cbs/CbsServer/ServerSrc/CCbsDiskSpaceMonitor.cpp
changeset 46 2fa1fa551b0b
parent 42 35488577e233
child 48 78df25012fda
equal deleted inserted replaced
42:35488577e233 46:2fa1fa551b0b
     1 /*
       
     2 * Copyright (c) 2004 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:  This module contains the implementation of CCbsDiskSpaceMonitor class 
       
    15 *                member functions.    
       
    16 *
       
    17 */
       
    18 
       
    19 
       
    20 // INCLUDE FILES
       
    21 #include <e32property.h>
       
    22 #include "CCbsDiskSpaceMonitor.h"
       
    23 #include <UikonInternalPSKeys.h>    // KPSUidUikon, KUikFFSFreeLevel
       
    24 #include "CCbsDbImp.H"
       
    25 #include "CbsLogger.h"
       
    26 
       
    27 // CONSTANTS
       
    28 
       
    29 // Value to receive from critical level notification for "OK"
       
    30 const TInt KCriticalLevelDiskOk = 0;
       
    31 
       
    32 
       
    33 // ================= MEMBER FUNCTIONS =======================
       
    34 
       
    35 // -----------------------------------------------------------------------------
       
    36 // CCbsDiskSpaceMonitor::CCbsDiskSpaceMonitor
       
    37 // C++ default constructor can NOT contain any code, that
       
    38 // might leave.
       
    39 // -----------------------------------------------------------------------------
       
    40 //
       
    41 CCbsDiskSpaceMonitor::CCbsDiskSpaceMonitor( CCbsDbImp& aDbImp )
       
    42     : CActive( EPriorityStandard ),
       
    43     iDbImp( aDbImp )
       
    44     {
       
    45     }
       
    46 
       
    47 // -----------------------------------------------------------------------------
       
    48 // CCbsDiskSpaceMonitor::ConstructL
       
    49 // Symbian 2nd phase constructor can leave.
       
    50 // -----------------------------------------------------------------------------
       
    51 //
       
    52 void CCbsDiskSpaceMonitor::ConstructL()
       
    53     {
       
    54     CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::ConstructL()");
       
    55     
       
    56     CActiveScheduler::Add( this );
       
    57     
       
    58     // Attach to disk space property
       
    59     iProperty.Attach( KPSUidUikon, KUikFFSFreeLevel );
       
    60     
       
    61     CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::ConstructL()");
       
    62     }
       
    63 
       
    64 // -----------------------------------------------------------------------------
       
    65 // CCbsDiskSpaceMonitor::NewL
       
    66 // Two-phased constructor.
       
    67 // -----------------------------------------------------------------------------
       
    68 //
       
    69 CCbsDiskSpaceMonitor* CCbsDiskSpaceMonitor::NewL( CCbsDbImp& aDbImp )
       
    70     {
       
    71     CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::NewL()");
       
    72     
       
    73     CCbsDiskSpaceMonitor* self = 
       
    74         new ( ELeave ) CCbsDiskSpaceMonitor( aDbImp );
       
    75     CleanupStack::PushL( self );
       
    76     self->ConstructL();
       
    77     CleanupStack::Pop();
       
    78     
       
    79     CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::NewL(), returning self.");
       
    80     return self;
       
    81     }
       
    82     
       
    83 // Destructor
       
    84 CCbsDiskSpaceMonitor::~CCbsDiskSpaceMonitor()
       
    85     {
       
    86     CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::~CCbsDiskSpaceMonitor()");
       
    87     Cancel();
       
    88 	iProperty.Close();
       
    89 	CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::~CCbsDiskSpaceMonitor()");
       
    90     }
       
    91 
       
    92 // -----------------------------------------------------------------------------
       
    93 // CCbsDiskSpaceMonitor::IssueRequest
       
    94 // Requests that we are notified when the system state changes.
       
    95 // (other items were commented in a header).
       
    96 // -----------------------------------------------------------------------------
       
    97 //
       
    98 void CCbsDiskSpaceMonitor::IssueRequest() 
       
    99     {
       
   100     CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::IssueRequest()");
       
   101     
       
   102     if ( !IsActive() )
       
   103         {        
       
   104         // Subscribe again
       
   105     	iProperty.Subscribe( iStatus );
       
   106 	    SetActive();
       
   107 	    CBSLOGSTRING("CBSSERVER: CCbsDiskSpaceMonitor::IssueRequest(): New Subscribe() set active.");
       
   108         }
       
   109         
       
   110     CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::IssueRequest()");
       
   111     }
       
   112 
       
   113 // -----------------------------------------------------------------------------
       
   114 // CCbsDiskSpaceMonitor::RunL
       
   115 // Becomes active when the system state changes.
       
   116 // (other items were commented in a header).
       
   117 // -----------------------------------------------------------------------------
       
   118 //
       
   119 void CCbsDiskSpaceMonitor::RunL()
       
   120     {
       
   121     CBSLOGSTRING2("CBSSERVER: >>> CCbsDiskSpaceMonitor::RunL(): iStatus: %d", iStatus.Int() );
       
   122     
       
   123     if ( iStatus == KErrNone )
       
   124         {        
       
   125         // Property updated, get new value
       
   126     	TInt state( 0 );
       
   127     	TInt error( KErrNone );
       
   128     	error = iProperty.Get( state );
       
   129     	CBSLOGSTRING2("CBSSERVER: CCbsDiskSpaceMonitor::RunL(): property.Get() error: %d", error );
       
   130     	CBSLOGSTRING2("CBSSERVER: CCbsDiskSpaceMonitor::RunL(): property.Get() state: %d", state );
       
   131     	
       
   132     	// If we received DISK_SPACE_OK, try to create the database
       
   133         // components.
       
   134         if ( state == KCriticalLevelDiskOk )
       
   135             {
       
   136             CBSLOGSTRING("CBSSERVER: CCbsDiskSpaceMonitor::RunL(): Calling CreateComponentsL()..." );
       
   137             iDbImp.CreateComponentsL();
       
   138             CBSLOGSTRING("CBSSERVER: CCbsDiskSpaceMonitor::RunL(): CreateComponentsL() finished." );
       
   139             }
       
   140         // To prevent ARMV5 compiler error
       
   141         if ( error )
       
   142             {
       
   143             error = KErrNone;
       
   144             }            
       
   145         }
       
   146     CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::RunL()");        
       
   147     }
       
   148 
       
   149 // -----------------------------------------------------------------------------
       
   150 // CCbsDiskSpaceMonitor::DoCancel
       
   151 // Cancels an outstanding Subscribe request.  
       
   152 // (other items were commented in a header).
       
   153 // -----------------------------------------------------------------------------
       
   154 //
       
   155 void CCbsDiskSpaceMonitor::DoCancel()
       
   156     {
       
   157     CBSLOGSTRING("CBSSERVER: >>> CCbsDiskSpaceMonitor::DoCancel()");
       
   158     iProperty.Cancel();  
       
   159     CBSLOGSTRING("CBSSERVER: <<< CCbsDiskSpaceMonitor::DoCancel()"); 
       
   160     }
       
   161 
       
   162 // ========================== OTHER EXPORTED FUNCTIONS =========================
       
   163 
       
   164 //  End of File