QCA::QPipeEnd Class Reference

#include <QtCrypto>

Inheritance diagram for QCA::QPipeEnd:

Public Types
enum	Error { ErrorEOF , ErrorBroken }

Signals
void	bytesWritten (int bytes)
void	closed ()
void	error (QCA::QPipeEnd::Error e)
void	readyRead ()

Public Member Functions
	QPipeEnd (QObject *parent=nullptr)
int	bytesAvailable () const
int	bytesToWrite () const
void	close ()
void	enable ()
void	finalize ()
void	finalizeAndRelease ()
Q_PIPE_ID	id () const
int	idAsInt () const
bool	isValid () const
QByteArray	read (int bytes=-1)
void	release ()
void	reset ()
bool	setInheritable (bool enabled)
void	take (Q_PIPE_ID id, QPipeDevice::Type t)
QByteArray	takeBytesToWrite ()
QPipeDevice::Type	type () const
void	write (const QByteArray &a)
Public Member Functions inherited from QObject
	QObject (QObject *parent)
QBindable< QString >	bindableObjectName ()
bool	blockSignals (bool block)
const QObjectList &	children () const const
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
void	deleteLater ()
void	destroyed (QObject *obj)
bool	disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool	disconnect (const QObject *receiver, const char *method) const const
void	dumpObjectInfo () const const
void	dumpObjectTree () const const
QList< QByteArray >	dynamicPropertyNames () const const
virtual bool	event (QEvent *e)
virtual bool	eventFilter (QObject *watched, QEvent *event)
T	findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isQuickItemType () const const
bool	isWidgetType () const const
bool	isWindowType () const const
void	killTimer (int id)
virtual const QMetaObject *	metaObject () const const
void	moveToThread (QThread *targetThread)
QString	objectName () const const
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
QVariant	property (const char *name) const const
	Q_CLASSINFO (Name, Value)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_GADGET_EXPORT (EXPORT_MACRO)
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_MOC_INCLUDE Q_MOC_INCLUDE
	Q_NAMESPACE Q_NAMESPACE
	Q_NAMESPACE_EXPORT (EXPORT_MACRO)
	Q_OBJECT Q_OBJECT
	Q_PROPERTY (...)
	Q_REVISION Q_REVISION
	Q_SET_OBJECT_NAME (Object)
	Q_SIGNAL Q_SIGNAL
	Q_SIGNALS Q_SIGNALS
	Q_SLOT Q_SLOT
	Q_SLOTS Q_SLOTS
T	qobject_cast (const QObject *object)
T	qobject_cast (QObject *object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
void	removeEventFilter (QObject *obj)
void	setObjectName (const QString &name)
void	setObjectName (QAnyStringView name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	setProperty (const char *name, QVariant &&value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)
QThread *	thread () const const

Additional Inherited Members
Properties inherited from QObject
	objectName
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
bool	disconnect (const QMetaObject::Connection &connection)
bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
bool	disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
QString	tr (const char *sourceText, const char *disambiguation, int n)
Public Attributes inherited from QObject
typedef	QObjectList
Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	customEvent (QEvent *event)
virtual void	disconnectNotify (const QMetaMethod &signal)
bool	isSignalConnected (const QMetaMethod &signal) const const
int	receivers (const char *signal) const const
QObject *	sender () const const
int	senderSignalIndex () const const
virtual void	timerEvent (QTimerEvent *event)

Detailed Description

A buffered higher-level pipe end.

This is either the read end or write end of a QPipe.

Definition at line 217 of file qpipe.h.

Member Enumeration Documentation

Error

enum QCA::QPipeEnd::Error

The type of error.

Enumerator
ErrorEOF	End of file error.
ErrorBroken	Broken pipe error.

Definition at line 224 of file qpipe.h.

Constructor & Destructor Documentation

QPipeEnd()

QCA::QPipeEnd::QPipeEnd

(

QObject *

parent = nullptr

)

Standard constructor.

