diff -r 000000000000 -r bde4ae8d615e os/persistentdata/loggingservices/eventlogger/LogServ/inc/LogServBackupInterface.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/persistentdata/loggingservices/eventlogger/LogServ/inc/LogServBackupInterface.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,84 @@
+// Copyright (c) 2002-2009 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:
+//
+
+#ifndef __LOGSERVBACKUPINTERFACE_H__
+#define __LOGSERVBACKUPINTERFACE_H__
+
+#include <e32std.h>
+
+// Classes referenced
+class MLogServBackupObserver;
+
+/**
+Typedefs
+@internalComponent
+*/
+typedef TInt TLogServBackupPriority;
+
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// -----> MLogServBackupInterface (header)
+/////////////////////////////////////////////////////////////////////////////////////////
+/**
+@internalComponent
+*/
+class MLogServBackupInterface
+	{
+public:
+	enum TLogServBackupState
+		{
+		ELogServBackupStateIdle = 0,
+		ELogServBackupStateBackupInProgress
+		};
+
+	enum TLogBackupStandardNotificationPriorities
+		{
+		// The first object that will be told a backup is starting (and the last
+		// to be told that a backup has ended).
+		ELogBackupPriorityFirstToBeNotified = 1000,
+
+		// The last object to be told that a backup is starting (but the first
+		// to be told that it has ended).
+		ELogBackupPriorityLastToBeNotified = -1000,
+
+		// Individual object priorities. Not terribly nice really...
+		EObjectDatabaseDriver = ELogBackupPriorityFirstToBeNotified,
+		EObjectViewLock = EObjectDatabaseDriver - 1,
+		EObjectView = EObjectViewLock - 1,
+		EObjectClientChangeNotifications = EObjectView - 1,
+		EObjectChangeTracker = EObjectClientChangeNotifications -1,
+
+		// Must be last, since it must close the database after everything
+		// has stopped using it.
+		EObjectDatabaseMarshall = ELogBackupPriorityLastToBeNotified,
+
+		};
+
+public: // Observer interaction
+	virtual void BIObserverAddL(MLogServBackupObserver& aObserver, TLogServBackupPriority aPriority) = 0;
+	virtual void BIObserverRemove(MLogServBackupObserver& aObserver) = 0;
+
+public: // Enquiry interface
+	virtual TLogServBackupState BIState() const = 0;
+	virtual TInt BIErrorValueForCurrentState() const = 0;
+	void BIValidateStateForDatabaseOperationL();
+
+public: // Misc
+	virtual void BISetDatabaseNameL(const TDesC& aDatabaseName) = 0;
+	};
+
+
+#endif
+