/ziglang/zig/issues/265
...	@@ -923,8 +333,21 @@ pub fn close(fd: i32) usize {	...	@@ -923,8 +333,21 @@ pub fn close(fd: i32) usize {
923	return syscall1(SYS_close, @bitCast(usize, isize(fd)));	333	return syscall1(SYS_close, @bitCast(usize, isize(fd)));
924	}	334	}
925		335
926	pub fn lseek(fd: i32, offset: isize, ref_pos: usize) usize {	336	/// Can only be called on 32 bit systems. For 64 bit see `lseek`.
927	return syscall3(SYS_lseek, @bitCast(usize, isize(fd)), @bitCast(usize, offset), ref_pos);	337	pub fn llseek(fd: i32, offset: u64, result: ?*u64, whence: usize) usize {
		338	return syscall5(
		339	SYS__llseek,
		340	@bitCast(usize, isize(fd)),
		341	@truncate(usize, offset >> 32),
		342	@truncate(usize, offset),
		343	@ptrToInt(result),
		344	whence,
		345	);
		346	}
		347
		348	/// Can only be called on 64 bit systems. For 32 bit see `llseek`.
		349	pub fn lseek(fd: i32, offset: i64, whence: usize) usize {
		350	return syscall3(SYS_lseek, @bitCast(usize, isize(fd)), @bitCast(usize, offset), whence);
928	}	351	}
929		352
930	pub fn exit(status: i32) noreturn {	353	pub fn exit(status: i32) noreturn {
...	@@ -947,7 +370,11 @@ pub fn kill(pid: i32, sig: i32) usize {	...	@@ -947,7 +370,11 @@ pub fn kill(pid: i32, sig: i32) usize {
947		370
948	// TODO https://github.com/ziglang/zig/issues/265	371	// TODO https://github.com/ziglang/zig/issues/265
949	pub fn unlink(path: [*]const u8) usize {	372	pub fn unlink(path: [*]const u8) usize {
950	return unlinkat(AT_FDCWD, path, 0);	373	if (@hasDecl(@This(), "SYS_unlink")) {
		374	return syscall1(SYS_unlink, @ptrToInt(path));
		375	} else {
		376	return syscall3(SYS_unlinkat, AT_FDCWD, @ptrToInt(path), 0);
		377	}
951	}	378	}
952		379
953	// TODO https://github.com/ziglang/zig/issues/265	380	// TODO https://github.com/ziglang/zig/issues/265
...	@@ -955,8 +382,8 @@ pub fn unlinkat(dirfd: i32, path: [*]const u8, flags: u32) usize {	...	@@ -955,8 +382,8 @@ pub fn unlinkat(dirfd: i32, path: [*]const u8, flags: u32) usize {
955	return syscall3(SYS_unlinkat, @bitCast(usize, isize(dirfd)), @ptrToInt(path), flags);	382	return syscall3(SYS_unlinkat, @bitCast(usize, isize(dirfd)), @ptrToInt(path), flags);
956	}	383	}
957		384
958	pub fn waitpid(pid: i32, status: *i32, options: i32) usize {	385	pub fn waitpid(pid: i32, status: *u32, flags: u32) usize {
959	return syscall4(SYS_wait4, @bitCast(usize, isize(pid)), @ptrToInt(status), @bitCast(usize, isize(options)), 0);	386	return syscall4(SYS_wait4, @bitCast(usize, isize(pid)), @ptrToInt(status), flags, 0);
960	}	387	}
961		388
962	var vdso_clock_gettime = @ptrCast(?*const c_void, init_vdso_clock_gettime);	389	var vdso_clock_gettime = @ptrCast(?*const c_void, init_vdso_clock_gettime);
...	@@ -1113,48 +540,15 @@ pub fn sigaction(sig: u6, noalias act: const Sigaction, noalias oact: ?Sigacti	...	@@ -1113,48 +540,15 @@ pub fn sigaction(sig: u6, noalias act: const Sigaction, noalias oact: ?Sigacti
1113	return 0;	540	return 0;
1114	}	541	}
1115		542
1116	const NSIG = 65;	543	pub fn blockAllSignals(set: *sigset_t) void {
1117	const sigset_t = [128 / @sizeOf(usize)]usize;
1118	const all_mask = []u32{ 0xffffffff, 0xffffffff };
1119	const app_mask = []u32{ 0xfffffffc, 0x7fffffff };
1120
1121	const k_sigaction = extern struct {
1122	handler: extern fn (i32) void,
1123	flags: usize,
1124	restorer: extern fn () void,
1125	mask: [2]u32,
1126	};
1127
1128	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
1129	pub const Sigaction = struct {
1130	handler: extern fn (i32) void,
1131	mask: sigset_t,
1132	flags: u32,
1133	};
1134
1135	pub const SIG_ERR = @intToPtr(extern fn (i32) void, maxInt(usize));
1136	pub const SIG_DFL = @intToPtr(extern fn (i32) void, 0);
1137	pub const SIG_IGN = @intToPtr(extern fn (i32) void, 1);
1138	pub const empty_sigset = []usize{0} ** sigset_t.len;
1139
1140	pub fn raise(sig: i32) usize {
1141	var set: sigset_t = undefined;
1142	blockAppSignals(&set);
1143	const tid = syscall0(SYS_gettid);
1144	const ret = syscall2(SYS_tkill, tid, @bitCast(usize, isize(sig)));
1145	restoreSignals(&set);
1146	return ret;
1147	}
1148
1149	fn blockAllSignals(set: *sigset_t) void {
1150	_ = syscall4(SYS_rt_sigprocmask, SIG_BLOCK, @ptrToInt(&all_mask), @ptrToInt(set), NSIG / 8);	544	_ = syscall4(SYS_rt_sigprocmask, SIG_BLOCK, @ptrToInt(&all_mask), @ptrToInt(set), NSIG / 8);
1151	}	545	}
1152		546
1153	fn blockAppSignals(set: *sigset_t) void {	547	pub fn blockAppSignals(set: *sigset_t) void {
1154	_ = syscall4(SYS_rt_sigprocmask, SIG_BLOCK, @ptrToInt(&app_mask), @ptrToInt(set), NSIG / 8);	548	_ = syscall4(SYS_rt_sigprocmask, SIG_BLOCK, @ptrToInt(&app_mask), @ptrToInt(set), NSIG / 8);
1155	}	549	}
1156		550
1157	fn restoreSignals(set: *sigset_t) void {	551	pub fn restoreSignals(set: *sigset_t) void {
1158	_ = syscall4(SYS_rt_sigprocmask, SIG_SETMASK, @ptrToInt(set), 0, NSIG / 8);	552	_ = syscall4(SYS_rt_sigprocmask, SIG_SETMASK, @ptrToInt(set), 0, NSIG / 8);
1159	}	553	}
1160		554
...	@@ -1168,56 +562,6 @@ pub fn sigismember(set: *const sigset_t, sig: u6) bool {	...	@@ -1168,56 +562,6 @@ pub fn sigismember(set: *const sigset_t, sig: u6) bool {
1168	return ((set.*)[@intCast(usize, s) / usize.bit_count] & (@intCast(usize, 1) << (s & (usize.bit_count - 1)))) != 0;	562	return ((set.*)[@intCast(usize, s) / usize.bit_count] & (@intCast(usize, 1) << (s & (usize.bit_count - 1)))) != 0;
1169	}	563	}
1170		564
1171	pub const in_port_t = u16;
1172	pub const sa_family_t = u16;
1173	pub const socklen_t = u32;
1174
1175	/// This intentionally only has ip4 and ip6
1176	pub const sockaddr = extern union {
1177	in: sockaddr_in,
1178	in6: sockaddr_in6,
1179	};
1180
1181	pub const sockaddr_in = extern struct {
1182	family: sa_family_t,
1183	port: in_port_t,
1184	addr: u32,
1185	zero: [8]u8,
1186	};
1187
1188	pub const sockaddr_in6 = extern struct {
1189	family: sa_family_t,
1190	port: in_port_t,
1191	flowinfo: u32,
1192	addr: [16]u8,
1193	scope_id: u32,
1194	};
1195
1196	pub const sockaddr_un = extern struct {
1197	family: sa_family_t,
1198	path: [108]u8,
1199	};
1200
1201	pub const iovec = extern struct {
1202	iov_base: [*]u8,
1203	iov_len: usize,
1204	};
1205
1206	pub const iovec_const = extern struct {
1207	iov_base: [*]const u8,
1208	iov_len: usize,
1209	};
1210
1211	pub const mmsghdr = extern struct {
1212	msg_hdr: msghdr,
1213	msg_len: u32,
1214	};
1215
1216	pub const mmsghdr_const = extern struct {
1217	msg_hdr: msghdr_const,
1218	msg_len: u32,
1219	};
1220
1221	pub fn getsockname(fd: i32, noalias addr: sockaddr, noalias len: socklen_t) usize {	565	pub fn getsockname(fd: i32, noalias addr: sockaddr, noalias len: socklen_t) usize {
1222	return syscall3(SYS_getsockname, @bitCast(usize, isize(fd)), @ptrToInt(addr), @ptrToInt(len));	566	return syscall3(SYS_getsockname, @bitCast(usize, isize(fd)), @ptrToInt(addr), @ptrToInt(len));
1223	}	567	}
...	@@ -1328,12 +672,12 @@ pub fn fstat(fd: i32, stat_buf: *Stat) usize {	...	@@ -1328,12 +672,12 @@ pub fn fstat(fd: i32, stat_buf: *Stat) usize {
1328		672
1329	// TODO https://github.com/ziglang/zig/issues/265	673	// TODO https://github.com/ziglang/zig/issues/265
1330	pub fn stat(pathname: []const u8, statbuf: Stat) usize {	674	pub fn stat(pathname: []const u8, statbuf: Stat) usize {
1331	return fstatat(AT_FDCWD, pathname, statbuf, AT_NO_AUTOMOUNT);	675	return syscall2(SYS_stat, @ptrToInt(pathname), @ptrToInt(statbuf));
1332	}	676	}
1333		677
1334	// TODO https://github.com/ziglang/zig/issues/265	678	// TODO https://github.com/ziglang/zig/issues/265
1335	pub fn lstat(pathname: []const u8, statbuf: Stat) usize {	679	pub fn lstat(pathname: []const u8, statbuf: Stat) usize {
1336	return fstatat(AF_FDCWD, pathname, statbuf, AT_SYMLINK_NOFOLLOW \| AT_NO_AUTOMOUNT);	680	return syscall2(SYS_lstat, @ptrToInt(pathname), @ptrToInt(statbuf));
1337	}	681	}
1338		682
1339	// TODO https://github.com/ziglang/zig/issues/265	683	// TODO https://github.com/ziglang/zig/issues/265
...	@@ -1400,30 +744,13 @@ pub fn fremovexattr(fd: usize, name: [*]const u8) usize {	...	@@ -1400,30 +744,13 @@ pub fn fremovexattr(fd: usize, name: [*]const u8) usize {
1400	return syscall2(SYS_fremovexattr, fd, @ptrToInt(name));	744	return syscall2(SYS_fremovexattr, fd, @ptrToInt(name));
1401	}	745	}
1402		746
1403	pub fn sched_getaffinity(pid: i32, set: []usize) usize {	747	pub fn sched_getaffinity(pid: i32, size: usize, set: *cpu_set_t) usize {
1404	return syscall3(SYS_sched_getaffinity, @bitCast(usize, isize(pid)), set.len * @sizeOf(usize), @ptrToInt(set.ptr));	748	const rc = syscall3(SYS_sched_getaffinity, @bitCast(usize, isize(pid)), size, @ptrToInt(set));
		749	if (@bitCast(isize, rc) < 0) return rc;
		750	if (rc < size) @memset(@ptrCast([*]u8, set) + rc, 0, size - rc);
		751	return 0;
1405	}	752	}
1406		753
1407	pub const epoll_data = extern union {
1408	ptr: usize,
1409	fd: i32,
1410	@"u32": u32,
1411	@"u64": u64,
1412	};
1413
1414	// On x86_64 the structure is packed so that it matches the definition of its
1415	// 32bit counterpart
1416	pub const epoll_event = if (builtin.arch != .x86_64)
1417	extern struct {
1418	events: u32,
1419	data: epoll_data,
1420	}
1421	else
1422	packed struct {
1423	events: u32,
1424	data: epoll_data,
1425	};
1426
1427	pub fn epoll_create() usize {	754	pub fn epoll_create() usize {
1428	return epoll_create1(0);	755	return epoll_create1(0);
1429	}	756	}
...	@@ -1437,7 +764,13 @@ pub fn epoll_ctl(epoll_fd: i32, op: u32, fd: i32, ev: *epoll_event) usize {	...	@@ -1437,7 +764,13 @@ pub fn epoll_ctl(epoll_fd: i32, op: u32, fd: i32, ev: *epoll_event) usize {
1437	}	764	}
1438		765
1439	pub fn epoll_wait(epoll_fd: i32, events: [*]epoll_event, maxevents: u32, timeout: i32) usize {	766	pub fn epoll_wait(epoll_fd: i32, events: [*]epoll_event, maxevents: u32, timeout: i32) usize {
1440	return epoll_pwait(epoll_fd, events, maxevents, timeout, null);	767	return syscall4(
		768	SYS_epoll_wait,
		769	@bitCast(usize, isize(epoll_fd)),
		770	@ptrToInt(events),
		771	maxevents,
		772	@bitCast(usize, isize(timeout)),
		773	);
1441	}	774	}
1442		775
1443	pub fn epoll_pwait(epoll_fd: i32, events: []epoll_event, maxevents: u32, timeout: i32, sigmask: ?sigset_t) usize {	776	pub fn epoll_pwait(epoll_fd: i32, events: []epoll_event, maxevents: u32, timeout: i32, sigmask: ?sigset_t) usize {
...	@@ -1473,112 +806,6 @@ pub fn timerfd_settime(fd: i32, flags: u32, new_value: *const itimerspec, old_va	...	@@ -1473,112 +806,6 @@ pub fn timerfd_settime(fd: i32, flags: u32, new_value: *const itimerspec, old_va
1473	return syscall4(SYS_timerfd_settime, @bitCast(usize, isize(fd)), flags, @ptrToInt(new_value), @ptrToInt(old_value));	806	return syscall4(SYS_timerfd_settime, @bitCast(usize, isize(fd)), flags, @ptrToInt(new_value), @ptrToInt(old_value));
1474	}	807	}
1475		808
1476	pub const _LINUX_CAPABILITY_VERSION_1 = 0x19980330;
1477	pub const _LINUX_CAPABILITY_U32S_1 = 1;
1478
1479	pub const _LINUX_CAPABILITY_VERSION_2 = 0x20071026;
1480	pub const _LINUX_CAPABILITY_U32S_2 = 2;
1481
1482	pub const _LINUX_CAPABILITY_VERSION_3 = 0x20080522;
1483	pub const _LINUX_CAPABILITY_U32S_3 = 2;
1484
1485	pub const VFS_CAP_REVISION_MASK = 0xFF000000;
1486	pub const VFS_CAP_REVISION_SHIFT = 24;
1487	pub const VFS_CAP_FLAGS_MASK = ~VFS_CAP_REVISION_MASK;
1488	pub const VFS_CAP_FLAGS_EFFECTIVE = 0x000001;
1489
1490	pub const VFS_CAP_REVISION_1 = 0x01000000;
1491	pub const VFS_CAP_U32_1 = 1;
1492	pub const XATTR_CAPS_SZ_1 = @sizeOf(u32) * (1 + 2 * VFS_CAP_U32_1);
1493
1494	pub const VFS_CAP_REVISION_2 = 0x02000000;
1495	pub const VFS_CAP_U32_2 = 2;
1496	pub const XATTR_CAPS_SZ_2 = @sizeOf(u32) * (1 + 2 * VFS_CAP_U32_2);
1497
1498	pub const XATTR_CAPS_SZ = XATTR_CAPS_SZ_2;
1499	pub const VFS_CAP_U32 = VFS_CAP_U32_2;
1500	pub const VFS_CAP_REVISION = VFS_CAP_REVISION_2;
1501
1502	pub const vfs_cap_data = extern struct {
1503	//all of these are mandated as little endian
1504	//when on disk.
1505	const Data = struct {
1506	permitted: u32,
1507	inheritable: u32,
1508	};
1509
1510	magic_etc: u32,
1511	data: [VFS_CAP_U32]Data,
1512	};
1513
1514	pub const CAP_CHOWN = 0;
1515	pub const CAP_DAC_OVERRIDE = 1;
1516	pub const CAP_DAC_READ_SEARCH = 2;
1517	pub const CAP_FOWNER = 3;
1518	pub const CAP_FSETID = 4;
1519	pub const CAP_KILL = 5;
1520	pub const CAP_SETGID = 6;
1521	pub const CAP_SETUID = 7;
1522	pub const CAP_SETPCAP = 8;
1523	pub const CAP_LINUX_IMMUTABLE = 9;
1524	pub const CAP_NET_BIND_SERVICE = 10;
1525	pub const CAP_NET_BROADCAST = 11;
1526	pub const CAP_NET_ADMIN = 12;
1527	pub const CAP_NET_RAW = 13;
1528	pub const CAP_IPC_LOCK = 14;
1529	pub const CAP_IPC_OWNER = 15;
1530	pub const CAP_SYS_MODULE = 16;
1531	pub const CAP_SYS_RAWIO = 17;
1532	pub const CAP_SYS_CHROOT = 18;
1533	pub const CAP_SYS_PTRACE = 19;
1534	pub const CAP_SYS_PACCT = 20;
1535	pub const CAP_SYS_ADMIN = 21;
1536	pub const CAP_SYS_BOOT = 22;
1537	pub const CAP_SYS_NICE = 23;
1538	pub const CAP_SYS_RESOURCE = 24;
1539	pub const CAP_SYS_TIME = 25;
1540	pub const CAP_SYS_TTY_CONFIG = 26;
1541	pub const CAP_MKNOD = 27;
1542	pub const CAP_LEASE = 28;
1543	pub const CAP_AUDIT_WRITE = 29;
1544	pub const CAP_AUDIT_CONTROL = 30;
1545	pub const CAP_SETFCAP = 31;
1546	pub const CAP_MAC_OVERRIDE = 32;
1547	pub const CAP_MAC_ADMIN = 33;
1548	pub const CAP_SYSLOG = 34;
1549	pub const CAP_WAKE_ALARM = 35;
1550	pub const CAP_BLOCK_SUSPEND = 36;
1551	pub const CAP_AUDIT_READ = 37;
1552	pub const CAP_LAST_CAP = CAP_AUDIT_READ;
1553
1554	pub fn cap_valid(u8: x) bool {
1555	return x >= 0 and x <= CAP_LAST_CAP;
1556	}
1557
1558	pub fn CAP_TO_MASK(cap: u8) u32 {
1559	return u32(1) << u5(cap & 31);
1560	}
1561
1562	pub fn CAP_TO_INDEX(cap: u8) u8 {
1563	return cap >> 5;
1564	}
1565
1566	pub const cap_t = extern struct {
1567	hdrp: *cap_user_header_t,
1568	datap: *cap_user_data_t,
1569	};
1570
1571	pub const cap_user_header_t = extern struct {
1572	version: u32,
1573	pid: usize,
1574	};
1575
1576	pub const cap_user_data_t = extern struct {
1577	effective: u32,
1578	permitted: u32,
1579	inheritable: u32,
1580	};
1581
1582	pub fn unshare(flags: usize) usize {	809	pub fn unshare(flags: usize) usize {
1583	return syscall1(SYS_unshare, flags);	810	return syscall1(SYS_unshare, flags);
1584	}	811	}
...	@@ -1591,29 +818,6 @@ pub fn capset(hdrp: cap_user_header_t, datap: const cap_user_data_t) usize {	...	@@ -1591,29 +818,6 @@ pub fn capset(hdrp: cap_user_header_t, datap: const cap_user_data_t) usize {
1591	return syscall2(SYS_capset, @ptrToInt(hdrp), @ptrToInt(datap));	818	return syscall2(SYS_capset, @ptrToInt(hdrp), @ptrToInt(datap));
1592	}	819	}
1593		820
1594	pub const inotify_event = extern struct {
1595	wd: i32,
1596	mask: u32,
1597	cookie: u32,
1598	len: u32,
1599	//name: [?]u8,
1600	};
1601
1602	pub const dirent64 = extern struct {
1603	d_ino: u64,
1604	d_off: u64,
1605	d_reclen: u16,
1606	d_type: u8,
1607	d_name: u8, // field address is the address of first byte of name https://github.com/ziglang/zig/issues/173
1608	};
1609
1610	pub const dl_phdr_info = extern struct {
1611	dlpi_addr: usize,
1612	dlpi_name: ?[*]const u8,
1613	dlpi_phdr: [*]elf.Phdr,
1614	dlpi_phnum: u16,
1615	};
1616
1617	// XXX: This should be weak	821	// XXX: This should be weak
1618	extern const __ehdr_start: elf.Ehdr = undefined;	822	extern const __ehdr_start: elf.Ehdr = undefined;
1619		823
...	@@ -1671,8 +875,8 @@ pub fn dl_iterate_phdr(comptime T: type, callback: extern fn (info: *dl_phdr_inf	...	@@ -1671,8 +875,8 @@ pub fn dl_iterate_phdr(comptime T: type, callback: extern fn (info: *dl_phdr_inf
1671	return last_r;	875	return last_r;
1672	}	876	}
1673		877
1674	test "import" {	878	test "" {
1675	if (builtin.os == builtin.Os.linux) {	879	if (is_the_target) {
1676	_ = @import("linux/test.zig");	880	_ = @import("linux/test.zig");
1677	}	881	}
1678	}	882	}

std/os/linux/arm64.zig-403

...	@@ -1,344 +1,3 @@	...	@@ -1,344 +1,3 @@
1	const std = @import("../../std.zig");
2	const linux = std.os.linux;
3	const socklen_t = linux.socklen_t;
4	const iovec = linux.iovec;
5	const iovec_const = linux.iovec_const;
6
7	pub const SYS_io_setup = 0;
8	pub const SYS_io_destroy = 1;
9	pub const SYS_io_submit = 2;
10	pub const SYS_io_cancel = 3;
11	pub const SYS_io_getevents = 4;
12	pub const SYS_setxattr = 5;
13	pub const SYS_lsetxattr = 6;
14	pub const SYS_fsetxattr = 7;
15	pub const SYS_getxattr = 8;
16	pub const SYS_lgetxattr = 9;
17	pub const SYS_fgetxattr = 10;
18	pub const SYS_listxattr = 11;
19	pub const SYS_llistxattr = 12;
20	pub const SYS_flistxattr = 13;
21	pub const SYS_removexattr = 14;
22	pub const SYS_lremovexattr = 15;
23	pub const SYS_fremovexattr = 16;
24	pub const SYS_getcwd = 17;
25	pub const SYS_lookup_dcookie = 18;
26	pub const SYS_eventfd2 = 19;
27	pub const SYS_epoll_create1 = 20;
28	pub const SYS_epoll_ctl = 21;
29	pub const SYS_epoll_pwait = 22;
30	pub const SYS_dup = 23;
31	pub const SYS_dup3 = 24;
32	pub const SYS_fcntl = 25;
33	pub const SYS_inotify_init1 = 26;
34	pub const SYS_inotify_add_watch = 27;
35	pub const SYS_inotify_rm_watch = 28;
36	pub const SYS_ioctl = 29;
37	pub const SYS_ioprio_set = 30;
38	pub const SYS_ioprio_get = 31;
39	pub const SYS_flock = 32;
40	pub const SYS_mknodat = 33;
41	pub const SYS_mkdirat = 34;
42	pub const SYS_unlinkat = 35;
43	pub const SYS_symlinkat = 36;
44	pub const SYS_linkat = 37;
45	pub const SYS_renameat = 38;
46	pub const SYS_umount2 = 39;
47	pub const SYS_mount = 40;
48	pub const SYS_pivot_root = 41;
49	pub const SYS_nfsservctl = 42;
50	pub const SYS_statfs = 43;
51	pub const SYS_fstatfs = 44;
52	pub const SYS_truncate = 45;
53	pub const SYS_ftruncate = 46;
54	pub const SYS_fallocate = 47;
55	pub const SYS_faccessat = 48;
56	pub const SYS_chdir = 49;
57	pub const SYS_fchdir = 50;
58	pub const SYS_chroot = 51;
59	pub const SYS_fchmod = 52;
60	pub const SYS_fchmodat = 53;
61	pub const SYS_fchownat = 54;
62	pub const SYS_fchown = 55;
63	pub const SYS_openat = 56;
64	pub const SYS_close = 57;
65	pub const SYS_vhangup = 58;
66	pub const SYS_pipe2 = 59;
67	pub const SYS_quotactl = 60;
68	pub const SYS_getdents64 = 61;
69	pub const SYS_lseek = 62;
70	pub const SYS_read = 63;
71	pub const SYS_write = 64;
72	pub const SYS_readv = 65;
73	pub const SYS_writev = 66;
74	pub const SYS_pread64 = 67;
75	pub const SYS_pwrite64 = 68;
76	pub const SYS_preadv = 69;
77	pub const SYS_pwritev = 70;
78	pub const SYS_pselect6 = 72;
79	pub const SYS_ppoll = 73;
80	pub const SYS_signalfd4 = 74;
81	pub const SYS_vmsplice = 75;
82	pub const SYS_splice = 76;
83	pub const SYS_tee = 77;
84	pub const SYS_readlinkat = 78;
85	pub const SYS_fstatat = 79;
86	pub const SYS_fstat = 80;
87	pub const SYS_sync = 81;
88	pub const SYS_fsync = 82;
89	pub const SYS_fdatasync = 83;
90	pub const SYS_sync_file_range2 = 84;
91	pub const SYS_sync_file_range = 84;
92	pub const SYS_timerfd_create = 85;
93	pub const SYS_timerfd_settime = 86;
94	pub const SYS_timerfd_gettime = 87;
95	pub const SYS_utimensat = 88;
96	pub const SYS_acct = 89;
97	pub const SYS_capget = 90;
98	pub const SYS_capset = 91;
99	pub const SYS_personality = 92;
100	pub const SYS_exit = 93;
101	pub const SYS_exit_group = 94;
102	pub const SYS_waitid = 95;
103	pub const SYS_set_tid_address = 96;
104	pub const SYS_unshare = 97;
105	pub const SYS_futex = 98;
106	pub const SYS_set_robust_list = 99;
107	pub const SYS_get_robust_list = 100;
108	pub const SYS_nanosleep = 101;
109	pub const SYS_getitimer = 102;
110	pub const SYS_setitimer = 103;
111	pub const SYS_kexec_load = 104;
112	pub const SYS_init_module = 105;
113	pub const SYS_delete_module = 106;
114	pub const SYS_timer_create = 107;
115	pub const SYS_timer_gettime = 108;
116	pub const SYS_timer_getoverrun = 109;
117	pub const SYS_timer_settime = 110;
118	pub const SYS_timer_delete = 111;
119	pub const SYS_clock_settime = 112;
120	pub const SYS_clock_gettime = 113;
121	pub const SYS_clock_getres = 114;
122	pub const SYS_clock_nanosleep = 115;
123	pub const SYS_syslog = 116;
124	pub const SYS_ptrace = 117;
125	pub const SYS_sched_setparam = 118;
126	pub const SYS_sched_setscheduler = 119;
127	pub const SYS_sched_getscheduler = 120;
128	pub const SYS_sched_getparam = 121;
129	pub const SYS_sched_setaffinity = 122;
130	pub const SYS_sched_getaffinity = 123;
131	pub const SYS_sched_yield = 124;
132	pub const SYS_sched_get_priority_max = 125;
133	pub const SYS_sched_get_priority_min = 126;
134	pub const SYS_sched_rr_get_interval = 127;
135	pub const SYS_restart_syscall = 128;
136	pub const SYS_kill = 129;
137	pub const SYS_tkill = 130;
138	pub const SYS_tgkill = 131;
139	pub const SYS_sigaltstack = 132;
140	pub const SYS_rt_sigsuspend = 133;
141	pub const SYS_rt_sigaction = 134;
142	pub const SYS_rt_sigprocmask = 135;
143	pub const SYS_rt_sigpending = 136;
144	pub const SYS_rt_sigtimedwait = 137;
145	pub const SYS_rt_sigqueueinfo = 138;
146	pub const SYS_rt_sigreturn = 139;
147	pub const SYS_setpriority = 140;
148	pub const SYS_getpriority = 141;
149	pub const SYS_reboot = 142;
150	pub const SYS_setregid = 143;
151	pub const SYS_setgid = 144;
152	pub const SYS_setreuid = 145;
153	pub const SYS_setuid = 146;
154	pub const SYS_setresuid = 147;
155	pub const SYS_getresuid = 148;
156	pub const SYS_setresgid = 149;
157	pub const SYS_getresgid = 150;
158	pub const SYS_setfsuid = 151;
159	pub const SYS_setfsgid = 152;
160	pub const SYS_times = 153;
161	pub const SYS_setpgid = 154;
162	pub const SYS_getpgid = 155;
163	pub const SYS_getsid = 156;
164	pub const SYS_setsid = 157;
165	pub const SYS_getgroups = 158;
166	pub const SYS_setgroups = 159;
167	pub const SYS_uname = 160;
168	pub const SYS_sethostname = 161;
169	pub const SYS_setdomainname = 162;
170	pub const SYS_getrlimit = 163;
171	pub const SYS_setrlimit = 164;
172	pub const SYS_getrusage = 165;
173	pub const SYS_umask = 166;
174	pub const SYS_prctl = 167;
175	pub const SYS_getcpu = 168;
176	pub const SYS_gettimeofday = 169;
177	pub const SYS_settimeofday = 170;
178	pub const SYS_adjtimex = 171;
179	pub const SYS_getpid = 172;
180	pub const SYS_getppid = 173;
181	pub const SYS_getuid = 174;
182	pub const SYS_geteuid = 175;
183	pub const SYS_getgid = 176;
184	pub const SYS_getegid = 177;
185	pub const SYS_gettid = 178;
186	pub const SYS_sysinfo = 179;
187	pub const SYS_mq_open = 180;
188	pub const SYS_mq_unlink = 181;
189	pub const SYS_mq_timedsend = 182;
190	pub const SYS_mq_timedreceive = 183;
191	pub const SYS_mq_notify = 184;
192	pub const SYS_mq_getsetattr = 185;
193	pub const SYS_msgget = 186;
194	pub const SYS_msgctl = 187;
195	pub const SYS_msgrcv = 188;
196	pub const SYS_msgsnd = 189;
197	pub const SYS_semget = 190;
198	pub const SYS_semctl = 191;
199	pub const SYS_semtimedop = 192;
200	pub const SYS_semop = 193;
201	pub const SYS_shmget = 194;
202	pub const SYS_shmctl = 195;
203	pub const SYS_shmat = 196;
204	pub const SYS_shmdt = 197;
205	pub const SYS_socket = 198;
206	pub const SYS_socketpair = 199;
207	pub const SYS_bind = 200;
208	pub const SYS_listen = 201;
209	pub const SYS_accept = 202;
210	pub const SYS_connect = 203;
211	pub const SYS_getsockname = 204;
212	pub const SYS_getpeername = 205;
213	pub const SYS_sendto = 206;
214	pub const SYS_recvfrom = 207;
215	pub const SYS_setsockopt = 208;
216	pub const SYS_getsockopt = 209;
217	pub const SYS_shutdown = 210;
218	pub const SYS_sendmsg = 211;
219	pub const SYS_recvmsg = 212;
220	pub const SYS_readahead = 213;
221	pub const SYS_brk = 214;
222	pub const SYS_munmap = 215;
223	pub const SYS_mremap = 216;
224	pub const SYS_add_key = 217;
225	pub const SYS_request_key = 218;
226	pub const SYS_keyctl = 219;
227	pub const SYS_clone = 220;
228	pub const SYS_execve = 221;
229	pub const SYS_mmap = 222;
230	pub const SYS_fadvise64 = 223;
231	pub const SYS_swapon = 224;
232	pub const SYS_swapoff = 225;
233	pub const SYS_mprotect = 226;
234	pub const SYS_msync = 227;
235	pub const SYS_mlock = 228;
236	pub const SYS_munlock = 229;
237	pub const SYS_mlockall = 230;
238	pub const SYS_munlockall = 231;
239	pub const SYS_mincore = 232;
240	pub const SYS_madvise = 233;
241	pub const SYS_remap_file_pages = 234;
242	pub const SYS_mbind = 235;
243	pub const SYS_get_mempolicy = 236;
244	pub const SYS_set_mempolicy = 237;
245	pub const SYS_migrate_pages = 238;
246	pub const SYS_move_pages = 239;
247	pub const SYS_rt_tgsigqueueinfo = 240;
248	pub const SYS_perf_event_open = 241;
249	pub const SYS_accept4 = 242;
250	pub const SYS_recvmmsg = 243;
251	pub const SYS_arch_specific_syscall = 244;
252	pub const SYS_wait4 = 260;
253	pub const SYS_prlimit64 = 261;
254	pub const SYS_fanotify_init = 262;
255	pub const SYS_fanotify_mark = 263;
256	pub const SYS_clock_adjtime = 266;
257	pub const SYS_syncfs = 267;
258	pub const SYS_setns = 268;
259	pub const SYS_sendmmsg = 269;
260	pub const SYS_process_vm_readv = 270;
261	pub const SYS_process_vm_writev = 271;
262	pub const SYS_kcmp = 272;
263	pub const SYS_finit_module = 273;
264	pub const SYS_sched_setattr = 274;
265	pub const SYS_sched_getattr = 275;
266	pub const SYS_renameat2 = 276;
267	pub const SYS_seccomp = 277;
268	pub const SYS_getrandom = 278;
269	pub const SYS_memfd_create = 279;
270	pub const SYS_bpf = 280;
271	pub const SYS_execveat = 281;
272	pub const SYS_userfaultfd = 282;
273	pub const SYS_membarrier = 283;
274	pub const SYS_mlock2 = 284;
275	pub const SYS_copy_file_range = 285;
276	pub const SYS_preadv2 = 286;
277	pub const SYS_pwritev2 = 287;
278	pub const SYS_pkey_mprotect = 288;
279	pub const SYS_pkey_alloc = 289;
280	pub const SYS_pkey_free = 290;
281	pub const SYS_statx = 291;
282	pub const SYS_io_pgetevents = 292;
283	pub const SYS_rseq = 293;
284	pub const SYS_kexec_file_load = 294;
285	pub const SYS_pidfd_send_signal = 424;
286	pub const SYS_io_uring_setup = 425;
287	pub const SYS_io_uring_enter = 426;
288	pub const SYS_io_uring_register = 427;
289
290	pub const O_CREAT = 0o100;
291	pub const O_EXCL = 0o200;
292	pub const O_NOCTTY = 0o400;
293	pub const O_TRUNC = 0o1000;
294	pub const O_APPEND = 0o2000;
295	pub const O_NONBLOCK = 0o4000;
296	pub const O_DSYNC = 0o10000;
297	pub const O_SYNC = 0o4010000;
298	pub const O_RSYNC = 0o4010000;
299	pub const O_DIRECTORY = 0o200000;
300	pub const O_NOFOLLOW = 0o400000;
301	pub const O_CLOEXEC = 0o2000000;
302
303	pub const O_ASYNC = 0o20000;
304	pub const O_DIRECT = 0o40000;
305	pub const O_LARGEFILE = 0;
306	pub const O_NOATIME = 0o1000000;
307	pub const O_PATH = 0o10000000;
308	pub const O_TMPFILE = 0o20200000;
309	pub const O_NDELAY = O_NONBLOCK;
310
311	pub const F_DUPFD = 0;
312	pub const F_GETFD = 1;
313	pub const F_SETFD = 2;
314	pub const F_GETFL = 3;
315	pub const F_SETFL = 4;
316
317	pub const F_SETOWN = 8;
318	pub const F_GETOWN = 9;
319	pub const F_SETSIG = 10;
320	pub const F_GETSIG = 11;
321
322	pub const F_GETLK = 5;
323	pub const F_SETLK = 6;
324	pub const F_SETLKW = 7;
325
326	pub const F_SETOWN_EX = 15;
327	pub const F_GETOWN_EX = 16;
328
329	pub const F_GETOWNER_UIDS = 17;
330
331	pub const AT_FDCWD = -100;
332	pub const AT_SYMLINK_NOFOLLOW = 0x100;
333	pub const AT_REMOVEDIR = 0x200;
334	pub const AT_SYMLINK_FOLLOW = 0x400;
335	pub const AT_NO_AUTOMOUNT = 0x800;
336	pub const AT_EMPTY_PATH = 0x1000;
337
338	pub const VDSO_USEFUL = true;
339	pub const VDSO_CGT_SYM = "__kernel_clock_gettime";
340	pub const VDSO_CGT_VER = "LINUX_2.6.39";
341
342	pub fn syscall0(number: usize) usize {	1	pub fn syscall0(number: usize) usize {
343	return asm volatile ("svc #0"	2	return asm volatile ("svc #0"
344	: [ret] "={x0}" (-> usize)	3	: [ret] "={x0}" (-> usize)
...	@@ -419,65 +78,3 @@ pub fn syscall6(	...	@@ -419,65 +78,3 @@ pub fn syscall6(
419		78
420	/// This matches the libc clone function.	79	/// This matches the libc clone function.
421	pub extern fn clone(func: extern fn (arg: usize) u8, stack: usize, flags: u32, arg: usize, ptid: i32, tls: usize, ctid: i32) usize;	80	pub extern fn clone(func: extern fn (arg: usize) u8, stack: usize, flags: u32, arg: usize, ptid: i32, tls: usize, ctid: i32) usize;
422
423	pub const msghdr = extern struct {
424	msg_name: ?*sockaddr,
425	msg_namelen: socklen_t,
426	msg_iov: [*]iovec,
427	msg_iovlen: i32,
428	__pad1: i32,
429	msg_control: ?*c_void,
430	msg_controllen: socklen_t,
431	__pad2: socklen_t,
432	msg_flags: i32,
433	};
434
435	pub const msghdr_const = extern struct {
436	msg_name: ?*const sockaddr,
437	msg_namelen: socklen_t,
438	msg_iov: [*]iovec_const,
439	msg_iovlen: i32,
440	__pad1: i32,
441	msg_control: ?*c_void,
442	msg_controllen: socklen_t,
443	__pad2: socklen_t,
444	msg_flags: i32,
445	};
446
447	/// Renamed to Stat to not conflict with the stat function.
448	pub const Stat = extern struct {
449	dev: u64,
450	ino: u64,
451	nlink: usize,
452
453	mode: u32,
454	uid: u32,
455	gid: u32,
456	__pad0: u32,
457	rdev: u64,
458	size: i64,
459	blksize: isize,
460	blocks: i64,
461
462	atim: timespec,
463	mtim: timespec,
464	ctim: timespec,
465	__unused: [3]isize,
466	};
467
468	pub const timespec = extern struct {
469	tv_sec: isize,
470	tv_nsec: isize,
471	};
472
473	pub const timeval = extern struct {
474	tv_sec: isize,
475	tv_usec: isize,
476	};
477
478	pub const timezone = extern struct {
479	tz_minuteswest: i32,
480	tz_dsttime: i32,
481	};
482
483	pub const Elf_Symndx = u32;

std/os/linux/errno.zig deleted-427

...	@@ -1,427 +0,0 @@
1	/// Operation not permitted
2	pub const EPERM = 1;
3
4	/// No such file or directory
5	pub const ENOENT = 2;
6
7	/// No such process
8	pub const ESRCH = 3;
9
10	/// Interrupted system call
11	pub const EINTR = 4;
12
13	/// I/O error
14	pub const EIO = 5;
15
16	/// No such device or address
17	pub const ENXIO = 6;
18
19	/// Arg list too long
20	pub const E2BIG = 7;
21
22	/// Exec format error
23	pub const ENOEXEC = 8;
24
25	/// Bad file number
26	pub const EBADF = 9;
27
28	/// No child processes
29	pub const ECHILD = 10;
30
31	/// Try again
32	pub const EAGAIN = 11;
33
34	/// Out of memory
35	pub const ENOMEM = 12;
36
37	/// Permission denied
38	pub const EACCES = 13;
39
40	/// Bad address
41	pub const EFAULT = 14;
42
43	/// Block device required
44	pub const ENOTBLK = 15;
45
46	/// Device or resource busy
47	pub const EBUSY = 16;
48
49	/// File exists
50	pub const EEXIST = 17;
51
52	/// Cross-device link
53	pub const EXDEV = 18;
54
55	/// No such device
56	pub const ENODEV = 19;
57
58	/// Not a directory
59	pub const ENOTDIR = 20;
60
61	/// Is a directory
62	pub const EISDIR = 21;
63
64	/// Invalid argument
65	pub const EINVAL = 22;
66
67	/// File table overflow
68	pub const ENFILE = 23;
69
70	/// Too many open files
71	pub const EMFILE = 24;
72
73	/// Not a typewriter
74	pub const ENOTTY = 25;
75
76	/// Text file busy
77	pub const ETXTBSY = 26;
78
79	/// File too large
80	pub const EFBIG = 27;
81
82	/// No space left on device
83	pub const ENOSPC = 28;
84
85	/// Illegal seek
86	pub const ESPIPE = 29;
87
88	/// Read-only file system
89	pub const EROFS = 30;
90
91	/// Too many links
92	pub const EMLINK = 31;
93
94	/// Broken pipe
95	pub const EPIPE = 32;
96
97	/// Math argument out of domain of func
98	pub const EDOM = 33;
99
100	/// Math result not representable
101	pub const ERANGE = 34;
102
103	/// Resource deadlock would occur
104	pub const EDEADLK = 35;
105
106	/// File name too long
107	pub const ENAMETOOLONG = 36;
108
109	/// No record locks available
110	pub const ENOLCK = 37;
111
112	/// Function not implemented
113	pub const ENOSYS = 38;
114
115	/// Directory not empty
116	pub const ENOTEMPTY = 39;
117
118	/// Too many symbolic links encountered
119	pub const ELOOP = 40;
120
121	/// Operation would block
122	pub const EWOULDBLOCK = EAGAIN;
123
124	/// No message of desired type
125	pub const ENOMSG = 42;
126
127	/// Identifier removed
128	pub const EIDRM = 43;
129
130	/// Channel number out of range
131	pub const ECHRNG = 44;
132
133	/// Level 2 not synchronized
134	pub const EL2NSYNC = 45;
135
136	/// Level 3 halted
137	pub const EL3HLT = 46;
138
139	/// Level 3 reset
140	pub const EL3RST = 47;
141
142	/// Link number out of range
143	pub const ELNRNG = 48;
144
145	/// Protocol driver not attached
146	pub const EUNATCH = 49;
147
148	/// No CSI structure available
149	pub const ENOCSI = 50;
150
151	/// Level 2 halted
152	pub const EL2HLT = 51;
153
154	/// Invalid exchange
155	pub const EBADE = 52;
156
157	/// Invalid request descriptor
158	pub const EBADR = 53;
159
160	/// Exchange full
161	pub const EXFULL = 54;
162
163	/// No anode
164	pub const ENOANO = 55;
165
166	/// Invalid request code
167	pub const EBADRQC = 56;
168
169	/// Invalid slot
170	pub const EBADSLT = 57;
171
172	/// Bad font file format
173	pub const EBFONT = 59;
174
175	/// Device not a stream
176	pub const ENOSTR = 60;
177
178	/// No data available
179	pub const ENODATA = 61;
180
181	/// Timer expired
182	pub const ETIME = 62;
183
184	/// Out of streams resources
185	pub const ENOSR = 63;
186
187	/// Machine is not on the network
188	pub const ENONET = 64;
189
190	/// Package not installed
191	pub const ENOPKG = 65;
192
193	/// Object is remote
194	pub const EREMOTE = 66;
195
196	/// Link has been severed
197	pub const ENOLINK = 67;
198
199	/// Advertise error
200	pub const EADV = 68;
201
202	/// Srmount error
203	pub const ESRMNT = 69;
204
205	/// Communication error on send
206	pub const ECOMM = 70;
207
208	/// Protocol error
209	pub const EPROTO = 71;
210
211	/// Multihop attempted
212	pub const EMULTIHOP = 72;
213
214	/// RFS specific error
215	pub const EDOTDOT = 73;
216
217	/// Not a data message
218	pub const EBADMSG = 74;
219
220	/// Value too large for defined data type
221	pub const EOVERFLOW = 75;
222
223	/// Name not unique on network
224	pub const ENOTUNIQ = 76;
225
226	/// File descriptor in bad state
227	pub const EBADFD = 77;
228
229	/// Remote address changed
230	pub const EREMCHG = 78;
231
232	/// Can not access a needed shared library
233	pub const ELIBACC = 79;
234
235	/// Accessing a corrupted shared library
236	pub const ELIBBAD = 80;
237
238	/// .lib section in a.out corrupted
239	pub const ELIBSCN = 81;
240
241	/// Attempting to link in too many shared libraries
242	pub const ELIBMAX = 82;
243
244	/// Cannot exec a shared library directly
245	pub const ELIBEXEC = 83;
246
247	/// Illegal byte sequence
248	pub const EILSEQ = 84;
249
250	/// Interrupted system call should be restarted
251	pub const ERESTART = 85;
252
253	/// Streams pipe error
254	pub const ESTRPIPE = 86;
255
256	/// Too many users
257	pub const EUSERS = 87;
258
259	/// Socket operation on non-socket
260	pub const ENOTSOCK = 88;
261
262	/// Destination address required
263	pub const EDESTADDRREQ = 89;
264
265	/// Message too long
266	pub const EMSGSIZE = 90;
267
268	/// Protocol wrong type for socket
269	pub const EPROTOTYPE = 91;
270
271	/// Protocol not available
272	pub const ENOPROTOOPT = 92;
273
274	/// Protocol not supported
275	pub const EPROTONOSUPPORT = 93;
276
277	/// Socket type not supported
278	pub const ESOCKTNOSUPPORT = 94;
279
280	/// Operation not supported on transport endpoint
281	pub const EOPNOTSUPP = 95;
282
283	/// Protocol family not supported
284	pub const EPFNOSUPPORT = 96;
285
286	/// Address family not supported by protocol
287	pub const EAFNOSUPPORT = 97;
288
289	/// Address already in use
290	pub const EADDRINUSE = 98;
291
292	/// Cannot assign requested address
293	pub const EADDRNOTAVAIL = 99;
294
295	/// Network is down
296	pub const ENETDOWN = 100;
297
298	/// Network is unreachable
299	pub const ENETUNREACH = 101;
300
301	/// Network dropped connection because of reset
302	pub const ENETRESET = 102;
303
304	/// Software caused connection abort
305	pub const ECONNABORTED = 103;
306
307	/// Connection reset by peer
308	pub const ECONNRESET = 104;
309
310	/// No buffer space available
311	pub const ENOBUFS = 105;
312
313	/// Transport endpoint is already connected
314	pub const EISCONN = 106;
315
316	/// Transport endpoint is not connected
317	pub const ENOTCONN = 107;
318
319	/// Cannot send after transport endpoint shutdown
320	pub const ESHUTDOWN = 108;
321
322	/// Too many references: cannot splice
323	pub const ETOOMANYREFS = 109;
324
325	/// Connection timed out
326	pub const ETIMEDOUT = 110;
327
328	/// Connection refused
329	pub const ECONNREFUSED = 111;
330
331	/// Host is down
332	pub const EHOSTDOWN = 112;
333
334	/// No route to host
335	pub const EHOSTUNREACH = 113;
336
337	/// Operation already in progress
338	pub const EALREADY = 114;
339
340	/// Operation now in progress
341	pub const EINPROGRESS = 115;
342
343	/// Stale NFS file handle
344	pub const ESTALE = 116;
345
346	/// Structure needs cleaning
347	pub const EUCLEAN = 117;
348
349	/// Not a XENIX named type file
350	pub const ENOTNAM = 118;
351
352	/// No XENIX semaphores available
353	pub const ENAVAIL = 119;
354
355	/// Is a named type file
356	pub const EISNAM = 120;
357
358	/// Remote I/O error
359	pub const EREMOTEIO = 121;
360
361	/// Quota exceeded
362	pub const EDQUOT = 122;
363
364	/// No medium found
365	pub const ENOMEDIUM = 123;
366
367	/// Wrong medium type
368	pub const EMEDIUMTYPE = 124;
369
370	// nameserver query return codes
371
372	/// DNS server returned answer with no data
373	pub const ENSROK = 0;
374
375	/// DNS server returned answer with no data
376	pub const ENSRNODATA = 160;
377
378	/// DNS server claims query was misformatted
379	pub const ENSRFORMERR = 161;
380
381	/// DNS server returned general failure
382	pub const ENSRSERVFAIL = 162;
383
384	/// Domain name not found
385	pub const ENSRNOTFOUND = 163;
386
387	/// DNS server does not implement requested operation
388	pub const ENSRNOTIMP = 164;
389
390	/// DNS server refused query
391	pub const ENSRREFUSED = 165;
392
393	/// Misformatted DNS query
394	pub const ENSRBADQUERY = 166;
395
396	/// Misformatted domain name
397	pub const ENSRBADNAME = 167;
398
399	/// Unsupported address family
400	pub const ENSRBADFAMILY = 168;
401
402	/// Misformatted DNS reply
403	pub const ENSRBADRESP = 169;
404
405	/// Could not contact DNS servers
406	pub const ENSRCONNREFUSED = 170;
407
408	/// Timeout while contacting DNS servers
409	pub const ENSRTIMEOUT = 171;
410
411	/// End of file
412	pub const ENSROF = 172;
413
414	/// Error reading file
415	pub const ENSRFILE = 173;
416
417	/// Out of memory
418	pub const ENSRNOMEM = 174;
419
420	/// Application terminated lookup
421	pub const ENSRDESTRUCTION = 175;
422
423	/// Domain name is too long
424	pub const ENSRQUERYDOMAINTOOLONG = 176;
425
426	/// Domain name is too long
427	pub const ENSRCNAMELOOP = 177;

std/os/linux/test.zig+1-1

...	@@ -11,7 +11,7 @@ test "getpid" {	...	@@ -11,7 +11,7 @@ test "getpid" {
11		11
12	test "timer" {	12	test "timer" {
13	const epoll_fd = linux.epoll_create();	13	const epoll_fd = linux.epoll_create();
14	var err = linux.getErrno(epoll_fd);	14	var err: usize = linux.getErrno(epoll_fd);
15	expect(err == 0);	15	expect(err == 0);
16		16
17	const timer_fd = linux.timerfd_create(linux.CLOCK_MONOTONIC, 0);	17	const timer_fd = linux.timerfd_create(linux.CLOCK_MONOTONIC, 0);

std/os/linux/tls.zig+11-6

 @@ -1,6 +1,6 @@
 const std = @import("std");
+const os = std.os;
 const mem = std.mem;
-const posix = std.os.posix;
 const elf = std.elf;
 const builtin = @import("builtin");
 const assert = std.debug.assert;
 @@ -126,7 +126,7 @@ pub fn initTLS() void {
     var tls_phdr: ?*elf.Phdr = null;
     var img_base: usize = 0;
-    const auxv = std.os.linux_elf_aux_maybe.?;
+    const auxv = std.os.linux.elf_aux_maybe.?;
     var at_phent: usize = undefined;
     var at_phnum: usize = undefined;
     var at_phdr: usize = undefined;
 @@ -237,9 +237,14 @@ pub fn allocateTLS(size: usize) usize {
         return @ptrToInt(&main_thread_tls_buffer);
     }
-    const addr = posix.mmap(null, size, posix.PROT_READ | posix.PROT_WRITE, posix.MAP_PRIVATE | posix.MAP_ANONYMOUS, -1, 0);
+    const slice = os.mmap(
+        null,
+        size,
+        os.PROT_READ | os.PROT_WRITE,
+        os.MAP_PRIVATE | os.MAP_ANONYMOUS,
+        -1,
+        0,
+    ) catch @panic("out of memory");
-    if (posix.getErrno(addr) != 0) @panic("out of memory");
+    return @ptrToInt(slice.ptr);
-    return addr;
 }

std/os/linux/vdso.zig+3-4

...	@@ -1,12 +1,11 @@	...	@@ -1,12 +1,11 @@
1	const std = @import("../../std.zig");	1	const std = @import("../../std.zig");
2	const elf = std.elf;	2	const elf = std.elf;
3	const linux = std.os.linux;	3	const linux = std.os.linux;
4	const cstr = std.cstr;
5	const mem = std.mem;	4	const mem = std.mem;
6	const maxInt = std.math.maxInt;	5	const maxInt = std.math.maxInt;
7		6
8	pub fn lookup(vername: []const u8, name: []const u8) usize {	7	pub fn lookup(vername: []const u8, name: []const u8) usize {
9	const vdso_addr = std.os.linuxGetAuxVal(std.elf.AT_SYSINFO_EHDR);	8	const vdso_addr = std.os.system.getauxval(std.elf.AT_SYSINFO_EHDR);
10	if (vdso_addr == 0) return 0;	9	if (vdso_addr == 0) return 0;
11		10
12	const eh = @intToPtr(*elf.Ehdr, vdso_addr);	11	const eh = @intToPtr(*elf.Ehdr, vdso_addr);
...	@@ -66,7 +65,7 @@ pub fn lookup(vername: []const u8, name: []const u8) usize {	...	@@ -66,7 +65,7 @@ pub fn lookup(vername: []const u8, name: []const u8) usize {
66	if (0 == (u32(1) << @intCast(u5, syms[i].st_info & 0xf) & OK_TYPES)) continue;	65	if (0 == (u32(1) << @intCast(u5, syms[i].st_info & 0xf) & OK_TYPES)) continue;
67	if (0 == (u32(1) << @intCast(u5, syms[i].st_info >> 4) & OK_BINDS)) continue;	66	if (0 == (u32(1) << @intCast(u5, syms[i].st_info >> 4) & OK_BINDS)) continue;
68	if (0 == syms[i].st_shndx) continue;	67	if (0 == syms[i].st_shndx) continue;
69	if (!mem.eql(u8, name, cstr.toSliceConst(strings + syms[i].st_name))) continue;	68	if (!mem.eql(u8, name, mem.toSliceConst(u8, strings + syms[i].st_name))) continue;
70	if (maybe_versym) \|versym\| {	69	if (maybe_versym) \|versym\| {
71	if (!checkver(maybe_verdef.?, versym[i], vername, strings))	70	if (!checkver(maybe_verdef.?, versym[i], vername, strings))
72	continue;	71	continue;
...	@@ -88,5 +87,5 @@ fn checkver(def_arg: *elf.Verdef, vsym_arg: i32, vername: []const u8, strings: [	...	@@ -88,5 +87,5 @@ fn checkver(def_arg: *elf.Verdef, vsym_arg: i32, vername: []const u8, strings: [
88	def = @intToPtr(*elf.Verdef, @ptrToInt(def) + def.vd_next);	87	def = @intToPtr(*elf.Verdef, @ptrToInt(def) + def.vd_next);
89	}	88	}
90	const aux = @intToPtr(*elf.Verdaux, @ptrToInt(def) + def.vd_aux);	89	const aux = @intToPtr(*elf.Verdaux, @ptrToInt(def) + def.vd_aux);
91	return mem.eql(u8, vername, cstr.toSliceConst(strings + aux.vda_name));	90	return mem.eql(u8, vername, mem.toSliceConst(u8, strings + aux.vda_name));
92	}	91	}

