1 /*

     2 * Copyright (c) 2009 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 Observer

    15 *

    16 */

    17 #include <e32base.h>

    18 

    19 #include "wdselfshutdownobserver.h"

    20 #include "mdscommoninternal.h"

    21 

    22 // Print macro

    23 #ifdef _DEBUG

    24 #include <e32svr.h>

    25 #define PRINT(x) RDebug::Print x

    26 #else

    27 #define PRINT(x)

    28 #endif

    29 

    30 // ---------------------------------------------------------------------------

    31 // CWDSelfShutdownObserver::NewL()

    32 // ---------------------------------------------------------------------------

    33 //

    34 CWDSelfShutdownObserver* CWDSelfShutdownObserver::NewL( MWDSelfShutdownObserver& aObserver/*, const TUid& aKeyCategory */)

    35     { 

    36     CWDSelfShutdownObserver* self = new( ELeave )CWDSelfShutdownObserver( aObserver/*, aKeyCategory */);

    37     CleanupStack::PushL( self );

    38     self->ConstructL();

    39     CleanupStack::Pop( self );

    40     return self;

    41     }

    42 

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

    44 // CWDSelfShutdownObserver::CWDSelfShutdownObserver()

    45 // ---------------------------------------------------------------------------

    46 //

    47 CWDSelfShutdownObserver::CWDSelfShutdownObserver( MWDSelfShutdownObserver& aObserver/*, const TUid& aKeyCategory */)

    48     : CActive( CActive::EPriorityStandard ), iObserver( aObserver )/*, iKeyCategory( aKeyCategory )*/

    49     {       

    50     }

    51 

    52 // ---------------------------------------------------------------------------

    53 // CWDSelfShutdownObserver::ConstructL()

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

    55 //

    56 void CWDSelfShutdownObserver::ConstructL()

    57     {

    58     PRINT(_L("CWDSelfShutdownObserver::ConstructL()"));

    59     

    60     TInt error = RProperty::Define(KWatchdogPSShutdown, KShutdown,RProperty::EInt,KAllowAllPolicy,KPowerMgmtPolicy);

    61     RProperty::Set(KWatchdogPSShutdown,KShutdown,0);

    62 

    63     // attach to the property    

    64     User::LeaveIfError( iProperty.Attach(KWatchdogPSShutdown,KShutdown,EOwnerThread) );

    65     

    66     CActiveScheduler::Add( this );

    67     

    68     // wait for the previously attached property to be updated

    69     iProperty.Subscribe(iStatus);        

    70     

    71     SetActive();

    72     

    73     PRINT(_L("CWDSelfShutdownObserver::ConstructL() end"));

    74     }

    75 

    76 // ---------------------------------------------------------------------------

    77 // CWDSelfShutdownObserver::~CWDSelfShutdownObserver()

    78 // ---------------------------------------------------------------------------

    79 //

    80 CWDSelfShutdownObserver::~CWDSelfShutdownObserver()

    81     {

    82     PRINT(_L("CWDSelfShutdownObserver::~CWDSelfShutdownObserver()"));

    83     Cancel();

    84     iProperty.Close();

    85     PRINT(_L("CWDSelfShutdownObserver::~CWDSelfShutdownObserver() end"));

    86     }

    87 

    88 // ---------------------------------------------------------------------------

    89 // CWDSelfShutdownObserver::RunL()

    90 // ---------------------------------------------------------------------------

    91 //

    92 void CWDSelfShutdownObserver::RunL()

    93     {

    94     

    95     PRINT(_L("CWDSelfShutdownObserver::RunL()"));

    96     

    97     // resubscribe before processing new value to prevent missing updates

    98     iProperty.Subscribe(iStatus);

    99     SetActive();

   100     

   101     // retrieve the Uid of the package going to be updated

   102     TInt value = 0;

   103     const TInt err = iProperty.Get(value);

   104     User::LeaveIfError(err);

   105 

   106     // observer callback

   107     if (value)

   108         {

   109         iObserver.SelfShutdownNotification();

   110         }

   111     

   112     }

   113 

   114 TInt CWDSelfShutdownObserver::RunError( TInt /*aError*/ )

   115     {

   116     return KErrNone;

   117     }

   118 

   119 // ---------------------------------------------------------------------------

   120 // CWDSelfShutdownObserver::DoCancel()

   121 // ---------------------------------------------------------------------------

   122 //

   123 void CWDSelfShutdownObserver::DoCancel()

   124     {

   125     iProperty.Cancel();

   126     }

   127 

   128 // End of file