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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QABSTRACTSOCKET_H
#define QABSTRACTSOCKET_H
#include <QtNetwork/qtnetworkglobal.h>
#if QT_VERSION >= QT_VERSION_CHECK(7, 0, 0)
#include <QtNetwork/qabstractsocket.h>
#endif
#ifdef Q_CLANG_QDOC
#include <QtNetwork/qhostaddress.h>
#endif
#include <QtCore/qiodevice.h>
#include <QtCore/qobject.h>
#ifndef QT_NO_DEBUG_STREAM
#include <QtCore/qdebug.h>
#endif
QT_BEGIN_NAMESPACE
class QHostAddress;
#ifndef QT_NO_NETWORKPROXY
class QNetworkProxy;
#endif
class QAbstractSocketPrivate;
class QAuthenticator;
class Q_NETWORK_EXPORT QAbstractSocket : public QIODevice
{
Q_OBJECT
Q_MOC_INCLUDE(<QtNetwork/qauthenticator.h>)
public:
enum SocketType {
TcpSocket,
UdpSocket,
SctpSocket,
UnknownSocketType = -1
};
Q_ENUM(SocketType)
#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
enum NetworkLayerProtocol {
IPv4Protocol,
IPv6Protocol,
AnyIPProtocol,
UnknownNetworkLayerProtocol = -1
};
Q_ENUM(NetworkLayerProtocol)
#else
// compatibility with Qt 4 to 6
using NetworkLayerProtocol = QHostAddress::NetworkLayerProtocol;
static constexpr auto IPv4Protocol = QHostAddress::IPv4Protocol;
static constexpr auto IPv6Protocol = QHostAddress::IPv6Protocol;
static constexpr auto AnyIPProtocol = QHostAddress::AnyIPProtocol;
static constexpr auto UnknownNetworkLayerProtocol = QHostAddress::UnknownNetworkLayerProtocol;
#endif
enum SocketError {
ConnectionRefusedError,
RemoteHostClosedError,
HostNotFoundError,
SocketAccessError,
SocketResourceError,
SocketTimeoutError, /* 5 */
DatagramTooLargeError,
NetworkError,
AddressInUseError,
SocketAddressNotAvailableError,
UnsupportedSocketOperationError, /* 10 */
UnfinishedSocketOperationError,
ProxyAuthenticationRequiredError,
SslHandshakeFailedError,
ProxyConnectionRefusedError,
ProxyConnectionClosedError, /* 15 */
ProxyConnectionTimeoutError,
ProxyNotFoundError,
ProxyProtocolError,
OperationError,
SslInternalError, /* 20 */
SslInvalidUserDataError,
TemporaryError,
UnknownSocketError = -1
};
Q_ENUM(SocketError)
enum SocketState {
UnconnectedState,
HostLookupState,
ConnectingState,
ConnectedState,
BoundState,
ListeningState,
ClosingState
};
Q_ENUM(SocketState)
enum SocketOption {
LowDelayOption, // TCP_NODELAY
KeepAliveOption, // SO_KEEPALIVE
MulticastTtlOption, // IP_MULTICAST_TTL
MulticastLoopbackOption, // IP_MULTICAST_LOOPBACK
TypeOfServiceOption, //IP_TOS
SendBufferSizeSocketOption, //SO_SNDBUF
ReceiveBufferSizeSocketOption, //SO_RCVBUF
PathMtuSocketOption // IP_MTU
};
Q_ENUM(SocketOption)
enum BindFlag {
DefaultForPlatform = 0x0,
ShareAddress = 0x1,
DontShareAddress = 0x2,
ReuseAddressHint = 0x4
};
Q_DECLARE_FLAGS(BindMode, BindFlag)
enum PauseMode {
PauseNever = 0x0,
PauseOnSslErrors = 0x1
};
Q_DECLARE_FLAGS(PauseModes, PauseMode)
QAbstractSocket(SocketType socketType, QObject *parent);
virtual ~QAbstractSocket();
virtual void resume(); // to continue after proxy authentication required, SSL errors etc.
PauseModes pauseMode() const;
void setPauseMode(PauseModes pauseMode);
virtual bool bind(const QHostAddress &address, quint16 port = 0,
BindMode mode = DefaultForPlatform);
#if QT_VERSION >= QT_VERSION_CHECK(7,0,0) || defined(Q_CLANG_QDOC)
bool bind(QHostAddress::SpecialAddress addr, quint16 port = 0, BindMode mode = DefaultForPlatform)
{ return bind(QHostAddress(addr), port, mode); }
bool bind(quint16 port = 0, BindMode mode = DefaultForPlatform)
{ return bind(QHostAddress::Any, port, mode); }
#else
bool bind(quint16 port = 0, BindMode mode = DefaultForPlatform);
#endif
virtual void connectToHost(const QString &hostName, quint16 port, OpenMode mode = ReadWrite, NetworkLayerProtocol protocol = AnyIPProtocol);
void connectToHost(const QHostAddress &address, quint16 port, OpenMode mode = ReadWrite);
virtual void disconnectFromHost();
bool isValid() const;
qint64 bytesAvailable() const override;
qint64 bytesToWrite() const override;
quint16 localPort() const;
QHostAddress localAddress() const;
quint16 peerPort() const;
QHostAddress peerAddress() const;
QString peerName() const;
qint64 readBufferSize() const;
virtual void setReadBufferSize(qint64 size);
void abort();
virtual qintptr socketDescriptor() const;
virtual bool setSocketDescriptor(qintptr socketDescriptor, SocketState state = ConnectedState,
OpenMode openMode = ReadWrite);
virtual void setSocketOption(QAbstractSocket::SocketOption option, const QVariant &value);
virtual QVariant socketOption(QAbstractSocket::SocketOption option);
SocketType socketType() const;
SocketState state() const;
SocketError error() const;
// from QIODevice
void close() override;
bool isSequential() const override;
bool flush();
// for synchronous access
virtual bool waitForConnected(int msecs = 30000);
bool waitForReadyRead(int msecs = 30000) override;
bool waitForBytesWritten(int msecs = 30000) override;
virtual bool waitForDisconnected(int msecs = 30000);
#ifndef QT_NO_NETWORKPROXY
void setProxy(const QNetworkProxy &networkProxy);
QNetworkProxy proxy() const;
QString protocolTag() const;
void setProtocolTag(const QString &tag);
#endif
Q_SIGNALS:
void hostFound();
void connected();
void disconnected();
void stateChanged(QAbstractSocket::SocketState);
void errorOccurred(QAbstractSocket::SocketError);
#ifndef QT_NO_NETWORKPROXY
void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator);
#endif
protected:
qint64 readData(char *data, qint64 maxlen) override;
qint64 readLineData(char *data, qint64 maxlen) override;
qint64 skipData(qint64 maxSize) override;
qint64 writeData(const char *data, qint64 len) override;
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 = nullptr);
private:
Q_DECLARE_PRIVATE(QAbstractSocket)
Q_DISABLE_COPY_MOVE(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_DECLARE_OPERATORS_FOR_FLAGS(QAbstractSocket::BindMode)
Q_DECLARE_OPERATORS_FOR_FLAGS(QAbstractSocket::PauseModes)
#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_DECL_METATYPE_EXTERN_TAGGED(QAbstractSocket::SocketState,
QAbstractSocket__SocketState, Q_NETWORK_EXPORT)
QT_DECL_METATYPE_EXTERN_TAGGED(QAbstractSocket::SocketError,
QAbstractSocket__SocketError, Q_NETWORK_EXPORT)
#endif // QABSTRACTSOCKET_H
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