/*

* 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:

*

*/

#ifndef MEMSPYDRIVERSTREAMWRITER_H

#define MEMSPYDRIVERSTREAMWRITER_H

// System includes

#include <e32cmn.h>

#include <kernel.h>

// Classes referenced

class DMemSpyDriverXferBuffer;

class RMemSpyMemStreamWriter

    {

public:

    RMemSpyMemStreamWriter();

    RMemSpyMemStreamWriter( DMemSpyDriverXferBuffer& aBuffer );

public: // API - closure

    void Close();

    TInt WriteAndClose( TDes8* aDestinationPointer );

public: // API - writing

    TInt32* WriteInt32( TInt32 aValue );

    TUint32* WriteUint32( TUint32 aValue );

public: // API - positioning

    TUint8* Current() const;

    void Seek( TInt aPosition );

    TUint32 Remaining() const;

public: // API - marking

    void MarkSet();

    void MarkResume();

public: // API - misc

    TBool IsFull() const;

    TBool IsOpen() const;

public: // API - operators

    RMemSpyMemStreamWriter& operator=( const RMemSpyMemStreamWriter& aCopy );

private: // Internal methods

    void IncrementPos( TInt aAmount );

private:

    DMemSpyDriverXferBuffer* iBuffer;

    TUint8* iCurrent;

    TUint8* iMax;

    TUint8* iMark;

    TInt iCommitted;

    };

#endif