lib/std/Io.zig                |   7 +
 lib/std/Io/File.zig           |  49 ++-
 lib/std/Io/File/MemoryMap.zig |  79 +++++
 lib/std/Io/File/Reader.zig    |   4 +-
 lib/std/Io/Threaded.zig       | 522 ++++++++++++++++++++++++++++----
 lib/std/posix.zig             |   2 +-
 lib/std/process.zig           |  15 +-
 lib/std/zig/system.zig        |   1 -
 src/link/MappedFile.zig       |   1 -
 9 files changed, 597 insertions(+), 83 deletions(-)