The connect() documentation makes it clear that UniqueConnection does
not work with free functions / function objects and the like; only with
actual PMFs. Rather than silently *ignoring* the flag, be vocal about its
presence by warning, and make the connection fail (as the user has
passed an illegal argument).
[ChangeLog][QtCore][QObject] QObject::connect() now will refuse to
connect a signal to a free function / function object if UniqueConnection
is passed. Note that UniqueConnection has never worked for such
connections -- the flag was simply ignored, and they were established
multiple times. Now, the flag is not ignored and results in a connection
failure (as well as a runtime warning by Qt).
Change-Id: I6509667018c74f9bd24910cde0a1b16c5f84f064
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Outside tests, all in-tree callers of QObject::findChildren() pass no
name to match, and in my experience that is also true for the vast
majority of out-of-tree users.
Avoid the temporary QString creation in the caller and the repeated
QString::isNull() checks in the implementation by overloading
findChildren() without a name argument and checking for name.isNull()
only once, forking off into separate helper functions.
Adjust in-tree callers that used an explicit `QString()` argument in
order to pass options, which goes to show that `name` should never
have been the first argument of findChilden() in the first place, even
though I appreciate the symmetry with findChild() (the use-cases of
which, however, are radically different).
Change a `findChildren().size() == 0` call found while scanning for
findChildren() calls to `!findChild()` as a drive-by.
Modernize loops in the various qt_qFindChild{,ren}_helper() overloads
to match how the new code looks.
[ChangeLog][QtCore][QObject] Added findChildren() overload taking no
name (thus optimizing this common case).
Change-Id: Ifc56e5438023d079b40c67f11ae274a3e128ad5e
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
When a signal/slot connection is broken, it gets added to the
sender's list of "orphaned connections", to clean up later.
This cleanup happens when the sender gets destroyed or as soon as
it emits any signal.
This may cause soft memory leaks in case receivers get destroyed,
and the sender is a long living object and doesn't emit signals
for a while (e.g. QThread).
For some reason, an explicit disconnection cleans up the list
(either by using the QMetaObject::Connection object, or in case
of string-based connect, using a string-based disconnect). This
raises lots of doubts about why having this list in the first
place.
Fix the soft-leak by cleaning up the orphaned connection list when
destroying a receiver.
Note: I still believe that we shouldn't have any "orphaned"
connection list, and rather cleanup on disconnect/deletion
(otherwise, emitting a signal may cause a CPU spike because it
triggers a cleanup). If we allow for any "impredictability" during
signal activation we're just admitting that signals/slots aren't
suitable for e.g. low-latency codepaths. That's why I'm not marking
the problem as fixed.
Original-patch-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Task-number: QTBUG-88248
Task-number: QTBUG-87774
Pick-to: 6.2 6.1 5.15
Change-Id: Id25f67a45dff49f740132a44d36e88740eb12070
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
This does not fix all data races that we have in the system yet.
One major issue is the virtual disconnectNotify(), that can be
called from any thread and thus is inherently problematic, as it
can collide with the object getting destroyed at the same time
in another thread.
Pick-to: 6.2 6.1 5.15
Task-number: QTBUG-88248
Change-Id: I9d841eb363b7e4f0de1657aeb8f5340d0fd55190
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This function is/will be used in a few places where we already have a
lock. Temporarily unlocking and relocking invites all kinds of troubles.
By adding a flag we can instead tell the function that we already hold
the lock.
Pick-to: 6.2 6.1 5.15
Change-Id: Ibca089de61133661d5cd75290f2a55c22c5d013c
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
queued_activate adds a reference to the slot object. It also attempts to
deref it again, but that did not work correctly so far. We could end up
with
T1 | T2
queued_activate |
checks isSlotObject |
adds ref |
locker.unlock() |
| QObject::~QObject
| //In disconnect all senders loop
| sets isSlotObject to false
| derefs slotObj, but not deleted
checks isSlotObject |
(no deref because it's null) |
To solve this issue and others caused by early returns, we now use a
RAII helper, which always takes care of calling destroyIfLastRef if the
ref count has been incremented.
Change-Id: I9c011cdb8faa5f344d7e70f024fc13f407e39ccf
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Once we're in ~QObject, only methods of QObject are still valid.
Notably, no setter of any derived class is still valid. Thus, to be safe
we must no longer react to binding changes of those properties. To
ensure that this happens for QObjectCompatProperty properties, we
explicitly clear the binding storage.
Fixes a particles3d example crash.
Change-Id: I10d2bfa5e96621ce039d751cffaf3ac41893623e
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Extended QObjectPrivate::ExtraData to store a pointer
to its parent, and reimplemented qGetBindingStorage()
function for QObjectPrivate::ExtraData.
This allows to use Q_OBJECT_COMPAT_PROPERTY macro
for a property, stored in QObjectPrivate::ExtraData
and solves all the problems with calling a custom
setter.
Task-number: QTBUG-85520
Change-Id: I40e01c29430846359ef9160fa1ae97c702be9a18
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
The Core_qobject target was problematic for a few reasons.