std/os/linux/x86_64.zig+1-469

...	@@ -1,410 +1,4 @@	...	@@ -1,410 +1,4 @@
1	const std = @import("../../std.zig");	1	use @import("../bits.zig");
2	const linux = std.os.linux;
3	const sockaddr = linux.sockaddr;
4	const socklen_t = linux.socklen_t;
5	const iovec = linux.iovec;
6	const iovec_const = linux.iovec_const;
7
8	pub const SYS_read = 0;
9	pub const SYS_write = 1;
10	pub const SYS_open = 2;
11	pub const SYS_close = 3;
12	pub const SYS_stat = 4;
13	pub const SYS_fstat = 5;
14	pub const SYS_lstat = 6;
15	pub const SYS_poll = 7;
16	pub const SYS_lseek = 8;
17	pub const SYS_mmap = 9;
18	pub const SYS_mprotect = 10;
19	pub const SYS_munmap = 11;
20	pub const SYS_brk = 12;
21	pub const SYS_rt_sigaction = 13;
22	pub const SYS_rt_sigprocmask = 14;
23	pub const SYS_rt_sigreturn = 15;
24	pub const SYS_ioctl = 16;
25	pub const SYS_pread = 17;
26	pub const SYS_pwrite = 18;
27	pub const SYS_readv = 19;
28	pub const SYS_writev = 20;
29	pub const SYS_access = 21;
30	pub const SYS_pipe = 22;
31	pub const SYS_select = 23;
32	pub const SYS_sched_yield = 24;
33	pub const SYS_mremap = 25;
34	pub const SYS_msync = 26;
35	pub const SYS_mincore = 27;
36	pub const SYS_madvise = 28;
37	pub const SYS_shmget = 29;
38	pub const SYS_shmat = 30;
39	pub const SYS_shmctl = 31;
40	pub const SYS_dup = 32;
41	pub const SYS_dup2 = 33;
42	pub const SYS_pause = 34;
43	pub const SYS_nanosleep = 35;
44	pub const SYS_getitimer = 36;
45	pub const SYS_alarm = 37;
46	pub const SYS_setitimer = 38;
47	pub const SYS_getpid = 39;
48	pub const SYS_sendfile = 40;
49	pub const SYS_socket = 41;
50	pub const SYS_connect = 42;
51	pub const SYS_accept = 43;
52	pub const SYS_sendto = 44;
53	pub const SYS_recvfrom = 45;
54	pub const SYS_sendmsg = 46;
55	pub const SYS_recvmsg = 47;
56	pub const SYS_shutdown = 48;
57	pub const SYS_bind = 49;
58	pub const SYS_listen = 50;
59	pub const SYS_getsockname = 51;
60	pub const SYS_getpeername = 52;
61	pub const SYS_socketpair = 53;
62	pub const SYS_setsockopt = 54;
63	pub const SYS_getsockopt = 55;
64	pub const SYS_clone = 56;
65	pub const SYS_fork = 57;
66	pub const SYS_vfork = 58;
67	pub const SYS_execve = 59;
68	pub const SYS_exit = 60;
69	pub const SYS_wait4 = 61;
70	pub const SYS_kill = 62;
71	pub const SYS_uname = 63;
72	pub const SYS_semget = 64;
73	pub const SYS_semop = 65;
74	pub const SYS_semctl = 66;
75	pub const SYS_shmdt = 67;
76	pub const SYS_msgget = 68;
77	pub const SYS_msgsnd = 69;
78	pub const SYS_msgrcv = 70;
79	pub const SYS_msgctl = 71;
80	pub const SYS_fcntl = 72;
81	pub const SYS_flock = 73;
82	pub const SYS_fsync = 74;
83	pub const SYS_fdatasync = 75;
84	pub const SYS_truncate = 76;
85	pub const SYS_ftruncate = 77;
86	pub const SYS_getdents = 78;
87	pub const SYS_getcwd = 79;
88	pub const SYS_chdir = 80;
89	pub const SYS_fchdir = 81;
90	pub const SYS_rename = 82;
91	pub const SYS_mkdir = 83;
92	pub const SYS_rmdir = 84;
93	pub const SYS_creat = 85;
94	pub const SYS_link = 86;
95	pub const SYS_unlink = 87;
96	pub const SYS_symlink = 88;
97	pub const SYS_readlink = 89;
98	pub const SYS_chmod = 90;
99	pub const SYS_fchmod = 91;
100	pub const SYS_chown = 92;
101	pub const SYS_fchown = 93;
102	pub const SYS_lchown = 94;
103	pub const SYS_umask = 95;
104	pub const SYS_gettimeofday = 96;
105	pub const SYS_getrlimit = 97;
106	pub const SYS_getrusage = 98;
107	pub const SYS_sysinfo = 99;
108	pub const SYS_times = 100;
109	pub const SYS_ptrace = 101;
110	pub const SYS_getuid = 102;
111	pub const SYS_syslog = 103;
112	pub const SYS_getgid = 104;
113	pub const SYS_setuid = 105;
114	pub const SYS_setgid = 106;
115	pub const SYS_geteuid = 107;
116	pub const SYS_getegid = 108;
117	pub const SYS_setpgid = 109;
118	pub const SYS_getppid = 110;
119	pub const SYS_getpgrp = 111;
120	pub const SYS_setsid = 112;
121	pub const SYS_setreuid = 113;
122	pub const SYS_setregid = 114;
123	pub const SYS_getgroups = 115;
124	pub const SYS_setgroups = 116;
125	pub const SYS_setresuid = 117;
126	pub const SYS_getresuid = 118;
127	pub const SYS_setresgid = 119;
128	pub const SYS_getresgid = 120;
129	pub const SYS_getpgid = 121;
130	pub const SYS_setfsuid = 122;
131	pub const SYS_setfsgid = 123;
132	pub const SYS_getsid = 124;
133	pub const SYS_capget = 125;
134	pub const SYS_capset = 126;
135	pub const SYS_rt_sigpending = 127;
136	pub const SYS_rt_sigtimedwait = 128;
137	pub const SYS_rt_sigqueueinfo = 129;
138	pub const SYS_rt_sigsuspend = 130;
139	pub const SYS_sigaltstack = 131;
140	pub const SYS_utime = 132;
141	pub const SYS_mknod = 133;
142	pub const SYS_uselib = 134;
143	pub const SYS_personality = 135;
144	pub const SYS_ustat = 136;
145	pub const SYS_statfs = 137;
146	pub const SYS_fstatfs = 138;
147	pub const SYS_sysfs = 139;
148	pub const SYS_getpriority = 140;
149	pub const SYS_setpriority = 141;
150	pub const SYS_sched_setparam = 142;
151	pub const SYS_sched_getparam = 143;
152	pub const SYS_sched_setscheduler = 144;
153	pub const SYS_sched_getscheduler = 145;
154	pub const SYS_sched_get_priority_max = 146;
155	pub const SYS_sched_get_priority_min = 147;
156	pub const SYS_sched_rr_get_interval = 148;
157	pub const SYS_mlock = 149;
158	pub const SYS_munlock = 150;
159	pub const SYS_mlockall = 151;
160	pub const SYS_munlockall = 152;
161	pub const SYS_vhangup = 153;
162	pub const SYS_modify_ldt = 154;
163	pub const SYS_pivot_root = 155;
164	pub const SYS__sysctl = 156;
165	pub const SYS_prctl = 157;
166	pub const SYS_arch_prctl = 158;
167	pub const SYS_adjtimex = 159;
168	pub const SYS_setrlimit = 160;
169	pub const SYS_chroot = 161;
170	pub const SYS_sync = 162;
171	pub const SYS_acct = 163;
172	pub const SYS_settimeofday = 164;
173	pub const SYS_mount = 165;
174	pub const SYS_umount2 = 166;
175	pub const SYS_swapon = 167;
176	pub const SYS_swapoff = 168;
177	pub const SYS_reboot = 169;
178	pub const SYS_sethostname = 170;
179	pub const SYS_setdomainname = 171;
180	pub const SYS_iopl = 172;
181	pub const SYS_ioperm = 173;
182	pub const SYS_create_module = 174;
183	pub const SYS_init_module = 175;
184	pub const SYS_delete_module = 176;
185	pub const SYS_get_kernel_syms = 177;
186	pub const SYS_query_module = 178;
187	pub const SYS_quotactl = 179;
188	pub const SYS_nfsservctl = 180;
189	pub const SYS_getpmsg = 181;
190	pub const SYS_putpmsg = 182;
191	pub const SYS_afs_syscall = 183;
192	pub const SYS_tuxcall = 184;
193	pub const SYS_security = 185;
194	pub const SYS_gettid = 186;
195	pub const SYS_readahead = 187;
196	pub const SYS_setxattr = 188;
197	pub const SYS_lsetxattr = 189;
198	pub const SYS_fsetxattr = 190;
199	pub const SYS_getxattr = 191;
200	pub const SYS_lgetxattr = 192;
201	pub const SYS_fgetxattr = 193;
202	pub const SYS_listxattr = 194;
203	pub const SYS_llistxattr = 195;
204	pub const SYS_flistxattr = 196;
205	pub const SYS_removexattr = 197;
206	pub const SYS_lremovexattr = 198;
207	pub const SYS_fremovexattr = 199;
208	pub const SYS_tkill = 200;
209	pub const SYS_time = 201;
210	pub const SYS_futex = 202;
211	pub const SYS_sched_setaffinity = 203;
212	pub const SYS_sched_getaffinity = 204;
213	pub const SYS_set_thread_area = 205;
214	pub const SYS_io_setup = 206;
215	pub const SYS_io_destroy = 207;
216	pub const SYS_io_getevents = 208;
217	pub const SYS_io_submit = 209;
218	pub const SYS_io_cancel = 210;
219	pub const SYS_get_thread_area = 211;
220	pub const SYS_lookup_dcookie = 212;
221	pub const SYS_epoll_create = 213;
222	pub const SYS_epoll_ctl_old = 214;
223	pub const SYS_epoll_wait_old = 215;
224	pub const SYS_remap_file_pages = 216;
225	pub const SYS_getdents64 = 217;
226	pub const SYS_set_tid_address = 218;
227	pub const SYS_restart_syscall = 219;
228	pub const SYS_semtimedop = 220;
229	pub const SYS_fadvise64 = 221;
230	pub const SYS_timer_create = 222;
231	pub const SYS_timer_settime = 223;
232	pub const SYS_timer_gettime = 224;
233	pub const SYS_timer_getoverrun = 225;
234	pub const SYS_timer_delete = 226;
235	pub const SYS_clock_settime = 227;
236	pub const SYS_clock_gettime = 228;
237	pub const SYS_clock_getres = 229;
238	pub const SYS_clock_nanosleep = 230;
239	pub const SYS_exit_group = 231;
240	pub const SYS_epoll_wait = 232;
241	pub const SYS_epoll_ctl = 233;
242	pub const SYS_tgkill = 234;
243	pub const SYS_utimes = 235;
244	pub const SYS_vserver = 236;
245	pub const SYS_mbind = 237;
246	pub const SYS_set_mempolicy = 238;
247	pub const SYS_get_mempolicy = 239;
248	pub const SYS_mq_open = 240;
249	pub const SYS_mq_unlink = 241;
250	pub const SYS_mq_timedsend = 242;
251	pub const SYS_mq_timedreceive = 243;
252	pub const SYS_mq_notify = 244;
253	pub const SYS_mq_getsetattr = 245;
254	pub const SYS_kexec_load = 246;
255	pub const SYS_waitid = 247;
256	pub const SYS_add_key = 248;
257	pub const SYS_request_key = 249;
258	pub const SYS_keyctl = 250;
259	pub const SYS_ioprio_set = 251;
260	pub const SYS_ioprio_get = 252;
261	pub const SYS_inotify_init = 253;
262	pub const SYS_inotify_add_watch = 254;
263	pub const SYS_inotify_rm_watch = 255;
264	pub const SYS_migrate_pages = 256;
265	pub const SYS_openat = 257;
266	pub const SYS_mkdirat = 258;
267	pub const SYS_mknodat = 259;
268	pub const SYS_fchownat = 260;
269	pub const SYS_futimesat = 261;
270	pub const SYS_newfstatat = 262;
271	// https://github.com/ziglang/zig/issues/1439
272	pub const SYS_fstatat = 262;
273	pub const SYS_unlinkat = 263;
274	pub const SYS_renameat = 264;
275	pub const SYS_linkat = 265;
276	pub const SYS_symlinkat = 266;
277	pub const SYS_readlinkat = 267;
278	pub const SYS_fchmodat = 268;
279	pub const SYS_faccessat = 269;
280	pub const SYS_pselect6 = 270;
281	pub const SYS_ppoll = 271;
282	pub const SYS_unshare = 272;
283	pub const SYS_set_robust_list = 273;
284	pub const SYS_get_robust_list = 274;
285	pub const SYS_splice = 275;
286	pub const SYS_tee = 276;
287	pub const SYS_sync_file_range = 277;
288	pub const SYS_vmsplice = 278;
289	pub const SYS_move_pages = 279;
290	pub const SYS_utimensat = 280;
291	pub const SYS_epoll_pwait = 281;
292	pub const SYS_signalfd = 282;
293	pub const SYS_timerfd_create = 283;
294	pub const SYS_eventfd = 284;
295	pub const SYS_fallocate = 285;
296	pub const SYS_timerfd_settime = 286;
297	pub const SYS_timerfd_gettime = 287;
298	pub const SYS_accept4 = 288;
299	pub const SYS_signalfd4 = 289;
300	pub const SYS_eventfd2 = 290;
301	pub const SYS_epoll_create1 = 291;
302	pub const SYS_dup3 = 292;
303	pub const SYS_pipe2 = 293;
304	pub const SYS_inotify_init1 = 294;
305	pub const SYS_preadv = 295;
306	pub const SYS_pwritev = 296;
307	pub const SYS_rt_tgsigqueueinfo = 297;
308	pub const SYS_perf_event_open = 298;
309	pub const SYS_recvmmsg = 299;
310	pub const SYS_fanotify_init = 300;
311	pub const SYS_fanotify_mark = 301;
312	pub const SYS_prlimit64 = 302;
313	pub const SYS_name_to_handle_at = 303;
314	pub const SYS_open_by_handle_at = 304;
315	pub const SYS_clock_adjtime = 305;
316	pub const SYS_syncfs = 306;
317	pub const SYS_sendmmsg = 307;
318	pub const SYS_setns = 308;
319	pub const SYS_getcpu = 309;
320	pub const SYS_process_vm_readv = 310;
321	pub const SYS_process_vm_writev = 311;
322	pub const SYS_kcmp = 312;
323	pub const SYS_finit_module = 313;
324	pub const SYS_sched_setattr = 314;
325	pub const SYS_sched_getattr = 315;
326	pub const SYS_renameat2 = 316;
327	pub const SYS_seccomp = 317;
328	pub const SYS_getrandom = 318;
329	pub const SYS_memfd_create = 319;
330	pub const SYS_kexec_file_load = 320;
331	pub const SYS_bpf = 321;
332	pub const SYS_execveat = 322;
333	pub const SYS_userfaultfd = 323;
334	pub const SYS_membarrier = 324;
335	pub const SYS_mlock2 = 325;
336	pub const SYS_copy_file_range = 326;
337	pub const SYS_preadv2 = 327;
338	pub const SYS_pwritev2 = 328;
339	pub const SYS_pkey_mprotect = 329;
340	pub const SYS_pkey_alloc = 330;
341	pub const SYS_pkey_free = 331;
342	pub const SYS_statx = 332;
343	pub const SYS_io_pgetevents = 333;
344	pub const SYS_rseq = 334;
345	pub const SYS_pidfd_send_signal = 424;
346	pub const SYS_io_uring_setup = 425;
347	pub const SYS_io_uring_enter = 426;
348	pub const SYS_io_uring_register = 427;
349
350	pub const O_CREAT = 0o100;
351	pub const O_EXCL = 0o200;
352	pub const O_NOCTTY = 0o400;
353	pub const O_TRUNC = 0o1000;
354	pub const O_APPEND = 0o2000;
355	pub const O_NONBLOCK = 0o4000;
356	pub const O_DSYNC = 0o10000;
357	pub const O_SYNC = 0o4010000;
358	pub const O_RSYNC = 0o4010000;
359	pub const O_DIRECTORY = 0o200000;
360	pub const O_NOFOLLOW = 0o400000;
361	pub const O_CLOEXEC = 0o2000000;
362
363	pub const O_ASYNC = 0o20000;
364	pub const O_DIRECT = 0o40000;
365	pub const O_LARGEFILE = 0;
366	pub const O_NOATIME = 0o1000000;
367	pub const O_PATH = 0o10000000;
368	pub const O_TMPFILE = 0o20200000;
369	pub const O_NDELAY = O_NONBLOCK;
370
371	pub const F_DUPFD = 0;
372	pub const F_GETFD = 1;
373	pub const F_SETFD = 2;
374	pub const F_GETFL = 3;
375	pub const F_SETFL = 4;
376
377	pub const F_SETOWN = 8;
378	pub const F_GETOWN = 9;
379	pub const F_SETSIG = 10;
380	pub const F_GETSIG = 11;
381
382	pub const F_GETLK = 5;
383	pub const F_SETLK = 6;
384	pub const F_SETLKW = 7;
385
386	pub const F_SETOWN_EX = 15;
387	pub const F_GETOWN_EX = 16;
388
389	pub const F_GETOWNER_UIDS = 17;
390
391	pub const AT_FDCWD = -100;
392	pub const AT_SYMLINK_NOFOLLOW = 0x100;
393	pub const AT_REMOVEDIR = 0x200;
394	pub const AT_SYMLINK_FOLLOW = 0x400;
395	pub const AT_NO_AUTOMOUNT = 0x800;
396	pub const AT_EMPTY_PATH = 0x1000;
397
398	pub const VDSO_USEFUL = true;
399	pub const VDSO_CGT_SYM = "__vdso_clock_gettime";
400	pub const VDSO_CGT_VER = "LINUX_2.6";
401	pub const VDSO_GETCPU_SYM = "__vdso_getcpu";
402	pub const VDSO_GETCPU_VER = "LINUX_2.6";
403
404	pub const ARCH_SET_GS = 0x1001;
405	pub const ARCH_SET_FS = 0x1002;
406	pub const ARCH_GET_FS = 0x1003;
407	pub const ARCH_GET_GS = 0x1004;
408		2
409	pub fn syscall0(number: usize) usize {	3	pub fn syscall0(number: usize) usize {
410	return asm volatile ("syscall"	4	return asm volatile ("syscall"
...	@@ -501,65 +95,3 @@ pub nakedcc fn restore_rt() void {	...	@@ -501,65 +95,3 @@ pub nakedcc fn restore_rt() void {
501	: "rcx", "r11"	95	: "rcx", "r11"
502	);	96	);
503	}	97	}
504
505	pub const msghdr = extern struct {
506	msg_name: ?*sockaddr,
507	msg_namelen: socklen_t,
508	msg_iov: [*]iovec,
509	msg_iovlen: i32,
510	__pad1: i32,
511	msg_control: ?*c_void,
512	msg_controllen: socklen_t,
513	__pad2: socklen_t,
514	msg_flags: i32,
515	};
516
517	pub const msghdr_const = extern struct {
518	msg_name: ?*const sockaddr,
519	msg_namelen: socklen_t,
520	msg_iov: [*]iovec_const,
521	msg_iovlen: i32,
522	__pad1: i32,
523	msg_control: ?*c_void,
524	msg_controllen: socklen_t,
525	__pad2: socklen_t,
526	msg_flags: i32,
527	};
528
529	/// Renamed to Stat to not conflict with the stat function.
530	pub const Stat = extern struct {
531	dev: u64,
532	ino: u64,
533	nlink: usize,
534
535	mode: u32,
536	uid: u32,
537	gid: u32,
538	__pad0: u32,
539	rdev: u64,
540	size: i64,
541	blksize: isize,
542	blocks: i64,
543
544	atim: timespec,
545	mtim: timespec,
546	ctim: timespec,
547	__unused: [3]isize,
548	};
549
550	pub const timespec = extern struct {
551	tv_sec: isize,
552	tv_nsec: isize,
553	};
554
555	pub const timeval = extern struct {
556	tv_sec: isize,
557	tv_usec: isize,
558	};
559
560	pub const timezone = extern struct {
561	tz_minuteswest: i32,
562	tz_dsttime: i32,
563	};
564
565	pub const Elf_Symndx = u32;

std/os/netbsd.zig+2-722

...	@@ -1,724 +1,4 @@	...	@@ -1,724 +1,4 @@
1	const builtin = @import("builtin");	1	const builtin = @import("builtin");
2
3	pub use @import("netbsd/errno.zig");
4
5	const std = @import("../std.zig");	2	const std = @import("../std.zig");
6	const c = std.c;	3	pub const is_the_target = builtin.os == .netbsd;
7		4	pub use std.c;
8	const assert = std.debug.assert;
9	const maxInt = std.math.maxInt;
10	pub const Kevent = c.Kevent;
11
12	pub const CTL_KERN = 1;
13	pub const CTL_DEBUG = 5;
14
15	pub const KERN_PROC_ARGS = 48; // struct: process argv/env
16	pub const KERN_PROC_PATHNAME = 5; // path to executable
17
18	pub const PATH_MAX = 1024;
19
20	pub const STDIN_FILENO = 0;
21	pub const STDOUT_FILENO = 1;
22	pub const STDERR_FILENO = 2;
23
24	pub const PROT_NONE = 0;
25	pub const PROT_READ = 1;
26	pub const PROT_WRITE = 2;
27	pub const PROT_EXEC = 4;
28
29	pub const CLOCK_REALTIME = 0;
30	pub const CLOCK_VIRTUAL = 1;
31	pub const CLOCK_PROF = 2;
32	pub const CLOCK_MONOTONIC = 3;
33	pub const CLOCK_THREAD_CPUTIME_ID = 0x20000000;
34	pub const CLOCK_PROCESS_CPUTIME_ID = 0x40000000;
35
36	pub const MAP_FAILED = maxInt(usize);
37	pub const MAP_SHARED = 0x0001;
38	pub const MAP_PRIVATE = 0x0002;
39	pub const MAP_REMAPDUP = 0x0004;
40	pub const MAP_FIXED = 0x0010;
41	pub const MAP_RENAME = 0x0020;
42	pub const MAP_NORESERVE = 0x0040;
43	pub const MAP_INHERIT = 0x0080;
44	pub const MAP_HASSEMAPHORE = 0x0200;
45	pub const MAP_TRYFIXED = 0x0400;
46	pub const MAP_WIRED = 0x0800;
47
48	pub const MAP_FILE = 0x0000;
49	pub const MAP_NOSYNC = 0x0800;
50	pub const MAP_ANON = 0x1000;
51	pub const MAP_ANONYMOUS = MAP_ANON;
52	pub const MAP_STACK = 0x2000;
53
54	pub const WNOHANG = 0x00000001;
55	pub const WUNTRACED = 0x00000002;
56	pub const WSTOPPED = WUNTRACED;
57	pub const WCONTINUED = 0x00000010;
58	pub const WNOWAIT = 0x00010000;
59	pub const WEXITED = 0x00000020;
60	pub const WTRAPPED = 0x00000040;
61
62	pub const SA_ONSTACK = 0x0001;
63	pub const SA_RESTART = 0x0002;
64	pub const SA_RESETHAND = 0x0004;
65	pub const SA_NOCLDSTOP = 0x0008;
66	pub const SA_NODEFER = 0x0010;
67	pub const SA_NOCLDWAIT = 0x0020;
68	pub const SA_SIGINFO = 0x0040;
69
70	pub const SIGHUP = 1;
71	pub const SIGINT = 2;
72	pub const SIGQUIT = 3;
73	pub const SIGILL = 4;
74	pub const SIGTRAP = 5;
75	pub const SIGABRT = 6;
76	pub const SIGIOT = SIGABRT;
77	pub const SIGEMT = 7;
78	pub const SIGFPE = 8;
79	pub const SIGKILL = 9;
80	pub const SIGBUS = 10;
81	pub const SIGSEGV = 11;
82	pub const SIGSYS = 12;
83	pub const SIGPIPE = 13;
84	pub const SIGALRM = 14;
85	pub const SIGTERM = 15;
86	pub const SIGURG = 16;
87	pub const SIGSTOP = 17;
88	pub const SIGTSTP = 18;
89	pub const SIGCONT = 19;
90	pub const SIGCHLD = 20;
91	pub const SIGTTIN = 21;
92	pub const SIGTTOU = 22;
93	pub const SIGIO = 23;
94	pub const SIGXCPU = 24;
95	pub const SIGXFSZ = 25;
96	pub const SIGVTALRM = 26;
97	pub const SIGPROF = 27;
98	pub const SIGWINCH = 28;
99	pub const SIGINFO = 29;
100	pub const SIGUSR1 = 30;
101	pub const SIGUSR2 = 31;
102	pub const SIGPWR = 32;
103
104	pub const SIGRTMIN = 33;
105	pub const SIGRTMAX = 63;
106
107	// access function
108	pub const F_OK = 0; // test for existence of file
109	pub const X_OK = 1; // test for execute or search permission
110	pub const W_OK = 2; // test for write permission
111	pub const R_OK = 4; // test for read permission
112
113	pub const O_RDONLY = 0x0000;
114	pub const O_WRONLY = 0x0001;
115	pub const O_RDWR = 0x0002;
116	pub const O_ACCMODE = 0x0003;
117
118	pub const O_CREAT = 0x0200;
119	pub const O_EXCL = 0x0800;
120	pub const O_NOCTTY = 0x8000;
121	pub const O_TRUNC = 0x0400;
122	pub const O_APPEND = 0x0008;
123	pub const O_NONBLOCK = 0x0004;
124	pub const O_DSYNC = 0x00010000;
125	pub const O_SYNC = 0x0080;
126	pub const O_RSYNC = 0x00020000;
127	pub const O_DIRECTORY = 0x00080000;
128	pub const O_NOFOLLOW = 0x00000100;
129	pub const O_CLOEXEC = 0x00400000;
130
131	pub const O_ASYNC = 0x0040;
132	pub const O_DIRECT = 0x00080000;
133	pub const O_LARGEFILE = 0;
134	pub const O_NOATIME = 0;
135	pub const O_PATH = 0;
136	pub const O_TMPFILE = 0;
137	pub const O_NDELAY = O_NONBLOCK;
138
139	pub const F_DUPFD = 0;
140	pub const F_GETFD = 1;
141	pub const F_SETFD = 2;
142	pub const F_GETFL = 3;
143	pub const F_SETFL = 4;
144
145	pub const F_GETOWN = 5;
146	pub const F_SETOWN = 6;
147
148	pub const F_GETLK = 7;
149	pub const F_SETLK = 8;
150	pub const F_SETLKW = 9;
151
152	pub const SEEK_SET = 0;
153	pub const SEEK_CUR = 1;
154	pub const SEEK_END = 2;
155
156	pub const SIG_BLOCK = 1;
157	pub const SIG_UNBLOCK = 2;
158	pub const SIG_SETMASK = 3;
159
160	pub const SOCK_STREAM = 1;
161	pub const SOCK_DGRAM = 2;
162	pub const SOCK_RAW = 3;
163	pub const SOCK_RDM = 4;
164	pub const SOCK_SEQPACKET = 5;
165
166	pub const SOCK_CLOEXEC = 0x10000000;
167	pub const SOCK_NONBLOCK = 0x20000000;
168
169	pub const PROTO_ip = 0;
170	pub const PROTO_icmp = 1;
171	pub const PROTO_igmp = 2;
172	pub const PROTO_ggp = 3;
173	pub const PROTO_ipencap = 4;
174	pub const PROTO_tcp = 6;
175	pub const PROTO_egp = 8;
176	pub const PROTO_pup = 12;
177	pub const PROTO_udp = 17;
178	pub const PROTO_xns_idp = 22;
179	pub const PROTO_iso_tp4 = 29;
180	pub const PROTO_ipv6 = 41;
181	pub const PROTO_ipv6_route = 43;
182	pub const PROTO_ipv6_frag = 44;
183	pub const PROTO_rsvp = 46;
184	pub const PROTO_gre = 47;
185	pub const PROTO_esp = 50;
186	pub const PROTO_ah = 51;
187	pub const PROTO_ipv6_icmp = 58;
188	pub const PROTO_ipv6_nonxt = 59;
189	pub const PROTO_ipv6_opts = 60;
190	pub const PROTO_encap = 98;
191	pub const PROTO_pim = 103;
192	pub const PROTO_raw = 255;
193
194	pub const PF_UNSPEC = 0;
195	pub const PF_LOCAL = 1;
196	pub const PF_UNIX = PF_LOCAL;
197	pub const PF_FILE = PF_LOCAL;
198	pub const PF_INET = 2;
199	pub const PF_APPLETALK = 16;
200	pub const PF_INET6 = 24;
201	pub const PF_DECnet = 12;
202	pub const PF_KEY = 29;
203	pub const PF_ROUTE = 34;
204	pub const PF_SNA = 11;
205	pub const PF_MPLS = 33;
206	pub const PF_CAN = 35;
207	pub const PF_BLUETOOTH = 31;
208	pub const PF_ISDN = 26;
209	pub const PF_MAX = 37;
210
211	pub const AF_UNSPEC = PF_UNSPEC;
212	pub const AF_LOCAL = PF_LOCAL;
213	pub const AF_UNIX = AF_LOCAL;
214	pub const AF_FILE = AF_LOCAL;
215	pub const AF_INET = PF_INET;
216	pub const AF_APPLETALK = PF_APPLETALK;
217	pub const AF_INET6 = PF_INET6;
218	pub const AF_KEY = PF_KEY;
219	pub const AF_ROUTE = PF_ROUTE;
220	pub const AF_SNA = PF_SNA;
221	pub const AF_MPLS = PF_MPLS;
222	pub const AF_CAN = PF_CAN;
223	pub const AF_BLUETOOTH = PF_BLUETOOTH;
224	pub const AF_ISDN = PF_ISDN;
225	pub const AF_MAX = PF_MAX;
226
227	pub const DT_UNKNOWN = 0;
228	pub const DT_FIFO = 1;
229	pub const DT_CHR = 2;
230	pub const DT_DIR = 4;
231	pub const DT_BLK = 6;
232	pub const DT_REG = 8;
233	pub const DT_LNK = 10;
234	pub const DT_SOCK = 12;
235	pub const DT_WHT = 14;
236
237	/// add event to kq (implies enable)
238	pub const EV_ADD = 0x0001;
239
240	/// delete event from kq
241	pub const EV_DELETE = 0x0002;
242
243	/// enable event
244	pub const EV_ENABLE = 0x0004;
245
246	/// disable event (not reported)
247	pub const EV_DISABLE = 0x0008;
248
249	/// only report one occurrence
250	pub const EV_ONESHOT = 0x0010;
251
252	/// clear event state after reporting
253	pub const EV_CLEAR = 0x0020;
254
255	/// force immediate event output
256	/// ... with or without EV_ERROR
257	/// ... use KEVENT_FLAG_ERROR_EVENTS
258	/// on syscalls supporting flags
259	pub const EV_RECEIPT = 0x0040;
260
261	/// disable event after reporting
262	pub const EV_DISPATCH = 0x0080;
263
264	pub const EVFILT_READ = 0;
265	pub const EVFILT_WRITE = 1;
266
267	/// attached to aio requests
268	pub const EVFILT_AIO = 2;
269
270	/// attached to vnodes
271	pub const EVFILT_VNODE = 3;
272
273	/// attached to struct proc
274	pub const EVFILT_PROC = 4;
275
276	/// attached to struct proc
277	pub const EVFILT_SIGNAL = 5;
278
279	/// timers
280	pub const EVFILT_TIMER = 6;
281
282	/// Filesystem events
283	pub const EVFILT_FS = 7;
284
285	/// On input, NOTE_TRIGGER causes the event to be triggered for output.
286	pub const NOTE_TRIGGER = 0x08000000;
287
288	/// low water mark
289	pub const NOTE_LOWAT = 0x00000001;
290
291	/// vnode was removed
292	pub const NOTE_DELETE = 0x00000001;
293
294	/// data contents changed
295	pub const NOTE_WRITE = 0x00000002;
296
297	/// size increased
298	pub const NOTE_EXTEND = 0x00000004;
299
300	/// attributes changed
301	pub const NOTE_ATTRIB = 0x00000008;
302
303	/// link count changed
304	pub const NOTE_LINK = 0x00000010;
305
306	/// vnode was renamed
307	pub const NOTE_RENAME = 0x00000020;
308
309	/// vnode access was revoked
310	pub const NOTE_REVOKE = 0x00000040;
311
312	/// process exited
313	pub const NOTE_EXIT = 0x80000000;
314
315	/// process forked
316	pub const NOTE_FORK = 0x40000000;
317
318	/// process exec'd
319	pub const NOTE_EXEC = 0x20000000;
320
321	/// mask for signal & exit status
322	pub const NOTE_PDATAMASK = 0x000fffff;
323	pub const NOTE_PCTRLMASK = 0xf0000000;
324
325	pub const TIOCCBRK = 0x2000747a;
326	pub const TIOCCDTR = 0x20007478;
327	pub const TIOCCONS = 0x80047462;
328	pub const TIOCDCDTIMESTAMP = 0x40107458;
329	pub const TIOCDRAIN = 0x2000745e;
330	pub const TIOCEXCL = 0x2000740d;
331	pub const TIOCEXT = 0x80047460;
332	pub const TIOCFLAG_CDTRCTS = 0x10;
333	pub const TIOCFLAG_CLOCAL = 0x2;
334	pub const TIOCFLAG_CRTSCTS = 0x4;
335	pub const TIOCFLAG_MDMBUF = 0x8;
336	pub const TIOCFLAG_SOFTCAR = 0x1;
337	pub const TIOCFLUSH = 0x80047410;
338	pub const TIOCGETA = 0x402c7413;
339	pub const TIOCGETD = 0x4004741a;
340	pub const TIOCGFLAGS = 0x4004745d;
341	pub const TIOCGLINED = 0x40207442;
342	pub const TIOCGPGRP = 0x40047477;
343	pub const TIOCGQSIZE = 0x40047481;
344	pub const TIOCGRANTPT = 0x20007447;
345	pub const TIOCGSID = 0x40047463;
346	pub const TIOCGSIZE = 0x40087468;
347	pub const TIOCGWINSZ = 0x40087468;
348	pub const TIOCMBIC = 0x8004746b;
349	pub const TIOCMBIS = 0x8004746c;
350	pub const TIOCMGET = 0x4004746a;
351	pub const TIOCMSET = 0x8004746d;
352	pub const TIOCM_CAR = 0x40;
353	pub const TIOCM_CD = 0x40;
354	pub const TIOCM_CTS = 0x20;
355	pub const TIOCM_DSR = 0x100;
356	pub const TIOCM_DTR = 0x2;
357	pub const TIOCM_LE = 0x1;
358	pub const TIOCM_RI = 0x80;
359	pub const TIOCM_RNG = 0x80;
360	pub const TIOCM_RTS = 0x4;
361	pub const TIOCM_SR = 0x10;
362	pub const TIOCM_ST = 0x8;
363	pub const TIOCNOTTY = 0x20007471;
364	pub const TIOCNXCL = 0x2000740e;
365	pub const TIOCOUTQ = 0x40047473;
366	pub const TIOCPKT = 0x80047470;
367	pub const TIOCPKT_DATA = 0x0;
368	pub const TIOCPKT_DOSTOP = 0x20;
369	pub const TIOCPKT_FLUSHREAD = 0x1;
370	pub const TIOCPKT_FLUSHWRITE = 0x2;
371	pub const TIOCPKT_IOCTL = 0x40;
372	pub const TIOCPKT_NOSTOP = 0x10;
373	pub const TIOCPKT_START = 0x8;
374	pub const TIOCPKT_STOP = 0x4;
375	pub const TIOCPTMGET = 0x40287446;
376	pub const TIOCPTSNAME = 0x40287448;
377	pub const TIOCRCVFRAME = 0x80087445;
378	pub const TIOCREMOTE = 0x80047469;
379	pub const TIOCSBRK = 0x2000747b;
380	pub const TIOCSCTTY = 0x20007461;
381	pub const TIOCSDTR = 0x20007479;
382	pub const TIOCSETA = 0x802c7414;
383	pub const TIOCSETAF = 0x802c7416;
384	pub const TIOCSETAW = 0x802c7415;
385	pub const TIOCSETD = 0x8004741b;
386	pub const TIOCSFLAGS = 0x8004745c;
387	pub const TIOCSIG = 0x2000745f;
388	pub const TIOCSLINED = 0x80207443;
389	pub const TIOCSPGRP = 0x80047476;
390	pub const TIOCSQSIZE = 0x80047480;
391	pub const TIOCSSIZE = 0x80087467;
392	pub const TIOCSTART = 0x2000746e;
393	pub const TIOCSTAT = 0x80047465;
394	pub const TIOCSTI = 0x80017472;
395	pub const TIOCSTOP = 0x2000746f;
396	pub const TIOCSWINSZ = 0x80087467;
397	pub const TIOCUCNTL = 0x80047466;
398	pub const TIOCXMTFRAME = 0x80087444;
399
400	pub const sockaddr = c.sockaddr;
401	pub const sockaddr_in = c.sockaddr_in;
402	pub const sockaddr_in6 = c.sockaddr_in6;
403
404	fn unsigned(s: i32) u32 {
405	return @bitCast(u32, s);
406	}
407	fn signed(s: u32) i32 {
408	return @bitCast(i32, s);
409	}
410	pub fn WEXITSTATUS(s: i32) i32 {
411	return signed((unsigned(s) >> 8) & 0xff);
412	}
413	pub fn WTERMSIG(s: i32) i32 {
414	return signed(unsigned(s) & 0x7f);
415	}
416	pub fn WSTOPSIG(s: i32) i32 {
417	return WEXITSTATUS(s);
418	}
419	pub fn WIFEXITED(s: i32) bool {
420	return WTERMSIG(s) == 0;
421	}
422
423	pub fn WIFCONTINUED(s: i32) bool {
424	return ((s & 0x7f) == 0xffff);
425	}
426
427	pub fn WIFSTOPPED(s: i32) bool {
428	return ((s & 0x7f != 0x7f) and !WIFCONTINUED(s));
429	}
430
431	pub fn WIFSIGNALED(s: i32) bool {
432	return !WIFSTOPPED(s) and !WIFCONTINUED(s) and !WIFEXITED(s);
433	}
434
435	pub const winsize = extern struct {
436	ws_row: u16,
437	ws_col: u16,
438	ws_xpixel: u16,
439	ws_ypixel: u16,
440	};
441
442	/// Get the errno from a syscall return value, or 0 for no error.
443	pub fn getErrno(r: usize) usize {
444	const signed_r = @bitCast(isize, r);
445	return if (signed_r > -4096 and signed_r < 0) @intCast(usize, -signed_r) else 0;
446	}
447
448	pub fn dup2(old: i32, new: i32) usize {
449	return errnoWrap(c.dup2(old, new));
450	}
451
452	pub fn chdir(path: [*]const u8) usize {
453	return errnoWrap(c.chdir(path));
454	}
455
456	pub fn execve(path: []const u8, argv: []const ?[]const u8, envp: []const ?[*]const u8) usize {
457	return errnoWrap(c.execve(path, argv, envp));
458	}
459
460	pub fn fork() usize {
461	return errnoWrap(c.fork());
462	}
463
464	pub fn access(path: [*]const u8, mode: u32) usize {
465	return errnoWrap(c.access(path, mode));
466	}
467
468	pub fn getcwd(buf: [*]u8, size: usize) usize {
469	return if (c.getcwd(buf, size) == null) @bitCast(usize, -isize(c._errno().*)) else 0;
470	}
471
472	pub fn getdents(fd: i32, dirp: [*]u8, count: usize) usize {
473	return errnoWrap(@bitCast(isize, c.getdents(fd, drip, count)));
474	}
475
476	pub fn getdirentries(fd: i32, buf_ptr: []u8, buf_len: usize, basep: i64) usize {
477	return errnoWrap(@bitCast(isize, c.getdirentries(fd, buf_ptr, buf_len, basep)));
478	}
479
480	pub fn realpath(noalias filename: []const u8, noalias resolved_name: []u8) usize {
481	return if (c.realpath(filename, resolved_name) == null) @bitCast(usize, -isize(c._errno().*)) else 0;
482	}
483
484	pub fn isatty(fd: i32) bool {
485	return c.isatty(fd) != 0;
486	}
487
488	pub fn readlink(noalias path: []const u8, noalias buf_ptr: []u8, buf_len: usize) usize {
489	return errnoWrap(c.readlink(path, buf_ptr, buf_len));
490	}
491
492	pub fn mkdir(path: [*]const u8, mode: u32) usize {
493	return errnoWrap(c.mkdir(path, mode));
494	}
495
496	pub fn mmap(address: ?[*]u8, length: usize, prot: usize, flags: u32, fd: i32, offset: isize) usize {
497	const ptr_result = c.mmap(
498	@ptrCast(?*c_void, address),
499	length,
500	@bitCast(c_int, @intCast(c_uint, prot)),
501	@bitCast(c_int, c_uint(flags)),
502	fd,
503	offset,
504	);
505	const isize_result = @bitCast(isize, @ptrToInt(ptr_result));
506	return errnoWrap(isize_result);
507	}
508
509	pub fn munmap(address: usize, length: usize) usize {
510	return errnoWrap(c.munmap(@intToPtr(*c_void, address), length));
511	}
512
513	pub fn read(fd: i32, buf: [*]u8, nbyte: usize) usize {
514	return errnoWrap(c.read(fd, @ptrCast(*c_void, buf), nbyte));
515	}
516
517	pub fn rmdir(path: [*]const u8) usize {
518	return errnoWrap(c.rmdir(path));
519	}
520
521	pub fn symlink(existing: []const u8, new: []const u8) usize {
522	return errnoWrap(c.symlink(existing, new));
523	}
524
525	pub fn pread(fd: i32, buf: [*]u8, nbyte: usize, offset: u64) usize {
526	return errnoWrap(c.pread(fd, @ptrCast(*c_void, buf), nbyte, offset));
527	}
528
529	pub fn preadv(fd: i32, iov: [*]const iovec, count: usize, offset: usize) usize {
530	return errnoWrap(c.preadv(fd, @ptrCast(*const c_void, iov), @intCast(c_int, count), offset));
531	}
532
533	pub fn pipe(fd: *[2]i32) usize {
534	return pipe2(fd, 0);
535	}
536
537	pub fn pipe2(fd: *[2]i32, flags: u32) usize {
538	comptime assert(i32.bit_count == c_int.bit_count);
539	return errnoWrap(c.pipe2(@ptrCast(*[2]c_int, fd), flags));
540	}
541
542	pub fn write(fd: i32, buf: [*]const u8, nbyte: usize) usize {
543	return errnoWrap(c.write(fd, @ptrCast(*const c_void, buf), nbyte));
544	}
545
546	pub fn pwrite(fd: i32, buf: [*]const u8, nbyte: usize, offset: u64) usize {
547	return errnoWrap(c.pwrite(fd, @ptrCast(*const c_void, buf), nbyte, offset));
548	}
549
550	pub fn pwritev(fd: i32, iov: [*]const iovec_const, count: usize, offset: usize) usize {
551	return errnoWrap(c.pwritev(fd, @ptrCast(*const c_void, iov), @intCast(c_int, count), offset));
552	}
553
554	pub fn rename(old: []const u8, new: []const u8) usize {
555	return errnoWrap(c.rename(old, new));
556	}
557
558	pub fn open(path: [*]const u8, flags: u32, mode: usize) usize {
559	return errnoWrap(c.open(path, @bitCast(c_int, flags), mode));
560	}
561
562	pub fn create(path: [*]const u8, perm: usize) usize {
563	return arch.syscall2(SYS_creat, @ptrToInt(path), perm);
564	}
565
566	pub fn openat(dirfd: i32, path: [*]const u8, flags: usize, mode: usize) usize {
567	return errnoWrap(c.openat(@bitCast(usize, isize(dirfd)), @ptrToInt(path), flags, mode));
568	}
569
570	pub fn close(fd: i32) usize {
571	return errnoWrap(c.close(fd));
572	}
573
574	pub fn lseek(fd: i32, offset: isize, whence: c_int) usize {
575	return errnoWrap(c.lseek(fd, offset, whence));
576	}
577
578	pub fn exit(code: i32) noreturn {
579	c.exit(code);
580	}
581
582	pub fn kill(pid: i32, sig: i32) usize {
583	return errnoWrap(c.kill(pid, sig));
584	}
585
586	pub fn unlink(path: [*]const u8) usize {
587	return errnoWrap(c.unlink(path));
588	}
589
590	pub fn waitpid(pid: i32, status: *i32, options: u32) usize {
591	comptime assert(i32.bit_count == c_int.bit_count);
592	return errnoWrap(c.waitpid(pid, @ptrCast(*c_int, status), @bitCast(c_int, options)));
593	}
594
595	pub fn nanosleep(req: const timespec, rem: ?timespec) usize {
596	return errnoWrap(c.nanosleep(req, rem));
597	}
598
599	pub fn clock_gettime(clk_id: i32, tp: *timespec) usize {
600	return errnoWrap(c.clock_gettime(clk_id, tp));
601	}
602
603	pub fn clock_getres(clk_id: i32, tp: *timespec) usize {
604	return errnoWrap(c.clock_getres(clk_id, tp));
605	}
606
607	pub fn setuid(uid: u32) usize {
608	return errnoWrap(c.setuid(uid));
609	}
610
611	pub fn setgid(gid: u32) usize {
612	return errnoWrap(c.setgid(gid));
613	}
614
615	pub fn setreuid(ruid: u32, euid: u32) usize {
616	return errnoWrap(c.setreuid(ruid, euid));
617	}
618
619	pub fn setregid(rgid: u32, egid: u32) usize {
620	return errnoWrap(c.setregid(rgid, egid));
621	}
622
623	const NSIG = 32;
624
625	pub const SIG_ERR = @intToPtr(extern fn (i32) void, maxInt(usize));
626	pub const SIG_DFL = @intToPtr(extern fn (i32) void, 0);
627	pub const SIG_IGN = @intToPtr(extern fn (i32) void, 1);
628
629	/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
630	pub const Sigaction = extern struct {
631	/// signal handler
632	__sigaction_u: extern union {
633	__sa_handler: extern fn (i32) void,
634	__sa_sigaction: extern fn (i32, *__siginfo, usize) void,
635	},
636
637	/// see signal options
638	sa_flags: u32,
639
640	/// signal mask to apply
641	sa_mask: sigset_t,
642	};
643
644	pub const _SIG_WORDS = 4;
645	pub const _SIG_MAXSIG = 128;
646
647	pub inline fn _SIG_IDX(sig: usize) usize {
648	return sig - 1;
649	}
650	pub inline fn _SIG_WORD(sig: usize) usize {
651	return_SIG_IDX(sig) >> 5;
652	}
653	pub inline fn _SIG_BIT(sig: usize) usize {
654	return 1 << (_SIG_IDX(sig) & 31);
655	}
656	pub inline fn _SIG_VALID(sig: usize) usize {
657	return sig <= _SIG_MAXSIG and sig > 0;
658	}
659
660	pub const sigset_t = extern struct {
661	__bits: [_SIG_WORDS]u32,
662	};
663
664	pub fn raise(sig: i32) usize {
665	return errnoWrap(c.raise(sig));
666	}
667
668	pub const Stat = c.Stat;
669	pub const dirent = c.dirent;
670	pub const timespec = c.timespec;
671
672	pub fn fstat(fd: i32, buf: *c.Stat) usize {
673	return errnoWrap(c.fstat(fd, buf));
674	}
675	pub const iovec = extern struct {
676	iov_base: [*]u8,
677	iov_len: usize,
678	};
679
680	pub const iovec_const = extern struct {
681	iov_base: [*]const u8,
682	iov_len: usize,
683	};
684
685	// TODO avoid libc dependency
686	pub fn kqueue() usize {
687	return errnoWrap(c.kqueue());
688	}
689
690	// TODO avoid libc dependency
691	pub fn kevent(kq: i32, changelist: []const Kevent, eventlist: []Kevent, timeout: ?*const timespec) usize {
692	return errnoWrap(c.kevent(
693	kq,
694	changelist.ptr,
695	@intCast(c_int, changelist.len),
696	eventlist.ptr,
697	@intCast(c_int, eventlist.len),
698	timeout,
699	));
700	}
701
702	// TODO avoid libc dependency
703	pub fn sysctl(name: []c_int, namelen: c_uint, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) usize {
704	return errnoWrap(c.sysctl(name, namelen, oldp, oldlenp, newp, newlen));
705	}
706
707	// TODO avoid libc dependency
708	pub fn sysctlbyname(name: []const u8, oldp: ?c_void, oldlenp: ?usize, newp: ?c_void, newlen: usize) usize {
709	return errnoWrap(c.sysctlbyname(name, oldp, oldlenp, newp, newlen));
710	}
711
712	// TODO avoid libc dependency
713	pub fn sysctlnametomib(name: []const u8, mibp: ?c_int, sizep: ?*usize) usize {
714	return errnoWrap(c.sysctlnametomib(name, wibp, sizep));
715	}
716
717	// TODO avoid libc dependency
718
719	/// Takes the return value from a syscall and formats it back in the way
720	/// that the kernel represents it to libc. Errno was a mistake, let's make
721	/// it go away forever.
722	fn errnoWrap(value: isize) usize {
723	return @bitCast(usize, if (value == -1) -isize(c._errno().*) else value);
724	}

std/os/netbsd/errno.zig deleted-134

...	@@ -1,134 +0,0 @@
1	pub const EPERM = 1; // Operation not permitted
2	pub const ENOENT = 2; // No such file or directory
3	pub const ESRCH = 3; // No such process
4	pub const EINTR = 4; // Interrupted system call
5	pub const EIO = 5; // Input/output error
6	pub const ENXIO = 6; // Device not configured
7	pub const E2BIG = 7; // Argument list too long
8	pub const ENOEXEC = 8; // Exec format error
9	pub const EBADF = 9; // Bad file descriptor
10	pub const ECHILD = 10; // No child processes
11	pub const EDEADLK = 11; // Resource deadlock avoided
12	// 11 was EAGAIN
13	pub const ENOMEM = 12; // Cannot allocate memory
14	pub const EACCES = 13; // Permission denied
15	pub const EFAULT = 14; // Bad address
16	pub const ENOTBLK = 15; // Block device required
17	pub const EBUSY = 16; // Device busy
18	pub const EEXIST = 17; // File exists
19	pub const EXDEV = 18; // Cross-device link
20	pub const ENODEV = 19; // Operation not supported by device
21	pub const ENOTDIR = 20; // Not a directory
22	pub const EISDIR = 21; // Is a directory
23	pub const EINVAL = 22; // Invalid argument
24	pub const ENFILE = 23; // Too many open files in system
25	pub const EMFILE = 24; // Too many open files
26	pub const ENOTTY = 25; // Inappropriate ioctl for device
27	pub const ETXTBSY = 26; // Text file busy
28	pub const EFBIG = 27; // File too large
29	pub const ENOSPC = 28; // No space left on device
30	pub const ESPIPE = 29; // Illegal seek
31	pub const EROFS = 30; // Read-only file system
32	pub const EMLINK = 31; // Too many links
33	pub const EPIPE = 32; // Broken pipe
34
35	// math software
36	pub const EDOM = 33; // Numerical argument out of domain
37	pub const ERANGE = 34; // Result too large or too small
38
39	// non-blocking and interrupt i/o
40	pub const EAGAIN = 35; // Resource temporarily unavailable
41	pub const EWOULDBLOCK = EAGAIN; // Operation would block
42	pub const EINPROGRESS = 36; // Operation now in progress
43	pub const EALREADY = 37; // Operation already in progress
44
45	// ipc/network software -- argument errors
46	pub const ENOTSOCK = 38; // Socket operation on non-socket
47	pub const EDESTADDRREQ = 39; // Destination address required
48	pub const EMSGSIZE = 40; // Message too long
49	pub const EPROTOTYPE = 41; // Protocol wrong type for socket
50	pub const ENOPROTOOPT = 42; // Protocol option not available
51	pub const EPROTONOSUPPORT = 43; // Protocol not supported
52	pub const ESOCKTNOSUPPORT = 44; // Socket type not supported
53	pub const EOPNOTSUPP = 45; // Operation not supported
54	pub const EPFNOSUPPORT = 46; // Protocol family not supported
55	pub const EAFNOSUPPORT = 47; // Address family not supported by protocol family
56	pub const EADDRINUSE = 48; // Address already in use
57	pub const EADDRNOTAVAIL = 49; // Can't assign requested address
58
59	// ipc/network software -- operational errors
60	pub const ENETDOWN = 50; // Network is down
61	pub const ENETUNREACH = 51; // Network is unreachable
62	pub const ENETRESET = 52; // Network dropped connection on reset
63	pub const ECONNABORTED = 53; // Software caused connection abort
64	pub const ECONNRESET = 54; // Connection reset by peer
65	pub const ENOBUFS = 55; // No buffer space available
66	pub const EISCONN = 56; // Socket is already connected
67	pub const ENOTCONN = 57; // Socket is not connected
68	pub const ESHUTDOWN = 58; // Can't send after socket shutdown
69	pub const ETOOMANYREFS = 59; // Too many references: can't splice
70	pub const ETIMEDOUT = 60; // Operation timed out
71	pub const ECONNREFUSED = 61; // Connection refused
72
73	pub const ELOOP = 62; // Too many levels of symbolic links
74	pub const ENAMETOOLONG = 63; // File name too long
75
76	// should be rearranged
77	pub const EHOSTDOWN = 64; // Host is down
78	pub const EHOSTUNREACH = 65; // No route to host
79	pub const ENOTEMPTY = 66; // Directory not empty
80
81	// quotas & mush
82	pub const EPROCLIM = 67; // Too many processes
83	pub const EUSERS = 68; // Too many users
84	pub const EDQUOT = 69; // Disc quota exceeded
85
86	// Network File System
87	pub const ESTALE = 70; // Stale NFS file handle
88	pub const EREMOTE = 71; // Too many levels of remote in path
89	pub const EBADRPC = 72; // RPC struct is bad
90	pub const ERPCMISMATCH = 73; // RPC version wrong
91	pub const EPROGUNAVAIL = 74; // RPC prog. not avail
92	pub const EPROGMISMATCH = 75; // Program version wrong
93	pub const EPROCUNAVAIL = 76; // Bad procedure for program
94
95	pub const ENOLCK = 77; // No locks available
96	pub const ENOSYS = 78; // Function not implemented
97
98	pub const EFTYPE = 79; // Inappropriate file type or format
99	pub const EAUTH = 80; // Authentication error
100	pub const ENEEDAUTH = 81; // Need authenticator
101
102	// SystemV IPC
103	pub const EIDRM = 82; // Identifier removed
104	pub const ENOMSG = 83; // No message of desired type
105	pub const EOVERFLOW = 84; // Value too large to be stored in data type
106
107	// Wide/multibyte-character handling, ISO/IEC 9899/AMD1:1995
108	pub const EILSEQ = 85; // Illegal byte sequence
109
110	// From IEEE Std 1003.1-2001
111	// Base, Realtime, Threads or Thread Priority Scheduling option errors
112	pub const ENOTSUP = 86; // Not supported
113
114	// Realtime option errors
115	pub const ECANCELED = 87; // Operation canceled
116
117	// Realtime, XSI STREAMS option errors
118	pub const EBADMSG = 88; // Bad or Corrupt message
119
120	// XSI STREAMS option errors
121	pub const ENODATA = 89; // No message available
122	pub const ENOSR = 90; // No STREAM resources
123	pub const ENOSTR = 91; // Not a STREAM
124	pub const ETIME = 92; // STREAM ioctl timeout
125
126	// File system extended attribute errors
127	pub const ENOATTR = 93; // Attribute not found
128
129	// Realtime, XSI STREAMS option errors
130	pub const EMULTIHOP = 94; // Multihop attempted
131	pub const ENOLINK = 95; // Link has been severed
132	pub const EPROTO = 96; // Protocol error
133
134	pub const ELAST = 96; // Must equal largest errno

