1 /*

     2  * Copyright (c) 2008 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:  ?Description

    15  *

    16  */

    17 

    18 #ifndef CASRVMMCHISTORY_H

    19 #define CASRVMMCHISTORY_H

    20 

    21 #include <e32base.h>

    22 

    23 // FORWARD DECLARATION

    24 

    25 class RFs;

    26 

    27 /**

    28  * MMC History.

    29  * Stores a fixed number of MMC ids. When new ID-s are inserted,

    30  * old ones are purged. Supports file persistence.

    31  */

    32 NONSHARABLE_CLASS( CCaSrvMmcHistory ): public CBase

    33     {

    34 

    35 public:

    36     // construction

    37 

    38     /**

    39      * Destructor.

    40      */

    41     virtual ~CCaSrvMmcHistory()

    42         {

    43         iMmcList.Close();

    44         }

    45 

    46     /**

    47      * Constructor.

    48      */

    49     CCaSrvMmcHistory()

    50         {

    51         }

    52 

    53 public:

    54     // new methods

    55 

    56     /**

    57      * Load from file. Safe to call if file does not exist.

    58      * @param aFs File Server Session.

    59      * @param aFname File name.

    60      */

    61     IMPORT_C void LoadL( RFs& aFs, const TDesC& aFname );

    62 

    63     /**

    64      * Save to file. Existing file overwritten.

    65      * @param aFs File Server Session.

    66      * @param aFname File name.

    67      */

    68     IMPORT_C void SaveL( RFs& aFs, const TDesC& aFname );

    69 

    70     /**

    71      * Insert new ID to first position.

    72      * If ID is already in the history, now it is moved to first

    73      * position (->latest).

    74      * If history is full, oldest ID may be dropped from history.

    75      * @param aMmc MMC ID.

    76      */

    77     IMPORT_C void InsertL( TUint aMmc );

    78 

    79     /**

    80      * Find ID in history.

    81      * @param aMmc MMC ID.

    82      * @return History index, or KErrNotFound.

    83      */

    84     IMPORT_C TInt Find( TUint aMmc ); // Find mmc in history.

    85 

    86 private:

    87     // data

    88 

    89     RArray<TUint> iMmcList; ///< ID history list. Own.

    90 

    91     };

    92 

    93 #endif // CASRVMMCHISTORY_H