(1e0b940256e2f7f63159ebe6420fc778a3d43b4f)

#include <QtCore/qtconfigmacros.h>
#include "qobject.h"
#include "qobject_p.h"
#include "qobject_p_p.h"
#include "qmetaobject_p.h"
#include <QtCore/private/qtclasshelper_p.h>
#include <QtCore/qspan.h>
#include "qabstracteventdispatcher.h"
#include "qabstracteventdispatcher_p.h"
#include "qcoreapplication.h"
#include "qcoreapplication_p.h"
#include "qcoreevent_p.h"
#include "qloggingcategory.h"
#include "qvariant.h"
#include "qmetaobject.h"
#include <qthread.h>
#include <private/qthread_p.h>
#include <qdebug.h>
#include <qvarlengtharray.h>
#include <qscopeguard.h>
#include <qset.h>
#include <private/qorderedmutexlocker_p.h>
#include <private/qhooks_p.h>
#include <qtcore_tracepoints_p.h>
#include <new>
#include <mutex>
#include <memory>
#include <optional>
#include <iterator>
#include <ctype.h>
#include <limits.h>
#include "moc_qobject.cpp"

Include dependency graph for qobject.cpp:

Go to the source code of this file.

Classes
struct	SlotObjectGuard

Enumerations
enum class	ConnectionEnd : bool { Sender , Receiver , Sender , Receiver }
enum class	ConnectionEnd : bool { Sender , Receiver , Sender , Receiver }

Functions
QT_BEGIN_NAMESPACE	Q_TRACE_POINT (qtcore, QObject_ctor, QObject *object)
	Q_TRACE_POINT (qtcore, QObject_dtor, QObject *object)
	Q_TRACE_POINT (qtcore, QMetaObject_activate_entry, QObject *sender, int signalIndex)
	Q_TRACE_POINT (qtcore, QMetaObject_activate_exit)
	Q_TRACE_POINT (qtcore, QMetaObject_activate_slot_entry, QObject *receiver, int slotIndex)
	Q_TRACE_POINT (qtcore, QMetaObject_activate_slot_exit)
	Q_TRACE_POINT (qtcore, QMetaObject_activate_slot_functor_entry, void *slotObject)
	Q_TRACE_POINT (qtcore, QMetaObject_activate_slot_functor_exit)
	Q_TRACE_POINT (qtcore, QMetaObject_activate_declarative_signal_entry, QObject *sender, int signalIndex)
	Q_TRACE_POINT (qtcore, QMetaObject_activate_declarative_signal_exit)
void	qt_register_signal_spy_callbacks (QSignalSpyCallbackSet *callback_set)
static int *	queuedConnectionTypes (const QMetaMethod &method)
static int *	queuedConnectionTypes (QSpan< const QArgumentType > argumentTypes)
static QBasicMutex *	signalSlotLock (const QObject *o)
static void	disconnectNotifySender (QObject *sender, int signalIndex, Qt::HANDLE currentThreadId)
static void	computeOffsets (const QMetaObject metaobject, int signalOffset, int *methodOffset)
static bool	check_parent_thread (QObject parent, QThreadData parentThreadData, QThreadData *currentThreadData)
static bool	matches_objectName_non_null (QObject *obj, QAnyStringView name)
void	qt_qFindChildren_helper (const QObject parent, QAnyStringView name, const QMetaObject &mo, QList< void > *list, Qt::FindChildOptions options)
QObject *	qt_qFindChild_helper (const QObject *parent, QAnyStringView name, const QMetaObject &mo, Qt::FindChildOptions options)
const char *	qFlagLocation (const char *method)
static int	extract_code (const char *member)
static const char *	extract_location (const char *member)
static bool	check_signal_macro (const QObject sender, const char signal, const char func, const char op)
static bool	check_method_code (int code, const QObject object, const char method, const char *func)
static Q_DECL_COLD_FUNCTION void	err_method_notfound (const QObject object, const char method, const char *func)
static Q_DECL_COLD_FUNCTION void	err_info_about_object (const char func, const QObject o, ConnectionEnd end)
static Q_DECL_COLD_FUNCTION void	err_info_about_objects (const char func, const QObject sender, const QObject *receiver)
static Q_DECL_COLD_FUNCTION void	connectWarning (const QObject sender, const QMetaObject senderMetaObject, const QObject receiver, const char message)
static void	check_and_warn_compat (const QMetaObject sender, const QMetaMethod &signal, const QMetaObject receiver, const QMetaMethod &method)
static int	methodIndexToSignalIndex (const QMetaObject **base, int signal_index)
static QByteArray	formatConnectionSignature (const char *className, const QMetaMethod &method)
static QByteArray	msgConnect (const QMetaObject senderMo, const QByteArray &senderName, const QMetaMethod &signal, const QObject receiver, int receiverIndex)
static void	queued_activate (QObject sender, int signal, QObjectPrivate::Connection c, void **argv)
template<bool callbacks_enabled>
void	doActivate (QObject sender, int signal_index, void *argv)
static void	dumpRecursive (int level, const QObject *object)
QDebug	operator<< (QDebug dbg, const QObject *o)

