/* 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/>.  */

#include <pthread.h>

#include <signal.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

static int do_test (void);

#define TEST_FUNCTION do_test ()

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

static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;

static pthread_rwlock_t r;

static void *

tf (void *arg)

{

  if (pthread_rwlock_wrlock (&r) == 0)

    {

      puts ("child: rwlock_wrlock succeeded");

      exit (1);

    }

  puts ("child: rwlock_wrlock returned");

  exit (1);

}

static int

do_test (void)

{

  pthread_t th;

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

    {

      puts ("rwlock_init failed");

      return 1;

    }

  if (pthread_rwlock_wrlock (&r) != 0)

    {

      puts ("rwlock_wrlock failed");

      return 1;

    }

  if (pthread_mutex_lock (&m) != 0)

    {

      puts ("mutex_lock failed");

      return 1;

    }

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

    {

      puts ("create failed");

      return 1;

    }

  delayed_exit (1);

  /* This call should never return.  */

  xpthread_mutex_lock (&m);

  puts ("2nd mutex_lock returned");

  return 1;

}