cbs/CbsServer/ServerSrc/CCbsDbImp.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 18 Aug 2010 10:19:22 +0300
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permissions -rw-r--r--
Revision: 201031 Kit: 201033
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/*
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* Copyright (c) 2003 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:  This contains basis for the implementation of the database.
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*    
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*                Constructs instances of database subclasses CCbsDbImpSettings,
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*                CCbsDbImpTopicCollection, CCbsDbTopicList and CCbsDbTopicMessages.
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*                On initialization determines whether datafiles already exist.
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*                If all of them are present and valid, no special action is taken.
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*
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*                If some or all datafiles are missing or corrupt, all datafiles
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*                are deleted and new files created.
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*                Factory default settings, if available, are then loaded from
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*                Shared Data and stored in server datafiles. This is done by
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*                database subinstances.
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*
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*/
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//  INCLUDE FILES
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#include <barsc.h>
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#include <e32svr.h>
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#include <bautils.h>
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#include <CbsServer.rsg>
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#include "CbsUtils.h"
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#include "CbsServerPanic.h"
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#include "CCbsDbImp.H"
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#include "CbsDbConstants.h"
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#include "CCbsDbImpSettings.H"
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#include "CCbsDbImpTopicMessages.h"
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#include "CCbsDbImpTopicList.h"
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#include "CCbsDbImpTopicCollection.h"
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#include "CCbsBackupMonitor.h"
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#include "CCbsDiskSpaceMonitor.h"
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#include "CbsLogger.h"
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// Data file names
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_LIT( KCbsTopicsAndMsgsFileName, "cbtopicsmsgs.dat" );
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_LIT( KCbsUnsavedMsgsFileName, "cbunsaved.dat" );
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// ================= MEMBER FUNCTIONS =======================
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// -----------------------------------------------------------------------------
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// CCbsDbImp::CCbsDbImp
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// C++ default constructor can NOT contain any code, that
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// might leave.
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// -----------------------------------------------------------------------------
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//
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CCbsDbImp::CCbsDbImp()
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    {
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    }
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// -----------------------------------------------------------------------------
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// CCbsDbImp::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CCbsDbImp::ConstructL()
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    {
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    User::LeaveIfError( iFs.Connect() );
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    // Create the disk space monitor    
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    iDiskSpaceMonitor = CCbsDiskSpaceMonitor::NewL( *this );
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    TInt errorCode( KErrNone );
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#ifdef __SECURE_BACKUP__
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    // Use PubSub for monitoring
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    iBackupMonitor = CCbsBackupMonitor::NewL( *this );
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#else
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    // Create a backup observer wrapper. If an error is returned,
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    // ignore it and leave iBackupWrapper to NULL.
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    TRAP( errorCode, ( iBackupWrapper = CBaBackupSessionWrapper::NewL() ) );
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#endif        
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    // Try to create the database components. If we couldn't because
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    // the disk is almost full, that's alright. We'll try again
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    // later.
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    TRAP( errorCode, CreateComponentsL() );
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    if ( errorCode == KErrDiskFull )
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        {
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        // Install an observer for the critical level
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        WaitForCriticalLevel();
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        }
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    else
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        {
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        User::LeaveIfError( errorCode );
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        }
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    }
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// -----------------------------------------------------------------------------
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// CCbsDbImp::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CCbsDbImp* CCbsDbImp::NewL()
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    {
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    CCbsDbImp* self = new ( ELeave ) CCbsDbImp;
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop();
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    return self;
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    }
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// Destructor
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CCbsDbImp::~CCbsDbImp()
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    {
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    CBSLOGSTRING("CBSSERVER: >>> CCbsDbImp::~CCbsDbImp()");
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    if ( iDiskSpaceMonitor )
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        {
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        delete iDiskSpaceMonitor;
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        }    
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    DeleteComponents();
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    iFs.Close();
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    CBSLOGSTRING("CBSSERVER: <<< CCbsDbImp::~CCbsDbImp()");
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    }
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// -----------------------------------------------------------------------------
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// CCbsDbImp::TopicListL
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// Returns a reference to the current active topic list. 
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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CCbsDbImpTopicList& CCbsDbImp::TopicListL()
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    {
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    // Check if we have initialized the database succesfully
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    if ( !iTopicList )
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        {
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        User::Leave( KErrDiskFull );
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        }
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    return *iTopicList;    
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    }
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// -----------------------------------------------------------------------------
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// CCbsDbImp::TopicMessagesL
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// Returns a reference to the current topic messages DB object. 
