/* This tests destruction of a barrier right after waiting on it.

   Copyright (C) 2004-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.

   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 <stdio.h>

#include <stdlib.h>

static pthread_barrier_t b1;

static pthread_barrier_t b2;

#define N 20

static void *

tf (void *arg)

{

  int round = 0;

  while (round++ < 30)

    {

      if (pthread_barrier_wait (&b1) == PTHREAD_BARRIER_SERIAL_THREAD)

	{

	  pthread_barrier_destroy (&b1;;

	  if (pthread_barrier_init (&b1, NULL, N) != 0)

	    {

	      puts ("tf: 1st barrier_init failed");

	      exit (1);

	    }

	}

      if (pthread_barrier_wait (&b2) == PTHREAD_BARRIER_SERIAL_THREAD)

	{

	  pthread_barrier_destroy (&b2;;

	  if (pthread_barrier_init (&b2, NULL, N) != 0)

	    {

	      puts ("tf: 2nd barrier_init failed");

	      exit (1);

	    }

	}

    }

  return NULL;

}

static int

do_test (void)

{

  pthread_attr_t at;

  int cnt;

  if (pthread_attr_init (&at) != 0)

    {

      puts ("attr_init failed");

      return 1;

    }

  if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0)

    {

      puts ("attr_setstacksize failed");

      return 1;

    }

  if (pthread_barrier_init (&b1, NULL, N) != 0)

    {

      puts ("1st barrier_init failed");

      return 1;

    }

  if (pthread_barrier_init (&b2, NULL, N) != 0)

    {

      puts ("2nd barrier_init failed");

      return 1;

    }

  pthread_t th[N - 1];

  for (cnt = 0; cnt < N - 1; ++cnt)

    if (pthread_create (&th[cnt], &at, tf, NULL) != 0)

      {

	puts ("pthread_create failed");

	return 1;

      }

  if (pthread_attr_destroy (&at) != 0)

    {

      puts ("attr_destroy failed");

      return 1;

    }

  tf (NULL);

  for (cnt = 0; cnt < N - 1; ++cnt)

    if (pthread_join (th[cnt], NULL) != 0)

      {

	puts ("pthread_join failed");

	return 1;

      }

  return 0;

}

#define TEST_FUNCTION do_test ()

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