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Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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QNonContiguousByteDeviceThreadForwardImpl Class Reference

#include <qhttpthreaddelegate_p.h>

Inheritance diagram for QNonContiguousByteDeviceThreadForwardImpl:
Collaboration diagram for QNonContiguousByteDeviceThreadForwardImpl:

Public Slots

void haveDataSlot (qint64 pos, const QByteArray &dataArray, bool dataAtEnd, qint64 dataSize)
Public Slots inherited from QObject
void deleteLater ()
 \threadsafe

Signals

void wantData (qint64)
void processedData (qint64 pos, qint64 amount)
void resetData (bool *b)
Signals inherited from QNonContiguousByteDevice
void readyRead ()
 Emitted when there is data available.
void readProgress (qint64 current, qint64 total)
 Emitted when data has been "read" by advancing the read pointer.
Signals inherited from QObject
void destroyed (QObject *=nullptr)
 This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
void objectNameChanged (const QString &objectName, QPrivateSignal)
 This signal is emitted after the object's name has been changed.

Public Member Functions

 QNonContiguousByteDeviceThreadForwardImpl (bool aE, qint64 s)
 ~QNonContiguousByteDeviceThreadForwardImpl ()
qint64 pos () const override
const char * readPointer (qint64 maximumLength, qint64 &len) override
 Return a byte pointer for at most maximumLength bytes of that device.
bool advanceReadPointer (qint64 a) override
 will advance the internal read pointer by amount bytes.
bool atEnd () const override
 Returns true if everything has been read and the read pointer cannot be advanced anymore.
bool reset () override
 Moves the internal read pointer back to the beginning.
qint64 size () const override
 Returns the size of the complete device or -1 if unknown.
Public Member Functions inherited from QNonContiguousByteDevice
virtual ~QNonContiguousByteDevice ()
Public Member Functions inherited from QObject
Q_INVOKABLE QObject (QObject *parent=nullptr)
 Constructs an object with parent object parent.
virtual ~QObject ()
 Destroys the object, deleting all its child objects.
virtual bool event (QEvent *event)
 This virtual function receives events to an object and should return true if the event e was recognized and processed.
virtual bool eventFilter (QObject *watched, QEvent *event)
 Filters events if this object has been installed as an event filter for the watched object.
QString objectName () const
Q_WEAK_OVERLOAD void setObjectName (const QString &name)
 Sets the object's name to name.
void setObjectName (QAnyStringView name)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
QBindable< QString > bindableObjectName ()
bool isWidgetType () const
 Returns true if the object is a widget; otherwise returns false.
bool isWindowType () const
 Returns true if the object is a window; otherwise returns false.
bool isQuickItemType () const
 Returns true if the object is a QQuickItem; otherwise returns false.
bool isQmlObjectType () const
 Returns whether the object has been created by the QML engine or ownership has been explicitly set via QJSEngine::setObjectOwnership().
bool signalsBlocked () const noexcept
 Returns true if signals are blocked; otherwise returns false.
bool blockSignals (bool b) noexcept
 If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
QThread * thread () const
 Returns the thread in which the object lives.
bool moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
 Changes the thread affinity for this object and its children and returns true on success.
int startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
 This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
int startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)
void killTimer (int id)
 Kills the timer with timer identifier, id.
void killTimer (Qt::TimerId id)
template<typename T>
T findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
template<typename T>
QList< T > findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) 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.
template<typename T>
T findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
template<typename T>
QList< T > findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
const QObjectList & children () const
 Returns a list of child objects.
void setParent (QObject *parent)
 Makes the object a child of parent.
void installEventFilter (QObject *filterObj)
 Installs an event filter filterObj on this object.
void removeEventFilter (QObject *obj)
 Removes an event filter object obj from this object.
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
 Dumps a tree of children to the debug output.
void dumpObjectInfo () const
 Dumps information about signal connections, etc.
bool setProperty (const char *name, const QVariant &value)
 Sets the value of the object's name property to value.
bool setProperty (const char *name, QVariant &&value)
QVariant property (const char *name) const
 Returns the value of the object's name property.
QList< QByteArray > dynamicPropertyNames () const
QBindingStorage * bindingStorage ()
const QBindingStorage * bindingStorage () const
QObject * parent () const
 Returns a pointer to the parent object.
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.

Protected Attributes

bool wantDataPending = false
qint64 m_amount = 0
char * m_data = nullptr
QByteArray m_dataArray
bool m_atEnd = false
qint64 m_size = 0
qint64 m_pos = 0
Protected Attributes inherited from QObject
QScopedPointer< QObjectData > d_ptr

Additional Inherited Members

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)
 \threadsafe
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::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)
template<typename Func1, typename Func2>
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 \threadsafe
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
static bool disconnect (const QMetaObject::Connection &)
 Disconnect a 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)
Protected Member Functions inherited from QNonContiguousByteDevice
 QNonContiguousByteDevice ()
Protected Member Functions inherited from QObject
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 \nullptr.
int senderSignalIndex () const
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal.
bool isSignalConnected (const QMetaMethod &signal) const
virtual void timerEvent (QTimerEvent *event)
 This event handler can be reimplemented in a subclass to receive timer events for the object.
virtual void childEvent (QChildEvent *event)
 This event handler can be reimplemented in a subclass to receive child events.
virtual void customEvent (QEvent *event)
 This event handler can be reimplemented in a subclass to receive custom events.
virtual void connectNotify (const QMetaMethod &signal)
virtual void disconnectNotify (const QMetaMethod &signal)
 QObject (QObjectPrivate &dd, QObject *parent=nullptr)
Properties inherited from QObject
QString objectName
 the name of this object
Related Symbols inherited from QObject
 Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.
 \macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 167 of file qhttpthreaddelegate_p.h.

