/*

* 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 "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:

*   This file contains headers of synchronziation objects. These classes are Mutex, Semaphore and

*   Event classes. Implementation of TimeoutException is defined.

*/

#ifndef SYNC_H

#define SYNC_H

#include <windows.h>

#include <process.h>

#include <string>

using namespace std;

//**********************************************************************************

// Class TimeoutException

//

//**********************************************************************************

class TimeoutException

{

public:

	TimeoutException(const char* s = "") { m_Message.assign(s); }

	const string& GetMessage() const { return m_Message; }

private:	

	string m_Message;

};

//**********************************************************************************

// Class Mutex

//

// This class implements a Mutex using Windows API synchronization mechanism 

//**********************************************************************************

class Mutex

{

public:

	Mutex(void);

	~Mutex(void);

	void Lock(void);

	void Unlock(void);

private:

	CRITICAL_SECTION m_Lock;

};

//**********************************************************************************

// Class Semaphore

//

// This class encapsulates Windows API Semaphore functionality

//**********************************************************************************

class Semaphore

{

public:

	Semaphore(void);

	Semaphore(int available);

	~Semaphore(void);

	DWORD Wait(DWORD timeout = INFINITE);

	void Notify(void);

	void Notify(int how_many);

private:

	HANDLE m_Semaphore;

};

//**********************************************************************************

// Class Event

//

// This class encapsulates Windows API Event functionality

//**********************************************************************************

class Event

{

public:

	Event(bool manual_reset = false);

	~Event(void);

	void Set(void);

	void Reset(void);

	DWORD Wait(DWORD timeout = INFINITE);

	HANDLE EventHandle() const;

private:

	HANDLE m_Event;

};

#endif

// End of the file