/* This testcase is part of GDB, the GNU debugger. Copyright 2002-2013 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 <stdio.h> #include <unistd.h> #include <stdlib.h> #include <pthread.h> void *thread_function(void *arg); /* Pointer to function executed by each thread */ #define NUM 5 unsigned int args[NUM+1]; int main() { int res; pthread_t threads[NUM]; void *thread_result; long i; for (i = 1; i <= NUM; i++) { args[i] = 1; res = pthread_create(&threads[i - 1], NULL, thread_function, (void *) i); } /* last thread start. */ args[0] = 1; thread_function ((void *) 0); 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) { /* main loop. */ (*myp) ++; usleep (1); } pthread_exit(NULL); }