os/security/authorisation/userpromptservice/database/test/dumpupsdb/source/activewaiter.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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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 the License "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 "activewaiter.h"
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CActiveWaiter::CActiveWaiter()
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	: CActive(CActive::EPriorityStandard)
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	{
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	CActiveScheduler::Add(this);
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	}
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CActiveWaiter::~CActiveWaiter()
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	{ Cancel(); }
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void CActiveWaiter::WaitActiveL(TInt aExpectedStatus /*=KErrNone*/)
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	{ 
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	ASSERT(!iScheduler.IsStarted());
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	SetActive();
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	iScheduler.Start();
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	if(iStatus.Int() != aExpectedStatus)
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		{
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		User::Leave(iStatus.Int());
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		}
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	}
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/**
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Sets the active scheduler active and immidiately Cancels, calling the 
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supplied cancel observer during DoCancel();
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@param aCancelObserver performs and DoCancel() operations on behalf of this object
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*/
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void CActiveWaiter::SetActiveAndCancel(MActiveWaiterObserver& aCancelObserver)
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	{
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	ASSERT(!iScheduler.IsStarted());
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	ASSERT(iCancelObserver == NULL);
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	SetActive();
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	iCancelObserver = &aCancelObserver;
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	Cancel();
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	}
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/**
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Cancels the current operation, and stops the active scheduler loop,
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allowing a previous call to WaitActiveL() to return.
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@param aCancelObserver performs and DoCancel() operations on behalf of this object
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*/
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void CActiveWaiter::CancelWaitActive(MActiveWaiterObserver& aCancelObserver)
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	{ 
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	ASSERT(iScheduler.IsStarted());
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	ASSERT(iCancelObserver == NULL);
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	iCancelObserver = &aCancelObserver;
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	Cancel();
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	ASSERT(iScheduler.CanStopNow());
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	iScheduler.AsyncStop();
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	}
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void CActiveWaiter::RunL()
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	{
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	if (iScheduler.IsStarted())
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		{
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		ASSERT(iScheduler.CanStopNow());
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		iScheduler.AsyncStop();
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		}
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	}
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void CActiveWaiter::DoCancel()
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	{
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	ASSERT(iCancelObserver != NULL);
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	iCancelObserver->DoCancel();
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	iCancelObserver = NULL;
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	}