--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/applayerprotocols/telnetengine/SRC/ACTIVEIO.CPP	Tue Feb 02 01:09:52 2010 +0200
@@ -0,0 +1,221 @@
+// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// CActiveReader & CActiveWriter
+// Contains basic Read and Write Active object definitions for Socket I/O
+// 
+//
+
+/**
+ @file
+*/
+
+#include "ACTIVEIO.H"
+#include "IOBUFFER.H"
+#include "TELFSM.H"
+#include "TELDEBUG.H"
+
+CActiveWriter::CActiveWriter() : CActive(EPriorityStandard)
+/**
+Constructor
+*/
+	{
+	CActiveScheduler::Add(this);
+	}
+
+CActiveWriter::~CActiveWriter()
+/**
+Destructor
+*/
+	{
+	__FLOG_STATIC(KTelnetLoggingCompnt(),KTelnetLoggingTag(),_L("CActiveWriter::D'Tor"));
+	Cancel();
+	}
+
+CActiveWriter* CActiveWriter::NewL(MIONotifier* aNotifier)
+	{
+	CActiveWriter* self = new(ELeave) CActiveWriter;
+	CleanupStack::PushL(self);
+	self->ConstructL(aNotifier);
+	CleanupStack::Pop();
+	return self;
+	}
+
+void CActiveWriter::ConstructL(MIONotifier* aNotifier)
+	{	
+	iNotifier = aNotifier;
+	iSocket = NULL;
+	}
+
+void CActiveWriter::SetSocket(RSocket* aSocket)
+	{
+	iSocket = aSocket;
+	}
+
+TInt CActiveWriter::IssueWrite(const TDesC8& aBuffer)
+/**
+Standard write
+*/
+	{
+	if (IsActive())
+		return KRequestPending;
+
+	iSocket->Send(aBuffer,NULL,iStatus,iXfrLength);
+	SetActive();
+	return KErrNone;
+	}
+
+TInt CActiveWriter::IssueUrgentWrite(const TDesC8& aBuffer)
+/**
+Caller wants to send data as TCP urgent
+*/
+	{
+	iSocket->SetOpt(KSoTcpNextSendUrgentData, KSolInetTcp, ETrue);
+	iSocket->Send(aBuffer,NULL,iStatus,iXfrLength);
+	SetActive();
+
+	return(KErrNone);
+	}
+
+
+void CActiveWriter::RunL()
+/**
+Write completed on the socket
+*/
+	{
+	if(iStatus != KErrNone)
+		iNotifier->WriteError(iStatus.Int());
+	else
+		iNotifier->WriteComplete();
+	}
+
+
+CActiveReader::CActiveReader() : CActive(EPriorityStandard)
+/**
+Constructor
+*/
+	{
+	CActiveScheduler::Add(this);
+	}
+
+CActiveReader::~CActiveReader()
+/**
+Destructor
+*/
+	{
+	__FLOG_STATIC(KTelnetLoggingCompnt(),KTelnetLoggingTag(),_L("CActiveReader::D'Tor"));
+	Cancel();
+	}
+
+
+CActiveReader* CActiveReader::NewL(MIONotifier* aNotifier)
+	{
+	CActiveReader* self = new(ELeave) CActiveReader;
+	CleanupStack::PushL(self);
+	self->ConstructL(aNotifier);
+	CleanupStack::Pop();
+	return self;
+	}
+
+void CActiveReader::ConstructL(MIONotifier* aNotifier)
+/**
+@internalComponent
+*/
+	{	
+	iNotifier = aNotifier;
+	iSocket = NULL;
+	iClientBuffer = NULL;
+	iRequest = ERequestNone;
+	}
+
+void CActiveReader::SetSocket(RSocket* aSocket)
+	{
+	iSocket = aSocket;
+	}
+
+TInt CActiveReader::IssueRead(TDes8& aBuffer)
+/**
+Issues read using Ioctl so urgents can be picked up
+TCP test code Test_05() demonstrates this
+*/
+	{
+	if (IsActive())
+		return KRequestPending;
+	
+	iClientBuffer = &aBuffer;
+	// Tell the RunL() to expect an Ioctl completion
+	iRequest = EIOctlRequest;
+	iflags() = KSockSelectRead | KSockSelectExcept;
+	iSocket->Ioctl(KIOctlSelect,iStatus, &iflags, KSOLSocket);
+	SetActive();
+
+	return KErrNone;
+	}
+
+TInt CActiveReader::RunError(TInt /*aError*/)
+	{
+	return KErrNone;
+	}
+
+void CActiveReader::RunL()
+/**
+Read completion
+Performed in 2 stages
+We get a completion on the Ioctl first where we test for urgent data, we set active again and
+Next we get a normal completion for the read following a call to RecvOneOrMore()
+*/
+	{
+	TInt bytesPending;
+	TInt urgentOffset;
+	TInt ret;
+	TInt urgentData;
+
+	if(iRequest == EIOctlRequest)
+		// First completion for the Ioctl
+		{
+		iSocket->GetOpt(KSoTcpRcvAtMark, KSolInetTcp,ret);
+		iSocket->GetOpt(KSOUrgentDataOffset, KSOLSocket,urgentOffset);
+		iSocket->GetOpt(KSOReadBytesPending, KSOLSocket,bytesPending);
+		urgentData = 0;
+		// Peek check for urgent data
+		if(iSocket->GetOpt(KSoTcpPeekUrgentData, KSolInetTcp,urgentData)==KErrNone)
+			{
+			// We have urgent data
+			urgentData = 0;
+			// Read the urgent data
+			iSocket->GetOpt(KSoTcpReadUrgentData, KSolInetTcp,urgentData);
+			__FLOG_STATIC1(KTelnetLoggingCompnt(),KTelnetLoggingTag(),_L("CActiveReader::RunL() Urgent Data = %X"),urgentData);
+			// Notify that we have received urgent data
+			iNotifier->Event(CProto::EEventUrgentData,urgentData);
+			}
+		// Now set to receive data
+		iSocket->RecvOneOrMore(*iClientBuffer,NULL,iStatus,iXfrLength);
+		SetActive();
+		// Completion will be normal next time
+		iRequest = EReadRequest;
+		}
+	else if(iRequest == EReadRequest)
+		{
+		// Normal read complete
+		// iClientBuffer will contain the data
+		if(iStatus.Int() == KErrNone)
+			{
+			iNotifier->ReadCompleteL();
+			}
+		else
+			{
+			iNotifier->ReadComplete(iStatus.Int());
+			}
+		}
+	}
+