1 /*

     2 * Copyright (c) 2002 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: 

    15 *     CAlwaysOnlineDiskSpaceObserver declaration file

    16 *

    17 *

    18 */

    19 

    20 

    21 #ifndef ALWAYSONLINEDISKSPACEOBSERVER_H

    22 #define ALWAYSONLINEDISKSPACEOBSERVER_H

    23 

    24 //  INCLUDES

    25 #include <e32base.h>

    26 #include <f32file.h>

    27 

    28 // FORWARD DECLARATIONS

    29 class CAlwaysOnlineManager;

    30 

    31 // CLASS DECLARATION

    32 

    33 /**

    34 * CAlwaysOnlineDiskSpaceObserver

    35 */

    36 class CAlwaysOnlineDiskSpaceObserver : public CActive

    37     {

    38     public:  // Constructors and destructor

    39         

    40         /**

    41         * Two-phased constructor.

    42         *

    43         * @param aManager A pointer to CAlwaysOnlineManager

    44         * @param aFs A reference to file session

    45         */

    46         static CAlwaysOnlineDiskSpaceObserver* NewL( CAlwaysOnlineManager* aManager, 

    47         											CMsvSession& aSession );

    48         

    49         /**

    50         * Destructor.

    51         */

    52         virtual ~CAlwaysOnlineDiskSpaceObserver();

    53 

    54     public: // New functions

    55 

    56         /**

    57         *

    58         * @param aLimit The trigger limit in bytes

    59         */

    60         void SetLimitAndActivateL();

    61 

    62     private:

    63 

    64         /**

    65         * Private C++ constructor.

    66         *

    67         * @param aManager A pointer to CAlwaysOnlineManager

    68         * @param aFs A reference to file session

    69         */

    70         CAlwaysOnlineDiskSpaceObserver( CAlwaysOnlineManager* aManager, CMsvSession& aSession );

    71 

    72     private:

    73 

    74         /**

    75         * From CActive

    76         */

    77         void RunL();

    78 

    79         /**

    80         * From CActive

    81         */

    82         void DoCancel();

    83         

    84         /**

    85 		* Function to handle error during running the operation

    86 		* @since Series60 2.6

    87 		* @return KErrNone, when error has been handled

    88 		*/

    89 		virtual TInt RunError( TInt aError );

    90 		

    91     private: // New Functions

    92     

    93         /**

    94         * Updates current disk limit

    95         * @since Series60 3.0

    96         */

    97         void HandleLimitChange();

    98 

    99     private: // Data

   100 

   101         CAlwaysOnlineManager*   iWatcher;

   102         CAlwaysOnlineManager&   iManager;

   103         CMsvSession&            iSession;

   104         TUint                   iNewLimit;

   105         TUint                   iCurrentLimit;

   106         

   107     };

   108 

   109 #endif      // 

   110             

   111 // End of File