std/os/path.zig deleted-1288

...	@@ -1,1288 +0,0 @@
1	const std = @import("../std.zig");
2	const builtin = @import("builtin");
3	const Os = builtin.Os;
4	const debug = std.debug;
5	const assert = debug.assert;
6	const testing = std.testing;
7	const mem = std.mem;
8	const fmt = std.fmt;
9	const Allocator = mem.Allocator;
10	const os = std.os;
11	const math = std.math;
12	const posix = os.posix;
13	const windows = os.windows;
14	const cstr = std.cstr;
15	const windows_util = @import("windows/util.zig");
16
17	pub const sep_windows = '\\';
18	pub const sep_posix = '/';
19	pub const sep = if (is_windows) sep_windows else sep_posix;
20
21	pub const sep_str = [1]u8{sep};
22
23	pub const delimiter_windows = ';';
24	pub const delimiter_posix = ':';
25	pub const delimiter = if (is_windows) delimiter_windows else delimiter_posix;
26
27	const is_windows = builtin.os == builtin.Os.windows;
28
29	pub fn isSep(byte: u8) bool {
30	if (is_windows) {
31	return byte == '/' or byte == '\\';
32	} else {
33	return byte == '/';
34	}
35	}
36
37	/// This is different from mem.join in that the separator will not be repeated if
38	/// it is found at the end or beginning of a pair of consecutive paths.
39	fn joinSep(allocator: *Allocator, separator: u8, paths: []const []const u8) ![]u8 {
40	if (paths.len == 0) return (([*]u8)(undefined))[0..0];
41
42	const total_len = blk: {
43	var sum: usize = paths[0].len;
44	var i: usize = 1;
45	while (i < paths.len) : (i += 1) {
46	const prev_path = paths[i - 1];
47	const this_path = paths[i];
48	const prev_sep = (prev_path.len != 0 and prev_path[prev_path.len - 1] == separator);
49	const this_sep = (this_path.len != 0 and this_path[0] == separator);
50	sum += @boolToInt(!prev_sep and !this_sep);
51	sum += if (prev_sep and this_sep) this_path.len - 1 else this_path.len;
52	}
53	break :blk sum;
54	};
55
56	const buf = try allocator.alloc(u8, total_len);
57	errdefer allocator.free(buf);
58
59	mem.copy(u8, buf, paths[0]);
60	var buf_index: usize = paths[0].len;
61	var i: usize = 1;
62	while (i < paths.len) : (i += 1) {
63	const prev_path = paths[i - 1];
64	const this_path = paths[i];
65	const prev_sep = (prev_path.len != 0 and prev_path[prev_path.len - 1] == separator);
66	const this_sep = (this_path.len != 0 and this_path[0] == separator);
67	if (!prev_sep and !this_sep) {
68	buf[buf_index] = separator;
69	buf_index += 1;
70	}
71	const adjusted_path = if (prev_sep and this_sep) this_path[1..] else this_path;
72	mem.copy(u8, buf[buf_index..], adjusted_path);
73	buf_index += adjusted_path.len;
74	}
75
76	// No need for shrink since buf is exactly the correct size.
77	return buf;
78	}
79
80	pub const join = if (is_windows) joinWindows else joinPosix;
81
82	/// Naively combines a series of paths with the native path seperator.
83	/// Allocates memory for the result, which must be freed by the caller.
84	pub fn joinWindows(allocator: *Allocator, paths: []const []const u8) ![]u8 {
85	return joinSep(allocator, sep_windows, paths);
86	}
87
88	/// Naively combines a series of paths with the native path seperator.
89	/// Allocates memory for the result, which must be freed by the caller.
90	pub fn joinPosix(allocator: *Allocator, paths: []const []const u8) ![]u8 {
91	return joinSep(allocator, sep_posix, paths);
92	}
93
94	fn testJoinWindows(paths: []const []const u8, expected: []const u8) void {
95	var buf: [1024]u8 = undefined;
96	const a = &std.heap.FixedBufferAllocator.init(&buf).allocator;
97	const actual = joinWindows(a, paths) catch @panic("fail");
98	testing.expectEqualSlices(u8, expected, actual);
99	}
100
101	fn testJoinPosix(paths: []const []const u8, expected: []const u8) void {
102	var buf: [1024]u8 = undefined;
103	const a = &std.heap.FixedBufferAllocator.init(&buf).allocator;
104	const actual = joinPosix(a, paths) catch @panic("fail");
105	testing.expectEqualSlices(u8, expected, actual);
106	}
107
108	test "os.path.join" {
109	testJoinWindows([][]const u8{ "c:\\a\\b", "c" }, "c:\\a\\b\\c");
110	testJoinWindows([][]const u8{ "c:\\a\\b", "c" }, "c:\\a\\b\\c");
111	testJoinWindows([][]const u8{ "c:\\a\\b\\", "c" }, "c:\\a\\b\\c");
112
113	testJoinWindows([][]const u8{ "c:\\", "a", "b\\", "c" }, "c:\\a\\b\\c");
114	testJoinWindows([][]const u8{ "c:\\a\\", "b\\", "c" }, "c:\\a\\b\\c");
115
116	testJoinWindows(
117	[][]const u8{ "c:\\home\\andy\\dev\\zig\\build\\lib\\zig\\std", "io.zig" },
118	"c:\\home\\andy\\dev\\zig\\build\\lib\\zig\\std\\io.zig",
119	);
120
121	testJoinPosix([][]const u8{ "/a/b", "c" }, "/a/b/c");
122	testJoinPosix([][]const u8{ "/a/b/", "c" }, "/a/b/c");
123
124	testJoinPosix([][]const u8{ "/", "a", "b/", "c" }, "/a/b/c");
125	testJoinPosix([][]const u8{ "/a/", "b/", "c" }, "/a/b/c");
126
127	testJoinPosix(
128	[][]const u8{ "/home/andy/dev/zig/build/lib/zig/std", "io.zig" },
129	"/home/andy/dev/zig/build/lib/zig/std/io.zig",
130	);
131
132	testJoinPosix([][]const u8{ "a", "/c" }, "a/c");
133	testJoinPosix([][]const u8{ "a/", "/c" }, "a/c");
134	}
135
136	pub fn isAbsolute(path: []const u8) bool {
137	if (is_windows) {
138	return isAbsoluteWindows(path);
139	} else {
140	return isAbsolutePosix(path);
141	}
142	}
143
144	pub fn isAbsoluteWindows(path: []const u8) bool {
145	if (path[0] == '/')
146	return true;
147
148	if (path[0] == '\\') {
149	return true;
150	}
151	if (path.len < 3) {
152	return false;
153	}
154	if (path[1] == ':') {
155	if (path[2] == '/')
156	return true;
157	if (path[2] == '\\')
158	return true;
159	}
160	return false;
161	}
162
163	pub fn isAbsolutePosix(path: []const u8) bool {
164	return path[0] == sep_posix;
165	}
166
167	test "os.path.isAbsoluteWindows" {
168	testIsAbsoluteWindows("/", true);
169	testIsAbsoluteWindows("//", true);
170	testIsAbsoluteWindows("//server", true);
171	testIsAbsoluteWindows("//server/file", true);
172	testIsAbsoluteWindows("\\\\server\\file", true);
173	testIsAbsoluteWindows("\\\\server", true);
174	testIsAbsoluteWindows("\\\\", true);
175	testIsAbsoluteWindows("c", false);
176	testIsAbsoluteWindows("c:", false);
177	testIsAbsoluteWindows("c:\\", true);
178	testIsAbsoluteWindows("c:/", true);
179	testIsAbsoluteWindows("c://", true);
180	testIsAbsoluteWindows("C:/Users/", true);
181	testIsAbsoluteWindows("C:\\Users\\", true);
182	testIsAbsoluteWindows("C:cwd/another", false);
183	testIsAbsoluteWindows("C:cwd\\another", false);
184	testIsAbsoluteWindows("directory/directory", false);
185	testIsAbsoluteWindows("directory\\directory", false);
186	testIsAbsoluteWindows("/usr/local", true);
187	}
188
189	test "os.path.isAbsolutePosix" {
190	testIsAbsolutePosix("/home/foo", true);
191	testIsAbsolutePosix("/home/foo/..", true);
192	testIsAbsolutePosix("bar/", false);
193	testIsAbsolutePosix("./baz", false);
194	}
195
196	fn testIsAbsoluteWindows(path: []const u8, expected_result: bool) void {
197	testing.expectEqual(expected_result, isAbsoluteWindows(path));
198	}
199
200	fn testIsAbsolutePosix(path: []const u8, expected_result: bool) void {
201	testing.expectEqual(expected_result, isAbsolutePosix(path));
202	}
203
204	pub const WindowsPath = struct {
205	is_abs: bool,
206	kind: Kind,
207	disk_designator: []const u8,
208
209	pub const Kind = enum {
210	None,
211	Drive,
212	NetworkShare,
213	};
214	};
215
216	pub fn windowsParsePath(path: []const u8) WindowsPath {
217	if (path.len >= 2 and path[1] == ':') {
218	return WindowsPath{
219	.is_abs = isAbsoluteWindows(path),
220	.kind = WindowsPath.Kind.Drive,
221	.disk_designator = path[0..2],
222	};
223	}
224	if (path.len >= 1 and (path[0] == '/' or path[0] == '\\') and
225	(path.len == 1 or (path[1] != '/' and path[1] != '\\')))
226	{
227	return WindowsPath{
228	.is_abs = true,
229	.kind = WindowsPath.Kind.None,
230	.disk_designator = path[0..0],
231	};
232	}
233	const relative_path = WindowsPath{
234	.kind = WindowsPath.Kind.None,
235	.disk_designator = []u8{},
236	.is_abs = false,
237	};
238	if (path.len < "//a/b".len) {
239	return relative_path;
240	}
241
242	// TODO when I combined these together with `inline for` the compiler crashed
243	{
244	const this_sep = '/';
245	const two_sep = []u8{ this_sep, this_sep };
246	if (mem.startsWith(u8, path, two_sep)) {
247	if (path[2] == this_sep) {
248	return relative_path;
249	}
250
251	var it = mem.tokenize(path, []u8{this_sep});
252	_ = (it.next() orelse return relative_path);
253	_ = (it.next() orelse return relative_path);
254	return WindowsPath{
255	.is_abs = isAbsoluteWindows(path),
256	.kind = WindowsPath.Kind.NetworkShare,
257	.disk_designator = path[0..it.index],
258	};
259	}
260	}
261	{
262	const this_sep = '\\';
263	const two_sep = []u8{ this_sep, this_sep };
264	if (mem.startsWith(u8, path, two_sep)) {
265	if (path[2] == this_sep) {
266	return relative_path;
267	}
268
269	var it = mem.tokenize(path, []u8{this_sep});
270	_ = (it.next() orelse return relative_path);
271	_ = (it.next() orelse return relative_path);
272	return WindowsPath{
273	.is_abs = isAbsoluteWindows(path),
274	.kind = WindowsPath.Kind.NetworkShare,
275	.disk_designator = path[0..it.index],
276	};
277	}
278	}
279	return relative_path;
280	}
281
282	test "os.path.windowsParsePath" {
283	{
284	const parsed = windowsParsePath("//a/b");
285	testing.expect(parsed.is_abs);
286	testing.expect(parsed.kind == WindowsPath.Kind.NetworkShare);
287	testing.expect(mem.eql(u8, parsed.disk_designator, "//a/b"));
288	}
289	{
290	const parsed = windowsParsePath("\\\\a\\b");
291	testing.expect(parsed.is_abs);
292	testing.expect(parsed.kind == WindowsPath.Kind.NetworkShare);
293	testing.expect(mem.eql(u8, parsed.disk_designator, "\\\\a\\b"));
294	}
295	{
296	const parsed = windowsParsePath("\\\\a\\");
297	testing.expect(!parsed.is_abs);
298	testing.expect(parsed.kind == WindowsPath.Kind.None);
299	testing.expect(mem.eql(u8, parsed.disk_designator, ""));
300	}
301	{
302	const parsed = windowsParsePath("/usr/local");
303	testing.expect(parsed.is_abs);
304	testing.expect(parsed.kind == WindowsPath.Kind.None);
305	testing.expect(mem.eql(u8, parsed.disk_designator, ""));
306	}
307	{
308	const parsed = windowsParsePath("c:../");
309	testing.expect(!parsed.is_abs);
310	testing.expect(parsed.kind == WindowsPath.Kind.Drive);
311	testing.expect(mem.eql(u8, parsed.disk_designator, "c:"));
312	}
313	}
314
315	pub fn diskDesignator(path: []const u8) []const u8 {
316	if (is_windows) {
317	return diskDesignatorWindows(path);
318	} else {
319	return "";
320	}
321	}
322
323	pub fn diskDesignatorWindows(path: []const u8) []const u8 {
324	return windowsParsePath(path).disk_designator;
325	}
326
327	fn networkShareServersEql(ns1: []const u8, ns2: []const u8) bool {
328	const sep1 = ns1[0];
329	const sep2 = ns2[0];
330
331	var it1 = mem.tokenize(ns1, []u8{sep1});
332	var it2 = mem.tokenize(ns2, []u8{sep2});
333
334	// TODO ASCII is wrong, we actually need full unicode support to compare paths.
335	return asciiEqlIgnoreCase(it1.next().?, it2.next().?);
336	}
337
338	fn compareDiskDesignators(kind: WindowsPath.Kind, p1: []const u8, p2: []const u8) bool {
339	switch (kind) {
340	WindowsPath.Kind.None => {
341	assert(p1.len == 0);
342	assert(p2.len == 0);
343	return true;
344	},
345	WindowsPath.Kind.Drive => {
346	return asciiUpper(p1[0]) == asciiUpper(p2[0]);
347	},
348	WindowsPath.Kind.NetworkShare => {
349	const sep1 = p1[0];
350	const sep2 = p2[0];
351
352	var it1 = mem.tokenize(p1, []u8{sep1});
353	var it2 = mem.tokenize(p2, []u8{sep2});
354
355	// TODO ASCII is wrong, we actually need full unicode support to compare paths.
356	return asciiEqlIgnoreCase(it1.next().?, it2.next().?) and asciiEqlIgnoreCase(it1.next().?, it2.next().?);
357	},
358	}
359	}
360
361	fn asciiUpper(byte: u8) u8 {
362	return switch (byte) {
363	'a'...'z' => 'A' + (byte - 'a'),
364	else => byte,
365	};
366	}
367
368	fn asciiEqlIgnoreCase(s1: []const u8, s2: []const u8) bool {
369	if (s1.len != s2.len)
370	return false;
371	var i: usize = 0;
372	while (i < s1.len) : (i += 1) {
373	if (asciiUpper(s1[i]) != asciiUpper(s2[i]))
374	return false;
375	}
376	return true;
377	}
378
379	/// On Windows, this calls `resolveWindows` and on POSIX it calls `resolvePosix`.
380	pub fn resolve(allocator: *Allocator, paths: []const []const u8) ![]u8 {
381	if (is_windows) {
382	return resolveWindows(allocator, paths);
383	} else {
384	return resolvePosix(allocator, paths);
385	}
386	}
387
388	/// This function is like a series of `cd` statements executed one after another.
389	/// It resolves "." and "..".
390	/// The result does not have a trailing path separator.
391	/// If all paths are relative it uses the current working directory as a starting point.
392	/// Each drive has its own current working directory.
393	/// Path separators are canonicalized to '\\' and drives are canonicalized to capital letters.
394	/// Note: all usage of this function should be audited due to the existence of symlinks.
395	/// Without performing actual syscalls, resolving `..` could be incorrect.
396	pub fn resolveWindows(allocator: *Allocator, paths: []const []const u8) ![]u8 {
397	if (paths.len == 0) {
398	assert(is_windows); // resolveWindows called on non windows can't use getCwd
399	return os.getCwdAlloc(allocator);
400	}
401
402	// determine which disk designator we will result with, if any
403	var result_drive_buf = "_:";
404	var result_disk_designator: []const u8 = "";
405	var have_drive_kind = WindowsPath.Kind.None;
406	var have_abs_path = false;
407	var first_index: usize = 0;
408	var max_size: usize = 0;
409	for (paths) \|p, i\| {
410	const parsed = windowsParsePath(p);
411	if (parsed.is_abs) {
412	have_abs_path = true;
413	first_index = i;
414	max_size = result_disk_designator.len;
415	}
416	switch (parsed.kind) {
417	WindowsPath.Kind.Drive => {
418	result_drive_buf[0] = asciiUpper(parsed.disk_designator[0]);
419	result_disk_designator = result_drive_buf[0..];
420	have_drive_kind = WindowsPath.Kind.Drive;
421	},
422	WindowsPath.Kind.NetworkShare => {
423	result_disk_designator = parsed.disk_designator;
424	have_drive_kind = WindowsPath.Kind.NetworkShare;
425	},
426	WindowsPath.Kind.None => {},
427	}
428	max_size += p.len + 1;
429	}
430
431	// if we will result with a disk designator, loop again to determine
432	// which is the last time the disk designator is absolutely specified, if any
433	// and count up the max bytes for paths related to this disk designator
434	if (have_drive_kind != WindowsPath.Kind.None) {
435	have_abs_path = false;
436	first_index = 0;
437	max_size = result_disk_designator.len;
438	var correct_disk_designator = false;
439
440	for (paths) \|p, i\| {
441	const parsed = windowsParsePath(p);
442	if (parsed.kind != WindowsPath.Kind.None) {
443	if (parsed.kind == have_drive_kind) {
444	correct_disk_designator = compareDiskDesignators(have_drive_kind, result_disk_designator, parsed.disk_designator);
445	} else {
446	continue;
447	}
448	}
449	if (!correct_disk_designator) {
450	continue;
451	}
452	if (parsed.is_abs) {
453	first_index = i;
454	max_size = result_disk_designator.len;
455	have_abs_path = true;
456	}
457	max_size += p.len + 1;
458	}
459	}
460
461	// Allocate result and fill in the disk designator, calling getCwd if we have to.
462	var result: []u8 = undefined;
463	var result_index: usize = 0;
464
465	if (have_abs_path) {
466	switch (have_drive_kind) {
467	WindowsPath.Kind.Drive => {
468	result = try allocator.alloc(u8, max_size);
469
470	mem.copy(u8, result, result_disk_designator);
471	result_index += result_disk_designator.len;
472	},
473	WindowsPath.Kind.NetworkShare => {
474	result = try allocator.alloc(u8, max_size);
475	var it = mem.tokenize(paths[first_index], "/\\");
476	const server_name = it.next().?;
477	const other_name = it.next().?;
478
479	result[result_index] = '\\';
480	result_index += 1;
481	result[result_index] = '\\';
482	result_index += 1;
483	mem.copy(u8, result[result_index..], server_name);
484	result_index += server_name.len;
485	result[result_index] = '\\';
486	result_index += 1;
487	mem.copy(u8, result[result_index..], other_name);
488	result_index += other_name.len;
489
490	result_disk_designator = result[0..result_index];
491	},
492	WindowsPath.Kind.None => {
493	assert(is_windows); // resolveWindows called on non windows can't use getCwd
494	const cwd = try os.getCwdAlloc(allocator);
495	defer allocator.free(cwd);
496	const parsed_cwd = windowsParsePath(cwd);
497	result = try allocator.alloc(u8, max_size + parsed_cwd.disk_designator.len + 1);
498	mem.copy(u8, result, parsed_cwd.disk_designator);
499	result_index += parsed_cwd.disk_designator.len;
500	result_disk_designator = result[0..parsed_cwd.disk_designator.len];
501	if (parsed_cwd.kind == WindowsPath.Kind.Drive) {
502	result[0] = asciiUpper(result[0]);
503	}
504	have_drive_kind = parsed_cwd.kind;
505	},
506	}
507	} else {
508	assert(is_windows); // resolveWindows called on non windows can't use getCwd
509	// TODO call get cwd for the result_disk_designator instead of the global one
510	const cwd = try os.getCwdAlloc(allocator);
511	defer allocator.free(cwd);
512
513	result = try allocator.alloc(u8, max_size + cwd.len + 1);
514
515	mem.copy(u8, result, cwd);
516	result_index += cwd.len;
517	const parsed_cwd = windowsParsePath(result[0..result_index]);
518	result_disk_designator = parsed_cwd.disk_designator;
519	if (parsed_cwd.kind == WindowsPath.Kind.Drive) {
520	result[0] = asciiUpper(result[0]);
521	}
522	have_drive_kind = parsed_cwd.kind;
523	}
524	errdefer allocator.free(result);
525
526	// Now we know the disk designator to use, if any, and what kind it is. And our result
527	// is big enough to append all the paths to.
528	var correct_disk_designator = true;
529	for (paths[first_index..]) \|p, i\| {
530	const parsed = windowsParsePath(p);
531
532	if (parsed.kind != WindowsPath.Kind.None) {
533	if (parsed.kind == have_drive_kind) {
534	correct_disk_designator = compareDiskDesignators(have_drive_kind, result_disk_designator, parsed.disk_designator);
535	} else {
536	continue;
537	}
538	}
539	if (!correct_disk_designator) {
540	continue;
541	}
542	var it = mem.tokenize(p[parsed.disk_designator.len..], "/\\");
543	while (it.next()) \|component\| {
544	if (mem.eql(u8, component, ".")) {
545	continue;
546	} else if (mem.eql(u8, component, "..")) {
547	while (true) {
548	if (result_index == 0 or result_index == result_disk_designator.len)
549	break;
550	result_index -= 1;
551	if (result[result_index] == '\\' or result[result_index] == '/')
552	break;
553	}
554	} else {
555	result[result_index] = sep_windows;
556	result_index += 1;
557	mem.copy(u8, result[result_index..], component);
558	result_index += component.len;
559	}
560	}
561	}
562
563	if (result_index == result_disk_designator.len) {
564	result[result_index] = '\\';
565	result_index += 1;
566	}
567
568	return allocator.shrink(result, result_index);
569	}
570
571	/// This function is like a series of `cd` statements executed one after another.
572	/// It resolves "." and "..".
573	/// The result does not have a trailing path separator.
574	/// If all paths are relative it uses the current working directory as a starting point.
575	/// Note: all usage of this function should be audited due to the existence of symlinks.
576	/// Without performing actual syscalls, resolving `..` could be incorrect.
577	pub fn resolvePosix(allocator: *Allocator, paths: []const []const u8) ![]u8 {
578	if (paths.len == 0) {
579	assert(!is_windows); // resolvePosix called on windows can't use getCwd
580	return os.getCwdAlloc(allocator);
581	}
582
583	var first_index: usize = 0;
584	var have_abs = false;
585	var max_size: usize = 0;
586	for (paths) \|p, i\| {
587	if (isAbsolutePosix(p)) {
588	first_index = i;
589	have_abs = true;
590	max_size = 0;
591	}
592	max_size += p.len + 1;
593	}
594
595	var result: []u8 = undefined;
596	var result_index: usize = 0;
597
598	if (have_abs) {
599	result = try allocator.alloc(u8, max_size);
600	} else {
601	assert(!is_windows); // resolvePosix called on windows can't use getCwd
602	const cwd = try os.getCwdAlloc(allocator);
603	defer allocator.free(cwd);
604	result = try allocator.alloc(u8, max_size + cwd.len + 1);
605	mem.copy(u8, result, cwd);
606	result_index += cwd.len;
607	}
608	errdefer allocator.free(result);
609
610	for (paths[first_index..]) \|p, i\| {
611	var it = mem.tokenize(p, "/");
612	while (it.next()) \|component\| {
613	if (mem.eql(u8, component, ".")) {
614	continue;
615	} else if (mem.eql(u8, component, "..")) {
616	while (true) {
617	if (result_index == 0)
618	break;
619	result_index -= 1;
620	if (result[result_index] == '/')
621	break;
622	}
623	} else {
624	result[result_index] = '/';
625	result_index += 1;
626	mem.copy(u8, result[result_index..], component);
627	result_index += component.len;
628	}
629	}
630	}
631
632	if (result_index == 0) {
633	result[0] = '/';
634	result_index += 1;
635	}
636
637	return allocator.shrink(result, result_index);
638	}
639
640	test "os.path.resolve" {
641	const cwd = try os.getCwdAlloc(debug.global_allocator);
642	if (is_windows) {
643	if (windowsParsePath(cwd).kind == WindowsPath.Kind.Drive) {
644	cwd[0] = asciiUpper(cwd[0]);
645	}
646	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{"."}), cwd));
647	} else {
648	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "a/b/c/", "../../.." }), cwd));
649	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{"."}), cwd));
650	}
651	}
652
653	test "os.path.resolveWindows" {
654	if (is_windows) {
655	const cwd = try os.getCwdAlloc(debug.global_allocator);
656	const parsed_cwd = windowsParsePath(cwd);
657	{
658	const result = testResolveWindows([][]const u8{ "/usr/local", "lib\\zig\\std\\array_list.zig" });
659	const expected = try join(debug.global_allocator, [][]const u8{
660	parsed_cwd.disk_designator,
661	"usr\\local\\lib\\zig\\std\\array_list.zig",
662	});
663	if (parsed_cwd.kind == WindowsPath.Kind.Drive) {
664	expected[0] = asciiUpper(parsed_cwd.disk_designator[0]);
665	}
666	testing.expect(mem.eql(u8, result, expected));
667	}
668	{
669	const result = testResolveWindows([][]const u8{ "usr/local", "lib\\zig" });
670	const expected = try join(debug.global_allocator, [][]const u8{
671	cwd,
672	"usr\\local\\lib\\zig",
673	});
674	if (parsed_cwd.kind == WindowsPath.Kind.Drive) {
675	expected[0] = asciiUpper(parsed_cwd.disk_designator[0]);
676	}
677	testing.expect(mem.eql(u8, result, expected));
678	}
679	}
680
681	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:\\a\\b\\c", "/hi", "ok" }), "C:\\hi\\ok"));
682	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/blah\\blah", "d:/games", "c:../a" }), "C:\\blah\\a"));
683	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/blah\\blah", "d:/games", "C:../a" }), "C:\\blah\\a"));
684	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/ignore", "d:\\a/b\\c/d", "\\e.exe" }), "D:\\e.exe"));
685	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/ignore", "c:/some/file" }), "C:\\some\\file"));
686	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "d:/ignore", "d:some/dir//" }), "D:\\ignore\\some\\dir"));
687	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "//server/share", "..", "relative\\" }), "\\\\server\\share\\relative"));
688	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "//" }), "C:\\"));
689	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "//dir" }), "C:\\dir"));
690	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "//server/share" }), "\\\\server\\share\\"));
691	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "//server//share" }), "\\\\server\\share\\"));
692	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "c:/", "///some//dir" }), "C:\\some\\dir"));
693	testing.expect(mem.eql(u8, testResolveWindows([][]const u8{ "C:\\foo\\tmp.3\\", "..\\tmp.3\\cycles\\root.js" }), "C:\\foo\\tmp.3\\cycles\\root.js"));
694	}
695
696	test "os.path.resolvePosix" {
697	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/a/b", "c" }), "/a/b/c"));
698	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/a/b", "c", "//d", "e///" }), "/d/e"));
699	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/a/b/c", "..", "../" }), "/a"));
700	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/", "..", ".." }), "/"));
701	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{"/a/b/c/"}), "/a/b/c"));
702
703	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/var/lib", "../", "file/" }), "/var/file"));
704	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/var/lib", "/../", "file/" }), "/file"));
705	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/some/dir", ".", "/absolute/" }), "/absolute"));
706	testing.expect(mem.eql(u8, testResolvePosix([][]const u8{ "/foo/tmp.3/", "../tmp.3/cycles/root.js" }), "/foo/tmp.3/cycles/root.js"));
707	}
708
709	fn testResolveWindows(paths: []const []const u8) []u8 {
710	return resolveWindows(debug.global_allocator, paths) catch unreachable;
711	}
712
713	fn testResolvePosix(paths: []const []const u8) []u8 {
714	return resolvePosix(debug.global_allocator, paths) catch unreachable;
715	}
716
717	/// If the path is a file in the current directory (no directory component)
718	/// then returns null
719	pub fn dirname(path: []const u8) ?[]const u8 {
720	if (is_windows) {
721	return dirnameWindows(path);
722	} else {
723	return dirnamePosix(path);
724	}
725	}
726
727	pub fn dirnameWindows(path: []const u8) ?[]const u8 {
728	if (path.len == 0)
729	return null;
730
731	const root_slice = diskDesignatorWindows(path);
732	if (path.len == root_slice.len)
733	return path;
734
735	const have_root_slash = path.len > root_slice.len and (path[root_slice.len] == '/' or path[root_slice.len] == '\\');
736
737	var end_index: usize = path.len - 1;
738
739	while ((path[end_index] == '/' or path[end_index] == '\\') and end_index > root_slice.len) {
740	if (end_index == 0)
741	return null;
742	end_index -= 1;
743	}
744
745	while (path[end_index] != '/' and path[end_index] != '\\' and end_index > root_slice.len) {
746	if (end_index == 0)
747	return null;
748	end_index -= 1;
749	}
750
751	if (have_root_slash and end_index == root_slice.len) {
752	end_index += 1;
753	}
754
755	if (end_index == 0)
756	return null;
757
758	return path[0..end_index];
759	}
760
761	pub fn dirnamePosix(path: []const u8) ?[]const u8 {
762	if (path.len == 0)
763	return null;
764
765	var end_index: usize = path.len - 1;
766	while (path[end_index] == '/') {
767	if (end_index == 0)
768	return path[0..1];
769	end_index -= 1;
770	}
771
772	while (path[end_index] != '/') {
773	if (end_index == 0)
774	return null;
775	end_index -= 1;
776	}
777
778	if (end_index == 0 and path[end_index] == '/')
779	return path[0..1];
780
781	if (end_index == 0)
782	return null;
783
784	return path[0..end_index];
785	}
786
787	test "os.path.dirnamePosix" {
788	testDirnamePosix("/a/b/c", "/a/b");
789	testDirnamePosix("/a/b/c///", "/a/b");
790	testDirnamePosix("/a", "/");
791	testDirnamePosix("/", "/");
792	testDirnamePosix("////", "/");
793	testDirnamePosix("", null);
794	testDirnamePosix("a", null);
795	testDirnamePosix("a/", null);
796	testDirnamePosix("a//", null);
797	}
798
799	test "os.path.dirnameWindows" {
800	testDirnameWindows("c:\\", "c:\\");
801	testDirnameWindows("c:\\foo", "c:\\");
802	testDirnameWindows("c:\\foo\\", "c:\\");
803	testDirnameWindows("c:\\foo\\bar", "c:\\foo");
804	testDirnameWindows("c:\\foo\\bar\\", "c:\\foo");
805	testDirnameWindows("c:\\foo\\bar\\baz", "c:\\foo\\bar");
806	testDirnameWindows("\\", "\\");
807	testDirnameWindows("\\foo", "\\");
808	testDirnameWindows("\\foo\\", "\\");
809	testDirnameWindows("\\foo\\bar", "\\foo");
810	testDirnameWindows("\\foo\\bar\\", "\\foo");
811	testDirnameWindows("\\foo\\bar\\baz", "\\foo\\bar");
812	testDirnameWindows("c:", "c:");
813	testDirnameWindows("c:foo", "c:");
814	testDirnameWindows("c:foo\\", "c:");
815	testDirnameWindows("c:foo\\bar", "c:foo");
816	testDirnameWindows("c:foo\\bar\\", "c:foo");
817	testDirnameWindows("c:foo\\bar\\baz", "c:foo\\bar");
818	testDirnameWindows("file:stream", null);
819	testDirnameWindows("dir\\file:stream", "dir");
820	testDirnameWindows("\\\\unc\\share", "\\\\unc\\share");
821	testDirnameWindows("\\\\unc\\share\\foo", "\\\\unc\\share\\");
822	testDirnameWindows("\\\\unc\\share\\foo\\", "\\\\unc\\share\\");
823	testDirnameWindows("\\\\unc\\share\\foo\\bar", "\\\\unc\\share\\foo");
824	testDirnameWindows("\\\\unc\\share\\foo\\bar\\", "\\\\unc\\share\\foo");
825	testDirnameWindows("\\\\unc\\share\\foo\\bar\\baz", "\\\\unc\\share\\foo\\bar");
826	testDirnameWindows("/a/b/", "/a");
827	testDirnameWindows("/a/b", "/a");
828	testDirnameWindows("/a", "/");
829	testDirnameWindows("", null);
830	testDirnameWindows("/", "/");
831	testDirnameWindows("////", "/");
832	testDirnameWindows("foo", null);
833	}
834
835	fn testDirnamePosix(input: []const u8, expected_output: ?[]const u8) void {
836	if (dirnamePosix(input)) \|output\| {
837	testing.expect(mem.eql(u8, output, expected_output.?));
838	} else {
839	testing.expect(expected_output == null);
840	}
841	}
842
843	fn testDirnameWindows(input: []const u8, expected_output: ?[]const u8) void {
844	if (dirnameWindows(input)) \|output\| {
845	testing.expect(mem.eql(u8, output, expected_output.?));
846	} else {
847	testing.expect(expected_output == null);
848	}
849	}
850
851	pub fn basename(path: []const u8) []const u8 {
852	if (is_windows) {
853	return basenameWindows(path);
854	} else {
855	return basenamePosix(path);
856	}
857	}
858
859	pub fn basenamePosix(path: []const u8) []const u8 {
860	if (path.len == 0)
861	return []u8{};
862
863	var end_index: usize = path.len - 1;
864	while (path[end_index] == '/') {
865	if (end_index == 0)
866	return []u8{};
867	end_index -= 1;
868	}
869	var start_index: usize = end_index;
870	end_index += 1;
871	while (path[start_index] != '/') {
872	if (start_index == 0)
873	return path[0..end_index];
874	start_index -= 1;
875	}
876
877	return path[start_index + 1 .. end_index];
878	}
879
880	pub fn basenameWindows(path: []const u8) []const u8 {
881	if (path.len == 0)
882	return []u8{};
883
884	var end_index: usize = path.len - 1;
885	while (true) {
886	const byte = path[end_index];
887	if (byte == '/' or byte == '\\') {
888	if (end_index == 0)
889	return []u8{};
890	end_index -= 1;
891	continue;
892	}
893	if (byte == ':' and end_index == 1) {
894	return []u8{};
895	}
896	break;
897	}
898
899	var start_index: usize = end_index;
900	end_index += 1;
901	while (path[start_index] != '/' and path[start_index] != '\\' and
902	!(path[start_index] == ':' and start_index == 1))
903	{
904	if (start_index == 0)
905	return path[0..end_index];
906	start_index -= 1;
907	}
908
909	return path[start_index + 1 .. end_index];
910	}
911
912	test "os.path.basename" {
913	testBasename("", "");
914	testBasename("/", "");
915	testBasename("/dir/basename.ext", "basename.ext");
916	testBasename("/basename.ext", "basename.ext");
917	testBasename("basename.ext", "basename.ext");
918	testBasename("basename.ext/", "basename.ext");
919	testBasename("basename.ext//", "basename.ext");
920	testBasename("/aaa/bbb", "bbb");
921	testBasename("/aaa/", "aaa");
922	testBasename("/aaa/b", "b");
923	testBasename("/a/b", "b");
924	testBasename("//a", "a");
925
926	testBasenamePosix("\\dir\\basename.ext", "\\dir\\basename.ext");
927	testBasenamePosix("\\basename.ext", "\\basename.ext");
928	testBasenamePosix("basename.ext", "basename.ext");
929	testBasenamePosix("basename.ext\\", "basename.ext\\");
930	testBasenamePosix("basename.ext\\\\", "basename.ext\\\\");
931	testBasenamePosix("foo", "foo");
932
933	testBasenameWindows("\\dir\\basename.ext", "basename.ext");
934	testBasenameWindows("\\basename.ext", "basename.ext");
935	testBasenameWindows("basename.ext", "basename.ext");
936	testBasenameWindows("basename.ext\\", "basename.ext");
937	testBasenameWindows("basename.ext\\\\", "basename.ext");
938	testBasenameWindows("foo", "foo");
939	testBasenameWindows("C:", "");
940	testBasenameWindows("C:.", ".");
941	testBasenameWindows("C:\\", "");
942	testBasenameWindows("C:\\dir\\base.ext", "base.ext");
943	testBasenameWindows("C:\\basename.ext", "basename.ext");
944	testBasenameWindows("C:basename.ext", "basename.ext");
945	testBasenameWindows("C:basename.ext\\", "basename.ext");
946	testBasenameWindows("C:basename.ext\\\\", "basename.ext");
947	testBasenameWindows("C:foo", "foo");
948	testBasenameWindows("file:stream", "file:stream");
949	}
950
951	fn testBasename(input: []const u8, expected_output: []const u8) void {
952	testing.expectEqualSlices(u8, expected_output, basename(input));
953	}
954
955	fn testBasenamePosix(input: []const u8, expected_output: []const u8) void {
956	testing.expectEqualSlices(u8, expected_output, basenamePosix(input));
957	}
958
959	fn testBasenameWindows(input: []const u8, expected_output: []const u8) void {
960	testing.expectEqualSlices(u8, expected_output, basenameWindows(input));
961	}
962
963	/// Returns the relative path from `from` to `to`. If `from` and `to` each
964	/// resolve to the same path (after calling `resolve` on each), a zero-length
965	/// string is returned.
966	/// On Windows this canonicalizes the drive to a capital letter and paths to `\\`.
967	pub fn relative(allocator: *Allocator, from: []const u8, to: []const u8) ![]u8 {
968	if (is_windows) {
969	return relativeWindows(allocator, from, to);
970	} else {
971	return relativePosix(allocator, from, to);
972	}
973	}
974
975	pub fn relativeWindows(allocator: *Allocator, from: []const u8, to: []const u8) ![]u8 {
976	const resolved_from = try resolveWindows(allocator, [][]const u8{from});
977	defer allocator.free(resolved_from);
978
979	var clean_up_resolved_to = true;
980	const resolved_to = try resolveWindows(allocator, [][]const u8{to});
981	defer if (clean_up_resolved_to) allocator.free(resolved_to);
982
983	const parsed_from = windowsParsePath(resolved_from);
984	const parsed_to = windowsParsePath(resolved_to);
985	const result_is_to = x: {
986	if (parsed_from.kind != parsed_to.kind) {
987	break :x true;
988	} else switch (parsed_from.kind) {
989	WindowsPath.Kind.NetworkShare => {
990	break :x !networkShareServersEql(parsed_to.disk_designator, parsed_from.disk_designator);
991	},
992	WindowsPath.Kind.Drive => {
993	break :x asciiUpper(parsed_from.disk_designator[0]) != asciiUpper(parsed_to.disk_designator[0]);
994	},
995	else => unreachable,
996	}
997	};
998
999	if (result_is_to) {
1000	clean_up_resolved_to = false;
1001	return resolved_to;
1002	}
1003
1004	var from_it = mem.tokenize(resolved_from, "/\\");
1005	var to_it = mem.tokenize(resolved_to, "/\\");
1006	while (true) {
1007	const from_component = from_it.next() orelse return mem.dupe(allocator, u8, to_it.rest());
1008	const to_rest = to_it.rest();
1009	if (to_it.next()) \|to_component\| {
1010	// TODO ASCII is wrong, we actually need full unicode support to compare paths.
1011	if (asciiEqlIgnoreCase(from_component, to_component))
1012	continue;
1013	}
1014	var up_count: usize = 1;
1015	while (from_it.next()) \|_\| {
1016	up_count += 1;
1017	}
1018	const up_index_end = up_count * "..\\".len;
1019	const result = try allocator.alloc(u8, up_index_end + to_rest.len);
1020	errdefer allocator.free(result);
1021
1022	var result_index: usize = 0;
1023	while (result_index < up_index_end) {
1024	result[result_index] = '.';
1025	result_index += 1;
1026	result[result_index] = '.';
1027	result_index += 1;
1028	result[result_index] = '\\';
1029	result_index += 1;
1030	}
1031	// shave off the trailing slash
1032	result_index -= 1;
1033
1034	var rest_it = mem.tokenize(to_rest, "/\\");
1035	while (rest_it.next()) \|to_component\| {
1036	result[result_index] = '\\';
1037	result_index += 1;
1038	mem.copy(u8, result[result_index..], to_component);
1039	result_index += to_component.len;
1040	}
1041
1042	return result[0..result_index];
1043	}
1044
1045	return []u8{};
1046	}
1047
1048	pub fn relativePosix(allocator: *Allocator, from: []const u8, to: []const u8) ![]u8 {
1049	const resolved_from = try resolvePosix(allocator, [][]const u8{from});
1050	defer allocator.free(resolved_from);
1051
1052	const resolved_to = try resolvePosix(allocator, [][]const u8{to});
1053	defer allocator.free(resolved_to);
1054
1055	var from_it = mem.tokenize(resolved_from, "/");
1056	var to_it = mem.tokenize(resolved_to, "/");
1057	while (true) {
1058	const from_component = from_it.next() orelse return mem.dupe(allocator, u8, to_it.rest());
1059	const to_rest = to_it.rest();
1060	if (to_it.next()) \|to_component\| {
1061	if (mem.eql(u8, from_component, to_component))
1062	continue;
1063	}
1064	var up_count: usize = 1;
1065	while (from_it.next()) \|_\| {
1066	up_count += 1;
1067	}
1068	const up_index_end = up_count * "../".len;
1069	const result = try allocator.alloc(u8, up_index_end + to_rest.len);
1070	errdefer allocator.free(result);
1071
1072	var result_index: usize = 0;
1073	while (result_index < up_index_end) {
1074	result[result_index] = '.';
1075	result_index += 1;
1076	result[result_index] = '.';
1077	result_index += 1;
1078	result[result_index] = '/';
1079	result_index += 1;
1080	}
1081	if (to_rest.len == 0) {
1082	// shave off the trailing slash
1083	return result[0 .. result_index - 1];
1084	}
1085
1086	mem.copy(u8, result[result_index..], to_rest);
1087	return result;
1088	}
1089
1090	return []u8{};
1091	}
1092
1093	test "os.path.relative" {
1094	testRelativeWindows("c:/blah\\blah", "d:/games", "D:\\games");
1095	testRelativeWindows("c:/aaaa/bbbb", "c:/aaaa", "..");
1096	testRelativeWindows("c:/aaaa/bbbb", "c:/cccc", "..\\..\\cccc");
1097	testRelativeWindows("c:/aaaa/bbbb", "c:/aaaa/bbbb", "");
1098	testRelativeWindows("c:/aaaa/bbbb", "c:/aaaa/cccc", "..\\cccc");
1099	testRelativeWindows("c:/aaaa/", "c:/aaaa/cccc", "cccc");
1100	testRelativeWindows("c:/", "c:\\aaaa\\bbbb", "aaaa\\bbbb");
1101	testRelativeWindows("c:/aaaa/bbbb", "d:\\", "D:\\");
1102	testRelativeWindows("c:/AaAa/bbbb", "c:/aaaa/bbbb", "");
1103	testRelativeWindows("c:/aaaaa/", "c:/aaaa/cccc", "..\\aaaa\\cccc");
1104	testRelativeWindows("C:\\foo\\bar\\baz\\quux", "C:\\", "..\\..\\..\\..");
1105	testRelativeWindows("C:\\foo\\test", "C:\\foo\\test\\bar\\package.json", "bar\\package.json");
1106	testRelativeWindows("C:\\foo\\bar\\baz-quux", "C:\\foo\\bar\\baz", "..\\baz");
1107	testRelativeWindows("C:\\foo\\bar\\baz", "C:\\foo\\bar\\baz-quux", "..\\baz-quux");
1108	testRelativeWindows("\\\\foo\\bar", "\\\\foo\\bar\\baz", "baz");
1109	testRelativeWindows("\\\\foo\\bar\\baz", "\\\\foo\\bar", "..");
1110	testRelativeWindows("\\\\foo\\bar\\baz-quux", "\\\\foo\\bar\\baz", "..\\baz");
1111	testRelativeWindows("\\\\foo\\bar\\baz", "\\\\foo\\bar\\baz-quux", "..\\baz-quux");
1112	testRelativeWindows("C:\\baz-quux", "C:\\baz", "..\\baz");
1113	testRelativeWindows("C:\\baz", "C:\\baz-quux", "..\\baz-quux");
1114	testRelativeWindows("\\\\foo\\baz-quux", "\\\\foo\\baz", "..\\baz");
1115	testRelativeWindows("\\\\foo\\baz", "\\\\foo\\baz-quux", "..\\baz-quux");
1116	testRelativeWindows("C:\\baz", "\\\\foo\\bar\\baz", "\\\\foo\\bar\\baz");
1117	testRelativeWindows("\\\\foo\\bar\\baz", "C:\\baz", "C:\\baz");
1118
1119	testRelativePosix("/var/lib", "/var", "..");
1120	testRelativePosix("/var/lib", "/bin", "../../bin");
1121	testRelativePosix("/var/lib", "/var/lib", "");
1122	testRelativePosix("/var/lib", "/var/apache", "../apache");
1123	testRelativePosix("/var/", "/var/lib", "lib");
1124	testRelativePosix("/", "/var/lib", "var/lib");
1125	testRelativePosix("/foo/test", "/foo/test/bar/package.json", "bar/package.json");
1126	testRelativePosix("/Users/a/web/b/test/mails", "/Users/a/web/b", "../..");
1127	testRelativePosix("/foo/bar/baz-quux", "/foo/bar/baz", "../baz");
1128	testRelativePosix("/foo/bar/baz", "/foo/bar/baz-quux", "../baz-quux");
1129	testRelativePosix("/baz-quux", "/baz", "../baz");
1130	testRelativePosix("/baz", "/baz-quux", "../baz-quux");
1131	}
1132
1133	fn testRelativePosix(from: []const u8, to: []const u8, expected_output: []const u8) void {
1134	const result = relativePosix(debug.global_allocator, from, to) catch unreachable;
1135	testing.expectEqualSlices(u8, expected_output, result);
1136	}
1137
1138	fn testRelativeWindows(from: []const u8, to: []const u8, expected_output: []const u8) void {
1139	const result = relativeWindows(debug.global_allocator, from, to) catch unreachable;
1140	testing.expectEqualSlices(u8, expected_output, result);
1141	}
1142
1143	pub const RealError = error{
1144	FileNotFound,
1145	AccessDenied,
1146	NameTooLong,
1147	NotSupported,
1148	NotDir,
1149	SymLinkLoop,
1150	InputOutput,
1151	FileTooBig,
1152	IsDir,
1153	ProcessFdQuotaExceeded,
1154	SystemFdQuotaExceeded,
1155	NoDevice,
1156	SystemResources,
1157	NoSpaceLeft,
1158	FileSystem,
1159	BadPathName,
1160	DeviceBusy,
1161
1162	/// On Windows, file paths must be valid Unicode.
1163	InvalidUtf8,
1164
1165	/// TODO remove this possibility
1166	PathAlreadyExists,
1167
1168	/// TODO remove this possibility
1169	Unexpected,
1170	};
1171
1172	/// Call from Windows-specific code if you already have a UTF-16LE encoded, null terminated string.
1173	/// Otherwise use `real` or `realC`.
1174	pub fn realW(out_buffer: [os.MAX_PATH_BYTES]u8, pathname: []const u16) RealError![]u8 {
1175	const h_file = windows.CreateFileW(
1176	pathname,
1177	windows.GENERIC_READ,
1178	windows.FILE_SHARE_READ,
1179	null,
1180	windows.OPEN_EXISTING,
1181	windows.FILE_ATTRIBUTE_NORMAL,
1182	null,
1183	);
1184	if (h_file == windows.INVALID_HANDLE_VALUE) {
1185	const err = windows.GetLastError();
1186	switch (err) {
1187	windows.ERROR.FILE_NOT_FOUND => return error.FileNotFound,
1188	windows.ERROR.ACCESS_DENIED => return error.AccessDenied,
1189	windows.ERROR.FILENAME_EXCED_RANGE => return error.NameTooLong,
1190	else => return os.unexpectedErrorWindows(err),
1191	}
1192	}
1193	defer os.close(h_file);
1194	var utf16le_buf: [windows_util.PATH_MAX_WIDE]u16 = undefined;
1195	const casted_len = @intCast(windows.DWORD, utf16le_buf.len); // TODO shouldn't need this cast
1196	const result = windows.GetFinalPathNameByHandleW(h_file, &utf16le_buf, casted_len, windows.VOLUME_NAME_DOS);
1197	assert(result <= utf16le_buf.len);
1198	if (result == 0) {
1199	const err = windows.GetLastError();
1200	switch (err) {
1201	windows.ERROR.FILE_NOT_FOUND => return error.FileNotFound,
1202	windows.ERROR.PATH_NOT_FOUND => return error.FileNotFound,
1203	windows.ERROR.NOT_ENOUGH_MEMORY => return error.SystemResources,
1204	windows.ERROR.FILENAME_EXCED_RANGE => return error.NameTooLong,
1205	windows.ERROR.INVALID_PARAMETER => unreachable,
1206	else => return os.unexpectedErrorWindows(err),
1207	}
1208	}
1209	const utf16le_slice = utf16le_buf[0..result];
1210
1211	// windows returns \\?\ prepended to the path
1212	// we strip it because nobody wants \\?\ prepended to their path
1213	const prefix = []u16{ '\\', '\\', '?', '\\' };
1214	const start_index = if (mem.startsWith(u16, utf16le_slice, prefix)) prefix.len else 0;
1215
1216	// Trust that Windows gives us valid UTF-16LE.
1217	const end_index = std.unicode.utf16leToUtf8(out_buffer, utf16le_slice[start_index..]) catch unreachable;
1218	return out_buffer[0..end_index];
1219	}
1220
1221	/// See `real`
1222	/// Use this when you have a null terminated pointer path.
1223	pub fn realC(out_buffer: [os.MAX_PATH_BYTES]u8, pathname: []const u8) RealError![]u8 {
1224	switch (builtin.os) {
1225	Os.windows => {
1226	const pathname_w = try windows_util.cStrToPrefixedFileW(pathname);
1227	return realW(out_buffer, pathname_w);
1228	},
1229	Os.freebsd, Os.netbsd, Os.macosx, Os.ios => {
1230	// TODO instead of calling the libc function here, port the implementation to Zig
1231	const err = posix.getErrno(posix.realpath(pathname, out_buffer));
1232	switch (err) {
1233	0 => return mem.toSlice(u8, out_buffer),
1234	posix.EINVAL => unreachable,
1235	posix.EBADF => unreachable,
1236	posix.EFAULT => unreachable,
1237	posix.EACCES => return error.AccessDenied,
1238	posix.ENOENT => return error.FileNotFound,
1239	posix.ENOTSUP => return error.NotSupported,
1240	posix.ENOTDIR => return error.NotDir,
1241	posix.ENAMETOOLONG => return error.NameTooLong,
1242	posix.ELOOP => return error.SymLinkLoop,
1243	posix.EIO => return error.InputOutput,
1244	else => return os.unexpectedErrorPosix(err),
1245	}
1246	},
1247	Os.linux => {
1248	const fd = try os.posixOpenC(pathname, posix.O_PATH \| posix.O_NONBLOCK \| posix.O_CLOEXEC, 0);
1249	defer os.close(fd);
1250
1251	var buf: ["/proc/self/fd/-2147483648\x00".len]u8 = undefined;
1252	const proc_path = fmt.bufPrint(buf[0..], "/proc/self/fd/{}\x00", fd) catch unreachable;
1253
1254	return os.readLinkC(out_buffer, proc_path.ptr);
1255	},
1256	else => @compileError("TODO implement os.path.real for " ++ @tagName(builtin.os)),
1257	}
1258	}
1259
1260	/// Return the canonicalized absolute pathname.
1261	/// Expands all symbolic links and resolves references to `.`, `..`, and
1262	/// extra `/` characters in ::pathname.
1263	/// The return value is a slice of out_buffer, and not necessarily from the beginning.
1264	pub fn real(out_buffer: *[os.MAX_PATH_BYTES]u8, pathname: []const u8) RealError![]u8 {
1265	switch (builtin.os) {
1266	Os.windows => {
1267	const pathname_w = try windows_util.sliceToPrefixedFileW(pathname);
1268	return realW(out_buffer, &pathname_w);
1269	},
1270	Os.macosx, Os.ios, Os.linux, Os.freebsd, Os.netbsd => {
1271	const pathname_c = try os.toPosixPath(pathname);
1272	return realC(out_buffer, &pathname_c);
1273	},
1274	else => @compileError("Unsupported OS"),
1275	}
1276	}
1277
1278	/// `real`, except caller must free the returned memory.
1279	pub fn realAlloc(allocator: *Allocator, pathname: []const u8) ![]u8 {
1280	var buf: [os.MAX_PATH_BYTES]u8 = undefined;
1281	return mem.dupe(allocator, u8, try real(&buf, pathname));
1282	}
1283
1284	test "os.path.real" {
1285	// at least call it so it gets compiled
1286	var buf: [os.MAX_PATH_BYTES]u8 = undefined;
1287	testing.expectError(error.FileNotFound, real(&buf, "definitely_bogus_does_not_exist1234"));
1288	}

