| 1 | /* Manythreads test program. |
| 2 | Copyright 2004, 2006-2012 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 | |
| 26 | void * |
| 27 | thread_function (void *arg) |
| 28 | { |
| 29 | int x = * (int *) arg; |
| 30 | |
| 31 | printf ("Thread <%d> executing\n", x); |
| 32 | |
| 33 | return NULL; |
| 34 | } |
| 35 | |
| 36 | int |
| 37 | main (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 | |
| 46 | #ifdef PTHREAD_STACK_MIN |
| 47 | pthread_attr_setstacksize (&attr, 2*PTHREAD_STACK_MIN); |
| 48 | #endif |
| 49 | |
| 50 | /* Create a ton of quick-executing threads, then wait for them to |
| 51 | complete. */ |
| 52 | for (i = 0; i < 1000; ++i) |
| 53 | { |
| 54 | for (j = 0; j < 256; ++j) |
| 55 | { |
| 56 | args[j] = i * 1000 + j; |
| 57 | pthread_create (&threads[j], &attr, thread_function, &args[j]); |
| 58 | } |
| 59 | |
| 60 | for (j = 0; j < 256; ++j) |
| 61 | { |
| 62 | pthread_join (threads[j], NULL); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | pthread_attr_destroy (&attr); |
| 67 | |
| 68 | return 0; |
| 69 | } |