diff -r 000000000000 -r a41df078684a kerneltest/f32test/smassstorage/inc/cpropertywatch.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/f32test/smassstorage/inc/cpropertywatch.h	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,107 @@
+// Copyright (c) 2004-2009 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:
+// Component test of Publish and Subscribe
+// 
+//
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#ifndef __CPROPERTYWATCH_H__
+#define __CPROPERTYWATCH_H__
+
+#include <e32base.h>
+#include <e32property.h>
+#include "usbmsshared.h"
+
+class CPropertyHandler;
+class CStateMachine;
+
+enum 
+	{
+	EUsbMsState_Read = EUsbMsDriveState_Error + 100,
+	EUsbMsState_Written
+	};
+	
+/**
+ An active object that subscribes to a specified Mass Storage property and
+ calls a provided handler each time the property is published.
+ */
+class CPropertyWatch : public CActive
+	{
+public:
+	static CPropertyWatch* NewLC(TUsbMsDriveState_Subkey aSubkey, CPropertyHandler& aHandler);
+
+private:
+	CPropertyWatch(CPropertyHandler& aHandler);
+	void ConstructL(TUsbMsDriveState_Subkey aSubkey);
+	~CPropertyWatch();
+	void RunL();
+	void DoCancel();
+	
+	RProperty iProperty;
+	CPropertyHandler& iHandler;
+	};
+	
+/**
+ A property handler class that handles the change of ms drive status
+ */
+ class CPropertyHandler : public CBase
+ 	{
+ public:
+ 	virtual void HandleStatusChange(RProperty& aProperty) = 0;
+ 	
+ protected:
+ 	CPropertyHandler(TInt aDriveNo, CStateMachine& aSm);
+ 	virtual ~CPropertyHandler();
+ 
+ protected:
+ 	TInt iDriveNo; 
+ 	CStateMachine& iStateMachine;
+ 	};
+ 	
+ class CMsDriveStatusHandler : public CPropertyHandler
+ 	{
+ public:
+ 	static CMsDriveStatusHandler* NewLC(TInt aDriveNo, CStateMachine& aSm);
+ 	void HandleStatusChange(RProperty& aProperty);
+ 	
+ protected:
+  	CMsDriveStatusHandler(TInt aDriveNo, CStateMachine& aSm);
+ 	};
+ 	
+ class CMsReadStatusHandler : public CPropertyHandler
+ 	{
+ public:
+ 	static CMsReadStatusHandler* NewLC(TInt aDriveNo, CStateMachine& aSm);
+ 	void HandleStatusChange(RProperty& aProperty);
+ 	
+ private:
+  	CMsReadStatusHandler(TInt aDriveNo, CStateMachine& aSm);
+ 	};
+
+ class CMsWrittenStatusHandler : public CPropertyHandler
+ 	{
+ public:
+ 	static CMsWrittenStatusHandler* NewLC(TInt aDriveNo, CStateMachine& aSm);
+ 	void HandleStatusChange(RProperty& aProperty);
+ 	
+ private:
+  	CMsWrittenStatusHandler(TInt aDriveNo, CStateMachine& aSm);
+ 	};
+
+#endif // __CPROPERTYWATCH_H__
+