std/os/test.zig+55-33

 @@ -1,8 +1,12 @@
 const std = @import("../std.zig");
 const os = std.os;
+const testing = std.testing;
 const expect = std.testing.expect;
 const io = std.io;
+const fs = std.fs;
 const mem = std.mem;
+const File = std.fs.File;
+const Thread = std.Thread;
 const a = std.debug.global_allocator;
 @@ -11,11 +15,11 @@ const AtomicRmwOp = builtin.AtomicRmwOp;
 const AtomicOrder = builtin.AtomicOrder;
 test "makePath, put some files in it, deleteTree" {
-    try os.makePath(a, "os_test_tmp" ++ os.path.sep_str ++ "b" ++ os.path.sep_str ++ "c");
+    try fs.makePath(a, "os_test_tmp" ++ fs.path.sep_str ++ "b" ++ fs.path.sep_str ++ "c");
-    try io.writeFile("os_test_tmp" ++ os.path.sep_str ++ "b" ++ os.path.sep_str ++ "c" ++ os.path.sep_str ++ "file.txt", "nonsense");
+    try io.writeFile("os_test_tmp" ++ fs.path.sep_str ++ "b" ++ fs.path.sep_str ++ "c" ++ fs.path.sep_str ++ "file.txt", "nonsense");
-    try io.writeFile("os_test_tmp" ++ os.path.sep_str ++ "b" ++ os.path.sep_str ++ "file2.txt", "blah");
+    try io.writeFile("os_test_tmp" ++ fs.path.sep_str ++ "b" ++ fs.path.sep_str ++ "file2.txt", "blah");
-    try os.deleteTree(a, "os_test_tmp");
+    try fs.deleteTree(a, "os_test_tmp");
-    if (os.Dir.open(a, "os_test_tmp")) |dir| {
+    if (fs.Dir.open(a, "os_test_tmp")) |dir| {
         @panic("expected error");
     } else |err| {
         expect(err == error.FileNotFound);
 @@ -23,40 +27,37 @@ test "makePath, put some files in it, deleteTree" {
 }
 test "access file" {
-    try os.makePath(a, "os_test_tmp");
+    try fs.makePath(a, "os_test_tmp");
-    if (os.File.access("os_test_tmp" ++ os.path.sep_str ++ "file.txt")) |ok| {
+    if (File.access("os_test_tmp" ++ fs.path.sep_str ++ "file.txt")) |ok| {
         @panic("expected error");
     } else |err| {
         expect(err == error.FileNotFound);
     }
-    try io.writeFile("os_test_tmp" ++ os.path.sep_str ++ "file.txt", "");
+    try io.writeFile("os_test_tmp" ++ fs.path.sep_str ++ "file.txt", "");
-    try os.File.access("os_test_tmp" ++ os.path.sep_str ++ "file.txt");
+    try os.access("os_test_tmp" ++ fs.path.sep_str ++ "file.txt", os.F_OK);
-    try os.deleteTree(a, "os_test_tmp");
+    try fs.deleteTree(a, "os_test_tmp");
 }
-fn testThreadIdFn(thread_id: *os.Thread.Id) void {
+fn testThreadIdFn(thread_id: *Thread.Id) void {
-    thread_id.* = os.Thread.getCurrentId();
+    thread_id.* = Thread.getCurrentId();
 }
-test "std.os.Thread.getCurrentId" {
+test "std.Thread.getCurrentId" {
     if (builtin.single_threaded) return error.SkipZigTest;
-    var thread_current_id: os.Thread.Id = undefined;
+    var thread_current_id: Thread.Id = undefined;
-    const thread = try os.spawnThread(&thread_current_id, testThreadIdFn);
+    const thread = try Thread.spawn(&thread_current_id, testThreadIdFn);
     const thread_id = thread.handle();
     thread.wait();
-    if (os.Thread.use_pthreads) {
+    if (Thread.use_pthreads) {
         expect(thread_current_id == thread_id);
+    } else if (os.windows.is_the_target) {
+        expect(Thread.getCurrentId() != thread_current_id);
     } else {
-        switch (builtin.os) {
+        // If the thread completes very quickly, then thread_id can be 0. See the
-            builtin.Os.windows => expect(os.Thread.getCurrentId() != thread_current_id),
+        // documentation comments for `std.Thread.handle`.
-            else => {
+        expect(thread_id == 0 or thread_current_id == thread_id);
-                // If the thread completes very quickly, then thread_id can be 0. See the
-                // documentation comments for `std.os.Thread.handle`.
-                expect(thread_id == 0 or thread_current_id == thread_id);
-            },
-        }
     }
 }
 @@ -65,10 +66,10 @@ test "spawn threads" {
     var shared_ctx: i32 = 1;
-    const thread1 = try std.os.spawnThread({}, start1);
+    const thread1 = try Thread.spawn({}, start1);
-    const thread2 = try std.os.spawnThread(&shared_ctx, start2);
+    const thread2 = try Thread.spawn(&shared_ctx, start2);
-    const thread3 = try std.os.spawnThread(&shared_ctx, start2);
+    const thread3 = try Thread.spawn(&shared_ctx, start2);
-    const thread4 = try std.os.spawnThread(&shared_ctx, start2);
+    const thread4 = try Thread.spawn(&shared_ctx, start2);
     thread1.wait();
     thread2.wait();
 @@ -88,7 +89,7 @@ fn start2(ctx: *i32) u8 {
 }
 test "cpu count" {
-    const cpu_count = try std.os.cpuCount(a);
+    const cpu_count = try Thread.cpuCount();
     expect(cpu_count >= 1);
 }
 @@ -101,7 +102,7 @@ test "AtomicFile" {
         \\ this is a test file
     ;
     {
-        var af = try os.AtomicFile.init(test_out_file, os.File.default_mode);
+        var af = try fs.AtomicFile.init(test_out_file, File.default_mode);
         defer af.deinit();
         try af.file.write(test_content);
         try af.finish();
 @@ -109,13 +110,13 @@ test "AtomicFile" {
     const content = try io.readFileAlloc(allocator, test_out_file);
     expect(mem.eql(u8, content, test_content));
-    try os.deleteFile(test_out_file);
+    try fs.deleteFile(test_out_file);
 }
 test "thread local storage" {
     if (builtin.single_threaded) return error.SkipZigTest;
-    const thread1 = try std.os.spawnThread({}, testTls);
+    const thread1 = try Thread.spawn({}, testTls);
-    const thread2 = try std.os.spawnThread({}, testTls);
+    const thread2 = try Thread.spawn({}, testTls);
     testTls({});
     thread1.wait();
     thread2.wait();
 @@ -127,3 +128,24 @@ fn testTls(context: void) void {
     x += 1;
     if (x != 1235) @panic("bad end value");
 }
+test "getrandom" {
+    var buf_a: [50]u8 = undefined;
+    var buf_b: [50]u8 = undefined;
+    try os.getrandom(&buf_a);
+    try os.getrandom(&buf_b);
+    // If this test fails the chance is significantly higher that there is a bug than
+    // that two sets of 50 bytes were equal.
+    expect(!mem.eql(u8, buf_a, buf_b));
+}
+test "getcwd" {
+    // at least call it so it gets compiled
+    var buf: [std.fs.MAX_PATH_BYTES]u8 = undefined;
+    _ = os.getcwd(&buf) catch undefined;
+}
+test "realpath" {
+    var buf: [std.fs.MAX_PATH_BYTES]u8 = undefined;
+    testing.expectError(error.FileNotFound, fs.realpath("definitely_bogus_does_not_exist1234", &buf));
+}

std/os/time.zig deleted-307

...	@@ -1,307 +0,0 @@
1	const std = @import("../std.zig");
2	const builtin = @import("builtin");
3	const Os = builtin.Os;
4	const debug = std.debug;
5	const testing = std.testing;
6	const math = std.math;
7
8	const windows = std.os.windows;
9	const linux = std.os.linux;
10	const darwin = std.os.darwin;
11	const wasi = std.os.wasi;
12	const posix = std.os.posix;
13
14	pub const epoch = @import("epoch.zig");
15
16	/// Spurious wakeups are possible and no precision of timing is guaranteed.
17	pub fn sleep(nanoseconds: u64) void {
18	switch (builtin.os) {
19	Os.linux, Os.macosx, Os.ios, Os.freebsd, Os.netbsd => {
20	const s = nanoseconds / ns_per_s;
21	const ns = nanoseconds % ns_per_s;
22	posixSleep(s, ns);
23	},
24	Os.windows => {
25	const ns_per_ms = ns_per_s / ms_per_s;
26	const milliseconds = nanoseconds / ns_per_ms;
27	const ms_that_will_fit = std.math.cast(windows.DWORD, milliseconds) catch std.math.maxInt(windows.DWORD);
28	windows.Sleep(ms_that_will_fit);
29	},
30	else => @compileError("Unsupported OS"),
31	}
32	}
33
34	/// Spurious wakeups are possible and no precision of timing is guaranteed.
35	pub fn posixSleep(seconds: u64, nanoseconds: u64) void {
36	var req = posix.timespec{
37	.tv_sec = std.math.cast(isize, seconds) catch std.math.maxInt(isize),
38	.tv_nsec = std.math.cast(isize, nanoseconds) catch std.math.maxInt(isize),
39	};
40	var rem: posix.timespec = undefined;
41	while (true) {
42	const ret_val = posix.nanosleep(&req, &rem);
43	const err = posix.getErrno(ret_val);
44	switch (err) {
45	posix.EFAULT => unreachable,
46	posix.EINVAL => {
47	// Sometimes Darwin returns EINVAL for no reason.
48	// We treat it as a spurious wakeup.
49	return;
50	},
51	posix.EINTR => {
52	req = rem;
53	continue;
54	},
55	// This prong handles success as well as unexpected errors.
56	else => return,
57	}
58	}
59	}
60
61	/// Get the posix timestamp, UTC, in seconds
62	pub fn timestamp() u64 {
63	return @divFloor(milliTimestamp(), ms_per_s);
64	}
65
66	/// Get the posix timestamp, UTC, in milliseconds
67	pub const milliTimestamp = switch (builtin.os) {
68	Os.windows => milliTimestampWindows,
69	Os.linux, Os.freebsd, Os.netbsd => milliTimestampPosix,
70	Os.macosx, Os.ios => milliTimestampDarwin,
71	Os.wasi => milliTimestampWasi,
72	else => @compileError("Unsupported OS"),
73	};
74
75	fn milliTimestampWasi() u64 {
76	var ns: wasi.timestamp_t = undefined;
77
78	// TODO: Verify that precision is ignored
79	const err = wasi.clock_time_get(wasi.CLOCK_REALTIME, 1, &ns);
80	debug.assert(err == wasi.ESUCCESS);
81
82	const ns_per_ms = 1000;
83	return @divFloor(ns, ns_per_ms);
84	}
85
86	fn milliTimestampWindows() u64 {
87	//FileTime has a granularity of 100 nanoseconds
88	// and uses the NTFS/Windows epoch
89	var ft: windows.FILETIME = undefined;
90	windows.GetSystemTimeAsFileTime(&ft);
91	const hns_per_ms = (ns_per_s / 100) / ms_per_s;
92	const epoch_adj = epoch.windows * ms_per_s;
93
94	const ft64 = (u64(ft.dwHighDateTime) << 32) \| ft.dwLowDateTime;
95	return @divFloor(ft64, hns_per_ms) - -epoch_adj;
96	}
97
98	fn milliTimestampDarwin() u64 {
99	var tv: darwin.timeval = undefined;
100	var err = darwin.gettimeofday(&tv, null);
101	debug.assert(err == 0);
102	const sec_ms = tv.tv_sec * ms_per_s;
103	const usec_ms = @divFloor(tv.tv_usec, us_per_s / ms_per_s);
104	return @intCast(u64, sec_ms + usec_ms);
105	}
106
107	fn milliTimestampPosix() u64 {
108	//From what I can tell there's no reason clock_gettime
109	// should ever fail for us with CLOCK_REALTIME,
110	// seccomp aside.
111	var ts: posix.timespec = undefined;
112	const err = posix.clock_gettime(posix.CLOCK_REALTIME, &ts);
113	debug.assert(err == 0);
114	const sec_ms = @intCast(u64, ts.tv_sec) * ms_per_s;
115	const nsec_ms = @divFloor(@intCast(u64, ts.tv_nsec), ns_per_s / ms_per_s);
116	return sec_ms + nsec_ms;
117	}
118
119	/// Multiples of a base unit (nanoseconds)
120	pub const nanosecond = 1;
121	pub const microsecond = 1000 * nanosecond;
122	pub const millisecond = 1000 * microsecond;
123	pub const second = 1000 * millisecond;
124	pub const minute = 60 * second;
125	pub const hour = 60 * minute;
126
127	/// Divisions of a second
128	pub const ns_per_s = 1000000000;
129	pub const us_per_s = 1000000;
130	pub const ms_per_s = 1000;
131	pub const cs_per_s = 100;
132
133	/// Common time divisions
134	pub const s_per_min = 60;
135	pub const s_per_hour = s_per_min * 60;
136	pub const s_per_day = s_per_hour * 24;
137	pub const s_per_week = s_per_day * 7;
138
139	/// A monotonic high-performance timer.
140	/// Timer.start() must be called to initialize the struct, which captures
141	/// the counter frequency on windows and darwin, records the resolution,
142	/// and gives the user an opportunity to check for the existnece of
143	/// monotonic clocks without forcing them to check for error on each read.
144	/// .resolution is in nanoseconds on all platforms but .start_time's meaning
145	/// depends on the OS. On Windows and Darwin it is a hardware counter
146	/// value that requires calculation to convert to a meaninful unit.
147	pub const Timer = struct {
148
149	//if we used resolution's value when performing the
150	// performance counter calc on windows/darwin, it would
151	// be less precise
152	frequency: switch (builtin.os) {
153	Os.windows => u64,
154	Os.macosx, Os.ios => darwin.mach_timebase_info_data,
155	else => void,
156	},
157	resolution: u64,
158	start_time: u64,
159
160	//At some point we may change our minds on RAW, but for now we're
161	// sticking with posix standard MONOTONIC. For more information, see:
162	// https://github.com/ziglang/zig/pull/933
163	//
164	//const monotonic_clock_id = switch(builtin.os) {
165	// Os.linux => linux.CLOCK_MONOTONIC_RAW,
166	// else => posix.CLOCK_MONOTONIC,
167	//};
168	const monotonic_clock_id = posix.CLOCK_MONOTONIC;
169	/// Initialize the timer structure.
170	//This gives us an opportunity to grab the counter frequency in windows.
171	//On Windows: QueryPerformanceCounter will succeed on anything >= XP/2000.
172	//On Posix: CLOCK_MONOTONIC will only fail if the monotonic counter is not
173	// supported, or if the timespec pointer is out of bounds, which should be
174	// impossible here barring cosmic rays or other such occurrences of
175	// incredibly bad luck.
176	//On Darwin: This cannot fail, as far as I am able to tell.
177	const TimerError = error{
178	TimerUnsupported,
179	Unexpected,
180	};
181	pub fn start() TimerError!Timer {
182	var self: Timer = undefined;
183
184	switch (builtin.os) {
185	Os.windows => {
186	var freq: i64 = undefined;
187	var err = windows.QueryPerformanceFrequency(&freq);
188	if (err == windows.FALSE) return error.TimerUnsupported;
189	self.frequency = @intCast(u64, freq);
190	self.resolution = @divFloor(ns_per_s, self.frequency);
191
192	var start_time: i64 = undefined;
193	err = windows.QueryPerformanceCounter(&start_time);
194	debug.assert(err != windows.FALSE);
195	self.start_time = @intCast(u64, start_time);
196	},
197	Os.linux, Os.freebsd, Os.netbsd => {
198	//On Linux, seccomp can do arbitrary things to our ability to call
199	// syscalls, including return any errno value it wants and
200	// inconsistently throwing errors. Since we can't account for
201	// abuses of seccomp in a reasonable way, we'll assume that if
202	// seccomp is going to block us it will at least do so consistently
203	var ts: posix.timespec = undefined;
204	var result = posix.clock_getres(monotonic_clock_id, &ts);
205	var errno = posix.getErrno(result);
206	switch (errno) {
207	0 => {},
208	posix.EINVAL => return error.TimerUnsupported,
209	else => return std.os.unexpectedErrorPosix(errno),
210	}
211	self.resolution = @intCast(u64, ts.tv_sec) * u64(ns_per_s) + @intCast(u64, ts.tv_nsec);
212
213	result = posix.clock_gettime(monotonic_clock_id, &ts);
214	errno = posix.getErrno(result);
215	if (errno != 0) return std.os.unexpectedErrorPosix(errno);
216	self.start_time = @intCast(u64, ts.tv_sec) * u64(ns_per_s) + @intCast(u64, ts.tv_nsec);
217	},
218	Os.macosx, Os.ios => {
219	darwin.mach_timebase_info(&self.frequency);
220	self.resolution = @divFloor(self.frequency.numer, self.frequency.denom);
221	self.start_time = darwin.mach_absolute_time();
222	},
223	else => @compileError("Unsupported OS"),
224	}
225	return self;
226	}
227
228	/// Reads the timer value since start or the last reset in nanoseconds
229	pub fn read(self: *Timer) u64 {
230	var clock = clockNative() - self.start_time;
231	return switch (builtin.os) {
232	Os.windows => @divFloor(clock * ns_per_s, self.frequency),
233	Os.linux, Os.freebsd, Os.netbsd => clock,
234	Os.macosx, Os.ios => @divFloor(clock * self.frequency.numer, self.frequency.denom),
235	else => @compileError("Unsupported OS"),
236	};
237	}
238
239	/// Resets the timer value to 0/now.
240	pub fn reset(self: *Timer) void {
241	self.start_time = clockNative();
242	}
243
244	/// Returns the current value of the timer in nanoseconds, then resets it
245	pub fn lap(self: *Timer) u64 {
246	var now = clockNative();
247	var lap_time = self.read();
248	self.start_time = now;
249	return lap_time;
250	}
251
252	const clockNative = switch (builtin.os) {
253	Os.windows => clockWindows,
254	Os.linux, Os.freebsd, Os.netbsd => clockLinux,
255	Os.macosx, Os.ios => clockDarwin,
256	else => @compileError("Unsupported OS"),
257	};
258
259	fn clockWindows() u64 {
260	var result: i64 = undefined;
261	var err = windows.QueryPerformanceCounter(&result);
262	debug.assert(err != windows.FALSE);
263	return @intCast(u64, result);
264	}
265
266	fn clockDarwin() u64 {
267	return darwin.mach_absolute_time();
268	}
269
270	fn clockLinux() u64 {
271	var ts: posix.timespec = undefined;
272	var result = posix.clock_gettime(monotonic_clock_id, &ts);
273	debug.assert(posix.getErrno(result) == 0);
274	return @intCast(u64, ts.tv_sec) * u64(ns_per_s) + @intCast(u64, ts.tv_nsec);
275	}
276	};
277
278	test "os.time.sleep" {
279	sleep(1);
280	}
281
282	test "os.time.timestamp" {
283	const ns_per_ms = (ns_per_s / ms_per_s);
284	const margin = 50;
285
286	const time_0 = milliTimestamp();
287	sleep(ns_per_ms);
288	const time_1 = milliTimestamp();
289	const interval = time_1 - time_0;
290	testing.expect(interval > 0 and interval < margin);
291	}
292
293	test "os.time.Timer" {
294	const ns_per_ms = (ns_per_s / ms_per_s);
295	const margin = ns_per_ms * 150;
296
297	var timer = try Timer.start();
298	sleep(10 * ns_per_ms);
299	const time_0 = timer.read();
300	testing.expect(time_0 > 0 and time_0 < margin);
301
302	const time_1 = timer.lap();
303	testing.expect(time_1 >= time_0);
304
305	timer.reset();
306	testing.expect(timer.read() < time_1);
307	}

std/os/wasi.zig+71-33

...	@@ -1,42 +1,80 @@	...	@@ -1,42 +1,80 @@
1	pub use @import("wasi/core.zig");	1	// Based on https://github.com/CraneStation/wasi-sysroot/blob/wasi/libc-bottom-half/headers/public/wasi/core.h
		2	// and https://github.com/WebAssembly/WASI/blob/master/design/WASI-core.md
		3	const builtin = @import("builtin");
		4	const std = @import("std");
		5	const assert = std.debug.assert;
2		6
3	pub const STDIN_FILENO = 0;	7	pub const is_the_target = builtin.os == .wasi;
4	pub const STDOUT_FILENO = 1;	8	pub use @import("bits.zig");
5	pub const STDERR_FILENO = 2;
6		9
7	pub fn getErrno(r: usize) usize {	10	comptime {
8	const signed_r = @bitCast(isize, r);	11	assert(@alignOf(i8) == 1);
9	return if (signed_r > -4096 and signed_r < 0) @intCast(usize, -signed_r) else 0;	12	assert(@alignOf(u8) == 1);
		13	assert(@alignOf(i16) == 2);
		14	assert(@alignOf(u16) == 2);
		15	assert(@alignOf(i32) == 4);
		16	assert(@alignOf(u32) == 4);
		17	assert(@alignOf(i64) == 8);
		18	assert(@alignOf(u64) == 8);
10	}	19	}
11		20
12	pub fn write(fd: i32, buf: [*]const u8, count: usize) usize {	21	pub const iovec_t = iovec;
13	var nwritten: usize = undefined;	22	pub const ciovec_t = iovec_const;
14		23
15	const ciovs = ciovec_t{	24	pub extern "wasi_unstable" fn args_get(argv: [][]u8, argv_buf: [*]u8) errno_t;
16	.buf = buf,	25	pub extern "wasi_unstable" fn args_sizes_get(argc: usize, argv_buf_size: usize) errno_t;
17	.buf_len = count,
18	};
19		26
20	const err = fd_write(@bitCast(fd_t, isize(fd)), &ciovs, 1, &nwritten);	27	pub extern "wasi_unstable" fn clock_res_get(clock_id: clockid_t, resolution: *timestamp_t) errno_t;
21	if (err == ESUCCESS) {	28	pub extern "wasi_unstable" fn clock_time_get(clock_id: clockid_t, precision: timestamp_t, timestamp: *timestamp_t) errno_t;
22	return nwritten;
23	} else {
24	return @bitCast(usize, -isize(err));
25	}
26	}
27		29
28	pub fn read(fd: i32, buf: [*]u8, nbyte: usize) usize {	30	pub extern "wasi_unstable" fn environ_get(environ: []?[]u8, environ_buf: [*]u8) errno_t;
29	var nread: usize = undefined;	31	pub extern "wasi_unstable" fn environ_sizes_get(environ_count: usize, environ_buf_size: usize) errno_t;
30		32
31	const iovs = iovec_t{	33	pub extern "wasi_unstable" fn fd_advise(fd: fd_t, offset: filesize_t, len: filesize_t, advice: advice_t) errno_t;
32	.buf = buf,	34	pub extern "wasi_unstable" fn fd_allocate(fd: fd_t, offset: filesize_t, len: filesize_t) errno_t;
33	.buf_len = nbyte,	35	pub extern "wasi_unstable" fn fd_close(fd: fd_t) errno_t;
34	};	36	pub extern "wasi_unstable" fn fd_datasync(fd: fd_t) errno_t;
		37	pub extern "wasi_unstable" fn fd_pread(fd: fd_t, iovs: []const iovec_t, iovs_len: usize, offset: filesize_t, nread: usize) errno_t;
		38	pub extern "wasi_unstable" fn fd_pwrite(fd: fd_t, iovs: []const ciovec_t, iovs_len: usize, offset: filesize_t, nwritten: usize) errno_t;
		39	pub extern "wasi_unstable" fn fd_read(fd: fd_t, iovs: []const iovec_t, iovs_len: usize, nread: usize) errno_t;
		40	pub extern "wasi_unstable" fn fd_readdir(fd: fd_t, buf: []u8, buf_len: usize, cookie: dircookie_t, bufused: usize) errno_t;
		41	pub extern "wasi_unstable" fn fd_renumber(from: fd_t, to: fd_t) errno_t;
		42	pub extern "wasi_unstable" fn fd_seek(fd: fd_t, offset: filedelta_t, whence: whence_t, newoffset: *filesize_t) errno_t;
		43	pub extern "wasi_unstable" fn fd_sync(fd: fd_t) errno_t;
		44	pub extern "wasi_unstable" fn fd_tell(fd: fd_t, newoffset: *filesize_t) errno_t;
		45	pub extern "wasi_unstable" fn fd_write(fd: fd_t, iovs: []const ciovec_t, iovs_len: usize, nwritten: usize) errno_t;
35		46
36	const err = fd_read(@bitCast(fd_t, isize(fd)), &iovs, 1, &nread);	47	pub extern "wasi_unstable" fn fd_fdstat_get(fd: fd_t, buf: *fdstat_t) errno_t;
37	if (err == ESUCCESS) {	48	pub extern "wasi_unstable" fn fd_fdstat_set_flags(fd: fd_t, flags: fdflags_t) errno_t;
38	return nread;	49	pub extern "wasi_unstable" fn fd_fdstat_set_rights(fd: fd_t, fs_rights_base: rights_t, fs_rights_inheriting: rights_t) errno_t;
39	} else {	50
40	return @bitCast(usize, -isize(err));	51	pub extern "wasi_unstable" fn fd_filestat_get(fd: fd_t, buf: *filestat_t) errno_t;
41	}	52	pub extern "wasi_unstable" fn fd_filestat_set_size(fd: fd_t, st_size: filesize_t) errno_t;
42	}	53	pub extern "wasi_unstable" fn fd_filestat_set_times(fd: fd_t, st_atim: timestamp_t, st_mtim: timestamp_t, fstflags: fstflags_t) errno_t;
		54
		55	pub extern "wasi_unstable" fn fd_prestat_get(fd: fd_t, buf: *prestat_t) errno_t;
		56	pub extern "wasi_unstable" fn fd_prestat_dir_name(fd: fd_t, path: [*]u8, path_len: usize) errno_t;
		57
		58	pub extern "wasi_unstable" fn path_create_directory(fd: fd_t, path: [*]const u8, path_len: usize) errno_t;
		59	pub extern "wasi_unstable" fn path_filestat_get(fd: fd_t, flags: lookupflags_t, path: []const u8, path_len: usize, buf: filestat_t) errno_t;
		60	pub extern "wasi_unstable" fn path_filestat_set_times(fd: fd_t, flags: lookupflags_t, path: [*]const u8, path_len: usize, st_atim: timestamp_t, st_mtim: timestamp_t, fstflags: fstflags_t) errno_t;
		61	pub extern "wasi_unstable" fn path_link(old_fd: fd_t, old_flags: lookupflags_t, old_path: []const u8, old_path_len: usize, new_fd: fd_t, new_path: []const u8, new_path_len: usize) errno_t;
		62	pub extern "wasi_unstable" fn path_open(dirfd: fd_t, dirflags: lookupflags_t, path: []const u8, path_len: usize, oflags: oflags_t, fs_rights_base: rights_t, fs_rights_inheriting: rights_t, fs_flags: fdflags_t, fd: fd_t) errno_t;
		63	pub extern "wasi_unstable" fn path_readlink(fd: fd_t, path: []const u8, path_len: usize, buf: []u8, buf_len: usize, bufused: *usize) errno_t;
		64	pub extern "wasi_unstable" fn path_remove_directory(fd: fd_t, path: [*]const u8, path_len: usize) errno_t;
		65	pub extern "wasi_unstable" fn path_rename(old_fd: fd_t, old_path: []const u8, old_path_len: usize, new_fd: fd_t, new_path: []const u8, new_path_len: usize) errno_t;
		66	pub extern "wasi_unstable" fn path_symlink(old_path: []const u8, old_path_len: usize, fd: fd_t, new_path: []const u8, new_path_len: usize) errno_t;
		67	pub extern "wasi_unstable" fn path_unlink_file(fd: fd_t, path: [*]const u8, path_len: usize) errno_t;
		68
		69	pub extern "wasi_unstable" fn poll_oneoff(in: const subscription_t, out: event_t, nsubscriptions: usize, nevents: *usize) errno_t;
		70
		71	pub extern "wasi_unstable" fn proc_exit(rval: exitcode_t) noreturn;
		72	pub extern "wasi_unstable" fn proc_raise(sig: signal_t) errno_t;
		73
		74	pub extern "wasi_unstable" fn random_get(buf: [*]u8, buf_len: usize) errno_t;
		75
		76	pub extern "wasi_unstable" fn sched_yield() errno_t;
		77
		78	pub extern "wasi_unstable" fn sock_recv(sock: fd_t, ri_data: const iovec_t, ri_data_len: usize, ri_flags: riflags_t, ro_datalen: usize, ro_flags: *roflags_t) errno_t;
		79	pub extern "wasi_unstable" fn sock_send(sock: fd_t, si_data: const ciovec_t, si_data_len: usize, si_flags: siflags_t, so_datalen: usize) errno_t;
		80	pub extern "wasi_unstable" fn sock_shutdown(sock: fd_t, how: sdflags_t) errno_t;

std/os/wasi/core.zig deleted-374

...	@@ -1,374 +0,0 @@
1	// Based on https://github.com/CraneStation/wasi-sysroot/blob/wasi/libc-bottom-half/headers/public/wasi/core.h
2	// and https://github.com/WebAssembly/WASI/blob/master/design/WASI-core.md
3
4	pub const advice_t = u8;
5	pub const ADVICE_NORMAL: advice_t = 0;
6	pub const ADVICE_SEQUENTIAL: advice_t = 1;
7	pub const ADVICE_RANDOM: advice_t = 2;
8	pub const ADVICE_WILLNEED: advice_t = 3;
9	pub const ADVICE_DONTNEED: advice_t = 4;
10	pub const ADVICE_NOREUSE: advice_t = 5;
11
12	pub const ciovec_t = extern struct {
13	buf: [*]const u8,
14	buf_len: usize,
15	};
16
17	pub const clockid_t = u32;
18	pub const CLOCK_REALTIME: clockid_t = 0;
19	pub const CLOCK_MONOTONIC: clockid_t = 1;
20	pub const CLOCK_PROCESS_CPUTIME_ID: clockid_t = 2;
21	pub const CLOCK_THREAD_CPUTIME_ID: clockid_t = 3;
22
23	pub const device_t = u64;
24
25	pub const dircookie_t = u64;
26	pub const DIRCOOKIE_START: dircookie_t = 0;
27
28	pub const dirent_t = extern struct {
29	d_next: dircookie_t,
30	d_ino: inode_t,
31	d_namlen: u32,
32	d_type: filetype_t,
33	};
34
35	pub const errno_t = u16;
36	pub const ESUCCESS: errno_t = 0;
37	pub const E2BIG: errno_t = 1;
38	pub const EACCES: errno_t = 2;
39	pub const EADDRINUSE: errno_t = 3;
40	pub const EADDRNOTAVAIL: errno_t = 4;
41	pub const EAFNOSUPPORT: errno_t = 5;
42	pub const EAGAIN: errno_t = 6;
43	pub const EALREADY: errno_t = 7;
44	pub const EBADF: errno_t = 8;
45	pub const EBADMSG: errno_t = 9;
46	pub const EBUSY: errno_t = 10;
47	pub const ECANCELED: errno_t = 11;
48	pub const ECHILD: errno_t = 12;
49	pub const ECONNABORTED: errno_t = 13;
50	pub const ECONNREFUSED: errno_t = 14;
51	pub const ECONNRESET: errno_t = 15;
52	pub const EDEADLK: errno_t = 16;
53	pub const EDESTADDRREQ: errno_t = 17;
54	pub const EDOM: errno_t = 18;
55	pub const EDQUOT: errno_t = 19;
56	pub const EEXIST: errno_t = 20;
57	pub const EFAULT: errno_t = 21;
58	pub const EFBIG: errno_t = 22;
59	pub const EHOSTUNREACH: errno_t = 23;
60	pub const EIDRM: errno_t = 24;
61	pub const EILSEQ: errno_t = 25;
62	pub const EINPROGRESS: errno_t = 26;
63	pub const EINTR: errno_t = 27;
64	pub const EINVAL: errno_t = 28;
65	pub const EIO: errno_t = 29;
66	pub const EISCONN: errno_t = 30;
67	pub const EISDIR: errno_t = 31;
68	pub const ELOOP: errno_t = 32;
69	pub const EMFILE: errno_t = 33;
70	pub const EMLINK: errno_t = 34;
71	pub const EMSGSIZE: errno_t = 35;
72	pub const EMULTIHOP: errno_t = 36;
73	pub const ENAMETOOLONG: errno_t = 37;
74	pub const ENETDOWN: errno_t = 38;
75	pub const ENETRESET: errno_t = 39;
76	pub const ENETUNREACH: errno_t = 40;
77	pub const ENFILE: errno_t = 41;
78	pub const ENOBUFS: errno_t = 42;
79	pub const ENODEV: errno_t = 43;
80	pub const ENOENT: errno_t = 44;
81	pub const ENOEXEC: errno_t = 45;
82	pub const ENOLCK: errno_t = 46;
83	pub const ENOLINK: errno_t = 47;
84	pub const ENOMEM: errno_t = 48;
85	pub const ENOMSG: errno_t = 49;
86	pub const ENOPROTOOPT: errno_t = 50;
87	pub const ENOSPC: errno_t = 51;
88	pub const ENOSYS: errno_t = 52;
89	pub const ENOTCONN: errno_t = 53;
90	pub const ENOTDIR: errno_t = 54;
91	pub const ENOTEMPTY: errno_t = 55;
92	pub const ENOTRECOVERABLE: errno_t = 56;
93	pub const ENOTSOCK: errno_t = 57;
94	pub const ENOTSUP: errno_t = 58;
95	pub const ENOTTY: errno_t = 59;
96	pub const ENXIO: errno_t = 60;
97	pub const EOVERFLOW: errno_t = 61;
98	pub const EOWNERDEAD: errno_t = 62;
99	pub const EPERM: errno_t = 63;
100	pub const EPIPE: errno_t = 64;
101	pub const EPROTO: errno_t = 65;
102	pub const EPROTONOSUPPORT: errno_t = 66;
103	pub const EPROTOTYPE: errno_t = 67;
104	pub const ERANGE: errno_t = 68;
105	pub const EROFS: errno_t = 69;
106	pub const ESPIPE: errno_t = 70;
107	pub const ESRCH: errno_t = 71;
108	pub const ESTALE: errno_t = 72;
109	pub const ETIMEDOUT: errno_t = 73;
110	pub const ETXTBSY: errno_t = 74;
111	pub const EXDEV: errno_t = 75;
112	pub const ENOTCAPABLE: errno_t = 76;
113
114	pub const event_t = extern struct {
115	userdata: userdata_t,
116	@"error": errno_t,
117	@"type": eventtype_t,
118	u: extern union {
119	fd_readwrite: extern struct {
120	nbytes: filesize_t,
121	flags: eventrwflags_t,
122	},
123	},
124	};
125
126	pub const eventrwflags_t = u16;
127	pub const EVENT_FD_READWRITE_HANGUP: eventrwflags_t = 0x0001;
128
129	pub const eventtype_t = u8;
130	pub const EVENTTYPE_CLOCK: eventtype_t = 0;
131	pub const EVENTTYPE_FD_READ: eventtype_t = 1;
132	pub const EVENTTYPE_FD_WRITE: eventtype_t = 2;
133
134	pub const exitcode_t = u32;
135
136	pub const fd_t = u32;
137
138	pub const fdflags_t = u16;
139	pub const FDFLAG_APPEND: fdflags_t = 0x0001;
140	pub const FDFLAG_DSYNC: fdflags_t = 0x0002;
141	pub const FDFLAG_NONBLOCK: fdflags_t = 0x0004;
142	pub const FDFLAG_RSYNC: fdflags_t = 0x0008;
143	pub const FDFLAG_SYNC: fdflags_t = 0x0010;
144
145	const fdstat_t = extern struct {
146	fs_filetype: filetype_t,
147	fs_flags: fdflags_t,
148	fs_rights_base: rights_t,
149	fs_rights_inheriting: rights_t,
150	};
151
152	pub const filedelta_t = i64;
153
154	pub const filesize_t = u64;
155
156	pub const filestat_t = extern struct {
157	st_dev: device_t,
158	st_ino: inode_t,
159	st_filetype: filetype_t,
160	st_nlink: linkcount_t,
161	st_size: filesize_t,
162	st_atim: timestamp_t,
163	st_mtim: timestamp_t,
164	st_ctim: timestamp_t,
165	};
166
167	pub const filetype_t = u8;
168	pub const FILETYPE_UNKNOWN: filetype_t = 0;
169	pub const FILETYPE_BLOCK_DEVICE: filetype_t = 1;
170	pub const FILETYPE_CHARACTER_DEVICE: filetype_t = 2;
171	pub const FILETYPE_DIRECTORY: filetype_t = 3;
172	pub const FILETYPE_REGULAR_FILE: filetype_t = 4;
173	pub const FILETYPE_SOCKET_DGRAM: filetype_t = 5;
174	pub const FILETYPE_SOCKET_STREAM: filetype_t = 6;
175	pub const FILETYPE_SYMBOLIC_LINK: filetype_t = 7;
176
177	pub const fstflags_t = u16;
178	pub const FILESTAT_SET_ATIM: fstflags_t = 0x0001;
179	pub const FILESTAT_SET_ATIM_NOW: fstflags_t = 0x0002;
180	pub const FILESTAT_SET_MTIM: fstflags_t = 0x0004;
181	pub const FILESTAT_SET_MTIM_NOW: fstflags_t = 0x0008;
182
183	pub const inode_t = u64;
184
185	pub const iovec_t = extern struct {
186	buf: [*]u8,
187	buf_len: usize,
188	};
189
190	pub const linkcount_t = u32;
191
192	pub const lookupflags_t = u32;
193	pub const LOOKUP_SYMLINK_FOLLOW: lookupflags_t = 0x00000001;
194
195	pub const oflags_t = u16;
196	pub const O_CREAT: oflags_t = 0x0001;
197	pub const O_DIRECTORY: oflags_t = 0x0002;
198	pub const O_EXCL: oflags_t = 0x0004;
199	pub const O_TRUNC: oflags_t = 0x0008;
200
201	pub const preopentype_t = u8;
202	pub const PREOPENTYPE_DIR: preopentype_t = 0;
203
204	pub const prestat_t = extern struct {
205	pr_type: preopentype_t,
206	u: extern union {
207	dir: extern struct {
208	pr_name_len: usize,
209	},
210	},
211	};
212
213	pub const riflags_t = u16;
214	pub const SOCK_RECV_PEEK: riflags_t = 0x0001;
215	pub const SOCK_RECV_WAITALL: riflags_t = 0x0002;
216
217	pub const rights_t = u64;
218	pub const RIGHT_FD_DATASYNC: rights_t = 0x0000000000000001;
219	pub const RIGHT_FD_READ: rights_t = 0x0000000000000002;
220	pub const RIGHT_FD_SEEK: rights_t = 0x0000000000000004;
221	pub const RIGHT_FD_FDSTAT_SET_FLAGS: rights_t = 0x0000000000000008;
222	pub const RIGHT_FD_SYNC: rights_t = 0x0000000000000010;
223	pub const RIGHT_FD_TELL: rights_t = 0x0000000000000020;
224	pub const RIGHT_FD_WRITE: rights_t = 0x0000000000000040;
225	pub const RIGHT_FD_ADVISE: rights_t = 0x0000000000000080;
226	pub const RIGHT_FD_ALLOCATE: rights_t = 0x0000000000000100;
227	pub const RIGHT_PATH_CREATE_DIRECTORY: rights_t = 0x0000000000000200;
228	pub const RIGHT_PATH_CREATE_FILE: rights_t = 0x0000000000000400;
229	pub const RIGHT_PATH_LINK_SOURCE: rights_t = 0x0000000000000800;
230	pub const RIGHT_PATH_LINK_TARGET: rights_t = 0x0000000000001000;
231	pub const RIGHT_PATH_OPEN: rights_t = 0x0000000000002000;
232	pub const RIGHT_FD_READDIR: rights_t = 0x0000000000004000;
233	pub const RIGHT_PATH_READLINK: rights_t = 0x0000000000008000;
234	pub const RIGHT_PATH_RENAME_SOURCE: rights_t = 0x0000000000010000;
235	pub const RIGHT_PATH_RENAME_TARGET: rights_t = 0x0000000000020000;
236	pub const RIGHT_PATH_FILESTAT_GET: rights_t = 0x0000000000040000;
237	pub const RIGHT_PATH_FILESTAT_SET_SIZE: rights_t = 0x0000000000080000;
238	pub const RIGHT_PATH_FILESTAT_SET_TIMES: rights_t = 0x0000000000100000;
239	pub const RIGHT_FD_FILESTAT_GET: rights_t = 0x0000000000200000;
240	pub const RIGHT_FD_FILESTAT_SET_SIZE: rights_t = 0x0000000000400000;
241	pub const RIGHT_FD_FILESTAT_SET_TIMES: rights_t = 0x0000000000800000;
242	pub const RIGHT_PATH_SYMLINK: rights_t = 0x0000000001000000;
243	pub const RIGHT_PATH_REMOVE_DIRECTORY: rights_t = 0x0000000002000000;
244	pub const RIGHT_PATH_UNLINK_FILE: rights_t = 0x0000000004000000;
245	pub const RIGHT_POLL_FD_READWRITE: rights_t = 0x0000000008000000;
246	pub const RIGHT_SOCK_SHUTDOWN: rights_t = 0x0000000010000000;
247
248	pub const roflags_t = u16;
249	pub const SOCK_RECV_DATA_TRUNCATED: roflags_t = 0x0001;
250
251	pub const sdflags_t = u8;
252	pub const SHUT_RD: sdflags_t = 0x01;
253	pub const SHUT_WR: sdflags_t = 0x02;
254
255	pub const siflags_t = u16;
256
257	pub const signal_t = u8;
258	pub const SIGHUP: signal_t = 1;
259	pub const SIGINT: signal_t = 2;
260	pub const SIGQUIT: signal_t = 3;
261	pub const SIGILL: signal_t = 4;
262	pub const SIGTRAP: signal_t = 5;
263	pub const SIGABRT: signal_t = 6;
264	pub const SIGBUS: signal_t = 7;
265	pub const SIGFPE: signal_t = 8;
266	pub const SIGKILL: signal_t = 9;
267	pub const SIGUSR1: signal_t = 10;
268	pub const SIGSEGV: signal_t = 11;
269	pub const SIGUSR2: signal_t = 12;
270	pub const SIGPIPE: signal_t = 13;
271	pub const SIGALRM: signal_t = 14;
272	pub const SIGTERM: signal_t = 15;
273	pub const SIGCHLD: signal_t = 16;
274	pub const SIGCONT: signal_t = 17;
275	pub const SIGSTOP: signal_t = 18;
276	pub const SIGTSTP: signal_t = 19;
277	pub const SIGTTIN: signal_t = 20;
278	pub const SIGTTOU: signal_t = 21;
279	pub const SIGURG: signal_t = 22;
280	pub const SIGXCPU: signal_t = 23;
281	pub const SIGXFSZ: signal_t = 24;
282	pub const SIGVTALRM: signal_t = 25;
283	pub const SIGPROF: signal_t = 26;
284	pub const SIGWINCH: signal_t = 27;
285	pub const SIGPOLL: signal_t = 28;
286	pub const SIGPWR: signal_t = 29;
287	pub const SIGSYS: signal_t = 30;
288
289	pub const subclockflags_t = u16;
290	pub const SUBSCRIPTION_CLOCK_ABSTIME: subclockflags_t = 0x0001;
291
292	pub const subscription_t = extern struct {
293	userdata: userdata_t,
294	@"type": eventtype_t,
295	u: extern union {
296	clock: extern struct {
297	identifier: userdata_t,
298	clock_id: clockid_t,
299	timeout: timestamp_t,
300	precision: timestamp_t,
301	flags: subclockflags_t,
302	},
303	fd_readwrite: extern struct {
304	fd: fd_t,
305	},
306	},
307	};
308
309	pub const timestamp_t = u64;
310
311	pub const userdata_t = u64;
312
313	pub const whence_t = u8;
314	pub const WHENCE_CUR: whence_t = 0;
315	pub const WHENCE_END: whence_t = 1;
316	pub const WHENCE_SET: whence_t = 2;
317
318	pub extern "wasi_unstable" fn args_get(argv: [][]u8, argv_buf: [*]u8) errno_t;
319	pub extern "wasi_unstable" fn args_sizes_get(argc: usize, argv_buf_size: usize) errno_t;
320
321	pub extern "wasi_unstable" fn clock_res_get(clock_id: clockid_t, resolution: *timestamp_t) errno_t;
322	pub extern "wasi_unstable" fn clock_time_get(clock_id: clockid_t, precision: timestamp_t, timestamp: *timestamp_t) errno_t;
323
324	pub extern "wasi_unstable" fn environ_get(environ: []?[]u8, environ_buf: [*]u8) errno_t;
325	pub extern "wasi_unstable" fn environ_sizes_get(environ_count: usize, environ_buf_size: usize) errno_t;
326
327	pub extern "wasi_unstable" fn fd_advise(fd: fd_t, offset: filesize_t, len: filesize_t, advice: advice_t) errno_t;
328	pub extern "wasi_unstable" fn fd_allocate(fd: fd_t, offset: filesize_t, len: filesize_t) errno_t;
329	pub extern "wasi_unstable" fn fd_close(fd: fd_t) errno_t;
330	pub extern "wasi_unstable" fn fd_datasync(fd: fd_t) errno_t;
331	pub extern "wasi_unstable" fn fd_pread(fd: fd_t, iovs: const iovec_t, iovs_len: usize, offset: filesize_t, nread: usize) errno_t;
332	pub extern "wasi_unstable" fn fd_pwrite(fd: fd_t, iovs: const ciovec_t, iovs_len: usize, offset: filesize_t, nwritten: usize) errno_t;
333	pub extern "wasi_unstable" fn fd_read(fd: fd_t, iovs: const iovec_t, iovs_len: usize, nread: usize) errno_t;
334	pub extern "wasi_unstable" fn fd_readdir(fd: fd_t, buf: []u8, buf_len: usize, cookie: dircookie_t, bufused: usize) errno_t;
335	pub extern "wasi_unstable" fn fd_renumber(from: fd_t, to: fd_t) errno_t;
336	pub extern "wasi_unstable" fn fd_seek(fd: fd_t, offset: filedelta_t, whence: whence_t, newoffset: *filesize_t) errno_t;
337	pub extern "wasi_unstable" fn fd_sync(fd: fd_t) errno_t;
338	pub extern "wasi_unstable" fn fd_tell(fd: fd_t, newoffset: *filesize_t) errno_t;
339	pub extern "wasi_unstable" fn fd_write(fd: fd_t, iovs: const ciovec_t, iovs_len: usize, nwritten: usize) errno_t;
340
341	pub extern "wasi_unstable" fn fd_fdstat_get(fd: fd_t, buf: *fdstat_t) errno_t;
342	pub extern "wasi_unstable" fn fd_fdstat_set_flags(fd: fd_t, flags: fdflags_t) errno_t;
343	pub extern "wasi_unstable" fn fd_fdstat_set_rights(fd: fd_t, fs_rights_base: rights_t, fs_rights_inheriting: rights_t) errno_t;
344
345	pub extern "wasi_unstable" fn fd_filestat_get(fd: fd_t, buf: *filestat_t) errno_t;
346	pub extern "wasi_unstable" fn fd_filestat_set_size(fd: fd_t, st_size: filesize_t) errno_t;
347	pub extern "wasi_unstable" fn fd_filestat_set_times(fd: fd_t, st_atim: timestamp_t, st_mtim: timestamp_t, fstflags: fstflags_t) errno_t;
348
349	pub extern "wasi_unstable" fn fd_prestat_get(fd: fd_t, buf: *prestat_t) errno_t;
350	pub extern "wasi_unstable" fn fd_prestat_dir_name(fd: fd_t, path: [*]u8, path_len: usize) errno_t;
351
352	pub extern "wasi_unstable" fn path_create_directory(fd: fd_t, path: [*]const u8, path_len: usize) errno_t;
353	pub extern "wasi_unstable" fn path_filestat_get(fd: fd_t, flags: lookupflags_t, path: []const u8, path_len: usize, buf: filestat_t) errno_t;
354	pub extern "wasi_unstable" fn path_filestat_set_times(fd: fd_t, flags: lookupflags_t, path: [*]const u8, path_len: usize, st_atim: timestamp_t, st_mtim: timestamp_t, fstflags: fstflags_t) errno_t;
355	pub extern "wasi_unstable" fn path_link(old_fd: fd_t, old_flags: lookupflags_t, old_path: []const u8, old_path_len: usize, new_fd: fd_t, new_path: []const u8, new_path_len: usize) errno_t;
356	pub extern "wasi_unstable" fn path_open(dirfd: fd_t, dirflags: lookupflags_t, path: []const u8, path_len: usize, oflags: oflags_t, fs_rights_base: rights_t, fs_rights_inheriting: rights_t, fs_flags: fdflags_t, fd: fd_t) errno_t;
357	pub extern "wasi_unstable" fn path_readlink(fd: fd_t, path: []const u8, path_len: usize, buf: []u8, buf_len: usize, bufused: *usize) errno_t;
358	pub extern "wasi_unstable" fn path_remove_directory(fd: fd_t, path: [*]const u8, path_len: usize) errno_t;
359	pub extern "wasi_unstable" fn path_rename(old_fd: fd_t, old_path: []const u8, old_path_len: usize, new_fd: fd_t, new_path: []const u8, new_path_len: usize) errno_t;
360	pub extern "wasi_unstable" fn path_symlink(old_path: []const u8, old_path_len: usize, fd: fd_t, new_path: []const u8, new_path_len: usize) errno_t;
361	pub extern "wasi_unstable" fn path_unlink_file(fd: fd_t, path: [*]const u8, path_len: usize) errno_t;
362
363	pub extern "wasi_unstable" fn poll_oneoff(in: const subscription_t, out: event_t, nsubscriptions: usize, nevents: *usize) errno_t;
364
365	pub extern "wasi_unstable" fn proc_exit(rval: exitcode_t) noreturn;
366	pub extern "wasi_unstable" fn proc_raise(sig: signal_t) errno_t;
367
368	pub extern "wasi_unstable" fn random_get(buf: [*]u8, buf_len: usize) errno_t;
369
370	pub extern "wasi_unstable" fn sched_yield() errno_t;
371
372	pub extern "wasi_unstable" fn sock_recv(sock: fd_t, ri_data: const iovec_t, ri_data_len: usize, ri_flags: riflags_t, ro_datalen: usize, ro_flags: *roflags_t) errno_t;
373	pub extern "wasi_unstable" fn sock_send(sock: fd_t, si_data: const ciovec_t, si_data_len: usize, si_flags: siflags_t, so_datalen: usize) errno_t;
374	pub extern "wasi_unstable" fn sock_shutdown(sock: fd_t, how: sdflags_t) errno_t;