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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CCbsDbImpTopicMessages& CCbsDbImp::TopicMessagesL()
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    {
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    CBSLOGSTRING("CBSSERVER: >>> CCbsDbImp::TopicMessagesL()");
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    // Check if we have initialized the database succesfully
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    if ( !iTopicMessages )
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        {
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        CBSLOGSTRING("CBSSERVER: CCbsDbImp::TopicMessagesL(): No iTopicMessages instance, leaving with KErrDiskFull...");
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        User::Leave( KErrDiskFull );
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        }
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    CBSLOGSTRING("CBSSERVER: <<< CCbsDbImp::TopicMessagesL(), returning *iTopicMessages.");
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    return *iTopicMessages;
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    }
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// -----------------------------------------------------------------------------
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// CCbsDbImp::SettingsL
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// Returns a reference to the settings DB object.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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CCbsDbImpSettings& CCbsDbImp::SettingsL()
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    {
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    // Check if we have initialized the database succesfully
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    if ( !iSettings )
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        {
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        User::Leave( KErrDiskFull );
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        }
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    return *iSettings;
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    }
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// -----------------------------------------------------------------------------
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// CCbsDbImp::TopicCollectionL
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// Returns a reference to the topic collection.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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CCbsDbImpTopicCollection& CCbsDbImp::TopicCollectionL()
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    {
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    // Check if we have initialized the database succesfully
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    if ( !iTopicCollection )
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   199
        {
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        User::Leave( KErrDiskFull );
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        }
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   202
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    return *iTopicCollection;
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    }
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// -----------------------------------------------------------------------------
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// CCbsDbImp::BackupWrapperL
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// Returns a reference to the backup wrapper. 
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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CBaBackupSessionWrapper& CCbsDbImp::BackupWrapperL()
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    {
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    if ( !iBackupWrapper )
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        {
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        User::Leave( KErrGeneral );
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        }
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    return *iBackupWrapper;
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    }
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   221
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// ---------------------------------------------------------
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// IsInitialized()    
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//
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// ---------------------------------------------------------
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TBool CCbsDbImp::IsInitialized() const
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    {
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    return iSettings != NULL;
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    }
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// -----------------------------------------------------------------------------
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// CCbsDbImp::CreateComponentsL
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// Creates topic list, settings topic messages and topic
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// collection instances and loads factory settings if necessary. 
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CCbsDbImp::CreateComponentsL()
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    {
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    CBSLOGSTRING("CBSSERVER: >>> CCbsDbImp::CreateComponentsL()");
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    // Return if we have already been initialized
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    if ( IsInitialized() )
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        {
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        return;
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        }    
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    TBuf<16> topicsFile( KCbsTopicsAndMsgsFileName );
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    TBuf<16> messagesFile( KCbsUnsavedMsgsFileName );  
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    // Delete the old file for unsaved messages 
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    CbsUtils::DeleteFileL( iFs, messagesFile );
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    CBSLOGSTRING("CBSSERVER: CCbsDbImp::CreateComponentsL(): messagesFile deleted.");
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    // Make sure that data file paths exist.
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    iFs.MkDirAll( topicsFile ); 
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    iFs.MkDirAll( messagesFile ); 
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    // Create the individual components. If creating any of the components
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    // fails, this method leaves and created components are deleted.
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    CCbsDbImpSettings* settings = CreateSettingsL();
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    CleanupStack::PushL( settings );
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    CCbsDbImpTopicList* topicList = CreateTopicListL( topicsFile, messagesFile );
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    CleanupStack::PushL( topicList );
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    CCbsDbImpTopicMessages* topicMessages = CreateTopicMessagesL( *topicList );
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    CleanupStack::PushL( topicMessages );
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    CCbsDbImpTopicCollection* topicCollection = CreateTopicCollectionL();
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    CleanupStack::PushL( topicCollection );
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#ifndef __SECURE_BACKUP__
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    CBSLOGSTRING("CBSSERVER: CCbsDbImp::CreateComponentsL(): __SECURE_BACKUP__ not defined.");
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    // Register the file to backup server
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    if ( iBackupWrapper )
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        {
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        iBackupWrapper->RegisterFileL( *topicsFile, *topicList );
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        }
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#endif
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    // We have succesfully created all components. Set them to member
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    // variables.
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    iTopicList = topicList;
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    iSettings = settings;
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    iTopicMessages = topicMessages;
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    iTopicCollection = topicCollection;
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    // Does not transfer ownership.
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    iTopicList->SetTopicMessages( iTopicMessages );    
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    // If we could create the database, cancel the disk space notify request
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    WaitForCriticalLevelCancel();
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    // The database components are preserved, but the resource reader and
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    // related buffers are deleted.
