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// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#include "LOGCOMP.H"
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#include "logservpanic.h"
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#include "LogServDatabaseTransactionInterface.h"
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// Constants
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const TInt KLogMaxWastedSpacePercentage = 25;
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const TInt KLogMaxWastedSpace = 128 * 1024;
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const TInt KLogMinWastedSpace = 32 * 1024;
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CLogCompact::CLogCompact(MLogServDatabaseTransactionInterface& aDatabase, TInt aPriority)
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: CLogActive(aPriority), iDatabase(aDatabase)
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{
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}
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void CLogCompact::Start(TRequestStatus& aStatus)
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{
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__ASSERT_DEBUG(!IsActive(), Panic(ELogAlreadyActive5));
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TInt error = iOperation.UpdateStats(iDatabase.DTIDatabase(), iStep());
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iCompact = EFalse;
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Queue(aStatus);
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TRequestStatus* st = &iStatus;
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User::RequestComplete(st, error);
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SetActive();
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}
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void CLogCompact::DoRunL()
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{
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if (iStep() > 0)
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{
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iOperation.Next(iStep, iStatus);
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SetActive();
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}
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else if (!iCompact && CompactRequired())
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{
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iOperation.Close();
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iCompact = ETrue;
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User::LeaveIfError(iOperation.Compact(iDatabase.DTIDatabase(), iStep()));
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if (iStep() > 0)
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{
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TRequestStatus* st = &iStatus;
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User::RequestComplete(st, KErrNone);
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SetActive();
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}
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}
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}
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TBool CLogCompact::CompactRequired() const
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{
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RDbDatabase::TSize size = iDatabase.DTIDatabase().Size();
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if (size.iUsage < 0)
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return EFalse;
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const TInt wastedSpace = (size.iSize * (100 - size.iUsage)) / 100;
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return (wastedSpace > KLogMinWastedSpace && (100 - size.iUsage) > KLogMaxWastedSpacePercentage) || wastedSpace > KLogMaxWastedSpace;
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}
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void CLogCompact::DoComplete(TInt&)
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{
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iOperation.Close();
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}
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