--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/persistentstorage/sql/SRC/Server/Compact/SqlCompactTimer.h	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,71 @@
+// 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 SQLCOMPACTTIMER_H
+#define SQLCOMPACTTIMER_H
+
+#include <e32base.h>
+
+//Forward declarations
+class CSqlCompactTestActive;
+class CSqlCompactEntry;
+
+#ifdef _DEBUG
+#define SQLCOMPACTTIMER_INVARIANT() Invariant()
+#else
+#define SQLCOMPACTTIMER_INVARIANT() void(0)
+#endif
+
+/**
+A CTimer derived class that performs the background compaction.
+The CSqlCompactTimer class maintains a queue of CSqlCompactTimer objects waiting to be compacted
+(the databases).
+The class offers methods for adding/removing CSqlCompactTimer objects to/from the queue and a Restart()
+method that can be used to delay the next compaction step, improving this way the SQL server responsiveness to 
+client requests.
+
+The CSqlCompactTimer objects needed compaction will be added at the fromt of the queue.
+Every time when timer's RunL() method gets executed, the last element from the queue will be picked-up and one
+compaction step will be performed. When the CSqlCompactEntry object completes the compaction, it will remove
+itself from the queue.
+
+@see CSqlCompactEntry
+
+@internalComponent
+*/
+NONSHARABLE_CLASS(CSqlCompactTimer) : protected CTimer
+	{
+	friend class CSqlCompactTestActive;
+	
+public:
+	static CSqlCompactTimer* NewL(TInt aIntervalMs);
+	virtual ~CSqlCompactTimer();
+	void Restart();
+	void Queue(CSqlCompactEntry& aEntry);
+	void DeQueue(CSqlCompactEntry& aEntry);
+	void Invariant() const;
+	
+private:
+	CSqlCompactTimer(TInt aIntervalMs);
+	void ConstructL();
+	virtual void RunL();
+
+private:
+	TInt						iIntervalMicroSec;
+	TSglQue<CSqlCompactEntry>	iQueue;
+	
+	};
+
+#endif//SQLCOMPACTTIMER_H