QAbstractSocketPrivate Class Reference

#include <qabstractsocket_p.h>

Inheritance diagram for QAbstractSocketPrivate:

Collaboration diagram for QAbstractSocketPrivate:

Public Member Functions
	QAbstractSocketPrivate (decltype(QObjectPrivateVersion) version=QObjectPrivateVersion)
virtual	~QAbstractSocketPrivate ()
void	readNotification () override
void	writeNotification () override
void	exceptionNotification () override
void	closeNotification () override
void	connectionNotification () override
void	proxyAuthenticationRequired (const QNetworkProxy &proxy, QAuthenticator *authenticator) override
virtual bool	bind (const QHostAddress &address, quint16 port, QAbstractSocket::BindMode mode)
virtual bool	canReadNotification ()
bool	canWriteNotification ()
void	canCloseNotification ()
void	_q_connectToNextAddress ()
void	_q_startConnecting (const QHostInfo &hostInfo)
void	_q_testConnection ()
void	_q_abortConnectionAttempt ()
void	resolveProxy (const QString &hostName, quint16 port)
void	resolveProxy (quint16 port)
void	resetSocketLayer ()
virtual bool	flush ()
bool	initSocketLayer (QAbstractSocket::NetworkLayerProtocol protocol)
virtual void	configureCreatedSocket ()
void	startConnectingByName (const QString &host)
void	fetchConnectionParameters ()
bool	readFromSocket ()
virtual bool	writeToSocket ()
void	emitReadyRead (int channel=0)
void	emitBytesWritten (qint64 bytes, int channel=0)
void	setError (QAbstractSocket::SocketError errorCode, const QString &errorString)
void	setErrorAndEmit (QAbstractSocket::SocketError errorCode, const QString &errorString)
Public Member Functions inherited from QIODevicePrivate
	QIODevicePrivate (decltype(QObjectPrivateVersion) version=QObjectPrivateVersion)
virtual	~QIODevicePrivate ()
virtual bool	putCharHelper (char c)
bool	isSequential () const
bool	isBufferEmpty () const
bool	allWriteBuffersEmpty () const
void	seekBuffer (qint64 newPos)
void	setCurrentReadChannel (int channel)
void	setCurrentWriteChannel (int channel)
void	setReadChannelCount (int count)
void	setWriteChannelCount (int count)
qint64	read (char *data, qint64 maxSize, bool peeking=false)
qint64	readLine (char *data, qint64 maxSize, ReadLineOption option=ReadLineOption::NullTerminated)
virtual qint64	peek (char *data, qint64 maxSize)
virtual QByteArray	peek (qint64 maxSize)
qint64	skipByReading (qint64 maxSize)
qint64	skipLine ()
void	write (const char *data, qint64 size)
bool	isWriteChunkCached (const char *data, qint64 size) const
Public Member Functions inherited from QObjectPrivate
void	ensureExtraData ()
void	setObjectNameWithoutBindings (const QString &name)
	QObjectPrivate (decltype(QObjectPrivateVersion) version=QObjectPrivateVersion)
virtual	~QObjectPrivate ()
void	deleteChildren ()
void	clearBindingStorage ()
void	setParent_helper (QObject *)
void	moveToThread_helper ()
void	setThreadData_helper (QThreadData *currentData, QThreadData *targetData, QBindingStatus *status)
QObjectList	receiverList (const char *signal) const
void	ensureConnectionData ()
void	addConnection (int signal, Connection *c)
int	signalIndex (const char *signalName, const QMetaObject **meta=nullptr) const
bool	isSignalConnected (uint signalIdx, bool checkDeclarative=true) const
bool	maybeSignalConnected (uint signalIndex) const
bool	isDeclarativeSignalConnected (uint signalIdx) const
void	connectNotify (const QMetaMethod &signal)
void	disconnectNotify (const QMetaMethod &signal)
void	reinitBindingStorageAfterThreadMove ()
virtual std::string	flagsForDumping () const
virtual void	writeToDebugStream (QDebug &) const
QtPrivate::QPropertyAdaptorSlotObject *	getPropertyAdaptorSlotObject (const QMetaProperty &property)
Public Member Functions inherited from QObjectData
	QObjectData ()=default
virtual	~QObjectData ()=0
const QMetaObject *	dynamicMetaObject () const
Public Member Functions inherited from QAbstractSocketEngineReceiver
virtual	~QAbstractSocketEngineReceiver ()

