[tor-bugs] #24427 [Core Tor/Tor]: Consider using other mach_*_time() functions for monotonic time on OSX

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#24427: Consider using other mach_*_time() functions for monotonic time on OSX
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     Reporter:  nickm         |      Owner:  (none)
         Type:  enhancement   |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.3.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:  Sponsor8-can  |
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 As of OSX 10.9, there is a `mach_approximate_time()` which looks at first
 glance like it might be suitable for use as our `monotime_coarse`.

 As of OSX 10.12, there are `mach_continuous_absolute_time()` and
 `mach_continuous_approximate_time()`, which are supposed to keep counting
 while the system is sleeping.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24427>
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