1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 #ifndef MEMSPYENGINECHUNKWATCHER_H

    19 #define MEMSPYENGINECHUNKWATCHER_H

    20 

    21 // System includes

    22 #include <e32base.h>

    23 

    24 // Classes referenced

    25 class RMemSpyDriverClient;

    26 

    27 

    28 class MMemSpyEngineChunkWatcherObserver

    29 	{

    30 public: // From MMemSpyEngineChunkWatcherObserver

    31 	virtual void HandleChunkAddL( TUint aChunkHandle ) = 0;

    32     virtual void HandleChunkDestroyL( TUint aChunkHandle ) = 0;

    33 	};

    34 

    35 

    36 NONSHARABLE_CLASS( CMemSpyEngineChunkWatcher ) : public CActive

    37     {

    38 public:

    39 	static CMemSpyEngineChunkWatcher* NewL( RMemSpyDriverClient& aDriver, TInt aPriority = CActive::EPriorityStandard );

    40 	~CMemSpyEngineChunkWatcher();

    41 

    42 private:

    43 	CMemSpyEngineChunkWatcher( RMemSpyDriverClient& aDriver, TInt aPriority );

    44 	void ConstructL();

    45 

    46 public: // API

    47     void AddObserverL( MMemSpyEngineChunkWatcherObserver& aObserver );

    48     void RemoveObserver( MMemSpyEngineChunkWatcherObserver& aObserver );

    49 

    50 private: // From CActive

    51 	void RunL();

    52 	void DoCancel();

    53 

    54 private: // Internal methods

    55     void Request();

    56     void NotifyChunkAddL( TUint aChunkHandle );

    57     void NotifyChunkDestroyL( TUint aChunkHandle );

    58 

    59 private: // Data members

    60     TUint iId;

    61     TUint iEventMonitorHandle;

    62     RMemSpyDriverClient& iDriver;

    63 	RPointerArray< MMemSpyEngineChunkWatcherObserver > iObservers;

    64     };

    65 

    66 

    67 

    68 

    69 #endif