The slot object was deleted after the mutex was relocked, which caused
a deadlock in case the functor destructor locked the same mutex again.
Change-Id: I5b4fb22fdb4483f91c89915872bfd548c31b0eea
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
q_func() which is declared in Q_DECLARE_PUBLIC is usually private.
We should use q_ptr directly in QObjectPrivate::connect, otherwise
it does not compile when trying to access the private q_func
Change-Id: I235165a0994327102dbb31c390c2cafdffe806dc
Reviewed-by: Kurt Pattyn <pattyn.kurt@gmail.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
For example, QObject is non copyable (its copy constructor is deleted or
private via Q_DISABLE_COPY). It should still be allowed to pass a reference
to a QObject as an argument to as signal (or slot).
This fixes a compilation failure.
Task-number: QTBUG-36119
Change-Id: I9bcf477e347d69fdae2543c99781b6421883be78
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
According to docs DynamicPropertyChange event should be sent from
setProperty function only when property is added, removed or
changed.
Change-Id: I080a27a4119a63580b03172f4b5b367338c6f440
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
tst_QObject is getting big, so make a separate test for QSignalBlocker,
but leave parts of signalsBlocked() in tst_QObject as that seemed to
have been the only check for blockSignals(true) actually blocking signal
emission.
Change-Id: I1cfac035e0e39203eea8626d43f316cc6244ee86
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
When QSignalBlocker was reviewed, move semantics were asked for.
This patch add them.
This makes QSignalBlocker usable as a by-value argument (to transfer
control of signal blocking into a function) as well as as a return
value (to transfer control of signal blocking out of a function).
Change-Id: I714aa2a283bb33dba76e860649e88ed202e913c5
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
It's unexpected that all messages generated by the stream version
of qDebug and friends have a trailing space. It also makes switching
to categorized logging (which only supports the stream version) difficult,
since all autotests checking for debug output would have to be adapted.
Task-number: QTBUG-15256
Change-Id: I8d627a8379dc273d9689f5611184f03607b73823
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
As the last line in the QObject destructor, we call setParentHelper(0) to
remove ourselves from the parent. In the process of that we also initiate the
QML parentChanged callback. The first thing that parentChanged callback used to
do (but now does it too late, after 26350b5ceafa0ade1328037f6234a7d288eb8f48 in
qtdeclarative) is to check if the object was deleted and then return. We could
re-introduce the check there, but I think it's cleaner to not bother calling
the callback on a dead object in the first place.
Change-Id: Ia4d43b65a9b3744a451b4c312a2d6f9c0e3b67dc
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
For the conflicts in msvc_nmake.cpp the ifdefs are extended since we
need to support windows phone in the target branch while it is not there
in the current stable branch (as of Qt 5.2).
Conflicts:
configure
qmake/generators/win32/msvc_nmake.cpp
src/3rdparty/angle/src/libEGL/Surface.cpp
src/angle/src/common/common.pri
src/corelib/global/qglobal.h
src/corelib/io/qstandardpaths.cpp
src/plugins/platforms/qnx/qqnxintegration.cpp
src/plugins/platforms/qnx/qqnxscreeneventhandler.h
src/plugins/platforms/xcb/qglxintegration.h
src/widgets/kernel/win.pri
tests/auto/corelib/thread/qreadwritelock/tst_qreadwritelock.cpp
tests/auto/corelib/tools/qdatetime/tst_qdatetime.cpp
tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp
tools/configure/configureapp.cpp
Change-Id: I00b579eefebaf61d26ab9b00046d2b5bd5958812
Only DirectConnection is tested
Change-Id: I525c6a65428489c34e58d1d9600b4e5ebda733b9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
I don't think I ever worked on a project of non-trivial
size that didn't at some point add a QSignalBlocker.
This commit adds code, tests and documentation. Later
commits will convert naked blockSignals() calls to use
QSignalBlocker.
The implementation is purely inline to avoid the heavy
overhead of cross-dll function calls for this miniscule
task. This should not be a problem because QSignalBlocker
only uses public API and a pattern that we anyway need
to keep working until Qt 6, at least, so even changing
the implementation later will be no problem as the old
implementation lurking in non-recompiled code will be
acceptable, too.
