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 implementation

    15 *

    16 */

    17 

    18 

    19 #include "ShutdownWatcher.h"

    20 #include <startupdomainpskeys.h>

    21 

    22 

    23 // ======== MEMBER FUNCTIONS ========

    24 

    25 // ---------------------------------------------------------------------------

    26 // CShutdownWatcher::NewL

    27 // ---------------------------------------------------------------------------

    28 //

    29 CShutdownWatcher* CShutdownWatcher::NewL( MShutdownObserver& aObserver )

    30     {

    31     CShutdownWatcher* self = new(ELeave) CShutdownWatcher( aObserver );

    32     CleanupStack::PushL( self );

    33     self->ConstructL();

    34     CleanupStack::Pop( self );

    35     return self;

    36     }

    37 

    38 

    39 // ---------------------------------------------------------------------------

    40 // CShutdownWatcher::~CShutdownWatcher

    41 // ---------------------------------------------------------------------------

    42 //

    43 CShutdownWatcher::~CShutdownWatcher()

    44     {

    45     Cancel();

    46     iProperty.Close();

    47     }

    48 

    49 

    50 // ---------------------------------------------------------------------------

    51 // CShutdownWatcher::Start

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

    53 //

    54 void CShutdownWatcher::Start()

    55     {

    56     TInt status( 0 );

    57     TInt err = iProperty.Get( KPSUidStartup, KPSGlobalSystemState, status );

    58     if( err == KErrNone )

    59         {

    60         if( status == ESwStateShuttingDown )

    61             {

    62             iObserver.NotifyShuttingDown();

    63             return;     // that was all, system is already going down

    64             }

    65         }

    66     IssueRequest();

    67     }

    68 

    69 

    70 // ---------------------------------------------------------------------------

    71 // CShutdownWatcher::IssueRequest

    72 // ---------------------------------------------------------------------------

    73 //

    74 void CShutdownWatcher::IssueRequest()

    75     {

    76     if( !IsActive() )

    77         {

    78         iProperty.Subscribe( iStatus );

    79         SetActive();

    80         }

    81     }

    82 

    83 

    84 // ---------------------------------------------------------------------------

    85 // CShutdownWatcher::DoCancel

    86 // ---------------------------------------------------------------------------

    87 //

    88 void CShutdownWatcher::DoCancel()

    89     {

    90     iProperty.Cancel();

    91     }

    92 

    93 

    94 // ---------------------------------------------------------------------------

    95 // CShutdownWatcher::RunL()

    96 // ---------------------------------------------------------------------------

    97 //

    98 void CShutdownWatcher::RunL()

    99     {

   100     IssueRequest();

   101 

   102     TInt status( 0 );

   103     iProperty.Get( status );

   104     

   105     if( status == ESwStateShuttingDown )

   106         {

   107         iObserver.NotifyShuttingDown();

   108         Cancel();   // that was all, no other notifications needed

   109         }

   110     }

   111 

   112 

   113 // ---------------------------------------------------------------------------

   114 // CShutdownWatcher::CShutdownWatcher

   115 // ---------------------------------------------------------------------------

   116 //

   117 CShutdownWatcher::CShutdownWatcher( MShutdownObserver& aObserver )

   118     : CActive( EPriorityStandard ), iObserver( aObserver )

   119     {

   120     }

   121 

   122 

   123 // ---------------------------------------------------------------------------

   124 // CShutdownWatcher::ConstructL()

   125 // ---------------------------------------------------------------------------

   126 //

   127 void CShutdownWatcher::ConstructL()

   128     {

   129     TInt err = iProperty.Attach( KPSUidStartup, KPSGlobalSystemState );

   130     User::LeaveIfError( err );

   131 

   132     CActiveScheduler::Add( this );

   133     }

   134 

   135 

   136 // End of file