/*  * rwlock5.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 static rwlock object, rdlock it, tryrdlock it,  * and then unlock it again. * * Depends on API functions:  *	pthread_rwlock_rdlock() *	pthread_rwlock_tryrdlock() *	pthread_rwlock_unlock() */#include "test.h" pthread_rwlock_t rwlock1 = PTHREAD_RWLOCK_INITIALIZER;static int washere = 0;void * func(void * arg){  assert(pthread_rwlock_tryrdlock(&rwlock1) == 0);  assert(pthread_rwlock_unlock(&rwlock1) == 0);  washere = 1;  return 0; } intmain(){  pthread_t t;  assert(pthread_rwlock_rdlock(&rwlock1) == 0);  assert(pthread_create(&t, NULL, func, NULL) == 0);  Sleep(2000);  assert(pthread_rwlock_unlock(&rwlock1) == 0);  assert(washere == 1);  return 0;}