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/*
    stream.h - Kopete Groupwise Protocol

    Copyright (c) 2004 Matt Rogers <mattr@kde.org>

    Based on code copyright (c) 2004 SuSE Linux AG <http://www.suse.com>
    Based on Iris, Copyright (C) 2003  Justin Karneges

    Kopete (c) 2002-2004 by the Kopete developers <kopete-devel@kde.org>

    *************************************************************************
    *                                                                       *
    * This library is free software; you can redistribute it and/or         *
    * modify it under the terms of the GNU Lesser General Public            *
    * License as published by the Free Software Foundation; either          *
    * version 2 of the License, or (at your option) any later version.      *
    *                                                                       *
    *************************************************************************
*/

#include <tqobject.h>

#ifndef OSCAR_STREAM_H
#define OSCAR_STREAM_H

class Transfer;

class Stream : public QObject
{
	Q_OBJECT
public:
	enum Error { ErrParse, ErrProtocol, ErrStream, ErrCustom = 10 };
	enum StreamCond {
		GenericStreamError,
		Conflict,
		ConnectionTimeout,
		InternalServerError,
		InvalidFrom,
/*#		InvalidXml,  // not required*/
		PolicyViolation,
		ResourceConstraint,
		SystemShutdown
	};

	Stream(TQObject *parent=0);
	virtual ~Stream();

	virtual void close()=0;
	virtual int errorCondition() const=0;
	virtual TQString errorText() const=0;

	/**
	 * Are there any messages waiting to be read
	 */
	virtual bool transfersAvailable() const = 0;	// adapt to messages
	/**
	 * Read a message received from the server
	 */
	virtual Transfer* read() = 0;

	/**
	 * Send a message to the server
	 */
	virtual void write( Transfer *request) = 0;
	

signals:
	void connectionClosed();
	void delayedCloseFinished();
	void readyRead(); //signals that there is a transfer ready to be read
//	void stanzaWritten();
	void error(int);
};

#endif