Inheritance diagram for QUnixSocketPrivate:

Public Types
enum	{ CausedAbort = 0x70000000 }

Public Slots
void	readActivated ()

qint64	writeActivated ()

Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. More...

Signals
void	bytesWritten (qint64)

void	readyRead ()

Signals inherited from QObject
void	destroyed (QObject *=0)
	This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...

Public Functions
unsigned int	ancillaryBufferCapacity ()

void	flushAncillary ()

	QUnixSocketPrivate (QUnixSocket *_me)

virtual void	timerEvent (QTimerEvent *)
	This event handler can be reimplemented in a subclass to receive timer events for the object. More...

	~QUnixSocketPrivate ()

Public Functions inherited from QObject
bool	blockSignals (bool b)
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...

const QObjectList &	children () const
	Returns a list of child objects. More...

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

bool	disconnect (const char signal=0, const QObject receiver=0, const char *member=0)

bool	disconnect (const QObject receiver, const char member=0)

void	dumpObjectInfo ()
	Dumps information about signal connections, etc. More...

void	dumpObjectTree ()
	Dumps a tree of children to the debug output. More...

QList< QByteArray >	dynamicPropertyNames () const
	Returns the names of all properties that were dynamically added to the object using setProperty(). More...

virtual bool	event (QEvent *)
	This virtual function receives events to an object and should return true if the event e was recognized and processed. More...

virtual bool	eventFilter (QObject , QEvent )
	Filters events if this object has been installed as an event filter for the watched object. More...

template<typename T >
T	findChild (const QString &aName=QString()) const
	Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...

template<typename T >
QList< T >	findChildren (const QString &aName=QString()) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...

template<typename T >
QList< T >	findChildren (const QRegExp &re) const

bool	inherits (const char *classname) const
	Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...

void	installEventFilter (QObject *)
	Installs an event filter filterObj on this object. More...

bool	isWidgetType () const
	Returns true if the object is a widget; otherwise returns false. More...

void	killTimer (int id)
	Kills the timer with timer identifier, id. More...

virtual const QMetaObject *	metaObject () const
	Returns a pointer to the meta-object of this object. More...

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children. More...

QString	objectName () const

QObject *	parent () const
	Returns a pointer to the parent object. More...

QVariant	property (const char *name) const
	Returns the value of the object's name property. More...

Q_INVOKABLE	QObject (QObject *parent=0)
	Constructs an object with parent object parent. More...

void	removeEventFilter (QObject *)
	Removes an event filter object obj from this object. More...

void	setObjectName (const QString &name)

void	setParent (QObject *)
	Makes the object a child of parent. More...

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value. More...

void	setUserData (uint id, QObjectUserData *data)

bool	signalsBlocked () const
	Returns true if signals are blocked; otherwise returns false. More...

int	startTimer (int interval)
	Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...

QThread *	thread () const
	Returns the thread in which the object lives. More...

QObjectUserData *	userData (uint id) const

virtual	~QObject ()
	Destroys the object, deleting all its child objects. More...

Public Variables
QByteArray	address

char *	ancillaryBuffer

unsigned int	ancillaryBufferCount

int	closingTimer

char *	dataBuffer

unsigned int	dataBufferCapacity

unsigned int	dataBufferLength

QUnixSocket::SocketError	error

int	fd

QUnixSocket *	me

::msghdr	message

bool	messageValid

QSocketNotifier *	readNotifier

QUnixSocket::SocketState	state

QSocketNotifier *	writeNotifier

QQueue< QUnixSocketMessage >	writeQueue

unsigned int	writeQueueBytes

Additional Inherited Members
Static Public Functions inherited from QObject
static bool	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...

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

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	Disconnects signal in object sender from method in object receiver. More...

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

static uint	registerUserData ()

static QString	tr (const char sourceText, const char comment=0, int n=-1)

static QString	trUtf8 (const char sourceText, const char comment=0, int n=-1)

Static Public Variables inherited from QObject
static const QMetaObject	staticMetaObject
	This variable stores the meta-object for the class. More...

Protected Functions inherited from QObject
virtual void	childEvent (QChildEvent *)
	This event handler can be reimplemented in a subclass to receive child events. More...

virtual void	connectNotify (const char *signal)
	This virtual function is called when something has been connected to signal in this object. More...

virtual void	customEvent (QEvent *)
	This event handler can be reimplemented in a subclass to receive custom events. More...

virtual void	disconnectNotify (const char *signal)
	This virtual function is called when something has been disconnected from signal in this object. More...

	QObject (QObjectPrivate &dd, QObject *parent=0)

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal. More...

QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...

int	senderSignalIndex () const

Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Static Protected Variables inherited from QObject
static const QMetaObject	staticQtMetaObject

Related Functions inherited from QObject
T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

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

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QRegExp &regExp)()

T *	qobject_cast (QObject *object)

	QObjectList

void *	qt_find_obj_child (QObject parent, const char type, const QString &name)
	Returns a pointer to the object named name that inherits type and with a given parent. More...

