1/* Manythreads test program. 2 Copyright 2004, 2006, 2007 Free Software Foundation, Inc. 3 4 Written by Jeff Johnston <jjohnstn@redhat.com> 5 Contributed by Red Hat 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22#include <pthread.h> 23#include <stdio.h> 24#include <limits.h> 25 26void * 27thread_function (void *arg) 28{ 29 int x = * (int *) arg; 30 31 printf ("Thread <%d> executing\n", x); 32 33 return NULL; 34} 35 36int 37main (int argc, char **argv) 38{ 39 pthread_attr_t attr; 40 pthread_t threads[256]; 41 int args[256]; 42 int i, j; 43 44 pthread_attr_init (&attr); 45 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN); 46 47 /* Create a ton of quick-executing threads, then wait for them to 48 complete. */ 49 for (i = 0; i < 1000; ++i) 50 { 51 for (j = 0; j < 256; ++j) 52 { 53 args[j] = i * 1000 + j; 54 pthread_create (&threads[j], &attr, thread_function, &args[j]); 55 } 56 57 for (j = 0; j < 256; ++j) 58 { 59 pthread_join (threads[j], NULL); 60 } 61 } 62 63 pthread_attr_destroy (&attr); 64 65 return 0; 66} 67