srsf/sisrscontrollerplugin/src/sidatabase.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:46:30 +0200
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/*
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* Copyright (c) 2004-2006 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 class implements the SI Controller Plugin database.
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*
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*/
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// INCLUDE FILES
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#include "sidatabase.h"
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#include "rubydebug.h"
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#include "nssbackupobserver.h"
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// CONSTANTS
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// Estimate size in bytes for an empty database
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// const TInt KSizeEstimateDb = 650;
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// Plugin database format string for secure DBMS
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_LIT( KPluginDatabaseFormatString, "SECURE[10201AFF]" );
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// Name of the DB lock mutex
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_LIT( KLockMutex, "SIDATABASE" );
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CSIDatabase::CSIDatabase
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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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CSIDatabase::CSIDatabase( TFileName aDatabaseFileName )
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                        : iOpenTransaction( EFalse ),
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                          iDatabaseFileName( aDatabaseFileName ),
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                          iDatabaseOpen( EFalse )
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    {
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    // Nothing
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    }
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// -----------------------------------------------------------------------------
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// CSIDatabase::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CSIDatabase::ConstructL()
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    {
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    RUBY_DEBUG_BLOCKL( "CSIDatabase::ConstructL" );
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    // Checks to see if the Database already exists.  If not, it creates one.
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    User::LeaveIfError( iDbSession.Connect() );
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    CreateDatabaseL();
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    OpenDatabaseL();
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    TInt err = iMutex.OpenGlobal( KLockMutex );
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    if ( err != KErrNone )
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        {
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        RUBY_DEBUG0( "CSIDatabase::ConstructL Creating new global mutex" );
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        iMutex.CreateGlobal( KLockMutex );
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        }
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    else
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        {
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        RUBY_DEBUG0( "CSIDatabase::ConstructL Using existing global mutex" );
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        }
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    iCriticalSection.CreateLocal();
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    iBackupObserver = CNssBackupObserver::NewL( *this );
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    }
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// -----------------------------------------------------------------------------
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// CSIDatabase::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CSIDatabase* CSIDatabase::NewL( TFileName aSDDatabaseFileName )
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    {
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    RUBY_DEBUG_BLOCKL( "CSIDatabase::NewL" );
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    CSIDatabase* self = new( ELeave ) CSIDatabase( aSDDatabaseFileName );
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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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// -----------------------------------------------------------------------------
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// CSIDatabase::Rollback
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// Rollback all changes to the database. 
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// -----------------------------------------------------------------------------
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//
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void CSIDatabase::Rollback()
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    {
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    RUBY_DEBUG0( "CSIDatabase::Rollback" );
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    if ( iOpenTransaction )
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        {
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        iDb.Rollback();
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        // Try to recover the database, if it is damaged
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        if( iDb.IsDamaged() )
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            {
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            iDb.Recover();
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            }
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        iMutex.Signal();
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        iCriticalSection.Signal();
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        iOpenTransaction = EFalse;
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        }
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    }
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   119
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// -----------------------------------------------------------------------------
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// CSIDatabase::~CSIDatabase
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// Destructor 
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// -----------------------------------------------------------------------------
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//
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CSIDatabase::~CSIDatabase()
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    {
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    // Rollback if there are any changes not commited
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   128
    if ( iOpenTransaction )
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        {
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        iDb.Rollback();
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        // Try to recover the database, if it is damaged
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        if( iDb.IsDamaged() )
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            {
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            iDb.Recover();
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   135
            }
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parents:
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   136
        // Signal mutex if somebody happens to be waiting in BeginTransactionL()
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        iMutex.Signal();
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        }
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parents:
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   139
        
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    delete iBackupObserver;
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    iCriticalSection.Close();
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    iDb.Close();
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   144
    iDbSession.Close();
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    iDatabaseOpen = EFalse;
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   146
    }
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// -----------------------------------------------------------------------------
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// CSIDatabase::BeginTransactionL
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// Begins a database transaction if not already. Waits until exclusive write lock
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// has been gained.
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// -----------------------------------------------------------------------------
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//
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void CSIDatabase::BeginTransactionL()
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    {
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   156
   
