1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // DHCP IP6 Message sender header file

    15 // 

    16 //

    17 

    18 /**

    19  @file DHCPIP6MsgSender.h

    20 */

    21 

    22 #ifndef DHCPIP6MSGSENDER_H

    23 #define DHCPIP6MSGSENDER_H

    24 

    25 #include "MsgSender.h"

    26 

    27 const TInt KIP6RndMin = -KMicrosecondsInSecs / 1000;

    28 const TInt KIP6RndMax = KMicrosecondsInSecs / 1000;

    29 const TInt KIP6MaxSecs = 0xFF;

    30 

    31 class CDHCPIP6MessageSender : public CMessageSender

    32 	{

    33 public:

    34 	CDHCPIP6MessageSender( MMSListener* aMMSListener, RSocket& aSocket, TTime *aTaskStart, const TUint aFamily);

    35 

    36    void SetListener( MMSListener* aMMSListener );

    37    MMSListener* EventListener() const;

    38    void SetMaxRetryTimeout( TInt aSeconds );

    39    void SetMaxRetryCount( TInt aCount );

    40    void SetMaxRetryDuration( TInt aSeconds );

    41    void SetInitialRetryTimeout( TInt aSeconds );

    42    void SetFirstSendDelay( TInt aSeconds );

    43 

    44 protected:

    45    virtual TBool SendingContinues() const;

    46    virtual TBool CalculateDelay();

    47 

    48 protected:

    49    TDhcpRnd iXid;

    50    //the following values are stored in microsecods

    51    TInt iInitialRetryTimeout;  //initial timeout between two subsequent retransmission

    52    TInt iMaxRetryTimeout;  //max timeout between two subsequent retransmission

    53    TInt iMaxRetryCount;    //upper limit of the number of times to retransmit the message

    54    TInt iMaxRetryDuration; //upper limit of the time to retransmit the message

    55                            //if iMaxRetryDuration == MAX_INT than the retransmission ends

    56                            //when RT > MRT || RC > MRC

    57    TInt iFirstSendDelay;

    58 	};

    59 

    60 inline CDHCPIP6MessageSender::CDHCPIP6MessageSender( MMSListener* aMMSListener, RSocket& aSocket, TTime *aTaskStartedAtCopy, const TUint aFamily) :

    61       CMessageSender( aMMSListener, aSocket, aTaskStartedAtCopy, aFamily ),

    62       iMaxRetryTimeout( static_cast<TInt>(KWaitForResponseTime) ),

    63       iMaxRetryCount( INT_MAX ),

    64       iMaxRetryDuration( INT_MAX )

    65       {

    66       }

    67 

    68 #endif