Silence a warnings flood about qVariantFromValue(), QString::null
and QWeakPointer::data().
Change-Id: I73347190c0fa396b39b9efd00447cf24e48259a0
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
QMetaObject::newInstance returns a QObject, thus it's not possible to
create a new instance of a Q_GADGET using this function. Previously, we
returned a non-null QObject pointer for such scenarios, which then
leads to crashes when one tries to use it. Now, we check whether the
meta object inherits QObject's meta object, and error out early
otherwise.
Change-Id: I7b1fb6c8d48b3e98161894be2f281a491963345e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The first replacement had missed objective-C++ code some places ourside
the src dir.
In C-files Q_DECL_NOTHROW is replaced with Q_DECL_NOEXCEPT as we still
need to turn it off when compiled in C mode, but can get rid of the old
NOTHROW moniker.
Change-Id: I6370f57066679c5120d0265a69e7e378e09d4759
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QTimer::singleShot is optimized for zero timeouts when using the API
taking a string method name. This optimization was not used for the API
taking a PMF or functor. This patch adds it, making the various API
calls behave similarly from a performance point of view.
The approach taken here requires a QObject context object. If none is
available, e.g. a nullptr was passed explicitly, or the
QTimer::singleShot(O, Functor) API was used, the optimization could
not easily be applied. This is not only bad from a performance POV,
but also poses as a potential source for heisenbugs: Using the
different API versions of QTimer::singleShot would use different code
paths internally, which then would not ensure the expected slot call
order. This problem actually existed already when mixing the
string-based slot syntax with PMF/functors in the QTimer::singleShot
API.
This patch overcomes this hurdle and fixes all of the above: When we
encounter a 0ms single shot timer, and no QObject context object is
available, we fall back to the main thread, or create a temporary
QObject for any other thread. The updated and extended benchmark
shows that this is still a significant performance improvement
over using a timer:
********* Start testing of qtimer_vs_qmetaobject *********
Config: Using QtTest library 5.14.0, Qt 5.14.0 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 8.2.1 20181127)
PASS : qtimer_vs_qmetaobject::initTestCase()
PASS : qtimer_vs_qmetaobject::bench(singleShot_slot)
RESULT : qtimer_vs_qmetaobject::bench():"singleShot_slot":
7.48 msecs per iteration (total: 748, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(singleShot_pmf)
RESULT : qtimer_vs_qmetaobject::bench():"singleShot_pmf":
7.20 msecs per iteration (total: 720, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(singleShot_functor)
RESULT : qtimer_vs_qmetaobject::bench():"singleShot_functor":
6.79 msecs per iteration (total: 679, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(singleShot_functor_noctx)
RESULT : qtimer_vs_qmetaobject::bench():"singleShot_functor_noctx":
6.92 msecs per iteration (total: 693, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(invokeMethod_string)
RESULT : qtimer_vs_qmetaobject::bench():"invokeMethod_string":
7.34 msecs per iteration (total: 735, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(invokeMethod_pmf)
RESULT : qtimer_vs_qmetaobject::bench():"invokeMethod_pmf":
6.90 msecs per iteration (total: 690, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(invokeMethod_functor)
RESULT : qtimer_vs_qmetaobject::bench():"invokeMethod_functor":
6.62 msecs per iteration (total: 662, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(singleShot_slot)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"singleShot_slot":
7.45 msecs per iteration (total: 745, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(singleShot_pmf)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"singleShot_pmf":
7.46 msecs per iteration (total: 747, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(singleShot_functor)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"singleShot_functor":
6.70 msecs per iteration (total: 671, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(singleShot_functor_noctx)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"singleShot_functor_noctx":
13.75 msecs per iteration (total: 1,376, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(invokeMethod_string)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"invokeMethod_string":
7.05 msecs per iteration (total: 706, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(invokeMethod_pmf)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"invokeMethod_pmf":
6.70 msecs per iteration (total: 670, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(invokeMethod_functor)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"invokeMethod_functor":
6.58 msecs per iteration (total: 658, iterations: 100)
PASS : qtimer_vs_qmetaobject::cleanupTestCase()
Totals: 16 passed, 0 failed, 0 skipped, 0 blacklisted, 20977ms
********* Finished testing of qtimer_vs_qmetaobject *********
Without the change to qtimer.cpp, the results are:
********* Start testing of qtimer_vs_qmetaobject *********
Config: Using QtTest library 5.14.0, Qt 5.14.0 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 8.2.1 20181127)
