/* 
 * rwlock3.c
 *
 *
 * Pthreads-win32 - POSIX Threads Library for Win32
 * Copyright (C) 1998 Ben Elliston and Ross Johnson
 * Copyright (C) 1999,2000,2001 Ross Johnson
 *
 * Contact Email: rpj@ise.canberra.edu.au
 *
 * 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 2.1 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; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * --------------------------------------------------------------------------
 *
 * Declare a static rwlock object, wrlock it, trywrlock it, 
 * and then unlock it again.
 *
 * Depends on API functions: 
 *	pthread_rwlock_wrlock()
 *	pthread_rwlock_trywrlock()
 *	pthread_rwlock_unlock()
 */

#include "test.h"
 
pthread_rwlock_t rwlock1 = PTHREAD_RWLOCK_INITIALIZER;

static int washere = 0;

void * func(void * arg)
{
  assert(pthread_rwlock_trywrlock(&rwlock1) == EBUSY);

  washere = 1;

  return 0; 
}
 
int
main()
{
  pthread_t t;

  assert(pthread_rwlock_wrlock(&rwlock1) == 0);

  assert(pthread_create(&t, NULL, func, NULL) == 0);

  Sleep(2000);

  assert(pthread_rwlock_unlock(&rwlock1) == 0);

  assert(washere == 1);

  return 0;
}