#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>
#include "signal-helper.h"

int beeps = 0;

void sigalrm_handler(int sig) { // SIGALRM handler
  safe_printf("BEEP\n");
  if (++beeps < 5) {
    alarm(1);
  } else {
    safe_printf("DING DING!\n");
    exit(0);
  }
}

int main() {

  // install the handler
  if (Signal(SIGALRM, sigalrm_handler) == SIG_ERR) {
    unix_error("signal error");
  }

  alarm(1); /* send SIGALRM in 1 second */
  
  while (1) {
  }

  return 0;
}