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/* Manythreads test program.

   Copyright 2004, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.

   Written by Jeff Johnston <jjohnstn@redhat.com>

   Contributed by Red Hat

   This file is part of GDB.

   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/>.  */

#include <pthread.h>

#include <stdio.h>

#include <limits.h>

void *

thread_function (void *arg)

{

  int x = * (int *) arg;

  printf ("Thread <%d> executing\n", x);

  return NULL;

}

int

main (int argc, char **argv)

{

  pthread_attr_t attr;

  pthread_t threads[256];

  int args[256];

  int i, j;

  pthread_attr_init (&attr);

#ifdef PTHREAD_STACK_MIN

  pthread_attr_setstacksize (&attr, 2*PTHREAD_STACK_MIN);

#endif

  /* Create a ton of quick-executing threads, then wait for them to

     complete.  */

  for (i = 0; i < 1000; ++i)

    {

      for (j = 0; j < 256; ++j)

        {

          args[j] = i * 1000 + j;

          pthread_create (&threads[j], &attr, thread_function, &args[j]);

        }

      for (j = 0; j < 256; ++j)

        {

          pthread_join (threads[j], NULL);

        }

    }

  pthread_attr_destroy (&attr);

  return 0;

}