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:   Shutdown watcher header file

    15 *

    16 */

    17 

    18 

    19 #ifndef _SWIDAEMON_SHUTDOWNWATHCER_H

    20 #define _SWIDAEMON_SHUTDOWNWATHCER_H

    21 

    22 #include <e32base.h>

    23 #include <e32property.h>

    24 

    25 /**

    26  *  Shutdown observer

    27  *  Gets notification when the system is going down

    28  *

    29  *  @since S60 v5.0

    30  */

    31 class MShutdownObserver

    32     {

    33 public:

    34     /**

    35      * Notification when system is shutting down

    36      */

    37     virtual void NotifyShuttingDown()=0;

    38     };

    39 

    40 /**

    41  *  Shutdown watcher

    42  *  Notifies MShutdownObserver when the system is going down

    43  *

    44  *  @since S60 v5.0

    45  */

    46 class CShutdownWatcher : public CActive

    47     {

    48 public:

    49     static CShutdownWatcher* NewL( MShutdownObserver& aObserver );

    50     ~CShutdownWatcher();

    51 

    52     /**

    53      * Starts to watch shutdown status

    54      * @return none

    55      */

    56     void Start();

    57 

    58 private:

    59     CShutdownWatcher( MShutdownObserver& aObserver );

    60     void ConstructL();

    61     void IssueRequest();

    62 

    63     // from CActive

    64     void DoCancel();

    65     void RunL();

    66 

    67 private:

    68     MShutdownObserver&  iObserver;

    69     RProperty           iProperty;

    70     };

    71 

    72 #endif //_SWIDAEMON_SHUTDOWNWATHCER_H