In the very beginning, Core_qobject was an OBJECT library, explaining
its existence with the following comment "requires to spill internals
into users". The object library contained qobject.cpp and
qproperty.cpp and their manually generated moc files.
It was was a dependency of Core.
Afterwards it got converted into a static library instead, presumably
to circumvent some issues with metatype generation.
Unfortunately making it a static library was wrong, because it leads
to linker failures (undefined symbols) in a static Qt build when
trying to link a project that uses only QtCore.
Both Core and Core_qobject refer to each other's symbols, and
whichever library came first on the link line, many of its symbols
were discarded by the linker.
Transforming Core_qobject back into an object library could be an
option, but that leads to trouble with creating proper prl files
(our infrastructure doesn't quite support that for object libraries
yet).
Furthermore, there was some internal discussion and concern
about how to merge the two metatype json file lists (Core and
Core_qobject) into a single file.
Instead of using an object library, move qobject.cpp and qproperty.cpp
to be directly a part of Core again and remove the Core_qobject
target.
In order to do that, we have to circumvent some issues with
AUTOMOC.
First, we have to disable AUTOMOC for qobject.cpp and its headers.
qobject.cpp contains Q_GADGET, Q_NAMESPACE, etc keywords
in its doc comments. That confuses AUTOMOC, because it expects a
qobject.moc file which is not included by qobject.cpp.
See e2ff9e3b99 for some details
on the Q_GADGET + AUTOMOC issue.
We still need to run moc on on qobject.h and compile moc_qobject.cpp,
so we manually run moc on the header file. Because qobject.cpp
directly includes moc_qobject.cpp, we need to adjust the header
include path to the generated file.
Second, we remove the direct inclusion of moc_qnamespace.cpp
in qobject.cpp to prevent duplicate symbol compilation, because
the symbols were compiled both as part of qobject.cpp and
mocs_compilation.cpp.
Finally, because manual moc is used on qobject.h, the generated json
file needs to be explicitly passed to Core's metatype generation
step.
Amends e57a94cbd8
Amends 3c4c02b3f1
Pick-to: 6.1
Task-number: QTBUG-87580
Change-Id: I859a7d2f95508eda211a0a0b4ec132540b78bda4
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
The code in qtdeclarative did not do anything at all anymore.
Change-Id: Idd97145cb74aeb4f43dfce2f282a765e90945073
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Original QML-specific connection mechanism ignores the receiver argument
and uses sender as receiver. This causes uncontrollable memory growth
in certain cases as connections on receiver persist even after receiver
is destroyed
New connect() with receiver parameter uses underlying API correctly,
disconnect is provided for the symmetry (not sure it's really needed)
Task-number: QTBUG-86368
Pick-to: 5.15 6.0
Change-Id: I4580d75b617cb2c4dfb971a4dfb8e943e325572b
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
There was a check "if (cd && cd->signalVectorCount())" in the code
which was faulty because "signalVectorCount()" could return -1 to
indicate that no signalVector is available. This patch fixes
the problem.
Fixes: QTBUG-89846
Pick-to: 5.15
Change-Id: I12c512ff8d889ba2bd298789ab6081930f739089
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The only callers are QObject::findChild(ren), and they always
pass valid pointers, so there's no point of checking them.
Change-Id: I789abc3a53db523acf06c1a8a340094a71c79e41
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
And inline the fast checks inside the methods in QBindingStorage.
This allows QObjectBindableProperty and friends to inline all the
fast checks and almost completely eliminates the overhead for property
accesses when no bindings are being used.
Read and write times of QObject based properties when no bindings
are being used:
Read Write
Old style property: 3.8ns 7.3ns
QObjectBindableProperty (no notification): 4.5ns 4.3ns
QObjectBindableProperty (with signal): 4.5ns 7.6ns
QObjectBindableProperty (inline accessors): 3.2ns 3.4ns
Numbers without this patch:
Old style property: 3.8ns 7.9ns
QObjectBindableProperty (no notification): 7.2ns 7.7ns
QObjectBindableProperty (with signal): 7.2ns 16.0ns
QObjectBindableProperty (inline accessors): 6.3ns 6.7ns
Change-Id: Ifd1fa3a489c3be8b1468c0b88af547aac397f412
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
(cherry picked from commit 98c82fb445acf45cc4c4bc86a5adda43358127bf)
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
- QList iterators are now nested classes inside QList.
- Drop reference to Qt OpenGL Widgets landing page, there is no such
page.
- Fix typos and linking issues.
Fixes: QTBUG-86295
Pick-to: 6.0
Change-Id: I964843deb81aa55ff8ddb9a1c2b004cb72e68de9
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Introduce a category for debug/warning prints coming from connect()
and related functions. As a drive-by, rename and complete the
usage of logging categories for connectSlotsByName().
Change-Id: Ieb2d8641df856c8c60317757eda80dc5f9375130
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Mostly related to qstrlen().
Change-Id: I69e2052c83766e4fc466ed398d0d0eac011a77ec
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
QBindingStorage is a class that can store a set of binding objects
for the properties of a QObject. This will get used to reduce the
memory overhead of the property system when adding bindable properties
to QObject based classes.