Static Public Member Functions
static void	pauseSocketNotifiers (QAbstractSocket *)
static void	resumeSocketNotifiers (QAbstractSocket *)
static QAbstractSocketEngine *	getSocketEngine (QAbstractSocket *)
Static Public Member Functions inherited from QObjectPrivate
static bool	removeConnection (Connection *c)
static QObjectPrivate *	get (QObject *o)
static const QObjectPrivate *	get (const QObject *o)
template<typename Func1, typename Func2>
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiverPrivate, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)
template<typename Func1, typename Func2>
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiverPrivate, Func2 slot)
static QMetaObject::Connection	connectImpl (const QObject *sender, int signal_index, const QObject *receiver, void **slot, QtPrivate::QSlotObjectBase *slotObj, int type, const int *types, const QMetaObject *senderMetaObject)
static QMetaObject::Connection	connect (const QObject *sender, int signal_index, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)
static QMetaObject::Connection	connect (const QObject *sender, int signal_index, const QObject *receiver, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)
static bool	disconnect (const QObject *sender, int signal_index, void **slot)
static bool	disconnect (const QObject *sender, int signal_index, const QObject *receiver, void **slot)

Public Attributes
bool	emittedReadyRead = false
bool	emittedBytesWritten = false
bool	abortCalled = false
bool	pendingClose = false
QAbstractSocket::PauseModes	pauseMode = QAbstractSocket::PauseNever
QString	hostName
quint16	port = 0
QHostAddress	host
QList< QHostAddress >	addresses
quint16	localPort = 0
quint16	peerPort = 0
QHostAddress	localAddress
QHostAddress	peerAddress
QString	peerName
QAbstractSocketEngine *	socketEngine = nullptr
qintptr	cachedSocketDescriptor = -1
QNetworkProxy	proxy
QNetworkProxy	proxyInUse
QString	protocolTag
qint64	readBufferMaxSize = 0
bool	isBuffered = false
bool	hasPendingData = false
bool	hasPendingDatagram = false
QTimer *	connectTimer = nullptr
int	hostLookupId = -1
QAbstractSocket::SocketType	socketType = QAbstractSocket::UnknownSocketType
QAbstractSocket::SocketState	state = QAbstractSocket::UnconnectedState
QAbstractSocket::SocketError	socketError = QAbstractSocket::UnknownSocketError
QAbstractSocket::NetworkLayerProtocol	preferredNetworkLayerProtocol
bool	prePauseReadSocketNotifierState = false
bool	prePauseWriteSocketNotifierState = false
bool	prePauseExceptionSocketNotifierState = false
Public Attributes inherited from QIODevicePrivate
qint64	pos = 0
qint64	devicePos = 0
qint64	transactionPos = 0
QRingBufferRef	buffer
QRingBufferRef	writeBuffer
const QByteArray *	currentWriteChunk = nullptr
int	readChannelCount = 0
int	writeChannelCount = 0
int	currentReadChannel = 0
int	currentWriteChannel = 0
int	readBufferChunkSize = QIODEVICE_BUFFERSIZE
int	writeBufferChunkSize = 0
QVarLengthArray< QRingBuffer, 2 >	readBuffers
QVarLengthArray< QRingBuffer, 1 >	writeBuffers
QString	errorString
QIODevice::OpenMode	openMode = QIODevice::NotOpen
bool	transactionStarted = false
bool	baseReadLineDataCalled = false
AccessMode	accessMode = Unset
Public Attributes inherited from QObjectPrivate
ExtraData *	extraData
QAtomicPointer< QThreadData >	threadData
QAtomicPointer< ConnectionData >	connections
union {
QObject *   currentChildBeingDeleted
QAbstractDeclarativeData *   declarativeData
};
QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount
Public Attributes inherited from QObjectData
QObject *	q_ptr
QObject *	parent
QObjectList	children
uint	isWidget: 1
uint	blockSig: 1
uint	wasDeleted: 1
uint	isDeletingChildren: 1
uint	sendChildEvents: 1
uint	receiveChildEvents: 1
uint	isWindow: 1
uint	deleteLaterCalled: 1
uint	isQuickItem: 1
uint	willBeWidget: 1
uint	wasWidget: 1
uint	receiveParentEvents: 1
uint	unused: 20
QAtomicInt	postedEvents
QDynamicMetaObjectData *	metaObject
QBindingStorage	bindingStorage

