--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/MPEngNWSessionOperationObserver2.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,121 @@
+/*
+* Copyright (c) 2004 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:  Observer interface to listen NWSessionSlot operation events.
+*
+*/
+
+#ifndef __MPENGNWSESSIONOPERATIONOBSERVER2_H
+#define __MPENGNWSESSIONOPERATIONOBSERVER2_H
+
+//  INCLUDES
+#include <E32Std.h>
+
+// FORWARD DECLARATIONS
+class CPEngNWSessionSlot2;
+class MPEngTransactionStatus2;
+
+
+
+
+// CLASS DECLARATION
+/**
+ * Observer interface to receive NWSessionSlot
+ * operation completion events.
+ *
+ * @since 3.0
+ */
+class MPEngNWSessionOperationObserver2
+    {
+    public: //Observer methods
+
+        /**
+         * Operation complete handler.
+         *
+         * Called by CPEngNWSessionSlot2 to handle NWSessionSlot
+         * operation complete. If this method leaves, error code is
+         * reported back to HandleNWSessionOperationNotifyError().
+         *
+         * @since 3.0
+         * @param aStatus Transaction status container holding result from
+         *        operation. Container ownership remains on the NWSessionSlot object.
+         * @param aNWSessionSlot The NWSessionSlot object where notification
+         *        is coming from. No ownership transferred.
+         * @param aNWSessionSlotOperation ID of the completed NWSessionSlot
+         *        operation. Operation IDs are listed in
+         *        PEngPresenceEngineConsts2.h TPEngNWSessionSlotOperations
+         *        enumeration. Client can use operation ID to figure
+         *        out what operation completed.
+         */
+        virtual void HandleNWSessionOperationCompleteL(
+            MPEngTransactionStatus2& aStatus,
+            CPEngNWSessionSlot2& aNWSessionSlot,
+            TInt aNWSessionSlotOperation ) = 0;
+
+
+        /**
+         * Failure handler.
+         *
+         * Called to handle leave errors from
+         * HandleNWSessionOperationCompleteL().
+         *
+         * @since 3.0
+         * @param aError The leave error from operation complete handling.
+         * @param aNWSessionSlot The NWSessionSlot object which event
+         *        handling failed.
+         * @param aNWSessionSlotOperation ID of the completed NWSessionSlot
+         *        operation. Operation IDs are listed in
+         *        PEngPresenceEngineConsts2.h TPEngNWSessionSlotOperations
+         *        enumeration. Client can use operation ID to figure
+         *        out what operation completed.
+         */
+        virtual void HandleNWSessionOperationNotifyError(
+            TInt aError,
+            CPEngNWSessionSlot2& aNWSessionSlot,
+            TInt aNWSessionSlotOperation ) = 0;
+
+
+
+    private: //Extensions
+
+        /**
+         * Reserved virtual table slots for future use.
+         * Do not implement these.
+         *
+         * @since 3.0
+         */
+        virtual TInt NWSessionOperationReserved() {
+            return KErrNotSupported;
+            }
+
+
+
+
+    protected:  //Destructor
+
+        /**
+         * Protected destructor.
+         * Observers can't be destroyed via this interface.
+         */
+        virtual ~MPEngNWSessionOperationObserver2() { }
+
+    };
+
+
+
+#endif //__MPENGNWSESSIONOPERATIONOBSERVER2_H
+
+
+
+//End of file
+