The binding storage has a pointer to the TLS entry containing the
currently evaluating binding. Like that we avoid repeated TLS
lookups and reduce the overhead of the property system to one
pointer lookup and one compare for the case that properties
aren't being used.
Each QObject now owns one binding storage object, that can be used to
store binding data for properties that members of the QObject.
Change-Id: I27427c03c2ba281f072e074be96147bdbcaac246
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
If one needed to listen to a signal just once, one had to
store the QMetaObject::Connection object returned by connect()
and use it to disconnect the slot after the first signal
activation.
This has led to a proliferation of using wrappers (and enough
TMP); they usually look like this:
1) create a shared_ptr<QMO::Connection>, allocating its payload;
2) create a lambda, capturing the shared_ptr by value;
3) in the lambda, disconnect the connection (through the shared_ptr),
and call the actual slot;
4) connect the signal to the lambda, storing the returned
QMO::Connection into the shared_ptr.
This is expensive, error prone for newcomers, and tricky to
support as a general facility inside one's projects.
We can do better, just support single shot connections right
in QObject.
[ChangeLog][QtCore][QObject] Added the Qt::SingleShotConnection
flag. When a connection is established with this flag set,
the slot is going to be activated at most once; when the signal
is emitted, the connection gets automatically broken by Qt.
Change-Id: I5f5feeae7f76c9c3d6323d841efba81c8f98ce7e
Fixes: QTBUG-44219
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
One could guess it by assuming that disconnecting for a destroyed
receiver and disconnect() with given receiver use the same
implementation, but without closely knowing the implementation a
reader of the documentation can't know for sure.
Also add a test to prove that what the new documentation says is
really true.
Also remove an unnecessary negation in the preceding sentence.
Change-Id: I9d24442bb1a4646b89f969bad1a4d0e1eafa7534
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
When a signal/slot connection is activated, a lock on the receiver
object is taken (to be sure it doesn't get destroyed).
The path for blocking queued connections however took the lock on
the sender by accident, fix that.
Pick-to: 5.15 5.12
Change-Id: I8cd938a50eca2bf71e7bfb86768ee0c8431afdfa
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
As there is now a chance that a QMetaMethod already contains the
metatypes for its arguments, we can just query it directly (and use the
fallback to name lookup logic that already exists there).
This also allows us to avoid creating a QList of names, and only
requires us to do a name lookup in case the connection actually fails.
Change-Id: Idda30bc4b538a94476ae6c533776c22340f0030d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
And don't use int based type mapping anymore.
Change-Id: I456e76d1933ef646a7bd39ce565886b89e938a44
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
And remove one of the type id to name mapping that still
existed in QMetaType. QMetaTypeInterface can provide that,
so there's no need to have a second copy of the data.
qMetaTypeTypeInternal() can still map all the names of all
builtin types to ids. That functionality is for now still
required by moc and can't be removed yet.
Change-Id: Ib4f8e9c71e1e7d99d52da9e44477c9a1f1805e57
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
- Remove obsolete functions and enumeration values
- Remove QObject * parameter from QMetaProperty accessors
- Fix renamed enumerations in QSsl
- Fix list items to be \li
- Fix function signatures and variable names
Change-Id: I37c7e6bf2c8ff92bc7b82620bae0a27796f866ab
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Centralize the offset handling in one place and avoid lots of magic
numbers in various places. Expose the number of ints per method in
QMetaObjectPrivate as a constant, so that code in other places can
access it via private API.
Change-Id: I59790287a17ea47e6160ec65d9c8d0aaee748947
Reviewed-by: Simon Hausmann <hausmann@gmail.com>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This does the analog of 46f407126e for the
methods we care about (signals, slots, Q_INVOKABLEs). In addition to the
actual QMetaType, we store an array with offsets so that we later can do
a mapping from methodIndex to metatype.
The newly added QMetaMethod::{return,parameter}MetaType methods can then
be used to retrieve the metatypes.
This does however require that all involved types are complete. This is
unfortunately not a feasible requirement. Thus, we only populate the
metatype array on a best effort basis. For any incomplete type, we store
QMetaType::Unknown. Then, when accessing the metatype, we fall back to
the old string based code base if it's Unknown.
Squashes "moc: support incomplete types" and "Fix compile failures
after QMetaMethod change"
Fixes: QTBUG-82932
Change-Id: I6b7a587cc364b7cad0c158d6de54e8a204289ad4
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Just opened some files with spell checker turned on,
and corrected what was underlined.
Also, see QTBUG-84427.
Change-Id: I702b5bf2cfe1f23c928a6a57f117a2f571ad86ea
Pick-to: 5.15
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
The snippet didn't quote the QLibrary header correctly, and didn't
register the flags type, but only the enum type with the meta object
system.
Update example to use QItemSelectionModel instead as a more relevant
class for readers, and restructure the text a bit.
Change-Id: I572e2aaac4601087e7aa6d2ea7a8f8fd65d82539
Fixes: QTBUG-83474
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Help porting connections over by printing the connection statements.
[ChangeLog][QtCore][QObject] A logging category
qt.core.qmetaobject.connectslotsbyname was added, which will
produce about the connections made by QMetaObject::connectSlotsByName().
