/*

* Copyright (c) 2005-2009 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: MPM class used for ConnMon requests

*

*/

/**

@file mpmconnmonreqs.h

MPM class used for ConnMon requests.

*/

#ifndef MPMCONNMONREQS_H

#define MPMCONNMONREQS_H

//  INCLUDES

#include <e32base.h>

#include <rconnmon.h>

#include "mpmconnmonevents.h"

// CLASS DECLARATION

/**

*  MPM class definition for ConnMon requests.

*

*  @lib MPMServer.exe

*  @since 3.1

*/

class CMPMConnMonReqs : public CActive

    {

    public:    // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CMPMConnMonReqs* NewL( CMPMConnMonEvents& aParent,

                                      RConnectionMonitor& aConnMon,

                                      TUint aConnId,

                                      CMPMServerSession& aSession );

        /**

        * Destructor.

        */

        virtual ~CMPMConnMonReqs();

    public: // New functions

        /**

        * Starts IapAvailability request towards Connection monitor. 

        * Calls active sceduler wait to wait until the request completes.

        * This is used when first session is starting and MPMServer registers 

        * to ConnMonitor services. In this case the information 

        * will not be accurate, unless the session creation waits for the 

        * first update from ConnMon. 

        *

        * If registering to ConnMon is moved to MPMServer start, 

        * remove this function.

        *

        * @since 3.1

        */

        void AvailableIapsSync();

        /**

        * Requests available IAPs from Connection monitor.

        * This also includes scanning available WLAN networks.

        * @param aCallback Type of callback to use after completing 

        * @param aForceRefreshIntervalSeconds

        * @since 3.2

        */

        void RefreshAvailableIAPs( TWlanScanCallback aCallback, TInt aForceRefreshIntervalSeconds );

        /**

        * Compare request object connection ids

        * @since 3.1

        * @param aReq1

        * @param aReq2

        * @return ETrue if ids are equal, otherwise EFalse

        */

        static TBool CompareConnIds( const CMPMConnMonReqs& aReq1,

                                     const CMPMConnMonReqs& aReq2 );

        /**

        * Marks the request as obsolete but allows it run to its completion

        * @since 3.2

        */

        void MyCancel();

    private:

        /**

        * Completes the error case and handles cancellation.

        * @since 3.2

        */

        void ErrorCallbackL( TInt aStatus );

    public: // Functions from base classes

        /**

        * From CActive. Cancels request.

        * @since 3.1

        */

        void DoCancel();

        /**

        * From CActive. Run when request completes.

        * @since 3.1

        */

        void RunL();

        /**

        * From CActive. Run if RunL leaves.

        * @since 3.1

        * @param aError Error that caused leave.

        * @return KErrNone

        */

        TInt RunError( TInt aError );

    private: // New methods

        /**

        * C++ default constructor.

        */

        CMPMConnMonReqs( CMPMConnMonEvents&  aParent,

                         RConnectionMonitor& aConnMon,

                         TUint aConnId, 

                         CMPMServerSession&  aSession );

        /**

        * 2nd phase constructor.

        */

        void ConstructL();

    private: // Data

        // Internal states types for this object

        enum TRequestState

            {

            EGetIapAvailState, 

            EScanWLANNetworksState,

            EScanWLANNetworksStateCached,

            EGetConnectionCountState, 

            EObsolete

            };

        // Internal state

        TRequestState iNextState;

        // ConnMon request cancel code

        TInt iLastCancelCode;

        // Parent object reference

        CMPMConnMonEvents& iParent;

        // Reference to the Connection Monitor If

        RConnectionMonitor& iConnMon;

        // Connection identifier

        TUint iConnId;

        // Iap availability info buffer

        TConnMonIapInfoBuf iIapBuf;

        // MPM server session which requested the service

        // After service completes callback function is called through 

        // the reference.

        CMPMServerSession& iSession;

        // Used for first session start to wait until necessary data available

        CActiveSchedulerWait iActiveSchedulerWait;        

        // Callback type to be used when WLAN scan has been completed

        TWlanScanCallback iWlanScanCallback;

        // Keeps track of the number of connections

        TUint iConnectionCount; 

    };

#endif // MPMCONNMONREQS_H

// End of file