Function realtimer_clocktime

freebsd/kern/kern_time.c:1569–1576

}

static void
realtimer_clocktime(clockid_t id, struct timespec *ts)
{
	if (id == CLOCK_REALTIME)
		getnanotime(ts);
	else	/* CLOCK_MONOTONIC */
		getnanouptime(ts);
}

int
itimer_accept(struct proc *p, int timerid, ksiginfo_t *ksi)