bearermanagement/mpm/src/mpmcsidwatcher.cpp
author Simon Howkins <simonh@symbian.org>
Thu, 18 Nov 2010 15:05:52 +0000
branchRCL_3
changeset 76 40780c2f3a6b
parent 17 c14618f9de99
child 71 9f263f780e41
permissions -rw-r--r--
Adjusted to avoid exports, etc, from a top-level bld.inf
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/*
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* Copyright (c) 2008-2009 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: Listen connect screen id key changes in central repository.
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*
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*/
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#include <e32base.h>
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#include <centralrepository.h>
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#include <mpmconnectscreenid.h>
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#include <featmgr.h>                     // FeatureManager
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#include "mpmcsidwatcher.h"
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#include "mpmlogger.h"
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// ---------------------------------------------------------------------------
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// Default constructor
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// ---------------------------------------------------------------------------
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//
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CMpmCsIdWatcher::CMpmCsIdWatcher()
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    : CActive( EPriorityStandard )
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    {
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    MPMLOGSTRING( "CMpmCsIdWatcher::CMpmCsIdWatcher" )
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    CActiveScheduler::Add( this );    
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    }
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// ---------------------------------------------------------------------------
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// Creates central repository object
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// ---------------------------------------------------------------------------
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//
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void CMpmCsIdWatcher::ConstructL()
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    {
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    MPMLOGSTRING( "CMpmCsIdWatcher::ConstructL" )
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    iRepository = CRepository::NewL( KMpmOccCenRepUid );
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    // Check whether user connection is supported
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    FeatureManager::InitializeLibL();
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    iUserConnectionSupported = FeatureManager::FeatureSupported( 
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                                   KFeatureIdFfConnectionOverride );
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     FeatureManager::UnInitializeLib();
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    }
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// ---------------------------------------------------------------------------
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// Creates new object
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// ---------------------------------------------------------------------------
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//
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CMpmCsIdWatcher* CMpmCsIdWatcher::NewL()
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    {
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    MPMLOGSTRING( "CMpmCsIdWatcher::NewL" )
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    CMpmCsIdWatcher* self = new( ELeave ) CMpmCsIdWatcher();
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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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// ---------------------------------------------------------------------------
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// Destructor
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// ---------------------------------------------------------------------------
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//
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CMpmCsIdWatcher::~CMpmCsIdWatcher()
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    {
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    MPMLOGSTRING( "CMpmCsIdWatcher::~CMpmCsIdWatcher" )
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    Cancel();
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    delete iRepository;
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    }
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// ---------------------------------------------------------------------------
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// Order notification from changes
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// ---------------------------------------------------------------------------
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//
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void CMpmCsIdWatcher::StartL()
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    {
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    MPMLOGSTRING( "CMpmCsIdWatcher::StartL" )
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    // Get the initial Connect screen ID from repository.
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    User::LeaveIfError( GetConnectScreenId() );
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    // Request for notifications.
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    User::LeaveIfError( RequestNotifications() );
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    }
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// ---------------------------------------------------------------------------
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// Return connect screen id
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// ---------------------------------------------------------------------------
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//
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TUint32 CMpmCsIdWatcher::ConnectScreenId() const
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    {
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    MPMLOGSTRING( "CMpmCsIdWatcher::ConnectScreenId" )
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    if ( iUserConnectionSupported )
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        {
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        // Return real value if user connection is supported
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        return iConnectScreenId;
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        }
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    else
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        {
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        // Return 0xFFFFFFFF if user connection is not supported
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        return 0xFFFFFFFF;
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        }
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    }
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// ---------------------------------------------------------------------------
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// From class CActive.
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// When there is a change in central repository key, event is received in here
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// ---------------------------------------------------------------------------
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//
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void CMpmCsIdWatcher::RunL()
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    {
17
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    MPMLOGSTRING( "CMpmCsIdWatcher::RunL" )
0
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17
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    if ( iStatus.Int() < KErrNone )
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        {
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        MPMLOGSTRING2("Status: 0x%08X", iStatus.Int())
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        iErrorCounter++;
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        if ( iErrorCounter > KMpmCsIdWatcherCenRepErrorThreshold )
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            {
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            MPMLOGSTRING2("Over %d consecutive errors, stopping notifications permanently.",
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                    KMpmCsIdWatcherCenRepErrorThreshold)
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            return;
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            }
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        // Else: Error occured but counter not expired. Proceed.
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        }
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    else
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        {
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        // Notification is received ok => Reset the counter.
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        iErrorCounter = 0;
0
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17
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        // Get value from central repository
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        GetConnectScreenId();
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        }
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    RequestNotifications();
0
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    }
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// ---------------------------------------------------------------------------
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// From class CActive.
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// Cancel outstanding request
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// ---------------------------------------------------------------------------
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//
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void CMpmCsIdWatcher::DoCancel()
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    {
17
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    MPMLOGSTRING( "CMpmCsIdWatcher::DoCancel" )
0
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    iRepository->NotifyCancel( KMpmConnectScreenId );
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    }
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17
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// ---------------------------------------------------------------------------
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// Request notifications.
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// ---------------------------------------------------------------------------
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//
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TInt CMpmCsIdWatcher::RequestNotifications()
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    {
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    MPMLOGSTRING( "CMpmCsIdWatcher::RequestNotifications" )
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    TInt err = iRepository->NotifyRequest( KMpmConnectScreenId, iStatus );
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    if ( err == KErrNone )
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        {
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        SetActive();
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        }
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    else
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        {
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        MPMLOGSTRING2( "CMpmCsIdWatcher::RequestNotifications, ERROR: %d", err )
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        }
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    return err;
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    }
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// ---------------------------------------------------------------------------
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// Get current repository key value.
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// ---------------------------------------------------------------------------
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//
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TInt CMpmCsIdWatcher::GetConnectScreenId()
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    {
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    MPMLOGSTRING( "CMpmCsIdWatcher::GetConnectScreenId" )
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    TInt err = iRepository->Get( KMpmConnectScreenId, iConnectScreenId );
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    if ( err != KErrNone )
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        {
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        MPMLOGSTRING2( "CMpmCsIdWatcher::GetConnectScreenId, ERROR: %d", err )
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        }
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    return err;
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    }