| /* This testcase is part of GDB, the GNU debugger. |
| |
| Copyright 2002, 2003, 2004 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 <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; |
| 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); |
| } |
| |