flag.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_FLAG_H
#define GUAC_FLAG_H
 
#include "flag-types.h"
 
#include <pthread.h>
 
struct guac_flag {

    pthread_mutex_t value_mutex;

    pthread_cond_t value_changed;

    unsigned int value;
 
};

void guac_flag_init(guac_flag* event_flag);

void guac_flag_destroy(guac_flag* event_flag);

void guac_flag_set(guac_flag* event_flag,
        unsigned int flags);

void guac_flag_set_and_lock(guac_flag* event_flag,
        unsigned int flags);

void guac_flag_clear(guac_flag* event_flag,
        unsigned int flags);

void guac_flag_clear_and_lock(guac_flag* event_flag,
        unsigned int flags);

void guac_flag_lock(guac_flag* event_flag);

void guac_flag_unlock(guac_flag* event_flag);

void guac_flag_wait_and_lock(guac_flag* event_flag,
        unsigned int flags);

int guac_flag_timedwait_and_lock(guac_flag* event_flag,
        unsigned int flags, unsigned int msec_timeout);
 
#endif