This implementation is an evolution from KDTools'
KDSignalBlocker, with the following changes:
- Implements unblock() and reblock()
- Uses the return value of blockSignals() instead of a
separate signalsBlocked() call.
Change-Id: I1933dfd72a0f5190324be377cfca3c54cf3d6828
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Up to now, it was only possible to connect to functors in a direct
way, without being capable of using Qt::ConnectionType. This patch
allows for specifying a receiver for Functors and function
pointers, hence making it possible to specify effectively the
connection type.
To do this properly, it was needed to add an enum in FunctionPointer
representing whether the considered function is a member function
or not, to reduce ambiguity upon overloaded calls.
Moreover, now senders are checked for the existence of a slot obj
as well. This way, should the context be freed, the slot obj and
the functor contained in it will be freed as well.
On a side note, connecting to a static slot
(like QCoreApplication::quit) specifying the receiver object is
now compiling.
Change-Id: I46474099413b1dc6ca4db9934191d469baeef070
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Q_STATIC_ASSERT gives better error with C++11 enabled.
Aslo the qt_check_for_QOBJECT_macro had warning on some compiler since
it used null reference
Change-Id: Ic6115da800064b00c50a5762f0b79f5f656bf750
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
To be consistent with signals which are public since Qt5.
Change-Id: I633077e37d0851b118c22da0681e8b8b1892ddbb
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
This prevents deadlocks in case the destructor re-enters.
(Example: a functor containing a QSharedPointer of a QObject)
This also fixes a leaked slot object in disconnectHelper.
Change-Id: Ia939790e3b54e64067b99540974306b4808a77f2
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
In QML it is common to connect signals to slots that are implemented as
JavaScript functions. QML used to maintain separate data structures that
mirrored the QObject connection list and kept references to the JavaScript
objects necessary to perform the call on signal activation.
The recent addition of functor based QObject::connect makes it possible
to store this information in QSlotObjectBase sub-class instead, which
eliminates any extra bookkeeping.
This patch adds internal connect and disconnect overloads to QObjectPrivate
that allow for connecting QObject *sender, int signalIndex to a given
QSlotObjectBase and similar for disconnect.
Change-Id: I90f43d13eb95bd884d752484cf4faacc446f4d6a
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Fix connection to pointer to member signal that belongs to the base
class, but whose type is a pointer to a member of the derived class.
The current code only use the QMetaObject of the type coming from the
function type to look up the signal id. But if the signal was casted
to a pointer to member function of a derived type, then we also need to
look in the base classes
Change-Id: Ib98fc38f63942946acb34d9f83c100991d58e4e5
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
When variadic templates and decltype are supported, detect the best
overload of operator() to call.
Currently, the code takes the type of the operator(), which requires that
the functor only has one, and that it has no template parameter.
This feature is required if we want to connect to c++1y generic lambda
(N3418)
Change-Id: Ifa957da6955ea39ab804b58f320da9f98ff47d63
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
While adding a test case for the new behavior, two issues
with the connectSlotsByName implementation came up:
1. for auto-connected slots that don't exactly match a signal,
a 'compatible' one is searched. There might be more than
one of those. The implementation randomly picks any.
2. The "No matching signal for %s" warning gets printed even for
slots that can never be connected via connectSlotsMyName
anyway (e.g. "on_something"). This is inconsistent.
This fixed both: an explicit warning is printed if more than one
'compatible' signal is found and the "No matching signal for %s"
warning is only printed if the slot adheres to the full
"on_child_signal()" naming convention.
In the process I added comments and changed the code slightly to
make it more readable and explicitly hint at non-obvious behavior.
Change-Id: Icc8e3b9936188d2da8dfff9f0373c8e5c776eb14
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
QMetaObject::connectSlotsByName(QObject* o) creates a list of all
children to look for signals that match slots of o. This changeset
simply adds the object o itself to that list.
The motivation is to finally fix the long standing QtCreator bug
QTCREATORBUG-6494. Where executing 'Go to slot...' and choosing
'accepted()' for a simple QDialog named 'MyDialog' will add a
on_MyDialog_accepted() slot to MyDialog. That slot never gets
connected. More details may be found in the linked QTBUG-7595.
