[PATCH] D40665: [sanitizer] Implement NanoTime() on Darwin

[Kuba (Brecka) Mracek via Phabricator via llvm-commits]

kubamracek added inline comments.


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Comment at: lib/sanitizer_common/sanitizer_mac.cc:367
+  static mach_timebase_info_data_t timebase_info;
+  if (timebase_info.denom == 0) mach_timebase_info(&timebase_info);
+  return (mach_absolute_time() * timebase_info.numer) / timebase_info.denom;
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Actually, this is racy unless we guarantee NanoTime is called during initialization...


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D40665