tcpiputils/dhcp/include/DHCPIP6MsgSender.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 26 Jan 2010 15:23:49 +0200
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// Copyright (c) 2004-2009 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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// DHCP IP6 Message sender header file
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// 
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//
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/**
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 @file DHCPIP6MsgSender.h
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*/
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#ifndef DHCPIP6MSGSENDER_H
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#define DHCPIP6MSGSENDER_H
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#include "MsgSender.h"
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const TInt KIP6RndMin = -KMicrosecondsInSecs / 1000;
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const TInt KIP6RndMax = KMicrosecondsInSecs / 1000;
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const TInt KIP6MaxSecs = 0xFF;
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class CDHCPIP6MessageSender : public CMessageSender
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	{
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public:
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	CDHCPIP6MessageSender( MMSListener* aMMSListener, RSocket& aSocket, TTime *aTaskStart, const TUint aFamily);
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   void SetListener( MMSListener* aMMSListener );
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   MMSListener* EventListener() const;
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   void SetMaxRetryTimeout( TInt aSeconds );
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   void SetMaxRetryCount( TInt aCount );
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   void SetMaxRetryDuration( TInt aSeconds );
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   void SetInitialRetryTimeout( TInt aSeconds );
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   void SetFirstSendDelay( TInt aSeconds );
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protected:
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   virtual TBool SendingContinues() const;
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   virtual TBool CalculateDelay();
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protected:
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   TDhcpRnd iXid;
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   //the following values are stored in microsecods
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   TInt iInitialRetryTimeout;  //initial timeout between two subsequent retransmission
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   TInt iMaxRetryTimeout;  //max timeout between two subsequent retransmission
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   TInt iMaxRetryCount;    //upper limit of the number of times to retransmit the message
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   TInt iMaxRetryDuration; //upper limit of the time to retransmit the message
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                           //if iMaxRetryDuration == MAX_INT than the retransmission ends
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                           //when RT > MRT || RC > MRC
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   TInt iFirstSendDelay;
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	};
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inline CDHCPIP6MessageSender::CDHCPIP6MessageSender( MMSListener* aMMSListener, RSocket& aSocket, TTime *aTaskStartedAtCopy, const TUint aFamily) :
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      CMessageSender( aMMSListener, aSocket, aTaskStartedAtCopy, aFamily ),
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      iMaxRetryTimeout( static_cast<TInt>(KWaitForResponseTime) ),
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      iMaxRetryCount( INT_MAX ),
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      iMaxRetryDuration( INT_MAX )
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      {
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      }
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#endif