Constructor & Destructor Documentation

◆ QNonContiguousByteDeviceThreadForwardImpl()

QNonContiguousByteDeviceThreadForwardImpl::QNonContiguousByteDeviceThreadForwardImpl ( bool aE,
qint64 s )
inline

Definition at line 179 of file qhttpthreaddelegate_p.h.

References QNonContiguousByteDeviceThreadForwardImpl(), and m_atEnd.

Referenced by QNonContiguousByteDeviceThreadForwardImpl().

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ~QNonContiguousByteDeviceThreadForwardImpl()

QNonContiguousByteDeviceThreadForwardImpl::~QNonContiguousByteDeviceThreadForwardImpl ( )
inline

Definition at line 186 of file qhttpthreaddelegate_p.h.

Member Function Documentation

◆ advanceReadPointer()

bool QNonContiguousByteDeviceThreadForwardImpl::advanceReadPointer ( qint64 amount)
inlineoverridevirtual

will advance the internal read pointer by amount bytes.

The old readPointer is invalid after this call.

See also
readPointer()

Implements QNonContiguousByteDevice.

Definition at line 215 of file qhttpthreaddelegate_p.h.

References m_data.

◆ atEnd()

bool QNonContiguousByteDeviceThreadForwardImpl::atEnd ( ) const
inlineoverridevirtual

Returns true if everything has been read and the read pointer cannot be advanced anymore.

See also
readPointer(), advanceReadPointer(), reset()

Implements QNonContiguousByteDevice.

Definition at line 230 of file qhttpthreaddelegate_p.h.

References m_atEnd.

◆ haveDataSlot

void QNonContiguousByteDeviceThreadForwardImpl::haveDataSlot ( qint64 pos,
const QByteArray & dataArray,
bool dataAtEnd,
qint64 dataSize )
inlineslot

Definition at line 268 of file qhttpthreaddelegate_p.h.

◆ pos()

qint64 QNonContiguousByteDeviceThreadForwardImpl::pos ( ) const
inlineoverridevirtual

Reimplemented from QNonContiguousByteDevice.

Definition at line 190 of file qhttpthreaddelegate_p.h.

◆ processedData

void QNonContiguousByteDeviceThreadForwardImpl::processedData ( qint64 pos,
qint64 amount )
signal

◆ readPointer()

const char * QNonContiguousByteDeviceThreadForwardImpl::readPointer ( qint64 maximumLength,
qint64 & len )
inlineoverridevirtual

Return a byte pointer for at most maximumLength bytes of that device.

if maximumLength is -1, the caller does not care about the length and the device may return what it desires to. The actual number of bytes the pointer is valid for is returned in the len variable. len will be -1 if EOF or an error occurs. If it was really EOF can then afterwards be checked with atEnd() Returns 0 if it is not possible to read at that position.

See also
atEnd()

Implements QNonContiguousByteDevice.

Definition at line 195 of file qhttpthreaddelegate_p.h.

References m_atEnd, and m_data.

◆ reset()

bool QNonContiguousByteDeviceThreadForwardImpl::reset ( )
inlineoverridevirtual

Moves the internal read pointer back to the beginning.

Returns false if this was not possible.

See also
atEnd()

Implements QNonContiguousByteDevice.

Definition at line 238 of file qhttpthreaddelegate_p.h.

References m_atEnd, and m_data.

◆ resetData

void QNonContiguousByteDeviceThreadForwardImpl::resetData ( bool * b)
signal

◆ size()

qint64 QNonContiguousByteDeviceThreadForwardImpl::size ( ) const
inlineoverridevirtual

Returns the size of the complete device or -1 if unknown.

May also return less/more than what can be actually read with readPointer()

Implements QNonContiguousByteDevice.

Definition at line 261 of file qhttpthreaddelegate_p.h.

◆ wantData

void QNonContiguousByteDeviceThreadForwardImpl::wantData ( qint64 )
signal

Member Data Documentation

◆ m_amount

qint64 QNonContiguousByteDeviceThreadForwardImpl::m_amount = 0
protected

Definition at line 172 of file qhttpthreaddelegate_p.h.

◆ m_atEnd

bool QNonContiguousByteDeviceThreadForwardImpl::m_atEnd = false
protected

Definition at line 175 of file qhttpthreaddelegate_p.h.

Referenced by QNonContiguousByteDeviceThreadForwardImpl(), atEnd(), readPointer(), and reset().

◆ m_data

char* QNonContiguousByteDeviceThreadForwardImpl::m_data = nullptr
protected

Definition at line 173 of file qhttpthreaddelegate_p.h.

Referenced by advanceReadPointer(), readPointer(), and reset().

◆ m_dataArray

QByteArray QNonContiguousByteDeviceThreadForwardImpl::m_dataArray
protected

Definition at line 174 of file qhttpthreaddelegate_p.h.

◆ m_pos

qint64 QNonContiguousByteDeviceThreadForwardImpl::m_pos = 0
protected

Definition at line 177 of file qhttpthreaddelegate_p.h.

◆ m_size

qint64 QNonContiguousByteDeviceThreadForwardImpl::m_size = 0
protected

Definition at line 176 of file qhttpthreaddelegate_p.h.

◆ wantDataPending

bool QNonContiguousByteDeviceThreadForwardImpl::wantDataPending = false
protected

Definition at line 171 of file qhttpthreaddelegate_p.h.

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