tstaskmonitor/backstepping/src/tsbacksteppingactivation.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 23 Jun 2010 18:33:40 +0300
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/*
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* Copyright (c) 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:
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*
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*/
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#include <e32property.h>
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#include <startupdomainpskeys.h>
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#include <flogger.h>
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#include <w32std.h>
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#include "tsbacksteppingactivation.h"
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#include "tsbackstepping.h"
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 // ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CBacksteppingActivation::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CTsBacksteppingActivation* CTsBacksteppingActivation::NewL(MTsWindowGroupsMonitor &monitor)
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{
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    RDebug::Print(_L("CBacksteppingActivation::NewL"));
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    CTsBacksteppingActivation* self = new( ELeave ) CTsBacksteppingActivation(monitor);
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    self->ConstructL();
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    return self;
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}
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// -----------------------------------------------------------------------------
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// CBacksteppingWaitingIdle::CBacksteppingWaitingIdle
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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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CTsBacksteppingActivation::CTsBacksteppingActivation(MTsWindowGroupsMonitor &monitor) 
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:
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    CActive(EPriorityLow),
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    mMonitor(monitor)
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{
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    CActiveScheduler::Add(this);
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}
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// -----------------------------------------------------------------------------
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// CBacksteppingActivation::ConstructL()
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// -----------------------------------------------------------------------------
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//
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void CTsBacksteppingActivation::ConstructL() 
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{
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    User::LeaveIfError(mProperty.Attach(KPSUidStartup, KPSIdlePhase1Ok));
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    iStatus = KRequestPending;
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    SetActive();
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    TRequestStatus* status(&iStatus);
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    User::RequestComplete(status);
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}
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// -----------------------------------------------------------------------------
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// CBacksteppingActivation::~CBacksteppingActivation
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// Destructor
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// -----------------------------------------------------------------------------
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//
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CTsBacksteppingActivation::~CTsBacksteppingActivation()
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{
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    Cancel();
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    delete mEngine;
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    mProperty.Close();
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}
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// -----------------------------------------------------------------------------
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// CBacksteppingActivation::DoCancel
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// 
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// -----------------------------------------------------------------------------
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//
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void CTsBacksteppingActivation::DoCancel()
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{
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    if ( IsActive() && mProperty.Handle() ) {
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        mProperty.Cancel();
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    }
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}
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// -----------------------------------------------------------------------------
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// CBacksteppingActivation::RunL
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// 
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// -----------------------------------------------------------------------------
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//
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void CTsBacksteppingActivation::RunL()
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{
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    User::LeaveIfError(iStatus.Int());
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    TInt state(~EIdlePhase1Ok);
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    User::LeaveIfError(mProperty.Get(state));
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    if (EIdlePhase1Ok == state) {
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        if (0 == mEngine) {
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            mEngine = CTsBackstepping::NewL(mMonitor);
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        }
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    } else {
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        delete mEngine;
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        mEngine = 0;
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    }
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    Subscribe();
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}
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// -----------------------------------------------------------------------------
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// CBacksteppingActivation::RunError
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// 
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// -----------------------------------------------------------------------------
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//
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TInt CTsBacksteppingActivation::RunError(TInt error)
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{
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    if (KErrCancel != error) {
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        Subscribe();
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    }
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    return KErrNone;
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}
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// -----------------------------------------------------------------------------
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// CBacksteppingActivation::Subscribe
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// 
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// -----------------------------------------------------------------------------
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//
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void CTsBacksteppingActivation::Subscribe()
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{
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    mProperty.Subscribe(iStatus);
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    SetActive();
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}
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// end of file