Task-number: QTBUG-76375
Change-Id: I9a57cae574156fc8ae5a4fb8e960c2f9a47a5e47
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
The implementation of the check has been moved to a single helper
function. The reason for doing this check in QWidgetPrivate as well,
when it's already done in QObjectPrivate, is to catch incompatible
libraries where QtWidgets is the odd one out, e.g.:
QtSomeModule 5.15.0 -> QtWidget 5.15.1 -> QtCore 5.15.0
Technically any non-final subclass of QObjectPrivate should have
this check.
Change-Id: Ia74064ad27de7335040a6d6b37d11574f818c878
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
As we want Qt's own revisions to follow the Qt versioning scheme, we
need to allow for the minor version to reset to 0 now. In order to
facilitate this, we interpret the argument passed the current Q_REVISION
macro as major version and allow for an optional minor version. Both are
encoded it into the resulting revision number.
Change-Id: I3519fe20233d473f34a24ec9589d045cdd162a12
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
A new macro that can be added in the header file parsed by moc to tell moc
to include that file in the generated file
Change-Id: I03ad702c3fcd8380371015f226ee4b7456daf132
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
... in docs, comments, and warnings. Also adopt
some occurrences around there and in the snippets.
Change-Id: Icc0aa0868cadd8ec2270dda794bf83cd7ab84160
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
src/corelib/tools/qhash.cpp:2596: (qdoc) warning: clang found diagnostics parsing \fn template <class Key, class T> template <class InputIterator> QMultiHash::QMultiHash(InputIterator begin, InputIterator end)
error: 'QMultiHash' is not a class, namespace, or enumeration
src/corelib/kernel/qobject.cpp:4593: (qdoc) warning: Undocumented parameter 'EXPORT_MACRO' in QObject::Q_NAMESPACE_EXPORT
src/corelib/global/qfloat16.cpp:129: (qdoc) warning: Cannot tie this documentation to anything
src/corelib/text/qlocale.qdoc:1204: (qdoc) warning: Overrides a previous doc
src/corelib/text/qlocale.qdoc:1187: (qdoc) warning: (The previous doc is here)
src/network/kernel/qhostinfo.cpp:597: (qdoc) warning: clang found diagnostics parsing \fn QHostInfo(QHostInfo &&other)
src/printsupport/dialogs/qabstractprintdialog.cpp:346: (qdoc) warning: clang found diagnostics parsing \fn int QAbstractPrintDialog::exec(): error: out-of-line definition of 'exec' does not match any declaration in 'QAbstractPrintDialog'
src/testlib/qsignalspy.qdoc:101: (qdoc) warning: clang found diagnostics parsing \fn QSignalSpy(const QObject *obj, const QMetaMethod &signal): error: expected unqualified-id
src/testlib/doc/src/qttest-best-practices.qdoc:28: (qdoc) warning: Can't link to 'Q_VERIFY2()'
src/widgets/kernel/qactiongroup.cpp:291: (qdoc) warning: Undocumented parameter 'b' in QActionGroup::setExclusive()
src/widgets/kernel/qactiongroup.cpp:305: (qdoc) warning: Undocumented return value (hint: use 'return' or 'returns' in the text
src/widgets/kernel/qshortcut.cpp:542: (qdoc) warning: No such parameter 'context' in QShortcut::QShortcut()
src/widgets/widgets/qdatetimeedit.cpp:632: (qdoc) warning: No such parameter 'minimumTime' in QDateTimeEdit::setTimeRange()
src/widgets/widgets/qdatetimeedit.cpp:632: (qdoc) warning: No such parameter 'maximumTime' in QDateTimeEdit::setTimeRange()
src/widgets/widgets/qdatetimeedit.cpp:632: (qdoc) warning: No such parameter 'less' in QDateTimeEdit::setTimeRange()
Change-Id: I9799b5135e84c4d811674b2d114ef27315bc12df
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Move away from using 0 as pointer literal.
Done using clang-tidy. This is not complete as
run-clang-tidy can't handle all of qtbase in one go.
Change-Id: I1076a21f32aac0dab078af6f175f7508145eece0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
QObjectPrivate::threadData used to be a QThreadData *, and was
read and written from multiple threads without proper synchronization.
As an example, it was read from QCoreApplication::postEvent and
written from QObject::moveToThread, therefore causing UB.
Port threadData to a proper atomic, removing the races. Fix all usage
points.
In general, QObject is documented to be simply reentrant,
not thread-safe, and certain bits (e.g. timers, moveToThread)
are not even reentrant. The reasoning therefore is that a given
QObject's threadData is not supposed to be touched by multiple
threads without some synchronization happening elsewhere, and
therefore relaxed loads should be sufficient.
As drive-by change: refactor QCoreApplication::postEvent.
It was particularly subtle, because it had a loop using a volatile
to cope with the possibility of the receiver object switching thread
while we tried to lock its thread's event queue.
However, volatile does not achieve any synchronization, so drop it,
and refactor the algorithm using better locking primitives.
Put this algorithm in a common place, and also reuse it from
removePostedEvents, which was lacking any synchronization.
