#include <errno.h>

#include <pthread.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <sys/wait.h>

#define NKEYS 100

static pthread_key_t keys[NKEYS];

static pthread_barrier_t b;

static void *

tf (void *arg)

{

  void *res = NULL;

  for (int i = 0; i < NKEYS; ++i)

    {

      void *p = pthread_getspecific (keys[i]);

      pthread_setspecific (keys[i], (void *) 7);

      if (p != NULL)

	res = p;

    }

  if (arg != NULL)

    {

      pthread_barrier_wait (arg);

      pthread_barrier_wait (arg);

    }

  return res;

}

static int

do_test (void)

{

  pthread_barrier_init (&b, NULL, 2);

  for (int i = 0; i < NKEYS; ++i)

    if (pthread_key_create (&keys[i], NULL) != 0)

      {

	puts ("cannot create keys");

	return 1;

      }

  pthread_t th;

  if (pthread_create (&th, NULL, tf, &b) != 0)

    {

      puts ("cannot create thread in parent");

      return 1;

    }

  pthread_barrier_wait (&b);

  pid_t pid = fork ();

  if (pid == 0)

    {

      if (pthread_create (&th, NULL, tf, NULL) != 0)

	{

	  puts ("cannot create thread in child");

	  exit (1);

	}

      void *res;

      pthread_join (th, &res;;

      exit (res != NULL);

    }

  else if (pid == -1)

    {

      puts ("cannot create child process");

      return 1;

    }

  int s;

  if (TEMP_FAILURE_RETRY (waitpid (pid, &s, 0)) != pid)

    {

      puts ("failing to wait for child process");

      return 1;

    }

  pthread_barrier_wait (&b);

  pthread_join (th, NULL);

  return !WIFEXITED (s) ? 2 : WEXITSTATUS (s);

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"