Parameters

parent

the parent object for this object

Member Function Documentation

bytesAvailable()

int QCA::QPipeEnd::bytesAvailable

(

)

const

Determine how many bytes are available to be read.

This only makes sense at the read end of the pipe

See also

readyRead() for a signal that can be used to determine when there are bytes available to read.

bytesToWrite()

int QCA::QPipeEnd::bytesToWrite

(

)

const

Returns the number of bytes pending to write.

This only makes sense at the write end of the pipe

See also

bytesWritten() for a signal that can be used to determine when bytes have been written

bytesWritten

void QCA::QPipeEnd::bytesWritten ( int bytes )

signal

Emitted when bytes have been written to the write end of the pipe.

Parameters

bytes

the number of bytes written

close()

void QCA::QPipeEnd::close

(

)

Close the end of the pipe.

See also

closed()

closed

void QCA::QPipeEnd::closed ( )

signal

Emitted when this end of the pipe is closed as a result of calling close()

If this is the write end of the pipe and there is data still pending to write, this signal will be emitted once all of the data has been written.

To be notified if the other end of the pipe has been closed, see error().

enable()

void QCA::QPipeEnd::enable

(

)

Enable the endpoint for the pipe.

When an endpoint is created, it is not able to be used until it is enabled.

error

void QCA::QPipeEnd::error ( QCA::QPipeEnd::Error e )

signal

Emitted when the pipe encounters an error trying to read or write, or if the other end of the pipe has been closed.

Parameters

e	the reason for error

finalize()

void QCA::QPipeEnd::finalize

(

)

Clear the contents of the pipe, and invalidate the pipe.

finalizeAndRelease()

void QCA::QPipeEnd::finalizeAndRelease

(

)

Clear the contents of the pipe, and release the pipe.

id()

Q_PIPE_ID QCA::QPipeEnd::id

(

)

const

Pipe identification.

idAsInt()

int QCA::QPipeEnd::idAsInt

(

)

const

Pipe identification.

isValid()

bool QCA::QPipeEnd::isValid

(

)

const

Determine whether the pipe end is valid.

Note

This does not mean the pipe is ready to be used - you may need to call enable() first

read()

QByteArray QCA::QPipeEnd::read

(

int

bytes = -1

)

Read bytes from the pipe.

You can only call this on the read end of the pipe

If the pipe is using secure memory, you should use readSecure()

Parameters

bytes

the number of bytes to read (-1 for all content).

readyRead

void QCA::QPipeEnd::readyRead ( )

signal

Emitted when there are bytes available to be read from the read end of the pipe.

See also

bytesAvailable()

release()

void QCA::QPipeEnd::release

(

)

Let go of the active pipe handle, but don't close it.

Use this before destructing QPipeEnd, if you don't want the pipe to automatically close.

reset()

void QCA::QPipeEnd::reset

(

)

Reset the pipe end to an inactive state.

setInheritable()

bool QCA::QPipeEnd::setInheritable

(

bool

enabled

)

Sets whether the pipe should be inheritable to child processes.

Returns true if inheritability was successfully changed, otherwise false.

Parameters

enabled

whether the pipe is inheritable (true) or not (false).

take()

void QCA::QPipeEnd::take	(	Q_PIPE_ID	id,
		QPipeDevice::Type	t )

Take over an existing pipe handle.

Parameters

id	the pipe handle
t	the type of the pipe (read or write)

takeBytesToWrite()

QByteArray QCA::QPipeEnd::takeBytesToWrite

(

)

Returns any unsent bytes queued for writing.

If the pipe is using secure memory, you should use takeBytesToWriteSecure().

type()

QPipeDevice::Type QCA::QPipeEnd::type

(

)

const

The type of pipe end (either read or write)

write()

void QCA::QPipeEnd::write

(

const QByteArray &

a

)

Write bytes to the pipe.

You can only call this on the write end of the pipe.

If the pipe is using secure memory, you should use writeSecure().

Parameters

a	the array to write to the pipe

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

• qpipe.h