lib/std/Io.zig             |  11 +-
 lib/std/Io/Dir.zig         |   2 -
 lib/std/Io/File.zig        |  24 +-
 lib/std/Io/File/Reader.zig |  25 +-
 lib/std/Io/File/Writer.zig | 538 ++++---------------
 lib/std/Io/Threaded.zig    | 888 +++++++++++++++++++++++++++++++-
 lib/std/os.zig             |   1 -
 lib/std/os/freebsd.zig     |  50 --
 lib/std/os/linux.zig       | 162 ------
 lib/std/os/linux/test.zig  |   8 -
 lib/std/posix.zig          | 166 ------
 11 files changed, 1008 insertions(+), 867 deletions(-)