--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiaccelerator_plat/alf_tracing_api/inc/uiacceltk/HuiProbe.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,101 @@
+/*
+* Copyright (c) 2006-2007 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:   Declares a interface for metrics recorder class
+*
+*/
+
+
+
+#ifndef __HUIPROBE_H__
+#define __HUIPROBE_H__
+
+#include <e32base.h>
+
+class MHuiSessionObject;
+
+/**
+ * Interface for Hitchcock Toolkit Probe object.
+ */
+class MHuiProbe
+    {
+public:
+
+    /**
+     * Event enums for object lifecycle changes.
+     */
+    enum TLifecycleEvent
+        {
+        ELifecycleEventConstructed,
+        ELifecycleEventDestructed,
+        ELifecycleEventReleased,
+        ELifecycleEventRestored,
+        };
+
+    /**
+     * Location enums for points of interest in program flow.
+     */
+    enum TProgramFlowPoint
+        {   
+        EProgramFlowPointRefreshPrepareDraw,
+        EProgramFlowPointRefreshDraw,
+        EProgramFlowPointRefresh,
+        };
+
+    /**
+     * Event enums for entering to or exiting from the point of interest in program flow.
+     */
+    enum TProgramFlowEvent
+        {   
+        EProgramFlowEventEnter,
+        EProgramFlowEventExit,
+        };
+
+    /**
+     * Report change in object life cycle
+     */
+    virtual void ReportObjectLifeCycleEvent(
+        const MHuiSessionObject& aObject,
+        TLifecycleEvent aLifecycleEvent) = 0;
+
+    /**
+     * Report enter or exit to/from "point of interest" in program flow
+     */
+    virtual void ReportProgramFlowEvent(
+        TProgramFlowPoint aProgramFlowPoint,
+        TProgramFlowEvent aProgramFlowEvent) = 0;
+
+    /**
+     * Report enter or exit to/from "point of interest" in program flow, which
+     * resides inside session-aware object
+     */
+    virtual void ReportProgramFlowEvent(
+        const MHuiSessionObject& aSessionObject,
+        TProgramFlowPoint aProgramFlowPoint,
+        TProgramFlowEvent aProgramFlowEvent) = 0;
+
+    /**
+     * Explocitly report the frame rate
+     */
+    virtual void ReportFrameRate(TInt aFrameRate) const = 0;
+
+    /**
+     * Associate the given object with current session (e.g. session
+     * which is currently handling a message).
+     */
+    virtual void AssociateWithCurrentSession(MHuiSessionObject& aObject) = 0;
+
+    };
+
+#endif // __HUIPROBE_H__
+