Task-number: QTBUG-7595
Task-number: QTCREATORBUG-6494
Change-Id: I35f52761791af697eabb569adb5faee6fae50638
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
I changed the existing test-case code to make it more scalable
in terms of adding more connectSlotsByName related tests. The
old "manual list of ints"-method was really not developer friendly.
This is a preparation for a subsequent modification of
connectSlotsByName behavior.
Change-Id: Ib760e52631ce4b5ae2a3ebdb4854849ff6c93bfe
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
This fixes QMetaType detection of const reference arguments in signals
while connecting using the new syntax and Qt::QueuedConnection
const references should have the same QMetaType as non references.
That means we need to remove the const reference while getting the
QMetaType.
Change-Id: I9b2688da7fb9ae985aec0d8fa62a1165357ffe71
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Unlike the previous implementation, this implementation is locked:
only one initialisation is ever run at the same time. It is
exception-safe, meaning that a throwing constructor will restart the
process.
Also, start using the thread-safe behaviour that GCC has offered for a
long time and C++11 requires.
Change-Id: I20db44f57d258923df64c0051358fd0d9a5ccd51
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: David Faure (KDE) <faure@kde.org>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
When disconnect()ing through a QMetaObject::Connection, if the
QObjectPrivate::Connection contains a slot object, deref it, so
that it will be destroyed before the next run of cleanConnectionList.
Previously, a copy of the functor passed to connect() was kept until
QObjectPrivate::cleanConnectionLists was called (by adding a new signal,
or the sender was destroyed), even after a successful call to
disconnect(). That is, we were keeping that copy allocated without
any good reason.
Change-Id: Ie6074ea797df1611cb995dec07c5b5a742360833
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
The QObjectPrivate::Connection refcount was not decreased
when disconnect()ing, therefore it was kept alive by the
owning QMetaObject::Connection object.
This removes a leak in case the QMetaObject::Connection
survives the sender object, after a successful disconnect().
Change-Id: Ie2ea59b269a0e589ae23c1457df7533be77c0797
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
More QVERIFY()s were added in the meanwhile to the test function,
so we can drop this one.
Change-Id: If6f137f45ba606b61d6a7004556a667ed316b61f
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Before, the functor slot (or lambda expression) had to have the same amount
of arguments as the signal.
This shown to be a big problem to be able to connect to signals that had
a QPrivateSlot.
This implementation use the type of the operator() of the functor to
know how many arguments we have.
As a bonus, we also can check the arguments in a static assert.
The test comes from https://codereview.qt-project.org/#change,38703
But this patch also works without variadic template
If the compiler does not support decltype, we workaround the lack of it
by using another level of indirection.
Change-Id: I9850b43e8caf77356a2ec3f4c0b0ed532d96029e
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Pointer to const member function have a different signature, and hence
need their own traits code.
Change-Id: Ie4b2434a412f412444fb07ef1388a37cab105ecd
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Normalise all signal/slot signatures in tests/*/corelib,
except in tst_QObject, where they might be test data.
Change-Id: Id4e101f285b1676bb583b0afae06d235e599e24b
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Change copyrights and license headers from Nokia to Digia
Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Qt 5.0 beta requires changing the default to the 5.0 API, disabling
the deprecated code. However, tests should test (and often do) the
compatibility API too, so turn it back on.
Task-number: QTBUG-25053
Change-Id: I8129c3ef3cb58541c95a32d083850d9e7f768927
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
This is a simplified port of KDTools' KDAB_SET_OBJECT_NAME.
It simply assigns the variable name as the objectName of
a QObject, uic-style. It uses a small helper function so
that it works on references as well as pointer variables.
QLabel label;
QLabel *pLabel = new QLabel();
Q_SET_OBJECT_NAME(label);
Q_SET_OBJECT_NAME(pLabel);
Change-Id: I25fec0c90f33249a3ea5d2dd622ab708019fd101
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: David Faure <faure@kde.org>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Make test projects declare TEST_HELPER_INSTALLS rather than calling a
function exported by testcase.prf. load(testcase) may be unsafe, as
testcase.prf should be processed after default_post.prf.