Detailed Description

Definition at line 801 of file qunixsocket.cpp.

Enumerations

◆ anonymous enum

anonymous enum

Enumerator
CausedAbort

Definition at line 822 of file qunixsocket.cpp.

822 { CausedAbort = 0x70000000 };

QUnixSocketPrivate::CausedAbort

Definition: qunixsocket.cpp:822

Constructors and Destructors

◆ QUnixSocketPrivate()

QUnixSocketPrivate::QUnixSocketPrivate ( QUnixSocket * _me )

inline

Definition at line 804 of file qunixsocket.cpp.

     : me(_me), fd(-1), readNotifier(0), writeNotifier(0),
       state(QUnixSocket::UnconnectedState), error(QUnixSocket::NoError),
       writeQueueBytes(0), messageValid(false), dataBuffer(0),
       dataBufferLength(0), dataBufferCapacity(0), ancillaryBuffer(0),
       ancillaryBufferCount(0), closingTimer(0) {
           QObject::connect(this, SIGNAL(readyRead()), me, SIGNAL(readyRead()));
           QObject::connect(this, SIGNAL(bytesWritten(qint64)),
                            me, SIGNAL(bytesWritten(qint64)));
       }

◆ ~QUnixSocketPrivate()

QUnixSocketPrivate::~QUnixSocketPrivate ( )

inline

Definition at line 814 of file qunixsocket.cpp.

     {
         if(dataBuffer)
             delete [] dataBuffer;
         if(ancillaryBuffer)
             delete [] ancillaryBuffer;
     }

Functions

◆ ancillaryBufferCapacity()

unsigned int QUnixSocketPrivate::ancillaryBufferCapacity ( )

inline

Definition at line 865 of file qunixsocket.cpp.

     {
         return CMSG_SPACE(sizeof(::ucred)) + CMSG_SPACE(sizeof(int) * ancillaryBufferCount);
     }

◆ bytesWritten

void QUnixSocketPrivate::bytesWritten ( qint64 )

signal

◆ flushAncillary()

void QUnixSocketPrivate::flushAncillary ( )

inline

Definition at line 839 of file qunixsocket.cpp.

Referenced by QUnixSocket::abort(), and QUnixSocket::readData().

     {
         if(!messageValid) return;
         ::cmsghdr * h = (::cmsghdr *)CMSG_FIRSTHDR(&(message));
         while(h) {
 
             if(SCM_RIGHTS == h->cmsg_type) {
                 int * fds = (int *)CMSG_DATA(h);
                 int numFds = (h->cmsg_len - CMSG_LEN(0)) / sizeof(int);
 
                 for(int ii = 0; ii < numFds; ++ii)
                     QT_CLOSE(fds[ii]);
             }
 
             h = (::cmsghdr *)CMSG_NXTHDR(&(message), h);
         }
 
         messageValid = false;
     }

◆ readActivated

void QUnixSocketPrivate::readActivated ( )

slot

Definition at line 1773 of file qunixsocket.cpp.

Referenced by QUnixSocket::waitForReadyRead().

 {
 #ifdef QUNIXSOCKET_DEBUG
     qDebug() << "QUnixSocket: readActivated";
 #endif
     readNotifier->setEnabled(false);
 
     ::iovec vec;
     vec.iov_base = dataBuffer;
     vec.iov_len = dataBufferCapacity;
 
     bzero(&message, sizeof(::msghdr));
     message.msg_iov = &vec;
     message.msg_iovlen = 1;
     message.msg_controllen = ancillaryBufferCapacity();
     message.msg_control = ancillaryBuffer;
 
     int flags = 0;
 #ifdef MSG_CMSG_CLOEXEC
     flags = MSG_CMSG_CLOEXEC;
 #endif
 
     int recvrv = ::recvmsg(fd, &message, flags);
 #ifdef QUNIXSOCKET_DEBUG
     qDebug() << "QUnixSocket: Received message (" << recvrv << ')';
 #endif
     if(-1 == recvrv) {
 #ifdef QUNIXSOCKET_DEBUG
         qDebug() << "QUnixSocket: Unable to receive data ("
                  << ::strerror(errno) << ')';
 #endif
         error = (QUnixSocket::SocketError)(QUnixSocket::ReadFailure |
                                            CausedAbort);
         me->abort();
     } else if(0 == recvrv) {
         me->abort();
     } else {
         Q_ASSERT(recvrv);
         Q_ASSERT((unsigned)recvrv <= dataBufferCapacity);
         dataBufferLength = recvrv;
         messageValid = true;
 
 #ifdef QUNIXSOCKET_DEBUG
         qDebug() << "QUnixSocket: readyRead() " << dataBufferLength;
 #endif
         emit readyRead();
     }
 }

◆ readyRead

void QUnixSocketPrivate::readyRead ( )

signal

◆ timerEvent()

virtual void QUnixSocketPrivate::timerEvent ( QTimerEvent * event )

inlinevirtual

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 875 of file qunixsocket.cpp.

