#define _POSIX_C_SOURCE 200809L

#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main() {

    timer_t timerid;
    struct sigevent event = { 0 };

    event.sigev_notify = SIGEV_NONE;

    if ( timer_create( CLOCK_MONOTONIC, &event, &timerid ) == -1 ) {
        perror( "timer_create" );
        return EXIT_FAILURE;
    }

    int overruns = timer_getoverrun( timerid );
    if ( overruns == -1 ) {
        perror( "timer_getoverrun" );
        timer_delete( timerid );
        return EXIT_FAILURE;
    }

    printf( "Expirations en attente : %d\n", overruns );
    timer_delete( timerid );
    return EXIT_SUCCESS;
}