--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SIP/ConnectionMgr/src/TTCPCompMsgStart.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,77 @@
+// 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        : TTCPCompMsgStart.cpp
+// Part of     : ConnectionMgr
+// Implementation
+// Version     : SIP/4.0
+//
+
+
+
+#include "TTCPCompMsgStart.h"
+#include "MMsgAssemblerContext.h"
+#include "MSigCompController.h"
+#include "SipAssert.h"
+
+
+// ----------------------------------------------------------------------------
+// TTCPCompMsgStart::DataReceivedL
+// ----------------------------------------------------------------------------
+//
+void TTCPCompMsgStart::DataReceivedL( TPtr8 aData, TUint&  aNextLength )
+	{
+	// panic if sigcomp is not supported in debug mode.leaves in release mode.
+	__SIP_ASSERT_LEAVE(	iMsgAssembler.SigComp().IsSupported(), KErrGeneral );
+	     
+	if ( iMsgAssembler.MsgBuffer().Size() > 0 )
+		{
+		// insert the received data to msg buffer.
+		iMsgAssembler.MsgBuffer().InsertL(
+									iMsgAssembler.MsgBuffer().Size(), aData );
+		iMsgAssembler.MsgBuffer().Compress();
+		// clean the content of received data.
+		aData.Delete( 0, aData.Length() );
+		TPtr8 bufPtr = iMsgAssembler.MsgBuffer().Ptr( 0 );
+		
+		// check if the msg buffer a complete sig comp message, if so
+		// copy the msg buffer to a new data buf, clean the msg buffer
+		// and enter to comp msg end state.
+		if ( iMsgAssembler.SigComp().IsCompleteSigCompMessageL( bufPtr ) )
+			{
+			HBufC8* newData = HBufC8::NewLC( bufPtr.Length() );
+			// copy the msg buffer data and the received data to new buffer
+			TPtr8 newDataPtr = newData->Des();
+			newDataPtr.Append(bufPtr);
+			// clean the msg buffer
+			iMsgAssembler.MsgBuffer().Reset();
+			iMsgAssembler.MsgBuffer().Compress();
+			
+			iMsgAssembler.ChangeState( MMsgAssemblerContext::ECompMsgEnd );
+			iMsgAssembler.CurrentState().DataReceivedL( newDataPtr, 
+			                                            aNextLength );
+	    	CleanupStack::PopAndDestroy(newData);
+			}
+		}
+	else if (iMsgAssembler.SigComp().IsCompleteSigCompMessageL( aData ) )
+		{
+		iMsgAssembler.ChangeState( MMsgAssemblerContext::ECompMsgEnd );
+		iMsgAssembler.CurrentState().DataReceivedL( aData, aNextLength );
+		}
+	else
+		{
+		iMsgAssembler.MsgBuffer().InsertL(
+									iMsgAssembler.MsgBuffer().Size(), aData );
+		iMsgAssembler.MsgBuffer().Compress();
+		}
+	}