diff -r 000000000000 -r dfb7c4ff071f datacommsserver/esockserver/ssock/ss_datatransfer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/datacommsserver/esockserver/ssock/ss_datatransfer.cpp	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,125 @@
+// 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:
+//
+
+/**
+ @file SS_DATATRANSFER.CPP
+*/
+
+#include "ss_datatransfer.h"
+
+
+#ifdef _DEBUG
+// Panic category for "absolutely impossible!" vanilla ASSERT()-type panics from this module
+// (if it could happen through user error then you should give it an explicit, documented, category + code)
+_LIT(KSpecAssert_ESockSSocksdtrns, "ESockSSocksdtrns");
+#endif
+
+/**
+ Constructor
+ */
+EXPORT_C CConnDataTransfer::CConnDataTransfer()
+	{
+	}
+
+/**
+ Calculate out how much data has been sent and received on the sub-connection
+ 
+ @param aUplinkVolume On return, contains the amount of data sent on this subconnection
+ @param aDownlinkVolume On return, contains the amount of data received on this subconnection
+ @return KErrNone if successful, otherwise one of the system-wide error codes
+ */	
+EXPORT_C TInt CConnDataTransfer::DataTransferred(TUint& aUplinkVolume, TUint& aDownlinkVolume)
+	{
+	return DoDataTransferred( aUplinkVolume, aDownlinkVolume);
+	}
+	
+/**
+ Cancel a request for data transfer information
+ 
+ @return ETrue to indicate that the operation is completed here
+ */	
+EXPORT_C TInt CConnDataTransfer::DataTransferredCancel()
+	{
+	return DoDataTransferredCancel();
+	}
+
+/**
+ Receive a request for a notification after a given volume of data has been sent on the sub-connection
+ 
+ @param aRequestedGranularity The amount of data to be sent after which the notification will occur (but see notes); 
+ this is relative to the current volume of data sent
+ @param aRequestedNotificationVolume The absolute amount of data that should be sent before we send a notification; only used if aRequestedGranularity is zero
+ @return KErrNone, or one of the system-wide error codes
+ */	
+EXPORT_C TInt CConnDataTransfer::DataSentNotificationRequest(TUint aRequestedGranularity, TUint aRequestedNotificationVolume)
+	{
+	return DoDataSentNotificationRequest(aRequestedGranularity, aRequestedNotificationVolume);
+	}
+
+/**
+ Remove the additional notification that this request would have generated
+ 
+ @return KErrNone, or one of the system-wide error codes
+ */	
+EXPORT_C TInt CConnDataTransfer::DataSentNotificationCancel()
+	{
+	return DoDataSentNotificationCancel();
+	}
+
+/**
+ Receive a request for a notification after a given volume of data has been received on the sub-connection
+ 
+ @param aRequestedGranularity The amount of data to be received after which the notification will occur (but see notes); this is relative to the current volume of data received
+ @param aRequestedNotificationVolume The absolute amount of data that should be received before we send a notification; only used if aRequestedGranularity is zero
+ @return KErrNone, or one of the system-wide error codes
+ */
+EXPORT_C TInt CConnDataTransfer::DataReceivedNotificationRequest(TUint aRequestedGranularity, TUint aRequestedNotificationVolume)
+	{
+	return DoDataReceivedNotificationRequest(aRequestedGranularity, aRequestedNotificationVolume);
+	}
+	
+/**
+ Remove the additional notification that this request would have generated
+ 
+ @return KErrNone, or one of the system-wide error codes
+ */	
+EXPORT_C TInt CConnDataTransfer::DataReceivedNotificationCancel()
+	{
+	return DoDataReceivedNotificationCancel();
+	}
+
+/**
+ Register a client
+ @param aClient Reference to the MConnDataTransferNotify derived class as the client
+ */	
+EXPORT_C void CConnDataTransfer::RegisterClientL( MConnDataTransferNotify& aClient )
+	{
+	__ASSERT_DEBUG(iClients.Find(&aClient) == KErrNotFound, User::Panic(KSpecAssert_ESockSSocksdtrns, 1));
+	iClients.AppendL(&aClient);
+	}
+
+/**
+ De-register a client
+ @param aClient Reference to the MConnDataTransferNotify derived class as the client
+ */	
+EXPORT_C void CConnDataTransfer::DeRegisterClient( MConnDataTransferNotify& aClient )
+	{
+	TInt index = iClients.Find(&aClient);
+	if ( index >= 0 )
+		{
+		iClients.Remove(index);
+		}
+	}
+