boostorg/chrono — pull request #1 by ccbrown (2013-12-12 05:49:31+00:00)
Title: mac thread_clock implementation

The chrono library seems to be missing thread_clock support for mac (and the posix implementation doesn't work for it). This is an implementation to add support using the mach / thread_info api. It should work on Mac 10.4 / iOS 2.0 and higher.

I was pretty surprised this didn't already exist, but haven't been able to find anything in the mailing list or trac regarding it. Curious to hear if there was a reason to avoid this implementation or if it's just something no one got around to.