// Copyright (c) 2003-2009 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:

//

#ifndef __CMSVCHANGEBUFFER_H__

#define __CMSVCHANGEBUFFER_H__

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

// TMsvChangeRecord

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

class CMsvChangeRecord : public CBase

/**

@internalComponent

@released

*/

	{

public:

	static CMsvChangeRecord* NewL(const TDesC8& aChange, TUint32 aNotifySequence);

	~CMsvChangeRecord();

	//

	inline const TDesC8& Change() const;

	inline TUint32 NotifySequence() const;

	//

private:

	CMsvChangeRecord(TUint32 aNotifySequence);

	void ConstructL(const TDesC8& aChange);

	//

private:

	HBufC8* iChange;

	TUint32 iNotifySequence;

	};

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

// CMsvChangeBuffer

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

const TInt KMsvChangeBufferSize=16;

const TInt KMsvChangeBufferGranularity=16;

class CMsvChangeBuffer : public CBase

/**

@internalComponent

@released

*/

	{

public:

	static CMsvChangeBuffer* NewL();

	~CMsvChangeBuffer();

	//

	inline TBool IsEmpty() const;

	inline TUint32 NotifySequence() const;

	//

	void InL(const TDesC8& aChange);

	const TDesC8& Next(TUint32& aNotifySequence);

	void Out();

private:

	CMsvChangeBuffer();

	void ConstructL();

	void ShrinkArray();

	void GrowArrayL();

private:

	TInt iInPos;

	TInt iOutPos;

	CArrayPtrFlat<CMsvChangeRecord>* iArray;

	TUint iNotifySequence;

	};

#include "CMsvChangeBuffer.inl"

#endif // __CMSVCHANGEBUFFER_H__