lib/std/Io.zig          |   4 +-
 lib/std/Io/Dir.zig      | 115 ++++++++++++++------------------
 lib/std/Io/File.zig     |  49 ++++++++++++++
 lib/std/Io/Threaded.zig |  66 +++++++++++++-----
 lib/std/fs/test.zig     | 110 +++++++++++++++---------------
 lib/std/os/windows.zig  |   2 +
 lib/std/posix.zig       |  24 +++----
 lib/std/posix/test.zig  |   2 +-
 8 files changed, 220 insertions(+), 152 deletions(-)