tree 19a0a12714c0e6f0e8406bd587bd0397468b27e0
parent 7617b59fd678f9fea143c1f367f40b2dd5714f5f
author Robert Sesek <rsesek@chromium.org> 1570745316 -0400
committer Commit Bot <commit-bot@chromium.org> 1570746700 +0000

Switch Semaphore to use dispatch_semaphore_t on Mac.

The dispatch_semaphore_t is a higher-level, more-efficient semaphore
primitive if the cross-process capabilities of semaphore_t are not
needed.

Bug: chromium:1012386
Change-Id: I9c1b50805ce7ec54f4848a2633b4a7b260e00578
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/6240
Reviewed-by: Scott Graham <scottmg@chromium.org>
Commit-Queue: Scott Graham <scottmg@chromium.org>