/* 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 <string.h>

static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER;

static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER;

static int cntr;

static void

cleanup (void *arg)

{

  if (arg != (void *) 42l)

    cntr = 42;

  else

    cntr = 1;

}

static void *

tf (void *arg)

{

  /* Ignore all signals.  This must not have any effect on delivering

     the cancellation signal.  */

  sigset_t ss;

  sigfillset (&ss);

  if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)

    {

      puts ("pthread_sigmask failed");

      exit (1);

    }

  pthread_cleanup_push (cleanup, (void *) 42l);

  int err = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, NULL);

  if (err != 0)

    {

      printf ("setcanceltype failed: %s\n", strerror (err));

      exit (1);

    }

  /* The following code is not standard compliant: the mutex functions

     must not be called with asynchronous cancellation enabled.  */

  err = pthread_mutex_unlock (&m2;;

  if (err != 0)

    {

      printf ("child: mutex_unlock failed: %s\n", strerror (err));

      exit (1);

    }

  err = pthread_mutex_lock (&m1;;

  if (err != 0)

    {

      printf ("child: 1st mutex_lock failed: %s\n", strerror (err));

      exit (1);

    }

  /* We should never come here.  */

  pthread_cleanup_pop (0);

  return NULL;

}

static int

do_test (void)

{

  int err;

  pthread_t th;

  int result = 0;

  void *retval;

  /* Get the mutexes.  */

  err = pthread_mutex_lock (&m1;;

  if (err != 0)

    {

      printf ("parent: 1st mutex_lock failed: %s\n", strerror (err));

      return 1;

    }

  err = pthread_mutex_lock (&m2;;

  if (err != 0)

    {

      printf ("parent: 2nd mutex_lock failed: %s\n", strerror (err));

      return 1;

    }

  err = pthread_create (&th, NULL, tf, NULL);

  if (err != 0)

    {

      printf ("create failed: %s\n", strerror (err));

      return 1;

    }

  err = pthread_mutex_lock (&m2;;

  if (err != 0)

    {

      printf ("parent: 3rd mutex_lock failed: %s\n", strerror (err));

      return 1;

    }

  err = pthread_cancel (th);

  if (err != 0)

    {

      printf ("cancel failed: %s\n", strerror (err));

      return 1;

    }

  err = pthread_join (th, &retval);

  if (err != 0)

    {

      printf ("join failed: %s\n", strerror (err));

      return 1;

    }

  if (retval != PTHREAD_CANCELED)

    {

      printf ("wrong return value: %p\n", retval);

      result = 1;

    }

  if (cntr == 42)

    {

      puts ("cleanup handler called with wrong argument");

      result = 1;

    }

  else if (cntr != 1)

    {

      puts ("cleanup handling not called");

      result = 1;

    }

  return result;

}

#define TEST_FUNCTION do_test ()

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