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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qsocket.h</h1>

<p>This is the verbatim text of the qsocket.h include file. It is provided only for illustration; the copyright remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** $Id$
**
** Definition of QSocket class.
**
** Created : 970521
**
** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
**
** This file is part of the network module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition licenses may use this
** file in accordance with the Qt Commercial License Agreement provided
** with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
**   information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#ifndef QSOCKET_H
#define QSOCKET_H

#ifndef QT_H
#include "qobject.h"
#include "qiodevice.h"
#include "qhostaddress.h" // int-&gt;QHostAddress conversion
#endif // QT_H

#if !defined( QT_MODULE_NETWORK ) || defined( QT_LICENSE_PROFESSIONAL ) || defined( QT_INTERNAL_NETWORK )
#define QM_EXPORT_NETWORK
#else
#define QM_EXPORT_NETWORK Q_EXPORT
#endif

#ifndef QT_NO_NETWORK
class QSocketPrivate;
class QSocketDevice;


class QM_EXPORT_NETWORK QSocket : public QObject, public QIODevice
{
    Q_OBJECT
public:
    enum Error {
	ErrConnectionRefused,
	ErrHostNotFound,
	ErrSocketRead
    };

    QSocket( QObject *parent=0, const char *name=0 );
    virtual ~QSocket();

    enum State { Idle, HostLookup, Connecting,
		 Connected, Closing,
		 Connection=Connected };
    State	 state() const;

    int		 socket() const;
    virtual void setSocket( int );

    QSocketDevice *socketDevice();
    virtual void setSocketDevice( QSocketDevice * );

#ifndef QT_NO_DNS
    virtual void connectToHost( const QString &amp;host, Q_UINT16 port );
#endif
    QString	 peerName() const;

    // Implementation of QIODevice abstract virtual functions
    bool	 open( int mode );
    void	 close();
    void	 flush();
    Offset	 size() const;
    Offset	 at() const;
    bool	 at( Offset );
    bool	 atEnd() const;

    Q_ULONG	 bytesAvailable() const;
    Q_ULONG	 waitForMore( int msecs ) const;
    Q_ULONG	 bytesToWrite() const;

    Q_LONG	 readBlock( char *data, Q_ULONG maxlen );
    Q_LONG	 writeBlock( const char *data, Q_ULONG len );
    Q_LONG	 readLine( char *data, Q_ULONG maxlen );

    int		 getch();
    int		 putch( int );
    int		 ungetch(int);

    bool	 canReadLine() const;
    virtual	 QString readLine();

    Q_UINT16	 port() const;
    Q_UINT16	 peerPort() const;
    QHostAddress address() const;
    QHostAddress peerAddress() const;

signals:
    void	 hostFound();
    void	 connected();
    void	 connectionClosed();
    void	 delayedCloseFinished();
    void	 readyRead();
    void	 bytesWritten( int nbytes );
    void	 error( int );

protected slots:
    virtual void sn_read( bool force=FALSE );
    virtual void sn_write();

private slots:
    void	tryConnecting();
    void	emitErrorConnectionRefused();

private:
    QSocketPrivate *d;

    bool	 consumeReadBuf( Q_ULONG nbytes, char * );
    bool	 consumeWriteBuf( Q_ULONG nbytes );
    bool	 scanNewline( QByteArray * = 0 );
    void	 tryConnection();
    void         setSocketIntern( int socket );

private:	// Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
    QSocket( const QSocket &amp; );
    QSocket &amp;operator=( const QSocket &amp; );
#endif
};

#endif //QT_NO_NETWORK
#endif // QSOCKET_H
</pre>
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<td>Copyright &copy; 2001 
<a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt version 3.0.2</div>
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