Additional Inherited Members
Public Types inherited from QIODevicePrivate
enum class	ReadLineOption { NotNullTerminated , NullTerminated }
enum	AccessMode : quint8 { Unset , Sequential , RandomAccess }
Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)
using	ConnectionDataPointer = QExplicitlySharedDataPointer<ConnectionData>

Detailed Description

Definition at line 31 of file qabstractsocket_p.h.

Constructor & Destructor Documentation

QAbstractSocketPrivate()

QAbstractSocketPrivate::QAbstractSocketPrivate

(

decltype(QObjectPrivateVersion)

version = QObjectPrivateVersion

)

Constructs a QAbstractSocketPrivate. Initializes all members.

Definition at line 496 of file qabstractsocket.cpp.

~QAbstractSocketPrivate()

QAbstractSocketPrivate::~QAbstractSocketPrivate ( )

virtual

Destructs the QAbstractSocket. If the socket layer is open, it will be reset.

Definition at line 507 of file qabstractsocket.cpp.

Member Function Documentation

_q_abortConnectionAttempt()

void QAbstractSocketPrivate::_q_abortConnectionAttempt

(

)

This function is called after a certain number of seconds has passed while waiting for a connection. It simply tests the connection, and continues to the next address if the connection failed.

Definition at line 1123 of file qabstractsocket.cpp.

References _q_connectToNextAddress().

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_q_connectToNextAddress()

void QAbstractSocketPrivate::_q_connectToNextAddress

(

)

Called by a queued or direct connection from _q_startConnecting() or _q_testConnection(), this function takes the first address of the pending addresses list and tries to connect to it. If the connection succeeds, QAbstractSocket will emit connected(). Otherwise, errorOccurred(ConnectionRefusedError) or errorOccurred(SocketTimeoutError) is emitted.

Definition at line 997 of file qabstractsocket.cpp.

References fetchConnectionParameters().

Referenced by _q_abortConnectionAttempt(), _q_startConnecting(), and _q_testConnection().

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_q_startConnecting()

void QAbstractSocketPrivate::_q_startConnecting

(

const QHostInfo &

hostInfo

)

Slot connected to QHostInfo::lookupHost() in connectToHost(). This function starts the process of connecting to any number of candidate IP addresses for the host, if it was found. Calls _q_connectToNextAddress().

Definition at line 925 of file qabstractsocket.cpp.

References _q_connectToNextAddress(), and hostLookupId.

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_q_testConnection()

void QAbstractSocketPrivate::_q_testConnection

(

)

Tests if a connection has been established. If it has, connected() is emitted. Otherwise, _q_connectToNextAddress() is invoked.

Definition at line 1087 of file qabstractsocket.cpp.

References _q_connectToNextAddress(), fetchConnectionParameters(), and pendingClose.

Referenced by connectionNotification().

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bind()

bool QAbstractSocketPrivate::bind ( const QHostAddress & address, quint16 port, QAbstractSocket::BindMode mode )

virtual

Reimplemented in QSslSocketPrivate.

Definition at line 1503 of file qabstractsocket.cpp.

canCloseNotification()

void QAbstractSocketPrivate::canCloseNotification

(

)

Slot connected to the close socket notifier. It's called when the socket is closed.

Definition at line 674 of file qabstractsocket.cpp.

References emitReadyRead(), isBuffered, and readFromSocket().

Referenced by closeNotification().

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canReadNotification()

bool QAbstractSocketPrivate::canReadNotification ( )

virtual

Slot connected to the read socket notifier. This slot is called when new data is available for reading, or when the socket has been closed. Handles recursive calls.

