/*

* Copyright (c) 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:  active object, that monitors IKE plugin session error

*

*/

#ifndef C_ERROROBSERVER_H

#define C_ERROROBSERVER_H

#include <e32base.h>

// FORWARD DECLARATIONS

class MIkeDebug;

class MIkePluginSessionIf;

class MIkePluginSessionHandlerCallback;

/**

 *  Error observer.

 *  Active object that provides functionality for observing IKE plugin session

 *  error.

 *

 *  @lib internal (kmdserver.exe)

  */

class CErrorObserver : public CActive

    {

public:

    /**

     * Two-phased constructor.

     * @param aIkePluginSession IKE plugin session

     * @param aCallback Callback interface

     * @param aDebug Debug trace interface

     */

    static CErrorObserver* NewL( MIkePluginSessionIf& aIkePluginSession,

                                 MIkePluginSessionHandlerCallback& aCallback,

                                 MIkeDebug& aDebug );

    /**

     * Destructor.

     */

    ~CErrorObserver();

    /**

     * Starts observing internal address change.

     */

    void StartObserving();

private:

    CErrorObserver( MIkePluginSessionIf& aIkePluginSession,

                    MIkePluginSessionHandlerCallback& aCallback,

                    MIkeDebug& aDebug );

    void ConstructL();

// from base class CActive

    /**

     * From CActive

     * Handles completion of asynchronous notification request.

     */    

    void RunL();

    /**

     * From CActive

     * Handles cancellation of asynchronous notification request.

     */    

    void DoCancel();

private: // data

    /**

     * IKE plugin session.

     * Not own.

     */

    MIkePluginSessionIf&        iIkePluginSession;

    /**

     * Callback interface.

     * Not own.

     */

    MIkePluginSessionHandlerCallback&     iCallback;

    /**

     * Debug trace interface.

     * Not own.

     */

    MIkeDebug&                  iDebug;            

    };

#endif // C_ERROROBSERVER_H