/* Test Thread-Specific Data.

   Copyright (C) 2000-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library;  if not, see

   <http://www.gnu.org/licenses/>.  */

#define _GNU_SOURCE

#include <pthread.h>

#include <assert.h>

#include <stdio.h>

#include <error.h>

#include <errno.h>

#define THREADS 10

#define KEYS 400

pthread_key_t key[KEYS];

void *

thr (void *arg)

{

  error_t err;

  int i;

  for (i = 0; i < KEYS; i++)

    {

      printf ("pthread_getspecific(%d).\n", key[i]);

      assert (pthread_getspecific (key[i]) == NULL);

      printf ("pthread_setspecific(%d, %d).\n", key[i], pthread_self ());

      err = pthread_setspecific (key[i], (void *) pthread_self ());

      printf ("pthread_setspecific(%d, %d) => %d.\n", key[i], pthread_self (),

	      err);

      assert_perror (err);

    }

  return 0;

}

int

main (int argc, char **argv)

{

  error_t err;

  int i;

  pthread_t tid[THREADS];

  void des (void *val)

  {

    assert ((pthread_t) val == pthread_self ());

  }

  assert (pthread_getspecific ((pthread_key_t) 0) == NULL);

  assert (pthread_setspecific ((pthread_key_t) 0, (void *) 0x1) == EINVAL);

  for (i = 0; i < KEYS; i++)

    err = pthread_key_create (&key[i], des);

  for (i = 0; i < THREADS; i++)

    {

      err = pthread_create (&tid[i], 0, thr, 0);

      if (err)

	error (1, err, "pthread_create (%d)", i);

    }

  for (i = 0; i < THREADS; i++)

    {

      void *ret;

      err = pthread_join (tid[i], &ret;;

      if (err)

	error (1, err, "pthread_join");

      assert (ret == 0);

    }

  return 0;

}