#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wimplicit-function-declaration"

#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>

void *thread_func(void *arg) {
  // Sleep for a random amount of time between 1 and 5 seconds
  int sleep_time = 1 + rand() % 5;
  sleep(sleep_time);

  return arg;
}

int main() {
  pthread_t thread;
  int thread_arg = 100;

  // Create the thread
  pthread_create(&thread, NULL, thread_func, &thread_arg);

  // Set up a timeout for the pthread_timedjoin_np function
  struct timespec timeout;
  clock_gettime(CLOCK_REALTIME, &timeout);
  timeout.tv_sec += 3; // Wait for at most 3 seconds

  void *result;
  int ret;

  // Wait for the thread to finish, with a timeout
  ret = pthread_timedjoin_np(thread, &result, &timeout);
  if (ret == 0) {
    printf("Thread finished within the timeout\n");
  } else if (ret == ETIMEDOUT) {
    printf("Timed out waiting for thread to finish\n");
  } else {
    printf("Error waiting for thread to finish %d\n", ret);
  }

  return 0;
}

#pragma GCC diagnostic pop