/*

* Copyright (c) 2005 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:  Declaration of the CDirWatcher class

*

*/

#ifndef DIRWATCHER_H

#define DIRWATCHER_H

#include "watcherobserver.h"

/**  Prefix used when signaling the observer which directory has changed */

_LIT( KDirIdentifier, "RDB: " );

/**

 *  Watches a single directory

 *

 *  Uses change notifications on the RDB directories, restarts the device if

 *  unauthorized modifications have been detected

 *

 *  @since S60 3.0

 */

NONSHARABLE_CLASS( CDirWatcher ): public CActive

    {

public:

    static CDirWatcher* NewL( MWatcherObserver& aObserver, RFs& aFs, const TDesC& aDir );

    virtual ~CDirWatcher();

    /**

     * Start watching the database

     *

     * @since S60 3.0

     */

    void StartWatching();

protected:

// from base class CActive

    /**

     * From CActive.

     * Cancel outstanding requests

     *

     * @since S60 3.0

     */

    void DoCancel();

    /**

     * From CActive.

     * Handle events

     *

     * @since S60 3.0

     */

    void RunL();

private:

    CDirWatcher( MWatcherObserver& aObserver, RFs& aFs );

    void ConstructL( const TDesC& aDir );

private: // data

    RFs& iFs;

    TFileName iDir;

    MWatcherObserver& iObserver;

    };

#endif // DIRWATCHER_H