diff -r 000000000000 -r ba25891c3a9e ncdengine/provider/server/inc/ncdoperationqueue.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/server/inc/ncdoperationqueue.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,59 @@
+/*
+* 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:   ?Description
+*
+*/
+	
+
+#ifndef M_NCDOPERATIONQUEUE_H
+#define M_NCDOPERATIONQUEUE_H
+
+class CNcdBaseOperation;
+
+/**
+ *  An interface for handling operations that must not run simultaneously.
+ *
+ *  This interface is used add an operation to queue and to notify the
+ *  queue when a queued operation is complete.
+ */
+class MNcdOperationQueue                                    
+    {
+    
+public:
+
+
+    /**
+     * Queues the operation.
+     *
+     * @param aOperation The operation to queue.
+     */
+    virtual void QueueOperationL( CNcdBaseOperation& aOperation ) = 0;
+    
+    /**
+     * Notifies the queue about completion of the operation, so the next
+     * operation in the queue can be started.
+     */
+    virtual void QueuedOperationComplete( CNcdBaseOperation& aOperation ) = 0;
+
+protected:
+
+    /**
+     *
+     */
+    virtual ~MNcdOperationQueue() {}
+
+	};
+	
+	
+#endif //  M_NCDOPERATIONQUEUE_H