Change-Id: Icc755f7eb418ff54b33db4bdd87fd8eaf4e82c7a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Avoid the massive code duplication in the two QObject constructors. The
only slight difference is the code path checking for isWidget; I'd say
that paying for that one is worth the price of de-duplicating.
Change-Id: I3af749738fe7d6b7adf287009d1815396a2f1407
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Change-Id: I13431e45ef329921a8846c38047f704a299a1a94
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
QML1 is not supported anymore, remove the leftover hooks for it.
Change-Id: I2900726714c5faea3523b2ebe39bb393364b3bfb
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Testlib's signaldumper functionality would crash inside
testlib as it dereferenced the sender after it was deleted.
Change-Id: I6013b75b0a121e2768429d8a3cf0339a940314f2
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The code snippet is used by both Q_ENUMS and Q_ENUM. Therefore,
remove the example snippet from Q_ENUMS documentation, as it is
obsolete. Also, move recommendation to use Q_ENUM in new code to the
very top of Q_ENUMS' documentation.
Fixes: QTBUG-63203
Change-Id: I12a9f45e0b3bd75dfe98e1ecbc45e299a688b80c
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Spell it out, or entirely remove it if it's not necessary.
Change-Id: Idc371427e9351d948245ce7b719e3457dfc27845
Reviewed-by: Matthew Woehlke <mwoehlke.floss@gmail.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
This is a follow-up to commit b7d073e990,
which refactored memory allocation of QMetaCallEvent.
Change-Id: I363256c80ee941b545e6f9c659c65556fff5c907
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
As exposed by tst_QObjectRace::destroyRace we would sometimes end up
with a double-free when destroying a QSlotObject in multi-threaded
scenarios. One free would be done in ~QObject as the receiver was being
destroyed while the other free was done when deleting a QMetaCallEvent
object after we realized it was not needed because the receiver was
destroyed.
Since we can be in a separate thread from the receiver we should lock
before referencing the connection object.
Amends b7d073e990.
Change-Id: Icb53862dc880ae9a4e5581a1a9ee693573f7d9c7
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
There are two cases:
In a BlockingQueuedConnection, QMetaCallEvent doesn't allocate memory
and instead passes already existing pointers through. A QSemaphore
is used to serialize data access between threads. So the constructor
taking a QSemaphore can be simplified to only accept an existing arg
array.
In a QueuedConnection, QMetaCallEvent needs to make deep copies of
the arguments, and memory needs to be allocated based on the number
of arguments. The previous code put the burden of memory allocation
on the code generating the event, while the memory was free'd by
~QMetaCallEvent. Instead, make it QMetaCallEvent's responsibility
to allocate and free the memory as needed, and adjust the code
generating QMetaCallEvents.
We can allocate the memory for types and pointers to arguments in a
single block, starting with the space for the array of void*, followed
by the space for the array of integers to avoid byte alignment issues.
By pre-allocating the space that's needed by three arguments, we can
avoid all mallocs for the majority of QMetaCallEvents.
Until this change has propagated through qt5.git, we need to keep the
old API that is still used by QtDeclarative around. Once QtDeclarative
has migrated to the new API, it can be removed.
Change-Id: Id7359ffc14897237ea9672dabae9ef199a821907
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Use the standard tool instead of self-made stuff that cannot decide whether
it wants to be a scoped pointer (why take()?) or a movable one (why no move
special member functions?).
Take advantage of C++11 local structs for pulling the custom deleter into
the scope where its only user is located, too.
Change-Id: I7e097a59edef9adc8455504ae94b8df0f8b9e5d2
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Because it is. It's just QCoreApplication::postEvent(), which is thread-safe.
It also _has_ to be, because we recommend to use deleteLater() to delete
QObjects that live in another thread:
Quoting the ~QObject() docs:
> Warning: Deleting a QObject while pending events are waiting to be delivered
> can cause a crash. You must not delete the QObject directly if it exists in
> a different thread than the one currently executing. Use deleteLater()
> instead, which will cause the event loop to delete the object after all
> pending events have been delivered to it.
If deleteLater() is not thread-safe, it cannot be used for one of its intended
purposes.
Change-Id: I333d506b42bdfcdff00fe6cefa234c21865625a6
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This appears to have come to some fame on the internet, so better fix
the implementation before we remove it in Qt 6.
Change-Id: Ia37ca89105b13bea1ffcdce8b2e8cd957b7bd108
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The old code used the implicit conversions from QAtomicPointer<T> to T*
and vice versa. The semantics of these differ from the ones std::atomic
uses, so we're going to deprecate these, like we did for load() and
store(), too.
This patch fixex some users of these APIs before we deprecate them.
Change-Id: I0a88bb1c359392538bb64b511bfc62381a56a468
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
A recurring problem with the Q_NAMESPACE macro is that it declares
an object (staticMetaObject) in the surrounding namespace. That
object lacks any export/import qualification to make it usable
with shared libraries.
Introduce therefore another macro to work around this issue, allowing
the user to prefix the object with an exporting macro, f.i. like this:
Q_NAMESPACE_EXPORT(Q_CORE_EXPORT)
The old macro can simply then be rewritten in terms of this new one,
supplying an empty export macro.
