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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [gdb/] [testsuite/] [gdb.threads/] [fork-thread-pending.c] - Blame information for rev 330

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1 330 jeremybenn
/* This testcase is part of GDB, the GNU debugger.
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   Copyright 2008, 2009, 2010 Free Software Foundation, Inc.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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#include <pthread.h>
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#include <assert.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#define NUMTHREADS 10
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volatile int done = 0;
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static void *
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start (void *arg)
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{
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  while (!done)
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    usleep (100);
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  assert (0);
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  return arg;
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}
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void *
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thread_function (void *arg)
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{
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  int x = * (int *) arg;
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  printf ("Thread <%d> executing\n", x);
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  while (!done)
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    usleep (100);
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  return NULL;
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}
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void *
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thread_forker (void *arg)
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{
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  int x = * (int *) arg;
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  pid_t pid;
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  int rv;
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  int i;
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  pthread_t thread;
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  printf ("Thread forker <%d> executing\n", x);
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  switch ((pid = fork ()))
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    {
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    case -1:
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      assert (0);
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    default:
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      wait (&rv);
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      done = 1;
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      break;
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    case 0:
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      i = pthread_create (&thread, NULL, start, NULL);
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      assert (i == 0);
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      i = pthread_join (thread, NULL);
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      assert (i == 0);
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      assert (0);
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    }
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  return NULL;
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}
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int
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main (void)
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{
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  pthread_t threads[NUMTHREADS];
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  int args[NUMTHREADS];
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  int i, j;
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  /* Create a few threads that do mostly nothing, and then one that
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     forks.  */
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  for (j = 0; j < NUMTHREADS - 1; ++j)
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    {
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      args[j] = j;
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      pthread_create (&threads[j], NULL, thread_function, &args[j]);
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    }
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  args[j] = j;
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  pthread_create (&threads[j], NULL, thread_forker, &args[j]);
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  for (j = 0; j < NUMTHREADS; ++j)
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    {
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      pthread_join (threads[j], NULL);
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    }
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  return 0;
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}

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