/*

* 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 LOADGEN_MEMORYEAT_H

#define LOADGEN_MEMORYEAT_H

// INCLUDES

#include <e32std.h>

#include <e32base.h>

#include <f32file.h>

#include "loadgen_loadbase.h"

#include "loadgen_loadattributes.h"

// FORWARD DECLARATIONS

// CLASS DECLARATIONS

class CMemoryEat : public CLoadBase

    {

public:

    static CMemoryEat* NewL(TMemoryEatAttributes& aAttributes, TInt aReferenceNumber);

    virtual ~CMemoryEat();

private: // Constructors

    CMemoryEat(TMemoryEatAttributes& aAttributes, TInt aReferenceNumber);

    void ConstructL();  

public:  // New methods

    virtual void Resume();

    virtual void Suspend();

    virtual void SetPriority();

    virtual void Close();

    virtual TPtrC Description();

    inline TMemoryEatAttributes& Attributes() { return iAttributes; }

public:  // New static methods

    static TInt ThreadFunction(TAny* aThreadArg);

private:

    static void GenerateLoad(TMemoryEatAttributes& aAttributes);

private: // Data

    TMemoryEatAttributes    iAttributes;    

    RThread                 iThread;

    };

class CMemoryEatManager : public CActive

    {

public:

    static CMemoryEatManager* NewL(TMemoryEatAttributes& aAttributes);

    ~CMemoryEatManager();

private:

    CMemoryEatManager(TMemoryEatAttributes& aAttributes);

    void ConstructL();

private:

    void RunL();

    void DoCancel();

private:

    static TInt PeriodicTimerCallBack(TAny* aAny);

    void InitMemoryEatL();

    void DestroyMemoryEat();

    void EatMemoryL();

    void DoEatMemoryL( TInt64 aNewSize );

    void HandleEatMemoryL( TInt64 aNewSize );

    void AllocMemoryL( TInt64 aNewSize );

    void FreeMemoryL( TInt64 aNewSize );

    TInt64 ReadFreeMemory();

public:

    inline CPeriodic* PeriodicTimer() { return iPeriodicTimer; }

private:

    TMemoryEatAttributes&   iAttributes;    

    CPeriodic*              iPeriodicTimer;

    RChunk                  iEatChunk;

    RFile                   iEatFile;

    RFs                     iFs;

    TBool                   iWavyEatMoreMemory;

    TInt     iFilesCounter;

    };

#endif