[mac] mach_absolute_time() -> clock_gettime_nsec_np(CLOCK_UPTIME_RAW)

https://developer.apple.com/documentation/kernel/1462446-mach_absolute_time > Prefer to use the equivalent clock_gettime_nsec_np(CLOCK_UPTIME_RAW) in nanoseconds. The two are equivalent: https://github.com/apple-oss-distributions/Libc/blob/c5a3293354e22262702a3add5b2dfc9bb0b93b85/gen/clock_gettime.c#L118 Change-Id: I1c7a08d821d1840b74fc5eaa0e9ceca2ade5bbfc Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5085307 Commit-Queue: Ben Hamilton <[email protected]> Reviewed-by: Justin Cohen <[email protected]> Reviewed-by: Mark Mentovai <[email protected]>
chromium · Dec 12, 2023 · 337b4f7 · 337b4f7
1 parent 7049d96
commit 337b4f7
Showing 1 changed file with 2 additions and 22 deletions.
diff --git a/util/misc/clock_mac.cc b/util/misc/clock_mac.cc
@@ -14,32 +14,12 @@
 
 #include "util/misc/clock.h"
 
-#include <mach/mach_time.h>
-
-#include "base/apple/mach_logging.h"
-
-namespace {
-
-mach_timebase_info_data_t* TimebaseInternal() {
-  mach_timebase_info_data_t* timebase_info = new mach_timebase_info_data_t;
-  kern_return_t kr = mach_timebase_info(timebase_info);
-  MACH_CHECK(kr == KERN_SUCCESS, kr) << "mach_timebase_info";
-  return timebase_info;
-}
-
-mach_timebase_info_data_t* Timebase() {
-  static mach_timebase_info_data_t* timebase_info = TimebaseInternal();
-  return timebase_info;
-}
-
-}  // namespace
+#include <time.h>
 
 namespace crashpad {
 
 uint64_t ClockMonotonicNanoseconds() {
-  uint64_t absolute_time = mach_absolute_time();
-  mach_timebase_info_data_t* timebase_info = Timebase();
-  return absolute_time * timebase_info->numer / timebase_info->denom;
+  return clock_gettime_nsec_np(CLOCK_UPTIME_RAW);
 }
 
 }  // namespace crashpad