3 #ifndef HAVE_CLOCK_GETTIME
4 inline int clock_gettime(clockid_t clk_id, struct timespec *ts) {
6 if(unlikely(gettimeofday(&tv, NULL) == -1))
8 ts->tv_sec = tv.tv_sec;
9 ts->tv_nsec = tv.tv_usec * NSEC_PER_USEC;
14 inline time_t now_realtime_sec(void) {
16 if(unlikely(clock_gettime(CLOCK_REALTIME, &ts) == -1))
21 inline int now_realtime_timeval(struct timeval *tv) {
23 if(unlikely(clock_gettime(CLOCK_REALTIME, &ts) == -1))
25 tv->tv_sec = ts.tv_sec;
26 tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
30 inline usec_t now_realtime_usec(void) {
32 if(unlikely(clock_gettime(CLOCK_REALTIME, &ts) == -1))
34 return (usec_t)ts.tv_sec * USEC_PER_SEC + ts.tv_nsec / NSEC_PER_USEC;
37 inline time_t now_monotonic_sec(void) {
39 if(unlikely(clock_gettime(CLOCK_MONOTONIC, &ts) == -1))
44 inline usec_t now_monotonic_usec(void) {
46 if(unlikely(clock_gettime(CLOCK_MONOTONIC, &ts) == -1))
48 return (usec_t)ts.tv_sec * USEC_PER_SEC + ts.tv_nsec / NSEC_PER_USEC;
51 inline time_t now_boottime_sec(void) {
53 if(unlikely(clock_gettime(CLOCK_BOOTTIME, &ts) == -1))
58 inline usec_t now_boottime_usec(void) {
60 if(unlikely(clock_gettime(CLOCK_BOOTTIME, &ts) == -1))
62 return (usec_t)ts.tv_sec * USEC_PER_SEC + ts.tv_nsec / NSEC_PER_USEC;
65 inline usec_t timeval_usec(struct timeval *tv) {
66 return (usec_t)tv->tv_sec * USEC_PER_SEC + tv->tv_usec;
69 inline usec_t dt_usec(struct timeval *now, struct timeval *old) {
70 usec_t ts1 = timeval_usec(now);
71 usec_t ts2 = timeval_usec(old);
72 return (ts1 > ts2) ? (ts1 - ts2) : (ts2 - ts1);