// Copyright (c) 2007-2009 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:

// mmrcserverphysicaladaptation.h

// 

//

#ifndef MMRCPHYSICALADAPTATION_H_

#define MMRCPHYSICALADAPTATION_H_

#include <e32std.h>

#include <e32base.h>

#include <a3f/a3fbase.h>

#include <a3f/a3f_trace_utils.h>

#include "mmrcclientserver.h"

#include "maudiostreamadaptationobserver.h"

class MLogicalChain;

class MAudioContext;

class CFourCCConvertor;

class CMMRCServerSideAdaptationResponseAO;

class CAudioStreamAdaptation;

class CMMRCServerSession;

//------------------------------------------------------------------------------------

// CMMRCClientSideServerRequestToAdaptationAO

//------------------------------------------------------------------------------------

/**

@internalComponent

This class implements the proxy to the Physical adaptation.

The main purpose of this class is to communicate with the physical resource manager.

*/

NONSHARABLE_CLASS( CMMRCClientSideServerRequestToAdaptationAO ): public CActive, public MAudioStreamAdaptationObserver

	{

public:

	/**

	 * Constructs, and returns a pointer to, a new CMMRCClientSideServerRequestToAdaptationAO object.

	 * Leaves on failure.

	 * @param CMMRCServerController& A reference on the MMRC Server controller

	 * @return CMMRCClientSideServerRequestToAdaptationAO* A pointer to newly created utlitly object.

	 */

	IMPORT_C static CMMRCClientSideServerRequestToAdaptationAO* NewL( );

	/**

	 * Destructor.

	 */

	~CMMRCClientSideServerRequestToAdaptationAO( );

public:

	void Initialize(CMMRCServerSession* aServerSession,

					CMMRCServerSideAdaptationResponseAO* aCallback,

					RThread* aClientThread,

					const CFourCCConvertor& aFourCCConvertor);

	void Service(TUint aRequestType);

	/**

	 * Callback in case of timeout

	 */

	void ResourceRequestAcknowledgmentTimeout( );

	// from MAudioStreamAdaptationObserver

	void PhysicalAdaptationEvent(TPhysicalEvent aEvent, TInt aError);

	void StateEvent(TInt aReason, TAudioState aNewState);

	void AddProcessingUnitComplete(TUid aType, TInt aError);

	void RemoveProcessingUnitComplete(TUid aType, TInt aError);

	void ProcessingFinished();

	void FlushComplete(TInt aError);

	//From CActive

	virtual void RunL();

	virtual void DoCancel();

private:

	/**

	 * By default Symbian 2nd phase constructor is private.

	 * @param CMMRCServerController& A reference on the MMRC Server controller

	 */

	CMMRCClientSideServerRequestToAdaptationAO( );

	void TidyUp();

	/**

	 * By default Symbian 2nd phase constructor is private.

	 */

	void ConstructL( );

private:

	//owned

	CAudioStreamAdaptation* iStreamAdaptation;

	//not owned

	RThread* iClientThread;

	CMMRCServerSession* iServerSession;

	CMMRCServerSideAdaptationResponseAO* iMMRCServerSideAdaptationResponseAO;

	MLogicalChain* iLogicalChainRequested;

	MLogicalChain* iLogicalChainLastCommited;

	MAudioContext* iAudioContext;

	TInt iRequestsProcessed;

	TUint iRequestType;

	};

//------------------------------------------------------------------------------------

// CMMRCServerSideAdaptationResponseAO

//------------------------------------------------------------------------------------

/**

@internalComponent

*/

NONSHARABLE_CLASS( CMMRCServerSideAdaptationResponseAO ) : public CActive

	{

public:

	~CMMRCServerSideAdaptationResponseAO();

	static CMMRCServerSideAdaptationResponseAO* NewL();

	void Initialize(CMMRCServerSession* aServerSession, RThread* iServerThread );

	void Service(TMMRCAdaptationToServerRequestResults aEvent, TInt aError);

	void StartAdaptationListening();

private:

	CMMRCServerSideAdaptationResponseAO();

	void ConstructL( );

	void RunL( );

	void DoCancel( );

private:

	//not owned

	CMMRCServerSession* iMMRCServerSession;

	RThread* iServerThread;

	TMMRCAdaptationToServerRequestResults iEvent;

	TInt iError;

	};

#endif /*MMRCPHYSICALADAPTATION_H_*/