Qt 4.8
Public Slots | Signals | Public Functions | Protected Variables | List of all members
QNonContiguousByteDeviceThreadForwardImpl Class Reference

#include <qhttpthreaddelegate_p.h>

Inheritance diagram for QNonContiguousByteDeviceThreadForwardImpl:
QNonContiguousByteDevice QObject

Public Slots

void haveDataSlot (QByteArray dataArray, bool dataAtEnd, qint64 dataSize)
 
- Public Slots inherited from QObject
void deleteLater ()
 Schedules this object for deletion. More...
 

Signals

void processedData (qint64)
 
void resetData (bool *b)
 
void wantData (qint64)
 
- Signals inherited from QNonContiguousByteDevice
void readProgress (qint64 current, qint64 total)
 Emitted when data has been "read" by advancing the read pointer. More...
 
void readyRead ()
 Emitted when there is data available. More...
 
- 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

bool advanceReadPointer (qint64 a)
 The old readPointer is invalid after this call. More...
 
bool atEnd ()
 Returns true if everything has been read and the read pointer cannot be advanced anymore. More...
 
 QNonContiguousByteDeviceThreadForwardImpl (bool aE, qint64 s)
 
const char * readPointer (qint64 maximumLength, qint64 &len)
 Return a byte pointer for at most maximumLength bytes of that device. More...
 
bool reset ()
 Moves the internal read pointer back to the beginning. More...
 
qint64 size ()
 Returns the size of the complete device or -1 if unknown. More...
 
 ~QNonContiguousByteDeviceThreadForwardImpl ()
 
- Public Functions inherited from QNonContiguousByteDevice
void disableReset ()
 Disable the reset() call, e. More...
 
bool isResetDisabled ()
 
virtual ~QNonContiguousByteDevice ()
 
- 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 QObjectListchildren () 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< QByteArraydynamicPropertyNames () 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 >
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 QMetaObjectmetaObject () 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
 
QObjectparent () 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...
 
QThreadthread () const
 Returns the thread in which the object lives. More...
 
QObjectUserDatauserData (uint id) const
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects. More...
 

Protected Variables

qint64 m_amount
 
bool m_atEnd
 
char * m_data
 
QByteArray m_dataArray
 
qint64 m_size
 
bool wantDataPending
 
- Protected Variables inherited from QNonContiguousByteDevice
bool resetDisabled
 
- Protected Variables inherited from QObject
QScopedPointer< QObjectDatad_ptr
 

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 QNonContiguousByteDevice
 QNonContiguousByteDevice ()
 
- 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...
 
QObjectsender () 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
 
virtual void timerEvent (QTimerEvent *)
 This event handler can be reimplemented in a subclass to receive timer events for the object. More...
 
- Static Protected Variables inherited from QObject
static const QMetaObject staticQtMetaObject
 

Detailed Description

Definition at line 183 of file qhttpthreaddelegate_p.h.

Constructors and Destructors

◆ QNonContiguousByteDeviceThreadForwardImpl()

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

◆ ~QNonContiguousByteDeviceThreadForwardImpl()

QNonContiguousByteDeviceThreadForwardImpl::~QNonContiguousByteDeviceThreadForwardImpl ( )
inline

Definition at line 204 of file qhttpthreaddelegate_p.h.

205  {
206  }

Functions

◆ advanceReadPointer()

bool QNonContiguousByteDeviceThreadForwardImpl::advanceReadPointer ( qint64  amount)
inlinevirtual

The old readPointer is invalid after this call.

will advance the internal read pointer by amount bytes.

See also
readPointer()
Warning
This function is not part of the public interface.

Implements QNonContiguousByteDevice.

Definition at line 228 of file qhttpthreaddelegate_p.h.

229  {
230  if (m_data == 0)
231  return false;
232 
233  m_amount -= a;
234  m_data += a;
235 
236  // To main thread to inform about our state
238 
239  // FIXME possible optimization, already ask user thread for some data
240 
241  return true;
242  }
long ASN1_INTEGER_get ASN1_INTEGER * a
#define emit
Definition: qobjectdefs.h:76

◆ atEnd()

bool QNonContiguousByteDeviceThreadForwardImpl::atEnd ( )
inlinevirtual

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

See also
readPointer(), advanceReadPointer(), reset()
Warning
This function is not part of the public interface.

