/* Copyright (C) 2003-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.

   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 <error.h>

#include <pthread.h>

#include <stdbool.h>

#include <stdio.h>

#include <stdlib.h>

#define N 10

#define ROUNDS 100

static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;

static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;

static pthread_barrier_t bN1;

static pthread_barrier_t b2;

static void *

tf (void *p)

{

  if (pthread_mutex_lock (&mut) != 0)

    {

      puts ("child: 1st mutex_lock failed");

      exit (1);

    }

  int e = pthread_barrier_wait (&b2;;

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

    {

      puts ("child: 1st barrier_wait failed");

      exit (1);

    }

  if (pthread_cond_wait (&cond, &mut) != 0)

    {

      puts ("child: cond_wait failed");

      exit (1);

    }

  if (pthread_mutex_unlock (&mut) != 0)

    {

      puts ("child: mutex_unlock failed");

      exit (1);

    }

  e = pthread_barrier_wait (&bN1;;

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

    {

      puts ("child: 2nd barrier_wait failed");

      exit (1);

    }

  return NULL;

}

static int

do_test (void)

{

  if (pthread_barrier_init (&bN1, NULL, N + 1) != 0)

    {

      puts ("barrier_init failed");

      exit (1);

    }

  if (pthread_barrier_init (&b2, NULL, 2) != 0)

    {

      puts ("barrier_init failed");

      exit (1);

    }

  pthread_attr_t at;

  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;

    }

  int r;

  for (r = 0; r < ROUNDS; ++r)

    {

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

      int i;

      pthread_t th[N];

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

	{

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

	    {

	      puts ("create failed");

	      exit (1);

	    }

	  int e = pthread_barrier_wait (&b2;;

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

	    {

	      puts ("parent: 1st barrier_wait failed");

	      exit (1);

	    }

	}

      if (pthread_mutex_lock (&mut) != 0)

	{

	  puts ("parent: mutex_lock failed");

	  exit (1);

	}

      if (pthread_mutex_unlock (&mut) != 0)

	{

	  puts ("parent: mutex_unlock failed");

	  exit (1);

	}

      /* N single signal calls.  Without locking.  This tests that no

	 signal gets lost.  */

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

	if (pthread_cond_signal (&cond) != 0)

	  {

	    puts ("cond_signal failed");

	    exit (1);

	  }

      int e = pthread_barrier_wait (&bN1;;

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

	{

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

	  exit (1);

	}

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

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

	  {

	    puts ("join failed");

	    exit (1);

	  }

    }

  if (pthread_attr_destroy (&at) != 0)

    {

      puts ("attr_destroy failed");

      return 1;

    }

  return 0;

}

#define TEST_FUNCTION do_test ()

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