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/*
Copyright (c) 2007-2010 iMatix Corporation
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the Lesser GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ 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
Lesser GNU General Public License for more details.
You should have received a copy of the Lesser GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ZMQ_MUTEX_HPP_INCLUDED__
#define __ZMQ_MUTEX_HPP_INCLUDED__
#include "platform.hpp"
#include "err.hpp"
// Mutex class encapsulates OS mutex in a platform-independent way.
#ifdef ZMQ_HAVE_WINDOWS
#include "windows.hpp"
namespace zmq
{
class mutex_t
{
public:
inline mutex_t ()
{
InitializeCriticalSection (&cs);
}
inline ~mutex_t ()
{
DeleteCriticalSection (&cs);
}
inline void lock ()
{
EnterCriticalSection (&cs);
}
inline void unlock ()
{
LeaveCriticalSection (&cs);
}
private:
CRITICAL_SECTION cs;
// Disable copy construction and assignment.
mutex_t (const mutex_t&);
void operator = (const mutex_t&);
};
}
#else
#include <pthread.h>
namespace zmq
{
class mutex_t
{
public:
inline mutex_t ()
{
int rc = pthread_mutex_init (&mutex, NULL);
if (rc)
posix_assert (rc);
}
inline ~mutex_t ()
{
int rc = pthread_mutex_destroy (&mutex);
if (rc)
posix_assert (rc);
}
inline void lock ()
{
int rc = pthread_mutex_lock (&mutex);
if (rc)
posix_assert (rc);
}
inline void unlock ()
{
int rc = pthread_mutex_unlock (&mutex);
if (rc)
posix_assert (rc);
}
private:
pthread_mutex_t mutex;
// Disable copy construction and assignment.
mutex_t (const mutex_t&);
void operator = (const mutex_t&);
};
}
#endif
#endif
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