1 /*

     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: Class compacting a landmark database in steps.

    15 *

    16 *

    17 */

    18 

    19 

    20 // INCLUDE FILES

    21 #include    "EPos_CPosLmCompactDatabase.h"

    22 #include    "EPos_CPosLmLocalDbAccess.h"

    23 

    24 // CONSTANTS

    25 const TReal32 KOperationDone = 1;

    26 

    27 // ============================ MEMBER FUNCTIONS ===============================

    28 

    29 // -----------------------------------------------------------------------------

    30 // CPosLmCompactDatabase::CPosLmCompactDatabase

    31 // C++ default constructor can NOT contain any code, that

    32 // might leave.

    33 // -----------------------------------------------------------------------------

    34 //

    35 CPosLmCompactDatabase::CPosLmCompactDatabase() :

    36     CBase()

    37     {

    38     }

    39 

    40 // -----------------------------------------------------------------------------

    41 // CPosLmCompactDatabase::ConstructL

    42 // Symbian 2nd phase constructor can leave.

    43 // -----------------------------------------------------------------------------

    44 //

    45 void CPosLmCompactDatabase::ConstructL(

    46     CPosLmLocalDbAccess& aDbAccess)

    47     {

    48     RDbNamedDatabase db;

    49     aDbAccess.GetDatabase(db);

    50     User::LeaveIfError(iDbIncremental.Compact(db, iIncrementalStep));

    51     iIncrementalStartValue = iIncrementalStep;

    52     }

    53 

    54 // -----------------------------------------------------------------------------

    55 // CPosLmCompactDatabase::NewL

    56 // Two-phased constructor.

    57 // -----------------------------------------------------------------------------

    58 //

    59 EXPORT_C CPosLmCompactDatabase* CPosLmCompactDatabase::NewL(

    60     CPosLmLocalDbAccess& aDbAccess)

    61     {

    62     CPosLmCompactDatabase* self = new( ELeave ) CPosLmCompactDatabase();

    63     CleanupStack::PushL(self);

    64     self->ConstructL(aDbAccess);

    65     CleanupStack::Pop(self);

    66     return self;

    67     }

    68 

    69 // Destructor

    70 CPosLmCompactDatabase::~CPosLmCompactDatabase()

    71     {

    72     iDbIncremental.Close();

    73     }

    74 

    75 // -----------------------------------------------------------------------------

    76 // CPosLmCompactDatabase::NextL

    77 //

    78 // (other items were commented in a header).

    79 // -----------------------------------------------------------------------------

    80 //

    81 EXPORT_C TBool CPosLmCompactDatabase::NextL(

    82     TReal32& aProgress)

    83     {

    84     User::LeaveIfError(iDbIncremental.Next(iIncrementalStep));

    85 

    86     if (iIncrementalStartValue == 0 || iIncrementalStep == 0)

    87         {

    88         aProgress = KOperationDone;

    89         iDbIncremental.Close();

    90         return ETrue;

    91         }

    92 

    93     aProgress = TReal32((iIncrementalStartValue - iIncrementalStep)) /

    94         iIncrementalStartValue;

    95 

    96     return EFalse;

    97     }

    98 

    99 //  End of File