/* 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 <stdio.h>

#include <stdlib.h>

static pthread_mutex_t m1;

static pthread_mutex_t m2;

static pthread_barrier_t b;

#ifndef LOCK

# define LOCK(m) pthread_mutex_lock (m)

#endif

static void *

tf (void *arg)

{

  long int round = (long int) arg;

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

    {

      printf ("%ld: setcancelstate failed\n", round);

      exit (1);

    }

  int e = LOCK (&m1;;

  if (e != 0)

    {

      printf ("%ld: child: mutex_lock m1 failed with error %d\n", round, e);

      exit (1);

    }

  e = LOCK (&m2;;

  if (e != 0)

    {

      printf ("%ld: child: mutex_lock m2 failed with error %d\n", round, e);

      exit (1);

    }

  e = pthread_barrier_wait (&b);

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

    {

      printf ("%ld: child: 1st barrier_wait failed\n", round);

      exit (1);

    }

  e = pthread_barrier_wait (&b);

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

    {

      printf ("%ld: child: 2nd barrier_wait failed\n", round);

      exit (1);

    }

  pthread_testcancel ();

  printf ("%ld: testcancel returned\n", round);

  exit (1);

}

static int

do_test (void)

{

#ifdef PREPARE_TMO

  PREPARE_TMO;

#endif

  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;

    }

  else

    {

      int e = pthread_mutex_init (&m1, &a);

      if (e == ENOTSUP)

	{

	  puts ("PI robust mutexes not supported");

	  return 0;

	}

      else if (e != 0)

	{

	  puts ("mutex_init m1 failed");

	  return 1;

	}

      pthread_mutex_destroy (&m1;;

    }

#endif

#ifndef NOT_CONSISTENT

  if (pthread_mutex_init (&m1, &a) != 0)

    {

      puts ("mutex_init m1 failed");

      return 1;

    }

  if (pthread_mutex_init (&m2, &a) != 0)

    {

      puts ("mutex_init m2 failed");

      return 1;

    }

#endif

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

    {

      puts ("barrier_init failed");

      return 1;

    }

  for (long int round = 1; round < 5; ++round)

    {

#ifdef NOT_CONSISTENT

      if (pthread_mutex_init (&m1 , &a) != 0)

	{

	  puts ("mutex_init m1 failed");

	  return 1;

	}

      if (pthread_mutex_init (&m2 , &a) != 0)

	{

	  puts ("mutex_init m2 failed");

	  return 1;

	}

#endif

      pthread_t th;

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

	{

	  printf ("%ld: create failed\n", round);

	  return 1;

	}

      int e = pthread_barrier_wait (&b);

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

	{

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

	  return 1;

	}

      if (pthread_cancel (th) != 0)

	{

	  printf ("%ld: cancel failed\n", round);

	  return 1;

	}

      e = pthread_barrier_wait (&b);

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

	{

	  printf ("%ld: parent: 2nd barrier_wait failed\n", round);

	  return 1;

	}

#ifndef AFTER_JOIN

      if (round & 1)

#endif

	{

	  void *res;

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

	    {

	      printf ("%ld: join failed\n", round);

	      return 1;

	    }

	  if (res != PTHREAD_CANCELED)

	    {

	      printf ("%ld: thread not canceled\n", round);

	      return 1;

	    }

	}

      e = LOCK (&m1;;

      if (e == 0)

	{

	  printf ("%ld: parent: mutex_lock m1 succeeded\n", round);

	  return 1;

	}

      if (e != EOWNERDEAD)

	{

	  printf ("%ld: parent: mutex_lock m1 returned wrong code\n", round);

	  return 1;

	}

      e = LOCK (&m2;;

      if (e == 0)

	{

	  printf ("%ld: parent: mutex_lock m2 succeeded\n", round);

	  return 1;

	}

      if (e != EOWNERDEAD)

	{

	  printf ("%ld: parent: mutex_lock m2 returned wrong code\n", round);

	  return 1;

	}

#ifndef AFTER_JOIN

      if ((round & 1) == 0)

	{

	  void *res;

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

	    {

	      printf ("%ld: join failed\n", round);

	      return 1;

	    }

	  if (res != PTHREAD_CANCELED)

	    {

	      printf ("%ld: thread not canceled\n", round);

	      return 1;

	    }

	}

#endif

#ifndef NOT_CONSISTENT

      e = pthread_mutex_consistent_np (&m1;;

      if (e != 0)

	{

	  printf ("%ld: mutex_consistent m1 failed with error %d\n", round, e);

	  return 1;

	}

      e = pthread_mutex_consistent_np (&m2;;

      if (e != 0)

	{

	  printf ("%ld: mutex_consistent m2 failed with error %d\n", round, e);

	  return 1;

	}

#endif

      e = pthread_mutex_unlock (&m1;;

      if (e != 0)

	{

	  printf ("%ld: mutex_unlock m1 failed with %d\n", round, e);

	  return 1;

	}

      e = pthread_mutex_unlock (&m2;;

      if (e != 0)

	{

	  printf ("%ld: mutex_unlock m2 failed with %d\n", round, e);

	  return 1;

	}

#ifdef NOT_CONSISTENT

      e = LOCK (&m1;;

      if (e == 0)

	{

	  printf ("%ld: locking inconsistent mutex m1 succeeded\n", round);

	  return 1;

	}

      if (e != ENOTRECOVERABLE)

	{

	  printf ("%ld: locking inconsistent mutex m1 failed with error %d\n",

		  round, e);

	  return 1;

	}

      if (pthread_mutex_destroy (&m1) != 0)

	{

	  puts ("mutex_destroy m1 failed");

	  return 1;

	}

      e = LOCK (&m2;;

      if (e == 0)

	{

	  printf ("%ld: locking inconsistent mutex m2 succeeded\n", round);

	  return 1;

	}

      if (e != ENOTRECOVERABLE)

	{

	  printf ("%ld: locking inconsistent mutex m2 failed with error %d\n",

		  round, e);

	  return 1;

	}

      if (pthread_mutex_destroy (&m2) != 0)

	{

	  puts ("mutex_destroy m2 failed");

	  return 1;

	}

#endif

    }

#ifndef NOT_CONSISTENT

  if (pthread_mutex_destroy (&m1) != 0)

    {

      puts ("mutex_destroy m1 failed");

      return 1;

    }

  if (pthread_mutex_destroy (&m2) != 0)

    {

      puts ("mutex_destroy m2 failed");

      return 1;

    }

#endif

  if (pthread_mutexattr_destroy (&a) != 0)

    {

      puts ("mutexattr_destroy failed");

      return 1;

    }

  return 0;

}

#define TEST_FUNCTION do_test ()

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