| /* |
| * spin2.c |
| * |
| * |
| * -------------------------------------------------------------------------- |
| * |
| * Pthreads-win32 - POSIX Threads Library for Win32 |
| * Copyright(C) 1998 John E. Bossom |
| * Copyright(C) 1999,2005 Pthreads-win32 contributors |
| * |
| * Contact Email: rpj@callisto.canberra.edu.au |
| * |
| * The current list of contributors is contained |
| * in the file CONTRIBUTORS included with the source |
| * code distribution. The list can also be seen at the |
| * following World Wide Web location: |
| * http://sources.redhat.com/pthreads-win32/contributors.html |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library in the file COPYING.LIB; |
| * if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
| * |
| * -------------------------------------------------------------------------- |
| * |
| * Declare a spinlock object, lock it, trylock it, |
| * and then unlock it again. |
| * |
| */ |
| |
| #include "test.h" |
| |
| pthread_spinlock_t lock = NULL; |
| |
| static int washere = 0; |
| |
| void * func(void * arg) |
| { |
| assert(pthread_spin_trylock(&lock) == EBUSY); |
| |
| washere = 1; |
| |
| return 0; |
| } |
| |
| int |
| main() |
| { |
| pthread_t t; |
| |
| assert(pthread_spin_init(&lock, PTHREAD_PROCESS_PRIVATE) == 0); |
| |
| assert(pthread_spin_lock(&lock) == 0); |
| |
| assert(pthread_create(&t, NULL, func, NULL) == 0); |
| assert(pthread_join(t, NULL) == 0); |
| |
| assert(pthread_spin_unlock(&lock) == 0); |
| |
| assert(pthread_spin_destroy(&lock) == 0); |
| |
| assert(washere == 1); |
| |
| return 0; |
| } |