std/os/windows.zig+721-384

...	@@ -1,430 +1,767 @@	...	@@ -1,430 +1,767 @@
		1	// This file contains thin wrappers around Windows-specific APIs, with these
		2	// specific goals in mind:
		3	// * Convert "errno"-style error codes into Zig errors.
		4	// * When null-terminated or UTF16LE byte buffers are required, provide APIs which accept
		5	// slices as well as APIs which accept null-terminated UTF16LE byte buffers.
		6
		7	const builtin = @import("builtin");
1	const std = @import("../std.zig");	8	const std = @import("../std.zig");
		9	const mem = std.mem;
2	const assert = std.debug.assert;	10	const assert = std.debug.assert;
		11	const math = std.math;
3	const maxInt = std.math.maxInt;	12	const maxInt = std.math.maxInt;
4		13
5	pub use @import("windows/advapi32.zig");	14	pub const is_the_target = builtin.os == .windows;
6	pub use @import("windows/kernel32.zig");	15	pub const advapi32 = @import("windows/advapi32.zig");
7	pub use @import("windows/ntdll.zig");	16	pub const kernel32 = @import("windows/kernel32.zig");
8	pub use @import("windows/ole32.zig");	17	pub const ntdll = @import("windows/ntdll.zig");
9	pub use @import("windows/shell32.zig");	18	pub const ole32 = @import("windows/ole32.zig");
10		19	pub const shell32 = @import("windows/shell32.zig");
11	test "import" {	20
12	_ = @import("windows/util.zig");	21	pub use @import("windows/bits.zig");
13	}	22
14		23	pub const CreateFileError = error{
15	pub const ERROR = @import("windows/error.zig");	24	SharingViolation,
16		25	PathAlreadyExists,
17	pub const SHORT = c_short;	26
18	pub const BOOL = c_int;	27	/// When any of the path components can not be found or the file component can not
19	pub const BOOLEAN = BYTE;	28	/// be found. Some operating systems distinguish between path components not found and
20	pub const BYTE = u8;	29	/// file components not found, but they are collapsed into FileNotFound to gain
21	pub const CHAR = u8;	30	/// consistency across operating systems.
22	pub const DWORD = u32;	31	FileNotFound,
23	pub const FLOAT = f32;	32
24	pub const HANDLE = *c_void;	33	AccessDenied,
25	pub const HCRYPTPROV = ULONG_PTR;	34	PipeBusy,
26	pub const HINSTANCE = *@OpaqueType();	35	NameTooLong,
27	pub const HMODULE = *@OpaqueType();	36
28	pub const FARPROC = *@OpaqueType();	37	/// On Windows, file paths must be valid Unicode.
29	pub const INT = c_int;	38	InvalidUtf8,
30	pub const LPBYTE = *BYTE;	39
31	pub const LPCH = *CHAR;	40	/// On Windows, file paths cannot contain these characters:
32	pub const LPCSTR = [*]const CHAR;	41	/// '/', '*', '?', '"', '<', '>', '\|'
33	pub const LPCTSTR = [*]const TCHAR;	42	BadPathName,
34	pub const LPCVOID = *const c_void;	43
35	pub const LPDWORD = *DWORD;	44	Unexpected,
36	pub const LPSTR = [*]CHAR;
37	pub const LPTSTR = if (UNICODE) LPWSTR else LPSTR;
38	pub const LPVOID = *c_void;
39	pub const LPWSTR = [*]WCHAR;
40	pub const LPCWSTR = [*]const WCHAR;
41	pub const PVOID = *c_void;
42	pub const PWSTR = [*]WCHAR;
43	pub const SIZE_T = usize;
44	pub const TCHAR = if (UNICODE) WCHAR else u8;
45	pub const UINT = c_uint;
46	pub const ULONG_PTR = usize;
47	pub const DWORD_PTR = ULONG_PTR;
48	pub const UNICODE = false;
49	pub const WCHAR = u16;
50	pub const WORD = u16;
51	pub const LARGE_INTEGER = i64;
52	pub const ULONG = u32;
53	pub const LONG = i32;
54	pub const ULONGLONG = u64;
55	pub const LONGLONG = i64;
56
57	pub const TRUE = 1;
58	pub const FALSE = 0;
59
60	/// The standard input device. Initially, this is the console input buffer, CONIN$.
61	pub const STD_INPUT_HANDLE = maxInt(DWORD) - 10 + 1;
62
63	/// The standard output device. Initially, this is the active console screen buffer, CONOUT$.
64	pub const STD_OUTPUT_HANDLE = maxInt(DWORD) - 11 + 1;
65
66	/// The standard error device. Initially, this is the active console screen buffer, CONOUT$.
67	pub const STD_ERROR_HANDLE = maxInt(DWORD) - 12 + 1;
68
69	pub const INVALID_HANDLE_VALUE = @intToPtr(HANDLE, maxInt(usize));
70
71	pub const INVALID_FILE_ATTRIBUTES = DWORD(maxInt(DWORD));
72
73	pub const OVERLAPPED = extern struct {
74	Internal: ULONG_PTR,
75	InternalHigh: ULONG_PTR,
76	Offset: DWORD,
77	OffsetHigh: DWORD,
78	hEvent: ?HANDLE,
79	};
80	pub const LPOVERLAPPED = *OVERLAPPED;
81
82	pub const MAX_PATH = 260;
83
84	// TODO issue #305
85	pub const FILE_INFO_BY_HANDLE_CLASS = u32;
86	pub const FileBasicInfo = 0;
87	pub const FileStandardInfo = 1;
88	pub const FileNameInfo = 2;
89	pub const FileRenameInfo = 3;
90	pub const FileDispositionInfo = 4;
91	pub const FileAllocationInfo = 5;
92	pub const FileEndOfFileInfo = 6;
93	pub const FileStreamInfo = 7;
94	pub const FileCompressionInfo = 8;
95	pub const FileAttributeTagInfo = 9;
96	pub const FileIdBothDirectoryInfo = 10;
97	pub const FileIdBothDirectoryRestartInfo = 11;
98	pub const FileIoPriorityHintInfo = 12;
99	pub const FileRemoteProtocolInfo = 13;
100	pub const FileFullDirectoryInfo = 14;
101	pub const FileFullDirectoryRestartInfo = 15;
102	pub const FileStorageInfo = 16;
103	pub const FileAlignmentInfo = 17;
104	pub const FileIdInfo = 18;
105	pub const FileIdExtdDirectoryInfo = 19;
106	pub const FileIdExtdDirectoryRestartInfo = 20;
107
108	pub const FILE_NAME_INFO = extern struct {
109	FileNameLength: DWORD,
110	FileName: [1]WCHAR,
111	};	45	};
112		46
113	/// Return the normalized drive name. This is the default.	47	pub fn CreateFile(
114	pub const FILE_NAME_NORMALIZED = 0x0;	48	file_path: []const u8,
		49	desired_access: DWORD,
		50	share_mode: DWORD,
		51	lpSecurityAttributes: ?LPSECURITY_ATTRIBUTES,
		52	creation_disposition: DWORD,
		53	flags_and_attrs: DWORD,
		54	hTemplateFile: ?HANDLE,
		55	) CreateFileError!HANDLE {
		56	const file_path_w = try sliceToPrefixedFileW(file_path);
		57	return CreateFileW(&file_path_w, desired_access, share_mode, lpSecurityAttributes, creation_disposition, flags_and_attrs, hTemplateFile);
		58	}
		59
		60	pub fn CreateFileW(
		61	file_path_w: [*]const u16,
		62	desired_access: DWORD,
		63	share_mode: DWORD,
		64	lpSecurityAttributes: ?LPSECURITY_ATTRIBUTES,
		65	creation_disposition: DWORD,
		66	flags_and_attrs: DWORD,
		67	hTemplateFile: ?HANDLE,
		68	) CreateFileError!HANDLE {
		69	const result = kernel32.CreateFileW(file_path_w, desired_access, share_mode, lpSecurityAttributes, creation_disposition, flags_and_attrs, hTemplateFile);
		70
		71	if (result == INVALID_HANDLE_VALUE) {
		72	switch (kernel32.GetLastError()) {
		73	ERROR.SHARING_VIOLATION => return error.SharingViolation,
		74	ERROR.ALREADY_EXISTS => return error.PathAlreadyExists,
		75	ERROR.FILE_EXISTS => return error.PathAlreadyExists,
		76	ERROR.FILE_NOT_FOUND => return error.FileNotFound,
		77	ERROR.PATH_NOT_FOUND => return error.FileNotFound,
		78	ERROR.ACCESS_DENIED => return error.AccessDenied,
		79	ERROR.PIPE_BUSY => return error.PipeBusy,
		80	ERROR.FILENAME_EXCED_RANGE => return error.NameTooLong,
		81	else => \|err\| return unexpectedError(err),
		82	}
		83	}
		84
		85	return result;
		86	}
		87
		88	pub const CreatePipeError = error{Unexpected};
115		89
116	/// Return the opened file name (not normalized).	90	pub fn CreatePipe(rd: HANDLE, wr: HANDLE, sattr: *const SECURITY_ATTRIBUTES) CreatePipeError!void {
117	pub const FILE_NAME_OPENED = 0x8;	91	if (kernel32.CreatePipe(rd, wr, sattr, 0) == 0) {
		92	switch (kernel32.GetLastError()) {
		93	else => \|err\| return unexpectedError(err),
		94	}
		95	}
		96	}
118		97
119	/// Return the path with the drive letter. This is the default.	98	pub const SetHandleInformationError = error{Unexpected};
120	pub const VOLUME_NAME_DOS = 0x0;
121		99
122	/// Return the path with a volume GUID path instead of the drive name.	100	pub fn SetHandleInformation(h: HANDLE, mask: DWORD, flags: DWORD) SetHandleInformationError!void {
123	pub const VOLUME_NAME_GUID = 0x1;	101	if (kernel32.SetHandleInformation(h, mask, flags) == 0) {
		102	switch (kernel32.GetLastError()) {
		103	else => \|err\| return unexpectedError(err),
		104	}
		105	}
		106	}
124		107
125	/// Return the path with no drive information.	108	pub const RtlGenRandomError = error{Unexpected};
126	pub const VOLUME_NAME_NONE = 0x4;
127		109
128	/// Return the path with the volume device path.	110	/// Call RtlGenRandom() instead of CryptGetRandom() on Windows
129	pub const VOLUME_NAME_NT = 0x2;	111	/// https://github.com/rust-lang-nursery/rand/issues/111
		112	/// https://bugzilla.mozilla.org/show_bug.cgi?id=504270
		113	pub fn RtlGenRandom(output: []u8) RtlGenRandomError!void {
		114	if (advapi32.RtlGenRandom(output.ptr, output.len) == 0) {
		115	switch (kernel32.GetLastError()) {
		116	else => \|err\| return unexpectedError(err),
		117	}
		118	}
		119	}
130		120
131	pub const SECURITY_ATTRIBUTES = extern struct {	121	pub const WaitForSingleObjectError = error{
132	nLength: DWORD,	122	WaitAbandoned,
133	lpSecurityDescriptor: ?*c_void,	123	WaitTimeOut,
134	bInheritHandle: BOOL,	124	Unexpected,
135	};	125	};
136	pub const PSECURITY_ATTRIBUTES = *SECURITY_ATTRIBUTES;	126
137	pub const LPSECURITY_ATTRIBUTES = *SECURITY_ATTRIBUTES;	127	pub fn WaitForSingleObject(handle: HANDLE, milliseconds: DWORD) WaitForSingleObjectError!void {
138		128	switch (kernel32.WaitForSingleObject(handle, milliseconds)) {
139	pub const GENERIC_READ = 0x80000000;	129	WAIT_ABANDONED => return error.WaitAbandoned,
140	pub const GENERIC_WRITE = 0x40000000;	130	WAIT_OBJECT_0 => return,
141	pub const GENERIC_EXECUTE = 0x20000000;	131	WAIT_TIMEOUT => return error.WaitTimeOut,
142	pub const GENERIC_ALL = 0x10000000;	132	WAIT_FAILED => switch (kernel32.GetLastError()) {
143		133	else => \|err\| return unexpectedError(err),
144	pub const FILE_SHARE_DELETE = 0x00000004;	134	},
145	pub const FILE_SHARE_READ = 0x00000001;	135	else => return error.Unexpected,
146	pub const FILE_SHARE_WRITE = 0x00000002;	136	}
147		137	}
148	pub const CREATE_ALWAYS = 2;	138
149	pub const CREATE_NEW = 1;	139	pub const FindFirstFileError = error{
150	pub const OPEN_ALWAYS = 4;	140	FileNotFound,
151	pub const OPEN_EXISTING = 3;	141	InvalidUtf8,
152	pub const TRUNCATE_EXISTING = 5;	142	BadPathName,
153		143	NameTooLong,
154	pub const FILE_ATTRIBUTE_ARCHIVE = 0x20;	144	Unexpected,
155	pub const FILE_ATTRIBUTE_COMPRESSED = 0x800;
156	pub const FILE_ATTRIBUTE_DEVICE = 0x40;
157	pub const FILE_ATTRIBUTE_DIRECTORY = 0x10;
158	pub const FILE_ATTRIBUTE_ENCRYPTED = 0x4000;
159	pub const FILE_ATTRIBUTE_HIDDEN = 0x2;
160	pub const FILE_ATTRIBUTE_INTEGRITY_STREAM = 0x8000;
161	pub const FILE_ATTRIBUTE_NORMAL = 0x80;
162	pub const FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = 0x2000;
163	pub const FILE_ATTRIBUTE_NO_SCRUB_DATA = 0x20000;
164	pub const FILE_ATTRIBUTE_OFFLINE = 0x1000;
165	pub const FILE_ATTRIBUTE_READONLY = 0x1;
166	pub const FILE_ATTRIBUTE_RECALL_ON_DATA_ACCESS = 0x400000;
167	pub const FILE_ATTRIBUTE_RECALL_ON_OPEN = 0x40000;
168	pub const FILE_ATTRIBUTE_REPARSE_POINT = 0x400;
169	pub const FILE_ATTRIBUTE_SPARSE_FILE = 0x200;
170	pub const FILE_ATTRIBUTE_SYSTEM = 0x4;
171	pub const FILE_ATTRIBUTE_TEMPORARY = 0x100;
172	pub const FILE_ATTRIBUTE_VIRTUAL = 0x10000;
173
174	pub const PROCESS_INFORMATION = extern struct {
175	hProcess: HANDLE,
176	hThread: HANDLE,
177	dwProcessId: DWORD,
178	dwThreadId: DWORD,
179	};	145	};
180		146
181	pub const STARTUPINFOW = extern struct {	147	pub fn FindFirstFile(dir_path: []const u8, find_file_data: *WIN32_FIND_DATAW) FindFirstFileError!HANDLE {
182	cb: DWORD,	148	const dir_path_w = try sliceToPrefixedSuffixedFileW(dir_path, []u16{ '\\', '*', 0 });
183	lpReserved: ?LPWSTR,	149	const handle = kernel32.FindFirstFileW(&dir_path_w, find_file_data);
184	lpDesktop: ?LPWSTR,	150
185	lpTitle: ?LPWSTR,	151	if (handle == INVALID_HANDLE_VALUE) {
186	dwX: DWORD,	152	switch (kernel32.GetLastError()) {
187	dwY: DWORD,	153	ERROR.FILE_NOT_FOUND => return error.FileNotFound,
188	dwXSize: DWORD,	154	ERROR.PATH_NOT_FOUND => return error.FileNotFound,
189	dwYSize: DWORD,	155	else => \|err\| return unexpectedError(err),
190	dwXCountChars: DWORD,	156	}
191	dwYCountChars: DWORD,	157	}
192	dwFillAttribute: DWORD,	158
193	dwFlags: DWORD,	159	return handle;
194	wShowWindow: WORD,	160	}
195	cbReserved2: WORD,	161
196	lpReserved2: ?LPBYTE,	162	pub const FindNextFileError = error{Unexpected};
197	hStdInput: ?HANDLE,	163
198	hStdOutput: ?HANDLE,	164	/// Returns `true` if there was another file, `false` otherwise.
199	hStdError: ?HANDLE,	165	pub fn FindNextFile(handle: HANDLE, find_file_data: *WIN32_FIND_DATAW) FindNextFileError!bool {
		166	if (kernel32.FindNextFileW(handle, find_file_data) == 0) {
		167	switch (kernel32.GetLastError()) {
		168	ERROR.NO_MORE_FILES => return false,
		169	else => \|err\| return unexpectedError(err),
		170	}
		171	}
		172	return true;
		173	}
		174
		175	pub const CreateIoCompletionPortError = error{Unexpected};
		176
		177	pub fn CreateIoCompletionPort(
		178	file_handle: HANDLE,
		179	existing_completion_port: ?HANDLE,
		180	completion_key: usize,
		181	concurrent_thread_count: DWORD,
		182	) CreateIoCompletionPortError!HANDLE {
		183	const handle = kernel32.CreateIoCompletionPort(file_handle, existing_completion_port, completion_key, concurrent_thread_count) orelse {
		184	switch (kernel32.GetLastError()) {
		185	ERROR.INVALID_PARAMETER => unreachable,
		186	else => \|err\| return unexpectedError(err),
		187	}
		188	};
		189	return handle;
		190	}
		191
		192	pub const PostQueuedCompletionStatusError = error{Unexpected};
		193
		194	pub fn PostQueuedCompletionStatus(
		195	completion_port: HANDLE,
		196	bytes_transferred_count: DWORD,
		197	completion_key: usize,
		198	lpOverlapped: ?*OVERLAPPED,
		199	) PostQueuedCompletionStatusError!void {
		200	if (kernel32.PostQueuedCompletionStatus(completion_port, bytes_transferred_count, completion_key, lpOverlapped) == 0) {
		201	switch (kernel32.GetLastError()) {
		202	else => \|err\| return unexpectedError(err),
		203	}
		204	}
		205	}
		206
		207	pub const GetQueuedCompletionStatusResult = enum {
		208	Normal,
		209	Aborted,
		210	Cancelled,
		211	EOF,
200	};	212	};
201		213
202	pub const STARTF_FORCEONFEEDBACK = 0x00000040;	214	pub fn GetQueuedCompletionStatus(
203	pub const STARTF_FORCEOFFFEEDBACK = 0x00000080;	215	completion_port: HANDLE,
204	pub const STARTF_PREVENTPINNING = 0x00002000;	216	bytes_transferred_count: *DWORD,
205	pub const STARTF_RUNFULLSCREEN = 0x00000020;	217	lpCompletionKey: *usize,
206	pub const STARTF_TITLEISAPPID = 0x00001000;	218	lpOverlapped: ?OVERLAPPED,
207	pub const STARTF_TITLEISLINKNAME = 0x00000800;	219	dwMilliseconds: DWORD,
208	pub const STARTF_UNTRUSTEDSOURCE = 0x00008000;	220	) GetQueuedCompletionStatusResult {
209	pub const STARTF_USECOUNTCHARS = 0x00000008;	221	if (kernel32.GetQueuedCompletionStatus(
210	pub const STARTF_USEFILLATTRIBUTE = 0x00000010;	222	completion_port,
211	pub const STARTF_USEHOTKEY = 0x00000200;	223	bytes_transferred_count,
212	pub const STARTF_USEPOSITION = 0x00000004;	224	lpCompletionKey,
213	pub const STARTF_USESHOWWINDOW = 0x00000001;	225	lpOverlapped,
214	pub const STARTF_USESIZE = 0x00000002;	226	dwMilliseconds,
215	pub const STARTF_USESTDHANDLES = 0x00000100;	227	) == FALSE) {
216		228	switch (kernel32.GetLastError()) {
217	pub const INFINITE = 4294967295;	229	ERROR.ABANDONED_WAIT_0 => return GetQueuedCompletionStatusResult.Aborted,
218		230	ERROR.OPERATION_ABORTED => return GetQueuedCompletionStatusResult.Cancelled,
219	pub const WAIT_ABANDONED = 0x00000080;	231	ERROR.HANDLE_EOF => return GetQueuedCompletionStatusResult.EOF,
220	pub const WAIT_OBJECT_0 = 0x00000000;	232	else => \|err\| {
221	pub const WAIT_TIMEOUT = 0x00000102;	233	if (std.debug.runtime_safety) {
222	pub const WAIT_FAILED = 0xFFFFFFFF;	234	std.debug.panic("unexpected error: {}\n", err);
223		235	}
224	pub const HANDLE_FLAG_INHERIT = 0x00000001;	236	},
225	pub const HANDLE_FLAG_PROTECT_FROM_CLOSE = 0x00000002;	237	}
226		238	}
227	pub const MOVEFILE_COPY_ALLOWED = 2;	239	return GetQueuedCompletionStatusResult.Normal;
228	pub const MOVEFILE_CREATE_HARDLINK = 16;	240	}
229	pub const MOVEFILE_DELAY_UNTIL_REBOOT = 4;	241
230	pub const MOVEFILE_FAIL_IF_NOT_TRACKABLE = 32;	242	pub fn CloseHandle(hObject: HANDLE) void {
231	pub const MOVEFILE_REPLACE_EXISTING = 1;	243	assert(kernel32.CloseHandle(hObject) != 0);
232	pub const MOVEFILE_WRITE_THROUGH = 8;	244	}
233		245
234	pub const FILE_BEGIN = 0;	246	pub fn FindClose(hFindFile: HANDLE) void {
235	pub const FILE_CURRENT = 1;	247	assert(kernel32.FindClose(hFindFile) != 0);
236	pub const FILE_END = 2;	248	}
237		249
238	pub const HEAP_CREATE_ENABLE_EXECUTE = 0x00040000;	250	pub const ReadFileError = error{Unexpected};
239	pub const HEAP_GENERATE_EXCEPTIONS = 0x00000004;	251
240	pub const HEAP_NO_SERIALIZE = 0x00000001;	252	pub fn ReadFile(in_hFile: HANDLE, buffer: []u8) ReadFileError!usize {
241		253	var index: usize = 0;
242	// AllocationType values	254	while (index < buffer.len) {
243	pub const MEM_COMMIT = 0x1000;	255	const want_read_count = @intCast(DWORD, math.min(DWORD(maxInt(DWORD)), buffer.len - index));
244	pub const MEM_RESERVE = 0x2000;	256	var amt_read: DWORD = undefined;
245	pub const MEM_RESET = 0x80000;	257	if (kernel32.ReadFile(in_hFile, buffer.ptr + index, want_read_count, &amt_read, null) == 0) {
246	pub const MEM_RESET_UNDO = 0x1000000;	258	switch (kernel32.GetLastError()) {
247	pub const MEM_LARGE_PAGES = 0x20000000;	259	ERROR.OPERATION_ABORTED => continue,
248	pub const MEM_PHYSICAL = 0x400000;	260	ERROR.BROKEN_PIPE => return index,
249	pub const MEM_TOP_DOWN = 0x100000;	261	else => \|err\| return unexpectedError(err),
250	pub const MEM_WRITE_WATCH = 0x200000;	262	}
251		263	}
252	// Protect values	264	if (amt_read == 0) return index;
253	pub const PAGE_EXECUTE = 0x10;	265	index += amt_read;
254	pub const PAGE_EXECUTE_READ = 0x20;	266	}
255	pub const PAGE_EXECUTE_READWRITE = 0x40;	267	return index;
256	pub const PAGE_EXECUTE_WRITECOPY = 0x80;	268	}
257	pub const PAGE_NOACCESS = 0x01;	269
258	pub const PAGE_READONLY = 0x02;	270	pub const WriteFileError = error{
259	pub const PAGE_READWRITE = 0x04;	271	SystemResources,
260	pub const PAGE_WRITECOPY = 0x08;	272	OperationAborted,
261	pub const PAGE_TARGETS_INVALID = 0x40000000;	273	BrokenPipe,
262	pub const PAGE_TARGETS_NO_UPDATE = 0x40000000; // Same as PAGE_TARGETS_INVALID	274	Unexpected,
263	pub const PAGE_GUARD = 0x100;
264	pub const PAGE_NOCACHE = 0x200;
265	pub const PAGE_WRITECOMBINE = 0x400;
266
267	// FreeType values
268	pub const MEM_COALESCE_PLACEHOLDERS = 0x1;
269	pub const MEM_RESERVE_PLACEHOLDERS = 0x2;
270	pub const MEM_DECOMMIT = 0x4000;
271	pub const MEM_RELEASE = 0x8000;
272
273	pub const PTHREAD_START_ROUTINE = extern fn (LPVOID) DWORD;
274	pub const LPTHREAD_START_ROUTINE = PTHREAD_START_ROUTINE;
275
276	pub const WIN32_FIND_DATAW = extern struct {
277	dwFileAttributes: DWORD,
278	ftCreationTime: FILETIME,
279	ftLastAccessTime: FILETIME,
280	ftLastWriteTime: FILETIME,
281	nFileSizeHigh: DWORD,
282	nFileSizeLow: DWORD,
283	dwReserved0: DWORD,
284	dwReserved1: DWORD,
285	cFileName: [260]u16,
286	cAlternateFileName: [14]u16,
287	};	275	};
288		276
289	pub const FILETIME = extern struct {	277	/// This function is for blocking file descriptors only. For non-blocking, see
290	dwLowDateTime: DWORD,	278	/// `WriteFileAsync`.
291	dwHighDateTime: DWORD,	279	pub fn WriteFile(handle: HANDLE, bytes: []const u8) WriteFileError!void {
		280	var bytes_written: DWORD = undefined;
		281	// TODO replace this @intCast with a loop that writes all the bytes
		282	if (kernel32.WriteFile(handle, bytes.ptr, @intCast(u32, bytes.len), &bytes_written, null) == 0) {
		283	switch (kernel32.GetLastError()) {
		284	ERROR.INVALID_USER_BUFFER => return error.SystemResources,
		285	ERROR.NOT_ENOUGH_MEMORY => return error.SystemResources,
		286	ERROR.OPERATION_ABORTED => return error.OperationAborted,
		287	ERROR.NOT_ENOUGH_QUOTA => return error.SystemResources,
		288	ERROR.IO_PENDING => unreachable, // this function is for blocking files only
		289	ERROR.BROKEN_PIPE => return error.BrokenPipe,
		290	else => \|err\| return unexpectedError(err),
		291	}
		292	}
		293	}
		294
		295	pub const GetCurrentDirectoryError = error{
		296	NameTooLong,
		297	Unexpected,
292	};	298	};
293		299
294	pub const SYSTEM_INFO = extern struct {	300	/// The result is a slice of `buffer`, indexed from 0.
295	anon1: extern union {	301	pub fn GetCurrentDirectory(buffer: []u8) GetCurrentDirectoryError![]u8 {
296	dwOemId: DWORD,	302	var utf16le_buf: [PATH_MAX_WIDE]u16 = undefined;
297	anon2: extern struct {	303	const result = kernel32.GetCurrentDirectoryW(utf16le_buf.len, &utf16le_buf);
298	wProcessorArchitecture: WORD,	304	if (result == 0) {
299	wReserved: WORD,	305	switch (kernel32.GetLastError()) {
300	},	306	else => \|err\| return unexpectedError(err),
301	},	307	}
302	dwPageSize: DWORD,	308	}
303	lpMinimumApplicationAddress: LPVOID,	309	assert(result <= utf16le_buf.len);
304	lpMaximumApplicationAddress: LPVOID,	310	const utf16le_slice = utf16le_buf[0..result];
305	dwActiveProcessorMask: DWORD_PTR,	311	// Trust that Windows gives us valid UTF-16LE.
306	dwNumberOfProcessors: DWORD,	312	var end_index: usize = 0;
307	dwProcessorType: DWORD,	313	var it = std.unicode.Utf16LeIterator.init(utf16le_slice);
308	dwAllocationGranularity: DWORD,	314	while (it.nextCodepoint() catch unreachable) \|codepoint\| {
309	wProcessorLevel: WORD,	315	const seq_len = std.unicode.utf8CodepointSequenceLength(codepoint) catch unreachable;
310	wProcessorRevision: WORD,	316	if (end_index + seq_len >= buffer.len)
		317	return error.NameTooLong;
		318	end_index += std.unicode.utf8Encode(codepoint, buffer[end_index..]) catch unreachable;
		319	}
		320	return buffer[0..end_index];
		321	}
		322
		323	pub const CreateSymbolicLinkError = error{Unexpected};
		324
		325	pub fn CreateSymbolicLink(
		326	sym_link_path: []const u8,
		327	target_path: []const u8,
		328	flags: DWORD,
		329	) CreateSymbolicLinkError!void {
		330	const sym_link_path_w = try sliceToPrefixedFileW(sym_link_path);
		331	const target_path_w = try sliceToPrefixedFileW(target_path);
		332	return CreateSymbolicLinkW(&sym_link_path_w, &target_path_w, flags);
		333	}
		334
		335	pub fn CreateSymbolicLinkW(
		336	sym_link_path: [*]const u16,
		337	target_path: [*]const u16,
		338	flags: DWORD,
		339	) CreateSymbolicLinkError!void {
		340	if (kernel32.CreateSymbolicLinkW(sym_link_path, target_path, flags) == 0) {
		341	switch (kernel32.GetLastError()) {
		342	else => \|err\| return unexpectedError(err),
		343	}
		344	}
		345	}
		346
		347	pub const DeleteFileError = error{
		348	FileNotFound,
		349	AccessDenied,
		350	NameTooLong,
		351	Unexpected,
311	};	352	};
312		353
313	pub const HRESULT = c_long;	354	pub fn DeleteFile(filename: []const u8) DeleteFileError!void {
		355	const filename_w = try sliceToPrefixedFileW(filename);
		356	return DeleteFileW(&filename_w);
		357	}
314		358
315	pub const KNOWNFOLDERID = GUID;	359	pub fn DeleteFileW(filename: [*]const u16) DeleteFileError!void {
316	pub const GUID = extern struct {	360	if (kernel32.DeleteFileW(filename) == 0) {
317	Data1: c_ulong,	361	switch (kernel32.GetLastError()) {
318	Data2: c_ushort,	362	ERROR.FILE_NOT_FOUND => return error.FileNotFound,
319	Data3: c_ushort,	363	ERROR.ACCESS_DENIED => return error.AccessDenied,
320	Data4: [8]u8,	364	ERROR.FILENAME_EXCED_RANGE => return error.NameTooLong,
		365	ERROR.INVALID_PARAMETER => return error.NameTooLong,
		366	else => \|err\| return unexpectedError(err),
		367	}
		368	}
		369	}
321		370
322	pub fn parse(str: []const u8) GUID {	371	pub const MoveFileError = error{Unexpected};
323	var guid: GUID = undefined;
324	var index: usize = 0;
325	assert(str[index] == '{');
326	index += 1;
327		372
328	guid.Data1 = std.fmt.parseUnsigned(c_ulong, str[index .. index + 8], 16) catch unreachable;	373	pub fn MoveFileEx(old_path: []const u8, new_path: []const u8, flags: DWORD) MoveFileError!void {
329	index += 8;	374	const old_path_w = try sliceToPrefixedFileW(old_path);
		375	const new_path_w = try sliceToPrefixedFileW(new_path);
		376	return MoveFileExW(&old_path_w, &new_path_w, flags);
		377	}
330		378
331	assert(str[index] == '-');	379	pub fn MoveFileExW(old_path: []const u16, new_path: []const u16, flags: DWORD) MoveFileError!void {
332	index += 1;	380	if (kernel32.MoveFileExW(old_path, new_path, flags) == 0) {
		381	switch (kernel32.GetLastError()) {
		382	else => \|err\| return unexpectedError(err),
		383	}
		384	}
		385	}
333		386
334	guid.Data2 = std.fmt.parseUnsigned(c_ushort, str[index .. index + 4], 16) catch unreachable;	387	pub const CreateDirectoryError = error{
335	index += 4;	388	PathAlreadyExists,
		389	FileNotFound,
		390	Unexpected,
		391	};
336		392
337	assert(str[index] == '-');	393	pub fn CreateDirectory(pathname: []const u8, attrs: ?*SECURITY_ATTRIBUTES) CreateDirectoryError!void {
338	index += 1;	394	const pathname_w = try sliceToPrefixedFileW(pathname);
		395	return CreateDirectoryW(&pathname_w, attrs);
		396	}
339		397
340	guid.Data3 = std.fmt.parseUnsigned(c_ushort, str[index .. index + 4], 16) catch unreachable;	398	pub fn CreateDirectoryW(pathname: []const u16, attrs: ?SECURITY_ATTRIBUTES) CreateDirectoryError!void {
341	index += 4;	399	if (kernel32.CreateDirectoryW(pathname, attrs) == 0) {
		400	switch (kernel32.GetLastError()) {
		401	ERROR.ALREADY_EXISTS => return error.PathAlreadyExists,
		402	ERROR.PATH_NOT_FOUND => return error.FileNotFound,
		403	else => \|err\| return unexpectedError(err),
		404	}
		405	}
		406	}
342		407
343	assert(str[index] == '-');	408	pub const RemoveDirectoryError = error{
344	index += 1;	409	FileNotFound,
		410	DirNotEmpty,
		411	Unexpected,
		412	};
345		413
346	guid.Data4[0] = std.fmt.parseUnsigned(u8, str[index .. index + 2], 16) catch unreachable;	414	pub fn RemoveDirectory(dir_path: []const u8) RemoveDirectoryError!void {
347	index += 2;	415	const dir_path_w = try sliceToPrefixedFileW(dir_path);
348	guid.Data4[1] = std.fmt.parseUnsigned(u8, str[index .. index + 2], 16) catch unreachable;	416	return RemoveDirectoryW(&dir_path_w);
349	index += 2;	417	}
350		418
351	assert(str[index] == '-');	419	pub fn RemoveDirectoryW(dir_path_w: [*]const u16) RemoveDirectoryError!void {
352	index += 1;	420	if (kernel32.RemoveDirectoryW(dir_path_w) == 0) {
		421	switch (kernel32.GetLastError()) {
		422	ERROR.PATH_NOT_FOUND => return error.FileNotFound,
		423	ERROR.DIR_NOT_EMPTY => return error.DirNotEmpty,
		424	else => \|err\| return unexpectedError(err),
		425	}
		426	}
		427	}
353		428
354	var i: usize = 2;	429	pub const GetStdHandleError = error{
355	while (i < guid.Data4.len) : (i += 1) {	430	NoStandardHandleAttached,
356	guid.Data4[i] = std.fmt.parseUnsigned(u8, str[index .. index + 2], 16) catch unreachable;	431	Unexpected,
357	index += 2;	432	};
		433
		434	pub fn GetStdHandle(handle_id: DWORD) GetStdHandleError!HANDLE {
		435	const handle = kernel32.GetStdHandle(handle_id) orelse return error.NoStandardHandleAttached;
		436	if (handle == INVALID_HANDLE_VALUE) {
		437	switch (kernel32.GetLastError()) {
		438	else => \|err\| return unexpectedError(err),
		439	}
		440	}
		441	return handle;
		442	}
		443
		444	pub const SetFilePointerError = error{Unexpected};
		445
		446	/// The SetFilePointerEx function with the `dwMoveMethod` parameter set to `FILE_BEGIN`.
		447	pub fn SetFilePointerEx_BEGIN(handle: HANDLE, offset: u64) SetFilePointerError!void {
		448	// "The starting point is zero or the beginning of the file. If [FILE_BEGIN]
		449	// is specified, then the liDistanceToMove parameter is interpreted as an unsigned value."
		450	// https://docs.microsoft.com/en-us/windows/desktop/api/fileapi/nf-fileapi-setfilepointerex
		451	const ipos = @bitCast(LARGE_INTEGER, offset);
		452	if (kernel32.SetFilePointerEx(handle, ipos, null, FILE_BEGIN) == 0) {
		453	switch (kernel32.GetLastError()) {
		454	ERROR.INVALID_PARAMETER => unreachable,
		455	ERROR.INVALID_HANDLE => unreachable,
		456	else => \|err\| return unexpectedError(err),
		457	}
		458	}
		459	}
		460
		461	/// The SetFilePointerEx function with the `dwMoveMethod` parameter set to `FILE_CURRENT`.
		462	pub fn SetFilePointerEx_CURRENT(handle: HANDLE, offset: i64) SetFilePointerError!void {
		463	if (kernel32.SetFilePointerEx(handle, offset, null, FILE_CURRENT) == 0) {
		464	switch (kernel32.GetLastError()) {
		465	ERROR.INVALID_PARAMETER => unreachable,
		466	ERROR.INVALID_HANDLE => unreachable,
		467	else => \|err\| return unexpectedError(err),
		468	}
		469	}
		470	}
		471
		472	/// The SetFilePointerEx function with the `dwMoveMethod` parameter set to `FILE_END`.
		473	pub fn SetFilePointerEx_END(handle: HANDLE, offset: i64) SetFilePointerError!void {
		474	if (kernel32.SetFilePointerEx(handle, offset, null, FILE_END) == 0) {
		475	switch (kernel32.GetLastError()) {
		476	ERROR.INVALID_PARAMETER => unreachable,
		477	ERROR.INVALID_HANDLE => unreachable,
		478	else => \|err\| return unexpectedError(err),
358	}	479	}
		480	}
		481	}
359		482
360	assert(str[index] == '}');	483	/// The SetFilePointerEx function with parameters to get the current offset.
361	index += 1;	484	pub fn SetFilePointerEx_CURRENT_get(handle: HANDLE) SetFilePointerError!u64 {
362	return guid;	485	var result: LARGE_INTEGER = undefined;
		486	if (kernel32.SetFilePointerEx(handle, 0, &result, FILE_CURRENT) == 0) {
		487	switch (kernel32.GetLastError()) {
		488	ERROR.INVALID_PARAMETER => unreachable,
		489	ERROR.INVALID_HANDLE => unreachable,
		490	else => \|err\| return unexpectedError(err),
		491	}
363	}	492	}
		493	// Based on the docs for FILE_BEGIN, it seems that the returned signed integer
		494	// should be interpreted as an unsigned integer.
		495	return @bitCast(u64, result);
		496	}
		497
		498	pub const GetFinalPathNameByHandleError = error{
		499	FileNotFound,
		500	SystemResources,
		501	NameTooLong,
		502	Unexpected,
364	};	503	};
365		504
366	pub const FOLDERID_LocalAppData = GUID.parse("{F1B32785-6FBA-4FCF-9D55-7B8E7F157091}");	505	pub fn GetFinalPathNameByHandleW(
367		506	hFile: HANDLE,
368	pub const KF_FLAG_DEFAULT = 0;	507	buf_ptr: [*]u16,
369	pub const KF_FLAG_NO_APPCONTAINER_REDIRECTION = 65536;	508	buf_len: DWORD,
370	pub const KF_FLAG_CREATE = 32768;	509	flags: DWORD,
371	pub const KF_FLAG_DONT_VERIFY = 16384;	510	) GetFinalPathNameByHandleError!DWORD {
372	pub const KF_FLAG_DONT_UNEXPAND = 8192;	511	const rc = kernel32.GetFinalPathNameByHandleW(hFile, buf_ptr, buf_len, flags);
373	pub const KF_FLAG_NO_ALIAS = 4096;	512	if (rc == 0) {
374	pub const KF_FLAG_INIT = 2048;	513	switch (kernel32.GetLastError()) {
375	pub const KF_FLAG_DEFAULT_PATH = 1024;	514	ERROR.FILE_NOT_FOUND => return error.FileNotFound,
376	pub const KF_FLAG_NOT_PARENT_RELATIVE = 512;	515	ERROR.PATH_NOT_FOUND => return error.FileNotFound,
377	pub const KF_FLAG_SIMPLE_IDLIST = 256;	516	ERROR.NOT_ENOUGH_MEMORY => return error.SystemResources,
378	pub const KF_FLAG_ALIAS_ONLY = -2147483648;	517	ERROR.FILENAME_EXCED_RANGE => return error.NameTooLong,
379		518	ERROR.INVALID_PARAMETER => unreachable,
380	pub const S_OK = 0;	519	else => \|err\| return unexpectedError(err),
381	pub const E_NOTIMPL = @bitCast(c_long, c_ulong(0x80004001));	520	}
382	pub const E_NOINTERFACE = @bitCast(c_long, c_ulong(0x80004002));	521	}
383	pub const E_POINTER = @bitCast(c_long, c_ulong(0x80004003));	522	return rc;
384	pub const E_ABORT = @bitCast(c_long, c_ulong(0x80004004));	523	}
385	pub const E_FAIL = @bitCast(c_long, c_ulong(0x80004005));	524
386	pub const E_UNEXPECTED = @bitCast(c_long, c_ulong(0x8000FFFF));	525	pub const GetFileSizeError = error{Unexpected};
387	pub const E_ACCESSDENIED = @bitCast(c_long, c_ulong(0x80070005));	526
388	pub const E_HANDLE = @bitCast(c_long, c_ulong(0x80070006));	527	pub fn GetFileSizeEx(hFile: HANDLE) GetFileSizeError!u64 {
389	pub const E_OUTOFMEMORY = @bitCast(c_long, c_ulong(0x8007000E));	528	var file_size: LARGE_INTEGER = undefined;
390	pub const E_INVALIDARG = @bitCast(c_long, c_ulong(0x80070057));	529	if (kernel32.GetFileSizeEx(hFile, &file_size) == 0) {
391		530	switch (kernel32.GetLastError()) {
392	pub const FILE_FLAG_BACKUP_SEMANTICS = 0x02000000;	531	else => \|err\| return unexpectedError(err),
393	pub const FILE_FLAG_DELETE_ON_CLOSE = 0x04000000;	532	}
394	pub const FILE_FLAG_NO_BUFFERING = 0x20000000;	533	}
395	pub const FILE_FLAG_OPEN_NO_RECALL = 0x00100000;	534	return @bitCast(u64, file_size);
396	pub const FILE_FLAG_OPEN_REPARSE_POINT = 0x00200000;	535	}
397	pub const FILE_FLAG_OVERLAPPED = 0x40000000;	536
398	pub const FILE_FLAG_POSIX_SEMANTICS = 0x0100000;	537	pub const GetFileAttributesError = error{
399	pub const FILE_FLAG_RANDOM_ACCESS = 0x10000000;	538	FileNotFound,
400	pub const FILE_FLAG_SESSION_AWARE = 0x00800000;	539	PermissionDenied,
401	pub const FILE_FLAG_SEQUENTIAL_SCAN = 0x08000000;	540	Unexpected,
402	pub const FILE_FLAG_WRITE_THROUGH = 0x80000000;	541	};
403		542
404	pub const SMALL_RECT = extern struct {	543	pub fn GetFileAttributes(filename: []const u8) GetFileAttributesError!DWORD {
405	Left: SHORT,	544	const filename_w = try sliceToPrefixedFileW(filename);
406	Top: SHORT,	545	return GetFileAttributesW(&filename_w);
407	Right: SHORT,	546	}
408	Bottom: SHORT,	547
		548	pub fn GetFileAttributesW(lpFileName: [*]const u16) GetFileAttributesError!DWORD {
		549	const rc = kernel32.GetFileAttributesW(lpFileName);
		550	if (rc == INVALID_FILE_ATTRIBUTES) {
		551	switch (kernel32.GetLastError()) {
		552	ERROR.FILE_NOT_FOUND => return error.FileNotFound,
		553	ERROR.PATH_NOT_FOUND => return error.FileNotFound,
		554	ERROR.ACCESS_DENIED => return error.PermissionDenied,
		555	else => \|err\| return unexpectedError(err),
		556	}
		557	}
		558	return rc;
		559	}
		560
		561	const GetModuleFileNameError = error{Unexpected};
		562
		563	pub fn GetModuleFileNameW(hModule: ?HMODULE, buf_ptr: [*]u16, buf_len: DWORD) GetModuleFileNameError![]u16 {
		564	const rc = kernel32.GetModuleFileNameW(hModule, buf_ptr, buf_len);
		565	if (rc == 0) {
		566	switch (kernel32.GetLastError()) {
		567	else => \|err\| return unexpectedError(err),
		568	}
		569	}
		570	return buf_ptr[0..rc];
		571	}
		572
		573	pub const TerminateProcessError = error{Unexpected};
		574
		575	pub fn TerminateProcess(hProcess: HANDLE, uExitCode: UINT) TerminateProcessError!void {
		576	if (kernel32.TerminateProcess(hProcess, uExitCode) == 0) {
		577	switch (kernel32.GetLastError()) {
		578	else => \|err\| return unexpectedError(err),
		579	}
		580	}
		581	}
		582
		583	pub const VirtualAllocError = error{Unexpected};
		584
		585	pub fn VirtualAlloc(addr: ?LPVOID, size: usize, alloc_type: DWORD, flProtect: DWORD) VirtualAllocError!LPVOID {
		586	return kernel32.VirtualAlloc(addr, size, alloc_type, flProtect) orelse {
		587	switch (kernel32.GetLastError()) {
		588	else => \|err\| return unexpectedError(err),
		589	}
		590	};
		591	}
		592
		593	pub fn VirtualFree(lpAddress: ?LPVOID, dwSize: usize, dwFreeType: DWORD) void {
		594	assert(kernel32.VirtualFree(lpAddress, dwSize, dwFreeType) != 0);
		595	}
		596
		597	pub const SetConsoleTextAttributeError = error{Unexpected};
		598
		599	pub fn SetConsoleTextAttribute(hConsoleOutput: HANDLE, wAttributes: WORD) SetConsoleTextAttributeError!void {
		600	if (kernel32.SetConsoleTextAttribute(hConsoleOutput, wAttributes) == 0) {
		601	switch (kernel32.GetLastError()) {
		602	else => \|err\| return unexpectedError(err),
		603	}
		604	}
		605	}
		606
		607	pub const GetEnvironmentStringsError = error{OutOfMemory};
		608
		609	pub fn GetEnvironmentStringsW() GetEnvironmentStringsError![*]u16 {
		610	return kernel32.GetEnvironmentStringsW() orelse return error.OutOfMemory;
		611	}
		612
		613	pub fn FreeEnvironmentStringsW(penv: [*]u16) void {
		614	assert(kernel32.FreeEnvironmentStringsW(penv) != 0);
		615	}
		616
		617	pub const GetEnvironmentVariableError = error{
		618	EnvironmentVariableNotFound,
		619	Unexpected,
409	};	620	};
410		621
411	pub const COORD = extern struct {	622	pub fn GetEnvironmentVariableW(lpName: LPWSTR, lpBuffer: LPWSTR, nSize: DWORD) GetEnvironmentVariableError!DWORD {
412	X: SHORT,	623	const rc = kernel32.GetEnvironmentVariableW(lpName, lpBuffer, nSize);
413	Y: SHORT,	624	if (rc == 0) {
		625	switch (kernel32.GetLastError()) {
		626	ERROR.ENVVAR_NOT_FOUND => return error.EnvironmentVariableNotFound,
		627	else => \|err\| return unexpectedError(err),
		628	}
		629	}
		630	return rc;
		631	}
		632
		633	pub const CreateProcessError = error{
		634	FileNotFound,
		635	InvalidName,
		636	Unexpected,
414	};	637	};
415		638
416	pub const CREATE_UNICODE_ENVIRONMENT = 1024;	639	pub fn CreateProcessW(
		640	lpApplicationName: ?LPWSTR,
		641	lpCommandLine: LPWSTR,
		642	lpProcessAttributes: ?*SECURITY_ATTRIBUTES,
		643	lpThreadAttributes: ?*SECURITY_ATTRIBUTES,
		644	bInheritHandles: BOOL,
		645	dwCreationFlags: DWORD,
		646	lpEnvironment: ?*c_void,
		647	lpCurrentDirectory: ?LPWSTR,
		648	lpStartupInfo: *STARTUPINFOW,
		649	lpProcessInformation: *PROCESS_INFORMATION,
		650	) CreateProcessError!void {
		651	if (kernel32.CreateProcessW(
		652	lpApplicationName,
		653	lpCommandLine,
		654	lpProcessAttributes,
		655	lpThreadAttributes,
		656	bInheritHandles,
		657	dwCreationFlags,
		658	lpEnvironment,
		659	lpCurrentDirectory,
		660	lpStartupInfo,
		661	lpProcessInformation,
		662	) == 0) {
		663	switch (kernel32.GetLastError()) {
		664	ERROR.FILE_NOT_FOUND => return error.FileNotFound,
		665	ERROR.PATH_NOT_FOUND => return error.FileNotFound,
		666	ERROR.INVALID_PARAMETER => unreachable,
		667	ERROR.INVALID_NAME => return error.InvalidName,
		668	else => \|err\| return unexpectedError(err),
		669	}
		670	}
		671	}
417		672
418	pub const TLS_OUT_OF_INDEXES = 4294967295;	673	pub const LoadLibraryError = error{
419	pub const IMAGE_TLS_DIRECTORY = extern struct {	674	FileNotFound,
420	StartAddressOfRawData: usize,	675	Unexpected,
421	EndAddressOfRawData: usize,
422	AddressOfIndex: usize,
423	AddressOfCallBacks: usize,
424	SizeOfZeroFill: u32,
425	Characteristics: u32,
426	};	676	};
427	pub const IMAGE_TLS_DIRECTORY64 = IMAGE_TLS_DIRECTORY;
428	pub const IMAGE_TLS_DIRECTORY32 = IMAGE_TLS_DIRECTORY;
429		677
430	pub const PIMAGE_TLS_CALLBACK = ?extern fn (PVOID, DWORD, PVOID) void;	678	pub fn LoadLibraryW(lpLibFileName: [*]const u16) LoadLibraryError!HMODULE {
		679	return kernel32.LoadLibraryW(lpLibFileName) orelse {
		680	switch (kernel32.GetLastError()) {
		681	ERROR.FILE_NOT_FOUND => return error.FileNotFound,
		682	ERROR.PATH_NOT_FOUND => return error.FileNotFound,
		683	ERROR.MOD_NOT_FOUND => return error.FileNotFound,
		684	else => \|err\| return unexpectedError(err),
		685	}
		686	};
		687	}
		688
		689	pub fn FreeLibrary(hModule: HMODULE) void {
		690	assert(kernel32.FreeLibrary(hModule) != 0);
		691	}
		692
		693	pub fn QueryPerformanceFrequency() u64 {
		694	// "On systems that run Windows XP or later, the function will always succeed"
		695	// https://docs.microsoft.com/en-us/windows/desktop/api/profileapi/nf-profileapi-queryperformancefrequency
		696	var result: LARGE_INTEGER = undefined;
		697	assert(kernel32.QueryPerformanceFrequency(&result) != 0);
		698	// The kernel treats this integer as unsigned.
		699	return @bitCast(u64, result);
		700	}
		701
		702	pub fn QueryPerformanceCounter() u64 {
		703	// "On systems that run Windows XP or later, the function will always succeed"
		704	// https://docs.microsoft.com/en-us/windows/desktop/api/profileapi/nf-profileapi-queryperformancecounter
		705	var result: LARGE_INTEGER = undefined;
		706	assert(kernel32.QueryPerformanceCounter(&result) != 0);
		707	// The kernel treats this integer as unsigned.
		708	return @bitCast(u64, result);
		709	}
		710
		711	pub fn InitOnceExecuteOnce(InitOnce: INIT_ONCE, InitFn: INIT_ONCE_FN, Parameter: ?c_void, Context: ?*c_void) void {
		712	assert(kernel32.InitOnceExecuteOnce(InitOnce, InitFn, Parameter, Context) != 0);
		713	}
		714
		715	pub fn HeapFree(hHeap: HANDLE, dwFlags: DWORD, lpMem: *c_void) void {
		716	assert(kernel32.HeapFree(hHeap, dwFlags, lpMem) != 0);
		717	}
		718
		719	pub fn HeapDestroy(hHeap: HANDLE) void {
		720	assert(kernel32.HeapDestroy(hHeap) != 0);
		721	}
		722
		723	pub fn cStrToPrefixedFileW(s: [*]const u8) ![PATH_MAX_WIDE + 1]u16 {
		724	return sliceToPrefixedFileW(mem.toSliceConst(u8, s));
		725	}
		726
		727	pub fn sliceToPrefixedFileW(s: []const u8) ![PATH_MAX_WIDE + 1]u16 {
		728	return sliceToPrefixedSuffixedFileW(s, []u16{0});
		729	}
		730
		731	pub fn sliceToPrefixedSuffixedFileW(s: []const u8, comptime suffix: []const u16) ![PATH_MAX_WIDE + suffix.len]u16 {
		732	// TODO well defined copy elision
		733	var result: [PATH_MAX_WIDE + suffix.len]u16 = undefined;
		734
		735	// > File I/O functions in the Windows API convert "/" to "\" as part of
		736	// > converting the name to an NT-style name, except when using the "\\?\"
		737	// > prefix as detailed in the following sections.
		738	// from https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#maximum-path-length-limitation
		739	// Because we want the larger maximum path length for absolute paths, we
		740	// disallow forward slashes in zig std lib file functions on Windows.
		741	for (s) \|byte\| {
		742	switch (byte) {
		743	'/', '*', '?', '"', '<', '>', '\|' => return error.BadPathName,
		744	else => {},
		745	}
		746	}
		747	const start_index = if (mem.startsWith(u8, s, "\\\\") or !std.fs.path.isAbsolute(s)) 0 else blk: {
		748	const prefix = []u16{ '\\', '\\', '?', '\\' };
		749	mem.copy(u16, result[0..], prefix);
		750	break :blk prefix.len;
		751	};
		752	const end_index = start_index + try std.unicode.utf8ToUtf16Le(result[start_index..], s);
		753	assert(end_index <= result.len);
		754	if (end_index + suffix.len > result.len) return error.NameTooLong;
		755	mem.copy(u16, result[end_index..], suffix);
		756	return result;
		757	}
		758
		759	/// Call this when you made a windows DLL call or something that does SetLastError
		760	/// and you get an unexpected error.
		761	pub fn unexpectedError(err: DWORD) std.os.UnexpectedError {
		762	if (std.os.unexpected_error_tracing) {
		763	std.debug.warn("unexpected GetLastError(): {}\n", err);
		764	std.debug.dumpCurrentStackTrace(null);
		765	}
		766	return error.Unexpected;
		767	}

std/os/windows/advapi32.zig+1-12

...	@@ -1,15 +1,4 @@	...	@@ -1,15 +1,4 @@
1	use @import("../windows.zig");	1	use @import("bits.zig");
2
3	pub const PROV_RSA_FULL = 1;
4
5	pub const REGSAM = ACCESS_MASK;
6	pub const ACCESS_MASK = DWORD;
7	pub const PHKEY = *HKEY;
8	pub const HKEY = *HKEY__;
9	pub const HKEY__ = extern struct {
10	unused: c_int,
11	};
12	pub const LSTATUS = LONG;
13		2
14	pub extern "advapi32" stdcallcc fn RegOpenKeyExW(	3	pub extern "advapi32" stdcallcc fn RegOpenKeyExW(
15	hKey: HKEY,	4	hKey: HKEY,

