Flesh out time_*() API.

This commit is contained in:
Jason Evans
2016-02-19 12:35:37 -08:00
parent e5d5a4a517
commit 94451d184b
8 changed files with 397 additions and 56 deletions

View File

@@ -4,50 +4,26 @@ void
timer_start(timedelta_t *timer)
{
#ifdef _WIN32
GetSystemTimeAsFileTime(&timer->ft0);
#elif JEMALLOC_CLOCK_GETTIME
if (sysconf(_SC_MONOTONIC_CLOCK) <= 0)
timer->clock_id = CLOCK_REALTIME;
else
timer->clock_id = CLOCK_MONOTONIC;
clock_gettime(timer->clock_id, &timer->ts0);
#else
gettimeofday(&timer->tv0, NULL);
#endif
time_init(&timer->t0, 0, 0);
time_update(&timer->t0);
}
void
timer_stop(timedelta_t *timer)
{
#ifdef _WIN32
GetSystemTimeAsFileTime(&timer->ft0);
#elif JEMALLOC_CLOCK_GETTIME
clock_gettime(timer->clock_id, &timer->ts1);
#else
gettimeofday(&timer->tv1, NULL);
#endif
time_copy(&timer->t1, &timer->t0);
time_update(&timer->t1);
}
uint64_t
timer_usec(const timedelta_t *timer)
{
struct timespec delta;
#ifdef _WIN32
uint64_t t0, t1;
t0 = (((uint64_t)timer->ft0.dwHighDateTime) << 32) |
timer->ft0.dwLowDateTime;
t1 = (((uint64_t)timer->ft1.dwHighDateTime) << 32) |
timer->ft1.dwLowDateTime;
return ((t1 - t0) / 10);
#elif JEMALLOC_CLOCK_GETTIME
return (((timer->ts1.tv_sec - timer->ts0.tv_sec) * 1000000) +
(timer->ts1.tv_nsec - timer->ts0.tv_nsec) / 1000);
#else
return (((timer->tv1.tv_sec - timer->tv0.tv_sec) * 1000000) +
timer->tv1.tv_usec - timer->tv0.tv_usec);
#endif
time_copy(&delta, &timer->t1);
time_subtract(&delta, &timer->t0);
return (time_sec(&delta) * 1000000 + time_nsec(&delta) / 1000);
}
void