std/c/darwin.zig  |  56 +++++++
 std/event.zig     | 277 ++++++++++++++++++++++++--------
 std/os/darwin.zig | 131 +++++++++++++++
 std/os/index.zig  |  56 +++++++
 4 files changed, 454 insertions(+), 66 deletions(-)