Note that NOT passing an argument to a macro expecting one is well
defined behavior in C99 -- the macro will expand an empty token.
Of course, MSVC doesn't like this and emits warnings. As a
workaround, use a variadic macro.
[ChangeLog][QtCore] Added the new Q_NAMESPACE_EXPORT macro. It
can be used just like Q_NAMESPACE to add meta-object information
to a namespace; however it also supports exporting of such
information from shared libraries.
[ChangeLog][Potentially Source-Incompatible Changes] Prefixing
Q_NAMESPACE with an export macro may no longer work. Use the new
Q_NAMESPACE_EXPORT macro for that use case.
Fixes: QTBUG-68014
Change-Id: Ib044a555ace1f77ae8e0244d824ec473550f3d8e
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: BogDan Vatra <bogdan@kdab.com>
The old code used the implicit conversions from QAtomicInteger<T> to T
and vice versa. The semantics of these differ from the ones std::atomic
uses, so we're going to deprecate these, like we did for load() and
store(), too.
This patch fixex some users of these APIs before we deprecate them.
Change-Id: I4877276581757cd57e042efea8296fe535a493d1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QSignalSpyCallbackSet is a set of pointers, so when we store a pointer
to it for later dereferencing, we need to use a release fence for the
store and a corresponding acquire on load, lest the two don't
synchronize with each other and we end up with a data race.
Amends a65752c71b.
Change-Id: Ic2983d76237c5c5b00eb2a3575b10beb84d57190
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Semi-automated, just needed ~20 manual fixes:
$ find \( -iname \*.cpp -or -iname \*.h \) -exec perl -pe 's/(\.|->)load\(\)/$1loadRelaxed\(\)/g' -i \{\} +
$ find \( -iname \*.cpp -or -iname \*.h \) -exec perl -pe 's/(\.|->)store\(/$1storeRelaxed\(/g' -i \{\} +
It can be easily improved (e.g. for store check that there are no commas
after the opening parens). The most common offender is QLibrary::load,
and some code using std::atomic directly.
Change-Id: I07c38a3c8ed32c924ef4999e85c7e45cf48f0f6c
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Try to replace all wordings like '.. to 0' with '.. to \nullptr'. Also
checked for 'null pointer' and similar.
Change-Id: I73341f59ba51e0798e816a8b1a532c7c7374b74a
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Use Q_TRACE_SCOPE and the corresponding naming scheme. Additionally,
don't change the behavior of the code when tracing is enabled, i.e.
continue to return early if possible.
Change-Id: I9ba9679869db1541a19bc832beede902224c52f2
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Change mentions of parameter value being "zero" to nullptr.
Clarify that when nullptr is passed to moveToThread() event processing
is stopped because the object is no longer associated with any thread.
Also, reitarete this fact in the paragraph about processing of new
events.
There's an exception to the rule that QObjects cannot be "pulled" by
moveToThread that is buried in the implementation and not mentioned
in the doc. This information is worth noting explicitly.
Change-Id: I816ff737c48d8057b39e36b566079710aeb8e690
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
This enables overriding the macro so that it translates
to 'None' in the Qt for Python context.
Change-Id: Ib3cecf57eeb0405a1929309b71e9f012a07f11cf
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
It is perfectly possible to accidentally create a parent/child
loop. This can happens by direct means (a->setParent(b);
b->setParent(a);), or some more subtle means, e.g.
class MyClass : public QObject {
MyClass() : QObject(this) {}
};
Since this is UB, add a few robustness checks to make sure the
code above crashes right away (at least in debug builds).
Change-Id: I6583c8514b4c1f8a90677b04c77b8e8f0c15dba3
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Sérgio Martins <sergio.martins@kdab.com>
If you enter a nested event loop, cause a deleteLater(), exit that event
loop, then enter a new one, the nesting count will be the same so those
are legitimate targets for deletion.
Task-number: QTBUG-73432
Change-Id: Id98140e1c2f0426cabbefffd157f975b5e291ccd
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Replace null and '\c nullptr' with \nullptr in the documentation.
Change-Id: Ib9e0cfc2eb2830b213e6523773603d56180b0998
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Try to better describe what it is and what it does. Also mention
its strongest use case.
Change-Id: Ib5c3e8a3c9b96169c139c5d7e8995a6a49d7d5e1
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Replace 0 with \nullptr in the documentation.
As a drive-by also replace some 0 with nullptr in the corresponding
code.
Change-Id: I101a61f5fad71cadb73bba9a8fd5dce6cc0836d0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
The meta object system stores enums as signed int, probably for
performance reasons. This is good enough for about 99% of the use cases.
If you try to register larger types and then access them through the
metaobject system, you can get undefined behavior.
Task-number: QTBUG-71947
Change-Id: I16b395547c22fad10b476c2c2a0768538db0a20e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QKeyEvent's detailed description already documents this:
"A key event contains a special accept flag that indicates whether the
receiver will handle the key event. This flag is set by default for
QEvent::KeyPress and QEvent::KeyRelease, so there is no need to call
accept() when acting on a key event. For QEvent::ShortcutOverride the
receiver needs to explicitly accept the event to trigger the override.
