--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ximpfw/core/srcutils/ximpsrvsession.h	Thu Dec 17 08:54:49 2009 +0200
@@ -0,0 +1,71 @@
+/*
+* Copyright (c) 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:  Abstract server session interface
+ *
+*/
+
+#ifndef MXIMPSRVSESSION_H
+#define MXIMPSRVSESSION_H
+
+#include <e32std.h>
+
+class MXIMPSrvMessage;
+
+
+/**
+ * Abstract server session interface
+ */
+class MXIMPSrvSession
+    {
+public:
+
+    /**
+     * Public destructor.
+     * Objects can be deleted through this interface.
+     */
+    virtual ~MXIMPSrvSession() { };
+
+
+    /**
+     * Message handling method.
+     * Session adapters call this to mediate message handling
+     * to concrete session objects.
+     *
+     * Rules for message handling:
+     *
+     * - If message is handled synchronously, handler must complete
+     * the message when finished with it. Handler may not cause leave
+     * exeptions after completing.
+     *
+     * - If message handling fails, it should be handled with a leave.
+     * In this case Session::ServiceError() methods take care
+     * of completing the message with leave code.
+     *
+     * - If handler wishes to complete the message asynchronously,
+     * it must take message ownership to itself by using
+     * MXIMPSrvMessage::PlaceOwnershipHere(). In this case handler
+     * is responsible both to completing and deleting the message object.
+     * After taking message ownership, message handler isn't anymore
+     * allowed to cause leave exeptions during the same message
+     * handling path.
+     *
+     * @param aMessage The message to handle.
+     */
+    virtual void TryHandleMessageL( MXIMPSrvMessage& aMessage ) = 0;
+    };
+
+
+#endif      //  MXIMPSRVSESSION_H
+
+