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

   Copyright 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/>.  */

#include <pthread.h>

#include <assert.h>

#include <unistd.h>

#include <stdio.h>

#include <stdlib.h>

#include <errno.h>

#include <unistd.h>

#include <sys/types.h>

#include <sys/wait.h>

#define NUMTHREADS 10

volatile int done = 0;

static void *

start (void *arg)

{

  while (!done)

    usleep (100);

  assert (0);

  return arg;

}

void *

thread_function (void *arg)

{

  int x = * (int *) arg;

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

  while (!done)

    usleep (100);

  return NULL;

}

void *

thread_forker (void *arg)

{

  int x = * (int *) arg;

  pid_t pid;

  int rv;

  int i;

  pthread_t thread;

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

  switch ((pid = fork ()))

    {

    case -1:

      assert (0);

    default:

      wait (&rv);

      done = 1;

      break;

    case 0:

      i = pthread_create (&thread, NULL, start, NULL);

      assert (i == 0);

      i = pthread_join (thread, NULL);

      assert (i == 0);

      assert (0);

    }

  return NULL;

}

int

main (void)

{

  pthread_t threads[NUMTHREADS];

  int args[NUMTHREADS];

  int i, j;

  /* Create a few threads that do mostly nothing, and then one that

     forks.  */

  for (j = 0; j < NUMTHREADS - 1; ++j)

    {

      args[j] = j;

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

    }

  args[j] = j;

  pthread_create (&threads[j], NULL, thread_forker, &args[j]);

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

    {

      pthread_join (threads[j], NULL);

    }

  return 0;

}