// Copyright (c) 2002-2009 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 __LOGNOTIFY_H__

 #define __LOGNOTIFY_H__

 #include <logcli.h>

 #include "LogServBackupObserver.h"

 #include "LogServDatabaseChangeObserver.h"

 // Classes referenced

 class MLogServBackupInterface;

 class MLogServDatabaseChangeInterface;

 /**

 Uses the previous classes to provide change notifications

 @internalComponent

 */

 class CLogNotify : public CTimer, public MLogServBackupObserver, public MLogServDatabaseChangeObserver

 	{

 public:

 	static CLogNotify* NewL(MLogServBackupInterface& aBackupInterface, MLogServDatabaseChangeInterface& aChangeInterface, TInt aPriority);

 	~CLogNotify();

 private:

 	CLogNotify(MLogServBackupInterface& aBackupInterface, MLogServDatabaseChangeInterface& aChangeInterface, TInt aPriority);

 	void ConstructL();

 public:

 	void Notify(TTimeIntervalMicroSeconds32 aDelay, const RMessage2& aMessage);

 private: // FROM MLogServDatabaseChangeObserver

 	void DCOHandleChangeEventsL(const CLogChangeDefinition& aChanges);

 private: // FROM MLogServBackupObserver

 	void BOHandleEventL(TLogServBackupEvent aEvent);

 public: // FROM CActive

 	void Cancel();

 private: // FROM CActive

 	void RunL();

 	void DoCancel();

 private: // Internal

 	void CheckForChanges();

 	void CompleteClientRequest(TInt aCompletionCode);

 private:

 	/**

 	 * So this object knows when a backup is starting. Have to cancel the delay timer

 	 * during this period.

 	 */

 	MLogServBackupInterface& iBackupInterface;

 	/**

 	 * The change interface

 	 */

 	MLogServDatabaseChangeInterface& iChangeInterface;

 	/**

 	 * Counters for change tracking

 	 */

 	TUint iLastCommit;

 	TUint iCommit;

 	/**

 	 * The client-side outstanding notification request

 	 */

 	RMessagePtr2 iMessagePtr;

 	/**

 	 * Used as a flag to indicate whether the client-side message should

 	 * be completed

 	 */

 	TBool iCompleteClientMessage;

 #ifdef LOGGING_ENABLED

 public:

 	TName iClientThreadName;

 	inline void SetClientThreadName(const TDesC& aName) { iClientThreadName = aName; }

 #endif

 	};

 #endif