Reimplemented in QSctpSocketPrivate.

Definition at line 606 of file qabstractsocket.cpp.

References emitReadyRead(), hasPendingData, hasPendingDatagram, isBuffered, and readFromSocket().

Referenced by readNotification().

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canWriteNotification()

bool QAbstractSocketPrivate::canWriteNotification

(

)

Slot connected to the write socket notifier. It's called during a delayed connect or when the socket is ready for writing.

Definition at line 718 of file qabstractsocket.cpp.

References writeToSocket().

Referenced by writeNotification().

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closeNotification()

void QAbstractSocketPrivate::closeNotification ( )

inlineoverridevirtual

Implements QAbstractSocketEngineReceiver.

Definition at line 42 of file qabstractsocket_p.h.

References canCloseNotification().

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configureCreatedSocket()

void QAbstractSocketPrivate::configureCreatedSocket ( )

virtual

Reimplemented in QSctpSocketPrivate.

Definition at line 590 of file qabstractsocket.cpp.

Referenced by initSocketLayer().

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connectionNotification()

void QAbstractSocketPrivate::connectionNotification ( )

overridevirtual

Slot connected to a notification of connection status change. Either we finished connecting or we failed to connect.

Implements QAbstractSocketEngineReceiver.

Definition at line 732 of file qabstractsocket.cpp.

References _q_testConnection().

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emitBytesWritten()

void QAbstractSocketPrivate::emitBytesWritten	(	qint64	bytes,
		int	channel = 0 )

Emits bytesWritten(), protecting against recursion.

Definition at line 1233 of file qabstractsocket.cpp.

References emittedBytesWritten.

emitReadyRead()

void QAbstractSocketPrivate::emitReadyRead

(

int

channel = 0

)

Emits readyRead(), protecting against recursion.

Definition at line 1216 of file qabstractsocket.cpp.

References emittedReadyRead.

Referenced by canCloseNotification(), and canReadNotification().

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exceptionNotification()

void QAbstractSocketPrivate::exceptionNotification ( )

inlineoverridevirtual

Implements QAbstractSocketEngineReceiver.

Definition at line 41 of file qabstractsocket_p.h.

fetchConnectionParameters()

void QAbstractSocketPrivate::fetchConnectionParameters

(

)

Sets up the internal state after the connection has succeeded.

Definition at line 1250 of file qabstractsocket.cpp.

Referenced by _q_connectToNextAddress(), _q_testConnection(), and startConnectingByName().

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flush()

bool QAbstractSocketPrivate::flush ( )

virtual

Writes pending data in the write buffers to the socket. The function writes as much as it can without blocking. If any data was written, this function returns true; otherwise false is returned.

Reimplemented in QSslSocketPrivate.

Definition at line 817 of file qabstractsocket.cpp.

References writeToSocket().

Referenced by testing.tools.encode_pdf_filter._SinkPdfStream::close().

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getSocketEngine()

QAbstractSocketEngine * QAbstractSocketPrivate::getSocketEngine ( QAbstractSocket * socket )

static

Definition at line 1355 of file qabstractsocket.cpp.

initSocketLayer()

bool QAbstractSocketPrivate::initSocketLayer

(

QAbstractSocket::NetworkLayerProtocol

protocol

)

Initializes the socket layer to by of type type, using the network layer protocol protocol. Resets the socket layer first if it's already initialized. Sets up the socket notifiers.

Definition at line 539 of file qabstractsocket.cpp.

References configureCreatedSocket(), and resetSocketLayer().

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pauseSocketNotifiers()

void QAbstractSocketPrivate::pauseSocketNotifiers ( QAbstractSocket * socket )

static

Definition at line 1305 of file qabstractsocket.cpp.

proxyAuthenticationRequired()

void QAbstractSocketPrivate::proxyAuthenticationRequired ( const QNetworkProxy & proxy, QAuthenticator * authenticator )

inlineoverridevirtual

Implements QAbstractSocketEngineReceiver.

Definition at line 45 of file qabstractsocket_p.h.

readFromSocket()

bool QAbstractSocketPrivate::readFromSocket

(

)

Reads data from the socket layer into the read buffer. Returns true on success; otherwise false.