Calling ignore() on a key event will propagate it to the parent widget.
The event is propagated up the parent widget chain until a widget
accepts it or an event filter consumes it."
However, someone looking at eventFilter() won't see this, resulting in
the shortcut not being consumed and propagating elsewhere, so mention
it in the docs for eventFilter() too.
Change-Id: I14fece52133be641ccdabd81f75706cd10b64669
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Avoid a couple of branches in QMetaObject::activate().
Change-Id: I15394d1ede48be771797fc5f64a5de6387e6f814
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Use the overload using QRegularExpression instead.
Change-Id: I1bf468b248c0a3f5b2304b1831379a127093df06
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>
... instead of qPrintable(), %s, and explicit qt_error_string().
Saves 2KiB in text size on optimized Linux AMD64 GCC 9.1 builds.
Change-Id: I98b6717da1ed1b678f01167d704a96f10da47966
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Amends a952fd7d5b.
The mentioned commit started to skip QObjectPrivate::isSignalConnected() call if
the connectionLists are dirty, which lead to tst_qqmllanguage::receivers() test
inside qtdeclarative breaking.
Declarative signals were not checked if that function was not called. It
previously also wasn't called for signals higher than 64. Fix that by checking
for declarative signals after the connectionLists search is unsuccessful.
Fixes: QTBUG-71550
Change-Id: Ifcb5fdd0dc9a6b14b9f448a016fd09356a55b985
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
The bitmap cache for the first 64 signals being connected was only set when the
connection is added. It was never unset when the connection was removed.
Internal use of the connectedSignals bitmap is not hurt by it occasionally
saying a signal is connected even though it is not, since the purpose of those
checks is avoiding expensive operations that are not necessary if nothing is
connected to the signal.
However, the public API using this cache meant that it also never spotted
signals being disconnected. This was not documented. Fix the behavior by only
using the cache if it is up to date. If it is not, use a slower path that gives
the correct answer.
To avoid making disconnections and QObject destructions slower, the cache is
only updated to unset disconnected signals when new signal connections are
added. No extra work is done in the common case where signals are only
removed in the end of the QObject's lifetime.
Fixes: QTBUG-32340
Change-Id: Ieb6e498060157153cec60d9c8f1c33056993fda1
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>
We need to override this snippet for the documentation
we generate for Qt for Python, and it is easier to have
it on a separate file.
Task-number: PYSIDE-801
Task-number: PYSIDE-691
Change-Id: Ideb5b6af25024279f167137d3b65660bb9c96a7e
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Weak pointers are zeroed before destroyed() is emitted. This makes sense
because the signal is called "destroyed()", not "aboutToBeDestroyed()",
and the code has been like this for a long time.
Change-Id: Ic852fe354405e328d1922a75931e7eb7bf651b26
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Add it to configure.json and replace all occurrences of QT_NO_THREAD
with QT_CONFIG(thread). Add conditions for other features that depend
on thread support. Remove conditions where we can use the QMutex and
QThreadStorage stubs.
Change-Id: I284e5d794fda9a4c6f4a1ab29e55aa686272a0eb
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
[ChangeLog][QtCore][QObject] Fixed a bug in setProperty() that caused a
property change not to take effect if the old value compared equal using
QVariant's equality operator, but the values were not strictly equal.
Task-number: QTBUG-69744
Change-Id: I00e04a465fcf4fc1a462fffd1547885861a07a64
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Change-Id: I4f9033660c06686d7b499ec6d28be2c3b64353e2
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Martin Smith <martin.smith@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Link to the data ownership section of the QML documentation to elaborate
on the special rules that apply for invokable functions that return
QObjects.
Change-Id: I41ea9089468c9505807cf1fde22be759b397a6d3
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
We need to add the \relates command otherwise it won't appear in the documentation
Change-Id: I134776c1528445761a7539cf687e4855d39eb7a7
Reviewed-by: BogDan Vatra <bogdan@kdab.com>
Sometimes it is hard to find the line, when the warning
"QObject::connect: invalid null parameter" appears in the log.
This change adds the class names of the sender and receiver
to give a hint where to search for the wrong call to connect.
Change-Id: I00cead7d943f96d60f198cb3f0bed34ba10285c5
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Use QT_CONFIG(regularexpression), disentangle it from QT_BOOTSTRAPPED,
switch it off in the bootstrap build, remove the #ifdefs from
qregularexpression.{h|cpp}, and add QT_REQUIRE_CONFIG(regularexpression)
to the header.
qregularexpression.{h|cpp} are already correctly excluded in tools.pri
if !qtConfig(regularexpression).
Change-Id: I21de154a6a118b76f99003d3acb72ac1e220d302
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
The macro Q_DECLARE_INTERFACE declared some qobject_cast() functions
that clang-qdoc must not see in the contexts where the macro is used.
This update prevents that from happening by ensuring that Q_CLANG_QDOC
is not defined when the macro is defined.
