/*

* 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:  Active object which ensures that current call stack is run to

*                completion before a new request is handled

*

*/

#ifndef CLPDREQUESTAO_H

#define CLPDREQUESTAO_H

//  INCLUDES

#include <e32base.h>

#include <lbs/epos_privacy.h>

#include "lpdnotifreqinfo.h"

// FORWARD DECLARATIONS

class CLpdVerifierPlugin;

class RPosRequestorStack;

// CLASS DECLARATION

/**

*  Active object used by the verifier plugin. 

*  Ensures that current call stack is run to completion before a 

*  new request is handled. Otherwise access violations might occur.

*

*  @lib locverifierdlg.lib

*  @since 2.1

*/

class CLpdRequestAO : public CActive

    {    

	public: // Constructors and destructors        

        /**

        * Two-phased constructor.

        * @param aPlugin reference to the owner of this object

        * @return created object

        */

	    static CLpdRequestAO* NewL( CLpdVerifierPlugin& aPlugin );        

        /**

        * Destructor.

        */

	    virtual ~CLpdRequestAO();

    public: // New functions

        /**

        * Issues a request and completes it immediatelly, so that it

        * will be handled as soon as previous request is run to completion.

        */

        void ScheduleRequest();

        /**

        * To Queue up further verification cancel requests when a notification

        * request is currently running.

        */

		void EnqueueRequestL( TPosRequestSource aSource,

						     TPosVerifyCancelReason aReason,

			 			     TPosRequestDecision aDecision,

			 			     RPosRequestorStack* aRequestors );

    private:

	    /**

        * Private C++ default constructor.

        * @param aPlugin reference to the owner of this object

        */

		CLpdRequestAO( CLpdVerifierPlugin& aPlugin ); 	    

    private: // Functions from base classes

        /**

        * From CActive.

        */

        void RunL();

        /**

        * From CActive.

        */

        void DoCancel();

    private: // Data

        // Verifier plugin

        CLpdVerifierPlugin& iPlugin; // doesn't own     

		// Queue of Notification Request with all the necesary information.        

        RPointerArray<CLpdNotifReqInfo> iNotificationQue;

};

#endif      // CLPDREQUESTAO_H

// End of File