Variables
static int	DIRECT_CONNECTION_ONLY = 0
Q_CORE_EXPORT QBasicAtomicPointer< QSignalSpyCallbackSet >	qt_signal_spy_callback_set = Q_BASIC_ATOMIC_INITIALIZER(nullptr)
static Q_CONSTINIT QBasicMutex	_q_ObjectMutexPool [131]

Enumeration Type Documentation

◆ ConnectionEnd [1/2]

enum class ConnectionEnd : bool

strong

Enumerator
Sender
Receiver
Sender
Receiver

Definition at line 2781 of file qobject.cpp.

◆ ConnectionEnd [2/2]

enum class ConnectionEnd : bool

strong

Enumerator
Sender
Receiver
Sender
Receiver

Definition at line 2781 of file qobject.cpp.

Function Documentation

◆ check_and_warn_compat()

void check_and_warn_compat	(	const QMetaObject *	sender,
		const QMetaMethod &	signal,
		const QMetaObject *	receiver,
		const QMetaMethod &	method )

inlinestatic

Definition at line 3066 of file qobject.cpp.

◆ check_method_code()

bool check_method_code	(	int	code,
		const QObject *	object,
		const char *	method,
		const char *	func )

static

Definition at line 2734 of file qobject.cpp.

◆ check_parent_thread()

bool check_parent_thread	(	QObject *	parent,
		QThreadData *	parentThreadData,
		QThreadData *	currentThreadData )

static

Definition at line 972 of file qobject.cpp.

◆ check_signal_macro()

bool check_signal_macro	(	const QObject *	sender,
		const char *	signal,
		const char *	func,
		const char *	op )

static

Definition at line 2718 of file qobject.cpp.

References extract_code().

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◆ computeOffsets()

void computeOffsets	(	const QMetaObject *	metaobject,
		int *	signalOffset,
		int *	methodOffset )

static

For a given metaobject, compute the signal offset, and the method offset (including signals)

Definition at line 251 of file qobject.cpp.

References QMetaObjectPrivate::methodCount, QMetaObjectPrivate::revision, and QMetaObjectPrivate::signalCount.

Referenced by QMetaObjectPrivate::memberIndexes(), and methodIndexToSignalIndex().

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◆ connectWarning()

Q_DECL_COLD_FUNCTION void connectWarning	(	const QObject *	sender,
		const QMetaObject *	senderMetaObject,
		const QObject *	receiver,
		const char *	message )

static

Definition at line 2807 of file qobject.cpp.

◆ disconnectNotifySender()

void disconnectNotifySender	(	QObject *	sender,
		int	signalIndex,
		Qt::HANDLE	currentThreadId )

static

Tells sender that the connection for signalIndex is gone, because its receiver is being destroyed.

The caller holds the receiver's signalSlotLock, which sender's destructor must also take to tear down this (still-present) connection. So sender cannot get past ~QObject(), and reading its QObjectPrivate here is safe. That lock does not, however, hold back sender's further-derived destructors: those run before ~QObject() takes any lock, and rewrite the vptr as they go. Resolving the signal and calling disconnectNotify() are therefore virtual calls that may only be made from the thread that owns sender. Post them to that thread otherwise, unless it can no longer deliver events (e.g. it has finished), where the event would leak.

Definition at line 166 of file qobject.cpp.