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   157
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    if ( iOpenTransaction )
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        {
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   160
        // If we already have the lock, no need to take it again
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   161
        RUBY_DEBUG0( "CSIDatabase::BeginTransactionL DB is already locked by current process" );
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        return;
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   163
        }
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parents:
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   164
    
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   165
    // Take mutex to ensure that only one process tries to gain the lock
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   166
    iMutex.Wait();
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   167
    iCriticalSection.Wait();
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parents:
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   168
    
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   169
    // Taking the global mutex makes it sure that this should succeed every time
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   170
    TInt readLockErr = iDb.Begin();
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   171
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   172
    if ( readLockErr == KErrNone )
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parents:
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   173
        {
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   174
        iOpenTransaction = ETrue;
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   175
        }
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parents:
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   176
    }
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   177
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// -----------------------------------------------------------------------------
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   179
// CSIDatabase::CommitChangesL
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// Commits all changes to the database.
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   181
// -----------------------------------------------------------------------------
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   182
//
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   183
void CSIDatabase::CommitChangesL( TBool aCompact )
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   184
    {
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   185
    if ( iOpenTransaction )
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parents:
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   186
        {
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   187
        TInt err = iDb.Commit();
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   188
        
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   189
        RUBY_DEBUG1( "CSIDatabase::CommitChangesL iDb.Commit() [%d]", err );
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parents:
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   190
        
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   191
        if ( err != KErrNone )
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parents:
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   192
            {
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   193
            iDb.Rollback();
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parents:
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   194
            // Try to recover the database, if it is damaged
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   195
            if( iDb.IsDamaged() )
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parents:
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   196
                {
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   197
                iDb.Recover();
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diff changeset
   198
                }
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parents:
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   199
                
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   200
            iMutex.Signal();
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   201
            iCriticalSection.Signal();  
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   202
            iOpenTransaction = EFalse;
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   203
            User::Leave( err );
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parents:
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   204
            }
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parents:
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   205
        
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   206
        if ( aCompact )
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parents:
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   207
            {
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diff changeset
   208
            RUBY_DEBUG0( "CSIDatabase::CommitChangesL compacting DB" );
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parents:
diff changeset
   209
            TInt error = iDb.Compact();
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parents:
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   210
            if ( error != KErrNone )
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parents:
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   211
                {
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   212
                RUBY_DEBUG1( "CSIDatabase::CommitChangesL compact error: [%d]", error );
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parents:
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   213
                }
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parents:
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   214
            }
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parents:
diff changeset
   215
        
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parents:
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   216
        // Signal waiting BeginTransactionL()
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parents:
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   217
        iMutex.Signal();
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parents:
diff changeset
   218
        iCriticalSection.Signal();  
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parents:
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   219
        iOpenTransaction = EFalse;
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parents:
diff changeset
   220
        
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
        User::LeaveIfError( err );
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parents:
diff changeset
   222
        }
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parents:
diff changeset
   223
        
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parents:
diff changeset
   224
          