std/os/windows/bits.zig created+527

...	@@ -0,0 +1,527 @@
1	// Platform-dependent types and values that are used along with OS-specific APIs.
2
3	const builtin = @import("builtin");
4	const std = @import("../../std.zig");
5	const assert = std.debug.assert;
6	const maxInt = std.math.maxInt;
7
8	pub const ERROR = @import("error.zig");
9
10	/// The standard input device. Initially, this is the console input buffer, CONIN$.
11	pub const STD_INPUT_HANDLE = maxInt(DWORD) - 10 + 1;
12
13	/// The standard output device. Initially, this is the active console screen buffer, CONOUT$.
14	pub const STD_OUTPUT_HANDLE = maxInt(DWORD) - 11 + 1;
15
16	/// The standard error device. Initially, this is the active console screen buffer, CONOUT$.
17	pub const STD_ERROR_HANDLE = maxInt(DWORD) - 12 + 1;
18
19	pub const SHORT = c_short;
20	pub const BOOL = c_int;
21	pub const BOOLEAN = BYTE;
22	pub const BYTE = u8;
23	pub const CHAR = u8;
24	pub const DWORD = u32;
25	pub const FLOAT = f32;
26	pub const HANDLE = *c_void;
27	pub const HCRYPTPROV = ULONG_PTR;
28	pub const HINSTANCE = *@OpaqueType();
29	pub const HMODULE = *@OpaqueType();
30	pub const FARPROC = *@OpaqueType();
31	pub const INT = c_int;
32	pub const LPBYTE = *BYTE;
33	pub const LPCH = *CHAR;
34	pub const LPCSTR = [*]const CHAR;
35	pub const LPCTSTR = [*]const TCHAR;
36	pub const LPCVOID = *const c_void;
37	pub const LPDWORD = *DWORD;
38	pub const LPSTR = [*]CHAR;
39	pub const LPTSTR = if (UNICODE) LPWSTR else LPSTR;
40	pub const LPVOID = *c_void;
41	pub const LPWSTR = [*]WCHAR;
42	pub const LPCWSTR = [*]const WCHAR;
43	pub const PVOID = *c_void;
44	pub const PWSTR = [*]WCHAR;
45	pub const SIZE_T = usize;
46	pub const TCHAR = if (UNICODE) WCHAR else u8;
47	pub const UINT = c_uint;
48	pub const ULONG_PTR = usize;
49	pub const DWORD_PTR = ULONG_PTR;
50	pub const UNICODE = false;
51	pub const WCHAR = u16;
52	pub const WORD = u16;
53	pub const LARGE_INTEGER = i64;
54	pub const ULONG = u32;
55	pub const LONG = i32;
56	pub const ULONGLONG = u64;
57	pub const LONGLONG = i64;
58
59	pub const TRUE = 1;
60	pub const FALSE = 0;
61
62	pub const INVALID_HANDLE_VALUE = @intToPtr(HANDLE, maxInt(usize));
63
64	pub const INVALID_FILE_ATTRIBUTES = DWORD(maxInt(DWORD));
65
66	pub const OVERLAPPED = extern struct {
67	Internal: ULONG_PTR,
68	InternalHigh: ULONG_PTR,
69	Offset: DWORD,
70	OffsetHigh: DWORD,
71	hEvent: ?HANDLE,
72	};
73	pub const LPOVERLAPPED = *OVERLAPPED;
74
75	pub const MAX_PATH = 260;
76
77	// TODO issue #305
78	pub const FILE_INFO_BY_HANDLE_CLASS = u32;
79	pub const FileBasicInfo = 0;
80	pub const FileStandardInfo = 1;
81	pub const FileNameInfo = 2;
82	pub const FileRenameInfo = 3;
83	pub const FileDispositionInfo = 4;
84	pub const FileAllocationInfo = 5;
85	pub const FileEndOfFileInfo = 6;
86	pub const FileStreamInfo = 7;
87	pub const FileCompressionInfo = 8;
88	pub const FileAttributeTagInfo = 9;
89	pub const FileIdBothDirectoryInfo = 10;
90	pub const FileIdBothDirectoryRestartInfo = 11;
91	pub const FileIoPriorityHintInfo = 12;
92	pub const FileRemoteProtocolInfo = 13;
93	pub const FileFullDirectoryInfo = 14;
94	pub const FileFullDirectoryRestartInfo = 15;
95	pub const FileStorageInfo = 16;
96	pub const FileAlignmentInfo = 17;
97	pub const FileIdInfo = 18;
98	pub const FileIdExtdDirectoryInfo = 19;
99	pub const FileIdExtdDirectoryRestartInfo = 20;
100
101	pub const FILE_NAME_INFO = extern struct {
102	FileNameLength: DWORD,
103	FileName: [1]WCHAR,
104	};
105
106	/// Return the normalized drive name. This is the default.
107	pub const FILE_NAME_NORMALIZED = 0x0;
108
109	/// Return the opened file name (not normalized).
110	pub const FILE_NAME_OPENED = 0x8;
111
112	/// Return the path with the drive letter. This is the default.
113	pub const VOLUME_NAME_DOS = 0x0;
114
115	/// Return the path with a volume GUID path instead of the drive name.
116	pub const VOLUME_NAME_GUID = 0x1;
117
118	/// Return the path with no drive information.
119	pub const VOLUME_NAME_NONE = 0x4;
120
121	/// Return the path with the volume device path.
122	pub const VOLUME_NAME_NT = 0x2;
123
124	pub const SECURITY_ATTRIBUTES = extern struct {
125	nLength: DWORD,
126	lpSecurityDescriptor: ?*c_void,
127	bInheritHandle: BOOL,
128	};
129	pub const PSECURITY_ATTRIBUTES = *SECURITY_ATTRIBUTES;
130	pub const LPSECURITY_ATTRIBUTES = *SECURITY_ATTRIBUTES;
131
132	pub const GENERIC_READ = 0x80000000;
133	pub const GENERIC_WRITE = 0x40000000;
134	pub const GENERIC_EXECUTE = 0x20000000;
135	pub const GENERIC_ALL = 0x10000000;
136
137	pub const FILE_SHARE_DELETE = 0x00000004;
138	pub const FILE_SHARE_READ = 0x00000001;
139	pub const FILE_SHARE_WRITE = 0x00000002;
140
141	pub const CREATE_ALWAYS = 2;
142	pub const CREATE_NEW = 1;
143	pub const OPEN_ALWAYS = 4;
144	pub const OPEN_EXISTING = 3;
145	pub const TRUNCATE_EXISTING = 5;
146
147	pub const FILE_ATTRIBUTE_ARCHIVE = 0x20;
148	pub const FILE_ATTRIBUTE_COMPRESSED = 0x800;
149	pub const FILE_ATTRIBUTE_DEVICE = 0x40;
150	pub const FILE_ATTRIBUTE_DIRECTORY = 0x10;
151	pub const FILE_ATTRIBUTE_ENCRYPTED = 0x4000;
152	pub const FILE_ATTRIBUTE_HIDDEN = 0x2;
153	pub const FILE_ATTRIBUTE_INTEGRITY_STREAM = 0x8000;
154	pub const FILE_ATTRIBUTE_NORMAL = 0x80;
155	pub const FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = 0x2000;
156	pub const FILE_ATTRIBUTE_NO_SCRUB_DATA = 0x20000;
157	pub const FILE_ATTRIBUTE_OFFLINE = 0x1000;
158	pub const FILE_ATTRIBUTE_READONLY = 0x1;
159	pub const FILE_ATTRIBUTE_RECALL_ON_DATA_ACCESS = 0x400000;
160	pub const FILE_ATTRIBUTE_RECALL_ON_OPEN = 0x40000;
161	pub const FILE_ATTRIBUTE_REPARSE_POINT = 0x400;
162	pub const FILE_ATTRIBUTE_SPARSE_FILE = 0x200;
163	pub const FILE_ATTRIBUTE_SYSTEM = 0x4;
164	pub const FILE_ATTRIBUTE_TEMPORARY = 0x100;
165	pub const FILE_ATTRIBUTE_VIRTUAL = 0x10000;
166
167	pub const PROCESS_INFORMATION = extern struct {
168	hProcess: HANDLE,
169	hThread: HANDLE,
170	dwProcessId: DWORD,
171	dwThreadId: DWORD,
172	};
173
174	pub const STARTUPINFOW = extern struct {
175	cb: DWORD,
176	lpReserved: ?LPWSTR,
177	lpDesktop: ?LPWSTR,
178	lpTitle: ?LPWSTR,
179	dwX: DWORD,
180	dwY: DWORD,
181	dwXSize: DWORD,
182	dwYSize: DWORD,
183	dwXCountChars: DWORD,
184	dwYCountChars: DWORD,
185	dwFillAttribute: DWORD,
186	dwFlags: DWORD,
187	wShowWindow: WORD,
188	cbReserved2: WORD,
189	lpReserved2: ?LPBYTE,
190	hStdInput: ?HANDLE,
191	hStdOutput: ?HANDLE,
192	hStdError: ?HANDLE,
193	};
194
195	pub const STARTF_FORCEONFEEDBACK = 0x00000040;
196	pub const STARTF_FORCEOFFFEEDBACK = 0x00000080;
197	pub const STARTF_PREVENTPINNING = 0x00002000;
198	pub const STARTF_RUNFULLSCREEN = 0x00000020;
199	pub const STARTF_TITLEISAPPID = 0x00001000;
200	pub const STARTF_TITLEISLINKNAME = 0x00000800;
201	pub const STARTF_UNTRUSTEDSOURCE = 0x00008000;
202	pub const STARTF_USECOUNTCHARS = 0x00000008;
203	pub const STARTF_USEFILLATTRIBUTE = 0x00000010;
204	pub const STARTF_USEHOTKEY = 0x00000200;
205	pub const STARTF_USEPOSITION = 0x00000004;
206	pub const STARTF_USESHOWWINDOW = 0x00000001;
207	pub const STARTF_USESIZE = 0x00000002;
208	pub const STARTF_USESTDHANDLES = 0x00000100;
209
210	pub const INFINITE = 4294967295;
211
212	pub const WAIT_ABANDONED = 0x00000080;
213	pub const WAIT_OBJECT_0 = 0x00000000;
214	pub const WAIT_TIMEOUT = 0x00000102;
215	pub const WAIT_FAILED = 0xFFFFFFFF;
216
217	pub const HANDLE_FLAG_INHERIT = 0x00000001;
218	pub const HANDLE_FLAG_PROTECT_FROM_CLOSE = 0x00000002;
219
220	pub const MOVEFILE_COPY_ALLOWED = 2;
221	pub const MOVEFILE_CREATE_HARDLINK = 16;
222	pub const MOVEFILE_DELAY_UNTIL_REBOOT = 4;
223	pub const MOVEFILE_FAIL_IF_NOT_TRACKABLE = 32;
224	pub const MOVEFILE_REPLACE_EXISTING = 1;
225	pub const MOVEFILE_WRITE_THROUGH = 8;
226
227	pub const FILE_BEGIN = 0;
228	pub const FILE_CURRENT = 1;
229	pub const FILE_END = 2;
230
231	pub const HEAP_CREATE_ENABLE_EXECUTE = 0x00040000;
232	pub const HEAP_GENERATE_EXCEPTIONS = 0x00000004;
233	pub const HEAP_NO_SERIALIZE = 0x00000001;
234
235	// AllocationType values
236	pub const MEM_COMMIT = 0x1000;
237	pub const MEM_RESERVE = 0x2000;
238	pub const MEM_RESET = 0x80000;
239	pub const MEM_RESET_UNDO = 0x1000000;
240	pub const MEM_LARGE_PAGES = 0x20000000;
241	pub const MEM_PHYSICAL = 0x400000;
242	pub const MEM_TOP_DOWN = 0x100000;
243	pub const MEM_WRITE_WATCH = 0x200000;
244
245	// Protect values
246	pub const PAGE_EXECUTE = 0x10;
247	pub const PAGE_EXECUTE_READ = 0x20;
248	pub const PAGE_EXECUTE_READWRITE = 0x40;
249	pub const PAGE_EXECUTE_WRITECOPY = 0x80;
250	pub const PAGE_NOACCESS = 0x01;
251	pub const PAGE_READONLY = 0x02;
252	pub const PAGE_READWRITE = 0x04;
253	pub const PAGE_WRITECOPY = 0x08;
254	pub const PAGE_TARGETS_INVALID = 0x40000000;
255	pub const PAGE_TARGETS_NO_UPDATE = 0x40000000; // Same as PAGE_TARGETS_INVALID
256	pub const PAGE_GUARD = 0x100;
257	pub const PAGE_NOCACHE = 0x200;
258	pub const PAGE_WRITECOMBINE = 0x400;
259
260	// FreeType values
261	pub const MEM_COALESCE_PLACEHOLDERS = 0x1;
262	pub const MEM_RESERVE_PLACEHOLDERS = 0x2;
263	pub const MEM_DECOMMIT = 0x4000;
264	pub const MEM_RELEASE = 0x8000;
265
266	pub const PTHREAD_START_ROUTINE = extern fn (LPVOID) DWORD;
267	pub const LPTHREAD_START_ROUTINE = PTHREAD_START_ROUTINE;
268
269	pub const WIN32_FIND_DATAW = extern struct {
270	dwFileAttributes: DWORD,
271	ftCreationTime: FILETIME,
272	ftLastAccessTime: FILETIME,
273	ftLastWriteTime: FILETIME,
274	nFileSizeHigh: DWORD,
275	nFileSizeLow: DWORD,
276	dwReserved0: DWORD,
277	dwReserved1: DWORD,
278	cFileName: [260]u16,
279	cAlternateFileName: [14]u16,
280	};
281
282	pub const FILETIME = extern struct {
283	dwLowDateTime: DWORD,
284	dwHighDateTime: DWORD,
285	};
286
287	pub const SYSTEM_INFO = extern struct {
288	anon1: extern union {
289	dwOemId: DWORD,
290	anon2: extern struct {
291	wProcessorArchitecture: WORD,
292	wReserved: WORD,
293	},
294	},
295	dwPageSize: DWORD,
296	lpMinimumApplicationAddress: LPVOID,
297	lpMaximumApplicationAddress: LPVOID,
298	dwActiveProcessorMask: DWORD_PTR,
299	dwNumberOfProcessors: DWORD,
300	dwProcessorType: DWORD,
301	dwAllocationGranularity: DWORD,
302	wProcessorLevel: WORD,
303	wProcessorRevision: WORD,
304	};
305
306	pub const HRESULT = c_long;
307
308	pub const KNOWNFOLDERID = GUID;
309	pub const GUID = extern struct {
310	Data1: c_ulong,
311	Data2: c_ushort,
312	Data3: c_ushort,
313	Data4: [8]u8,
314
315	pub fn parse(str: []const u8) GUID {
316	var guid: GUID = undefined;
317	var index: usize = 0;
318	assert(str[index] == '{');
319	index += 1;
320
321	guid.Data1 = std.fmt.parseUnsigned(c_ulong, str[index .. index + 8], 16) catch unreachable;
322	index += 8;
323
324	assert(str[index] == '-');
325	index += 1;
326
327	guid.Data2 = std.fmt.parseUnsigned(c_ushort, str[index .. index + 4], 16) catch unreachable;
328	index += 4;
329
330	assert(str[index] == '-');
331	index += 1;
332
333	guid.Data3 = std.fmt.parseUnsigned(c_ushort, str[index .. index + 4], 16) catch unreachable;
334	index += 4;
335
336	assert(str[index] == '-');
337	index += 1;
338
339	guid.Data4[0] = std.fmt.parseUnsigned(u8, str[index .. index + 2], 16) catch unreachable;
340	index += 2;
341	guid.Data4[1] = std.fmt.parseUnsigned(u8, str[index .. index + 2], 16) catch unreachable;
342	index += 2;
343
344	assert(str[index] == '-');
345	index += 1;
346
347	var i: usize = 2;
348	while (i < guid.Data4.len) : (i += 1) {
349	guid.Data4[i] = std.fmt.parseUnsigned(u8, str[index .. index + 2], 16) catch unreachable;
350	index += 2;
351	}
352
353	assert(str[index] == '}');
354	index += 1;
355	return guid;
356	}
357	};
358
359	pub const FOLDERID_LocalAppData = GUID.parse("{F1B32785-6FBA-4FCF-9D55-7B8E7F157091}");
360
361	pub const KF_FLAG_DEFAULT = 0;
362	pub const KF_FLAG_NO_APPCONTAINER_REDIRECTION = 65536;
363	pub const KF_FLAG_CREATE = 32768;
364	pub const KF_FLAG_DONT_VERIFY = 16384;
365	pub const KF_FLAG_DONT_UNEXPAND = 8192;
366	pub const KF_FLAG_NO_ALIAS = 4096;
367	pub const KF_FLAG_INIT = 2048;
368	pub const KF_FLAG_DEFAULT_PATH = 1024;
369	pub const KF_FLAG_NOT_PARENT_RELATIVE = 512;
370	pub const KF_FLAG_SIMPLE_IDLIST = 256;
371	pub const KF_FLAG_ALIAS_ONLY = -2147483648;
372
373	pub const S_OK = 0;
374	pub const E_NOTIMPL = @bitCast(c_long, c_ulong(0x80004001));
375	pub const E_NOINTERFACE = @bitCast(c_long, c_ulong(0x80004002));
376	pub const E_POINTER = @bitCast(c_long, c_ulong(0x80004003));
377	pub const E_ABORT = @bitCast(c_long, c_ulong(0x80004004));
378	pub const E_FAIL = @bitCast(c_long, c_ulong(0x80004005));
379	pub const E_UNEXPECTED = @bitCast(c_long, c_ulong(0x8000FFFF));
380	pub const E_ACCESSDENIED = @bitCast(c_long, c_ulong(0x80070005));
381	pub const E_HANDLE = @bitCast(c_long, c_ulong(0x80070006));
382	pub const E_OUTOFMEMORY = @bitCast(c_long, c_ulong(0x8007000E));
383	pub const E_INVALIDARG = @bitCast(c_long, c_ulong(0x80070057));
384
385	pub const FILE_FLAG_BACKUP_SEMANTICS = 0x02000000;
386	pub const FILE_FLAG_DELETE_ON_CLOSE = 0x04000000;
387	pub const FILE_FLAG_NO_BUFFERING = 0x20000000;
388	pub const FILE_FLAG_OPEN_NO_RECALL = 0x00100000;
389	pub const FILE_FLAG_OPEN_REPARSE_POINT = 0x00200000;
390	pub const FILE_FLAG_OVERLAPPED = 0x40000000;
391	pub const FILE_FLAG_POSIX_SEMANTICS = 0x0100000;
392	pub const FILE_FLAG_RANDOM_ACCESS = 0x10000000;
393	pub const FILE_FLAG_SESSION_AWARE = 0x00800000;
394	pub const FILE_FLAG_SEQUENTIAL_SCAN = 0x08000000;
395	pub const FILE_FLAG_WRITE_THROUGH = 0x80000000;
396
397	pub const SMALL_RECT = extern struct {
398	Left: SHORT,
399	Top: SHORT,
400	Right: SHORT,
401	Bottom: SHORT,
402	};
403
404	pub const COORD = extern struct {
405	X: SHORT,
406	Y: SHORT,
407	};
408
409	pub const CREATE_UNICODE_ENVIRONMENT = 1024;
410
411	pub const TLS_OUT_OF_INDEXES = 4294967295;
412	pub const IMAGE_TLS_DIRECTORY = extern struct {
413	StartAddressOfRawData: usize,
414	EndAddressOfRawData: usize,
415	AddressOfIndex: usize,
416	AddressOfCallBacks: usize,
417	SizeOfZeroFill: u32,
418	Characteristics: u32,
419	};
420	pub const IMAGE_TLS_DIRECTORY64 = IMAGE_TLS_DIRECTORY;
421	pub const IMAGE_TLS_DIRECTORY32 = IMAGE_TLS_DIRECTORY;
422
423	pub const PIMAGE_TLS_CALLBACK = ?extern fn (PVOID, DWORD, PVOID) void;
424
425	pub const PROV_RSA_FULL = 1;
426
427	pub const REGSAM = ACCESS_MASK;
428	pub const ACCESS_MASK = DWORD;
429	pub const PHKEY = *HKEY;
430	pub const HKEY = *HKEY__;
431	pub const HKEY__ = extern struct {
432	unused: c_int,
433	};
434	pub const LSTATUS = LONG;
435
436	pub const FILE_NOTIFY_INFORMATION = extern struct {
437	NextEntryOffset: DWORD,
438	Action: DWORD,
439	FileNameLength: DWORD,
440	FileName: [1]WCHAR,
441	};
442
443	pub const FILE_ACTION_ADDED = 0x00000001;
444	pub const FILE_ACTION_REMOVED = 0x00000002;
445	pub const FILE_ACTION_MODIFIED = 0x00000003;
446	pub const FILE_ACTION_RENAMED_OLD_NAME = 0x00000004;
447	pub const FILE_ACTION_RENAMED_NEW_NAME = 0x00000005;
448
449	pub const LPOVERLAPPED_COMPLETION_ROUTINE = ?extern fn (DWORD, DWORD, *OVERLAPPED) void;
450
451	pub const FILE_LIST_DIRECTORY = 1;
452
453	pub const FILE_NOTIFY_CHANGE_CREATION = 64;
454	pub const FILE_NOTIFY_CHANGE_SIZE = 8;
455	pub const FILE_NOTIFY_CHANGE_SECURITY = 256;
456	pub const FILE_NOTIFY_CHANGE_LAST_ACCESS = 32;
457	pub const FILE_NOTIFY_CHANGE_LAST_WRITE = 16;
458	pub const FILE_NOTIFY_CHANGE_DIR_NAME = 2;
459	pub const FILE_NOTIFY_CHANGE_FILE_NAME = 1;
460	pub const FILE_NOTIFY_CHANGE_ATTRIBUTES = 4;
461
462	pub const CONSOLE_SCREEN_BUFFER_INFO = extern struct {
463	dwSize: COORD,
464	dwCursorPosition: COORD,
465	wAttributes: WORD,
466	srWindow: SMALL_RECT,
467	dwMaximumWindowSize: COORD,
468	};
469
470	pub const FOREGROUND_BLUE = 1;
471	pub const FOREGROUND_GREEN = 2;
472	pub const FOREGROUND_RED = 4;
473	pub const FOREGROUND_INTENSITY = 8;
474
475	pub const LIST_ENTRY = extern struct {
476	Flink: *LIST_ENTRY,
477	Blink: *LIST_ENTRY,
478	};
479
480	pub const RTL_CRITICAL_SECTION_DEBUG = extern struct {
481	Type: WORD,
482	CreatorBackTraceIndex: WORD,
483	CriticalSection: *RTL_CRITICAL_SECTION,
484	ProcessLocksList: LIST_ENTRY,
485	EntryCount: DWORD,
486	ContentionCount: DWORD,
487	Flags: DWORD,
488	CreatorBackTraceIndexHigh: WORD,
489	SpareWORD: WORD,
490	};
491
492	pub const RTL_CRITICAL_SECTION = extern struct {
493	DebugInfo: *RTL_CRITICAL_SECTION_DEBUG,
494	LockCount: LONG,
495	RecursionCount: LONG,
496	OwningThread: HANDLE,
497	LockSemaphore: HANDLE,
498	SpinCount: ULONG_PTR,
499	};
500
501	pub const CRITICAL_SECTION = RTL_CRITICAL_SECTION;
502	pub const INIT_ONCE = RTL_RUN_ONCE;
503	pub const INIT_ONCE_STATIC_INIT = RTL_RUN_ONCE_INIT;
504	pub const INIT_ONCE_FN = extern fn (InitOnce: INIT_ONCE, Parameter: ?c_void, Context: ?*c_void) BOOL;
505
506	pub const RTL_RUN_ONCE = extern struct {
507	Ptr: ?*c_void,
508	};
509
510	pub const RTL_RUN_ONCE_INIT = RTL_RUN_ONCE{ .Ptr = null };
511
512	pub const COINIT_APARTMENTTHREADED = COINIT.COINIT_APARTMENTTHREADED;
513	pub const COINIT_MULTITHREADED = COINIT.COINIT_MULTITHREADED;
514	pub const COINIT_DISABLE_OLE1DDE = COINIT.COINIT_DISABLE_OLE1DDE;
515	pub const COINIT_SPEED_OVER_MEMORY = COINIT.COINIT_SPEED_OVER_MEMORY;
516	pub const COINIT = extern enum {
517	COINIT_APARTMENTTHREADED = 2,
518	COINIT_MULTITHREADED = 0,
519	COINIT_DISABLE_OLE1DDE = 4,
520	COINIT_SPEED_OVER_MEMORY = 8,
521	};
522
523	/// > The maximum path of 32,767 characters is approximate, because the "\\?\"
524	/// > prefix may be expanded to a longer string by the system at run time, and
525	/// > this expansion applies to the total length.
526	/// from https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#maximum-path-length-limitation
527	pub const PATH_MAX_WIDE = 32767;

std/os/windows/kernel32.zig+1-78

...	@@ -1,4 +1,4 @@	...	@@ -1,4 +1,4 @@
1	use @import("../windows.zig");	1	use @import("bits.zig");
2		2
3	pub extern "kernel32" stdcallcc fn CancelIoEx(hFile: HANDLE, lpOverlapped: LPOVERLAPPED) BOOL;	3	pub extern "kernel32" stdcallcc fn CancelIoEx(hFile: HANDLE, lpOverlapped: LPOVERLAPPED) BOOL;
4		4
...	@@ -189,86 +189,9 @@ pub extern "kernel32" stdcallcc fn GetProcAddress(hModule: HMODULE, lpProcName:	...	@@ -189,86 +189,9 @@ pub extern "kernel32" stdcallcc fn GetProcAddress(hModule: HMODULE, lpProcName:
189		189
190	pub extern "kernel32" stdcallcc fn FreeLibrary(hModule: HMODULE) BOOL;	190	pub extern "kernel32" stdcallcc fn FreeLibrary(hModule: HMODULE) BOOL;
191		191
192	pub const FILE_NOTIFY_INFORMATION = extern struct {
193	NextEntryOffset: DWORD,
194	Action: DWORD,
195	FileNameLength: DWORD,
196	FileName: [1]WCHAR,
197	};
198
199	pub const FILE_ACTION_ADDED = 0x00000001;
200	pub const FILE_ACTION_REMOVED = 0x00000002;
201	pub const FILE_ACTION_MODIFIED = 0x00000003;
202	pub const FILE_ACTION_RENAMED_OLD_NAME = 0x00000004;
203	pub const FILE_ACTION_RENAMED_NEW_NAME = 0x00000005;
204
205	pub const LPOVERLAPPED_COMPLETION_ROUTINE = ?extern fn (DWORD, DWORD, *OVERLAPPED) void;
206
207	pub const FILE_LIST_DIRECTORY = 1;
208
209	pub const FILE_NOTIFY_CHANGE_CREATION = 64;
210	pub const FILE_NOTIFY_CHANGE_SIZE = 8;
211	pub const FILE_NOTIFY_CHANGE_SECURITY = 256;
212	pub const FILE_NOTIFY_CHANGE_LAST_ACCESS = 32;
213	pub const FILE_NOTIFY_CHANGE_LAST_WRITE = 16;
214	pub const FILE_NOTIFY_CHANGE_DIR_NAME = 2;
215	pub const FILE_NOTIFY_CHANGE_FILE_NAME = 1;
216	pub const FILE_NOTIFY_CHANGE_ATTRIBUTES = 4;
217
218	pub const CONSOLE_SCREEN_BUFFER_INFO = extern struct {
219	dwSize: COORD,
220	dwCursorPosition: COORD,
221	wAttributes: WORD,
222	srWindow: SMALL_RECT,
223	dwMaximumWindowSize: COORD,
224	};
225
226	pub const FOREGROUND_BLUE = 1;
227	pub const FOREGROUND_GREEN = 2;
228	pub const FOREGROUND_RED = 4;
229	pub const FOREGROUND_INTENSITY = 8;
230
231	pub extern "kernel32" stdcallcc fn InitializeCriticalSection(lpCriticalSection: *CRITICAL_SECTION) void;	192	pub extern "kernel32" stdcallcc fn InitializeCriticalSection(lpCriticalSection: *CRITICAL_SECTION) void;
232	pub extern "kernel32" stdcallcc fn EnterCriticalSection(lpCriticalSection: *CRITICAL_SECTION) void;	193	pub extern "kernel32" stdcallcc fn EnterCriticalSection(lpCriticalSection: *CRITICAL_SECTION) void;
233	pub extern "kernel32" stdcallcc fn LeaveCriticalSection(lpCriticalSection: *CRITICAL_SECTION) void;	194	pub extern "kernel32" stdcallcc fn LeaveCriticalSection(lpCriticalSection: *CRITICAL_SECTION) void;
234	pub extern "kernel32" stdcallcc fn DeleteCriticalSection(lpCriticalSection: *CRITICAL_SECTION) void;	195	pub extern "kernel32" stdcallcc fn DeleteCriticalSection(lpCriticalSection: *CRITICAL_SECTION) void;
235		196
236	pub const LIST_ENTRY = extern struct {
237	Flink: *LIST_ENTRY,
238	Blink: *LIST_ENTRY,
239	};
240
241	pub const RTL_CRITICAL_SECTION_DEBUG = extern struct {
242	Type: WORD,
243	CreatorBackTraceIndex: WORD,
244	CriticalSection: *RTL_CRITICAL_SECTION,
245	ProcessLocksList: LIST_ENTRY,
246	EntryCount: DWORD,
247	ContentionCount: DWORD,
248	Flags: DWORD,
249	CreatorBackTraceIndexHigh: WORD,
250	SpareWORD: WORD,
251	};
252
253	pub const RTL_CRITICAL_SECTION = extern struct {
254	DebugInfo: *RTL_CRITICAL_SECTION_DEBUG,
255	LockCount: LONG,
256	RecursionCount: LONG,
257	OwningThread: HANDLE,
258	LockSemaphore: HANDLE,
259	SpinCount: ULONG_PTR,
260	};
261
262	pub const CRITICAL_SECTION = RTL_CRITICAL_SECTION;
263	pub const INIT_ONCE = RTL_RUN_ONCE;
264	pub const INIT_ONCE_STATIC_INIT = RTL_RUN_ONCE_INIT;
265
266	pub extern "kernel32" stdcallcc fn InitOnceExecuteOnce(InitOnce: INIT_ONCE, InitFn: INIT_ONCE_FN, Parameter: ?c_void, Context: ?*c_void) BOOL;	197	pub extern "kernel32" stdcallcc fn InitOnceExecuteOnce(InitOnce: INIT_ONCE, InitFn: INIT_ONCE_FN, Parameter: ?c_void, Context: ?*c_void) BOOL;
267
268	pub const INIT_ONCE_FN = extern fn (InitOnce: INIT_ONCE, Parameter: ?c_void, Context: ?*c_void) BOOL;
269
270	pub const RTL_RUN_ONCE = extern struct {
271	Ptr: ?*c_void,
272	};
273
274	pub const RTL_RUN_ONCE_INIT = RTL_RUN_ONCE{ .Ptr = null };

std/os/windows/ntdll.zig+1-1

...	@@ -1,3 +1,3 @@	...	@@ -1,3 +1,3 @@
1	use @import("../windows.zig");	1	use @import("bits.zig");
2		2
3	pub extern "NtDll" stdcallcc fn RtlCaptureStackBackTrace(FramesToSkip: DWORD, FramesToCapture: DWORD, BackTrace: *c_void, BackTraceHash: ?DWORD) WORD;	3	pub extern "NtDll" stdcallcc fn RtlCaptureStackBackTrace(FramesToSkip: DWORD, FramesToCapture: DWORD, BackTrace: *c_void, BackTraceHash: ?DWORD) WORD;

std/os/windows/ole32.zig+1-12

...	@@ -1,17 +1,6 @@	...	@@ -1,17 +1,6 @@
1	use @import("../windows.zig");	1	use @import("bits.zig");
2		2
3	pub extern "ole32" stdcallcc fn CoTaskMemFree(pv: LPVOID) void;	3	pub extern "ole32" stdcallcc fn CoTaskMemFree(pv: LPVOID) void;
4	pub extern "ole32" stdcallcc fn CoUninitialize() void;	4	pub extern "ole32" stdcallcc fn CoUninitialize() void;
5	pub extern "ole32" stdcallcc fn CoGetCurrentProcess() DWORD;	5	pub extern "ole32" stdcallcc fn CoGetCurrentProcess() DWORD;
6	pub extern "ole32" stdcallcc fn CoInitializeEx(pvReserved: LPVOID, dwCoInit: DWORD) HRESULT;	6	pub extern "ole32" stdcallcc fn CoInitializeEx(pvReserved: LPVOID, dwCoInit: DWORD) HRESULT;
7
8	pub const COINIT_APARTMENTTHREADED = COINIT.COINIT_APARTMENTTHREADED;
9	pub const COINIT_MULTITHREADED = COINIT.COINIT_MULTITHREADED;
10	pub const COINIT_DISABLE_OLE1DDE = COINIT.COINIT_DISABLE_OLE1DDE;
11	pub const COINIT_SPEED_OVER_MEMORY = COINIT.COINIT_SPEED_OVER_MEMORY;
12	pub const COINIT = extern enum {
13	COINIT_APARTMENTTHREADED = 2,
14	COINIT_MULTITHREADED = 0,
15	COINIT_DISABLE_OLE1DDE = 4,
16	COINIT_SPEED_OVER_MEMORY = 8,
17	};

std/os/windows/shell32.zig+1-1

...	@@ -1,3 +1,3 @@	...	@@ -1,3 +1,3 @@
1	use @import("../windows.zig");	1	use @import("bits.zig");
2		2
3	pub extern "shell32" stdcallcc fn SHGetKnownFolderPath(rfid: const KNOWNFOLDERID, dwFlags: DWORD, hToken: ?HANDLE, ppszPath: [*]WCHAR) HRESULT;	3	pub extern "shell32" stdcallcc fn SHGetKnownFolderPath(rfid: const KNOWNFOLDERID, dwFlags: DWORD, hToken: ?HANDLE, ppszPath: [*]WCHAR) HRESULT;

std/os/windows/util.zig deleted-316

...	@@ -1,316 +0,0 @@
1	const std = @import("../../std.zig");
2	const builtin = @import("builtin");
3	const os = std.os;
4	const unicode = std.unicode;
5	const windows = std.os.windows;
6	const assert = std.debug.assert;
7	const mem = std.mem;
8	const BufMap = std.BufMap;
9	const cstr = std.cstr;
10
11	// > The maximum path of 32,767 characters is approximate, because the "\\?\"
12	// > prefix may be expanded to a longer string by the system at run time, and
13	// > this expansion applies to the total length.
14	// from https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#maximum-path-length-limitation
15	pub const PATH_MAX_WIDE = 32767;
16
17	pub const WaitError = error{
18	WaitAbandoned,
19	WaitTimeOut,
20
21	/// See https://github.com/ziglang/zig/issues/1396
22	Unexpected,
23	};
24
25	pub fn windowsWaitSingle(handle: windows.HANDLE, milliseconds: windows.DWORD) WaitError!void {
26	const result = windows.WaitForSingleObject(handle, milliseconds);
27	return switch (result) {
28	windows.WAIT_ABANDONED => error.WaitAbandoned,
29	windows.WAIT_OBJECT_0 => {},
30	windows.WAIT_TIMEOUT => error.WaitTimeOut,
31	windows.WAIT_FAILED => x: {
32	const err = windows.GetLastError();
33	break :x switch (err) {
34	else => os.unexpectedErrorWindows(err),
35	};
36	},
37	else => error.Unexpected,
38	};
39	}
40
41	pub fn windowsClose(handle: windows.HANDLE) void {
42	assert(windows.CloseHandle(handle) != 0);
43	}
44
45	pub const ReadError = error{
46	OperationAborted,
47	BrokenPipe,
48	Unexpected,
49	};
50
51	pub const WriteError = error{
52	SystemResources,
53	OperationAborted,
54	BrokenPipe,
55
56	/// See https://github.com/ziglang/zig/issues/1396
57	Unexpected,
58	};
59
60	pub fn windowsWrite(handle: windows.HANDLE, bytes: []const u8) WriteError!void {
61	var bytes_written: windows.DWORD = undefined;
62	if (windows.WriteFile(handle, bytes.ptr, @intCast(u32, bytes.len), &bytes_written, null) == 0) {
63	const err = windows.GetLastError();
64	return switch (err) {
65	windows.ERROR.INVALID_USER_BUFFER => WriteError.SystemResources,
66	windows.ERROR.NOT_ENOUGH_MEMORY => WriteError.SystemResources,
67	windows.ERROR.OPERATION_ABORTED => WriteError.OperationAborted,
68	windows.ERROR.NOT_ENOUGH_QUOTA => WriteError.SystemResources,
69	windows.ERROR.IO_PENDING => unreachable,
70	windows.ERROR.BROKEN_PIPE => WriteError.BrokenPipe,
71	else => os.unexpectedErrorWindows(err),
72	};
73	}
74	}
75
76	pub fn windowsIsTty(handle: windows.HANDLE) bool {
77	if (windowsIsCygwinPty(handle))
78	return true;
79
80	var out: windows.DWORD = undefined;
81	return windows.GetConsoleMode(handle, &out) != 0;
82	}
83
84	pub fn windowsIsCygwinPty(handle: windows.HANDLE) bool {
85	const size = @sizeOf(windows.FILE_NAME_INFO);
86	var name_info_bytes align(@alignOf(windows.FILE_NAME_INFO)) = []u8{0} ** (size + windows.MAX_PATH);
87
88	if (windows.GetFileInformationByHandleEx(
89	handle,
90	windows.FileNameInfo,
91	@ptrCast(*c_void, &name_info_bytes[0]),
92	@intCast(u32, name_info_bytes.len),
93	) == 0) {
94	return false;
95	}
96
97	const name_info = @ptrCast(*const windows.FILE_NAME_INFO, &name_info_bytes[0]);
98	const name_bytes = name_info_bytes[size .. size + usize(name_info.FileNameLength)];
99	const name_wide = @bytesToSlice(u16, name_bytes);
100	return mem.indexOf(u16, name_wide, []u16{ 'm', 's', 'y', 's', '-' }) != null or
101	mem.indexOf(u16, name_wide, []u16{ '-', 'p', 't', 'y' }) != null;
102	}
103
104	pub const OpenError = error{
105	SharingViolation,
106	PathAlreadyExists,
107
108	/// When any of the path components can not be found or the file component can not
109	/// be found. Some operating systems distinguish between path components not found and
110	/// file components not found, but they are collapsed into FileNotFound to gain
111	/// consistency across operating systems.
112	FileNotFound,
113
114	AccessDenied,
115	PipeBusy,
116	NameTooLong,
117
118	/// On Windows, file paths must be valid Unicode.
119	InvalidUtf8,
120
121	/// On Windows, file paths cannot contain these characters:
122	/// '/', '*', '?', '"', '<', '>', '\|'
123	BadPathName,
124
125	/// See https://github.com/ziglang/zig/issues/1396
126	Unexpected,
127	};
128
129	pub fn windowsOpenW(
130	file_path_w: [*]const u16,
131	desired_access: windows.DWORD,
132	share_mode: windows.DWORD,
133	creation_disposition: windows.DWORD,
134	flags_and_attrs: windows.DWORD,
135	) OpenError!windows.HANDLE {
136	const result = windows.CreateFileW(file_path_w, desired_access, share_mode, null, creation_disposition, flags_and_attrs, null);
137
138	if (result == windows.INVALID_HANDLE_VALUE) {
139	const err = windows.GetLastError();
140	switch (err) {
141	windows.ERROR.SHARING_VIOLATION => return OpenError.SharingViolation,
142	windows.ERROR.ALREADY_EXISTS => return OpenError.PathAlreadyExists,
143	windows.ERROR.FILE_EXISTS => return OpenError.PathAlreadyExists,
144	windows.ERROR.FILE_NOT_FOUND => return OpenError.FileNotFound,
145	windows.ERROR.PATH_NOT_FOUND => return OpenError.FileNotFound,
146	windows.ERROR.ACCESS_DENIED => return OpenError.AccessDenied,
147	windows.ERROR.PIPE_BUSY => return OpenError.PipeBusy,
148	else => return os.unexpectedErrorWindows(err),
149	}
150	}
151
152	return result;
153	}
154
155	pub fn windowsOpen(
156	file_path: []const u8,
157	desired_access: windows.DWORD,
158	share_mode: windows.DWORD,
159	creation_disposition: windows.DWORD,
160	flags_and_attrs: windows.DWORD,
161	) OpenError!windows.HANDLE {
162	const file_path_w = try sliceToPrefixedFileW(file_path);
163	return windowsOpenW(&file_path_w, desired_access, share_mode, creation_disposition, flags_and_attrs);
164	}
165
166	/// Caller must free result.
167	pub fn createWindowsEnvBlock(allocator: mem.Allocator, env_map: const BufMap) ![]u16 {
168	// count bytes needed
169	const max_chars_needed = x: {
170	var max_chars_needed: usize = 4; // 4 for the final 4 null bytes
171	var it = env_map.iterator();
172	while (it.next()) \|pair\| {
173	// +1 for '='
174	// +1 for null byte
175	max_chars_needed += pair.key.len + pair.value.len + 2;
176	}
177	break :x max_chars_needed;
178	};
179	const result = try allocator.alloc(u16, max_chars_needed);
180	errdefer allocator.free(result);
181
182	var it = env_map.iterator();
183	var i: usize = 0;
184	while (it.next()) \|pair\| {
185	i += try unicode.utf8ToUtf16Le(result[i..], pair.key);
186	result[i] = '=';
187	i += 1;
188	i += try unicode.utf8ToUtf16Le(result[i..], pair.value);
189	result[i] = 0;
190	i += 1;
191	}
192	result[i] = 0;
193	i += 1;
194	result[i] = 0;
195	i += 1;
196	result[i] = 0;
197	i += 1;
198	result[i] = 0;
199	i += 1;
200	return allocator.shrink(result, i);
201	}
202
203	pub fn windowsFindFirstFile(
204	dir_path: []const u8,
205	find_file_data: *windows.WIN32_FIND_DATAW,
206	) !windows.HANDLE {
207	const dir_path_w = try sliceToPrefixedSuffixedFileW(dir_path, []u16{ '\\', '*', 0 });
208	const handle = windows.FindFirstFileW(&dir_path_w, find_file_data);
209
210	if (handle == windows.INVALID_HANDLE_VALUE) {
211	const err = windows.GetLastError();
212	switch (err) {
213	windows.ERROR.FILE_NOT_FOUND => return error.FileNotFound,
214	windows.ERROR.PATH_NOT_FOUND => return error.FileNotFound,
215	else => return os.unexpectedErrorWindows(err),
216	}
217	}
218
219	return handle;
220	}
221
222	/// Returns `true` if there was another file, `false` otherwise.
223	pub fn windowsFindNextFile(handle: windows.HANDLE, find_file_data: *windows.WIN32_FIND_DATAW) !bool {
224	if (windows.FindNextFileW(handle, find_file_data) == 0) {
225	const err = windows.GetLastError();
226	return switch (err) {
227	windows.ERROR.NO_MORE_FILES => false,
228	else => os.unexpectedErrorWindows(err),
229	};
230	}
231	return true;
232	}
233
234	pub const WindowsCreateIoCompletionPortError = error{Unexpected};
235
236	pub fn windowsCreateIoCompletionPort(file_handle: windows.HANDLE, existing_completion_port: ?windows.HANDLE, completion_key: usize, concurrent_thread_count: windows.DWORD) !windows.HANDLE {
237	const handle = windows.CreateIoCompletionPort(file_handle, existing_completion_port, completion_key, concurrent_thread_count) orelse {
238	const err = windows.GetLastError();
239	switch (err) {
240	windows.ERROR.INVALID_PARAMETER => unreachable,
241	else => return os.unexpectedErrorWindows(err),
242	}
243	};
244	return handle;
245	}
246
247	pub const WindowsPostQueuedCompletionStatusError = error{Unexpected};
248
249	pub fn windowsPostQueuedCompletionStatus(completion_port: windows.HANDLE, bytes_transferred_count: windows.DWORD, completion_key: usize, lpOverlapped: ?*windows.OVERLAPPED) WindowsPostQueuedCompletionStatusError!void {
250	if (windows.PostQueuedCompletionStatus(completion_port, bytes_transferred_count, completion_key, lpOverlapped) == 0) {
251	const err = windows.GetLastError();
252	switch (err) {
253	else => return os.unexpectedErrorWindows(err),
254	}
255	}
256	}
257
258	pub const WindowsWaitResult = enum {
259	Normal,
260	Aborted,
261	Cancelled,
262	EOF,
263	};
264
265	pub fn windowsGetQueuedCompletionStatus(completion_port: windows.HANDLE, bytes_transferred_count: windows.DWORD, lpCompletionKey: usize, lpOverlapped: ?windows.OVERLAPPED, dwMilliseconds: windows.DWORD) WindowsWaitResult {
266	if (windows.GetQueuedCompletionStatus(completion_port, bytes_transferred_count, lpCompletionKey, lpOverlapped, dwMilliseconds) == windows.FALSE) {
267	const err = windows.GetLastError();
268	switch (err) {
269	windows.ERROR.ABANDONED_WAIT_0 => return WindowsWaitResult.Aborted,
270	windows.ERROR.OPERATION_ABORTED => return WindowsWaitResult.Cancelled,
271	windows.ERROR.HANDLE_EOF => return WindowsWaitResult.EOF,
272	else => {
273	if (std.debug.runtime_safety) {
274	std.debug.panic("unexpected error: {}\n", err);
275	}
276	},
277	}
278	}
279	return WindowsWaitResult.Normal;
280	}
281
282	pub fn cStrToPrefixedFileW(s: [*]const u8) ![PATH_MAX_WIDE + 1]u16 {
283	return sliceToPrefixedFileW(mem.toSliceConst(u8, s));
284	}
285
286	pub fn sliceToPrefixedFileW(s: []const u8) ![PATH_MAX_WIDE + 1]u16 {
287	return sliceToPrefixedSuffixedFileW(s, []u16{0});
288	}
289
290	pub fn sliceToPrefixedSuffixedFileW(s: []const u8, comptime suffix: []const u16) ![PATH_MAX_WIDE + suffix.len]u16 {
291	// TODO well defined copy elision
292	var result: [PATH_MAX_WIDE + suffix.len]u16 = undefined;
293
294	// > File I/O functions in the Windows API convert "/" to "\" as part of
295	// > converting the name to an NT-style name, except when using the "\\?\"
296	// > prefix as detailed in the following sections.
297	// from https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#maximum-path-length-limitation
298	// Because we want the larger maximum path length for absolute paths, we
299	// disallow forward slashes in zig std lib file functions on Windows.
300	for (s) \|byte\| {
301	switch (byte) {
302	'/', '*', '?', '"', '<', '>', '\|' => return error.BadPathName,
303	else => {},
304	}
305	}
306	const start_index = if (mem.startsWith(u8, s, "\\\\") or !os.path.isAbsolute(s)) 0 else blk: {
307	const prefix = []u16{ '\\', '\\', '?', '\\' };
308	mem.copy(u16, result[0..], prefix);
309	break :blk prefix.len;
310	};
311	const end_index = start_index + try std.unicode.utf8ToUtf16Le(result[start_index..], s);
312	assert(end_index <= result.len);
313	if (end_index + suffix.len > result.len) return error.NameTooLong;
314	mem.copy(u16, result[end_index..], suffix);
315	return result;
316	}

std/os/zen.zig+1-1

...	@@ -80,7 +80,7 @@ pub const STDOUT_FILENO = 1;	...	@@ -80,7 +80,7 @@ pub const STDOUT_FILENO = 1;
80	pub const STDERR_FILENO = 2;	80	pub const STDERR_FILENO = 2;
81		81
82	// FIXME: let's borrow Linux's error numbers for now.	82	// FIXME: let's borrow Linux's error numbers for now.
83	use @import("linux/errno.zig");	83	use @import("bits/linux/errno.zig");
84	// Get the errno from a syscall return value, or 0 for no error.	84	// Get the errno from a syscall return value, or 0 for no error.
85	pub fn getErrno(r: usize) usize {	85	pub fn getErrno(r: usize) usize {
86	const signed_r = @bitCast(isize, r);	86	const signed_r = @bitCast(isize, r);

std/packed_int_array.zig+3-3

...	@@ -619,7 +619,7 @@ test "PackedIntArray at end of available memory" {	...	@@ -619,7 +619,7 @@ test "PackedIntArray at end of available memory" {
619	const PackedArray = PackedIntArray(u3, 8);	619	const PackedArray = PackedIntArray(u3, 8);
620		620
621	const Padded = struct {	621	const Padded = struct {
622	_: [std.os.page_size - @sizeOf(PackedArray)]u8,	622	_: [std.mem.page_size - @sizeOf(PackedArray)]u8,
623	p: PackedArray,	623	p: PackedArray,
624	};	624	};
625		625
...	@@ -641,9 +641,9 @@ test "PackedIntSlice at end of available memory" {	...	@@ -641,9 +641,9 @@ test "PackedIntSlice at end of available memory" {
641	var da = std.heap.DirectAllocator.init();	641	var da = std.heap.DirectAllocator.init();
642	const allocator = &da.allocator;	642	const allocator = &da.allocator;
643		643
644	var page = try allocator.alloc(u8, std.os.page_size);	644	var page = try allocator.alloc(u8, std.mem.page_size);
645	defer allocator.free(page);	645	defer allocator.free(page);
646		646
647	var p = PackedSlice.init(page[std.os.page_size - 2 ..], 1);	647	var p = PackedSlice.init(page[std.mem.page_size - 2 ..], 1);
648	p.set(0, std.math.maxInt(u11));	648	p.set(0, std.math.maxInt(u11));
649	}	649	}

std/pdb.zig+8-8

...	@@ -6,6 +6,7 @@ const mem = std.mem;	...	@@ -6,6 +6,7 @@ const mem = std.mem;
6	const os = std.os;	6	const os = std.os;
7	const warn = std.debug.warn;	7	const warn = std.debug.warn;
8	const coff = std.coff;	8	const coff = std.coff;
		9	const File = std.fs.File;
9		10
10	const ArrayList = std.ArrayList;	11	const ArrayList = std.ArrayList;
11		12
...	@@ -459,7 +460,7 @@ pub const PDBStringTableHeader = packed struct {	...	@@ -459,7 +460,7 @@ pub const PDBStringTableHeader = packed struct {
459	};	460	};
460		461
461	pub const Pdb = struct {	462	pub const Pdb = struct {
462	in_file: os.File,	463	in_file: File,
463	allocator: *mem.Allocator,	464	allocator: *mem.Allocator,
464	coff: *coff.Coff,	465	coff: *coff.Coff,
465	string_table: *MsfStream,	466	string_table: *MsfStream,
...	@@ -468,7 +469,7 @@ pub const Pdb = struct {	...	@@ -468,7 +469,7 @@ pub const Pdb = struct {
468	msf: Msf,	469	msf: Msf,
469		470
470	pub fn openFile(self: Pdb, coff_ptr: coff.Coff, file_name: []u8) !void {	471	pub fn openFile(self: Pdb, coff_ptr: coff.Coff, file_name: []u8) !void {
471	self.in_file = try os.File.openRead(file_name);	472	self.in_file = try File.openRead(file_name);
472	self.allocator = coff_ptr.allocator;	473	self.allocator = coff_ptr.allocator;
473	self.coff = coff_ptr;	474	self.coff = coff_ptr;
474		475
...	@@ -492,7 +493,7 @@ const Msf = struct {	...	@@ -492,7 +493,7 @@ const Msf = struct {
492	directory: MsfStream,	493	directory: MsfStream,
493	streams: []MsfStream,	494	streams: []MsfStream,
494		495
495	fn openFile(self: Msf, allocator: mem.Allocator, file: os.File) !void {	496	fn openFile(self: Msf, allocator: mem.Allocator, file: File) !void {
496	var file_stream = file.inStream();	497	var file_stream = file.inStream();
497	const in = &file_stream.stream;	498	const in = &file_stream.stream;
498		499
...	@@ -587,7 +588,7 @@ const SuperBlock = packed struct {	...	@@ -587,7 +588,7 @@ const SuperBlock = packed struct {
587	};	588	};
588		589
589	const MsfStream = struct {	590	const MsfStream = struct {
590	in_file: os.File,	591	in_file: File,
591	pos: u64,	592	pos: u64,
592	blocks: []u32,	593	blocks: []u32,
593	block_size: u32,	594	block_size: u32,
...	@@ -598,7 +599,7 @@ const MsfStream = struct {	...	@@ -598,7 +599,7 @@ const MsfStream = struct {
598	pub const Error = @typeOf(read).ReturnType.ErrorSet;	599	pub const Error = @typeOf(read).ReturnType.ErrorSet;
599	pub const Stream = io.InStream(Error);	600	pub const Stream = io.InStream(Error);
600		601
601	fn init(block_size: u32, block_count: u32, pos: u64, file: os.File, allocator: *mem.Allocator) !MsfStream {	602	fn init(block_size: u32, block_count: u32, pos: u64, file: File, allocator: *mem.Allocator) !MsfStream {
602	var stream = MsfStream{	603	var stream = MsfStream{
603	.in_file = file,	604	.in_file = file,
604	.pos = 0,	605	.pos = 0,
...	@@ -660,9 +661,8 @@ const MsfStream = struct {	...	@@ -660,9 +661,8 @@ const MsfStream = struct {
660	return size;	661	return size;
661	}	662	}
662		663
663	// XXX: The `len` parameter should be signed	664	fn seekBy(self: *MsfStream, len: i64) !void {
664	fn seekForward(self: *MsfStream, len: u64) !void {	665	self.pos = @intCast(u64, @intCast(i64, self.pos) + len);
665	self.pos += len;
666	if (self.pos >= self.blocks.len * self.block_size)	666	if (self.pos >= self.blocks.len * self.block_size)
667	return error.EOF;	667	return error.EOF;
668	}	668	}

