/*

* Copyright (c) 2007 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: 

*

*/

#ifndef CUDPCRLFSENDER_H

#define CUDPCRLFSENDER_H

//  INCLUDES

#include "ccrlfsender.h"

#include "nattraversalsocketuser.h"

// FORWARD DECLARATIONS

class MNATTraversalSocketManager;

// CLASS DECLARATION

/**

* A class for sending CRLF bursts to network using UDP socket.

*/

class CUdpCRLFSender :

    public CCRLFSender,

    public MNATTraversalSocketUser

    {

    public:    // Constructors and destructor

        CUdpCRLFSender(

            RSocket& aSocket,

            const TInetAddr& aAddr,

            MNATBindingRefresherObserver& aObserver,

            MNATTraversalSocketManager& aSocketManager );

        ~CUdpCRLFSender();

    public: // From CCRLFSender

        TBool PersistentConnectionRequired() const;

        TBool HasSocket( const RSocket& aSocket ) const;

    public: // From MNATTraversalSocketUser

        const RSocket& Socket() const;

        void SendingAllowed();

        TBool IsSending() const;

        void CancelSending();

    protected: // From CActive

        void DoCancel();

    protected: // From CCRLFSender

        void Send( const TDesC8& aData );

        TBool ReadyToSend();

        void SendingCompleted();

    private: // Data

        RSocket& iSocket;

        TInetAddr iAddr;

        MNATTraversalSocketManager& iSocketManager;

        TBool iAllowedToSend;

    };

#endif // CUDPCRLFSENDER_H

// End of File