telephonyprotocols/rawipnif/version1/src/Sender.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:41:59 +0200
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// Copyright (c) 2002-2009 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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// Implements the active object that controls the Write() requests. 
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// 
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//
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/**
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 @file
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*/
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#include "Sender.h"
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#include "Constants.h"
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CSender::CSender(CBcaIoController& aObserver, CBttLogger* aTheLogger)
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/**
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 * Constructor. Performs standard active object initialisation.
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 *
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 * @param aObserver Reference to the observer of this state machine
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 */
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	: CActive(EPriorityNormal), 
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	  iObserver(aObserver),
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	  iTheLogger(aTheLogger)
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	{
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	CActiveScheduler::Add(this);
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	}
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CSender::~CSender()
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/**
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 * Destructor.
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 */
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	{
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	Cancel();
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	}
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void CSender::RunL()
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/**
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 * This method checks if any error occured in the write operation.  
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 */
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	{
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	_LOG_L1C2(_L8("CSender::RunL [iStatus=%d]"), iStatus.Int());
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	if (iStatus!=KErrNone)
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		{
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		if(iStatus == KErrNoMemory)
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			{
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			_LOG_L2C1(_L8("WARNING! CSender: Write failed with KErrNoMemory"));
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			_LOG_L2C1(_L8("WARNING! CSender: Ignoring packet!!!!"));
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			// Write operation failed!! Nif will ignore this packet.
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			iObserver.SendComplete();
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			}
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		else if (iStatus == KErrNotReady)
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			{
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			_LOG_L2C1(_L8("WARNING! CSender: Write failed with KErrNotReady"));
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			_LOG_L2C1(_L8("WARNING! CSender: Ignoring packet!!!!"));
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			// Write operation failed!! Nif will ignore this packet.
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			iObserver.SendComplete();
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			}
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		else
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			{
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			_LOG_L2C1(_L8("ERROR! CSender: Write failed!!!!"));
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			// Nif will shut down
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			iObserver.Stop(iStatus.Int());
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			}
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		return;
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		}
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	else
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		{
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		// The Ip packet was sent successfuly
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		_LOG_L1C1(_L8("***** CSender: Packet Sent."));
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		iObserver.SendComplete();
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		}
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	}
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void CSender::DoCancel()
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/**
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 *	Cancel active request
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 */
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	{
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	_LOG_L1C1(_L8("CSender::DoCancel"));
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	(iObserver.Bca())->CancelWrite(); 
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	}
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void CSender::Send(RMBufChain& aPdu)
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/**
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 * Copies the specified RMBufChain into a descriptor and sends it.
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 *
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 * @param aPdu The IP packet to be sent.
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 * @return KStopSending, or KErrArgument if the packet is too large.
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 */
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	{
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	_LOG_L1C1(_L8("CSender::Send"));
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	// Copy the IP portion of the RMBufChain to the buffer.
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	iSendBuffer.SetMax();
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	aPdu.CopyOut(iSendBuffer, aPdu.First()->Length());
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#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS
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	iObserver.AddHeader(iSendBuffer);
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#endif // RAWIP_HEADER_APPENDED_TO_PACKETS
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	aPdu.Free();
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	SendBuffer(iSendBuffer);
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	}
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void CSender::SendBuffer(const TDesC8& aBuffer)
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/**
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 * Sends an IP packet, contained in the specified descriptor
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 *
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 * @param aBuffer The IP packet to send.
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 * @return Always KStopSending.
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 */
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	{
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	_LOG_L1C1(_L8("CSender::SendBuffer"));
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	// Finally, send the packet to BCA
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	(iObserver.Bca())->Write(iStatus, aBuffer);
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	SetActive();
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	}