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parents:
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   225
    }
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parents:
diff changeset
   226
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parents:
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   227
// -----------------------------------------------------------------------------
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parents:
diff changeset
   228
// CSIDatabase::DoIDTablesExistL
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parents:
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   229
// Checks to see if ID tables exist.
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parents:
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   230
// -----------------------------------------------------------------------------
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parents:
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   231
//
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parents:
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   232
TBool CSIDatabase::DoIDTablesExistL()
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parents:
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   233
    {
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parents:
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   234
    // Get db table names list
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parents:
diff changeset
   235
    CDbTableNames* table_names = iDb.TableNamesL();
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parents:
diff changeset
   236
    TInt count = table_names->Count();
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parents:
diff changeset
   237
    delete table_names;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   238
    // 1 is for the lock table!
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   239
    return ( count > 1 );
bf1d17376201 Revision: 200949
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parents:
diff changeset
   240
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   241
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   242
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   243
// CSIDatabase::DoesLockTableExistL
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   244
// Checks to see if lock table exists
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   245
// -----------------------------------------------------------------------------
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   246
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   247
TBool CSIDatabase::DoesLockTableExistL()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   248
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   249
    // Get db table names list
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   250
    CDbTableNames* table_names = iDb.TableNamesL();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   251
    TInt count = table_names->Count();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   252
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   253
    for ( TInt counter = 0 ; counter < count ; counter++ )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   254
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   255
        if ( (*table_names)[counter] == _L( "writelocktable" ) )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   256
            {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   257
            delete table_names;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   258
            return ETrue;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   259
            }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   260
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   261
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   262
    delete table_names;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   263
    return EFalse;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   264
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   265
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   266
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   267
// CSIDatabase::DoesModelBankTableExistL
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   268
// Checks to see if model bank table exists
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   269
// -----------------------------------------------------------------------------
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   270
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   271
TBool CSIDatabase::DoesModelBankTableExistL()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   272
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   273
    // Get db table names list
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   274
    CDbTableNames* table_names = iDb.TableNamesL();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   275
    TInt count = table_names->Count();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   276
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   277
    for ( TInt counter = 0 ; counter < count ; counter++ )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   278
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   279
        if ( (*table_names)[counter] == _L( "siModelBankIdTable" ) )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   280
            {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   281
            delete table_names;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   282
            return ETrue;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   283
            }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   284
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   285
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   286
    delete table_names;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   287
    return EFalse;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   288
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   289
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   290
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   291
// CSIDatabase::DoesLexiconTableExistL
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   292
// Checks if lexicon table exists
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   293
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   294
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   295
TBool CSIDatabase::DoesLexiconTableExistL()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   296
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   297
    // Get db table names list
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   298
    CDbTableNames* table_names = iDb.TableNamesL();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   299
    TInt count = table_names->Count();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   300
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   301
    for ( TInt counter = 0 ; counter < count ; counter++ )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   302
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   303
        if ( (*table_names)[counter] == _L( "siLexiconIdTable" ) )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   304
            {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   305
            delete table_names;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   306
            return ETrue;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   307
            }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   308
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   309
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   310
    delete table_names;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   311
    return EFalse;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   312
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   313
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   314
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   315
// CSIDatabase::DoesGrammarTableExistL
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   316
// Checks if grammar table exists
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   317
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   318
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   319
TBool CSIDatabase::DoesGrammarTableExistL()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   320
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   321
    // Get db table names list
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   322
    CDbTableNames* table_names = iDb.TableNamesL();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   323
    TInt count = table_names->Count();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   324
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   325
    for ( TInt counter = 0 ; counter < count ; counter++ )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   326
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   327
        if ( (*table_names)[counter] == _L( "siGrammarIdTable" ) )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   328
            {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   329
            delete table_names;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   330
            return ETrue;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   331
            }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   332
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   333
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   334
    delete table_names;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   335
    return EFalse;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   336
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   337
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   338
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   339
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   340
// CSIDatabase::SIDatabase
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
// Returns a reference to the database.
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
RDbNamedDatabase& CSIDatabase::SIDatabase()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
    return iDb;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
// CSIDatabase::CreateDatabaseL
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
// Creates a database file if one does not exist yet.
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
void CSIDatabase::CreateDatabaseL()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
    RUBY_DEBUG_BLOCKL( "CSIDatabase::CreateDatabaseL" );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
    // Get the drive of the database file
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
    iDatabaseDrive = EDriveC;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
    if ( iDatabaseFileName.Locate( 'c' ) == 0 || iDatabaseFileName.Locate( 'C' ) == 0 )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
        iDatabaseDrive = EDriveC;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
    else if ( iDatabaseFileName.Locate( 'd' ) == 0 || iDatabaseFileName.Locate( 'D' ) == 0 )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
        iDatabaseDrive = EDriveD;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
    else if ( iDatabaseFileName.Locate( 'z' ) == 0 || iDatabaseFileName.Locate( 'Z' ) == 0 )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
        iDatabaseDrive = EDriveZ;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
    else if ( iDatabaseFileName.Locate( 'e' ) == 0 || iDatabaseFileName.Locate( 'E' ) == 0 )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
        iDatabaseDrive = EDriveE;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
    else
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
        User::Leave( KErrPathNotFound );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
    RDbNamedDatabase database;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
    TInt ret = database.Create( iDbSession, iDatabaseFileName, KPluginDatabaseFormatString );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
    if ( ret == KErrAlreadyExists )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
        // Ignore KErrAlreadyExists, we will use the existing one if it is there
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
        ret = KErrNone;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
    database.Close();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
    User::LeaveIfError( ret );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
// CSIDatabase::OpenDatabaseL
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
// Opens the database.
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
void CSIDatabase::OpenDatabaseL()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
    if ( !iDatabaseOpen )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
        {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
        