PASS : qtimer_vs_qmetaobject::initTestCase()
PASS : qtimer_vs_qmetaobject::bench(singleShot_slot)
RESULT : qtimer_vs_qmetaobject::bench():"singleShot_slot":
7.45 msecs per iteration (total: 745, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(singleShot_pmf)
RESULT : qtimer_vs_qmetaobject::bench():"singleShot_pmf":
112.84 msecs per iteration (total: 11,285, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(singleShot_functor)
RESULT : qtimer_vs_qmetaobject::bench():"singleShot_functor":
115.62 msecs per iteration (total: 11,563, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(singleShot_functor_noctx)
RESULT : qtimer_vs_qmetaobject::bench():"singleShot_functor_noctx":
110.81 msecs per iteration (total: 11,082, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(invokeMethod_string)
RESULT : qtimer_vs_qmetaobject::bench():"invokeMethod_string":
7.04 msecs per iteration (total: 704, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(invokeMethod_pmf)
RESULT : qtimer_vs_qmetaobject::bench():"invokeMethod_pmf":
6.62 msecs per iteration (total: 662, iterations: 100)
PASS : qtimer_vs_qmetaobject::bench(invokeMethod_functor)
RESULT : qtimer_vs_qmetaobject::bench():"invokeMethod_functor":
6.62 msecs per iteration (total: 662, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(singleShot_slot)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"singleShot_slot":
7.45 msecs per iteration (total: 746, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(singleShot_pmf)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"singleShot_pmf":
118.42 msecs per iteration (total: 11,842, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(singleShot_functor)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"singleShot_functor":
119.35 msecs per iteration (total: 11,936, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(singleShot_functor_noctx)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"singleShot_functor_noctx":
130.96 msecs per iteration (total: 13,096, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(invokeMethod_string)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"invokeMethod_string":
8.08 msecs per iteration (total: 808, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(invokeMethod_pmf)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"invokeMethod_pmf":
6.79 msecs per iteration (total: 680, iterations: 100)
PASS : qtimer_vs_qmetaobject::benchBackgroundThread(invokeMethod_functor)
RESULT : qtimer_vs_qmetaobject::benchBackgroundThread():"invokeMethod_functor":
7.49 msecs per iteration (total: 749, iterations: 100)
PASS : qtimer_vs_qmetaobject::cleanupTestCase()
Totals: 16 passed, 0 failed, 0 skipped, 0 blacklisted, 153995ms
********* Finished testing of qtimer_vs_qmetaobject *********
Additionally, this patch adds a unit test to verify that the slot call
order for 0ms single shot timers is followed while mixing the various
API versions. It fails without this patch but passes now.
Finally, another test is added to verify that using QTimer::singleShot
before a QCoreApplication was constructed is still working properly.
Change-Id: I0d6211554b6198cb3e527be9ec3adc572b1b54ee
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Removes handling of missing Q_COMPILER_NULLPTR, Q_COMPILER_AUTODECL,
Q_COMPILER_LAMBDA, Q_COMPILER_VARIADIC_MACROS and
Q_COMPILER_AUTO_FUNCTION.
We haven't supported any compilers without these for a long time.
Change-Id: I3df88206516a25763e2c28b083733780f35a8764
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Put all connections that get disconnected into a singly
linked orphaned list.
Whenever the refcount on the connectionData drops down to
one, this list can safely be cleared, even with the planned
removal of locking in activate().
Use an id integer in the connection to acoid activating newly
added connections.
Fixes: QTBUG-72649
Change-Id: Ide3d116ae7fc9ca497598c1c2b71d43b4339c92d
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
[ChangeLog][QtCore][QVariant] Fixed a bug that caused isNull() to be
true after downcasting a QObject* payload using convert().
Fixes: QTBUG-73196
Change-Id: Ifda15952f873d7142c95609b69ac424bbf16b723
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>
Conflicts:
src/corelib/tools/qlocale_data_p.h
(Regenerated by running the scripts in util/local_database/)
src/gui/opengl/qopengltextureuploader.cpp
Done-With: Edward Welbourne <edward.welbourne@qt.io>
Done-With: Allan Sandfeld Jensen <allan.jensen@qt.io>
Change-Id: I12df7f066ed0a25eb109f61c4b8d8dea63b683e2
If the deadline is far in the future, the conversions to nanoseconds
or internal arithmetic may overflow and give an invalid object, thus
the deadline may end up in the past. Added a test to the testlib
selftest for sleep.
[ChangeLog][QtCore][QDeadlineTimer] Fixed integer overflows
leading to immediate timeouts.
Task-number: QTBUG-69750
Change-Id: I9814eccdf9f9b3add9ca66ec3e27e10cd5ad54a8
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Remove remaining handling of missing support for rvalue refs.
Change-Id: I78bab8bccfeeb9c76f464f345874364a37e4840a
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
[ChangeLog][QtCore][QMetaObject] Non-copyable lambdas can now be used
with invokeMethod(). For consistency reasons, the functor object is
now always moved.
