#include <connection.h>

Inheritance diagram for Connection:

Collaboration diagram for Connection:

Public Types
enum	ConnectionState { WaitingForGreeting , ReadingGreeting , ReadyForUse }

enum	DataType { PlainText , Ping , Pong , Greeting , Undefined }

Public Types inherited from QAbstractSocket
enum	SocketType { TcpSocket , UdpSocket , SctpSocket , UnknownSocketType = -1 }

enum	SocketError { ConnectionRefusedError , RemoteHostClosedError , HostNotFoundError , SocketAccessError , SocketResourceError , SocketTimeoutError , DatagramTooLargeError , NetworkError , AddressInUseError , SocketAddressNotAvailableError , UnsupportedSocketOperationError , UnfinishedSocketOperationError , ProxyAuthenticationRequiredError , SslHandshakeFailedError , ProxyConnectionRefusedError , ProxyConnectionClosedError , ProxyConnectionTimeoutError , ProxyNotFoundError , ProxyProtocolError , OperationError , SslInternalError , SslInvalidUserDataError , TemporaryError , UnknownSocketError = -1 }

enum	SocketState { UnconnectedState , HostLookupState , ConnectingState , ConnectedState , BoundState , ListeningState , ClosingState }

enum	SocketOption { LowDelayOption , KeepAliveOption , MulticastTtlOption , MulticastLoopbackOption , TypeOfServiceOption , SendBufferSizeSocketOption , ReceiveBufferSizeSocketOption , PathMtuSocketOption }

enum	BindFlag { DefaultForPlatform = 0x0 , ShareAddress = 0x1 , DontShareAddress = 0x2 , ReuseAddressHint = 0x4 }

enum	PauseMode { PauseNever = 0x0 , PauseOnSslErrors = 0x1 }

using	NetworkLayerProtocol = QHostAddress::NetworkLayerProtocol

Public Types inherited from QIODeviceBase
enum	OpenModeFlag { NotOpen = 0x0000 , ReadOnly = 0x0001 , WriteOnly = 0x0002 , ReadWrite = ReadOnly \| WriteOnly , Append = 0x0004 , Truncate = 0x0008 , Text = 0x0010 , Unbuffered = 0x0020 , NewOnly = 0x0040 , ExistingOnly = 0x0080 }

Signals
void	readyForUse ()

void	newMessage (const QString &from, const QString &message)

Signals inherited from QAbstractSocket
void	hostFound ()

void	connected ()

void	disconnected ()

void	stateChanged (QAbstractSocket::SocketState)

void	errorOccurred (QAbstractSocket::SocketError)

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

Signals inherited from QIODevice
void	readyRead ()

void	channelReadyRead (int channel)

void	bytesWritten (qint64 bytes)

void	channelBytesWritten (int channel, qint64 bytes)

void	aboutToClose ()

void	readChannelFinished ()

Signals inherited from QObject
void	destroyed (QObject *=nullptr)

void	objectNameChanged (const QString &objectName, QPrivateSignal)

Public Member Functions
	Connection (QObject *parent=nullptr)

	Connection (qintptr socketDescriptor, QObject *parent=nullptr)

	~Connection ()

QString	name () const

void	setGreetingMessage (const QString &message)

bool	sendMessage (const QString &message)

Public Member Functions inherited from QTcpSocket
	QTcpSocket (QObject *parent=nullptr)

virtual	~QTcpSocket ()

Public Member Functions inherited from QAbstractSocket
	QAbstractSocket (SocketType socketType, QObject *parent)

virtual	~QAbstractSocket ()

virtual void	resume ()

PauseModes	pauseMode () const

void	setPauseMode (PauseModes pauseMode)

virtual bool	bind (const QHostAddress &address, quint16 port=0, BindMode mode=DefaultForPlatform)

bool	bind (QHostAddress::SpecialAddress addr, quint16 port=0, BindMode mode=DefaultForPlatform)

bool	bind (quint16 port=0, BindMode mode=DefaultForPlatform)

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

void	close () override

bool	isSequential () const override

bool	flush ()

virtual bool	waitForConnected (int msecs=30000)

bool	waitForReadyRead (int msecs=30000) override

bool	waitForBytesWritten (int msecs=30000) override

virtual bool	waitForDisconnected (int msecs=30000)

void	setProxy (const QNetworkProxy &networkProxy)

QNetworkProxy	proxy () const

QString	protocolTag () const

void	setProtocolTag (const QString &tag)

Public Member Functions inherited from QIODevice
	QIODevice ()

	QIODevice (QObject *parent)

virtual	~QIODevice ()

QIODeviceBase::OpenMode	openMode () const

void	setTextModeEnabled (bool enabled)

bool	isTextModeEnabled () const

bool	isOpen () const

bool	isReadable () const

bool	isWritable () const

int	readChannelCount () const

int	writeChannelCount () const

int	currentReadChannel () const

void	setCurrentReadChannel (int channel)

int	currentWriteChannel () const

void	setCurrentWriteChannel (int channel)

virtual bool	open (QIODeviceBase::OpenMode mode)

virtual qint64	pos () const

virtual qint64	size () const

virtual bool	seek (qint64 pos)

virtual bool	atEnd () const

virtual bool	reset ()

qint64	read (char *data, qint64 maxlen)

QByteArray	read (qint64 maxlen)

QByteArray	readAll ()

qint64	readLine (char *data, qint64 maxlen)

