/* Copyright (C) 2005-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2005.

   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 <errno.h>

#include <pthread.h>

#include <stdbool.h>

#include <stdio.h>

#include <stdlib.h>

static pthread_barrier_t b;

static pthread_cond_t c = PTHREAD_COND_INITIALIZER;

static pthread_mutex_t m;

static bool first = true;

static void *

tf (void *arg)

{

  long int n = (long int) arg;

  if (pthread_mutex_lock (&m) != 0)

    {

      printf ("thread %ld: mutex_lock failed\n", n + 1);

      exit (1);

    }

  int e = pthread_barrier_wait (&b);

  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)

    {

      printf ("thread %ld: barrier_wait failed\n", n + 1);

      exit (1);

    }

  e = pthread_cond_wait (&c, &m);

  if (first)

    {

      if (e != 0)

	{

	  printf ("thread %ld: cond_wait failed\n", n + 1);

	  exit (1);

	}

      first = false;

    }

  else

    {

      if (e != EOWNERDEAD)

	{

	  printf ("thread %ld: cond_wait did not return EOWNERDEAD\n", n + 1);

	  exit (1);

	}

    }

  if (pthread_cancel (pthread_self ()) != 0)

    {

      printf ("thread %ld: cancel failed\n", n + 1);

      exit (1);

    }

  pthread_testcancel ();

  printf ("thread %ld: testcancel returned\n", n + 1);

  exit (1);

}

static int

do_test (void)

{

  pthread_mutexattr_t a;

  if (pthread_mutexattr_init (&a) != 0)

    {

      puts ("mutexattr_init failed");

      return 1;

    }

  if (pthread_mutexattr_setrobust_np (&a, PTHREAD_MUTEX_ROBUST_NP) != 0)

    {

      puts ("mutexattr_setrobust failed");

      return 1;

    }

#ifdef ENABLE_PI

  if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)

    {

      puts ("pthread_mutexattr_setprotocol failed");

      return 1;

    }

#endif

  int e;

  e = pthread_mutex_init (&m, &a);

  if (e != 0)

    {

#ifdef ENABLE_PI

      if (e == ENOTSUP)

	{

	  puts ("PI robust mutexes not supported");

	  return 0;

	}

#endif

      puts ("mutex_init failed");

      return 1;

    }

  if (pthread_mutexattr_destroy (&a) != 0)

    {

      puts ("mutexattr_destroy failed");

      return 1;

    }

  if (pthread_barrier_init (&b, NULL, 2) != 0)

    {

      puts ("barrier_init failed");

      return 1;

    }

#define N 5

  pthread_t th[N];

  for (long int n = 0; n < N; ++n)

    {

      if (pthread_create (&th[n], NULL, tf, (void *) n) != 0)

	{

	  printf ("pthread_create loop %ld failed\n", n + 1);

	  return 1;

	}

      e = pthread_barrier_wait (&b);

      if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)

	{

	  printf ("parent: barrier_wait failed in round %ld\n", n + 1);

	  return 1;

	}

    }

  if (pthread_mutex_lock (&m) != 0)

    {

      puts ("parent: mutex_lock failed");

      return 1;

    }

  if (pthread_mutex_unlock (&m) != 0)

    {

      puts ("parent: mutex_unlock failed");

      return 1;

    }

  if (pthread_cond_broadcast (&c) != 0)

    {

      puts ("cond_broadcast failed");

      return 1;

    }

  for (int n = 0; n < N; ++n)

    {

      void *res;

      if (pthread_join (th[n], &res) != 0)

	{

	  printf ("join round %d failed\n", n + 1);

	  return 1;

	}

      if (res != PTHREAD_CANCELED)

	{

	  printf ("thread %d not canceled\n", n + 1);

	  return 1;

	}

    }

  e = pthread_mutex_lock (&m);

  if (e == 0)

    {

      puts ("parent: 2nd mutex_lock succeeded");

      return 1;

    }

  if (e != EOWNERDEAD)

    {

      puts ("parent: mutex_lock did not return EOWNERDEAD");

      return 1;

    }

  if (pthread_mutex_unlock (&m) != 0)

    {

      puts ("parent: 2nd mutex_unlock failed");

      return 1;

    }

  if (pthread_mutex_destroy (&m) != 0)

    {

      puts ("mutex_destroy failed");

      return 1;

    }

  return 0;

}

#define TEST_FUNCTION do_test ()

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