/*
* Copyright (c) 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: UDP protocol implementation for IP proxy
*
*/
#ifndef CPROTOCOLUDP_H
#define CPROTOCOLUDP_H
// INCLUDES
#include "MBPProtocol.h"
#include "MBPExpression.h"
#include "MExpressionObserverUDP.h"
#include <e32base.h>
// FORWARD DECLARATIONS
class MProtocolObserverUDP;
class MSocketWriter;
// CLASS DECLARATION
/**
* UDP protocol implementation. Writes and interpretes data in
* protocol frame.
*/
NONSHARABLE_CLASS( CProtocolUDP ) : public CBase, public MBPProtocol,
public MExpressionObserver
{
public: // Constructors and destructor
/**
* Factory function.
* @param aObserver Pointer to observer.
* @return New CProtocol instance.
*/
static CProtocolUDP* NewL( MProtocolObserverUDP* aObserver );
/**
* Factory function.
* @param aObserver Pointer to observer.
* @return New CProtocol instance.
*/
static CProtocolUDP* NewLC( MProtocolObserverUDP* aObserver );
/**
* Destructor.
*/
~CProtocolUDP();
public: // From MExpressionObserverUDP
void FrameStarted();
void FrameParsedL( TUint aPort, const TDesC8& aData );
void ProtocolErrorL( TInt aErrorCode, const TDesC8& aReceivedData );
public: // From MBPProtocol
void WriteFrameL( MSocketWriter& aSocketWriter,
TUint aPeerPort, TUint aOriginalPort, const TDesC8& aData ) const;
TBool HandleReceivedDataL( TDes8& aData, TInt& aStartPos, TInt& aLength );
protected:
/**
* Default constructor.
* @param aObserver Pointer to observer.
*/
CProtocolUDP( MProtocolObserverUDP* aObserver );
/**
* 2nd phase constructor.
*/
void ConstructL();
private: // Owned data
CArrayPtr<MBPExpression>* iExpressionArray;
private: // Not owned data
MProtocolObserverUDP* iObserver;
};
#endif // CPROTOCOLUDP_H
// End of File