--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commonappservices/alarmserver/Server/Include/ASSrvDSTChange.h	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,79 @@
+// Copyright (c) 2008-2009 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:
+//
+
+#ifndef __ASSRVNEXTDSTCHANGEOBSERVER_H__
+#define __ASSRVNEXTDSTCHANGEOBSERVER_H__
+
+#include <e32std.h>
+#include <e32base.h>
+#include <e32property.h>
+
+#include <asshddefs.h>
+
+class CASSrvAlarmQueue;
+
+/** This class is used to listen to changes to the DST changes
+that are published by the time zone server.  The time of the next and
+previous DST change and the next and previous offset can be retrieved.
+*/
+class CASSrvDSTChange : public CActive
+	{
+private:
+
+	/** This is a copy of the struct used to publish the DST change in tz. We cannot 
+	use the same one as we do not want a dependancy between these components
+	*/
+	struct TNextDSTChange
+		{
+		TUint8 iVersion;
+		TTime iNextDSTChangeUTC;
+		TInt iNextUTCOffset;
+		TTime iPreviousDSTChangeUTC;
+		TInt iPreviousUTCOffset;
+		TInt iReserved[12];
+		};
+		
+public:
+	static CASSrvDSTChange* NewL(CASSrvAlarmQueue& aASSrvAlarmQueue);
+	~CASSrvDSTChange();
+	
+	TTime NextDSTChangeUTC() const;
+	TTimeIntervalMinutes NextUTCOffset() const;
+	
+	TTime PreviousDSTChangeUTC() const;
+	TTimeIntervalMinutes PreviousUTCOffset() const;
+	
+private: // from CActive
+	void RunL();
+	void DoCancel();
+	
+private:
+	CASSrvDSTChange(CASSrvAlarmQueue& aASSrvAlarmQueue);
+	void ConstructL();
+	
+	void UpdatePropertyValuesL();
+
+private:
+	CASSrvAlarmQueue& iASSrvAlarmQueue;
+	RProperty iDSTChangeProperty;
+	
+	TTime iNextDSTChangeUTC;
+	TTimeIntervalMinutes iNextUTCOffset;
+	
+	TTime iPreviousDSTChangeUTC;
+	TTimeIntervalMinutes iPreviousUTCOffset;
+	};
+
+#endif __ASSRVNEXTDSTCHANGEOBSERVER_H__