1/* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2002, 2003, 2004, 2007 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. 17 18 This file is copied from schedlock.c. */ 19 20#include <stdio.h> 21#include <unistd.h> 22#include <stdlib.h> 23#include <pthread.h> 24 25void *thread_function(void *arg); /* Pointer to function executed by each thread */ 26 27#define NUM 5 28 29unsigned int args[NUM+1]; 30 31int main() { 32 int res; 33 pthread_t threads[NUM]; 34 void *thread_result; 35 long i; 36 37 for (i = 0; i < NUM; i++) 38 { 39 args[i] = 1; /* Init value. */ 40 res = pthread_create(&threads[i], 41 NULL, 42 thread_function, 43 (void *) i); 44 } 45 46 args[i] = 1; 47 thread_function ((void *) i); 48 49 exit(EXIT_SUCCESS); 50} 51 52void *thread_function(void *arg) { 53 int my_number = (long) arg; 54 int *myp = (int *) &args[my_number]; 55 56 /* Don't run forever. Run just short of it :) */ 57 while (*myp > 0) 58 { 59 (*myp) ++; /* Loop increment. */ 60 } 61 62 pthread_exit(NULL); 63} 64 65