--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/multimediacommscontroller/mmccmsrpsourcesink/inc/mccmsrpdataobserver.h	Mon Sep 06 17:32:13 2010 +0530
@@ -0,0 +1,74 @@
+/*
+* Copyright (c) 2004-2006 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:    Provides a comfort noise generator class
+*
+*/
+
+
+#ifndef MCCMSRPDATAOBSERVER_H
+#define MCCMSRPDATAOBSERVER_H
+
+#include <e32base.h>
+
+/**
+*  callback function for received msrp packets. 
+*
+*  @lib mccmsrpsourcesink.dll
+*/
+class MMsrpDataObserver
+{
+public :
+
+        /**
+         * A MSRP message has been received from the network.
+         * This function is called when the MSRP message was received from the network
+         * the ownership is transferred
+         * @param aMessage the received message
+         * @param aStatus, KErrNone with complete message, KErrCancel if terminated
+         */
+        virtual void IncomingMessage( HBufC8* aMessageContent, TInt aStatus ) = 0;
+
+        /**
+         * A MSRP REPORT message has been received from the network
+         * This function is called to indicate to the client that a recipient
+         * wishes to indicate a range of bytes as received. Alternative the
+         * recipient might use REPORT to indicate an error. In case of error the
+         * MSRP stops sending the message. However, it is client's responsibility
+         * how the handle the information
+         * @param aStatus status code from the REPORT message
+         * @param aRangeStart start of byte range received
+         * @param aRangeEnd end of byte range received
+         * @param aTotal Total number of bytes in the message
+         */
+        virtual void IncomingReport( TInt aStatus, TInt aRangeStart,
+            TInt aRangeEnd, TInt aTotal ) = 0;
+
+        /**
+         * The SendMessage status of the message sending
+         * The possible status code are defined by CMSRPConnection::TMSRPErrorCodes
+         * or system wide error codes
+         * @param aStatus status of the operation
+         * @param aMessageId message identifier of the sent message
+         */
+        virtual void SendResult( TInt aStatus, const TDesC8& aMessageid ) = 0;
+
+        /**
+         * If listen port request fails this is called
+         * @param aStatus error code of the operation
+         */
+        virtual void ListenPortFailure( TInt aStatus ) = 0;
+
+};
+
+#endif //MCCMSRPDATAOBSERVER.H