voipplugins/dhcppositionprovider/inc/dhcpwlanqueryhandler.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 19 Aug 2010 09:45:22 +0300
branchRCL_3
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Revision: 201031 Kit: 201033
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/*
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#ifndef DHCPWLANQUERYHANDLER_H
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#define DHCPWLANQUERYHANDLER_H
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#include <e32base.h>
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#include <es_sock.h>
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#include <in_sock.h>
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#include "dhcppsyrequesterprogressobserver.h"
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#include "dhcpconstants.h"
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class CDhcpPsySocketListener;
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class CDhcpDataRequestor;
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class CDhcpConnectionEngine;
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class CDhcpPsyDhcpServerIPResolver;
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/**
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*  Class for handling the DHCP Messages sending and receiving.
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*
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*  @lib dhcppositionprovider
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*  @since S60 3.2
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*/
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class CDhcpWlanQueryHandler : public CActive
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    {
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    public:
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        /**
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         * Two-phased statical constructor which can leave
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         *
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         * @since S60 3.2
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         */
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        static CDhcpWlanQueryHandler* NewL(MDhcpPsyRequesterProgressObserver *aObserver);
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        /**
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         * C++ destructor
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         *
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         * @since S60 3.2
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         */
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        virtual ~CDhcpWlanQueryHandler();
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    public:
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        /**
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         * Make DHCP location query to WLAN network
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         * @param aIAPProfileId     Id to used IAP profile
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         *
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         */
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        void MakeLocationQueryL (TUint32 aIAPProfileId );
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        /**
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        * Return location data for requestor.
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         *
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         * @returns   Address to location data object
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         */
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        HBufC8* LocationData ();
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    protected:  // From CActive
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        /**
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        * Handles an active object's request completion event.
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        */
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        void RunL();
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        /**
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        * Cancellation of an outstanding request.
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        */
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        void DoCancel();
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        /**
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        * Handles a leave occurring in the RunL()
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        */
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        TInt RunError( TInt aErr );
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    private:
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        /**
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         * C++ constructor
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         *
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         * @since S60 3.2
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         */
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        CDhcpWlanQueryHandler(MDhcpPsyRequesterProgressObserver *aObserver);
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        /**
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         * Symbian Os construtor which can leave
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         *
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         * @since S60 3.2
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         */
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        void ConstructL();
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        /**
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         * Release location based reserved resources
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         *
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         * @since S60 3.2
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         */
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        void Flush ();
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    private:
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        enum TDhcpWLanQueryStates
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            {
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            EDhpWlanIdle,
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            EAttachToConnection,
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            EDhcpIpAddressQuery,
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            ESendDhcpLocatinQuery,
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            EReceiveDhcpLocationAck,
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            EWlanMakeQueryToConnectionIoctl,
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            EStopExecution
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            };
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    private: // data
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        // Address of psy progress observer object.
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        MDhcpPsyRequesterProgressObserver *iPsyProgressObserver;
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        /**
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        * Socket server
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        */
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        RSocketServ iSocketServer;
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        /**
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        * Connection
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        */
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        RConnection iConnection;
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        /**
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        * Sockets
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        */
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        RSocket iSocket;
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        //
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        TDhcpWLanQueryStates iState;
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        //
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        CDhcpDataRequestor* iLctnDataRequestor;
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        //
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        CDhcpPsySocketListener* iLctnDataListener;
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        //
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        CDhcpPsyDhcpServerIPResolver* iDhcpResolver;
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        //
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        CDhcpConnectionEngine*    iConnectionEngine;
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        // Owned
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        HBufC8*     iLocationBufferData;
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        //
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        TInetAddr   iInetLclIpAddress;
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        // Used IAP
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        TUint32 iIapProfileId;
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    };
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#endif // DHCPWLANQUERYHANDLER_H
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