1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef SQLCOMPACTENTRY_H

    17 #define SQLCOMPACTENTRY_H

    18 

    19 #include "SqlCompact.h"

    20 

    21 //Forward declarations

    22 class CSqlCompactTestActive;

    23 class CSqlCompactTimer;

    24 

    25 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

    26 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

    27 

    28 #ifdef _DEBUG

    29 #define SQLCOMPACTENTRY_INVARIANT() Invariant()

    30 #else

    31 #define SQLCOMPACTENTRY_INVARIANT() void(0)

    32 #endif

    33 

    34 /**

    35 Every CSqlCompactEntry maintains a connection to the database that has to be compacted in background mode.

    36 When the number of the free pages reaches or is above the threshold, the background compaction will be activated

    37 and performed in steps.

    38 

    39 @see MSqlCompactConn

    40 @see CSqlCompactTimer

    41 

    42 @internalComponent

    43 */

    44 NONSHARABLE_CLASS(CSqlCompactEntry) : public CBase

    45 	{

    46 	friend class CSqlCompactTestActive;

    47 	

    48 public:

    49 	static CSqlCompactEntry* NewLC(const TDesC& aFullName, TSqlCompactConnFactoryL aConnFactoryL, 

    50 								   const TSqlCompactSettings& aSettings, CSqlCompactTimer& aTimer);

    51 	TInt AddRef();

    52 	TInt Release();

    53 	TInt Compact();

    54 	const TDesC& FullName() const;

    55 	void Invariant() const;

    56 	

    57 private:

    58 	CSqlCompactEntry(const TSqlCompactSettings& aSettings, CSqlCompactTimer& aTimer);

    59 	virtual ~CSqlCompactEntry();

    60 	void ConstructL(const TDesC& aFullName, TSqlCompactConnFactoryL aConnFactoryL);

    61 	void ResetState();

    62 	MSqlCompactConn& Connection();

    63 	static void FreePageCallback(void* aThis, TInt aFreePageCount);

    64 

    65 public:

    66     TSglQueLink			iLink;       

    67     

    68 private:

    69 	RBuf				iFullName;

    70 	TSqlCompactSettings	iSettings;

    71 	CSqlCompactTimer& 	iTimer;

    72 	MSqlCompactConn*	iConnection;

    73 	TInt				iRefCounter;

    74 	enum TState 

    75 		{

    76 		EInactive,

    77 		EInProgress

    78 		};

    79 	TState				iState;

    80 	TInt				iPageCount;

    81 	TBool				iFreePageCallbackDisabled;

    82 

    83 	};

    84 

    85 #endif//SQLCOMPACTENTRY_H