lib/std/Io.zig                |  2 +-
 lib/std/Io/File.zig           |  6 +-
 lib/std/Io/File/MemoryMap.zig | 29 +++++-----
 lib/std/Io/Threaded.zig       | 98 ++++++++++++++++----------------
 lib/std/Io/Threaded/test.zig  | 57 +++++++++++++++++++
 lib/std/Io/test.zig           | 27 +++++++--
 6 files changed, 145 insertions(+), 74 deletions(-)