lib/std/Io/File.zig          |  15 ++++
 lib/std/Io/Threaded.zig      | 123 +++++++++++++++++++++-----------
 lib/std/Progress.zig         |   1 +
 lib/std/os/windows/ntdll.zig |   2 +-
 4 files changed, 100 insertions(+), 41 deletions(-)