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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QABSTRACTSOCKET_H
#define QABSTRACTSOCKET_H
#include <QtCore/qiodevice.h>
#include <QtCore/qobject.h>
#ifndef QT_NO_DEBUG_STREAM
#include <QtCore/qdebug.h>
#endif
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Network)
class QHostAddress;
#ifndef QT_NO_NETWORKPROXY
class QNetworkProxy;
#endif
class QAbstractSocketPrivate;
class QAuthenticator;
class Q_NETWORK_EXPORT QAbstractSocket : public QIODevice
{
Q_OBJECT
Q_ENUMS(SocketType NetworkLayerProtocol SocketError SocketState SocketOption)
public:
enum SocketType {
TcpSocket,
UdpSocket,
UnknownSocketType = -1
};
enum NetworkLayerProtocol {
IPv4Protocol,
IPv6Protocol,
UnknownNetworkLayerProtocol = -1
};
enum SocketError {
ConnectionRefusedError,
RemoteHostClosedError,
HostNotFoundError,
SocketAccessError,
SocketResourceError,
SocketTimeoutError, /* 5 */
DatagramTooLargeError,
NetworkError,
AddressInUseError,
SocketAddressNotAvailableError,
UnsupportedSocketOperationError, /* 10 */
UnfinishedSocketOperationError,
ProxyAuthenticationRequiredError,
SslHandshakeFailedError,
ProxyConnectionRefusedError,
ProxyConnectionClosedError, /* 15 */
ProxyConnectionTimeoutError,
ProxyNotFoundError,
ProxyProtocolError,
UnknownSocketError = -1
};
enum SocketState {
UnconnectedState,
HostLookupState,
ConnectingState,
ConnectedState,
BoundState,
ListeningState,
ClosingState
#ifdef QT3_SUPPORT
,
Idle = UnconnectedState,
HostLookup = HostLookupState,
Connecting = ConnectingState,
Connected = ConnectedState,
Closing = ClosingState,
Connection = ConnectedState
#endif
};
enum SocketOption {
LowDelayOption, // TCP_NODELAY
KeepAliveOption, // SO_KEEPALIVE
MulticastTtlOption, // IP_MULTICAST_TTL
MulticastLoopbackOption // IP_MULTICAST_LOOPBACK
};
QAbstractSocket(SocketType socketType, QObject *parent);
virtual ~QAbstractSocket();
// ### Qt 5: Make connectToHost() and disconnectFromHost() virtual.
void connectToHost(const QString &hostName, quint16 port, OpenMode mode = ReadWrite);
void connectToHost(const QHostAddress &address, quint16 port, OpenMode mode = ReadWrite);
void disconnectFromHost();
bool isValid() const;
qint64 bytesAvailable() const;
qint64 bytesToWrite() const;
bool canReadLine() const;
quint16 localPort() const;
QHostAddress localAddress() const;
quint16 peerPort() const;
QHostAddress peerAddress() const;
QString peerName() const;
// ### Qt 5: Make setReadBufferSize() virtual
qint64 readBufferSize() const;
void setReadBufferSize(qint64 size);
void abort();
// ### Qt 5: Make socketDescriptor() and setSocketDescriptor() virtual.
int socketDescriptor() const;
bool setSocketDescriptor(int socketDescriptor, SocketState state = ConnectedState,
OpenMode openMode = ReadWrite);
// ### Qt 5: Make virtual?
void setSocketOption(QAbstractSocket::SocketOption option, const QVariant &value);
QVariant socketOption(QAbstractSocket::SocketOption option);
SocketType socketType() const;
SocketState state() const;
SocketError error() const;
// from QIODevice
void close();
bool isSequential() const;
bool atEnd() const;
bool flush();
// for synchronous access
// ### Qt 5: Make waitForConnected() and waitForDisconnected() virtual.
bool waitForConnected(int msecs = 30000);
bool waitForReadyRead(int msecs = 30000);
bool waitForBytesWritten(int msecs = 30000);
bool waitForDisconnected(int msecs = 30000);
#ifndef QT_NO_NETWORKPROXY
void setProxy(const QNetworkProxy &networkProxy);
QNetworkProxy proxy() const;
#endif
Q_SIGNALS:
void hostFound();
void connected();
void disconnected();
void stateChanged(QAbstractSocket::SocketState);
void error(QAbstractSocket::SocketError);
#ifndef QT_NO_NETWORKPROXY
void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator);
#endif
protected Q_SLOTS:
void connectToHostImplementation(const QString &hostName, quint16 port, OpenMode mode = ReadWrite);
void disconnectFromHostImplementation();
protected:
qint64 readData(char *data, qint64 maxlen);
qint64 readLineData(char *data, qint64 maxlen);
qint64 writeData(const char *data, qint64 len);
void setSocketState(SocketState state);
void setSocketError(SocketError socketError);
void setLocalPort(quint16 port);
void setLocalAddress(const QHostAddress &address);
void setPeerPort(quint16 port);
void setPeerAddress(const QHostAddress &address);
void setPeerName(const QString &name);
QAbstractSocket(SocketType socketType, QAbstractSocketPrivate &dd, QObject *parent = 0);
private:
Q_DECLARE_PRIVATE(QAbstractSocket)
Q_DISABLE_COPY(QAbstractSocket)
Q_PRIVATE_SLOT(d_func(), void _q_connectToNextAddress())
Q_PRIVATE_SLOT(d_func(), void _q_startConnecting(const QHostInfo &))
Q_PRIVATE_SLOT(d_func(), void _q_abortConnectionAttempt())
Q_PRIVATE_SLOT(d_func(), void _q_testConnection())
Q_PRIVATE_SLOT(d_func(), void _q_forceDisconnect())
#ifdef QT3_SUPPORT
public:
enum Error {
ErrConnectionRefused = ConnectionRefusedError,
ErrHostNotFound = HostNotFoundError,
ErrSocketRead = UnknownSocketError
};
inline QT3_SUPPORT int socket() const { return socketDescriptor(); }
inline QT3_SUPPORT void setSocket(int socket) { setSocketDescriptor(socket); }
inline QT3_SUPPORT qulonglong waitForMore(int msecs, bool *timeout = 0) const
{
QAbstractSocket *that = const_cast<QAbstractSocket *>(this);
if (that->waitForReadyRead(msecs))
return qulonglong(bytesAvailable());
if (error() == SocketTimeoutError && timeout)
*timeout = true;
return 0;
}
typedef SocketState State;
Q_SIGNALS:
QT_MOC_COMPAT void connectionClosed(); // same as disconnected()
QT_MOC_COMPAT void delayedCloseFinished(); // same as disconnected()
#endif
};
#ifndef QT_NO_DEBUG_STREAM
Q_NETWORK_EXPORT QDebug operator<<(QDebug, QAbstractSocket::SocketError);
Q_NETWORK_EXPORT QDebug operator<<(QDebug, QAbstractSocket::SocketState);
#endif
QT_END_NAMESPACE
QT_END_HEADER
#endif // QABSTRACTSOCKET_H
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