◆ doActivate()

template<bool callbacks_enabled>

void doActivate	(	QObject *	sender,
		int	signal_index,
		void **	argv )

Definition at line 4346 of file qobject.cpp.

◆ dumpRecursive()

void dumpRecursive	(	int	level,
		const QObject *	object )

static

Definition at line 4718 of file qobject.cpp.

◆ err_info_about_object()

Q_DECL_COLD_FUNCTION void err_info_about_object	(	const char *	func,
		const QObject *	o,
		ConnectionEnd	end )

static

Definition at line 2783 of file qobject.cpp.

References Sender.

Referenced by err_info_about_objects().

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◆ err_info_about_objects()

Q_DECL_COLD_FUNCTION void err_info_about_objects	(	const char *	func,
		const QObject *	sender,
		const QObject *	receiver )

static

Definition at line 2800 of file qobject.cpp.

References err_info_about_object(), Receiver, and Sender.

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◆ err_method_notfound()

Q_DECL_COLD_FUNCTION void err_method_notfound	(	const QObject *	object,
		const char *	method,
		const char *	func )

static

Definition at line 2763 of file qobject.cpp.

References extract_code(), and extract_location().

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◆ extract_code()

int extract_code ( const char * member )

static

Definition at line 2701 of file qobject.cpp.

Referenced by check_signal_macro(), and err_method_notfound().

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◆ extract_location()

const char * extract_location ( const char * member )

static

Definition at line 2707 of file qobject.cpp.

Referenced by err_method_notfound().

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◆ formatConnectionSignature()

QByteArray formatConnectionSignature	(	const char *	className,
		const QMetaMethod &	method )

static

Definition at line 4023 of file qobject.cpp.

◆ matches_objectName_non_null()

bool matches_objectName_non_null	(	QObject *	obj,
		QAnyStringView	name )

static

Definition at line 2241 of file qobject.cpp.

◆ methodIndexToSignalIndex()

int methodIndexToSignalIndex	(	const QMetaObject **	base,
		int	signal_index )

static

Definition at line 3767 of file qobject.cpp.

References computeOffsets().

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◆ msgConnect()

QByteArray msgConnect	(	const QMetaObject *	senderMo,
		const QByteArray &	senderName,
		const QMetaMethod &	signal,
		const QObject *	receiver,
		int	receiverIndex )

static

Definition at line 4041 of file qobject.cpp.

◆ operator<<()

QDebug operator<<	(	QDebug	dbg,
		const QObject *	o )

Definition at line 4830 of file qobject.cpp.

◆ Q_TRACE_POINT() [1/10]

Q_TRACE_POINT	(	qtcore	,
		QMetaObject_activate_declarative_signal_entry	,
		QObject *	sender,
		int	signalIndex )

◆ Q_TRACE_POINT() [2/10]

Q_TRACE_POINT	(	qtcore	,
		QMetaObject_activate_declarative_signal_exit	)

◆ Q_TRACE_POINT() [3/10]

Q_TRACE_POINT	(	qtcore	,
		QMetaObject_activate_entry	,
		QObject *	sender,
		int	signalIndex )

◆ Q_TRACE_POINT() [4/10]

Q_TRACE_POINT	(	qtcore	,
		QMetaObject_activate_exit	)

◆ Q_TRACE_POINT() [5/10]

Q_TRACE_POINT	(	qtcore	,
		QMetaObject_activate_slot_entry	,
		QObject *	receiver,
		int	slotIndex )

◆ Q_TRACE_POINT() [6/10]

Q_TRACE_POINT	(	qtcore	,
		QMetaObject_activate_slot_exit	)

◆ Q_TRACE_POINT() [7/10]

Q_TRACE_POINT	(	qtcore	,
		QMetaObject_activate_slot_functor_entry	,
		void *	slotObject )

◆ Q_TRACE_POINT() [8/10]

Q_TRACE_POINT	(	qtcore	,
		QMetaObject_activate_slot_functor_exit	)

◆ Q_TRACE_POINT() [9/10]

QT_BEGIN_NAMESPACE Q_TRACE_POINT	(	qtcore	,
		QObject_ctor	,
		QObject *	object )

◆ Q_TRACE_POINT() [10/10]

Q_TRACE_POINT	(	qtcore	,
		QObject_dtor	,
		QObject *	object )

◆ qFlagLocation()

const char * qFlagLocation ( const char * method )

Definition at line 2695 of file qobject.cpp.