This update also adds a \fn command for a declaration of qobject_cast()
that was missing in the documentation. There are two versions of the
function, one with a const parameter and one with a non-const parameter,
and they both share one qdoc comment.
Change-Id: Ic74d0aaae62767cd0391474ee95ae3f4f820b06e
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
When a deleteLater event is queued, a check if done if the same event
for the same receiver is queued before by scanning all pending events.
This leads to quadratic behavior, which is quite noticeable. By using
an unused bit in QObjectData, this can be prevented. Now the duplicate
event scanning in QCoreApplication is only done for the quit event.
Task-number: QTBUG-65712
Change-Id: Ie505acbbec802f91ebd0b94ac067e362c2476113
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
clang required adding template clauses to a few \fn commands.
There were also a few cases where Q_QDOC was changed to Q_CLANG_QDOC
and a few cases where special declarations for qdoc were removed in
favor of the actual declarations.
Unfortunately, a few qdoc warnings remain unfixed for classes
QObject and QMetaType, but these might be caused by minor bugs
in clang-qdoc itself, so they will be fixed there.
Change-Id: Ib586628cb6d2aa9cf4bcad303b5af09b412a7e57
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
old style connects have protection against null sender and null receiver,
but new style only had against null sender.
Change-Id: Ie555ac078412918e60c3b60830fe1f3abfb7f5af
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
There were four dummy declarations for struct QMetaObject that were
needed by old qdoc to allow documentation of some very complicated
function signatures that old qdoc could not parse. clangqdoc can now
parse these signatures, but, unfortunately, old qdoc is still used to
parse \fn commands in .cpp and .qdoc files, so the dummy declarations
are still needed in struct QMetaObject. However, clangqdoc now
sees that two of the four dummy declarations are actually duplicates
of the other two, and then old qdoc complains when it can't find all
four of the function nodes, when it parses the four \fn commands.
This update removes the duplicate dummy declarations and the two
redundant \fn comments. The remaining two \fn comments are
updated accordingly.
This change also moves a couple of qdoc comments so they are located
with the function definitions that they are documenting.
Change-Id: I85e2492ba0380b01c3700b3dc7db0913d6429701
Reviewed-by: Martin Smith <martin.smith@qt.io>
This change supplies several missing class qualifiers for
parameter types and function return types.
Change-Id: I569026e4da0948902fcc13557003d3748b85dd82
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Remaining uses of Q_NULLPTR are in:
src/corelib/global/qcompilerdetection.h
(definition and documentation of Q_NULLPTR)
tests/manual/qcursor/qcursorhighdpi/main.cpp
(a test executable compilable both under Qt4 and Qt5)
Change-Id: If6b074d91486e9b784138f4514f5c6d072acda9a
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
They're meant to be subclassed, so we need to avoid slicing.
Change-Id: I384b65478f728c69aaf1edbc985b3fb4150191fe
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
In preparation of Qt6 move away from pre-C++11 macros.
Change-Id: I44126693c20c18eca5620caab4f7e746218e0ce3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Removing connections and resizing the signal vector now
happens in a way that will not interfere with activate(),
as the old objects won't get deleted if we are somewhere
inside a signal emission.
This means that we don't need to lock the senders mutex
in activate anymore, as long as the reference counting
on the ConnectionData is atomic and we are in the senders
thread.
This implies that we now need to lock the receivers mutex in
queued_activate() abd blocking queued activation to ensure
it hasn't been deleted while we are emitting.
In addition, some precautions need to be taken to not read
from the receiver without holding the lock, as it could get
deleted while we're activating (if it's in a different thread).
To make that possible store the receivers thread id in the
connection data.
Use atomic pointers for all variables that can get modified
with the signalSlotLock() held and that are being read
without the lock being held.
This gives us a very nice additional speed improvement
for signal emissions.
without change with change
string based connect: 3287 2436
pointer based connect: 3941 3265
not connected: 403 400
disconnected: 460 489
5 slots connected: 9112 4515
Change-Id: Ib7324bb74c389dcc3b6581a03c31469a6e589fc2
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
And use it to clean up the reimplementations in Qt DBus.
Change-Id: I8e3fe35e8db6405cbcbfb45b42a8f2efecc1cef0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Giuseppe D'Angelo
Marc Mutz
Fabian Kosmale
Lars Knoll
Paul Wicking
Ivan Solovev
Alexandru Croitor
Andrei Golubev
Andreas Buhr
Topi Reinio
Zhang Sheng
Mitch Curtis
Allan Sandfeld Jensen
Friedemann Kleint
Andreas Hartmetz
Ivan Tkachenko
Qt Forward Merge Bot
Volker Hilsheimer
Tor Arne Vestbø
Ulf Hermann
Olivier Goffart
Liang Qi
Andre Hartmann
Mårten Nordheim
Simon Hausmann
Kai Koehne
Christian Ehrlicher
Milian Wolff
Miłosz Kosobucki
Venugopal Shivashankar
Thiago Macieira
Robert Loehning
Kari Oikarinen
Cristian Maureira-Fredes
Frederik Gladhorn
Lars Schmertmann
Jarek Kobus
Martin Smith
Erik Verbruggen
Sergio Martins
Kevin Funk