Implements QNonContiguousByteDevice.

Definition at line 244 of file qhttpthreaddelegate_p.h.

245  {
246  if (m_amount > 0)
247  return false;
248  else
249  return m_atEnd;
250  }

◆ haveDataSlot

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

Definition at line 270 of file qhttpthreaddelegate_p.h.

271  {
272  wantDataPending = false;
273 
274  m_dataArray = dataArray;
275  m_data = const_cast<char*>(m_dataArray.constData());
276  m_amount = dataArray.size();
277 
278  m_atEnd = dataAtEnd;
279  m_size = dataSize;
280 
281  // This will tell the HTTP code (QHttpNetworkConnectionChannel) that we have data available now
282  emit readyRead();
283  }
void readyRead()
Emitted when there is data available.
#define emit
Definition: qobjectdefs.h:76
const char * constData() const
Returns a pointer to the data stored in the byte array.
Definition: qbytearray.h:433
int size() const
Returns the number of bytes in this byte array.
Definition: qbytearray.h:402

◆ processedData

void QNonContiguousByteDeviceThreadForwardImpl::processedData ( qint64  )
signal

◆ readPointer()

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

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()
Warning
This function is not part of the public interface.

Implements QNonContiguousByteDevice.

Definition at line 208 of file qhttpthreaddelegate_p.h.

209  {
210  if (m_amount > 0) {
211  len = m_amount;
212  return m_data;
213  }
214 
215  if (m_atEnd) {
216  len = -1;
217  } else if (!wantDataPending) {
218  len = 0;
219  wantDataPending = true;
220  emit wantData(maximumLength);
221  } else {
222  // Do nothing, we already sent a wantData signal and wait for results
223  len = 0;
224  }
225  return 0;
226  }
#define emit
Definition: qobjectdefs.h:76

◆ reset()

bool QNonContiguousByteDeviceThreadForwardImpl::reset ( )
inlinevirtual

Moves the internal read pointer back to the beginning.

Returns false if this was not possible.

See also
atEnd(), disableReset()
Warning
This function is not part of the public interface.

Implements QNonContiguousByteDevice.

Definition at line 252 of file qhttpthreaddelegate_p.h.

253  {
254  m_amount = 0;
255  m_data = 0;
256 
257  // Communicate as BlockingQueuedConnection
258  bool b = false;
259  emit resetData(&b);
260  return b;
261  }
#define emit
Definition: qobjectdefs.h:76

◆ resetData

void QNonContiguousByteDeviceThreadForwardImpl::resetData ( bool *  b)
signal

◆ size()

qint64 QNonContiguousByteDeviceThreadForwardImpl::size ( )
inlinevirtual

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

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

Warning
This function is not part of the public interface.

Implements QNonContiguousByteDevice.

Definition at line 263 of file qhttpthreaddelegate_p.h.

264  {
265  return m_size;
266  }

◆ wantData

void QNonContiguousByteDeviceThreadForwardImpl::wantData ( qint64  )
signal

Properties

◆ m_amount

qint64 QNonContiguousByteDeviceThreadForwardImpl::m_amount
protected

Definition at line 188 of file qhttpthreaddelegate_p.h.

◆ m_atEnd

bool QNonContiguousByteDeviceThreadForwardImpl::m_atEnd
protected

Definition at line 191 of file qhttpthreaddelegate_p.h.

◆ m_data

char* QNonContiguousByteDeviceThreadForwardImpl::m_data
protected

Definition at line 189 of file qhttpthreaddelegate_p.h.

◆ m_dataArray

QByteArray QNonContiguousByteDeviceThreadForwardImpl::m_dataArray
protected

Definition at line 190 of file qhttpthreaddelegate_p.h.

◆ m_size

qint64 QNonContiguousByteDeviceThreadForwardImpl::m_size
protected

Definition at line 192 of file qhttpthreaddelegate_p.h.

◆ wantDataPending

bool QNonContiguousByteDeviceThreadForwardImpl::wantDataPending
protected

Definition at line 187 of file qhttpthreaddelegate_p.h.


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