◆ qt_qFindChild_helper()

QObject * qt_qFindChild_helper	(	const QObject *	parent,
		QAnyStringView	name,
		const QMetaObject &	mo,
		Qt::FindChildOptions	options )

Definition at line 2288 of file qobject.cpp.

◆ qt_qFindChildren_helper()

void qt_qFindChildren_helper	(	const QObject *	parent,
		QAnyStringView	name,
		const QMetaObject &	mo,
		QList< void * > *	list,
		Qt::FindChildOptions	options )

Definition at line 2251 of file qobject.cpp.

◆ qt_register_signal_spy_callbacks()

void qt_register_signal_spy_callbacks ( QSignalSpyCallbackSet * callback_set )

Definition at line 74 of file qobject.cpp.

◆ queued_activate()

void queued_activate	(	QObject *	sender,
		int	signal,
		QObjectPrivate::Connection *	c,
		void **	argv )

static

signal must be in the signal index range (see QObjectPrivate::signalIndex()).

Definition at line 4288 of file qobject.cpp.

◆ queuedConnectionTypes() [1/2]

int * queuedConnectionTypes ( const QMetaMethod & method )

static

Definition at line 87 of file qobject.cpp.

◆ queuedConnectionTypes() [2/2]

int * queuedConnectionTypes ( QSpan< const QArgumentType > argumentTypes )

static

Definition at line 116 of file qobject.cpp.

◆ signalSlotLock()

QBasicMutex * signalSlotLock ( const QObject * o )

inlinestatic

mutex to be locked when accessing the connection lists or the senders list

Definition at line 148 of file qobject.cpp.

Variable Documentation

◆ _q_ObjectMutexPool

Q_CONSTINIT QBasicMutex _q_ObjectMutexPool

static

Definition at line 142 of file qobject.cpp.

◆ DIRECT_CONNECTION_ONLY

int DIRECT_CONNECTION_ONLY = 0

static

Definition at line 67 of file qobject.cpp.

◆ qt_signal_spy_callback_set

Q_CORE_EXPORT QBasicAtomicPointer<QSignalSpyCallbackSet> qt_signal_spy_callback_set = Q_BASIC_ATOMIC_INITIALIZER(nullptr)

Definition at line 72 of file qobject.cpp.

(1e0b940256e2f7f63159ebe6420fc778a3d43b4f)

Classes

Enumerations

Functions

Variables

Enumeration Type Documentation

◆ ConnectionEnd [1/2]

◆ ConnectionEnd [2/2]

Function Documentation

◆ check_and_warn_compat()

◆ check_method_code()

◆ check_parent_thread()

◆ check_signal_macro()

◆ computeOffsets()

◆ connectWarning()

◆ disconnectNotifySender()

◆ doActivate()

◆ dumpRecursive()

◆ err_info_about_object()

◆ err_info_about_objects()

◆ err_method_notfound()

◆ extract_code()

◆ extract_location()

◆ formatConnectionSignature()

◆ matches_objectName_non_null()

◆ methodIndexToSignalIndex()

◆ msgConnect()

◆ operator<<()

◆ Q_TRACE_POINT() [1/10]

◆ Q_TRACE_POINT() [2/10]

◆ Q_TRACE_POINT() [3/10]

◆ Q_TRACE_POINT() [4/10]

◆ Q_TRACE_POINT() [5/10]

◆ Q_TRACE_POINT() [6/10]

◆ Q_TRACE_POINT() [7/10]

◆ Q_TRACE_POINT() [8/10]

◆ Q_TRACE_POINT() [9/10]

◆ Q_TRACE_POINT() [10/10]

◆ qFlagLocation()

◆ qt_qFindChild_helper()

◆ qt_qFindChildren_helper()

◆ qt_register_signal_spy_callbacks()

◆ queued_activate()

◆ queuedConnectionTypes() [1/2]

◆ queuedConnectionTypes() [2/2]

◆ signalSlotLock()

Variable Documentation

◆ _q_ObjectMutexPool

◆ DIRECT_CONNECTION_ONLY

◆ qt_signal_spy_callback_set