| /* A small multi-threaded test case. |
| |
| Copyright 2004, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| 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 <pthread.h> |
| #include <stdio.h> |
| #include <time.h> |
| |
| void |
| cond_wait (pthread_cond_t *cond, pthread_mutex_t *mut) |
| { |
| pthread_mutex_lock(mut); |
| pthread_cond_wait (cond, mut); |
| pthread_mutex_unlock (mut); |
| } |
| |
| void |
| noreturn (void) |
| { |
| pthread_mutex_t mut; |
| pthread_cond_t cond; |
| |
| pthread_mutex_init (&mut, NULL); |
| pthread_cond_init (&cond, NULL); |
| |
| /* Wait for a condition that will never be signaled, so we effectively |
| block the thread here. */ |
| cond_wait (&cond, &mut); |
| } |
| |
| void * |
| forever_pthread (void *unused) |
| { |
| noreturn (); |
| } |
| |
| void |
| break_me (void) |
| { |
| /* Just an anchor to help putting a breakpoint. */ |
| } |
| |
| int |
| main (void) |
| { |
| pthread_t forever; |
| const struct timespec ts = { 0, 10000000 }; /* 0.01 sec */ |
| |
| pthread_create (&forever, NULL, forever_pthread, NULL); |
| for (;;) |
| { |
| nanosleep (&ts, NULL); |
| break_me(); |
| } |
| |
| return 0; |
| } |
| |