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    CleanupStack::Pop( 4 ); // topicMessages, settings, topicList, topicCollection
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    CBSLOGSTRING("CBSSERVER: <<< CCbsDbImp::CreateComponentsL()");
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    }
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// ---------------------------------------------------------
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// DeleteComponents()     
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//
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// ---------------------------------------------------------
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void CCbsDbImp::DeleteComponents()
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    {
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    delete iTopicMessages;
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    iTopicMessages = NULL;
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    delete iTopicCollection;
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    iTopicCollection = NULL;
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#ifdef __SECURE_BACKUP__
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#else
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    // Delete owned objects and deregister files from
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    // backup server.
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    if ( iBackupWrapper && iSettings )
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        {
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        //iBackupWrapper->DeregisterFile( iSettings->FileName() );
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        }
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    if ( iBackupWrapper && iTopicList )
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        {
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        //iBackupWrapper->DeregisterFile( iTopicList->TopicFilename() );
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        }
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#endif        
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    delete iSettings;
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    iSettings = NULL;
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    delete iTopicList;
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    iTopicList = NULL;
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#ifdef __SECURE_BACKUP__
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    delete iBackupMonitor;
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    iBackupMonitor = NULL;
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#else
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    delete iBackupWrapper;
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    iBackupWrapper = NULL;
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#endif    
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
    }
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
// CreateSettingsL()     
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
//
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
CCbsDbImpSettings* CCbsDbImp::CreateSettingsL()
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
    {
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
    CCbsDbImpSettings* settings = NULL;
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
    TRAPD( err, ( settings = CCbsDbImpSettings::NewL( *this ) ) );
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
    User::LeaveIfError( err );
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
    return settings;
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
    }
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
// CreateTopicListL()     
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
//
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
CCbsDbImpTopicList* CCbsDbImp::CreateTopicListL( 
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
    const TDesC& aTopicsFile,
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
    const TDesC& aMessagesFile )
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
    {
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
    // Try to create the topic list.
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
    CCbsDbImpTopicList* topicList = NULL;
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
    TRAPD( err, ( topicList = CCbsDbImpTopicList::NewL(
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
        iFs, aTopicsFile, aMessagesFile, *this ) ) );
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
    // Handle data file corruption here.
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
    switch ( err )
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
        {
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
        case KErrNone:
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
            break;
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
        case KErrCorrupt:
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
        case KErrEof:
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
            // The data file was corrupt. Delete it and try again.
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
            CbsUtils::DeleteFileL( iFs, aTopicsFile );
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
            CbsUtils::DeleteFileL( iFs, aMessagesFile );
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
            topicList = CCbsDbImpTopicList::NewL(
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
                iFs, aTopicsFile, aMessagesFile, *this );
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
            break;
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
        default:
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
            User::Leave( err );
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
            break;
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
        }
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
    return topicList;
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
    }
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
// CreateTopicMessagesL()     
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
//
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
CCbsDbImpTopicMessages* CCbsDbImp::CreateTopicMessagesL( 
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
    CCbsDbImpTopicList& aTopicList )
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
    {
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
    // This cannot leave because of data file corruption.
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
    return CCbsDbImpTopicMessages::NewL( aTopicList, iFs );
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
    }
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
// CreateTopicCollectionL()     
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
//
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
CCbsDbImpTopicCollection* CCbsDbImp::CreateTopicCollectionL()
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
    {
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
    // This does not create a data file.
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
    return CCbsDbImpTopicCollection::NewL();
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
    }
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
// WaitForCriticalLevelL()     
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
//
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
void CCbsDbImp::WaitForCriticalLevel()
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
    {
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
    // We are running low on disk space. Ask for a notification
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
    // when there is space again.
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
    iDiskSpaceMonitor->IssueRequest();  
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
    }
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
// WaitForCriticalLevelCancel()     
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
//
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
void CCbsDbImp::WaitForCriticalLevelCancel()
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
    {
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
    // Cancel the notification for critical level    
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
    iDiskSpaceMonitor->Cancel();    
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
    }
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
// ChangeFileLocksL()
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
// 
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
// Releases all files for backup/restore, or takes the
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
// files into use again.
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
// ---------------------------------------------------------
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
    
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
void CCbsDbImp::ChangeFileLocksL( const TCbsBackupRequest& aRequest )
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
    {
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
    CBSLOGSTRING("CBSSERVER: >>> CCbsDbImp::ChangeFileLocksL()");
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
    
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
    // Check/change the topiclist/topics/saved messages file
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
    iTopicList->ChangeFileLockL( aRequest );
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
    
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
    CBSLOGSTRING("CBSSERVER: <<< CCbsDbImp::ChangeFileLocksL()");
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
    }
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
// ================= OTHER EXPORTED FUNCTIONS ==============
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
ff3b6d0fd310 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
//  End of File