/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#include "stdafx.h"

#include "mutex.h"

Mutex::Mutex()

{

	m_hMutex = NULL;

	m_waitTimeout = 0L;

	m_mutexOpen = FALSE;

}

Mutex::~Mutex()

{

	Close();

}

BOOL Mutex::Open(CHAR *mutexName, DWORD waitTimeout)

{

#ifdef WIN32

	m_hMutex = ::CreateMutex(NULL, FALSE, mutexName);

#else

#error non Win32

#endif

	if (m_hMutex == NULL) 

		m_mutexOpen = FALSE;

	else

	{

		m_mutexOpen = TRUE;

		m_waitTimeout = waitTimeout;

	}

	return m_mutexOpen;

}

void Mutex::Close()

{

	if (m_mutexOpen)

	{

#ifdef WIN32

		::ReleaseMutex(m_hMutex);

		::CloseHandle(m_hMutex);

#else

#error non WIN32

#endif

		m_hMutex = NULL;

		m_mutexOpen = FALSE;

	}

}

BOOL Mutex::Wait()

{

#ifdef WIN32

	DWORD dwWaitResult = ::WaitForSingleObject(m_hMutex, m_waitTimeout); 

	if (dwWaitResult == WAIT_OBJECT_0)

	{

		return TRUE;

	}

	return FALSE;

#else

#error non WIN32

#endif

}

BOOL Mutex::Release()

{

	BOOL ret = FALSE;

#ifdef WIN32

	ret = ::ReleaseMutex(m_hMutex);

#else

#error non WIN32

#endif

	return ret;

}