os/persistentdata/persistentstorage/sql/SRC/Server/Compact/SqlCompactEntry.h
changeset 0 bde4ae8d615e
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/persistentdata/persistentstorage/sql/SRC/Server/Compact/SqlCompactEntry.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,85 @@
     1.4 +// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#ifndef SQLCOMPACTENTRY_H
    1.20 +#define SQLCOMPACTENTRY_H
    1.21 +
    1.22 +#include "SqlCompact.h"
    1.23 +
    1.24 +//Forward declarations
    1.25 +class CSqlCompactTestActive;
    1.26 +class CSqlCompactTimer;
    1.27 +
    1.28 +////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    1.29 +////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    1.30 +
    1.31 +#ifdef _DEBUG
    1.32 +#define SQLCOMPACTENTRY_INVARIANT() Invariant()
    1.33 +#else
    1.34 +#define SQLCOMPACTENTRY_INVARIANT() void(0)
    1.35 +#endif
    1.36 +
    1.37 +/**
    1.38 +Every CSqlCompactEntry maintains a connection to the database that has to be compacted in background mode.
    1.39 +When the number of the free pages reaches or is above the threshold, the background compaction will be activated
    1.40 +and performed in steps.
    1.41 +
    1.42 +@see MSqlCompactConn
    1.43 +@see CSqlCompactTimer
    1.44 +
    1.45 +@internalComponent
    1.46 +*/
    1.47 +NONSHARABLE_CLASS(CSqlCompactEntry) : public CBase
    1.48 +	{
    1.49 +	friend class CSqlCompactTestActive;
    1.50 +	
    1.51 +public:
    1.52 +	static CSqlCompactEntry* NewLC(const TDesC& aFullName, TSqlCompactConnFactoryL aConnFactoryL, 
    1.53 +								   const TSqlCompactSettings& aSettings, CSqlCompactTimer& aTimer);
    1.54 +	TInt AddRef();
    1.55 +	TInt Release();
    1.56 +	TInt Compact();
    1.57 +	const TDesC& FullName() const;
    1.58 +	void Invariant() const;
    1.59 +	
    1.60 +private:
    1.61 +	CSqlCompactEntry(const TSqlCompactSettings& aSettings, CSqlCompactTimer& aTimer);
    1.62 +	virtual ~CSqlCompactEntry();
    1.63 +	void ConstructL(const TDesC& aFullName, TSqlCompactConnFactoryL aConnFactoryL);
    1.64 +	void ResetState();
    1.65 +	MSqlCompactConn& Connection();
    1.66 +	static void FreePageCallback(void* aThis, TInt aFreePageCount);
    1.67 +
    1.68 +public:
    1.69 +    TSglQueLink			iLink;       
    1.70 +    
    1.71 +private:
    1.72 +	RBuf				iFullName;
    1.73 +	TSqlCompactSettings	iSettings;
    1.74 +	CSqlCompactTimer& 	iTimer;
    1.75 +	MSqlCompactConn*	iConnection;
    1.76 +	TInt				iRefCounter;
    1.77 +	enum TState 
    1.78 +		{
    1.79 +		EInactive,
    1.80 +		EInProgress
    1.81 +		};
    1.82 +	TState				iState;
    1.83 +	TInt				iPageCount;
    1.84 +	TBool				iFreePageCallbackDisabled;
    1.85 +
    1.86 +	};
    1.87 +
    1.88 +#endif//SQLCOMPACTENTRY_H