1 /*

     2 * Copyright (c) 1020 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: shutdown monitor.

    15 */

    16 

    17 

    18 #ifndef __HS_SHUTDOWN_MONITOR__

    19 #define __HS_SHUTDOWN_MONITOR__

    20 

    21 #include <e32base.h>

    22 #include <ssm/ssmstateawaresession.h>

    23 

    24 /**

    25  * MHsShutdownMonitorObserver

    26  * 

    27  * Monitor component observer.

    28  * 

    29  * @since S60 5.2

    30  */

    31 class MHsShutdownMonitorObserver

    32     {    

    33     public:

    34         /**

    35          * Called when shutdown occurs 

    36          */

    37         virtual void SystemShutdownEvent() = 0;

    38     };

    39 

    40 /**

    41  * HsShutdownMonitor

    42  * 

    43  * Component for monitoring shutdown

    44  * 

    45  * @since S60 5.2

    46  */  

    47 class CHsShutdownMonitor : public CActive

    48     {

    49     public:

    50         /**

    51          * Create new monitor

    52          * 

    53          * @param aObserver monitor observer

    54          * @since S60 5.2     

    55          */    

    56         static CHsShutdownMonitor* NewL(

    57                 MHsShutdownMonitorObserver& aObserver );   

    58         

    59         /**

    60          * Destructor

    61          * 

    62          * @since S60 5.2     

    63          */    

    64         ~CHsShutdownMonitor();

    65     

    66         /**

    67          * Start monitor

    68          * 

    69          * @since S60 5.2

    70          */        

    71         void StartMonitor();        

    72 

    73     protected:

    74         /** 

    75          * C++ constructor

    76          *

    77          * @param aObserver     monitor observer.   

    78          * @since S60 5.2      

    79          */        

    80         CHsShutdownMonitor( MHsShutdownMonitorObserver& aObserver );    

    81 

    82         /**

    83          * Symbian 2nd phase constructor

    84          * 

    85          * @since S60 5.2

    86          */        

    87         void ConstructL();

    88 

    89     private: // From CActive

    90         /**

    91          * From CActive

    92          */        

    93         void RunL();

    94 

    95         /**

    96          * From CActive

    97          * 

    98          * @since S60 5.2

    99          */        

   100         void DoCancel(); 

   101 

   102         /**

   103          * From CActive

   104          * 

   105          * @since S60 5.2

   106          */        

   107         TInt RunError( TInt aError );

   108 

   109     private:	

   110         // watchdog observer

   111         MHsShutdownMonitorObserver& iObserver;

   112 

   113         // State aware session.

   114         RSsmStateAwareSession iSAS;

   115     };

   116 

   117 #endif // __HS_PROCESS_MONITOR__