resourcemgmt/vibractrl/src/vibratimer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 00:53:00 +0200
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permissions -rw-r--r--
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/*
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* Copyright (c) 2003 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:  Timer class for superviving Vibrating time
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*
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*/
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// INCLUDE FILES
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#include "vibratimer.h"
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#include "vibractrl.h" //TVibraCtrlPanic
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CVibraTimer::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CVibraTimer* CVibraTimer::NewL(MVibraTimerCallback* aCallback, TInt aMaxVibTime)
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    {
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    CVibraTimer* p = new (ELeave) CVibraTimer(aCallback, aMaxVibTime);
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    CleanupStack::PushL(p);
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    p->ConstructL();//base call
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    CleanupStack::Pop(); // p
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    return p;
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    }
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// -----------------------------------------------------------------------------
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// CVibraTimer::CVibraTimer(MVibraTimerCallback* aCallback)
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// Constructor with callback class as a parameter.
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// -----------------------------------------------------------------------------
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//
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CVibraTimer::CVibraTimer(MVibraTimerCallback* aCallback, TInt aMaxVibTime)
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:CTimer(EPriorityHigh), 
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iCallback(aCallback),
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iMaximumVibraTimeMs(aMaxVibTime)
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    {
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    __ASSERT_ALWAYS(aCallback != NULL, User::Invariant());
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    }
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// -----------------------------------------------------------------------------
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// CVibraTimer::~CVibraTimer
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// Destructor.
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// -----------------------------------------------------------------------------
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//
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CVibraTimer::~CVibraTimer()
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    {
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    }
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// -----------------------------------------------------------------------------
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// CVibraTimer::Set(TInt aIntervalInMilliSecs)
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// Start the timer to complete after the specified number of microseconds.
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// If the duration is zero, then timer is set to predefined maximum value.
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// -----------------------------------------------------------------------------
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//
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TInt CVibraTimer::Set(TInt aIntervalInMilliSecs)
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    {
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    __ASSERT_ALWAYS(CActiveScheduler::Current()!= NULL, User::Invariant());
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    if (!IsAdded())
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        {
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        CActiveScheduler::Add(this);
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        }
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    // If the timer is already running, cancel it... 
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    if (IsActive())
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        {
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        Cancel();
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        }
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    // And set the new timer... 
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    // Convert to uS first -- which is, after all, why this method really exists...
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    if ((0 == aIntervalInMilliSecs) || (aIntervalInMilliSecs > iMaximumVibraTimeMs))
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        {
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        After(iMaximumVibraTimeMs * 1000);
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        }
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    else
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        {    
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        After(aIntervalInMilliSecs * 1000);
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        }
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    return KErrNone;
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    }
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// -----------------------------------------------------------------------------
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// CVibraTimer::RunL
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// RunL() function will be run after the specified system time expires,
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// i.e. time is set by After() method,
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// -----------------------------------------------------------------------------
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void CVibraTimer::RunL()
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    {
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    __ASSERT_ALWAYS(iCallback != NULL, User::Invariant());
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    iCallback->TimerFired();
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    }
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//  End of File