Raspberry - Timer

void timer_handler (int signum)

{

   /* do something */     

}

void Init(void)

{

    struct sigaction sa;

    struct itimerval timer;

    /* Installiere timer_handler als Signal Handler fuer SIGVTALRM. */

    memset(&sa, 0, sizeof (sa));

    sigemptyset(&sa.sa_mask);

    sa.sa_handler = &timer_handler;

    sigaction(SIGVTALRM, &sa, NULL);

    /* Timer konfigurieren fuer 10 ms ... */

    timer.it_value.tv_sec = 0;

    timer.it_value.tv_usec = 10000;

    /* ... und alle 10 ms danach */

    timer.it_interval.tv_sec = 0;

    timer.it_interval.tv_usec = 10000;

    /* Timer starten */

    setitimer(ITIMER_VIRTUAL, &timer, NULL);

}