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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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10
configure.ac
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@ -2126,6 +2126,16 @@ if test "x${je_cv_clock_realtime}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_CLOCK_REALTIME], [ ], [ ])
fi
dnl Check for clock_gettime_nsec_np().
JE_COMPILABLE([clock_gettime_nsec_np()], [
#include <time.h>
], [
clock_gettime_nsec_np(CLOCK_UPTIME_RAW);
], [je_cv_clock_gettime_nsec_np])
if test "x${je_cv_clock_gettime_nsec_np}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_CLOCK_GETTIME_NSEC_NP], [ ], [ ])
fi
dnl Use syscall(2) (if available) by default.
AC_ARG_ENABLE([syscall],
[AS_HELP_STRING([--disable-syscall], [Disable use of syscall(2)])],