/*

* Copyright (c) 2006-2007 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:  ?Description

*

*/

#include <e32base.h>

//Max size in Bytes

const TInt KCacheLimitSize = 8*1024*1024;

class CIRCacheMgmt;

NONSHARABLE_CLASS (CIRCacheCleanup):public CTimer

	{

	public:

    /**

     * Two-phased constructor.

     * @return  The newly created object.

     */

    static CIRCacheCleanup* NewL(CIRCacheMgmt& aCacheDb);

    /**

     * Destructor.

     */

    ~CIRCacheCleanup();

	private:

    /**

     * Default Constructor.

     * @param CIRCacheMgmt refrerence

     */

    CIRCacheCleanup(CIRCacheMgmt& aCacheDb);

    /**

     * Second-phase constructor.

     */

    void ConstructL();

    /**

     *CleanupCacheDbL()

     * Cleansup routine

     */

    void CleanupCacheDbL();

    /**

     *CheckStatusL()

     * CheckStatus of CacheDb and do cleanup if necessary

     */

    void CheckStatusL();

    /**

     * @see CTimer::RunL().

     */

    void RunL();

    /**

     * GetCleanupInterval().

     *gets the cleanup routine call interval based on the current cache size.

     *formula derivation:

	 *Timeinterval of cleanup (T) is inversely proportional to the cache size(S)

	 *Minimum time interval for cleanup routine 2 min.

	 *Maximum time interval for cleanup routine ~35mins.

	 *timeintervalperbyte = (35-2)*60*1000000/1024*1024

	 *TimeInterval = timeintervalperbyte*(MaxCacheLimit-CurrentCachesize)

     */

     TUint32 GetCleanupInterval();

	private:

    /** The cache database. */

    CIRCacheMgmt& iDatabase;

	};