std/process.zig created+617

...	@@ -0,0 +1,617 @@
1	const builtin = @import("builtin");
2	const std = @import("std.zig");
3	const os = std.os;
4	const fs = std.fs;
5	const BufMap = std.BufMap;
6	const Buffer = std.Buffer;
7	const mem = std.mem;
8	const math = std.math;
9	const Allocator = mem.Allocator;
10	const assert = std.debug.assert;
11	const testing = std.testing;
12
13	pub const abort = os.abort;
14	pub const exit = os.exit;
15	pub const changeCurDir = os.chdir;
16	pub const changeCurDirC = os.chdirC;
17
18	/// The result is a slice of `out_buffer`, from index `0`.
19	pub fn getCwd(out_buffer: *[fs.MAX_PATH_BYTES]u8) ![]u8 {
20	return os.getcwd(out_buffer);
21	}
22
23	/// Caller must free the returned memory.
24	pub fn getCwdAlloc(allocator: *Allocator) ![]u8 {
25	var buf: [fs.MAX_PATH_BYTES]u8 = undefined;
26	return mem.dupe(allocator, u8, try os.getcwd(&buf));
27	}
28
29	test "getCwdAlloc" {
30	// at least call it so it gets compiled
31	var buf: [1000]u8 = undefined;
32	const allocator = &std.heap.FixedBufferAllocator.init(&buf).allocator;
33	_ = getCwdAlloc(allocator) catch undefined;
34	}
35
36	/// Caller must free result when done.
37	/// TODO make this go through libc when we have it
38	pub fn getEnvMap(allocator: *Allocator) !BufMap {
39	var result = BufMap.init(allocator);
40	errdefer result.deinit();
41
42	if (os.windows.is_the_target) {
43	const ptr = try os.windows.GetEnvironmentStringsW();
44	defer os.windows.FreeEnvironmentStringsW(ptr);
45
46	var i: usize = 0;
47	while (true) {
48	if (ptr[i] == 0) return result;
49
50	const key_start = i;
51
52	while (ptr[i] != 0 and ptr[i] != '=') : (i += 1) {}
53	const key_w = ptr[key_start..i];
54	const key = try std.unicode.utf16leToUtf8Alloc(allocator, key_w);
55	errdefer allocator.free(key);
56
57	if (ptr[i] == '=') i += 1;
58
59	const value_start = i;
60	while (ptr[i] != 0) : (i += 1) {}
61	const value_w = ptr[value_start..i];
62	const value = try std.unicode.utf16leToUtf8Alloc(allocator, value_w);
63	errdefer allocator.free(value);
64
65	i += 1; // skip over null byte
66
67	try result.setMove(key, value);
68	}
69	} else if (builtin.os == .wasi) {
70	var environ_count: usize = undefined;
71	var environ_buf_size: usize = undefined;
72
73	const environ_sizes_get_ret = os.wasi.environ_sizes_get(&environ_count, &environ_buf_size);
74	if (environ_sizes_get_ret != os.wasi.ESUCCESS) {
75	return os.unexpectedErrno(environ_sizes_get_ret);
76	}
77
78	// TODO: Verify that the documentation is incorrect
79	// https://github.com/WebAssembly/WASI/issues/27
80	var environ = try allocator.alloc(?[*]u8, environ_count + 1);
81	defer allocator.free(environ);
82	var environ_buf = try std.heap.wasm_allocator.alloc(u8, environ_buf_size);
83	defer allocator.free(environ_buf);
84
85	const environ_get_ret = os.wasi.environ_get(environ.ptr, environ_buf.ptr);
86	if (environ_get_ret != os.wasi.ESUCCESS) {
87	return os.unexpectedErrno(environ_get_ret);
88	}
89
90	for (environ) \|env\| {
91	if (env) \|ptr\| {
92	const pair = mem.toSlice(u8, ptr);
93	var parts = mem.separate(pair, "=");
94	const key = parts.next().?;
95	const value = parts.next().?;
96	try result.set(key, value);
97	}
98	}
99	return result;
100	} else {
101	for (os.environ) \|ptr\| {
102	var line_i: usize = 0;
103	while (ptr[line_i] != 0 and ptr[line_i] != '=') : (line_i += 1) {}
104	const key = ptr[0..line_i];
105
106	var end_i: usize = line_i;
107	while (ptr[end_i] != 0) : (end_i += 1) {}
108	const value = ptr[line_i + 1 .. end_i];
109
110	try result.set(key, value);
111	}
112	return result;
113	}
114	}
115
116	test "os.getEnvMap" {
117	var env = try getEnvMap(std.debug.global_allocator);
118	defer env.deinit();
119	}
120
121	pub const GetEnvVarOwnedError = error{
122	OutOfMemory,
123	EnvironmentVariableNotFound,
124
125	/// See https://github.com/ziglang/zig/issues/1774
126	InvalidUtf8,
127	};
128
129	/// Caller must free returned memory.
130	/// TODO make this go through libc when we have it
131	pub fn getEnvVarOwned(allocator: *mem.Allocator, key: []const u8) GetEnvVarOwnedError![]u8 {
132	if (os.windows.is_the_target) {
133	const key_with_null = try std.unicode.utf8ToUtf16LeWithNull(allocator, key);
134	defer allocator.free(key_with_null);
135
136	var buf = try allocator.alloc(u16, 256);
137	defer allocator.free(buf);
138
139	while (true) {
140	const windows_buf_len = math.cast(os.windows.DWORD, buf.len) catch return error.OutOfMemory;
141	const result = os.windows.GetEnvironmentVariableW(
142	key_with_null.ptr,
143	buf.ptr,
144	windows_buf_len,
145	) catch \|err\| switch (err) {
146	error.Unexpected => return error.EnvironmentVariableNotFound,
147	else => \|e\| return e,
148	};
149
150	if (result > buf.len) {
151	buf = try allocator.realloc(buf, result);
152	continue;
153	}
154
155	return std.unicode.utf16leToUtf8Alloc(allocator, buf) catch \|err\| switch (err) {
156	error.DanglingSurrogateHalf => return error.InvalidUtf8,
157	error.ExpectedSecondSurrogateHalf => return error.InvalidUtf8,
158	error.UnexpectedSecondSurrogateHalf => return error.InvalidUtf8,
159	else => \|e\| return e,
160	};
161	}
162	} else {
163	const result = os.getenv(key) orelse return error.EnvironmentVariableNotFound;
164	return mem.dupe(allocator, u8, result);
165	}
166	}
167
168	test "os.getEnvVarOwned" {
169	var ga = std.debug.global_allocator;
170	testing.expectError(error.EnvironmentVariableNotFound, getEnvVarOwned(ga, "BADENV"));
171	}
172
173	pub const ArgIteratorPosix = struct {
174	index: usize,
175	count: usize,
176
177	pub fn init() ArgIteratorPosix {
178	return ArgIteratorPosix{
179	.index = 0,
180	.count = os.argv.len,
181	};
182	}
183
184	pub fn next(self: *ArgIteratorPosix) ?[]const u8 {
185	if (self.index == self.count) return null;
186
187	const s = os.argv[self.index];
188	self.index += 1;
189	return mem.toSlice(u8, s);
190	}
191
192	pub fn skip(self: *ArgIteratorPosix) bool {
193	if (self.index == self.count) return false;
194
195	self.index += 1;
196	return true;
197	}
198	};
199
200	pub const ArgIteratorWindows = struct {
201	index: usize,
202	cmd_line: [*]const u8,
203	in_quote: bool,
204	quote_count: usize,
205	seen_quote_count: usize,
206
207	pub const NextError = error{OutOfMemory};
208
209	pub fn init() ArgIteratorWindows {
210	return initWithCmdLine(os.windows.kernel32.GetCommandLineA());
211	}
212
213	pub fn initWithCmdLine(cmd_line: [*]const u8) ArgIteratorWindows {
214	return ArgIteratorWindows{
215	.index = 0,
216	.cmd_line = cmd_line,
217	.in_quote = false,
218	.quote_count = countQuotes(cmd_line),
219	.seen_quote_count = 0,
220	};
221	}
222
223	/// You must free the returned memory when done.
224	pub fn next(self: ArgIteratorWindows, allocator: Allocator) ?(NextError![]u8) {
225	// march forward over whitespace
226	while (true) : (self.index += 1) {
227	const byte = self.cmd_line[self.index];
228	switch (byte) {
229	0 => return null,
230	' ', '\t' => continue,
231	else => break,
232	}
233	}
234
235	return self.internalNext(allocator);
236	}
237
238	pub fn skip(self: *ArgIteratorWindows) bool {
239	// march forward over whitespace
240	while (true) : (self.index += 1) {
241	const byte = self.cmd_line[self.index];
242	switch (byte) {
243	0 => return false,
244	' ', '\t' => continue,
245	else => break,
246	}
247	}
248
249	var backslash_count: usize = 0;
250	while (true) : (self.index += 1) {
251	const byte = self.cmd_line[self.index];
252	switch (byte) {
253	0 => return true,
254	'"' => {
255	const quote_is_real = backslash_count % 2 == 0;
256	if (quote_is_real) {
257	self.seen_quote_count += 1;
258	}
259	},
260	'\\' => {
261	backslash_count += 1;
262	},
263	' ', '\t' => {
264	if (self.seen_quote_count % 2 == 0 or self.seen_quote_count == self.quote_count) {
265	return true;
266	}
267	backslash_count = 0;
268	},
269	else => {
270	backslash_count = 0;
271	continue;
272	},
273	}
274	}
275	}
276
277	fn internalNext(self: ArgIteratorWindows, allocator: Allocator) NextError![]u8 {
278	var buf = try Buffer.initSize(allocator, 0);
279	defer buf.deinit();
280
281	var backslash_count: usize = 0;
282	while (true) : (self.index += 1) {
283	const byte = self.cmd_line[self.index];
284	switch (byte) {
285	0 => return buf.toOwnedSlice(),
286	'"' => {
287	const quote_is_real = backslash_count % 2 == 0;
288	try self.emitBackslashes(&buf, backslash_count / 2);
289	backslash_count = 0;
290
291	if (quote_is_real) {
292	self.seen_quote_count += 1;
293	if (self.seen_quote_count == self.quote_count and self.seen_quote_count % 2 == 1) {
294	try buf.appendByte('"');
295	}
296	} else {
297	try buf.appendByte('"');
298	}
299	},
300	'\\' => {
301	backslash_count += 1;
302	},
303	' ', '\t' => {
304	try self.emitBackslashes(&buf, backslash_count);
305	backslash_count = 0;
306	if (self.seen_quote_count % 2 == 1 and self.seen_quote_count != self.quote_count) {
307	try buf.appendByte(byte);
308	} else {
309	return buf.toOwnedSlice();
310	}
311	},
312	else => {
313	try self.emitBackslashes(&buf, backslash_count);
314	backslash_count = 0;
315	try buf.appendByte(byte);
316	},
317	}
318	}
319	}
320
321	fn emitBackslashes(self: ArgIteratorWindows, buf: Buffer, emit_count: usize) !void {
322	var i: usize = 0;
323	while (i < emit_count) : (i += 1) {
324	try buf.appendByte('\\');
325	}
326	}
327
328	fn countQuotes(cmd_line: [*]const u8) usize {
329	var result: usize = 0;
330	var backslash_count: usize = 0;
331	var index: usize = 0;
332	while (true) : (index += 1) {
333	const byte = cmd_line[index];
334	switch (byte) {
335	0 => return result,
336	'\\' => backslash_count += 1,
337	'"' => {
338	result += 1 - (backslash_count % 2);
339	backslash_count = 0;
340	},
341	else => {
342	backslash_count = 0;
343	},
344	}
345	}
346	}
347	};
348
349	pub const ArgIterator = struct {
350	const InnerType = if (builtin.os == .windows) ArgIteratorWindows else ArgIteratorPosix;
351
352	inner: InnerType,
353
354	pub fn init() ArgIterator {
355	if (builtin.os == .wasi) {
356	// TODO: Figure out a compatible interface accomodating WASI
357	@compileError("ArgIterator is not yet supported in WASI. Use argsAlloc and argsFree instead.");
358	}
359
360	return ArgIterator{ .inner = InnerType.init() };
361	}
362
363	pub const NextError = ArgIteratorWindows.NextError;
364
365	/// You must free the returned memory when done.
366	pub fn next(self: ArgIterator, allocator: Allocator) ?(NextError![]u8) {
367	if (builtin.os == .windows) {
368	return self.inner.next(allocator);
369	} else {
370	return mem.dupe(allocator, u8, self.inner.next() orelse return null);
371	}
372	}
373
374	/// If you only are targeting posix you can call this and not need an allocator.
375	pub fn nextPosix(self: *ArgIterator) ?[]const u8 {
376	return self.inner.next();
377	}
378
379	/// Parse past 1 argument without capturing it.
380	/// Returns `true` if skipped an arg, `false` if we are at the end.
381	pub fn skip(self: *ArgIterator) bool {
382	return self.inner.skip();
383	}
384	};
385
386	pub fn args() ArgIterator {
387	return ArgIterator.init();
388	}
389
390	/// Caller must call argsFree on result.
391	pub fn argsAlloc(allocator: *mem.Allocator) ![]const []u8 {
392	if (builtin.os == .wasi) {
393	var count: usize = undefined;
394	var buf_size: usize = undefined;
395
396	const args_sizes_get_ret = os.wasi.args_sizes_get(&count, &buf_size);
397	if (args_sizes_get_ret != os.wasi.ESUCCESS) {
398	return os.unexpectedErrno(args_sizes_get_ret);
399	}
400
401	var argv = try allocator.alloc([*]u8, count);
402	defer allocator.free(argv);
403
404	var argv_buf = try allocator.alloc(u8, buf_size);
405	const args_get_ret = os.wasi.args_get(argv.ptr, argv_buf.ptr);
406	if (args_get_ret != os.wasi.ESUCCESS) {
407	return os.unexpectedErrno(args_get_ret);
408	}
409
410	var result_slice = try allocator.alloc([]u8, count);
411
412	var i: usize = 0;
413	while (i < count) : (i += 1) {
414	result_slice[i] = mem.toSlice(u8, argv[i]);
415	}
416
417	return result_slice;
418	}
419
420	// TODO refactor to only make 1 allocation.
421	var it = args();
422	var contents = try Buffer.initSize(allocator, 0);
423	defer contents.deinit();
424
425	var slice_list = std.ArrayList(usize).init(allocator);
426	defer slice_list.deinit();
427
428	while (it.next(allocator)) \|arg_or_err\| {
429	const arg = try arg_or_err;
430	defer allocator.free(arg);
431	try contents.append(arg);
432	try slice_list.append(arg.len);
433	}
434
435	const contents_slice = contents.toSliceConst();
436	const slice_sizes = slice_list.toSliceConst();
437	const slice_list_bytes = try math.mul(usize, @sizeOf([]u8), slice_sizes.len);
438	const total_bytes = try math.add(usize, slice_list_bytes, contents_slice.len);
439	const buf = try allocator.alignedAlloc(u8, @alignOf([]u8), total_bytes);
440	errdefer allocator.free(buf);
441
442	const result_slice_list = @bytesToSlice([]u8, buf[0..slice_list_bytes]);
443	const result_contents = buf[slice_list_bytes..];
444	mem.copy(u8, result_contents, contents_slice);
445
446	var contents_index: usize = 0;
447	for (slice_sizes) \|len, i\| {
448	const new_index = contents_index + len;
449	result_slice_list[i] = result_contents[contents_index..new_index];
450	contents_index = new_index;
451	}
452
453	return result_slice_list;
454	}
455
456	pub fn argsFree(allocator: *mem.Allocator, args_alloc: []const []u8) void {
457	if (builtin.os == .wasi) {
458	const last_item = args_alloc[args_alloc.len - 1];
459	const last_byte_addr = @ptrToInt(last_item.ptr) + last_item.len + 1; // null terminated
460	const first_item_ptr = args_alloc[0].ptr;
461	const len = last_byte_addr - @ptrToInt(first_item_ptr);
462	allocator.free(first_item_ptr[0..len]);
463
464	return allocator.free(args_alloc);
465	}
466
467	var total_bytes: usize = 0;
468	for (args_alloc) \|arg\| {
469	total_bytes += @sizeOf([]u8) + arg.len;
470	}
471	const unaligned_allocated_buf = @ptrCast([*]const u8, args_alloc.ptr)[0..total_bytes];
472	const aligned_allocated_buf = @alignCast(@alignOf([]u8), unaligned_allocated_buf);
473	return allocator.free(aligned_allocated_buf);
474	}
475
476	test "windows arg parsing" {
477	testWindowsCmdLine(c"a b\tc d", [][]const u8{ "a", "b", "c", "d" });
478	testWindowsCmdLine(c"\"abc\" d e", [][]const u8{ "abc", "d", "e" });
479	testWindowsCmdLine(c"a\\\\\\b d\"e f\"g h", [][]const u8{ "a\\\\\\b", "de fg", "h" });
480	testWindowsCmdLine(c"a\\\\\\\"b c d", [][]const u8{ "a\\\"b", "c", "d" });
481	testWindowsCmdLine(c"a\\\\\\\\\"b c\" d e", [][]const u8{ "a\\\\b c", "d", "e" });
482	testWindowsCmdLine(c"a b\tc \"d f", [][]const u8{ "a", "b", "c", "\"d", "f" });
483
484	testWindowsCmdLine(c"\".\\..\\zig-cache\\build\" \"bin\\zig.exe\" \".\\..\" \".\\..\\zig-cache\" \"--help\"", [][]const u8{
485	".\\..\\zig-cache\\build",
486	"bin\\zig.exe",
487	".\\..",
488	".\\..\\zig-cache",
489	"--help",
490	});
491	}
492
493	fn testWindowsCmdLine(input_cmd_line: [*]const u8, expected_args: []const []const u8) void {
494	var it = ArgIteratorWindows.initWithCmdLine(input_cmd_line);
495	for (expected_args) \|expected_arg\| {
496	const arg = it.next(std.debug.global_allocator).? catch unreachable;
497	testing.expectEqualSlices(u8, expected_arg, arg);
498	}
499	testing.expect(it.next(std.debug.global_allocator) == null);
500	}
501
502	pub const UserInfo = struct {
503	uid: u32,
504	gid: u32,
505	};
506
507	/// POSIX function which gets a uid from username.
508	pub fn getUserInfo(name: []const u8) !UserInfo {
509	return switch (builtin.os) {
510	.linux, .macosx, .watchos, .tvos, .ios, .freebsd, .netbsd => posixGetUserInfo(name),
511	else => @compileError("Unsupported OS"),
512	};
513	}
514
515	/// TODO this reads /etc/passwd. But sometimes the user/id mapping is in something else
516	/// like NIS, AD, etc. See `man nss` or look at an strace for `id myuser`.
517	pub fn posixGetUserInfo(name: []const u8) !UserInfo {
518	var in_stream = try io.InStream.open("/etc/passwd", null);
519	defer in_stream.close();
520
521	const State = enum {
522	Start,
523	WaitForNextLine,
524	SkipPassword,
525	ReadUserId,
526	ReadGroupId,
527	};
528
529	var buf: [std.mem.page_size]u8 = undefined;
530	var name_index: usize = 0;
531	var state = State.Start;
532	var uid: u32 = 0;
533	var gid: u32 = 0;
534
535	while (true) {
536	const amt_read = try in_stream.read(buf[0..]);
537	for (buf[0..amt_read]) \|byte\| {
538	switch (state) {
539	.Start => switch (byte) {
540	':' => {
541	state = if (name_index == name.len) State.SkipPassword else State.WaitForNextLine;
542	},
543	'\n' => return error.CorruptPasswordFile,
544	else => {
545	if (name_index == name.len or name[name_index] != byte) {
546	state = .WaitForNextLine;
547	}
548	name_index += 1;
549	},
550	},
551	.WaitForNextLine => switch (byte) {
552	'\n' => {
553	name_index = 0;
554	state = .Start;
555	},
556	else => continue,
557	},
558	.SkipPassword => switch (byte) {
559	'\n' => return error.CorruptPasswordFile,
560	':' => {
561	state = .ReadUserId;
562	},
563	else => continue,
564	},
565	.ReadUserId => switch (byte) {
566	':' => {
567	state = .ReadGroupId;
568	},
569	'\n' => return error.CorruptPasswordFile,
570	else => {
571	const digit = switch (byte) {
572	'0'...'9' => byte - '0',
573	else => return error.CorruptPasswordFile,
574	};
575	if (@mulWithOverflow(u32, uid, 10, *uid)) return error.CorruptPasswordFile;
576	if (@addWithOverflow(u32, uid, digit, *uid)) return error.CorruptPasswordFile;
577	},
578	},
579	.ReadGroupId => switch (byte) {
580	'\n', ':' => {
581	return UserInfo{
582	.uid = uid,
583	.gid = gid,
584	};
585	},
586	else => {
587	const digit = switch (byte) {
588	'0'...'9' => byte - '0',
589	else => return error.CorruptPasswordFile,
590	};
591	if (@mulWithOverflow(u32, gid, 10, *gid)) return error.CorruptPasswordFile;
592	if (@addWithOverflow(u32, gid, digit, *gid)) return error.CorruptPasswordFile;
593	},
594	},
595	}
596	}
597	if (amt_read < buf.len) return error.UserNotFound;
598	}
599	}
600
601	pub fn getBaseAddress() usize {
602	switch (builtin.os) {
603	.linux => {
604	const base = os.system.getauxval(std.elf.AT_BASE);
605	if (base != 0) {
606	return base;
607	}
608	const phdr = os.system.getauxval(std.elf.AT_PHDR);
609	return phdr - @sizeOf(std.elf.Ehdr);
610	},
611	.macosx, .freebsd, .netbsd => {
612	return @ptrToInt(&std.c._mh_execute_header);
613	},
614	.windows => return @ptrToInt(os.windows.kernel32.GetModuleHandleW(null)),
615	else => @compileError("Unsupported OS"),
616	}
617	}

std/rand.zig+3-3

...	@@ -1,10 +1,10 @@	...	@@ -1,10 +1,10 @@
1	// The engines provided here should be initialized from an external source. For now, getRandomBytes	1	// The engines provided here should be initialized from an external source. For now, randomBytes
2	// from the os package is the most suitable. Be sure to use a CSPRNG when required, otherwise using	2	// from the crypto package is the most suitable. Be sure to use a CSPRNG when required, otherwise using
3	// a normal PRNG will be faster and use substantially less stack space.	3	// a normal PRNG will be faster and use substantially less stack space.
4	//	4	//
5	// ```	5	// ```
6	// var buf: [8]u8 = undefined;	6	// var buf: [8]u8 = undefined;
7	// try std.os.getRandomBytes(buf[0..]);	7	// try std.crypto.randomBytes(buf[0..]);
8	// const seed = mem.readIntSliceLittle(u64, buf[0..8]);	8	// const seed = mem.readIntSliceLittle(u64, buf[0..8]);
9	//	9	//
10	// var r = DefaultPrng.init(seed);	10	// var r = DefaultPrng.init(seed);

std/special/bootstrap.zig+6-6

std/special/build_runner.zig+7-6

 @@ -3,14 +3,15 @@ const std = @import("std");
 const builtin = @import("builtin");
 const io = std.io;
 const fmt = std.fmt;
-const os = std.os;
 const Builder = std.build.Builder;
 const mem = std.mem;
+const process = std.process;
 const ArrayList = std.ArrayList;
 const warn = std.debug.warn;
+const File = std.fs.File;
 pub fn main() !void {
-    var arg_it = os.args();
+    var arg_it = process.args();
     // Here we use an ArenaAllocator backed by a DirectAllocator because a build is a short-lived,
     // one shot program. We don't need to waste time freeing memory and finding places to squish
 @@ -48,14 +49,14 @@ pub fn main() !void {
     var prefix: ?[]const u8 = null;
     var stderr_file = io.getStdErr();
-    var stderr_file_stream: os.File.OutStream = undefined;
+    var stderr_file_stream: File.OutStream = undefined;
     var stderr_stream = if (stderr_file) |f| x: {
         stderr_file_stream = f.outStream();
         break :x &stderr_file_stream.stream;
     } else |err| err;
     var stdout_file = io.getStdOut();
-    var stdout_file_stream: os.File.OutStream = undefined;
+    var stdout_file_stream: File.OutStream = undefined;
     var stdout_stream = if (stdout_file) |f| x: {
         stdout_file_stream = f.outStream();
         break :x &stdout_file_stream.stream;
 @@ -138,7 +139,7 @@ pub fn main() !void {
             error.InvalidStepName => {
                 return usageAndErr(&builder, true, try stderr_stream);
             },
-            error.UncleanExit => os.exit(1),
+            error.UncleanExit => process.exit(1),
             else => return err,
         }
     };
 @@ -214,7 +215,7 @@ fn usage(builder: *Builder, already_ran_build: bool, out_stream: var) !void {
 fn usageAndErr(builder: *Builder, already_ran_build: bool, out_stream: var) void {
     usage(builder, already_ran_build, out_stream) catch {};
-    os.exit(1);
+    process.exit(1);
 }
 const UnwrapArgError = error{OutOfMemory};

std/statically_initialized_mutex.zig+8-8

...	@@ -23,7 +23,7 @@ pub const StaticallyInitializedMutex = switch (builtin.os) {	...	@@ -23,7 +23,7 @@ pub const StaticallyInitializedMutex = switch (builtin.os) {
23	mutex: *StaticallyInitializedMutex,	23	mutex: *StaticallyInitializedMutex,
24		24
25	pub fn release(self: Held) void {	25	pub fn release(self: Held) void {
26	windows.LeaveCriticalSection(&self.mutex.lock);	26	windows.kernel32.LeaveCriticalSection(&self.mutex.lock);
27	}	27	}
28	};	28	};
29		29
...	@@ -40,20 +40,20 @@ pub const StaticallyInitializedMutex = switch (builtin.os) {	...	@@ -40,20 +40,20 @@ pub const StaticallyInitializedMutex = switch (builtin.os) {
40	Context: ?*c_void,	40	Context: ?*c_void,
41	) windows.BOOL {	41	) windows.BOOL {
42	const lock = @ptrCast(*windows.CRITICAL_SECTION, @alignCast(@alignOf(windows.CRITICAL_SECTION), Parameter));	42	const lock = @ptrCast(*windows.CRITICAL_SECTION, @alignCast(@alignOf(windows.CRITICAL_SECTION), Parameter));
43	windows.InitializeCriticalSection(lock);	43	windows.kernel32.InitializeCriticalSection(lock);
44	return windows.TRUE;	44	return windows.TRUE;
45	}	45	}
46		46
47	/// TODO: once https://github.com/ziglang/zig/issues/287 is solved and std.Mutex has a better	47	/// TODO: once https://github.com/ziglang/zig/issues/287 is solved and std.Mutex has a better
48	/// implementation of a runtime initialized mutex, remove this function.	48	/// implementation of a runtime initialized mutex, remove this function.
49	pub fn deinit(self: *StaticallyInitializedMutex) void {	49	pub fn deinit(self: *StaticallyInitializedMutex) void {
50	assert(windows.InitOnceExecuteOnce(&self.init_once, initCriticalSection, &self.lock, null) != 0);	50	windows.InitOnceExecuteOnce(&self.init_once, initCriticalSection, &self.lock, null);
51	windows.DeleteCriticalSection(&self.lock);	51	windows.kernel32.DeleteCriticalSection(&self.lock);
52	}	52	}
53		53
54	pub fn acquire(self: *StaticallyInitializedMutex) Held {	54	pub fn acquire(self: *StaticallyInitializedMutex) Held {
55	assert(windows.InitOnceExecuteOnce(&self.init_once, initCriticalSection, &self.lock, null) != 0);	55	windows.InitOnceExecuteOnce(&self.init_once, initCriticalSection, &self.lock, null);
56	windows.EnterCriticalSection(&self.lock);	56	windows.kernel32.EnterCriticalSection(&self.lock);
57	return Held{ .mutex = self };	57	return Held{ .mutex = self };
58	}	58	}
59	},	59	},
...	@@ -96,9 +96,9 @@ test "std.StaticallyInitializedMutex" {	...	@@ -96,9 +96,9 @@ test "std.StaticallyInitializedMutex" {
96	expect(context.data == TestContext.incr_count);	96	expect(context.data == TestContext.incr_count);
97	} else {	97	} else {
98	const thread_count = 10;	98	const thread_count = 10;
99	var threads: [thread_count]*std.os.Thread = undefined;	99	var threads: [thread_count]*std.Thread = undefined;
100	for (threads) \|*t\| {	100	for (threads) \|*t\| {
101	t.* = try std.os.spawnThread(&context, TestContext.worker);	101	t.* = try std.Thread.spawn(&context, TestContext.worker);
102	}	102	}
103	for (threads) \|t\|	103	for (threads) \|t\|
104	t.wait();	104	t.wait();

std/std.zig+10

 @@ -17,6 +17,8 @@ pub const PriorityQueue = @import("priority_queue.zig").PriorityQueue;
 pub const StaticallyInitializedMutex = @import("statically_initialized_mutex.zig").StaticallyInitializedMutex;
 pub const SegmentedList = @import("segmented_list.zig").SegmentedList;
 pub const SpinLock = @import("spinlock.zig").SpinLock;
+pub const ChildProcess = @import("child_process.zig").ChildProcess;
+pub const Thread = @import("thread.zig").Thread;
 pub const atomic = @import("atomic.zig");
 pub const base64 = @import("base64.zig");
 @@ -30,6 +32,7 @@ pub const dwarf = @import("dwarf.zig");
 pub const elf = @import("elf.zig");
 pub const event = @import("event.zig");
 pub const fmt = @import("fmt.zig");
+pub const fs = @import("fs.zig");
 pub const hash = @import("hash.zig");
 pub const hash_map = @import("hash_map.zig");
 pub const heap = @import("heap.zig");
 @@ -43,11 +46,13 @@ pub const meta = @import("meta.zig");
 pub const net = @import("net.zig");
 pub const os = @import("os.zig");
 pub const pdb = @import("pdb.zig");
+pub const process = @import("process.zig");
 pub const rand = @import("rand.zig");
 pub const rb = @import("rb.zig");
 pub const sort = @import("sort.zig");
 pub const ascii = @import("ascii.zig");
 pub const testing = @import("testing.zig");
+pub const time = @import("time.zig");
 pub const unicode = @import("unicode.zig");
 pub const valgrind = @import("valgrind.zig");
 pub const zig = @import("zig.zig");
 @@ -65,6 +70,7 @@ test "std" {
     _ = @import("statically_initialized_mutex.zig");
     _ = @import("segmented_list.zig");
     _ = @import("spinlock.zig");
+    _ = @import("child_process.zig");
     _ = @import("ascii.zig");
     _ = @import("base64.zig");
 @@ -79,6 +85,7 @@ test "std" {
     _ = @import("elf.zig");
     _ = @import("event.zig");
     _ = @import("fmt.zig");
+    _ = @import("fs.zig");
     _ = @import("hash.zig");
     _ = @import("heap.zig");
     _ = @import("io.zig");
 @@ -91,11 +98,14 @@ test "std" {
     _ = @import("net.zig");
     _ = @import("os.zig");
     _ = @import("pdb.zig");
+    _ = @import("process.zig");
     _ = @import("packed_int_array.zig");
     _ = @import("priority_queue.zig");
     _ = @import("rand.zig");
     _ = @import("sort.zig");
     _ = @import("testing.zig");
+    _ = @import("thread.zig");
+    _ = @import("time.zig");
     _ = @import("unicode.zig");
     _ = @import("valgrind.zig");
     _ = @import("zig.zig");

std/thread.zig created+349

...	@@ -0,0 +1,349 @@
1	const builtin = @import("builtin");
2	const std = @import("std.zig");
3	const os = std.os;
4	const mem = std.mem;
5	const windows = std.os.windows;
6	const c = std.c;
7	const assert = std.debug.assert;
8
9	pub const Thread = struct {
10	data: Data,
11
12	pub const use_pthreads = !windows.is_the_target and builtin.link_libc;
13
14	/// Represents a kernel thread handle.
15	/// May be an integer or a pointer depending on the platform.
16	/// On Linux and POSIX, this is the same as Id.
17	pub const Handle = if (use_pthreads)
18	c.pthread_t
19	else switch (builtin.os) {
20	.linux => i32,
21	.windows => windows.HANDLE,
22	else => @compileError("Unsupported OS"),
23	};
24
25	/// Represents a unique ID per thread.
26	/// May be an integer or pointer depending on the platform.
27	/// On Linux and POSIX, this is the same as Handle.
28	pub const Id = switch (builtin.os) {
29	.windows => windows.DWORD,
30	else => Handle,
31	};
32
33	pub const Data = if (use_pthreads)
34	struct {
35	handle: Thread.Handle,
36	memory: []align(mem.page_size) u8,
37	}
38	else switch (builtin.os) {
39	.linux => struct {
40	handle: Thread.Handle,
41	memory: []align(mem.page_size) u8,
42	},
43	.windows => struct {
44	handle: Thread.Handle,
45	alloc_start: *c_void,
46	heap_handle: windows.HANDLE,
47	},
48	else => @compileError("Unsupported OS"),
49	};
50
51	/// Returns the ID of the calling thread.
52	/// Makes a syscall every time the function is called.
53	/// On Linux and POSIX, this Id is the same as a Handle.
54	pub fn getCurrentId() Id {
55	if (use_pthreads) {
56	return c.pthread_self();
57	} else
58	return switch (builtin.os) {
59	.linux => os.linux.gettid(),
60	.windows => windows.kernel32.GetCurrentThreadId(),
61	else => @compileError("Unsupported OS"),
62	};
63	}
64
65	/// Returns the handle of this thread.
66	/// On Linux and POSIX, this is the same as Id.
67	/// On Linux, it is possible that the thread spawned with `spawn`
68	/// finishes executing entirely before the clone syscall completes. In this
69	/// case, this function will return 0 rather than the no-longer-existing thread's
70	/// pid.
71	pub fn handle(self: Thread) Handle {
72	return self.data.handle;
73	}
74
75	pub fn wait(self: *const Thread) void {
76	if (use_pthreads) {
77	const err = c.pthread_join(self.data.handle, null);
78	switch (err) {
79	0 => {},
80	os.EINVAL => unreachable,
81	os.ESRCH => unreachable,
82	os.EDEADLK => unreachable,
83	else => unreachable,
84	}
85	os.munmap(self.data.memory);
86	} else switch (builtin.os) {
87	.linux => {
88	while (true) {
89	const pid_value = @atomicLoad(i32, &self.data.handle, .SeqCst);
90	if (pid_value == 0) break;
91	const rc = os.linux.futex_wait(&self.data.handle, os.linux.FUTEX_WAIT, pid_value, null);
92	switch (os.linux.getErrno(rc)) {
93	0 => continue,
94	os.EINTR => continue,
95	os.EAGAIN => continue,
96	else => unreachable,
97	}
98	}
99	os.munmap(self.data.memory);
100	},
101	.windows => {
102	windows.WaitForSingleObject(self.data.handle, windows.INFINITE) catch unreachable;
103	windows.CloseHandle(self.data.handle);
104	windows.HeapFree(self.data.heap_handle, 0, self.data.alloc_start);
105	},
106	else => @compileError("Unsupported OS"),
107	}
108	}
109
110	pub const SpawnError = error{
111	/// A system-imposed limit on the number of threads was encountered.
112	/// There are a number of limits that may trigger this error:
113	/// * the RLIMIT_NPROC soft resource limit (set via setrlimit(2)),
114	/// which limits the number of processes and threads for a real
115	/// user ID, was reached;
116	/// * the kernel's system-wide limit on the number of processes and
117	/// threads, /proc/sys/kernel/threads-max, was reached (see
118	/// proc(5));
119	/// * the maximum number of PIDs, /proc/sys/kernel/pid_max, was
120	/// reached (see proc(5)); or
121	/// * the PID limit (pids.max) imposed by the cgroup "process num‐
122	/// ber" (PIDs) controller was reached.
123	ThreadQuotaExceeded,
124
125	/// The kernel cannot allocate sufficient memory to allocate a task structure
126	/// for the child, or to copy those parts of the caller's context that need to
127	/// be copied.
128	SystemResources,
129
130	/// Not enough userland memory to spawn the thread.
131	OutOfMemory,
132
133	/// `mlockall` is enabled, and the memory needed to spawn the thread
134	/// would exceed the limit.
135	LockedMemoryLimitExceeded,
136
137	Unexpected,
138	};
139
140	/// caller must call wait on the returned thread
141	/// fn startFn(@typeOf(context)) T
142	/// where T is u8, noreturn, void, or !void
143	/// caller must call wait on the returned thread
144	pub fn spawn(context: var, comptime startFn: var) SpawnError!*Thread {
145	if (builtin.single_threaded) @compileError("cannot spawn thread when building in single-threaded mode");
146	// TODO compile-time call graph analysis to determine stack upper bound
147	// https://github.com/ziglang/zig/issues/157
148	const default_stack_size = 8 * 1024 * 1024;
149
150	const Context = @typeOf(context);
151	comptime assert(@ArgType(@typeOf(startFn), 0) == Context);
152
153	if (builtin.os == builtin.Os.windows) {
154	const WinThread = struct {
155	const OuterContext = struct {
156	thread: Thread,
157	inner: Context,
158	};
159	extern fn threadMain(raw_arg: windows.LPVOID) windows.DWORD {
160	const arg = if (@sizeOf(Context) == 0) {} else @ptrCast(Context, @alignCast(@alignOf(Context), raw_arg)).;
161	switch (@typeId(@typeOf(startFn).ReturnType)) {
162	.Int => {
163	return startFn(arg);
164	},
165	.Void => {
166	startFn(arg);
167	return 0;
168	},
169	else => @compileError("expected return type of startFn to be 'u8', 'noreturn', 'void', or '!void'"),
170	}
171	}
172	};
173
174	const heap_handle = windows.kernel32.GetProcessHeap() orelse return error.OutOfMemory;
175	const byte_count = @alignOf(WinThread.OuterContext) + @sizeOf(WinThread.OuterContext);
176	const bytes_ptr = windows.kernel32.HeapAlloc(heap_handle, 0, byte_count) orelse return error.OutOfMemory;
177	errdefer assert(windows.kernel32.HeapFree(heap_handle, 0, bytes_ptr) != 0);
178	const bytes = @ptrCast([*]u8, bytes_ptr)[0..byte_count];
179	const outer_context = std.heap.FixedBufferAllocator.init(bytes).allocator.create(WinThread.OuterContext) catch unreachable;
180	outer_context.* = WinThread.OuterContext{
181	.thread = Thread{
182	.data = Thread.Data{
183	.heap_handle = heap_handle,
184	.alloc_start = bytes_ptr,
185	.handle = undefined,
186	},
187	},
188	.inner = context,
189	};
190
191	const parameter = if (@sizeOf(Context) == 0) null else @ptrCast(*c_void, &outer_context.inner);
192	outer_context.thread.data.handle = windows.kernel32.CreateThread(null, default_stack_size, WinThread.threadMain, parameter, 0, null) orelse {
193	switch (windows.kernel32.GetLastError()) {
194	else => \|err\| return windows.unexpectedError(err),
195	}
196	};
197	return &outer_context.thread;
198	}
199
200	const MainFuncs = struct {
201	extern fn linuxThreadMain(ctx_addr: usize) u8 {
202	const arg = if (@sizeOf(Context) == 0) {} else @intToPtr(const Context, ctx_addr).;
203
204	switch (@typeId(@typeOf(startFn).ReturnType)) {
205	.Int => {
206	return startFn(arg);
207	},
208	.Void => {
209	startFn(arg);
210	return 0;
211	},
212	else => @compileError("expected return type of startFn to be 'u8', 'noreturn', 'void', or '!void'"),
213	}
214	}
215	extern fn posixThreadMain(ctx: ?c_void) ?c_void {
216	if (@sizeOf(Context) == 0) {
217	_ = startFn({});
218	return null;
219	} else {
220	_ = startFn(@ptrCast(const Context, @alignCast(@alignOf(Context), ctx)).);
221	return null;
222	}
223	}
224	};
225
226	const MAP_GROWSDOWN = if (os.linux.is_the_target) os.linux.MAP_GROWSDOWN else 0;
227
228	var stack_end_offset: usize = undefined;
229	var thread_start_offset: usize = undefined;
230	var context_start_offset: usize = undefined;
231	var tls_start_offset: usize = undefined;
232	const mmap_len = blk: {
233	// First in memory will be the stack, which grows downwards.
234	var l: usize = mem.alignForward(default_stack_size, mem.page_size);
235	stack_end_offset = l;
236	// Above the stack, so that it can be in the same mmap call, put the Thread object.
237	l = mem.alignForward(l, @alignOf(Thread));
238	thread_start_offset = l;
239	l += @sizeOf(Thread);
240	// Next, the Context object.
241	if (@sizeOf(Context) != 0) {
242	l = mem.alignForward(l, @alignOf(Context));
243	context_start_offset = l;
244	l += @sizeOf(Context);
245	}
246	// Finally, the Thread Local Storage, if any.
247	if (!Thread.use_pthreads) {
248	if (os.linux.tls.tls_image) \|tls_img\| {
249	l = mem.alignForward(l, @alignOf(usize));
250	tls_start_offset = l;
251	l += tls_img.alloc_size;
252	}
253	}
254	break :blk l;
255	};
256	const mmap_slice = os.mmap(
257	null,
258	mem.alignForward(mmap_len, mem.page_size),
259	os.PROT_READ \| os.PROT_WRITE,
260	os.MAP_PRIVATE \| os.MAP_ANONYMOUS \| MAP_GROWSDOWN,
261	-1,
262	0,
263	) catch \|err\| switch (err) {
264	error.MemoryMappingNotSupported => unreachable, // no file descriptor
265	error.AccessDenied => unreachable, // no file descriptor
266	error.PermissionDenied => unreachable, // no file descriptor
267	else => \|e\| return e,
268	};
269	errdefer os.munmap(mmap_slice);
270	const mmap_addr = @ptrToInt(mmap_slice.ptr);
271
272	const thread_ptr = @alignCast(@alignOf(Thread), @intToPtr(*Thread, mmap_addr + thread_start_offset));
273	thread_ptr.data.memory = mmap_slice;
274
275	var arg: usize = undefined;
276	if (@sizeOf(Context) != 0) {
277	arg = mmap_addr + context_start_offset;
278	const context_ptr = @alignCast(@alignOf(Context), @intToPtr(*Context, arg));
279	context_ptr.* = context;
280	}
281
282	if (Thread.use_pthreads) {
283	// use pthreads
284	var attr: c.pthread_attr_t = undefined;
285	if (c.pthread_attr_init(&attr) != 0) return error.SystemResources;
286	defer assert(c.pthread_attr_destroy(&attr) == 0);
287
288	assert(c.pthread_attr_setstack(&attr, mmap_slice.ptr, stack_end_offset) == 0);
289
290	const err = c.pthread_create(&thread_ptr.data.handle, &attr, MainFuncs.posixThreadMain, @intToPtr(*c_void, arg));
291	switch (err) {
292	0 => return thread_ptr,
293	os.EAGAIN => return error.SystemResources,
294	os.EPERM => unreachable,
295	os.EINVAL => unreachable,
296	else => return os.unexpectedErrno(@intCast(usize, err)),
297	}
298	} else if (os.linux.is_the_target) {
299	var flags: u32 = os.CLONE_VM \| os.CLONE_FS \| os.CLONE_FILES \| os.CLONE_SIGHAND \|
300	os.CLONE_THREAD \| os.CLONE_SYSVSEM \| os.CLONE_PARENT_SETTID \| os.CLONE_CHILD_CLEARTID \|
301	os.CLONE_DETACHED;
302	var newtls: usize = undefined;
303	if (os.linux.tls.tls_image) \|tls_img\| {
304	newtls = os.linux.tls.copyTLS(mmap_addr + tls_start_offset);
305	flags \|= os.CLONE_SETTLS;
306	}
307	const rc = os.linux.clone(MainFuncs.linuxThreadMain, mmap_addr + stack_end_offset, flags, arg, &thread_ptr.data.handle, newtls, &thread_ptr.data.handle);
308	switch (os.errno(rc)) {
309	0 => return thread_ptr,
310	os.EAGAIN => return error.ThreadQuotaExceeded,
311	os.EINVAL => unreachable,
312	os.ENOMEM => return error.SystemResources,
313	os.ENOSPC => unreachable,
314	os.EPERM => unreachable,
315	os.EUSERS => unreachable,
316	else => \|err\| return os.unexpectedErrno(err),
317	}
318	} else {
319	@compileError("Unsupported OS");
320	}
321	}
322
323	pub const CpuCountError = error{
324	OutOfMemory,
325	PermissionDenied,
326	SystemResources,
327	Unexpected,
328	};
329
330	pub fn cpuCount() CpuCountError!usize {
331	if (os.linux.is_the_target) {
332	const cpu_set = try os.sched_getaffinity(0);
333	return usize(os.CPU_COUNT(cpu_set)); // TODO should not need this usize cast
334	}
335	if (os.windows.is_the_target) {
336	var system_info: windows.SYSTEM_INFO = undefined;
337	windows.kernel32.GetSystemInfo(&system_info);
338	return @intCast(usize, system_info.dwNumberOfProcessors);
339	}
340	var count: c_int = undefined;
341	var count_len: usize = @sizeOf(c_int);
342	const name = if (os.darwin.is_the_target) c"hw.logicalcpu" else c"hw.ncpu";
343	os.sysctlbynameC(name, &count, &count_len, null, 0) catch \|err\| switch (err) {
344	error.NameTooLong => unreachable,
345	else => \|e\| return e,
346	};
347	return @intCast(usize, count);
348	}
349	};

std/time.zig created+221

...	@@ -0,0 +1,221 @@
1	const builtin = @import("builtin");
2	const std = @import("std.zig");
3	const assert = std.debug.assert;
4	const testing = std.testing;
5	const os = std.os;
6	const math = std.math;
7
8	pub const epoch = @import("time/epoch.zig");
9
10	/// Spurious wakeups are possible and no precision of timing is guaranteed.
11	pub fn sleep(nanoseconds: u64) void {
12	if (os.windows.is_the_target) {
13	const ns_per_ms = ns_per_s / ms_per_s;
14	const big_ms_from_ns = nanoseconds / ns_per_ms;
15	const ms = math.cast(os.windows.DWORD, big_ms_from_ns) catch math.maxInt(os.windows.DWORD);
16	os.windows.kernel32.Sleep(ms);
17	return;
18	}
19	const s = nanoseconds / ns_per_s;
20	const ns = nanoseconds % ns_per_s;
21	std.os.nanosleep(s, ns);
22	}
23
24	/// Get the posix timestamp, UTC, in seconds
25	/// TODO audit this function. is it possible to return an error?
26	pub fn timestamp() u64 {
27	return @divFloor(milliTimestamp(), ms_per_s);
28	}
29
30	/// Get the posix timestamp, UTC, in milliseconds
31	/// TODO audit this function. is it possible to return an error?
32	pub fn milliTimestamp() u64 {
33	if (os.windows.is_the_target) {
34	//FileTime has a granularity of 100 nanoseconds
35	// and uses the NTFS/Windows epoch
36	var ft: os.windows.FILETIME = undefined;
37	os.windows.kernel32.GetSystemTimeAsFileTime(&ft);
38	const hns_per_ms = (ns_per_s / 100) / ms_per_s;
39	const epoch_adj = epoch.windows * ms_per_s;
40
41	const ft64 = (u64(ft.dwHighDateTime) << 32) \| ft.dwLowDateTime;
42	return @divFloor(ft64, hns_per_ms) - -epoch_adj;
43	}
44	if (os.wasi.is_the_target and !builtin.link_libc) {
45	var ns: os.wasi.timestamp_t = undefined;
46
47	// TODO: Verify that precision is ignored
48	const err = os.wasi.clock_time_get(os.wasi.CLOCK_REALTIME, 1, &ns);
49	assert(err == os.wasi.ESUCCESS);
50
51	const ns_per_ms = 1000;
52	return @divFloor(ns, ns_per_ms);
53	}
54	if (os.darwin.is_the_target) {
55	var tv: os.darwin.timeval = undefined;
56	var err = os.darwin.gettimeofday(&tv, null);
57	assert(err == 0);
58	const sec_ms = tv.tv_sec * ms_per_s;
59	const usec_ms = @divFloor(tv.tv_usec, us_per_s / ms_per_s);
60	return @intCast(u64, sec_ms + usec_ms);
61	}
62	var ts: os.timespec = undefined;
63	//From what I can tell there's no reason clock_gettime
64	// should ever fail for us with CLOCK_REALTIME,
65	// seccomp aside.
66	os.clock_gettime(os.CLOCK_REALTIME, &ts) catch unreachable;
67	const sec_ms = @intCast(u64, ts.tv_sec) * ms_per_s;
68	const nsec_ms = @divFloor(@intCast(u64, ts.tv_nsec), ns_per_s / ms_per_s);
69	return sec_ms + nsec_ms;
70	}
71
72	/// Multiples of a base unit (nanoseconds)
73	pub const nanosecond = 1;
74	pub const microsecond = 1000 * nanosecond;
75	pub const millisecond = 1000 * microsecond;
76	pub const second = 1000 * millisecond;
77	pub const minute = 60 * second;
78	pub const hour = 60 * minute;
79
80	/// Divisions of a second
81	pub const ns_per_s = 1000000000;
82	pub const us_per_s = 1000000;
83	pub const ms_per_s = 1000;
84	pub const cs_per_s = 100;
85
86	/// Common time divisions
87	pub const s_per_min = 60;
88	pub const s_per_hour = s_per_min * 60;
89	pub const s_per_day = s_per_hour * 24;
90	pub const s_per_week = s_per_day * 7;
91
92	/// A monotonic high-performance timer.
93	/// Timer.start() must be called to initialize the struct, which captures
94	/// the counter frequency on windows and darwin, records the resolution,
95	/// and gives the user an opportunity to check for the existnece of
96	/// monotonic clocks without forcing them to check for error on each read.
97	/// .resolution is in nanoseconds on all platforms but .start_time's meaning
98	/// depends on the OS. On Windows and Darwin it is a hardware counter
99	/// value that requires calculation to convert to a meaninful unit.
100	pub const Timer = struct {
101	///if we used resolution's value when performing the
102	/// performance counter calc on windows/darwin, it would
103	/// be less precise
104	frequency: switch (builtin.os) {
105	.windows => u64,
106	.macosx, .ios, .tvos, .watchos => os.darwin.mach_timebase_info_data,
107	else => void,
108	},
109	resolution: u64,
110	start_time: u64,
111
112	const Error = error{TimerUnsupported};
113
114	///At some point we may change our minds on RAW, but for now we're
115	/// sticking with posix standard MONOTONIC. For more information, see:
116	/// https://github.com/ziglang/zig/pull/933
117	const monotonic_clock_id = os.CLOCK_MONOTONIC;
118	/// Initialize the timer structure.
119	//This gives us an opportunity to grab the counter frequency in windows.
120	//On Windows: QueryPerformanceCounter will succeed on anything >= XP/2000.
121	//On Posix: CLOCK_MONOTONIC will only fail if the monotonic counter is not
122	// supported, or if the timespec pointer is out of bounds, which should be
123	// impossible here barring cosmic rays or other such occurrences of
124	// incredibly bad luck.
125	//On Darwin: This cannot fail, as far as I am able to tell.
126	pub fn start() Error!Timer {
127	var self: Timer = undefined;
128
129	if (os.windows.is_the_target) {
130	self.frequency = os.windows.QueryPerformanceFrequency();
131	self.resolution = @divFloor(ns_per_s, self.frequency);
132	self.start_time = os.windows.QueryPerformanceCounter();
133	} else if (os.darwin.is_the_target) {
134	os.darwin.mach_timebase_info(&self.frequency);
135	self.resolution = @divFloor(self.frequency.numer, self.frequency.denom);
136	self.start_time = os.darwin.mach_absolute_time();
137	} else {
138	//On Linux, seccomp can do arbitrary things to our ability to call
139	// syscalls, including return any errno value it wants and
140	// inconsistently throwing errors. Since we can't account for
141	// abuses of seccomp in a reasonable way, we'll assume that if
142	// seccomp is going to block us it will at least do so consistently
143	var ts: os.timespec = undefined;
144	os.clock_getres(monotonic_clock_id, &ts) catch return error.TimerUnsupported;
145	self.resolution = @intCast(u64, ts.tv_sec) * u64(ns_per_s) + @intCast(u64, ts.tv_nsec);
146
147	os.clock_gettime(monotonic_clock_id, &ts) catch return error.TimerUnsupported;
148	self.start_time = @intCast(u64, ts.tv_sec) * u64(ns_per_s) + @intCast(u64, ts.tv_nsec);
149	}
150
151	return self;
152	}
153
154	/// Reads the timer value since start or the last reset in nanoseconds
155	pub fn read(self: *Timer) u64 {
156	var clock = clockNative() - self.start_time;
157	if (os.windows.is_the_target) {
158	return @divFloor(clock * ns_per_s, self.frequency);
159	}
160	if (os.darwin.is_the_target) {
161	return @divFloor(clock * self.frequency.numer, self.frequency.denom);
162	}
163	return clock;
164	}
165
166	/// Resets the timer value to 0/now.
167	pub fn reset(self: *Timer) void {
168	self.start_time = clockNative();
169	}
170
171	/// Returns the current value of the timer in nanoseconds, then resets it
172	pub fn lap(self: *Timer) u64 {
173	var now = clockNative();
174	var lap_time = self.read();
175	self.start_time = now;
176	return lap_time;
177	}
178
179	fn clockNative() u64 {
180	if (os.windows.is_the_target) {
181	return os.windows.QueryPerformanceCounter();
182	}
183	if (os.darwin.is_the_target) {
184	return os.darwin.mach_absolute_time();
185	}
186	var ts: os.timespec = undefined;
187	os.clock_gettime(monotonic_clock_id, &ts) catch unreachable;
188	return @intCast(u64, ts.tv_sec) * u64(ns_per_s) + @intCast(u64, ts.tv_nsec);
189	}
190	};
191
192	test "sleep" {
193	sleep(1);
194	}
195
196	test "timestamp" {
197	const ns_per_ms = (ns_per_s / ms_per_s);
198	const margin = 50;
199
200	const time_0 = milliTimestamp();
201	sleep(ns_per_ms);
202	const time_1 = milliTimestamp();
203	const interval = time_1 - time_0;
204	testing.expect(interval > 0 and interval < margin);
205	}
206
207	test "Timer" {
208	const ns_per_ms = (ns_per_s / ms_per_s);
209	const margin = ns_per_ms * 150;
210
211	var timer = try Timer.start();
212	sleep(10 * ns_per_ms);
213	const time_0 = timer.read();
214	testing.expect(time_0 > 0 and time_0 < margin);
215
216	const time_1 = timer.lap();
217	testing.expect(time_1 >= time_0);
218
219	timer.reset();
220	testing.expect(timer.read() < time_1);
221	}

std/time/epoch.zig created+26

...	@@ -0,0 +1,26 @@
1	/// Epoch reference times in terms of their difference from
2	/// posix epoch in seconds.
3	pub const posix = 0; //Jan 01, 1970 AD
4	pub const dos = 315532800; //Jan 01, 1980 AD
5	pub const ios = 978307200; //Jan 01, 2001 AD
6	pub const openvms = -3506716800; //Nov 17, 1858 AD
7	pub const zos = -2208988800; //Jan 01, 1900 AD
8	pub const windows = -11644473600; //Jan 01, 1601 AD
9	pub const amiga = 252460800; //Jan 01, 1978 AD
10	pub const pickos = -63244800; //Dec 31, 1967 AD
11	pub const gps = 315964800; //Jan 06, 1980 AD
12	pub const clr = -62135769600; //Jan 01, 0001 AD
13
14	pub const unix = posix;
15	pub const android = posix;
16	pub const os2 = dos;
17	pub const bios = dos;
18	pub const vfat = dos;
19	pub const ntfs = windows;
20	pub const ntp = zos;
21	pub const jbase = pickos;
22	pub const aros = amiga;
23	pub const morphos = amiga;
24	pub const brew = gps;
25	pub const atsc = gps;
26	pub const go = clr;

std/zig/bench.zig+2-2

...	@@ -10,7 +10,7 @@ var fixed_buffer_mem: [10 * 1024 * 1024]u8 = undefined;	...	@@ -10,7 +10,7 @@ var fixed_buffer_mem: [10 * 1024 * 1024]u8 = undefined;
10		10
11	pub fn main() !void {	11	pub fn main() !void {
12	var i: usize = 0;	12	var i: usize = 0;
13	var timer = try std.os.time.Timer.start();	13	var timer = try std.time.Timer.start();
14	const start = timer.lap();	14	const start = timer.lap();
15	const iterations = 100;	15	const iterations = 100;
16	var memory_used: usize = 0;	16	var memory_used: usize = 0;
...	@@ -19,7 +19,7 @@ pub fn main() !void {	...	@@ -19,7 +19,7 @@ pub fn main() !void {
19	}	19	}
20	const end = timer.read();	20	const end = timer.read();
21	memory_used /= iterations;	21	memory_used /= iterations;
22	const elapsed_s = @intToFloat(f64, end - start) / std.os.time.ns_per_s;	22	const elapsed_s = @intToFloat(f64, end - start) / std.time.ns_per_s;
23	const bytes_per_sec = @intToFloat(f64, source.len * iterations) / elapsed_s;	23	const bytes_per_sec = @intToFloat(f64, source.len * iterations) / elapsed_s;
24	const mb_per_sec = bytes_per_sec / (1024 * 1024);	24	const mb_per_sec = bytes_per_sec / (1024 * 1024);
25		25

test/cli.zig+21-19

 @@ -1,7 +1,9 @@
 const std = @import("std");
 const builtin = @import("builtin");
-const os = std.os;
 const testing = std.testing;
+const process = std.process;
+const fs = std.fs;
+const ChildProcess = std.ChildProcess;
 var a: *std.mem.Allocator = undefined;
 @@ -12,7 +14,7 @@ pub fn main() !void {
     var arena = std.heap.ArenaAllocator.init(&direct_allocator.allocator);
     defer arena.deinit();
-    var arg_it = os.args();
+    var arg_it = process.args();
     // skip my own exe name
     _ = arg_it.skip();
 @@ -27,9 +29,9 @@ pub fn main() !void {
         std.debug.warn("Expected second argument to be cache root directory path\n");
         return error.InvalidArgs;
     });
-    const zig_exe = try os.path.resolve(a, [][]const u8{zig_exe_rel});
+    const zig_exe = try fs.path.resolve(a, [][]const u8{zig_exe_rel});
-    const dir_path = try os.path.join(a, [][]const u8{ cache_root, "clitest" });
+    const dir_path = try fs.path.join(a, [][]const u8{ cache_root, "clitest" });
     const TestFn = fn ([]const u8, []const u8) anyerror!void;
     const test_fns = []TestFn{
         testZigInitLib,
 @@ -37,8 +39,8 @@ pub fn main() !void {
         testGodboltApi,
     };
     for (test_fns) |testFn| {
-        try os.deleteTree(a, dir_path);
+        try fs.deleteTree(a, dir_path);
-        try os.makeDir(dir_path);
+        try fs.makeDir(dir_path);
         try testFn(zig_exe, dir_path);
     }
 }
 @@ -58,15 +60,15 @@ fn printCmd(cwd: []const u8, argv: []const []const u8) void {
     std.debug.warn("\n");
 }
-fn exec(cwd: []const u8, argv: []const []const u8) !os.ChildProcess.ExecResult {
+fn exec(cwd: []const u8, argv: []const []const u8) !ChildProcess.ExecResult {
     const max_output_size = 100 * 1024;
-    const result = os.ChildProcess.exec(a, argv, cwd, null, max_output_size) catch |err| {
+    const result = ChildProcess.exec(a, argv, cwd, null, max_output_size) catch |err| {
         std.debug.warn("The following command failed:\n");
         printCmd(cwd, argv);
         return err;
     };
     switch (result.term) {
-        os.ChildProcess.Term.Exited => |code| {
+        .Exited => |code| {
             if (code != 0) {
                 std.debug.warn("The following command exited with error code {}:\n", code);
                 printCmd(cwd, argv);
 @@ -97,10 +99,10 @@ fn testZigInitExe(zig_exe: []const u8, dir_path: []const u8) !void {
 }
 fn testGodboltApi(zig_exe: []const u8, dir_path: []const u8) anyerror!void {
-    if (builtin.os != builtin.Os.linux or builtin.arch != builtin.Arch.x86_64) return;
+    if (builtin.os != .linux or builtin.arch != .x86_64) return;
-    const example_zig_path = try os.path.join(a, [][]const u8{ dir_path, "example.zig" });
+    const example_zig_path = try fs.path.join(a, [][]const u8{ dir_path, "example.zig" });
-    const example_s_path = try os.path.join(a, [][]const u8{ dir_path, "example.s" });
+    const example_s_path = try fs.path.join(a, [][]const u8{ dir_path, "example.s" });
     try std.io.writeFile(example_zig_path,
         \\// Type your code here, or load an example.
 @@ -114,13 +116,13 @@ fn testGodboltApi(zig_exe: []const u8, dir_path: []const u8) anyerror!void {
     );
     const args = [][]const u8{
-        zig_exe, "build-obj",
+        zig_exe,          "build-obj",
-        "--cache-dir", dir_path,
+        "--cache-dir",    dir_path,
-        "--name", "example",
+        "--name",         "example",
-        "--output-dir", dir_path,
+        "--output-dir",   dir_path,
-        "--emit", "asm",
+        "--emit",         "asm",
-        "-mllvm", "--x86-asm-syntax=intel",
+        "-mllvm",         "--x86-asm-syntax=intel",
-        "--strip", "--release-fast",
+        "--strip",        "--release-fast",
         example_zig_path, "--disable-gen-h",
     };
     _ = try exec(dir_path, args);

test/compare_output.zig+3-3

test/compile_errors.zig+9

...	@@ -2,6 +2,15 @@ const tests = @import("tests.zig");	...	@@ -2,6 +2,15 @@ const tests = @import("tests.zig");
2	const builtin = @import("builtin");	2	const builtin = @import("builtin");
3		3
4	pub fn addCases(cases: *tests.CompileErrorContext) void {	4	pub fn addCases(cases: *tests.CompileErrorContext) void {
		5	cases.add(
		6	"@hasDecl with non-container",
		7	\\export fn entry() void {
		8	\\ _ = @hasDecl(i32, "hi");
		9	\\}
		10	,
		11	"tmp.zig:2:18: error: expected struct, enum, or union; found 'i32'",
		12	);
		13
5	cases.add(	14	cases.add(
6	"field access of slices",	15	"field access of slices",
7	\\export fn entry() void {	16	\\export fn entry() void {

test/stage1/behavior.zig+1

...	@@ -53,6 +53,7 @@ comptime {	...	@@ -53,6 +53,7 @@ comptime {
53	_ = @import("behavior/fn_in_struct_in_comptime.zig");	53	_ = @import("behavior/fn_in_struct_in_comptime.zig");
54	_ = @import("behavior/for.zig");	54	_ = @import("behavior/for.zig");
55	_ = @import("behavior/generics.zig");	55	_ = @import("behavior/generics.zig");
		56	_ = @import("behavior/hasdecl.zig");
56	_ = @import("behavior/if.zig");	57	_ = @import("behavior/if.zig");
57	_ = @import("behavior/import.zig");	58	_ = @import("behavior/import.zig");
58	_ = @import("behavior/incomplete_struct_param_tld.zig");	59	_ = @import("behavior/incomplete_struct_param_tld.zig");

test/stage1/behavior/cast.zig+1-1

...	@@ -318,7 +318,7 @@ fn testCastPtrOfArrayToSliceAndPtr() void {	...	@@ -318,7 +318,7 @@ fn testCastPtrOfArrayToSliceAndPtr() void {
318	test "cast [1][]const u8 to []const ?[]const u8" {	318	test "cast [1][]const u8 to []const ?[]const u8" {
319	const window_name = [1][*]const u8{c"window name"};	319	const window_name = [1][*]const u8{c"window name"};
320	const x: []const ?[]const u8 = &window_name;	320	const x: []const ?[]const u8 = &window_name;
321	expect(mem.eql(u8, std.cstr.toSliceConst(x[0].?), "window name"));	321	expect(mem.eql(u8, std.mem.toSliceConst(u8, x[0].?), "window name"));
322	}	322	}
323		323
324	test "@intCast comptime_int" {	324	test "@intCast comptime_int" {

