--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hti/HtiCommPlugins/HtiBtCommPlugin/BtEngine/inc/SocketObserver.h	Wed Oct 13 16:17:58 2010 +0300
@@ -0,0 +1,73 @@
+/*
+* Copyright (c) 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:  The error notification interface.
+*
+*/
+
+
+#ifndef __SOCKETOBSERVER_H__
+#define __SOCKETOBSERVER_H__
+
+// CLASS DECLARATION
+
+/**
+* MEngineNotifier.
+* This class specifies the error notification interface.
+*/
+class MSocketObserver
+    {
+    public: // Enumerations
+
+        /**
+        * TErrorType.
+        * Error types encountered when reading/writing to a sockets.
+        *  - EDisconnected.      A disconnected error has been encountered.
+        *  - ETimeOutOnWrite.    A write operation has failed to complete
+        *                        within a predetermined period.
+        *  - EGeneralReadError.  A general error has been encountered
+        *                        during a read.
+        *  - EGeneralWriteError. A general error has been encountered
+        *                        during a write
+        */
+        enum TErrorType
+            {
+            EDisconnected,
+            ETimeOutOnWrite,
+            EGeneralReadError,
+            EGeneralWriteError
+            };
+
+    public: // New functions
+
+        /**
+        * ReportError.
+        * Reports a communication error.
+        * @param aErrorType Error type.
+        * @param aErrorCode Associated error code.
+        */
+        virtual void ReportError( TErrorType aErrorType, TInt aErrorCode ) = 0;
+
+        /**
+        * NewData.
+        * Data has been received on the socket and read into a buffer.
+        * @param aData The data buffer.
+        */
+        virtual void NewData(const TDesC8& aData) = 0;
+
+        virtual void AllBufferedDataSent() = 0;
+    };
+
+#endif // __SOCKETOBSERVER_H__
+
+// End of File