Fixes silent disabling of various autotests.
Change-Id: I56b35ffd653a637ad5ab18d64dd1a1edadfac59f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
Reviewed-by: Kurt Korbatits <kurt.korbatits@nokia.com>
Store the signal index in QObjectPrivate::Connection, thereby making
it available in "implicit" disconnect contexts (i.e., receiver
deletion).
This change does not cause the size of QObjectPrivate::Connection
to grow (still 40 bytes on 32-bit Linux, 72 bytes on 64-bit Mac).
Valgrinding the new benchmark indicates that the percentage of the
time spent in the QObject destructor increased from 7.8% to 8.4%
on ia32, for that particular stress test; the increase is the
combined cost of calling metaObject(), QMetaObjectPrivate::signal(),
and disconnectNotify() for one connection. In practice, the measured
wallclock time increased by about 3ms for a 500ms run (which
repeatedly constructs, connects, and destroys an object).
Task-number: QTBUG-4844
Change-Id: I1beb01c753f31542fc0acb62edb4c6d165fcc5b4
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
These tests have passed a parallel stress test on all three of Linux,
Mac, Windows. Mark them with CONFIG+=parallel_test to allow CI to run
them in parallel, saving time.
Change-Id: I19fd333c3c645a67374ca998f6c8530dd236b0f8
Reviewed-by: Toby Tomkins <toby.tomkins@nokia.com>
This completes the transition from connectNotify(const char *) and
disconnectNotify(const char *) to the new QMetaMethod-based
functions.
Removed the old connectNotify autotests and renamed the
connectNotifyMethodXXX autotests to connectNotify, since there is
no longer any ambiguity about which overload is being tested.
Change-Id: Icf108a80177155f21bb73c165fb8ab5d4e997bc2
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
This operation should be a no-op anyway, since at this point in time,
the fromAscii and toAscii functions simply call their fromLatin1 and
toLatin1 counterparts.
Task-number: QTBUG-21872
Change-Id: I38f97ad379deafebef02c75d611343ca15640c8a
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
This is much more performant than calling QObject::receivers(const char*)
Can be used instead of connectNotify in some cases.
Change-Id: I19e0933f678f171f515d9a0f69f0ad4fb7d894b4
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
qVariantValue and qVariantCanConvert are Compatibility members, while in
Qt4.8 they are marked as Qt 3 Support Members.
qVariantFromValue and qVariantSetValue are Obsolete members.
Change-Id: Ie8505cad1e0950e40c6f6710fde9f6fb2ac670fd
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
Reimplementations of connectNotify() and disconnectNotify() can
assume that the signal argument is in normalized form, but after the
introduction of the Qt5 meta-object format, it could happen that it's
not.
The problem is that the internal QArgumentType class, which attempts
to resolve a typename to a type id, was calling QMetaType::type().
QMetaType::type() falls back to trying the normalized form of the
typename if the original argument can't be resolved as a type (this
behavior isn't documented, but that's how it works). This means that
e.g. QMetaType::type("const QString &") returns QMetaType::QString.
Since QMetaObjectPrivate::indexOfMethodRelative() (more specifically,
the methodMatch() helper function) prefers to compare type ids
over typenames (since the type ids are stored directly in the meta-
object data for built-in types), the method lookup would *succeed*
for signatures with non-normalized built-in typenames as parameters.
QObject::connect() would then think that it did not have to
normalize the signature (see "// check for normalized signatures").
The consequence was that the original, non-normalized form got
passed to connectNotify().
This commit introduces an internal typename-to-type function that
is the same as QMetaType::type(), except it doesn't try to normalize
the name. This way, the only place where normalization can occur in
the signature-to-meta-method processing is through the calls to
QMetaObject::normalizedSignature() in QObject::connect() itself.
The implication is that there are now cases where the method
signature will be decoded and processed twice, where processing it
once was sufficient before. On the other hand, it is consistent with
the pre-Qt5-meta-object behavior, where we predict that the
signature is already normalized, and only perform (comparatively
costly) normalization if the initial lookup fails.
Change-Id: Ie6b60f60b0f9a57ebd378d980329dac62d57bbd9
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
