ulong tmr_time() {
	struct timespec tm;
	if(clock_gettime((clockid_t)sys.tmr_timer, &tm)) {
		return 0ULL;
	}
	return tm.tv_sec * 1000000ULL + tm.tv_nsec / 1000ULL;
}

ulong tmr_ntime() {
	struct timespec tm;
	if(clock_gettime((clockid_t)sys.tmr_timer, &tm)) {
		return 0ULL;
	}
	return tm.tv_sec * 1000000000ULL + tm.tv_nsec;
}

ulong tmr_rtime() {
	return tmr_time() - sys.tmr_start;
}

double tmr_ftime() {
	return ((double)tmr_rtime()) / 1000000.0;
}

clockid_t tmr_gettimer() {
	struct timespec tm;
	clockid_t timer = CLOCK_MONOTONIC_RAW;
	if(clock_gettime(timer, &tm)) {
		timer = CLOCK_MONOTONIC;
		if(clock_gettime(timer, &tm)) {
			timer = CLOCK_REALTIME;
			sys_assert(!clock_gettime(timer, &tm))
		}
	}
	return timer;
}