diff -r d9b6a8729acd -r dcbddbbaf8fd vtprotocolplugins/VideoSource/inc/cactivewait.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtprotocolplugins/VideoSource/inc/cactivewait.h	Wed Jun 23 18:14:26 2010 +0300
@@ -0,0 +1,95 @@
+/*
+* Copyright (c) 2008 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:  Video Source subsystem.
+*
+*/
+
+
+#ifndef C_ACTIVEWAIT_H
+#define C_ACTIVEWAIT_H
+
+// INCLUDE FILES
+#include <e32base.h>
+#include <e32svr.h>
+/**
+*  Active waiter class for waiting any active request. When asynchronous
+*  request has been completed a given callback method will be called.
+*
+*  @lib videosource.lib
+*/
+template < class R > class CVSActiveWait: public CActive
+    {
+    private :
+    
+  			typedef void ( R::*TVSActiveWaitCallback) ( TInt );  		
+    
+    public : // Constructors and destructor
+
+        /**
+        * Constructor.
+        * @param "aRequester" ?description
+        */
+        inline CVSActiveWait( R* aRequester );
+
+        /**
+        * Destructor.
+        */
+        inline ~CVSActiveWait();
+
+        /**
+        * Initializes the waiter class.
+        * @param "aCallback" Pointer to callback method that will be called
+        * when asynchronous request has been completed.
+        */
+        inline void InitializeWaiter( TVSActiveWaitCallback aCallback );
+
+        /**
+        * Returns pointer to this active object's TRequestStatus member
+        * (iStatus).
+        * @return Pointer to this classes TRequestStatus member (iStatus).
+        */
+        inline TRequestStatus* RequestStatus();
+
+        /**
+        * Signals waiter with given error code.
+        * @param aError Integer error code.
+        */
+        inline void Signal( TInt aError );
+
+    private :    // Functions from base classes
+
+        /**
+        * From CActive. See CActive for description.
+        */
+        inline void RunL();
+
+        /**
+        * From CActive. See CActive for description.
+        */
+        inline void DoCancel();
+
+    private :    // Data
+
+        // Pointer to requester. Callback method call will be made in this
+        // context.
+        R* iRequester; // not owned
+
+        // Pointer to callback method.
+        TVSActiveWaitCallback iCallback;
+    };
+
+#include "cactivewait.inl"
+    
+#endif      // C_ACTIVEWAIT_H
+     
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