/*

* Copyright (c) 2002 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:  

*     CMsgErrorDiskSpaceObserver declaration file

*

*/

#ifndef MSGERRORDISKSPACEOBSERVER_H

#define MSGERRORDISKSPACEOBSERVER_H

//  INCLUDES

#include <e32base.h>

#include <f32file.h>

// FORWARD DECLARATIONS

class CMsgErrorWatcher;

class CMsvSession;

// CLASS DECLARATION

/**

* CMsgErrorDiskSpaceObserver

*

* @lib msgerrorwatcher.dll

* @since 2.0

*/

class CMsgErrorDiskSpaceObserver : public CActive

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        *

        * @param aWatcher A pointer to CMsgErrorWatcher

        * @param aSession A reference to message server session

        * @param aFs A reference to file session

        */

        static CMsgErrorDiskSpaceObserver* NewL( CMsgErrorWatcher* aWatcher, CMsvSession& aSession, RFs& aFs );

        /**

        * Destructor.

        */

        virtual ~CMsgErrorDiskSpaceObserver();

    public: // New functions

        /**

        * Updates the trigger limit to aLimit, if it

        * is smaller than current limit. (Re)activates

        * the active object.

        *

        * @param aLimit The trigger limit in bytes

        */

        void SetLimitAndActivateL( TInt32 aLimit );

    private:

        /**

        * Private C++ constructor.

        *

        * @param aWatcher A pointer to CMsgErrorWatcher

        * @param aSession A reference to message server session

        * @param aFs A reference to file session

        */

        CMsgErrorDiskSpaceObserver( CMsgErrorWatcher* aWatcher, CMsvSession& aSession, RFs& aFs );

    private:

        /**

        * From CActive

        */

        void RunL();

        /**

        * From CActive

        */

        void DoCancel();

    private:    // Data

        CMsgErrorWatcher*   iWatcher;

        CMsvSession&        iSession;

        RFs&                iFs;

        TInt32              iLimit;

    };

#endif      // MSGERRORDISKSPACEOBSERVER_H

// End of File