Semaphore.cpp

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/*
 * Semaphore.cpp
 *
 * Copyright (C) 2011 IBR, TU Braunschweig
 *
 * Written-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 *
 * Licensed 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.
 *
 */

#include "ibrcommon/config.h"
#include "ibrcommon/thread/Semaphore.h"
#include <iostream>

using namespace std;

namespace ibrcommon
{
        Semaphore::Semaphore(unsigned int value)
        {
                sem_init(&count_sem, 0, value);
        }

        Semaphore::~Semaphore()
        {
                sem_destroy(&count_sem);
        }

        void Semaphore::wait()
        {
                sem_wait(&count_sem);
        }

        void Semaphore::post()
        {
                sem_post(&count_sem);
        }
}