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

   This file is part of the GNU C Library.

   Contributed by Jakub Jelinek <jakub@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>

/* LinuxThreads pthread_cleanup_{push,pop} helpers.  */

extern void _pthread_cleanup_push (struct _pthread_cleanup_buffer *__buffer,

                                   void (*__routine) (void *),

                                   void *__arg);

extern void _pthread_cleanup_pop (struct _pthread_cleanup_buffer *__buffer,

                                  int __execute);

static int fds[2];

static pthread_barrier_t b2;

static int global;

/* Defined in tst-cleanup4aux.c, never compiled with -fexceptions.  */

extern void fn5 (void);

extern void fn7 (void);

extern void fn9 (void);

void

clh (void *arg)

{

  int val = (long int) arg;

  printf ("clh (%d)\n", val);

  global *= val;

  global += val;

}

static __attribute__((noinline)) void

fn_read (void)

{

  int r = pthread_barrier_wait (&b2;;

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

    {

      printf ("%s: barrier_wait failed\n", __FUNCTION__);

      exit (1);

    }

  char c;

  read (fds[0], &c, 1);

}

__attribute__((noinline)) void

fn0 (void)

{

  pthread_cleanup_push (clh, (void *) 1l);

  fn_read ();

  pthread_cleanup_pop (1);

}

__attribute__((noinline)) void

fn1 (void)

{

  /* This is the old LinuxThreads pthread_cleanup_{push,pop}.  */

  struct _pthread_cleanup_buffer b;

  _pthread_cleanup_push (&b, clh, (void *) 2l);

  fn0 ();

  _pthread_cleanup_pop (&b, 1);

}

static __attribute__((noinline)) void

fn2 (void)

{

  pthread_cleanup_push (clh, (void *) 3l);

  fn1 ();

  pthread_cleanup_pop (1);

}

static void *

tf (void *a)

{

  switch ((long) a)

    {

    case 0:

      fn2 ();

      break;

    case 1:

      fn5 ();

      break;

    case 2:

      fn7 ();

      break;

    case 3:

      fn9 ();

      break;

    }

  return NULL;

}

int

do_test (void)

{

  int result = 0;

  if (pipe (fds) != 0)

    {

      puts ("pipe failed");

      exit (1);

    }

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

    {

      puts ("b2 init failed");

      exit (1);

    }

  const int expect[] =

    {

      15,	/* 1 2 3 */

      276,	/* 1 4 5 6 */

      120,	/* 1 7 8 */

      460	/* 1 2 9 10 */

    };

  long i;

  for (i = 0; i < 4; ++i)

    {

      global = 0;

      printf ("test %ld\n", i);

      pthread_t th;

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

	{

	  puts ("create failed");

	  exit (1);

	}

      int e = pthread_barrier_wait (&b2;;

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

	{

	  printf ("%s: barrier_wait failed\n", __FUNCTION__);

	  exit (1);

	}

      pthread_cancel (th);

      void *r;

      if ((e = pthread_join (th, &r)) != 0)

	{

	  printf ("join failed: %d\n", e);

	  _exit (1);

	}

      if (r != PTHREAD_CANCELED)

	{

	  puts ("thread not canceled");

	  exit (1);

	}

      if (global != expect[i])

	{

	  printf ("global = %d, expected %d\n", global, expect[i]);

	  result = 1;

	}

    }

  return result;

}

#define TEST_FUNCTION do_test ()

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