vpnengine/ikev2lib/src/ikev2retransmittimer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 19 Aug 2010 10:54:34 +0300
branchRCL_3
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/*
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* Copyright (c) 2003-2009 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:  Timer to tricket IKE datagram resend, if do not obtain a reply
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*
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*/
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#include "ikev2retransmittimer.h"
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//The actual time out value is calculated:
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//timeout = send_attempt * KRetryTimeOutBaseMicroSeconds;
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//So the time out value increases by geometric serie,
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//not exponenially like recommended by the RFC
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static const TUint KRetryTimeOutBaseMicroSeconds = 1 * 1000000; //microseconds  
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CIkev2RetransmitTimer* CIkev2RetransmitTimer::NewL( MIkev2RetransmitTimerCallback& aCallback )
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    {
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    CIkev2RetransmitTimer* self = new (ELeave) CIkev2RetransmitTimer( aCallback );
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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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CIkev2RetransmitTimer::CIkev2RetransmitTimer( MIkev2RetransmitTimerCallback& aCallback )
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 : CTimer(EPriorityStandard),
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   iCallback(aCallback)
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    {
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	CActiveScheduler::Add(this);   
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    }
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CIkev2RetransmitTimer::~CIkev2RetransmitTimer()
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    {
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	Cancel();
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    }
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void CIkev2RetransmitTimer::IssueRequest( TUint16 aSendAttempt )
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    {
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	TTimeIntervalMicroSeconds32 interval = (aSendAttempt * KRetryTimeOutBaseMicroSeconds);	
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	After(interval);
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    }
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void CIkev2RetransmitTimer::RunL()
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    {
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	iCallback.RetransmitRequest();
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    }
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