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
        User::LeaveIfError( iDb.Open( iDbSession, iDatabaseFileName, KPluginDatabaseFormatString ) );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
        
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
        // Try to recover the database, if it is damaged
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
        if( iDb.IsDamaged() )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
            {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
            RUBY_DEBUG0( "CSIDatabase::OpenDatabaseL - Db is damaged. Attempt to recover." );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
            
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
            User::LeaveIfError( iDb.Recover() );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
            }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
        
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
        iDatabaseOpen = ETrue;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
// CSIDatabase::CloseDatabase
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
// Closes the database.
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
TInt CSIDatabase::CloseDatabase()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
    RUBY_DEBUG0( "CSIDatabase::CloseDatabase" ); 
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
  
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
    iDb.Close();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
    iDatabaseOpen = EFalse;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
    return KErrNone;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
// CSIDatabase::DbSession
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
// Return reference to DB session.
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
RDbs& CSIDatabase::DbSession()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
    return iDbSession;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
// CSIDatabase::DbDrive
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
// Returns a drive for DB file.
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
TInt CSIDatabase::DbDrive()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
    return iDatabaseDrive;
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
// CSIDatabase::CreateLockTableL
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
// Creates a dummy table to gain write-lock at the beginning of each transaction.
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
void CSIDatabase::CreateLockTableL()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
    // Create writelocktable
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
    // This table is accessed every time when transaction starts to gain
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
    // exclusive locking of the DB
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
    _LIT( KWriteLockTable, "writelocktable" );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
    _LIT( KCol1, "temporary" );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
    OpenDatabaseL();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
    // Create the rrd tables definition (columnset).
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
    CDbColSet* columns = CDbColSet::NewLC();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
    // The tag id 
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
    TDbCol dbCol1( KCol1, EDbColUint32 );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
    columns->AddL( dbCol1 );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
    User::LeaveIfError( iDb.CreateTable( KWriteLockTable, *columns ) );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
    // Cleanup columns
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
    CleanupStack::PopAndDestroy( columns ); 
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
// CSIDatabase::LockTransactionsL
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
// Permit transactions and release database
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
void CSIDatabase::LockTransactionsL()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
    // lock transactions
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
    RUBY_DEBUG_BLOCK( "CSIDatabase::LockTransactionsL" );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
    iCriticalSection.Wait(); // wait until a possible transaction ends
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
            
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
    // release a database
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
    CloseDatabase();
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
// CSIDatabase::UnlockTransactionsL
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
// Allow transactions and reserve database
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
// -----------------------------------------------------------------------------
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
//
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
void CSIDatabase::UnlockTransactionsL()
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
    {
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
    // unlock transactions
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
    RUBY_DEBUG_BLOCK( "CSIDatabase::UnlockTransactionsL" );
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
    OpenDatabaseL(); // open database
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
    
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
    if ( iCriticalSection.IsBlocked() )
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
        {        
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
        iCriticalSection.Signal(); // allow to do transactions
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
        }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
    }
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
bf1d17376201 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
//  End of File