Fixes: QTBUG-69683
Change-Id: I66ff5e21d6d1926f0f7c5f8c304bed1a90b69917
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Blacklisting did not work as blacklist should have contained osx
instead macos
Change-Id: Ifd76a38d371ccce545eb5df030aaa819b00a5b48
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>
This checks that intenalHwnd in QEventDispatcherWin32::remainingTime is
initialized. If calling remaningTime, before createInternalHwnd
is called, the timeout member in the WinTimerInfo struct is not
initialized and contains a random value. This adds a check for that and
in that case returns the requested timer interval as the timer has not
yet been started. createInternalHwnd is called on the first request to
process events.
It also adds a test for checking the remaining time. But the issue can
only be seen if solely running the remainingTimeInitial test in
tst_QTimer. If running the test along side another test the other
test likely calls processEvents indirectly, which hides the issue. I
don't know if this is an issue in practice (the bug has been there
for as long a the git history goes back, 2011), but it causes the
basic_chrono test to fail if run as the only test.
Change-Id: I05c35105da778912dedf8d749aa7c953841d986e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Before this the remaining time in the two tests 'remainingTime' and
'basic_chrono' had to be within the interval [100,200]. This relaxes
that to [50,200]. This test seems to be failing a lot when staging
changes in gerrit. I can reproduce some of the problem when putting a
lot of load on my system and running the tests, then remaining time is
very random.
Also removes the blacklist of remaingTime on Windows and macOS, as
basic_chrono and remaningTime tests are basically the same. The
tests also fails on Linux some times in gerrit.
I was also thinking one could:
- blacklist both tests
- remove interval requirements; just check remaining time is [0,200]
- remove the tests
Task-number: QTBUG-61013
Change-Id: I5c8f0754d059598e023fe8e5d511f4a50bb4bac2
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Useful in contexts such as other QDebug operators, where the class
is already known, and the full scope of the flags is not needed.
Change-Id: I546381b1722c9c846e2412e56763563b8f625212
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Useful in contexts such as other QDebug operators, where the class
is already known, and the full scope of the enum is not needed.
Change-Id: Ibd04b1fd4f0f914c7224a007fc248d4ebabcde3e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
tr() recognizes %n and %Ln. it offers no way to escape lone percent
signs, which implies that they must be interpreted verbatim, which is
what the code actually does. except that it would run off the end if the
% appeared at the end of the string.
Fixes: QTBUG-57171
Done-with: Mateusz Starzycki <mstarzycki@gmail.com>
Change-Id: Icf81925c482be1ea66ec8daafb3e92ad17ea7fab
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
qtbase/src/corelib/kernel/qmetatype.cpp: In static member function ‘static void QMetaType::destroy(int, void*)’:
qtbase/src/corelib/kernel/qmetatype.cpp:2599:27: error: ‘info.QMetaType::m_destructor’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (m_typedDestructor && !m_destructor)
~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
qtbase/src/corelib/kernel/qmetatype.cpp:1868:15: note: ‘info.QMetaType::m_destructor’ was declared here
QMetaType info(type);
^~~~
qtbase/src/corelib/kernel/qmetatype.cpp:2600:26: error: ‘info.QMetaType::m_typedDestructor’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
m_typedDestructor(m_typeId, data);
~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
qtbase/src/corelib/kernel/qmetatype.cpp:1868:15: note: ‘info.QMetaType::m_typedDestructor’ was declared here
QMetaType info(type);
^~~~
The extended (not inlined) function may be called on a half
initialized invalid instance.
Change-Id: I26d677a8ad2bd0c5846233f06393e774d377936d
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
All types that can be trivially copied and destructed are by definition
relocatable, and we should apply those semantics when moving them in
memory.
Types that are trivial, are by definition not complex and should be
treated as such.
[ChangeLog][QtCore] Qt Containers and meta type system now use C++11
type traits (std::is_trivial, std::is_trivially_copyable and
std::is_trivially_destructible) to detect the class of a type not
explicitly set by Q_DECLARE_TYPEINFO. (Q_DECLARE_TYPEINFO is still
needed for QList.)
Done-with: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Change-Id: Iebb87ece425ea919e86169d06cd509c54a074282
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Both use same source, but link without and with Qt Gui library.
Task-number: QTBUG-71751
Change-Id: I5643a07a8067f5fc10fc66f717f19bc3e16a33ab
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
The test has been failing over and over since it was removed from the
blacklist. Obviously it is not stable.
This is a partial revert of commit
b10ee45546.
Task-number: QTBUG-71773
Change-Id: Ie2588538ee704652c2f09ce6ad947da3011e7dad
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
The test needs to also unregister its timers when it fails. Therefore,
wrap the registering and unregistering in an RAII class.
Task-number: QTBUG-71773
Change-Id: I6ef44e580880deecb32763b5b0cd71e1c26929be
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Follow the pattern of char and float, and treat shorts as a more generic
type in QVariant::canConvert()
Task-number: QTBUG-60914
Change-Id: Ib1cc7941ee47cb0fc0098f22f98a03cd6f6b63fe
Reviewed-by: Thiago Macieira <thiago.macieira@intel.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>