QByteArray	readLine (qint64 maxlen=0)

virtual bool	canReadLine () const

void	startTransaction ()

void	commitTransaction ()

void	rollbackTransaction ()

bool	isTransactionStarted () const

qint64	write (const char *data, qint64 len)

qint64	write (const char *data)

qint64	write (const QByteArray &data)

qint64	peek (char *data, qint64 maxlen)

QByteArray	peek (qint64 maxlen)

qint64	skip (qint64 maxSize)

void	ungetChar (char c)

bool	putChar (char c)

bool	getChar (char *c)

QString	errorString () const

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)

virtual	~QObject ()

virtual bool	event (QEvent *event)

virtual bool	eventFilter (QObject watched, QEvent event)

QString	objectName () const

void	setObjectName (const QString &name)

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const

bool	isWindowType () const

bool	signalsBlocked () const noexcept

bool	blockSignals (bool b) noexcept

QThread *	thread () const

void	moveToThread (QThread *thread)

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)

template<typename T >
T	findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

template<typename T >
QList< T >	findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

const QObjectList &	children () const

void	setParent (QObject *parent)

void	installEventFilter (QObject *filterObj)

void	removeEventFilter (QObject *obj)

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const

void	dumpObjectInfo () const

bool	setProperty (const char *name, const QVariant &value)

QVariant	property (const char *name) const

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const

bool	inherits (const char *classname) const

Protected Member Functions
void	timerEvent (QTimerEvent *timerEvent) override

Protected Member Functions inherited from QTcpSocket
	QTcpSocket (QTcpSocketPrivate &dd, QObject *parent=nullptr)

	QTcpSocket (QAbstractSocket::SocketType socketType, QTcpSocketPrivate &dd, QObject *parent=nullptr)

Protected Member Functions inherited from QAbstractSocket
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)

Protected Member Functions inherited from QIODevice
	QIODevice (QIODevicePrivate &dd, QObject *parent=nullptr)

void	setOpenMode (QIODeviceBase::OpenMode openMode)

void	setErrorString (const QString &errorString)

Protected Member Functions inherited from QObject
QObject *	sender () const

int	senderSignalIndex () const

int	receivers (const char *signal) const

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	childEvent (QChildEvent *event)

virtual void	customEvent (QEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Protected Member Functions inherited from QIODeviceBase
	~QIODeviceBase ()=default

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

static QMetaObject::Connection ::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot)

static QMetaObject::Connection ::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot)

template<typename Func1 , typename Func2 >
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Static Public Attributes inherited from QAbstractSocket
static constexpr auto	IPv4Protocol = QHostAddress::IPv4Protocol

static constexpr auto	IPv6Protocol = QHostAddress::IPv6Protocol

static constexpr auto	AnyIPProtocol = QHostAddress::AnyIPProtocol

static constexpr auto	UnknownNetworkLayerProtocol = QHostAddress::UnknownNetworkLayerProtocol

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Properties inherited from QObject
QString	objectName
	the name of this object More...

Related Functions inherited from QObject
template< class T > T	qobject_cast (const QObject *object)

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList

Detailed Description

Definition at line 64 of file connection.h.

Member Enumeration Documentation

◆ ConnectionState

enum Connection::ConnectionState

Enumerator
WaitingForGreeting
ReadingGreeting
ReadyForUse

Definition at line 69 of file connection.h.

◆ DataType

enum Connection::DataType

Enumerator
PlainText
Ping
Pong
Greeting
Undefined

Definition at line 74 of file connection.h.

Constructor & Destructor Documentation

◆ Connection() [1/2]

Connection::Connection ( QObject * parent = nullptr )

Definition at line 74 of file connection.cpp.

Here is the call graph for this function:

◆ Connection() [2/2]

Connection::Connection	(	qintptr	socketDescriptor,
		QObject *	parent = `nullptr`
	)

Definition at line 95 of file connection.cpp.

Here is the call graph for this function:

◆ ~Connection()

Connection::~Connection ( )

Definition at line 102 of file connection.cpp.

Here is the call graph for this function:

Member Function Documentation

◆ name()

QString Connection::name ( ) const

Definition at line 111 of file connection.cpp.

Here is the caller graph for this function:

◆ newMessage

void Connection::newMessage	(	const QString &	from,
		const QString &	message
	)

signal

◆ readyForUse

void Connection::readyForUse ( )

signal

◆ sendMessage()

bool Connection::sendMessage ( const QString & message )

Definition at line 121 of file connection.cpp.

Here is the call graph for this function:

◆ setGreetingMessage()

void Connection::setGreetingMessage ( const QString & message )

Definition at line 116 of file connection.cpp.

◆ timerEvent()

void Connection::timerEvent ( QTimerEvent * event )

overrideprotectedvirtual

This event handler can be reimplemented in a subclass to receive timer events for the object.

QTimer provides a higher-level interface to the timer functionality, and also more general information about timers. The timer event is passed in the event parameter.

See also: startTimer(), killTimer(), event()

Reimplemented from QObject.

Definition at line 133 of file connection.cpp.

Here is the call graph for this function:

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

examples/network/network-chat/connection.h
examples/network/network-chat/connection.cpp

Public Types

Signals

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ ConnectionState

◆ DataType

Constructor & Destructor Documentation

◆ Connection() [1/2]

◆ Connection() [2/2]

◆ ~Connection()

Member Function Documentation

◆ name()

◆ newMessage

◆ readyForUse

◆ sendMessage()

◆ setGreetingMessage()

◆ timerEvent()