Function init_timer

timer.c:117–206

ret 0 on success, <0 on error*/

/* ret 0 on success, <0 on error*/
int init_timer(void)
{
	int optval;

	jiffies  = shm_malloc(sizeof(unsigned int));
	ujiffies = shm_malloc(sizeof(utime_t));
	ijiffies = shm_malloc(sizeof(utime_t));
	ijiffies_drift = shm_malloc(sizeof(utime_t));
	ijiffies_drift_base = shm_malloc(sizeof(utime_t));

	if (jiffies==0 || ujiffies==0 || ijiffies==0 ||
		ijiffies_drift==0 || ijiffies_drift_base==0){
		LM_CRIT("could not init jiffies\n");
		return E_OUT_OF_MEM;
	}

	if (UTIMER_TICK>TIMER_TICK*1000000) {
		LM_CRIT("UTIMER > TIMER!!\n");
		return E_CFG;
	}

	if ( ((TIMER_TICK*1000000) % UTIMER_TICK)!=0 ) {
		LM_CRIT("TIMER must be multiple of UTIMER!!\n");
		return E_CFG;
	}

	*jiffies=0;
	*ujiffies=0;
	*ijiffies=0;
	*ijiffies_drift=0;
	*ijiffies_drift_base=0;

	/* create the pipe for dispatching the timer jobs */
	if ( pipe(timer_pipe)!=0 ) {
		LM_ERR("failed to create time pipe (%s)!\n",strerror(errno));
		return E_UNSPEC;
	}
	/* make reading fd non-blocking */
	optval=fcntl(timer_pipe[0], F_GETFL);
	if (optval==-1){
		LM_ERR("fcntl failed: (%d) %s\n", errno, strerror(errno));
		return E_UNSPEC;
	}
	if (fcntl(timer_pipe[0],F_SETFL,optval|O_NONBLOCK)==-1){
		LM_ERR("set non-blocking failed: (%d) %s\n",
			errno, strerror(errno));
		return E_UNSPEC;
	}
	/* make visible the "read" part of the pipe */
	timer_fd_out = timer_pipe[0];

	if (timer_auto_scaling_profile) {
		s_profile = get_scaling_profile(timer_auto_scaling_profile);
		if ( s_profile==NULL) {
			LM_ERR("undefined auto-scaling profile <%s> for timers\n",
				timer_auto_scaling_profile);
			return E_UNSPEC;
		}