#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/prctl.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <pthread.h>

void* do_victim(void* arg) {
  close(0xab);
  return NULL;
}

void *do_killer(void *arg) {
  pthread_t victim = *((pthread_t *) arg);
  pthread_cancel(victim);
  close(0xac);
}

int main() {
  int i;
  int round = 1;
  pthread_t killer;
  pthread_t victim;

  while(1) {
    printf("--------------------[ %d ]---------------------------\n", round);
    printf("Creating workers\n");
    pthread_create(&victim, NULL, do_victim, NULL);
    pthread_create(&killer, NULL, do_killer, &victim);
    printf("Waiting for workers to join\n");
    pthread_join(victim, NULL);
    printf("Victim joined\n");
    pthread_join(killer, NULL);
    printf("killer joined\n");
    round += 1;
    printf("-----------------------------------------------------\n");
  }
}