Timer in C

int StartTimer(dev_timer_t *timer)
{
    int status;
    int seconds,nano;
    struct sigaction sig_act;
    sigset_t mask;
    char debugBuf[256] = { '\0' };

    if(timer_dev[timer->timerno].status != STARTED)
    {
        sigemptyset(&mask);
        sig_act.sa_handler = (void *)sig_handler;
        sig_act.sa_flags = 0;
        sigemptyset(&sig_act.sa_mask);

        seconds= timer->timeout / 1000;
        nano= (timer->timeout % 1000) * 1000000;

        if(timer->timerno != APPTIMER1)
        {
            timer_values[timer->timerno].timeout.it_interval.tv_sec = 1;
            timer_values[timer->timerno].timeout.it_value.tv_sec = seconds;
            timer_values[timer->timerno].timeout.it_interval.tv_nsec =1;
            timer_values[timer->timerno].timeout.it_value.tv_nsec = nano;
        }
        else
        {
            timer_values[timer->timerno].timeout.it_value.tv_sec = seconds;
            timer_values[timer->timerno].timeout.it_value.tv_nsec = nano;
            timer_values[timer->timerno].timeout.it_interval.tv_sec = 0;
            timer_values[timer->timerno].timeout.it_interval.tv_nsec = 0;
        }

        status=timer_create(CLOCK_REALTIME, &timer_values[timer->timerno].evp, &timerid[timer->timerno]);
        if (status == FAILURE)
        {
            debug_log("SYSTEM:timer_create failed",ERROR_LOG);
            return FAILURE;
        }
        timer_settime(timerid[timer->timerno],timer_values[timer->timerno].type, &timer_values[timer->timerno].timeout, NULL);
        sigaction(timer_values[timer->timerno].evp.sigev_signo, &sig_act, 0);
        //timer_connect(timerid,my_handler,0);

        timer_dev[timer->timerno].status = STARTED;
        //debug_log("SYSTEM:Timer  Started",DEBUG_LOG);

        memset(debugBuf,'\0',sizeof(debugBuf));
        sprintf(debugBuf,"SYSTEM:_______________________________Timer %d started, timer_t = %d\n",timer->timerno + 1, (int)timerid[timer->timerno]);
        debug_log(debugBuf,DEBUG_LOG);
    }
    else
    {
        memset(debugBuf,'\0',sizeof(debugBuf));
        sprintf(debugBuf, "SYSTEM:__________________________OOPS... could not Start timer %d, Its already Started",timer->timerno+1);
        debug_log(debugBuf,DEBUG_LOG);
        return INUSE;
    }
    return 0;
}