realtimenetprots/sipfw/SIP/ConnectionMgr/src/TTCPMsgInit.cpp
changeset 0 307788aac0a8
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SIP/ConnectionMgr/src/TTCPMsgInit.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,64 @@
+// 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 );
+			}
+		}
+	}