rwlock.h

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
 
#ifndef __GUAC_RWLOCK_H
#define __GUAC_RWLOCK_H
 
#include <pthread.h>


typedef struct guac_rwlock {

    pthread_rwlock_t lock;

    pthread_key_t key;
 
} guac_rwlock;

void guac_rwlock_init(guac_rwlock* lock);

void guac_rwlock_destroy(guac_rwlock* lock);

int guac_rwlock_acquire_write_lock(guac_rwlock* reentrant_rwlock);

int guac_rwlock_acquire_read_lock(guac_rwlock* reentrant_rwlock);

int guac_rwlock_release_lock(guac_rwlock* reentrant_rwlock);
 
#endif