diff options
Diffstat (limited to 'utils.c')
-rw-r--r-- | utils.c | 40 |
1 files changed, 40 insertions, 0 deletions
@@ -52,3 +52,43 @@ void *__calloc_a(size_t len, ...) return ret; } + +#ifdef __APPLE__ +#include <mach/mach_time.h> + +static void clock_gettime_realtime(struct timespec *tv) +{ + struct timeval _tv; + + gettimeofday(&_tv, NULL); + tv->tv_sec = _tv.tv_sec; + tv->tv_nsec = _tv.tv_usec * 1000; +} + +static void clock_gettime_monotonic(struct timespec *tv) +{ + mach_timebase_info_data_t info; + float sec; + uint64_t val; + + mach_timebase_info(&info); + + val = mach_absolute_time(); + tv->tv_nsec = (val * info.numer / info.denom) % 1000000000; + + sec = val; + sec *= info.numer; + sec /= info.denom; + sec /= 1000000000; + tv->tv_sec = sec; +} + +void clock_gettime(int type, struct timespec *tv) +{ + if (type == CLOCK_REALTIME) + return clock_gettime_realtime(tv); + else + return clock_gettime_monotonic(tv); +} + +#endif |