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Add support for clock_gettime_nsec_np()

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Prefer clock_gettime_nsec_np(CLOCK_UPTIME_RAW) to mach_absolute_time().
This commit is contained in:
Qi Wang
2024-10-04 15:25:54 -07:00
committed by Qi Wang
parent 397827a27d
commit 6d625d5e5e
3 changed files with 27 additions and 1 deletions
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13
src/nstime.c
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@@ -201,11 +201,22 @@ nstime_get(nstime_t *time) {
clock_gettime(CLOCK_MONOTONIC, &ts);
nstime_init2(time, ts.tv_sec, ts.tv_nsec);
}
#elif defined(JEMALLOC_HAVE_CLOCK_GETTIME_NSEC_NP)
# define NSTIME_MONOTONIC true
static void
nstime_get(nstime_t *time) {
nstime_init(time, clock_gettime_nsec_np(CLOCK_UPTIME_RAW));
}
#elif defined(JEMALLOC_HAVE_MACH_ABSOLUTE_TIME)
# define NSTIME_MONOTONIC true
static void
nstime_get(nstime_t *time) {
nstime_init(time, mach_absolute_time());
static mach_timebase_info_data_t sTimebaseInfo;
if (sTimebaseInfo.denom == 0) {
(void) mach_timebase_info(&sTimebaseInfo);
}
nstime_init(time, mach_absolute_time() * sTimebaseInfo.numer
/ sTimebaseInfo.denom);
}
#else
# define NSTIME_MONOTONIC false