     {
         me->abort();
         killTimer(closingTimer);
         closingTimer = 0;
     }

◆ writeActivated

qint64 QUnixSocketPrivate::writeActivated ( )

slot

Definition at line 1648 of file qunixsocket.cpp.

Referenced by QUnixSocket::flush(), and QUnixSocket::waitForBytesWritten().

 {
     writeNotifier->setEnabled(false);
 
     QUnixSocketMessage & m = writeQueue.head();
     const QList<QUnixSocketRights> & a = m.rights();
 
     //
     // Construct the message
     //
     ::iovec vec;
     if ( !m.d->vec ) // message does not already have an iovec
     {
         vec.iov_base = (void *)m.bytes().constData();
         vec.iov_len = m.bytes().size();
     }
 
     // Allocate the control buffer
     ::msghdr sendmessage;
     ::bzero(&sendmessage, sizeof(::msghdr));
     if ( m.d->vec )
     {
         sendmessage.msg_iov = m.d->vec;
         sendmessage.msg_iovlen = m.d->iovecLen;
     }
     else
     {
         sendmessage.msg_iov = &vec;
         sendmessage.msg_iovlen = 1;
     }
     unsigned int required = CMSG_SPACE(sizeof(::ucred)) +
                             a.size() * CMSG_SPACE(sizeof(int));
     sendmessage.msg_control = new char[required];
     ::bzero(sendmessage.msg_control, required);
     sendmessage.msg_controllen = required;
 
     // Create ancillary buffer
     ::cmsghdr * h = CMSG_FIRSTHDR(&sendmessage);
 
     if(m.d->state & QUnixSocketMessagePrivate::Credential) {
         h->cmsg_len = CMSG_LEN(sizeof(::ucred));
         h->cmsg_level = SOL_SOCKET;
         h->cmsg_type = SCM_CREDENTIALS;
         ((::ucred *)CMSG_DATA(h))->pid = m.d->pid;
         ((::ucred *)CMSG_DATA(h))->gid = m.d->gid;
         ((::ucred *)CMSG_DATA(h))->uid = m.d->uid;
         h = CMSG_NXTHDR(&sendmessage, h);
     } else {
         sendmessage.msg_controllen -= CMSG_SPACE(sizeof(::ucred));
     }
 
     for(int ii = 0; ii < a.count(); ++ii) {
         const QUnixSocketRights & r = a.at(ii);
 
         if(r.isValid()) {
             h->cmsg_len = CMSG_LEN(sizeof(int));
             h->cmsg_level = SOL_SOCKET;
             h->cmsg_type = SCM_RIGHTS;
             *((int *)CMSG_DATA(h)) = r.peekFd();
             h = CMSG_NXTHDR(&sendmessage, h);
         } else {
             sendmessage.msg_controllen -= CMSG_SPACE(sizeof(int));
         }
     }
 
 #ifdef QUNIXSOCKET_DEBUG
     qDebug() << "QUnixSocket: Transmitting message (length" << m.d->size() << ')';
 #endif
     ::ssize_t s = ::sendmsg(fd, &sendmessage, MSG_DONTWAIT | MSG_NOSIGNAL);
 #ifdef QUNIXSOCKET_DEBUG
     qDebug() << "QUnixSocket: Transmitted message (" << s << ')';
 #endif
 
     if(-1 == s) {
         if(EAGAIN == errno || EWOULDBLOCK == errno || EINTR == errno) {
             writeNotifier->setEnabled(true);
         } else if(EPIPE == errno) {
 #ifdef QUNIXSOCKET_DEBUG
             qDebug() << "QUnixSocket: Remote side disconnected during transmit "
                         "(" << ::strerror(errno) << ')';
 #endif
             me->abort();
         } else {
 #ifdef QUNIXSOCKET_DEBUG
             qDebug() << "QUnixSocket: Unable to transmit data ("
                      << ::strerror(errno) << ')';
 #endif
             error = (QUnixSocket::SocketError)(QUnixSocket::WriteFailure |
                     CausedAbort);
             me->abort();
         }
     } else if(s != m.d->size()) {
 
         // A partial transmission
         writeNotifier->setEnabled(true);
         delete [] (char *)sendmessage.msg_control;
         m.d->rights = QList<QUnixSocketRights>();
         m.d->removeBytes( s );
         writeQueueBytes -= s;
         emit bytesWritten(s);
         return s;
 
     } else {
 
         // Success!
         writeQueue.dequeue();
         Q_ASSERT(writeQueueBytes >= (unsigned)s);
         writeQueueBytes -= s;
         emit bytesWritten(s);
 
     }
 
     delete [] (char *)sendmessage.msg_control;
     if(-1 != s && !writeQueue.isEmpty())
         return writeActivated();
     else if(QUnixSocket::ClosingState == me->state() && writeQueue.isEmpty())
         me->abort();
 
     if((-1 == s) && (EAGAIN == errno || EWOULDBLOCK == errno || EINTR == errno))
         // Return zero bytes written to indicate retry may be required
         return 0;
     else
         return s;
 }