apengine/apeng/src/ActiveApDbNotifier.cpp
changeset 66 ed07dcc72692
parent 0 5a93021fdf25
equal deleted inserted replaced
64:84c6623982f6 66:ed07dcc72692
    28 // ---------------------------------------------------------
    28 // ---------------------------------------------------------
    29 //
    29 //
    30 CActiveApDbNotifier::CActiveApDbNotifier( CActiveApDb& aDb )
    30 CActiveApDbNotifier::CActiveApDbNotifier( CActiveApDb& aDb )
    31 : CActive( EPriorityStandard )
    31 : CActive( EPriorityStandard )
    32     {
    32     {
    33     iActiveDb = &aDb;
       
    34     CActiveScheduler::Add( this );
       
    35     }
    33     }
    36 
    34 
    37 // ---------------------------------------------------------
    35 // ---------------------------------------------------------
    38 // CActiveApDbNotifier::~CActiveApDbNotifier
    36 // CActiveApDbNotifier::~CActiveApDbNotifier
    39 // ---------------------------------------------------------
    37 // ---------------------------------------------------------
    40 //
    38 //
    41 CActiveApDbNotifier::~CActiveApDbNotifier()
    39 CActiveApDbNotifier::~CActiveApDbNotifier()
    42     {
    40     {
    43     Cancel();
       
    44     }
    41     }
    45 
    42 
    46 // ---------------------------------------------------------
    43 // ---------------------------------------------------------
    47 // CActiveApDbNotifier::RunL
    44 // CActiveApDbNotifier::RunL
    48 // ---------------------------------------------------------
    45 // ---------------------------------------------------------
    49 //
    46 //
    50 void CActiveApDbNotifier::RunL()
    47 void CActiveApDbNotifier::RunL()
    51     {
    48     {
    52     if ( iStatus == KErrCancel )
       
    53         {
       
    54         // Do nothing.
       
    55         }
       
    56     else
       
    57         {
       
    58         // first store status, because re-schedule will be earlier 
       
    59         // than notifying clients. Reason:
       
    60         // clients can leave but re-schedule MUST happen anyway,
       
    61         // to keep the notifier alive even if any client leaves
       
    62         TRequestStatus tempstatus( iStatus );
       
    63 
       
    64         if ( iStatus == RDbNotifier::EClose )
       
    65             {
       
    66             // Finish if the database is closed.
       
    67             NotifyChange();
       
    68             }
       
    69         else
       
    70             {
       
    71             // Reschedule automatically (as long as the database is open).
       
    72             NotifyChange();
       
    73             }
       
    74         // and now let clients handle their stuff...
       
    75         TRAP_IGNORE( iActiveDb->HandleDbEventL( tempstatus.Int() ) );
       
    76         }
       
    77     }
    49     }
    78 
    50 
    79 
    51 
    80 // ---------------------------------------------------------
    52 // ---------------------------------------------------------
    81 // CActiveApDbNotifier::DoCancel
    53 // CActiveApDbNotifier::DoCancel
    82 // ---------------------------------------------------------
    54 // ---------------------------------------------------------
    83 //
    55 //
    84 void CActiveApDbNotifier::DoCancel()
    56 void CActiveApDbNotifier::DoCancel()
    85     {
    57     {
    86     Stop();
       
    87     }
    58     }
    88 
    59 
    89 
    60 
    90 // ---------------------------------------------------------
    61 // ---------------------------------------------------------
    91 // CActiveApDbNotifier::Stop
    62 // CActiveApDbNotifier::Stop
    92 // ---------------------------------------------------------
    63 // ---------------------------------------------------------
    93 //
    64 //
    94 void CActiveApDbNotifier::Stop()
    65 void CActiveApDbNotifier::Stop()
    95     {
    66     {
    96     iActiveDb->Database()->CancelRequestNotification();
       
    97     }
    67     }
    98 
    68 
    99 // ---------------------------------------------------------
    69 // ---------------------------------------------------------
   100 // CActiveApDbNotifier::Start
    70 // CActiveApDbNotifier::Start
   101 // ---------------------------------------------------------
    71 // ---------------------------------------------------------
   102 //
    72 //
   103 void CActiveApDbNotifier::Start()
    73 void CActiveApDbNotifier::Start()
   104     {
    74     {
   105     NotifyChange();
       
   106     }
    75     }
   107 
    76 
   108 // ---------------------------------------------------------
    77 // ---------------------------------------------------------
   109 // CActiveApDbNotifier::NotifyChange
    78 // CActiveApDbNotifier::NotifyChange
   110 // ---------------------------------------------------------
    79 // ---------------------------------------------------------
   111 //
    80 //
   112 void CActiveApDbNotifier::NotifyChange()
    81 void CActiveApDbNotifier::NotifyChange()
   113     {
    82     {
   114     if ( !IsActive() )
       
   115         {
       
   116         iActiveDb->Database()->RequestNotification( iStatus );
       
   117         SetActive();
       
   118         }
       
   119     }
    83     }
   120 
    84 
   121 // End of File
    85 // End of File