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[/] [openrisc/] [trunk/] [gnu-stable/] [gdb-7.2/] [gdb/] [testsuite/] [gdb.threads/] [fork-thread-pending.c] - Rev 835
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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; }
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