/* Copyright (C) 2002-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.

   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/>.  */

/* This test case checks more than standard compliance.  An

   implementation may provide this service but it is not required to

   do so.  */

#include <errno.h>

#include <pthread.h>

#include <stdio.h>

static int

do_test (void)

{

  pthread_rwlock_t r;

  int e;

  if (pthread_rwlock_init (&r, NULL) != 0)

    {

      puts ("rwlock_init failed");

      return 1;

    }

  puts ("rwlock_init succeeded");

  if (pthread_rwlock_trywrlock (&r) != 0)

    {

      puts ("rwlock_trywrlock on unlocked rwlock failed");

      return 1;

    }

  puts ("rwlock_trywrlock on unlocked rwlock succeeded");

  e = pthread_rwlock_rdlock (&r);

  if (e == 0)

    {

      puts ("rwlock_rdlock on rwlock with writer succeeded");

      return 1;

    }

  if (e != EDEADLK)

    {

      puts ("rwlock_rdlock on rwlock with writer failed != EDEADLK");

      return 1;

    }

  puts ("rwlock_rdlock on rwlock with writer failed with EDEADLK");

  e = pthread_rwlock_wrlock (&r);

  if (e == 0)

    {

      puts ("rwlock_wrlock on rwlock with writer succeeded");

      return 1;

    }

  if (e != EDEADLK)

    {

      puts ("rwlock_wrlock on rwlock with writer failed != EDEADLK");

      return 1;

    }

  puts ("rwlock_wrlock on rwlock with writer failed with EDEADLK");

  if (pthread_rwlock_unlock (&r) != 0)

    {

      puts ("rwlock_unlock failed");

      return 1;

    }

  puts ("rwlock_unlock succeeded");

  if (pthread_rwlock_destroy (&r) != 0)

    {

      puts ("rwlock_destroy failed");

      return 1;

    }

  puts ("rwlock_destroy succeeded");

  return 0;

}

#define TEST_FUNCTION do_test ()

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