lib/std/Io.zig                |   7 +
 lib/std/Io/File.zig           |  62 ++-
 lib/std/Io/File/MemoryMap.zig | 119 +++++
 lib/std/Io/File/Reader.zig    |   5 +-
 lib/std/Io/Threaded.zig       | 753 ++++++++++++++++++++++++++++----
 lib/std/Io/Threaded/test.zig  |  62 +++
 lib/std/Io/test.zig           |  56 +++
 lib/std/c.zig                 |   4 +-
 lib/std/fs/test.zig           |  13 +-
 lib/std/heap.zig              |   5 +-
 lib/std/os/windows.zig        |  16 +
 lib/std/os/windows/ntdll.zig  |   5 +
 lib/std/posix.zig             |   5 +-
 lib/std/process.zig           |  24 +-
 lib/std/zig/system.zig        |   1 -
 src/link/Dwarf.zig            |   4 +
 src/link/MappedFile.zig       |   1 -
 17 files changed, 1014 insertions(+), 128 deletions(-)