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/* This testcase is part of GDB, the GNU debugger.

   Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010

   Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.

   This file is based on schedlock.c.  */

#include <stdio.h>

#include <unistd.h>

#include <stdlib.h>

#include <pthread.h>

int THREADS = 10;

unsigned int *args;

volatile int done = 0;

void *

thread_function (void *arg)

{

  int my_number = (long) arg;

  volatile int *myp = (volatile int *) &args[my_number];

  /* Don't run forever.  Run just short of it :)  */

  while (*myp > 0 && !done)

    {

      (*myp)++; /* set breakpoint here */

    }

  if (done)

    usleep (100); /* Some time to make sure we don't mask any bad

                     SIGTRAP handling.  */

  pthread_exit (NULL);

}

int

main (int argc, char **argv)

{

  int res;

  pthread_t *threads;

  void *thread_result;

  long i = 0;

  threads = malloc (THREADS * sizeof (pthread_t));

  args = malloc (THREADS * sizeof (unsigned int));

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

    {

      args[i] = 1; /* Init value.  */

      res = pthread_create (&threads[i],

                            NULL,

                            thread_function,

                            (void *) i);

    }

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

    pthread_join (threads[i], &thread_result);

  exit(EXIT_SUCCESS);

}