--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingappbase/mce/logenginc/MceLogNotify.h	Thu Dec 17 08:44:11 2009 +0200
@@ -0,0 +1,113 @@
+/*
+* Copyright (c) 2002 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:  
+*     Reqisters Mce to LogEng to get notification about log DB changes.
+*
+*/
+
+
+
+#ifndef __Mce_Engine_CMceLogNotify_H__
+#define __Mce_Engine_CMceLogNotify_H__
+
+//  INCLUDES
+
+#include <e32base.h>
+#include <f32file.h>
+
+// FORWARD DECLARATIONS
+
+class CLogClient;
+class CMceLogEngine;
+
+// CLASS DECLARATION
+
+/**
+ * Observer for the log database. Issues request to the underlying
+ * asyncronous service provider, which tells if changes in the DB
+ * had happened.
+ */
+class CMceLogNotify : public CActive
+
+    {
+    public:     // Constructors.
+        /**
+         * Standard creation function. Creates and returns a new object of this
+         * class.
+         *
+         * @param aObserver pointer to observer.
+         * @param aDelay notification delay in microseconds.
+         * @return  pointer to CMceLogNotify instance.
+         */
+        static CMceLogNotify* NewL( CMceLogEngine* aObserver,
+                                  TTimeIntervalMicroSeconds32 aDelay );
+
+        /**
+         *  Destructor.
+         */
+        ~CMceLogNotify();
+
+
+        /**
+         *  Issues request to asyncronous service provider
+         */
+        void IssueNotifyRequest();
+
+
+    private:    // Constructions.
+        /**
+         * Constructor, second phase.
+         */
+        void ConstructL();
+
+        /**
+         * Default Constructor
+         */
+        CMceLogNotify();
+
+        /**
+         * Constructor
+         *
+         * @param aObserver pointer to observer.
+         * @param aDelay notification delay in microseconds.
+         */
+        CMceLogNotify( CMceLogEngine* aObserver,
+                     TTimeIntervalMicroSeconds32 aDelay);
+
+    private:     // Operations from CActive
+        /**
+         * This is called when a request to a log engine is completed.
+         */
+        void RunL();
+
+        /**
+         * Cancels active request.
+         */
+        void DoCancel();
+
+    private: // data
+        /// Ref: Messaging Centre log engine.
+        CMceLogEngine* iObserver;
+        /// Own: File System session
+        RFs iFsSession;
+        /// Own: Pointer to the log client.
+        CLogClient* iLogClient;
+        /// Own: Notification delay in microseconds.
+        TTimeIntervalMicroSeconds32 iDelay;
+
+    };
+
+#endif // __Mce_Engine_CMceLogNotify_H__
+
+// End of file