#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <signal.h>
#include <pthread.h>
#include <errno.h>
#include "exercice1.h"

timer_t timer;
void t (union sigval sigval)
{
    printf ("timer_nr=%02d  pid=%d  pthread_self=%ld\n", sigval.sival_int, getpid(), pthread_self());
}

void exercice3 () {

    struct itimerspec itimer = { { 1, 0 }, { 1, 0 } };
    struct sigevent sigev;

    memset (&sigev, 0, sizeof (struct sigevent));
    sigev.sigev_value.sival_int = 0;
    sigev.sigev_notify = SIGEV_THREAD;
    sigev.sigev_notify_attributes = NULL;
    sigev.sigev_notify_function = t;

    if (timer_create (CLOCK_REALTIME, &sigev, &timer) < 0)
    {
        fprintf (stderr, "[%d]: %s\n", __LINE__, strerror (errno));
        exit (errno);
    }


    if (timer_settime (timer, 0, &itimer, NULL) < 0)
    {
        fprintf (stderr, "[%d]: %s\n", __LINE__, strerror (errno));
        exit (errno);
    }

}