natplugins/natpnatfwsdpprovider/inc/nspstatenegotiating.h
author hgs
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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:  Negotiating state description.
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*
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*/
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#ifndef NSPSTATENEGOTIATING_H
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#define NSPSTATENEGOTIATING_H
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#include "nspstatebase.h"
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/**
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 *  State where second round of Sdp O/A is interpret.
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 *
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 *  Response to initial O/A is interpred here, and Ice specific utilities 
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 *  are applied. Also remote candidates are extracted from remote Sdp, 
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 *  for later use.(next state)
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 *
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 *  @lib natfwsdpprovider.dll
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 *  @since S60 3.2
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 */
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class CNSPStateNegotiating : public CNSPStateBase
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    {
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public: // Constructors and destructor
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    /**
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     * A two-phase constructor.
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     */
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    static CNSPStateNegotiating* NewL();
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    /**
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     * A two-phase constructor.
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     */
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    static CNSPStateNegotiating* NewLC();
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    /**
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     * Destructor.
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     */
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    virtual ~CNSPStateNegotiating();
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private: // Constructors and destructor
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    CNSPStateNegotiating();
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protected: // From CNSPStateBase
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    /**
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     * Called to check if individual state accepts event, i.e.
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     * whether to execute DoApplyL.
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     *
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     * @since       S60 3.2
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     * @param       aEvent          State machine event.
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     * @return      ETrue if event is accepted, EFalse otherwise.
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     */
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    TBool DoAcceptL( TNSPStateMachineEvent& aEvent );
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    /**
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     * Called when the state is entered.
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     * 
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     * @since       S60 3.2
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     * @param       aEvent          State machine event.
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     */
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    void DoStateEntryL( TNSPStateMachineEvent& aEvent );
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    /**
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     * Called when state entry to next state will leave, and return
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     * into 'this' state must be done.
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     * 
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     * @since       S60 3.2
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     * @param       aEvent          State machine event.
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     */
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    void DoReverse( TNSPStateMachineEvent& aEvent );
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    /**
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     * Current state is applied with this method.
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     * 
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     * @since       S60 3.2
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     * @param       aEvent          State machine event.
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     */
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    void DoApplyL( TNSPStateMachineEvent& aEvent );
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    /**
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     * Current state is exited with this method.
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     * 
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     * @since       S60 3.2
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     * @param       aEvent          State machine event.
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     */
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    void DoExitL( TNSPStateMachineEvent& aEvent );
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private:
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	void ControlMediaL( TNSPStateMachineEvent& aEvent ) const;
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    void ApplyNatL( TNSPStateMachineEvent& aEvent ) const;
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    void ApplyDecodeAnswerL( TNSPStateMachineEvent& aEvent ) const;
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    };
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#endif // NSPSTATENEGOTIATING_H
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// end of file