--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/applayerprotocols/ftpengine/inc/PICHNL.H	Tue Feb 02 01:09:52 2010 +0200
@@ -0,0 +1,165 @@
+/**
+* Copyright (c) 1998-2009 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:
+* FTP protocol engine
+* Author:	Philippe Gabriel
+* Implements objet controling the PI channel of the FTP protocol
+* Model the PI Channel as an FSM
+* Implements objet controling the PI channel of the FTP protocol
+* Model the PI Channel as an FSM
+* The FSM has 7 states:
+* Idle, Connecting, Disconnecting, Connected, Sending, Parsing
+* ParsingSending
+* Transitions between states are triggered by PI methods and events
+* coming from ESOCK
+* 
+*
+*/
+
+
+
+/**
+ @file PICHNL.CPP
+ @internalComponent
+*/
+
+#if !defined(__PICHNL_H__)
+#define __PICHNL_H__
+#include "DEBUG.H"
+#include "FTPDEF.H"
+#include <e32base.h>
+#include <in_sock.h>
+
+//////////////////////////////////////////////////////////////
+// Definitions
+//////////////////////////////////////////////////////////////
+class CFtpProtocol;
+class MPIChannelNotifier
+/**
+@internalComponent
+*/
+	{
+public:
+/**
+Operation completion return codes.
+*/ 
+	enum TPiOperationCompletion 
+		{
+		EPiConnectComplete=0, 
+		EPiDisconnectComplete,
+		EPiSendComplete,	
+		EPiOpCancelComplete
+		};
+/**
+Error status
+*/
+	enum TPiOperationError 
+		{
+		EPiConnectFailed=0,
+		EPiConnectionReset,
+		EPiDisconnectFailed,
+		EPiSendFailed,
+		EPiCancelFailed
+		};
+public:
+		/** Notify of normal completion of an operation */
+		virtual void PIChannelOperationCompletion(const TPiOperationCompletion)=0;
+		/** Notify of error performing an operation */
+		virtual void PIChannelOperationError(const TPiOperationError)=0;
+		/** Notify of reception  */
+		virtual void PIChannelRcvNotification(void)=0;
+	};
+
+class CPIChannel;
+ 
+NONSHARABLE_CLASS(CPISocketRead) : public CActive
+/**
+Active object waiting for incoming data
+@internalComponent
+*/
+	{
+public:
+	static CPISocketRead* NewL(MPIChannelNotifier* aNotifier,
+								CPIChannel*	aPIChannel);
+	void ConstructL();
+	/** CActive */
+	void DoCancel(); 
+	/** CActive */
+	void RunL();	
+	void IssueRead(TDes8& aBuffer);
+	void SetSocket(RSocket* aSocket){iSocket = aSocket;}
+	
+protected:
+	CPISocketRead(MPIChannelNotifier*,CPIChannel*);
+
+private:
+	RSocket* iSocket;
+	MPIChannelNotifier* iNotifier;
+	TSockXfrLength iRcvLen;
+	CPIChannel*	iPIChannel;
+	};
+
+ 
+NONSHARABLE_CLASS(CPIChannel) : public CActive
+/**
+PI Channel
+@internalComponent
+*/
+	{
+friend class CPISocketRead;
+public:
+
+	CPIChannel(MPIChannelNotifier*);
+	~CPIChannel();
+	static CPIChannel* NewL(MPIChannelNotifier*,RSocketServ&);
+	/** Command interface */
+	/** Connect PI socket */
+	TBool Connect(TSockAddr& aNetAddr); 
+	void GetLocalAddress(TInetAddr& aLocalAddr); 
+	/** Disconnect PI socket */
+	void Disconnect(void); 
+	/** Returns state of DTP Channel */
+	TBool Busy(void); 
+	/** Send a command on the PI Channel */
+	void SendCommand(TDes8& aCommand,TUint aSomeFlags=0,TBool aSendCRLF=TRUE); 
+	/** Fetch the reply sent by the server */
+	void GetNextAnswer(TDes8&	aBuffer);
+protected:
+	void RunL();
+    void DoCancel(void);
+private:
+	enum TState
+		{
+		EPIChannelIdle,EPIChannelConnecting,EPIChannelDisconnecting,
+		EPIChannelConnected,EPIChannelSending
+		};
+	enum TPanic 
+		{
+		EPIPanicChannelConnected = -1,
+		EPIPanicOutOfState = -2,
+		EPIPanicChannelNotConnected = -3
+		};
+	void ConstructL(RSocketServ& aSockServ);
+	/** The state of the FSM */
+	TState iPIChannelState; 
+	/** A socket server to be used for all socket operations */
+	RSocketServ iSockServ;	
+	RSocket iPiSocket;
+	/** Last code sent by the FTP server */
+	TUint32	iPIServerCode;	
+	/** Active object receiving data */
+	CPISocketRead *iReceiver; 
+	MPIChannelNotifier* iNotifier;
+	};
+#endif // __PICHNL_H__