wim/WimServer/src/WimBTSapObserver.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 26 Jan 2010 15:20:08 +0200
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/*
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* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Observes the state of Bluetooth Sap. When the state is
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*               changed into connected, connection to smart card is closed and
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*               when the state is changed into not connected, initialize
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*               connection to smart card back.
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*
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*/
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// INCLUDE FILES
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#include    "WimBTSapObserver.h"
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#include    "WimServer.h"
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#include    "WimSession.h"
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#include    "WimTrace.h"
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#if defined BT_SAP_TEST_BY_CHARGER
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#include    <PSVariables.h>
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#else
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//#include    <BTSapInternalPSKeys.h>         // Property values
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#include    <BTSapDomainPSKeys.h>
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#endif // BT_SAP_TEST_BY_CHARGER
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CWimBTSapObserver::CWimBTSapObserver
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// C++ default constructor can NOT contain any code, that
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// might leave.
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// -----------------------------------------------------------------------------
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//
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CWimBTSapObserver::CWimBTSapObserver()
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    : CActive( EPriorityNormal )
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    {
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    _WIMTRACE(_L("WIM|CWimBTSapObserver::CWimBTSapObserver|Begin"));
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    CActiveScheduler::Add( this );
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    }
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// -----------------------------------------------------------------------------
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// CWimBTSapObserver::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CWimBTSapObserver::ConstructL()
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    {
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    _WIMTRACE(_L("WIM|CWimBTSapObserver::ConstructL|Begin"));
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    iWimSvr = CWimServer::Server();
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    }
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// -----------------------------------------------------------------------------
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// CWimBTSapObserver::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CWimBTSapObserver* CWimBTSapObserver::NewL()
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    {
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    _WIMTRACE(_L("WIM|CWimBTSapObserver::NewL|Begin"));
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    CWimBTSapObserver* self = new( ELeave ) CWimBTSapObserver ();
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    return self;
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    }
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// Destructor
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CWimBTSapObserver::~CWimBTSapObserver()
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    {
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    _WIMTRACE(_L("WIM|CWimBTSapObserver::~CWimBTSapObserver|Begin"));
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    Cancel();
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    iProperty.Close();
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    }
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// -----------------------------------------------------------------------------
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// CWimBTSapObserver::Start
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// Start listening publish and subscribe events
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// -----------------------------------------------------------------------------
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//
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void CWimBTSapObserver::Start()
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    {
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    _WIMTRACE(_L("WIM|CWimBTSapObserver::Start|Begin"));
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    if ( !IsActive() ) // If already active, don't activate
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        {
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        StartListening(); //Start listening
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        }    
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    }
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// -----------------------------------------------------------------------------
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// CWimBTSapObserver::StartListening
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// Start listening card status from publish and subscribe
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// -----------------------------------------------------------------------------
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//
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void CWimBTSapObserver::StartListening()
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    {
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    _WIMTRACE(_L("WIM|CWimBTSapObserver::StartListening|Begin"));
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    iStatus = KRequestPending;
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#if defined BT_SAP_TEST_BY_CHARGER
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    TInt err = iProperty.Attach( KUidSystemCategory, 
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                                 KPSUidChargerStatusValue );
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#else
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    TInt err = iProperty.Attach( KPSUidBluetoothSapConnectionState,
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                                 KBTSapConnectionState );
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#endif // BT_SAP_TEST_BY_CHARGER
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    if ( err == KErrNone )
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        {
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        iProperty.Subscribe( iStatus );
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        SetActive();
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        }
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    }
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// -----------------------------------------------------------------------------
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// CWimBTSapObserver::RunL
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// Got event from publish and subscribe
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// -----------------------------------------------------------------------------
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//
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void CWimBTSapObserver::RunL()
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    {
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    _WIMTRACE(_L("WIM|CWimBTSapObserver::RunL|Begin"));
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    //Notify on bluetooth event
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    TInt btState;
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    iProperty.Get( btState );
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    switch ( btState )
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        {
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#if defined BT_SAP_TEST_BY_CHARGER
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        case EPSChargerStatusUninitialized: // Flow through
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        case EPSChargerDisconnected:        // Flow through
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        case EPSChargerNotCharging: // Charger not charging, no actions
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#else
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        case EBTSapNotConnected:    // Flow through
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        case EBTSapConnecting:      // BT Sap not connected, no actions
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#endif // BT_SAP_TEST_BY_CHARGER
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            {
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            StartListening();
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            break;
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            }
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#if defined BT_SAP_TEST_BY_CHARGER
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        case EPSChargerConnected:
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#else
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        case EBTSapConnected:
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#endif // BT_SAP_TEST_BY_CHARGER
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            {
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            if ( CWimServer::iWimInitialized )
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                {
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                // Wim initialized, can close WIMI immediately.
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                // NOTE: Is it ok to run lengthy operations here?
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                RArray<CWimSession*> sessions;
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                TRAPD( err, iWimSvr->GetSessionsL( sessions ) );
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   164
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                if ( !err )  // Got sessions correctly
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                    {
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                    // Loop through all sessions and notify all clients that are
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                    // requesting the notification
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                    for ( TInt i( 0 ); i < sessions.Count(); i++ )
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                        {
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                        sessions[i]->NotifyComplete();
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                        }
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                    sessions.Reset();
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                    // Close WIMI
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                    WIMI_CloseDownReq();
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                    _WIMTRACE(_L("WIM | CWimSatRefreshObserver::Refresh | WIMI closed."));
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                    }
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                }
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            else
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                {
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                _WIMTRACE(_L("WIM | CWimSatRefreshObserver::Refresh | WIMI already closed."));
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                }
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            }
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        }
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    _WIMTRACE(_L("WIM|CWimBTSapObserver::RunL|End"));
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    }
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// -----------------------------------------------------------------------------
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// CWimBTSapObserver::DoCancel
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// Cancel asynchronous request
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// -----------------------------------------------------------------------------
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//
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void CWimBTSapObserver::DoCancel()
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    {
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    _WIMTRACE(_L("WIM|CWimBTSapObserver::DoCancel|Begin"));
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    iProperty.Cancel();
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     _WIMTRACE(_L("WIM|CWimBTSapObserver::DoCancel|End"));
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    }
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//  End of File