Definition at line 1150 of file qabstractsocket.cpp.

References resetSocketLayer().

Referenced by canCloseNotification(), and canReadNotification().

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readNotification()

void QAbstractSocketPrivate::readNotification ( )

inlineoverridevirtual

Implements QAbstractSocketEngineReceiver.

Definition at line 39 of file qabstractsocket_p.h.

References canReadNotification().

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resetSocketLayer()

void QAbstractSocketPrivate::resetSocketLayer

(

)

Resets the socket layer and deletes any socket notifiers.

Definition at line 515 of file qabstractsocket.cpp.

References hasPendingData.

Referenced by initSocketLayer(), and readFromSocket().

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resolveProxy() [1/2]

void QAbstractSocketPrivate::resolveProxy	(	const QString &	hostname,
		quint16	port )

Resolve the proxy to its final value.

Definition at line 832 of file qabstractsocket.cpp.

resolveProxy() [2/2]

void QAbstractSocketPrivate::resolveProxy ( quint16 port )

inline

Definition at line 93 of file qabstractsocket_p.h.

resumeSocketNotifiers()

void QAbstractSocketPrivate::resumeSocketNotifiers ( QAbstractSocket * socket )

static

Definition at line 1335 of file qabstractsocket.cpp.

setError()

void QAbstractSocketPrivate::setError	(	QAbstractSocket::SocketError	errorCode,
		const QString &	errStr )

Sets the socket error state to errorCode and errorString.

Definition at line 1365 of file qabstractsocket.cpp.

setErrorAndEmit()

void QAbstractSocketPrivate::setErrorAndEmit	(	QAbstractSocket::SocketError	errorCode,
		const QString &	errorString )

Sets the socket error state to errorCode and errorString, and emits the QAbstractSocket::errorOccurred() signal.

Definition at line 1378 of file qabstractsocket.cpp.

startConnectingByName()

void QAbstractSocketPrivate::startConnectingByName

(

const QString &

host

)

Starts the connection to host, like _q_startConnecting below, but without hostname resolution.

Definition at line 881 of file qabstractsocket.cpp.

References fetchConnectionParameters().

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writeNotification()

void QAbstractSocketPrivate::writeNotification ( )

inlineoverridevirtual

Implements QAbstractSocketEngineReceiver.

Definition at line 40 of file qabstractsocket_p.h.

References canWriteNotification().

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writeToSocket()

bool QAbstractSocketPrivate::writeToSocket ( )

virtual

Writes one pending data block in the write buffer to the socket.

It is usually invoked by canWriteNotification after one or more calls to write().

Emits bytesWritten().

Reimplemented in QSctpSocketPrivate.

Definition at line 753 of file qabstractsocket.cpp.

Referenced by canWriteNotification(), and flush().

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Member Data Documentation

abortCalled

bool QAbstractSocketPrivate::abortCalled = false

Definition at line 66 of file qabstractsocket_p.h.

addresses

QList<QHostAddress> QAbstractSocketPrivate::addresses

Definition at line 74 of file qabstractsocket_p.h.

cachedSocketDescriptor

qintptr QAbstractSocketPrivate::cachedSocketDescriptor = -1

Definition at line 83 of file qabstractsocket_p.h.

connectTimer

QTimer* QAbstractSocketPrivate::connectTimer = nullptr

Definition at line 115 of file qabstractsocket_p.h.

emittedBytesWritten

bool QAbstractSocketPrivate::emittedBytesWritten = false

Definition at line 64 of file qabstractsocket_p.h.

Referenced by emitBytesWritten().

emittedReadyRead

bool QAbstractSocketPrivate::emittedReadyRead = false

Definition at line 63 of file qabstractsocket_p.h.

Referenced by emitReadyRead().

hasPendingData

bool QAbstractSocketPrivate::hasPendingData = false

Definition at line 112 of file qabstractsocket_p.h.

Referenced by canReadNotification(), and resetSocketLayer().

hasPendingDatagram

bool QAbstractSocketPrivate::hasPendingDatagram = false

Definition at line 113 of file qabstractsocket_p.h.

