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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);
}