/* 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 <pthread.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

static pthread_barrier_t bar;

static int global;

static void

cleanup (void *arg)

{

  global = 1;

}

static void *

tf (void *arg)

{

  /* Enable cancellation, but defer it.  */

  if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0)

    {

      puts ("setcancelstate failed");

      exit (1);

    }

  if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0)

    {

      puts ("setcanceltype failed");

      exit (1);

    }

  /* Add cleanup handler.  */

  pthread_cleanup_push (cleanup, NULL);

  /* Synchronize with the main thread.  */

  int r = pthread_barrier_wait (&bar);

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

    {

      puts ("tf: first barrier_wait failed");

      exit (1);

    }

  /* And again.  Once this is done the main thread should have canceled

     this thread.  */

  r = pthread_barrier_wait (&bar);

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

    {

      puts ("tf: second barrier_wait failed");

      exit (1);

    }

  /* Remove the cleanup handler without executing it.  */

  pthread_cleanup_pop (0);

  /* Now react on the cancellation.  */

  pthread_testcancel ();

  /* This call should never return.  */

  return NULL;

}

static int

do_test (void)

{

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

    {

      puts ("barrier_init failed");

      exit (1);

    }

  pthread_t th;

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

    {

      puts ("pthread_create failed");

      return 1;

    }

  int r = pthread_barrier_wait (&bar);

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

    {

      puts ("first barrier_wait failed");

      exit (1);

    }

  if (pthread_cancel (th) != 0)

    {

      puts ("pthread_cancel failed");

      return 1;

    }

  r = pthread_barrier_wait (&bar);

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

    {

      puts ("second barrier_wait failed");

      exit (1);

    }

  void *result;

  if (pthread_join (th, &result) != 0)

    {

      puts ("pthread_join failed");

      return 1;

    }

  if (result != PTHREAD_CANCELED)

    {

      puts ("thread was not canceled");

      exit (1);

    }

  if (global != 0)

    {

      puts ("cancellation handler has been called");

      exit (1);

    }

  return 0;

}

#define TEST_FUNCTION do_test ()

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