test/stage1/behavior/hasdecl.zig created+21

...	@@ -0,0 +1,21 @@
1	const std = @import("std");
2	const expect = std.testing.expect;
3
4	const Foo = @import("hasdecl/foo.zig");
5
6	const Bar = struct {
7	nope: i32,
8
9	const hi = 1;
10	pub var blah = "xxx";
11	};
12
13	test "@hasDecl" {
14	expect(@hasDecl(Foo, "public_thing"));
15	expect(!@hasDecl(Foo, "private_thing"));
16	expect(!@hasDecl(Foo, "no_thing"));
17
18	expect(@hasDecl(Bar, "hi"));
19	expect(@hasDecl(Bar, "blah"));
20	expect(!@hasDecl(Bar, "nope"));
21	}

test/stage1/behavior/hasdecl/foo.zig created+2

...	@@ -0,0 +1,2 @@
1	pub const public_thing = 42;
2	const private_thing = 666;

test/stage1/behavior/misc.zig+2-3

...	@@ -2,7 +2,6 @@ const std = @import("std");	...	@@ -2,7 +2,6 @@ const std = @import("std");
2	const expect = std.testing.expect;	2	const expect = std.testing.expect;
3	const expectEqualSlices = std.testing.expectEqualSlices;	3	const expectEqualSlices = std.testing.expectEqualSlices;
4	const mem = std.mem;	4	const mem = std.mem;
5	const cstr = std.cstr;
6	const builtin = @import("builtin");	5	const builtin = @import("builtin");
7	const maxInt = std.math.maxInt;	6	const maxInt = std.math.maxInt;
8		7
...	@@ -210,7 +209,7 @@ test "multiline C string" {	...	@@ -210,7 +209,7 @@ test "multiline C string" {
210	c\\three	209	c\\three
211	;	210	;
212	const s2 = c"one\ntwo)\nthree";	211	const s2 = c"one\ntwo)\nthree";
213	expect(cstr.cmp(s1, s2) == 0);	212	expect(std.cstr.cmp(s1, s2) == 0);
214	}	213	}
215		214
216	test "type equality" {	215	test "type equality" {
...	@@ -363,7 +362,7 @@ test "C string concatenation" {	...	@@ -363,7 +362,7 @@ test "C string concatenation" {
363	const a = c"OK" ++ c" IT " ++ c"WORKED";	362	const a = c"OK" ++ c" IT " ++ c"WORKED";
364	const b = c"OK IT WORKED";	363	const b = c"OK IT WORKED";
365		364
366	const len = cstr.len(b);	365	const len = mem.len(u8, b);
367	const len_with_null = len + 1;	366	const len_with_null = len + 1;
368	{	367	{
369	var i: u32 = 0;	368	var i: u32 = 0;

test/stage1/behavior/ptrcast.zig+8

...	@@ -58,3 +58,11 @@ test "comptime ptrcast keeps larger alignment" {	...	@@ -58,3 +58,11 @@ test "comptime ptrcast keeps larger alignment" {
58	std.debug.assert(@typeOf(p) == [*]align(@alignOf(u32)) const u8);	58	std.debug.assert(@typeOf(p) == [*]align(@alignOf(u32)) const u8);
59	}	59	}
60	}	60	}
		61
		62	test "implicit optional pointer to optional c_void pointer" {
		63	var buf: [4]u8 = "aoeu";
		64	var x: ?[*]u8 = &buf;
		65	var y: ?*c_void = x;
		66	var z = @ptrCast(*[4]u8, y);
		67	expect(std.mem.eql(u8, z, "aoeu"));
		68	}

test/standalone/empty_env/main.zig+1-1

...	@@ -1,6 +1,6 @@	...	@@ -1,6 +1,6 @@
1	const std = @import("std");	1	const std = @import("std");
2		2
3	pub fn main() void {	3	pub fn main() void {
4	const env_map = std.os.getEnvMap(std.debug.global_allocator) catch @panic("unable to get env map");	4	const env_map = std.process.getEnvMap(std.debug.global_allocator) catch @panic("unable to get env map");
5	std.testing.expect(env_map.count() == 0);	5	std.testing.expect(env_map.count() == 0);
6	}	6	}

test/tests.zig+45-47

 @@ -2,11 +2,9 @@ const std = @import("std");
 const debug = std.debug;
 const warn = debug.warn;
 const build = std.build;
-const os = std.os;
-const StdIo = os.ChildProcess.StdIo;
-const Term = os.ChildProcess.Term;
 const Buffer = std.Buffer;
 const io = std.io;
+const fs = std.fs;
 const mem = std.mem;
 const fmt = std.fmt;
 const ArrayList = std.ArrayList;
 @@ -30,19 +28,19 @@ const TestTarget = struct {
 const test_targets = []TestTarget{
     TestTarget{
-        .os = builtin.Os.linux,
+        .os = .linux,
-        .arch = builtin.Arch.x86_64,
+        .arch = .x86_64,
-        .abi = builtin.Abi.gnu,
+        .abi = .gnu,
     },
     TestTarget{
-        .os = builtin.Os.macosx,
+        .os = .macosx,
-        .arch = builtin.Arch.x86_64,
+        .arch = .x86_64,
-        .abi = builtin.Abi.gnu,
+        .abi = .gnu,
     },
     TestTarget{
-        .os = builtin.Os.windows,
+        .os = .windows,
-        .arch = builtin.Arch.x86_64,
+        .arch = .x86_64,
-        .abi = builtin.Abi.msvc,
+        .abi = .msvc,
     },
 };
 @@ -114,7 +112,7 @@ pub fn addCliTests(b: *build.Builder, test_filter: ?[]const u8, modes: []const M
     const exe = b.addExecutable("test-cli", "test/cli.zig");
     const run_cmd = exe.run();
     run_cmd.addArgs([][]const u8{
-        os.path.realAlloc(b.allocator, b.zig_exe) catch unreachable,
+        fs.realpathAlloc(b.allocator, b.zig_exe) catch unreachable,
         b.pathFromRoot(b.cache_root),
     });
 @@ -301,12 +299,12 @@ pub const CompareOutputContext = struct {
             warn("Test {}/{} {}...", self.test_index + 1, self.context.test_index, self.name);
-            const child = os.ChildProcess.init(args.toSliceConst(), b.allocator) catch unreachable;
+            const child = std.ChildProcess.init(args.toSliceConst(), b.allocator) catch unreachable;
             defer child.deinit();
-            child.stdin_behavior = StdIo.Ignore;
+            child.stdin_behavior = .Ignore;
-            child.stdout_behavior = StdIo.Pipe;
+            child.stdout_behavior = .Pipe;
-            child.stderr_behavior = StdIo.Pipe;
+            child.stderr_behavior = .Pipe;
             child.env_map = b.env_map;
             child.spawn() catch |err| debug.panic("Unable to spawn {}: {}\n", full_exe_path, @errorName(err));
 @@ -324,7 +322,7 @@ pub const CompareOutputContext = struct {
                 debug.panic("Unable to spawn {}: {}\n", full_exe_path, @errorName(err));
             };
             switch (term) {
-                Term.Exited => |code| {
+                .Exited => |code| {
                     if (code != 0) {
                         warn("Process {} exited with error code {}\n", full_exe_path, code);
                         printInvocation(args.toSliceConst());
 @@ -383,27 +381,27 @@ pub const CompareOutputContext = struct {
             warn("Test {}/{} {}...", self.test_index + 1, self.context.test_index, self.name);
-            const child = os.ChildProcess.init([][]const u8{full_exe_path}, b.allocator) catch unreachable;
+            const child = std.ChildProcess.init([][]const u8{full_exe_path}, b.allocator) catch unreachable;
             defer child.deinit();
             child.env_map = b.env_map;
-            child.stdin_behavior = StdIo.Ignore;
+            child.stdin_behavior = .Ignore;
-            child.stdout_behavior = StdIo.Ignore;
+            child.stdout_behavior = .Ignore;
-            child.stderr_behavior = StdIo.Ignore;
+            child.stderr_behavior = .Ignore;
             const term = child.spawnAndWait() catch |err| {
                 debug.panic("Unable to spawn {}: {}\n", full_exe_path, @errorName(err));
             };
-            const expected_exit_code: i32 = 126;
+            const expected_exit_code: u32 = 126;
             switch (term) {
-                Term.Exited => |code| {
+                .Exited => |code| {
                     if (code != expected_exit_code) {
                         warn("\nProgram expected to exit with code {} " ++ "but exited with code {}\n", expected_exit_code, code);
                         return error.TestFailed;
                     }
                 },
-                Term.Signal => |sig| {
+                .Signal => |sig| {
                     warn("\nProgram expected to exit with code {} " ++ "but instead signaled {}\n", expected_exit_code, sig);
                     return error.TestFailed;
                 },
 @@ -459,7 +457,7 @@ pub const CompareOutputContext = struct {
     pub fn addCase(self: *CompareOutputContext, case: TestCase) void {
         const b = self.b;
-        const root_src = os.path.join(
+        const root_src = fs.path.join(
             b.allocator,
             [][]const u8{ b.cache_root, case.sources.items[0].filename },
         ) catch unreachable;
 @@ -475,7 +473,7 @@ pub const CompareOutputContext = struct {
                 exe.addAssemblyFile(root_src);
                 for (case.sources.toSliceConst()) |src_file| {
-                    const expanded_src_path = os.path.join(
+                    const expanded_src_path = fs.path.join(
                         b.allocator,
                         [][]const u8{ b.cache_root, src_file.filename },
                     ) catch unreachable;
 @@ -507,7 +505,7 @@ pub const CompareOutputContext = struct {
                     }
                     for (case.sources.toSliceConst()) |src_file| {
-                        const expanded_src_path = os.path.join(
+                        const expanded_src_path = fs.path.join(
                             b.allocator,
                             [][]const u8{ b.cache_root, src_file.filename },
                         ) catch unreachable;
 @@ -538,7 +536,7 @@ pub const CompareOutputContext = struct {
                 }
                 for (case.sources.toSliceConst()) |src_file| {
-                    const expanded_src_path = os.path.join(
+                    const expanded_src_path = fs.path.join(
                         b.allocator,
                         [][]const u8{ b.cache_root, src_file.filename },
                     ) catch unreachable;
 @@ -633,7 +631,7 @@ pub const CompileErrorContext = struct {
             const self = @fieldParentPtr(CompileCmpOutputStep, "step", step);
             const b = self.context.b;
-            const root_src = os.path.join(
+            const root_src = fs.path.join(
                 b.allocator,
                 [][]const u8{ b.cache_root, self.case.sources.items[0].filename },
             ) catch unreachable;
 @@ -669,13 +667,13 @@ pub const CompileErrorContext = struct {
                 printInvocation(zig_args.toSliceConst());
             }
-            const child = os.ChildProcess.init(zig_args.toSliceConst(), b.allocator) catch unreachable;
+            const child = std.ChildProcess.init(zig_args.toSliceConst(), b.allocator) catch unreachable;
             defer child.deinit();
             child.env_map = b.env_map;
-            child.stdin_behavior = StdIo.Ignore;
+            child.stdin_behavior = .Ignore;
-            child.stdout_behavior = StdIo.Pipe;
+            child.stdout_behavior = .Pipe;
-            child.stderr_behavior = StdIo.Pipe;
+            child.stderr_behavior = .Pipe;
             child.spawn() catch |err| debug.panic("Unable to spawn {}: {}\n", zig_args.items[0], @errorName(err));
 @@ -692,7 +690,7 @@ pub const CompileErrorContext = struct {
                 debug.panic("Unable to spawn {}: {}\n", zig_args.items[0], @errorName(err));
             };
             switch (term) {
-                Term.Exited => |code| {
+                .Exited => |code| {
                     if (code == 0) {
                         printInvocation(zig_args.toSliceConst());
                         return error.CompilationIncorrectlySucceeded;
 @@ -823,7 +821,7 @@ pub const CompileErrorContext = struct {
             self.step.dependOn(&compile_and_cmp_errors.step);
             for (case.sources.toSliceConst()) |src_file| {
-                const expanded_src_path = os.path.join(
+                const expanded_src_path = fs.path.join(
                     b.allocator,
                     [][]const u8{ b.cache_root, src_file.filename },
                 ) catch unreachable;
 @@ -858,7 +856,7 @@ pub const BuildExamplesContext = struct {
         }
         var zig_args = ArrayList([]const u8).init(b.allocator);
-        const rel_zig_exe = os.path.relative(b.allocator, b.build_root, b.zig_exe) catch unreachable;
+        const rel_zig_exe = fs.path.relative(b.allocator, b.build_root, b.zig_exe) catch unreachable;
         zig_args.append(rel_zig_exe) catch unreachable;
         zig_args.append("build") catch unreachable;
 @@ -958,7 +956,7 @@ pub const TranslateCContext = struct {
             const self = @fieldParentPtr(TranslateCCmpOutputStep, "step", step);
             const b = self.context.b;
-            const root_src = os.path.join(
+            const root_src = fs.path.join(
                 b.allocator,
                 [][]const u8{ b.cache_root, self.case.sources.items[0].filename },
             ) catch unreachable;
 @@ -976,13 +974,13 @@ pub const TranslateCContext = struct {
                 printInvocation(zig_args.toSliceConst());
             }
-            const child = os.ChildProcess.init(zig_args.toSliceConst(), b.allocator) catch unreachable;
+            const child = std.ChildProcess.init(zig_args.toSliceConst(), b.allocator) catch unreachable;
             defer child.deinit();
             child.env_map = b.env_map;
-            child.stdin_behavior = StdIo.Ignore;
+            child.stdin_behavior = .Ignore;
-            child.stdout_behavior = StdIo.Pipe;
+            child.stdout_behavior = .Pipe;
-            child.stderr_behavior = StdIo.Pipe;
+            child.stderr_behavior = .Pipe;
             child.spawn() catch |err| debug.panic("Unable to spawn {}: {}\n", zig_args.toSliceConst()[0], @errorName(err));
 @@ -999,14 +997,14 @@ pub const TranslateCContext = struct {
                 debug.panic("Unable to spawn {}: {}\n", zig_args.toSliceConst()[0], @errorName(err));
             };
             switch (term) {
-                Term.Exited => |code| {
+                .Exited => |code| {
                     if (code != 0) {
                         warn("Compilation failed with exit code {}\n", code);
                         printInvocation(zig_args.toSliceConst());
                         return error.TestFailed;
                     }
                 },
-                Term.Signal => |code| {
+                .Signal => |code| {
                     warn("Compilation failed with signal {}\n", code);
                     printInvocation(zig_args.toSliceConst());
                     return error.TestFailed;
 @@ -1131,7 +1129,7 @@ pub const TranslateCContext = struct {
         self.step.dependOn(&translate_c_and_cmp.step);
         for (case.sources.toSliceConst()) |src_file| {
-            const expanded_src_path = os.path.join(
+            const expanded_src_path = fs.path.join(
                 b.allocator,
                 [][]const u8{ b.cache_root, src_file.filename },
             ) catch unreachable;
 @@ -1254,7 +1252,7 @@ pub const GenHContext = struct {
     pub fn addCase(self: *GenHContext, case: *const TestCase) void {
         const b = self.b;
-        const root_src = os.path.join(
+        const root_src = fs.path.join(
             b.allocator,
             [][]const u8{ b.cache_root, case.sources.items[0].filename },
         ) catch unreachable;
 @@ -1269,7 +1267,7 @@ pub const GenHContext = struct {
         obj.setBuildMode(mode);
         for (case.sources.toSliceConst()) |src_file| {
-            const expanded_src_path = os.path.join(
+            const expanded_src_path = fs.path.join(
                 b.allocator,
                 [][]const u8{ b.cache_root, src_file.filename },
             ) catch unreachable;

author	hryx <codroid@gmail.com> 2019-05-27 17:24:21-07:00
committer	hryx <codroid@gmail.com> 2019-05-27 17:24:21-07:00
log	e1f3eec9cc05535b3f3b81f2fb7cd65dd4d1e841
tree	5f408ed68a686491eaf759f9cbba02beac829b38
parent	2aa1c5da5dded6b1b346c3a1b57443f2c459ebe9
parent	3fccc0747903f0726d6cc8ee73832cb62f1304bb
signature	Commit is signed but in an unrecognized format.

...	@@ -1,5 +1,4 @@	...	@@ -1,5 +1,4 @@
1	const std = @import("std");	1	const std = @import("std");
2	const os = std.os;
3	const io = std.io;	2	const io = std.io;
4	const mem = std.mem;	3	const mem = std.mem;
5	const Allocator = mem.Allocator;	4	const Allocator = mem.Allocator;
...	@@ -54,7 +53,7 @@ pub const ZigCompiler = struct {	...	@@ -54,7 +53,7 @@ pub const ZigCompiler = struct {
54	};	53	};
55		54
56	var seed_bytes: [@sizeOf(u64)]u8 = undefined;	55	var seed_bytes: [@sizeOf(u64)]u8 = undefined;
57	try std.os.getRandomBytes(seed_bytes[0..]);	56	try std.crypto.randomBytes(seed_bytes[0..]);
58	const seed = mem.readIntNative(u64, &seed_bytes);	57	const seed = mem.readIntNative(u64, &seed_bytes);
59		58
60	return ZigCompiler{	59	return ZigCompiler{
...	@@ -302,6 +301,7 @@ pub const Compilation = struct {	...	@@ -302,6 +301,7 @@ pub const Compilation = struct {
302	InvalidUtf8,	301	InvalidUtf8,
303	BadPathName,	302	BadPathName,
304	DeviceBusy,	303	DeviceBusy,
		304	CurrentWorkingDirectoryUnlinked,
305	};	305	};
306		306
307	pub const Event = union(enum) {	307	pub const Event = union(enum) {
...	@@ -487,7 +487,7 @@ pub const Compilation = struct {	...	@@ -487,7 +487,7 @@ pub const Compilation = struct {
487	comp.name = try Buffer.init(comp.arena(), name);	487	comp.name = try Buffer.init(comp.arena(), name);
488	comp.llvm_triple = try target.getTriple(comp.arena());	488	comp.llvm_triple = try target.getTriple(comp.arena());
489	comp.llvm_target = try Target.llvmTargetFromTriple(comp.llvm_triple);	489	comp.llvm_target = try Target.llvmTargetFromTriple(comp.llvm_triple);
490	comp.zig_std_dir = try std.os.path.join(comp.arena(), [][]const u8{ zig_lib_dir, "std" });	490	comp.zig_std_dir = try std.fs.path.join(comp.arena(), [][]const u8{ zig_lib_dir, "std" });
491		491
492	const opt_level = switch (build_mode) {	492	const opt_level = switch (build_mode) {
493	builtin.Mode.Debug => llvm.CodeGenLevelNone,	493	builtin.Mode.Debug => llvm.CodeGenLevelNone,
...	@@ -529,8 +529,8 @@ pub const Compilation = struct {	...	@@ -529,8 +529,8 @@ pub const Compilation = struct {
529	defer comp.events.destroy();	529	defer comp.events.destroy();
530		530
531	if (root_src_path) \|root_src\| {	531	if (root_src_path) \|root_src\| {
532	const dirname = std.os.path.dirname(root_src) orelse ".";	532	const dirname = std.fs.path.dirname(root_src) orelse ".";
533	const basename = std.os.path.basename(root_src);	533	const basename = std.fs.path.basename(root_src);
534		534
535	comp.root_package = try Package.create(comp.arena(), dirname, basename);	535	comp.root_package = try Package.create(comp.arena(), dirname, basename);
536	comp.std_package = try Package.create(comp.arena(), comp.zig_std_dir, "std.zig");	536	comp.std_package = try Package.create(comp.arena(), comp.zig_std_dir, "std.zig");
...	@@ -558,7 +558,7 @@ pub const Compilation = struct {	...	@@ -558,7 +558,7 @@ pub const Compilation = struct {
558		558
559	if (comp.tmp_dir.getOrNull()) \|tmp_dir_result\| if (tmp_dir_result.*) \|tmp_dir\| {	559	if (comp.tmp_dir.getOrNull()) \|tmp_dir_result\| if (tmp_dir_result.*) \|tmp_dir\| {
560	// TODO evented I/O?	560	// TODO evented I/O?
561	os.deleteTree(comp.arena(), tmp_dir) catch {};	561	std.fs.deleteTree(comp.arena(), tmp_dir) catch {};
562	} else \|_\| {};	562	} else \|_\| {};
563	}	563	}
564		564
...	@@ -970,8 +970,8 @@ pub const Compilation = struct {	...	@@ -970,8 +970,8 @@ pub const Compilation = struct {
970	async fn initialCompile(self: *Compilation) !void {	970	async fn initialCompile(self: *Compilation) !void {
971	if (self.root_src_path) \|root_src_path\| {	971	if (self.root_src_path) \|root_src_path\| {
972	const root_scope = blk: {	972	const root_scope = blk: {
973	// TODO async/await os.path.real	973	// TODO async/await std.fs.realpath
974	const root_src_real_path = os.path.realAlloc(self.gpa(), root_src_path) catch \|err\| {	974	const root_src_real_path = std.fs.realpathAlloc(self.gpa(), root_src_path) catch \|err\| {
975	try self.addCompileErrorCli(root_src_path, "unable to open: {}", @errorName(err));	975	try self.addCompileErrorCli(root_src_path, "unable to open: {}", @errorName(err));
976	return;	976	return;
977	};	977	};
...	@@ -1196,7 +1196,7 @@ pub const Compilation = struct {	...	@@ -1196,7 +1196,7 @@ pub const Compilation = struct {
1196	const file_name = try std.fmt.allocPrint(self.gpa(), "{}{}", file_prefix[0..], suffix);	1196	const file_name = try std.fmt.allocPrint(self.gpa(), "{}{}", file_prefix[0..], suffix);
1197	defer self.gpa().free(file_name);	1197	defer self.gpa().free(file_name);
1198		1198
1199	const full_path = try os.path.join(self.gpa(), [][]const u8{ tmp_dir, file_name[0..] });	1199	const full_path = try std.fs.path.join(self.gpa(), [][]const u8{ tmp_dir, file_name[0..] });
1200	errdefer self.gpa().free(full_path);	1200	errdefer self.gpa().free(full_path);
1201		1201
1202	return Buffer.fromOwnedSlice(self.gpa(), full_path);	1202	return Buffer.fromOwnedSlice(self.gpa(), full_path);
...	@@ -1217,8 +1217,8 @@ pub const Compilation = struct {	...	@@ -1217,8 +1217,8 @@ pub const Compilation = struct {
1217	const zig_dir_path = try getZigDir(self.gpa());	1217	const zig_dir_path = try getZigDir(self.gpa());
1218	defer self.gpa().free(zig_dir_path);	1218	defer self.gpa().free(zig_dir_path);
1219		1219
1220	const tmp_dir = try os.path.join(self.arena(), [][]const u8{ zig_dir_path, comp_dir_name[0..] });	1220	const tmp_dir = try std.fs.path.join(self.arena(), [][]const u8{ zig_dir_path, comp_dir_name[0..] });
1221	try os.makePath(self.gpa(), tmp_dir);	1221	try std.fs.makePath(self.gpa(), tmp_dir);
1222	return tmp_dir;	1222	return tmp_dir;
1223	}	1223	}
1224		1224
...	@@ -1384,7 +1384,7 @@ async fn addFnToLinkSet(comp: Compilation, fn_val: Value.Fn) void {	...	@@ -1384,7 +1384,7 @@ async fn addFnToLinkSet(comp: Compilation, fn_val: Value.Fn) void {
1384	}	1384	}
1385		1385
1386	fn getZigDir(allocator: *mem.Allocator) ![]u8 {	1386	fn getZigDir(allocator: *mem.Allocator) ![]u8 {
1387	return os.getAppDataDir(allocator, "zig");	1387	return std.fs.getAppDataDir(allocator, "zig");
1388	}	1388	}
1389		1389
1390	async fn analyzeFnType(	1390	async fn analyzeFnType(

...	@@ -3,6 +3,7 @@ const builtin = @import("builtin");	...	@@ -3,6 +3,7 @@ const builtin = @import("builtin");
3	const event = std.event;	3	const event = std.event;
4	const Target = @import("target.zig").Target;	4	const Target = @import("target.zig").Target;
5	const c = @import("c.zig");	5	const c = @import("c.zig");
		6	const fs = std.fs;
6		7
7	/// See the render function implementation for documentation of the fields.	8	/// See the render function implementation for documentation of the fields.
8	pub const LibCInstallation = struct {	9	pub const LibCInstallation = struct {
...	@@ -30,7 +31,7 @@ pub const LibCInstallation = struct {	...	@@ -30,7 +31,7 @@ pub const LibCInstallation = struct {
30	self: *LibCInstallation,	31	self: *LibCInstallation,
31	allocator: *std.mem.Allocator,	32	allocator: *std.mem.Allocator,
32	libc_file: []const u8,	33	libc_file: []const u8,
33	stderr: *std.io.OutStream(std.os.File.WriteError),	34	stderr: *std.io.OutStream(fs.File.WriteError),
34	) !void {	35	) !void {
35	self.initEmpty();	36	self.initEmpty();
36		37
...	@@ -100,7 +101,7 @@ pub const LibCInstallation = struct {	...	@@ -100,7 +101,7 @@ pub const LibCInstallation = struct {
100	}	101	}
101	}	102	}
102		103
103	pub fn render(self: const LibCInstallation, out: std.io.OutStream(std.os.File.WriteError)) !void {	104	pub fn render(self: const LibCInstallation, out: std.io.OutStream(fs.File.WriteError)) !void {
104	@setEvalBranchQuota(4000);	105	@setEvalBranchQuota(4000);
105	try out.print(	106	try out.print(
106	\\# The directory that contains `stdlib.h`.	107	\\# The directory that contains `stdlib.h`.
...	@@ -148,7 +149,7 @@ pub const LibCInstallation = struct {	...	@@ -148,7 +149,7 @@ pub const LibCInstallation = struct {
148	errdefer if (windows_sdk) \|sdk\| c.zig_free_windows_sdk(@ptrCast(?[*]c.ZigWindowsSDK, sdk));	149	errdefer if (windows_sdk) \|sdk\| c.zig_free_windows_sdk(@ptrCast(?[*]c.ZigWindowsSDK, sdk));
149		150
150	switch (builtin.os) {	151	switch (builtin.os) {
151	builtin.Os.windows => {	152	.windows => {
152	var sdk: *c.ZigWindowsSDK = undefined;	153	var sdk: *c.ZigWindowsSDK = undefined;
153	switch (c.zig_find_windows_sdk(@ptrCast(?[]?[]c.ZigWindowsSDK, &sdk))) {	154	switch (c.zig_find_windows_sdk(@ptrCast(?[]?[]c.ZigWindowsSDK, &sdk))) {
154	c.ZigFindWindowsSdkError.None => {	155	c.ZigFindWindowsSdkError.None => {
...	@@ -166,13 +167,13 @@ pub const LibCInstallation = struct {	...	@@ -166,13 +167,13 @@ pub const LibCInstallation = struct {
166	c.ZigFindWindowsSdkError.PathTooLong => return error.NotFound,	167	c.ZigFindWindowsSdkError.PathTooLong => return error.NotFound,
167	}	168	}
168	},	169	},
169	builtin.Os.linux => {	170	.linux => {
170	try group.call(findNativeIncludeDirLinux, self, loop);	171	try group.call(findNativeIncludeDirLinux, self, loop);
171	try group.call(findNativeLibDirLinux, self, loop);	172	try group.call(findNativeLibDirLinux, self, loop);
172	try group.call(findNativeStaticLibDir, self, loop);	173	try group.call(findNativeStaticLibDir, self, loop);
173	try group.call(findNativeDynamicLinker, self, loop);	174	try group.call(findNativeDynamicLinker, self, loop);
174	},	175	},
175	builtin.Os.macosx, builtin.Os.freebsd, builtin.Os.netbsd => {	176	.macosx, .freebsd, .netbsd => {
176	self.include_dir = try std.mem.dupe(loop.allocator, u8, "/usr/include");	177	self.include_dir = try std.mem.dupe(loop.allocator, u8, "/usr/include");
177	},	178	},
178	else => @compileError("unimplemented: find libc for this OS"),	179	else => @compileError("unimplemented: find libc for this OS"),
...	@@ -181,7 +182,7 @@ pub const LibCInstallation = struct {	...	@@ -181,7 +182,7 @@ pub const LibCInstallation = struct {
181	}	182	}
182		183
183	async fn findNativeIncludeDirLinux(self: LibCInstallation, loop: event.Loop) !void {	184	async fn findNativeIncludeDirLinux(self: LibCInstallation, loop: event.Loop) !void {
184	const cc_exe = std.os.getEnvPosix("CC") orelse "cc";	185	const cc_exe = std.os.getenv("CC") orelse "cc";
185	const argv = []const []const u8{	186	const argv = []const []const u8{
186	cc_exe,	187	cc_exe,
187	"-E",	188	"-E",
...	@@ -190,7 +191,7 @@ pub const LibCInstallation = struct {	...	@@ -190,7 +191,7 @@ pub const LibCInstallation = struct {
190	"/dev/null",	191	"/dev/null",
191	};	192	};
192	// TODO make this use event loop	193	// TODO make this use event loop
193	const errorable_result = std.os.ChildProcess.exec(loop.allocator, argv, null, null, 1024 * 1024);	194	const errorable_result = std.ChildProcess.exec(loop.allocator, argv, null, null, 1024 * 1024);
194	const exec_result = if (std.debug.runtime_safety) blk: {	195	const exec_result = if (std.debug.runtime_safety) blk: {
195	break :blk errorable_result catch unreachable;	196	break :blk errorable_result catch unreachable;
196	} else blk: {	197	} else blk: {
...	@@ -205,7 +206,7 @@ pub const LibCInstallation = struct {	...	@@ -205,7 +206,7 @@ pub const LibCInstallation = struct {
205	}	206	}
206		207
207	switch (exec_result.term) {	208	switch (exec_result.term) {
208	std.os.ChildProcess.Term.Exited => \|code\| {	209	std.ChildProcess.Term.Exited => \|code\| {
209	if (code != 0) return error.CCompilerExitCode;	210	if (code != 0) return error.CCompilerExitCode;
210	},	211	},
211	else => {	212	else => {
...	@@ -230,7 +231,7 @@ pub const LibCInstallation = struct {	...	@@ -230,7 +231,7 @@ pub const LibCInstallation = struct {
230	while (path_i < search_paths.len) : (path_i += 1) {	231	while (path_i < search_paths.len) : (path_i += 1) {
231	const search_path_untrimmed = search_paths.at(search_paths.len - path_i - 1);	232	const search_path_untrimmed = search_paths.at(search_paths.len - path_i - 1);
232	const search_path = std.mem.trimLeft(u8, search_path_untrimmed, " ");	233	const search_path = std.mem.trimLeft(u8, search_path_untrimmed, " ");
233	const stdlib_path = try std.os.path.join(loop.allocator, [][]const u8{ search_path, "stdlib.h" });	234	const stdlib_path = try fs.path.join(loop.allocator, [][]const u8{ search_path, "stdlib.h" });
234	defer loop.allocator.free(stdlib_path);	235	defer loop.allocator.free(stdlib_path);
235		236
236	if (try fileExists(stdlib_path)) {	237	if (try fileExists(stdlib_path)) {
...	@@ -254,7 +255,7 @@ pub const LibCInstallation = struct {	...	@@ -254,7 +255,7 @@ pub const LibCInstallation = struct {
254	const stream = &std.io.BufferOutStream.init(&result_buf).stream;	255	const stream = &std.io.BufferOutStream.init(&result_buf).stream;
255	try stream.print("{}\\Include\\{}\\ucrt", search.path, search.version);	256	try stream.print("{}\\Include\\{}\\ucrt", search.path, search.version);
256		257
257	const stdlib_path = try std.os.path.join(	258	const stdlib_path = try fs.path.join(
258	loop.allocator,	259	loop.allocator,
259	[][]const u8{ result_buf.toSliceConst(), "stdlib.h" },	260	[][]const u8{ result_buf.toSliceConst(), "stdlib.h" },
260	);	261	);
...	@@ -286,7 +287,7 @@ pub const LibCInstallation = struct {	...	@@ -286,7 +287,7 @@ pub const LibCInstallation = struct {
286	builtin.Arch.aarch64 => try stream.write("arm"),	287	builtin.Arch.aarch64 => try stream.write("arm"),
287	else => return error.UnsupportedArchitecture,	288	else => return error.UnsupportedArchitecture,
288	}	289	}
289	const ucrt_lib_path = try std.os.path.join(	290	const ucrt_lib_path = try fs.path.join(
290	loop.allocator,	291	loop.allocator,
291	[][]const u8{ result_buf.toSliceConst(), "ucrt.lib" },	292	[][]const u8{ result_buf.toSliceConst(), "ucrt.lib" },
292	);	293	);
...	@@ -364,7 +365,7 @@ pub const LibCInstallation = struct {	...	@@ -364,7 +365,7 @@ pub const LibCInstallation = struct {
364	builtin.Arch.aarch64 => try stream.write("arm\\"),	365	builtin.Arch.aarch64 => try stream.write("arm\\"),
365	else => return error.UnsupportedArchitecture,	366	else => return error.UnsupportedArchitecture,
366	}	367	}
367	const kernel32_path = try std.os.path.join(	368	const kernel32_path = try fs.path.join(
368	loop.allocator,	369	loop.allocator,
369	[][]const u8{ result_buf.toSliceConst(), "kernel32.lib" },	370	[][]const u8{ result_buf.toSliceConst(), "kernel32.lib" },
370	);	371	);
...	@@ -391,14 +392,14 @@ pub const LibCInstallation = struct {	...	@@ -391,14 +392,14 @@ pub const LibCInstallation = struct {
391		392
392	/// caller owns returned memory	393	/// caller owns returned memory
393	async fn ccPrintFileName(loop: *event.Loop, o_file: []const u8, want_dirname: bool) ![]u8 {	394	async fn ccPrintFileName(loop: *event.Loop, o_file: []const u8, want_dirname: bool) ![]u8 {
394	const cc_exe = std.os.getEnvPosix("CC") orelse "cc";	395	const cc_exe = std.os.getenv("CC") orelse "cc";
395	const arg1 = try std.fmt.allocPrint(loop.allocator, "-print-file-name={}", o_file);	396	const arg1 = try std.fmt.allocPrint(loop.allocator, "-print-file-name={}", o_file);
396	defer loop.allocator.free(arg1);	397	defer loop.allocator.free(arg1);
397	const argv = []const []const u8{ cc_exe, arg1 };	398	const argv = []const []const u8{ cc_exe, arg1 };
398		399
399	// TODO This simulates evented I/O for the child process exec	400	// TODO This simulates evented I/O for the child process exec
400	await (async loop.yield() catch unreachable);	401	await (async loop.yield() catch unreachable);
401	const errorable_result = std.os.ChildProcess.exec(loop.allocator, argv, null, null, 1024 * 1024);	402	const errorable_result = std.ChildProcess.exec(loop.allocator, argv, null, null, 1024 * 1024);
402	const exec_result = if (std.debug.runtime_safety) blk: {	403	const exec_result = if (std.debug.runtime_safety) blk: {
403	break :blk errorable_result catch unreachable;	404	break :blk errorable_result catch unreachable;
404	} else blk: {	405	} else blk: {
...	@@ -412,7 +413,7 @@ async fn ccPrintFileName(loop: *event.Loop, o_file: []const u8, want_dirname: bo	...	@@ -412,7 +413,7 @@ async fn ccPrintFileName(loop: *event.Loop, o_file: []const u8, want_dirname: bo
412	loop.allocator.free(exec_result.stderr);	413	loop.allocator.free(exec_result.stderr);
413	}	414	}
414	switch (exec_result.term) {	415	switch (exec_result.term) {
415	std.os.ChildProcess.Term.Exited => \|code\| {	416	.Exited => \|code\| {
416	if (code != 0) return error.CCompilerExitCode;	417	if (code != 0) return error.CCompilerExitCode;
417	},	418	},
418	else => {	419	else => {
...	@@ -421,7 +422,7 @@ async fn ccPrintFileName(loop: *event.Loop, o_file: []const u8, want_dirname: bo	...	@@ -421,7 +422,7 @@ async fn ccPrintFileName(loop: *event.Loop, o_file: []const u8, want_dirname: bo
421	}	422	}
422	var it = std.mem.tokenize(exec_result.stdout, "\n\r");	423	var it = std.mem.tokenize(exec_result.stdout, "\n\r");
423	const line = it.next() orelse return error.LibCRuntimeNotFound;	424	const line = it.next() orelse return error.LibCRuntimeNotFound;
424	const dirname = std.os.path.dirname(line) orelse return error.LibCRuntimeNotFound;	425	const dirname = fs.path.dirname(line) orelse return error.LibCRuntimeNotFound;
425		426
426	if (want_dirname) {	427	if (want_dirname) {
427	return std.mem.dupe(loop.allocator, u8, dirname);	428	return std.mem.dupe(loop.allocator, u8, dirname);
...	@@ -459,10 +460,10 @@ fn fillSearch(search_buf: [2]Search, sdk: c.ZigWindowsSDK) []Search {	...	@@ -459,10 +460,10 @@ fn fillSearch(search_buf: [2]Search, sdk: c.ZigWindowsSDK) []Search {
459	}	460	}
460		461
461	fn fileExists(path: []const u8) !bool {	462	fn fileExists(path: []const u8) !bool {
462	if (std.os.File.access(path)) \|_\| {	463	if (fs.File.access(path)) \|_\| {
463	return true;	464	return true;
464	} else \|err\| switch (err) {	465	} else \|err\| switch (err) {
465	error.FileNotFound, error.PermissionDenied => return false,	466	error.FileNotFound => return false,
466	else => return error.FileSystem,	467	else => return error.FileSystem,
467	}	468	}
468	}	469	}

...	@@ -302,7 +302,7 @@ fn constructLinkerArgsElf(ctx: *Context) !void {	...	@@ -302,7 +302,7 @@ fn constructLinkerArgsElf(ctx: *Context) !void {
302	try ctx.args.append(c"--allow-shlib-undefined");	302	try ctx.args.append(c"--allow-shlib-undefined");
303	}	303	}
304		304
305	if (ctx.comp.target.getOs() == builtin.Os.zen) {	305	if (ctx.comp.target.getOs() == .zen) {
306	try ctx.args.append(c"-e");	306	try ctx.args.append(c"-e");
307	try ctx.args.append(c"_start");	307	try ctx.args.append(c"_start");
308		308
...	@@ -311,7 +311,7 @@ fn constructLinkerArgsElf(ctx: *Context) !void {	...	@@ -311,7 +311,7 @@ fn constructLinkerArgsElf(ctx: *Context) !void {
311	}	311	}
312		312
313	fn addPathJoin(ctx: *Context, dirname: []const u8, basename: []const u8) !void {	313	fn addPathJoin(ctx: *Context, dirname: []const u8, basename: []const u8) !void {
314	const full_path = try std.os.path.join(&ctx.arena.allocator, [][]const u8{ dirname, basename });	314	const full_path = try std.fs.path.join(&ctx.arena.allocator, [][]const u8{ dirname, basename });
315	const full_path_with_null = try std.cstr.addNullByte(&ctx.arena.allocator, full_path);	315	const full_path_with_null = try std.cstr.addNullByte(&ctx.arena.allocator, full_path);
316	try ctx.args.append(full_path_with_null.ptr);	316	try ctx.args.append(full_path_with_null.ptr);
317	}	317	}
...	@@ -668,7 +668,7 @@ const DarwinPlatform = struct {	...	@@ -668,7 +668,7 @@ const DarwinPlatform = struct {
668	break :blk ver;	668	break :blk ver;
669	},	669	},
670	Compilation.DarwinVersionMin.None => blk: {	670	Compilation.DarwinVersionMin.None => blk: {
671	assert(comp.target.getOs() == builtin.Os.macosx);	671	assert(comp.target.getOs() == .macosx);
672	result.kind = Kind.MacOS;	672	result.kind = Kind.MacOS;
673	break :blk "10.10";	673	break :blk "10.10";
674	},	674	},

...	@@ -186,13 +186,13 @@ test "std.atomic.Queue" {	...	@@ -186,13 +186,13 @@ test "std.atomic.Queue" {
186	}	186	}
187	}	187	}
188	} else {	188	} else {
189	var putters: [put_thread_count]*std.os.Thread = undefined;	189	var putters: [put_thread_count]*std.Thread = undefined;
190	for (putters) \|*t\| {	190	for (putters) \|*t\| {
191	t.* = try std.os.spawnThread(&context, startPuts);	191	t.* = try std.Thread.spawn(&context, startPuts);
192	}	192	}
193	var getters: [put_thread_count]*std.os.Thread = undefined;	193	var getters: [put_thread_count]*std.Thread = undefined;
194	for (getters) \|*t\| {	194	for (getters) \|*t\| {
195	t.* = try std.os.spawnThread(&context, startGets);	195	t.* = try std.Thread.spawn(&context, startGets);
196	}	196	}
197		197
198	for (putters) \|t\|	198	for (putters) \|t\|
...	@@ -220,7 +220,7 @@ fn startPuts(ctx: *Context) u8 {	...	@@ -220,7 +220,7 @@ fn startPuts(ctx: *Context) u8 {
220	var put_count: usize = puts_per_thread;	220	var put_count: usize = puts_per_thread;
221	var r = std.rand.DefaultPrng.init(0xdeadbeef);	221	var r = std.rand.DefaultPrng.init(0xdeadbeef);
222	while (put_count != 0) : (put_count -= 1) {	222	while (put_count != 0) : (put_count -= 1) {
223	std.os.time.sleep(1); // let the os scheduler be our fuzz	223	std.time.sleep(1); // let the os scheduler be our fuzz
224	const x = @bitCast(i32, r.random.scalar(u32));	224	const x = @bitCast(i32, r.random.scalar(u32));
225	const node = ctx.allocator.create(Queue(i32).Node) catch unreachable;	225	const node = ctx.allocator.create(Queue(i32).Node) catch unreachable;
226	node.* = Queue(i32).Node{	226	node.* = Queue(i32).Node{
...	@@ -239,7 +239,7 @@ fn startGets(ctx: *Context) u8 {	...	@@ -239,7 +239,7 @@ fn startGets(ctx: *Context) u8 {
239	const last = @atomicLoad(u8, &ctx.puts_done, builtin.AtomicOrder.SeqCst) == 1;	239	const last = @atomicLoad(u8, &ctx.puts_done, builtin.AtomicOrder.SeqCst) == 1;
240		240
241	while (ctx.queue.get()) \|node\| {	241	while (ctx.queue.get()) \|node\| {
242	std.os.time.sleep(1); // let the os scheduler be our fuzz	242	std.time.sleep(1); // let the os scheduler be our fuzz
243	_ = @atomicRmw(isize, &ctx.get_sum, builtin.AtomicRmwOp.Add, node.data, builtin.AtomicOrder.SeqCst);	243	_ = @atomicRmw(isize, &ctx.get_sum, builtin.AtomicRmwOp.Add, node.data, builtin.AtomicOrder.SeqCst);
244	_ = @atomicRmw(usize, &ctx.get_count, builtin.AtomicRmwOp.Add, 1, builtin.AtomicOrder.SeqCst);	244	_ = @atomicRmw(usize, &ctx.get_count, builtin.AtomicRmwOp.Add, 1, builtin.AtomicOrder.SeqCst);
245	}	245	}

...	@@ -120,13 +120,13 @@ test "std.atomic.stack" {	...	@@ -120,13 +120,13 @@ test "std.atomic.stack" {
120	}	120	}
121	}	121	}
122	} else {	122	} else {
123	var putters: [put_thread_count]*std.os.Thread = undefined;	123	var putters: [put_thread_count]*std.Thread = undefined;
124	for (putters) \|*t\| {	124	for (putters) \|*t\| {
125	t.* = try std.os.spawnThread(&context, startPuts);	125	t.* = try std.Thread.spawn(&context, startPuts);
126	}	126	}
127	var getters: [put_thread_count]*std.os.Thread = undefined;	127	var getters: [put_thread_count]*std.Thread = undefined;
128	for (getters) \|*t\| {	128	for (getters) \|*t\| {
129	t.* = try std.os.spawnThread(&context, startGets);	129	t.* = try std.Thread.spawn(&context, startGets);
130	}	130	}
131		131
132	for (putters) \|t\|	132	for (putters) \|t\|
...	@@ -154,7 +154,7 @@ fn startPuts(ctx: *Context) u8 {	...	@@ -154,7 +154,7 @@ fn startPuts(ctx: *Context) u8 {
154	var put_count: usize = puts_per_thread;	154	var put_count: usize = puts_per_thread;
155	var r = std.rand.DefaultPrng.init(0xdeadbeef);	155	var r = std.rand.DefaultPrng.init(0xdeadbeef);
156	while (put_count != 0) : (put_count -= 1) {	156	while (put_count != 0) : (put_count -= 1) {
157	std.os.time.sleep(1); // let the os scheduler be our fuzz	157	std.time.sleep(1); // let the os scheduler be our fuzz
158	const x = @bitCast(i32, r.random.scalar(u32));	158	const x = @bitCast(i32, r.random.scalar(u32));
159	const node = ctx.allocator.create(Stack(i32).Node) catch unreachable;	159	const node = ctx.allocator.create(Stack(i32).Node) catch unreachable;
160	node.* = Stack(i32).Node{	160	node.* = Stack(i32).Node{
...	@@ -172,7 +172,7 @@ fn startGets(ctx: *Context) u8 {	...	@@ -172,7 +172,7 @@ fn startGets(ctx: *Context) u8 {
172	const last = @atomicLoad(u8, &ctx.puts_done, builtin.AtomicOrder.SeqCst) == 1;	172	const last = @atomicLoad(u8, &ctx.puts_done, builtin.AtomicOrder.SeqCst) == 1;
173		173
174	while (ctx.stack.pop()) \|node\| {	174	while (ctx.stack.pop()) \|node\| {
175	std.os.time.sleep(1); // let the os scheduler be our fuzz	175	std.time.sleep(1); // let the os scheduler be our fuzz
176	_ = @atomicRmw(isize, &ctx.get_sum, builtin.AtomicRmwOp.Add, node.data, builtin.AtomicOrder.SeqCst);	176	_ = @atomicRmw(isize, &ctx.get_sum, builtin.AtomicRmwOp.Add, node.data, builtin.AtomicOrder.SeqCst);
177	_ = @atomicRmw(usize, &ctx.get_count, builtin.AtomicRmwOp.Add, 1, builtin.AtomicOrder.SeqCst);	177	_ = @atomicRmw(usize, &ctx.get_count, builtin.AtomicRmwOp.Add, 1, builtin.AtomicOrder.SeqCst);
178	}	178	}

...	@@ -8,7 +8,7 @@ pub fn SeekableStream(comptime SeekErrorType: type, comptime GetSeekPosErrorType	...	@@ -8,7 +8,7 @@ pub fn SeekableStream(comptime SeekErrorType: type, comptime GetSeekPosErrorType
8	pub const GetSeekPosError = GetSeekPosErrorType;	8	pub const GetSeekPosError = GetSeekPosErrorType;
9		9
10	seekToFn: fn (self: *Self, pos: u64) SeekError!void,	10	seekToFn: fn (self: *Self, pos: u64) SeekError!void,
11	seekForwardFn: fn (self: *Self, pos: i64) SeekError!void,	11	seekByFn: fn (self: *Self, pos: i64) SeekError!void,
12		12
13	getPosFn: fn (self: *Self) GetSeekPosError!u64,	13	getPosFn: fn (self: *Self) GetSeekPosError!u64,
14	getEndPosFn: fn (self: *Self) GetSeekPosError!u64,	14	getEndPosFn: fn (self: *Self) GetSeekPosError!u64,
...	@@ -17,8 +17,8 @@ pub fn SeekableStream(comptime SeekErrorType: type, comptime GetSeekPosErrorType	...	@@ -17,8 +17,8 @@ pub fn SeekableStream(comptime SeekErrorType: type, comptime GetSeekPosErrorType
17	return self.seekToFn(self, pos);	17	return self.seekToFn(self, pos);
18	}	18	}
19		19
20	pub fn seekForward(self: *Self, amt: i64) SeekError!void {	20	pub fn seekBy(self: *Self, amt: i64) SeekError!void {
21	return self.seekForwardFn(self, amt);	21	return self.seekByFn(self, amt);
22	}	22	}
23		23
24	pub fn getEndPos(self: *Self) GetSeekPosError!u64 {	24	pub fn getEndPos(self: *Self) GetSeekPosError!u64 {
...	@@ -52,7 +52,7 @@ pub const SliceSeekableInStream = struct {	...	@@ -52,7 +52,7 @@ pub const SliceSeekableInStream = struct {
52	.stream = Stream{ .readFn = readFn },	52	.stream = Stream{ .readFn = readFn },
53	.seekable_stream = SeekableInStream{	53	.seekable_stream = SeekableInStream{
54	.seekToFn = seekToFn,	54	.seekToFn = seekToFn,
55	.seekForwardFn = seekForwardFn,	55	.seekByFn = seekByFn,
56	.getEndPosFn = getEndPosFn,	56	.getEndPosFn = getEndPosFn,
57	.getPosFn = getPosFn,	57	.getPosFn = getPosFn,
58	},	58	},
...	@@ -77,7 +77,7 @@ pub const SliceSeekableInStream = struct {	...	@@ -77,7 +77,7 @@ pub const SliceSeekableInStream = struct {
77	self.pos = usize_pos;	77	self.pos = usize_pos;
78	}	78	}
79		79
80	fn seekForwardFn(in_stream: *SeekableInStream, amt: i64) SeekError!void {	80	fn seekByFn(in_stream: *SeekableInStream, amt: i64) SeekError!void {
81	const self = @fieldParentPtr(Self, "seekable_stream", in_stream);	81	const self = @fieldParentPtr(Self, "seekable_stream", in_stream);
82		82
83	if (amt < 0) {	83	if (amt < 0) {

...	@@ -62,7 +62,7 @@ extern fn WinMainCRTStartup() noreturn {	...	@@ -62,7 +62,7 @@ extern fn WinMainCRTStartup() noreturn {
62	if (!builtin.single_threaded) {	62	if (!builtin.single_threaded) {
63	_ = @import("bootstrap_windows_tls.zig");	63	_ = @import("bootstrap_windows_tls.zig");
64	}	64	}
65	std.os.windows.ExitProcess(callMain());	65	std.os.windows.kernel32.ExitProcess(callMain());
66	}	66	}
67		67
68	// TODO https://github.com/ziglang/zig/issues/265	68	// TODO https://github.com/ziglang/zig/issues/265
...	@@ -78,10 +78,10 @@ fn posixCallMainAndExit() noreturn {	...	@@ -78,10 +78,10 @@ fn posixCallMainAndExit() noreturn {
78	while (envp_optional[envp_count]) \|_\| : (envp_count += 1) {}	78	while (envp_optional[envp_count]) \|_\| : (envp_count += 1) {}
79	const envp = @ptrCast([][]u8, envp_optional)[0..envp_count];	79	const envp = @ptrCast([][]u8, envp_optional)[0..envp_count];
80		80
81	if (builtin.os == builtin.Os.linux) {	81	if (builtin.os == .linux) {
82	// Find the beginning of the auxiliary vector	82	// Find the beginning of the auxiliary vector
83	const auxv = @ptrCast([*]std.elf.Auxv, envp.ptr + envp_count + 1);	83	const auxv = @ptrCast([*]std.elf.Auxv, envp.ptr + envp_count + 1);
84	std.os.linux_elf_aux_maybe = auxv;	84	std.os.linux.elf_aux_maybe = auxv;
85	// Initialize the TLS area	85	// Initialize the TLS area
86	std.os.linux.tls.initTLS();	86	std.os.linux.tls.initTLS();
87		87
...	@@ -92,14 +92,14 @@ fn posixCallMainAndExit() noreturn {	...	@@ -92,14 +92,14 @@ fn posixCallMainAndExit() noreturn {
92	}	92	}
93	}	93	}
94		94
95	std.os.posix.exit(callMainWithArgs(argc, argv, envp));	95	std.os.exit(callMainWithArgs(argc, argv, envp));
96	}	96	}
97		97
98	// This is marked inline because for some reason LLVM in release mode fails to inline it,	98	// This is marked inline because for some reason LLVM in release mode fails to inline it,
99	// and we want fewer call frames in stack traces.	99	// and we want fewer call frames in stack traces.
100	inline fn callMainWithArgs(argc: usize, argv: [][]u8, envp: [][*]u8) u8 {	100	inline fn callMainWithArgs(argc: usize, argv: [][]u8, envp: [][*]u8) u8 {
101	std.os.ArgIteratorPosix.raw = argv[0..argc];	101	std.os.argv = argv[0..argc];
102	std.os.posix_environ_raw = envp;	102	std.os.environ = envp;
103	return callMain();	103	return callMain();
104	}	104	}
105		105

...	@@ -377,7 +377,7 @@ pub fn addCases(cases: *tests.CompareOutputContext) void {	...	@@ -377,7 +377,7 @@ pub fn addCases(cases: *tests.CompareOutputContext) void {
377	\\ stdout.print("before\n") catch unreachable;	377	\\ stdout.print("before\n") catch unreachable;
378	\\ defer stdout.print("defer1\n") catch unreachable;	378	\\ defer stdout.print("defer1\n") catch unreachable;
379	\\ defer stdout.print("defer2\n") catch unreachable;	379	\\ defer stdout.print("defer2\n") catch unreachable;
380	\\ var args_it = @import("std").os.args();	380	\\ var args_it = @import("std").process.args();
381	\\ if (args_it.skip() and !args_it.skip()) return;	381	\\ if (args_it.skip() and !args_it.skip()) return;
382	\\ defer stdout.print("defer3\n") catch unreachable;	382	\\ defer stdout.print("defer3\n") catch unreachable;
383	\\ stdout.print("after\n") catch unreachable;	383	\\ stdout.print("after\n") catch unreachable;
...	@@ -444,7 +444,7 @@ pub fn addCases(cases: *tests.CompareOutputContext) void {	...	@@ -444,7 +444,7 @@ pub fn addCases(cases: *tests.CompareOutputContext) void {
444	\\const allocator = std.debug.global_allocator;	444	\\const allocator = std.debug.global_allocator;
445	\\	445	\\
446	\\pub fn main() !void {	446	\\pub fn main() !void {
447	\\ var args_it = os.args();	447	\\ var args_it = std.process.args();
448	\\ var stdout_file = try io.getStdOut();	448	\\ var stdout_file = try io.getStdOut();
449	\\ var stdout_adapter = stdout_file.outStream();	449	\\ var stdout_adapter = stdout_file.outStream();
450	\\ const stdout = &stdout_adapter.stream;	450	\\ const stdout = &stdout_adapter.stream;
...	@@ -485,7 +485,7 @@ pub fn addCases(cases: *tests.CompareOutputContext) void {	...	@@ -485,7 +485,7 @@ pub fn addCases(cases: *tests.CompareOutputContext) void {
485	\\const allocator = std.debug.global_allocator;	485	\\const allocator = std.debug.global_allocator;
486	\\	486	\\
487	\\pub fn main() !void {	487	\\pub fn main() !void {
488	\\ var args_it = os.args();	488	\\ var args_it = std.process.args();
489	\\ var stdout_file = try io.getStdOut();	489	\\ var stdout_file = try io.getStdOut();
490	\\ var stdout_adapter = stdout_file.outStream();	490	\\ var stdout_adapter = stdout_file.outStream();
491	\\ const stdout = &stdout_adapter.stream;	491	\\ const stdout = &stdout_adapter.stream;

Merge branch 'master' into translate-c-userland