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/**
** \file Semaphore.h
** \date 2007-04-13
** \author grymse@alhem.net
**/
/*
Copyright (C) 2007 Anders Hedstrom
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 _SOCKETS_Semaphore_H
#define _SOCKETS_Semaphore_H
#include "sockets-config.h"
#include <pthread.h>
#ifdef MACOSX
#include <sys/semaphore.h>
#else
#include <semaphore.h>
#endif
#ifdef SOCKETS_NAMESPACE
namespace SOCKETS_NAMESPACE {
#endif
/** pthread semaphore wrapper.
\ingroup threading */
class Semaphore
{
public:
Semaphore();
Semaphore(unsigned int start_val);
~Semaphore();
int Post();
int Wait();
int TryWait();
int GetValue(int&);
private:
Semaphore(const Semaphore& ) {} // copy constructor
Semaphore& operator=(const Semaphore& ) { return *this; } // assignment operator
sem_t m_sem;
};
#ifdef SOCKETS_NAMESPACE
} // namespace SOCKETS_NAMESPACE {
#endif
#endif // _SOCKETS_Semaphore_H
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