--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/networkcontrol/iptransportlayer/inc/tcpdfltrecvwin.h	Tue Jan 26 15:23:49 2010 +0200
@@ -0,0 +1,102 @@
+// Copyright (c) 2008-2009 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:
+// NetMcpr's Default implementation of the TCP receive window interface.
+// Licensee should do their own implementation for tweaking the
+// TCP receive window.
+// 
+//
+
+/**
+ @file tcpdfltrecvwin.h
+ @internalComponent
+*/
+
+#ifndef SYMBIAN_IPEXTENSION_H
+#define SYMBIAN_IPEXTENSION_H
+
+#include <tcprecvwin.h>
+#include <networking/cfbearers.h>
+#include <e32hashtab.h> 
+
+/**
+ *  TCP receive window for GPRS. 
+ */
+const TUint KBearerGprsWinSize	= 17520;
+
+/**
+ *  TCP receive window for EGPRS. 
+ */
+const TUint KBearerEdgeWinSize	= 49640;
+
+/**
+ *  TCP receive window for UMTS. 
+ */
+const TUint KBearerUmtsWinSize	= 33580;
+
+/**
+ *  TCP receive window for HSDPA. 
+ */
+
+const TUint KBearerHsdpaWinSize	= 65533;
+
+/**
+ *  TCP receive window for WLAN. 
+ */
+const TUint KBearerWlanWinSize	= 65534;
+
+/**
+ *  TCP receive window for ethernet. 
+ */
+const TUint KBearerEthernetWinSize	= 65535;
+
+/**
+ * Maximum TCP receive window for ethernet.
+ */
+const TUint KEthernetMaxWinSize	= 131070;
+
+/**
+ * Default TCP receive window implementation. 
+ * 
+ */
+class CDfltTCPReceiveWindowSize : public CTCPReceiveWindowSize
+{
+public:
+	enum
+	{
+		ERealmId= 0x102070ED,
+		iId = 10,
+	};
+	
+public:
+	//Default constructor 
+	CDfltTCPReceiveWindowSize();
+    
+    //Destructor
+    ~CDfltTCPReceiveWindowSize();
+
+	//Populates TCP window lookup table for different bearers
+	void Init();
+	
+	//Set TCP window size
+	void SetTcpWin(TUint aBearerType);
+	
+	//Set max TCP receive window for a network bearer
+	void  SetMaxWinSize(TUint aBearerType) ;
+		
+private:
+   	//Associative array for storing TCP window size.
+   	RHashMap<TUint,TUint> iBearerInfoMap;  	 
+ };
+
+#endif //SYMBIAN_IPEXTENSION_H