Commit 5eaacf1ce9b2b99f1f29bf51a663291329a1793e | zig

author	Jakub Konka <kubkon@jakubkonka.com> 2022-12-02 10:20:05+01:00
committer	Andrew Kelley <andrew@ziglang.org> 2022-12-02 12:24:15-05:00
log	5eaacf1ce9b2b99f1f29bf51a663291329a1793e
tree	d64ba2a49b7ce2c283f70d7dd997c20581b18573
parent	16dc86a49e1e92d036d196be40a4fc073314bcf7

1 files changed, 11 insertions(+), 14 deletions(-)

lib/std/zig/system/windows.zig+11-14

...	...	@@ -1,5 +1,6 @@
1	1	const std = @import("std");
2	2	const builtin = @import("builtin");
	3	const assert = std.debug.assert;
3	4	const mem = std.mem;
4	5	const Target = std.Target;
5	6
...	...	@@ -89,6 +90,8 @@ fn getCpuInfoFromRegistry(core: usize, args: anytype) !void {
89	90	.DefaultLength = 0,
90	91	};
91	92
	93	var tmp_bufs: [fields_info.len][max_value_len]u8 align(@alignOf(std.os.windows.UNICODE_STRING)) = undefined;
	94
92	95	inline for (fields_info) \|field, i\| {
93	96	const ctx: *anyopaque = blk: {
94	97	switch (@field(args, field.name).value_type) {
...	...	@@ -96,26 +99,20 @@ fn getCpuInfoFromRegistry(core: usize, args: anytype) !void {
96	99	REG.EXPAND_SZ,
97	100	REG.MULTI_SZ,
98	101	=> {
99		var buf: [max_value_len / 2]u16 = undefined;
100		var unicode = std.os.windows.UNICODE_STRING{
	102	comptime assert(@sizeOf(std.os.windows.UNICODE_STRING) % 2 == 0);
	103	const unicode = @ptrCast(*std.os.windows.UNICODE_STRING, &tmp_bufs[i]);
	104	unicode.* = .{
101	105	.Length = 0,
102		.MaximumLength = max_value_len,
103		.Buffer = &buf,
	106	.MaximumLength = max_value_len - @sizeOf(std.os.windows.UNICODE_STRING),
	107	.Buffer = @ptrCast([*]u16, tmp_bufs[i][@sizeOf(std.os.windows.UNICODE_STRING)..]),
104	108	};
105		break :blk &unicode;
	109	break :blk unicode;
106	110	},
107	111
108	112	REG.DWORD,
109	113	REG.DWORD_BIG_ENDIAN,
110		=> {
111		var buf: [4]u8 = undefined;
112		break :blk &buf;
113		},
114
115		REG.QWORD => {
116		var buf: [8]u8 = undefined;
117		break :blk &buf;
118		},
	114	REG.QWORD,
	115	=> break :blk &tmp_bufs[i],
119	116
120	117	else => unreachable,
121	118	}