source: trunk/src/qt3support/network/q3socket.h@ 448

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#ifndef Q3SOCKET_H
#define Q3SOCKET_H

#include <QtCore/qiodevice.h>
#include <QtNetwork/qhostaddress.h> // int->QHostAddress conversion

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Qt3Support)

class Q3SocketPrivate;
class Q3SocketDevice;

class Q_COMPAT_EXPORT Q3Socket : public QIODevice
{
    Q_OBJECT
public:
    enum Error {
        ErrConnectionRefused,
        ErrHostNotFound,
        ErrSocketRead
    };

    Q3Socket( QObject *parent=0, const char *name=0 );
    virtual ~Q3Socket();

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

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

    Q3SocketDevice *socketDevice();
    virtual void setSocketDevice( Q3SocketDevice * );

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

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

    qint64       bytesAvailable() const;
    Q_ULONG      waitForMore( int msecs, bool *timeout  ) const;
    Q_ULONG      waitForMore( int msecs ) const; // ### Qt 4.0: merge the two overloads
    qint64       bytesToWrite() const;
    void         clearPendingData();

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

    bool         canReadLine() const;

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

    void         setReadBufferSize( Q_ULONG );
    Q_ULONG      readBufferSize() const;

    inline bool  isSequential() const { return true; }

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

protected Q_SLOTS:
    virtual void sn_read( bool force=false );
    virtual void sn_write();

protected:
    qint64 readData(char *data, qint64 maxlen);
    qint64 writeData(const char *data, qint64 len);

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

private:
    Q3SocketPrivate *d;

    bool         consumeWriteBuf( Q_ULONG nbytes );
    void         tryConnection();
    void         setSocketIntern( int socket );

private:        // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
    Q3Socket( const Q3Socket & );
    Q3Socket &operator=( const Q3Socket & );
#endif
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // Q3SOCKET_H