Referenced by canReadNotification().

host

QHostAddress QAbstractSocketPrivate::host

Definition at line 73 of file qabstractsocket_p.h.

hostLookupId

int QAbstractSocketPrivate::hostLookupId = -1

Definition at line 117 of file qabstractsocket_p.h.

Referenced by _q_startConnecting().

hostName

QString QAbstractSocketPrivate::hostName

Definition at line 71 of file qabstractsocket_p.h.

isBuffered

bool QAbstractSocketPrivate::isBuffered = false

Definition at line 111 of file qabstractsocket_p.h.

Referenced by canCloseNotification(), and canReadNotification().

localAddress

QHostAddress QAbstractSocketPrivate::localAddress

Definition at line 78 of file qabstractsocket_p.h.

localPort

quint16 QAbstractSocketPrivate::localPort = 0

Definition at line 76 of file qabstractsocket_p.h.

pauseMode

QAbstractSocket::PauseModes QAbstractSocketPrivate::pauseMode = QAbstractSocket::PauseNever

Definition at line 69 of file qabstractsocket_p.h.

peerAddress

QHostAddress QAbstractSocketPrivate::peerAddress

Definition at line 79 of file qabstractsocket_p.h.

peerName

QString QAbstractSocketPrivate::peerName

Definition at line 80 of file qabstractsocket_p.h.

peerPort

quint16 QAbstractSocketPrivate::peerPort = 0

Definition at line 77 of file qabstractsocket_p.h.

pendingClose

bool QAbstractSocketPrivate::pendingClose = false

Definition at line 67 of file qabstractsocket_p.h.

Referenced by _q_testConnection().

port

quint16 QAbstractSocketPrivate::port = 0

Definition at line 72 of file qabstractsocket_p.h.

preferredNetworkLayerProtocol

QAbstractSocket::NetworkLayerProtocol QAbstractSocketPrivate::preferredNetworkLayerProtocol

Initial value:

=
            QAbstractSocket::UnknownNetworkLayerProtocol

Definition at line 125 of file qabstractsocket_p.h.

prePauseExceptionSocketNotifierState

bool QAbstractSocketPrivate::prePauseExceptionSocketNotifierState = false

Definition at line 130 of file qabstractsocket_p.h.

prePauseReadSocketNotifierState

bool QAbstractSocketPrivate::prePauseReadSocketNotifierState = false

Definition at line 128 of file qabstractsocket_p.h.

prePauseWriteSocketNotifierState

bool QAbstractSocketPrivate::prePauseWriteSocketNotifierState = false

Definition at line 129 of file qabstractsocket_p.h.

protocolTag

QString QAbstractSocketPrivate::protocolTag

Definition at line 88 of file qabstractsocket_p.h.

proxy

QNetworkProxy QAbstractSocketPrivate::proxy

Definition at line 86 of file qabstractsocket_p.h.

proxyInUse

QNetworkProxy QAbstractSocketPrivate::proxyInUse

Definition at line 87 of file qabstractsocket_p.h.

readBufferMaxSize

qint64 QAbstractSocketPrivate::readBufferMaxSize = 0

Definition at line 110 of file qabstractsocket_p.h.

socketEngine

QAbstractSocketEngine* QAbstractSocketPrivate::socketEngine = nullptr

Definition at line 82 of file qabstractsocket_p.h.

socketError

QAbstractSocket::SocketError QAbstractSocketPrivate::socketError = QAbstractSocket::UnknownSocketError

Definition at line 123 of file qabstractsocket_p.h.

socketType

QAbstractSocket::SocketType QAbstractSocketPrivate::socketType = QAbstractSocket::UnknownSocketType

Definition at line 119 of file qabstractsocket_p.h.

state

QAbstractSocket::SocketState QAbstractSocketPrivate::state = QAbstractSocket::UnconnectedState

Definition at line 120 of file qabstractsocket_p.h.

---

The documentation for this class was generated from the following files:

• qtbase/src/network/socket/qabstractsocket_p.h (3e1dffd5ddfeeb19f33abca4e3087211401126f3)
• qtbase/src/network/socket/qabstractsocket.cpp (3e1dffd5ddfeeb19f33abca4e3087211401126f3)