jsemaphore.h
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/***************************************************************************
* Copyright (C) 2005 by Jeff Ferr *
* root@sat *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef J_SEMAPHORE_H
#define J_SEMAPHORE_H
#include "jthread.h"
#include <sys/types.h>
#include <stdint.h>
#include <semaphore.h>
namespace jthread {
/**
* \brief Use struct timespec.
*
*/
/*
struct semaphore_time_t {
long seconds;
long nano_seconds;
};
*/
/**
* \brief Semaphore.
*
* @author Jeff Ferr
*/
class Semaphore {
private:
/** \brief Semaphore handler. */
sem_t _semaphore;
/** \brief */
int16_t _count;
public:
/**
* \brief Construtor.
*
*/
Semaphore(uint16_t = 0);
/**
* \brief Destrutor virtual.
*
*/
virtual ~Semaphore();
/*
* \brief
*
*/
void Close();
/**
* \brief Lock the semaphore.
*
*/
void Wait();
/**
* \brief Lock semaphore.
*
*/
void Wait(struct timespec time_);
/**
* \brief Notify the locked semaphore.
*
*/
void Notify();
/**
* \brief Try lock the semaphore.
*
*/
bool TryWait();
/**
* \brief
*
*/
int GetValue();
};
};
#endif