/*

* 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 MEMSPYDRIVERLOGICALCHANHEAPDATABASE_H

#define MEMSPYDRIVERLOGICALCHANHEAPDATABASE_H

// System includes

#include <e32cmn.h>

#include <kern_priv.h>

#ifdef __MARM__

#include <arm.h>

#endif

#include <memspy/driver/memspydriverobjectsshared.h>

#include <memspy/driver/memspydriverenumerationsshared.h>

// User includes

#include "MemSpyDriverHeap.h"

#include "MemSpyDriverOpCodes.h"

#include "MemSpyDriverLogChanHeapBase.h"

#include "MemSpyDriverObjectsInternal.h"

#include "MemSpyDriverHeapWalker.h"

#include "MemSpyDriverEnumerationsInternal.h"

// Classes referenced

class DMemSpyDriverDevice;

class RMemSpyMemStreamWriter;

const static TInt KPageSize = 4096;

	{

public:

	DMemSpyDriverLogChanHeapDataBase( DMemSpyDriverDevice& aDevice, DThread& aThread );

	~DMemSpyDriverLogChanHeapDataBase();

private: // From MHeapWalkerObserver

    void HandleHeapWalkInit();

    TBool HandleHeapCell( TMemSpyDriverCellType aCellType, TAny* aCellAddress, TInt aLength, TInt aNestingLevel, TInt aAllocNumber );   

protected: // For use by the base classes

    TInt PrepareCellListTransferBuffer();

    TInt FetchCellList(TDes8* aBufferSink);

    void ReleaseCellList();

    TInt CalculateCellListBufferSize() const;

    TInt GetFullData( TMemSpyDriverInternalHeapDataParams* aParams );

    TInt DoGetFullData(TMemSpyDriverInternalHeapDataParams& aParams, DThread* aThread, RMemSpyDriverRHeapBase& aHeap);

protected: // To be implemetned by the base classes

    virtual TInt GetFullData( TMemSpyDriverInternalHeapDataParams& aParams ) = 0;

protected: // Data members

    TMemSpyDriverInternalHeapRequestParameters iHeapInfoParams;

	RArray<TMemSpyDriverCell> iCellList;

    RMemSpyMemStreamWriter* iHeapStream;

	};

#endif