//-----------------------------------------------------------------------------
//
//	Mutex.cpp
//
//	Cross-platform mutex
//
//	Copyright (c) 2010 Mal Lansell <mal@lansell.org>
//	All rights reserved.
//
//	SOFTWARE NOTICE AND LICENSE
//
//	This file is part of OpenZWave.
//
//	OpenZWave is free software: you can redistribute it and/or modify
//	it under the terms of the GNU Lesser General Public License as published
//	by the Free Software Foundation, either version 3 of the License,
//	or (at your option) any later version.
//
//	OpenZWave 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 Lesser General Public License for more details.
//
//	You should have received a copy of the GNU Lesser General Public License
//	along with OpenZWave.  If not, see <http://www.gnu.org/licenses/>.
//
//-----------------------------------------------------------------------------
#include "Defs.h"
#include "platform/Mutex.h"

#ifdef WIN32
#include "platform/windows/MutexImpl.h"	// Platform-specific implementation of a mutex
#elif defined WINRT
#include "platform/winRT/MutexImpl.h"	// Platform-specific implementation of a mutex
#else
#include "platform/unix/MutexImpl.h"	// Platform-specific implementation of a mutex
#endif

namespace OpenZWave
{
	namespace Internal
	{
		namespace Platform
		{

//-----------------------------------------------------------------------------
//	<Mutex::Mutex>
//	Constructor
//-----------------------------------------------------------------------------
			Mutex::Mutex() :
					m_pImpl(new MutexImpl())
			{
			}

//-----------------------------------------------------------------------------
//	<Mutex::~Mutex>
//	Destructor
//-----------------------------------------------------------------------------
			Mutex::~Mutex()
			{
				delete m_pImpl;
			}

//-----------------------------------------------------------------------------
//	<Mutex::Lock>
//	Lock the mutex
//-----------------------------------------------------------------------------
			bool Mutex::Lock(bool const _bWait // = true;
					)
			{
				return m_pImpl->Lock(_bWait);
			}

//-----------------------------------------------------------------------------
//	<Mutex::Unlock>
//	Release our lock on the mutex
//-----------------------------------------------------------------------------
			void Mutex::Unlock()
			{
				m_pImpl->Unlock();

				if (IsSignalled())
				{
					// The mutex has no owners, so notify the watchers
					Notify();
				}
			}

//-----------------------------------------------------------------------------
//	<Mutex::IsSignalled>
//	Test whether the event is set
//-----------------------------------------------------------------------------
			bool Mutex::IsSignalled()
			{
				return m_pImpl->IsSignalled();
			}
		} // namespace Platform
	} // namespace Internal
} // namespace OpenZWave
