/* Test that the key reuse inside libpthread does not cause thread

   specific values to persist.

   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 1

#include <pthread.h>

#include <stdio.h>

#include <assert.h>

#include <errno.h>

void

work (int iter)

{

  error_t err;

  pthread_key_t key1;

  pthread_key_t key2;

  void *value1;

  void *value2;

  printf ("work/%d: start\n", iter);

  err = pthread_key_create (&key1, NULL);

  assert (err == 0);

  err = pthread_key_create (&key2, NULL);

  assert (err == 0);

  value1 = pthread_getspecific (key1);

  value2 = pthread_getspecific (key2);

  printf ("work/%d: pre-setspecific: %p,%p\n", iter, value1, value2);

  assert (value1 == NULL);

  assert (value2 == NULL);

  err = pthread_setspecific (key1, (void *) (0x100 + iter));

  assert (err == 0);

  err = pthread_setspecific (key2, (void *) (0x200 + iter));

  assert (err == 0);

  value1 = pthread_getspecific (key1);

  value2 = pthread_getspecific (key2);

  printf ("work/%d: post-setspecific: %p,%p\n", iter, value1, value2);

  assert (value1 == (void *) (0x100 + iter));

  assert (value2 == (void *) (0x200 + iter));

  err = pthread_key_delete (key1);

  assert (err == 0);

  err = pthread_key_delete (key2);

  assert (err == 0);

}

int

main (int argc, char *argv[])

{

  int i;

  for (i = 0; i < 8; ++i)

    work (i + 1);

  return 0;

}