--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dvrengine/CommonRecordingEngineClient/inc/CCRMsgQueueObserver.h	Wed Sep 01 12:20:37 2010 +0100
@@ -0,0 +1,151 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:    Common recording engine message queue observer*
+*/
+
+
+
+
+#ifndef CCRMSGQUEUEOBSERVER_H
+#define CCRMSGQUEUEOBSERVER_H
+
+// INCLUDES
+#include <e32base.h>
+#include <e32msgqueue.h>
+#include <ipvideo/MCREngineObserver.h>
+#include <ipvideo/CRTypeDefs.h>
+
+// CONSTANTS
+// None
+
+// MACROS
+// None
+
+// DATA TYPES
+// None
+
+// FORWARD DECLARATIONS
+class MCREngineObserver;
+
+// CLASS DECLARATION
+
+/**
+*  Common recording engine message queue observer.
+*  Uses Symbian OS class RMsgQueue.
+*
+*  @lib CommonRecordingEngine.lib
+*  @since Series 60 3.0
+*/
+NONSHARABLE_CLASS( CCRMsgQueueObserver ) : public CActive
+    {            
+
+public:  // Constructors and destructor
+
+    /**
+    * Two-phased constructor.
+    */
+    static CCRMsgQueueObserver* NewL( );
+
+    /**
+    * Virtual destructor.
+    */
+    virtual ~CCRMsgQueueObserver();
+
+public: // New methods
+
+    /**
+    * Method that adds a view to message queue's observer list.
+    * @since Series 60 3.0
+    * @param aObserver is the object that will be notified
+    * @return none.
+    */
+    void AddMsgQueueObserverL( MCREngineObserver* aObserver );
+
+    /** 
+    * Sets session id to listen to.
+    * @since Series 60 3.0
+    * @param aSessionId session id
+    * @return none.
+    */
+    void SetSessionId( TInt aSessionId );
+
+private: // Constructors
+
+    /**
+    * C++ default constructor.
+    */
+    CCRMsgQueueObserver( );
+
+    /**
+    * By default Symbian 2nd phase constructor is private.
+    */
+    void ConstructL();
+
+private: // Methods from base classes
+
+    /**
+    * From CActive.
+    * Handles an active object’s request completion event.
+    * @since Series 60 3.0
+    * @param none.
+    * @return none.
+    */
+    void RunL();
+
+    /**
+    * From CActive.
+    * Called when outstanding request is cancelled.
+    * This function is called as part of the active object’s Cancel().
+    * @since Series 60 3.0
+    * @param none.
+    * @return none.
+    */
+    void DoCancel();
+
+    /**
+    * From CActive.
+    * Handles a leave occurring in the request completion  event handler RunL().
+    * @since Series 60 3.0
+    * @param aError Error code.
+    * @return none.
+    */
+    TInt RunError( TInt aError );
+
+private: // Data
+
+    /**
+    * Actual message queue. Or handle to kernel-side object.
+    */
+    RMsgQueue<SCRQueueEntry> iQueue; 
+
+    /**
+    * This is data-area for the message received from kernel side.
+    */
+    SCRQueueEntry iReceivedMessage; 
+
+    /**
+    * Observers are views.
+    */
+    RPointerArray<MCREngineObserver> iObservers;
+
+    /** 
+    * Session id to listen to
+    */
+    TInt iSessionId;
+
+    };
+
+#endif // CCRMSGQUEUEOBSERVER_H
+
+// End of File