/* This testcase is part of GDB, the GNU debugger. Copyright 2002, 2003, 2004, 2007 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. This file is copied from schedlock.c. */ #include #include #include #include void *thread_function(void *arg); /* Pointer to function executed by each thread */ #define NUM 5 unsigned int args[NUM+1]; int main() { int res; int all_started; pthread_t threads[NUM]; void *thread_result; long i; for (i = 0; i < NUM; i++) { args[i] = 1; /* Init value. */ res = pthread_create(&threads[i], NULL, thread_function, (void *) i); } all_started = 0; while (!all_started) { all_started = 1; for (i = 0; i < NUM; i++) { if (args[i] == 1) { all_started = 0; break; } } } args[i] = 1; /* Break here */ thread_function ((void *) i); exit(EXIT_SUCCESS); } void *thread_function(void *arg) { int my_number = (long) arg; int *myp = (int *) &args[my_number]; /* Don't run forever. Run just short of it :) */ while (*myp > 0) { (*myp) ++; /* Loop increment. */ } pthread_exit(NULL); }