// Copyright (c) 2004-2009 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:

// Name        : TTCPMsgInit.cpp

// Part of     : ConnectionMgr

// Implementation

// Version     : SIP/4.0

//

#include "TTCPMsgInit.h"

#include "MMsgAssemblerContext.h"

#include "MSigCompController.h"

// ----------------------------------------------------------------------------

// TTCPMsgInit::DataReceivedL

// ----------------------------------------------------------------------------

//

void TTCPMsgInit::DataReceivedL( TPtr8 aData, TUint&  aNextLength )

	{

	iMsgAssembler.SetUnConsumedBytes( 0 );

	// check first if the data received is compressed. 

	// if so, enter to state TTCPCompMsgStart state.

	if ( iMsgAssembler.SigComp().IsSupported() &&

	     iMsgAssembler.SigComp().IsSigCompMsg( aData ) )

		{

		iMsgAssembler.SetIsSigComp( ETrue );

		iMsgAssembler.ChangeState( MMsgAssemblerContext::ECompMsgStart );

		iMsgAssembler.CurrentState().DataReceivedL( aData , aNextLength );

		}

	else // received data is not compressed

		{

		iMsgAssembler.SetIsSigComp( EFalse );

		TInt startPos = FindHeaderStartPosition( aData );

		// if header not start from position 0

		// delete extra characters so that header start from pos 0.

		if ( startPos > 0 ) 

			{

			aData.Delete(0, startPos );

			}

		// if the header start position is found

		if ( startPos > KErrNotFound )

			{

			// enter into next state EMsgHeaderStart. 

			iMsgAssembler.ChangeState( MMsgAssemblerContext::EMsgHeaderStart );

			iMsgAssembler.CurrentState().DataReceivedL( aData , aNextLength );

			}

		}

	}