persistentstorage/sql/SRC/Server/Compact/SqlCompactEntry.h
changeset 0 08ec8eefde2f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/persistentstorage/sql/SRC/Server/Compact/SqlCompactEntry.h	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,85 @@
+// 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 SQLCOMPACTENTRY_H
+#define SQLCOMPACTENTRY_H
+
+#include "SqlCompact.h"
+
+//Forward declarations
+class CSqlCompactTestActive;
+class CSqlCompactTimer;
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#ifdef _DEBUG
+#define SQLCOMPACTENTRY_INVARIANT() Invariant()
+#else
+#define SQLCOMPACTENTRY_INVARIANT() void(0)
+#endif
+
+/**
+Every CSqlCompactEntry maintains a connection to the database that has to be compacted in background mode.
+When the number of the free pages reaches or is above the threshold, the background compaction will be activated
+and performed in steps.
+
+@see MSqlCompactConn
+@see CSqlCompactTimer
+
+@internalComponent
+*/
+NONSHARABLE_CLASS(CSqlCompactEntry) : public CBase
+	{
+	friend class CSqlCompactTestActive;
+	
+public:
+	static CSqlCompactEntry* NewLC(const TDesC& aFullName, TSqlCompactConnFactoryL aConnFactoryL, 
+								   const TSqlCompactSettings& aSettings, CSqlCompactTimer& aTimer);
+	TInt AddRef();
+	TInt Release();
+	TInt Compact();
+	const TDesC& FullName() const;
+	void Invariant() const;
+	
+private:
+	CSqlCompactEntry(const TSqlCompactSettings& aSettings, CSqlCompactTimer& aTimer);
+	virtual ~CSqlCompactEntry();
+	void ConstructL(const TDesC& aFullName, TSqlCompactConnFactoryL aConnFactoryL);
+	void ResetState();
+	MSqlCompactConn& Connection();
+	static void FreePageCallback(void* aThis, TInt aFreePageCount);
+
+public:
+    TSglQueLink			iLink;       
+    
+private:
+	RBuf				iFullName;
+	TSqlCompactSettings	iSettings;
+	CSqlCompactTimer& 	iTimer;
+	MSqlCompactConn*	iConnection;
+	TInt				iRefCounter;
+	enum TState 
+		{
+		EInactive,
+		EInProgress
+		};
+	TState				iState;
+	TInt				iPageCount;
+	TBool				iFreePageCallbackDisabled;
+
+	};
+
+#endif//SQLCOMPACTENTRY_H