Commit Graph

44812 Commits

Author SHA1 Message Date
Leander Beernaert
73301b252a CMake: Depend on automoc timestamp for metatypes extraction
When using CMake 3.17 with any of the Ninja generators we can leverage
a dependency on the timestamp file produced by CMake's automoc to avoid
having a custom target run on every build.

Change-Id: Ia70d2730cc8296d0a43642655fe69b555cb393c0
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 16:14:35 +01:00
Leander Beernaert
fda03bfed0 CMake: Convert Core_qobject to a static module
This removes the last add_custom_target when used in conjunction with
the Ninja and CMake >= 3.17.

Change-Id: Ibb9bdff4b5bc00542d2a5ba631cea7e0510ad5e9
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 16:14:19 +01:00
Leander Beernaert
98fb632f47 Add QT_MODULE_SKIP_MODULE_INCLUDES property
When a Qt module has this property set, when we generate the
QtModuleDepends header file and find this module it will not be added.
This is required to be able to create a Core_qobject module, as it does
not have any headers.

Change-Id: Iaea1080919d05ace12e48693e02d8c0f4c669339
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 16:14:15 +01:00
Shawn Rutledge
af00402d64 Remove QImageIOHandler::name()
It has been marked obsolete for a very long time, and deprecated
in code since f9e6f8efda.

Change-Id: Ib351025369584bf3b8a3a17f980a567d2b9556ca
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
2020-03-05 16:09:40 +01:00
Lars Knoll
d1882c79f2 Get rid of some QT_STRICT_ITERATORS leftover
Amends 06456873fc.

Fixes: QTBUG-82611
Change-Id: I8b1e01549f3e910b85a571833237e38a7c2b49a9
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2020-03-05 16:08:30 +01:00
Alexandru Croitor
4f7cc72298 CMake: Handle conditions in third party find modules correctly
Previously the FindWrap modules checked for hardcoded features
when deciding whether to use a bundled library or not. This proved
not to work correctly because features were not available when
the find modules were processed.

Introduce a new CMake API call that needs to be manually called
after an add_subdirectory call which declares a bundled library.

The call will check for the existence of the bundled target, and will
then set a cache variable QT_USE_BUNDLED_Bundled<TargetName>.

The same variable is written into a FindWrapFooConfigExtra.cmake file
which will be loaded by the appropriate FindWrap module. The module
can that use that variable to decided whether to link against the
bundled library or the system library.

Change-Id: I75e9a4f4e14d88d4490916a79ad12f1ce57891e0
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2020-03-05 16:08:14 +01:00
Joerg Bornemann
e1e0862990 Fix deprecation warning in QGenericUnixServices
Do not use the deprecated method QProcess::start(QString) anymore.

Change-Id: I09eae2c8a1dbb53fd2de004e5030da9bb3c07b14
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-03-05 15:20:07 +01:00
Joerg Bornemann
66e905b1c3 Fix deprecation warning in QProcess::execute(QString)
Implement this method in terms of splitCommand and
QProcess::execute(QString, QStringList).

Change-Id: I1fe78fb53d8b6b34a8796f9fbda380a98a840c99
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-03-05 15:20:02 +01:00
Tor Arne Vestbø
a539e53eb0 Add 'pass' test to testlib selftests
Change-Id: I858cd5e6ef7ad1064166efb7325c62065d46eb27
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@qt.io>
2020-03-05 15:18:04 +01:00
Oliver Wolff
7c7bd44669 examples: Fix build for configurations that do not have printsupport
printsupport features are only available if the module is available for
the configuration. Every printer feature check has to be coupled with a
check for the module itself.

Change-Id: Id2ca84e71d5d74463d0ff35e8b18b252a779a883
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-03-05 15:11:36 +01:00
Mårten Nordheim
a2305f9430 CMake: fix typo
gerate -> generate

Change-Id: I948a3bdb4f56584a9ab02f27760fec5989d528ce
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 13:25:06 +01:00
Marc Mutz
bd84e8d63e QHash/QMap: don't return const from value(), key()
... it breaks move semantics.

We can change these, since they're templates and a short survey shows
that no-one in Qt was crazy enough to inherit an exported class from
QHash or QMap.

Otherwise this would be BiC on MSVC, which encodes the return type.

There's also no safety benefit here, as none of the overloads returns
by reference, so users cannot expect map.value(key).mutate() to have
an effect on the element in the container.

In this, key() and value() differ from op[], which also returns const,
but whose overload returns a reference. op[] is therefore not proposed
here.

[ChangeLog][QtCore][QHash/QMultiHash/QMap/QMultiMap] The value() and
key() member functions now return T (was: const T), enabling move
semantics on their return values.

Change-Id: I0e5f53f9834caad458e3bde27f1daacbb4bac71b
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-03-05 13:24:32 +01:00
Sona Kurazyan
dfaca09e85 Add support for attaching continuations to QFuture
Added QFuture::then() methods to allow chaining multiple asynchronous
computations.

Continuations can use the following execution policies:

* QtFuture::Launch::Sync - the continuation will be launched in the same
thread in which the parent has been executing.

* QtFuture::Launch::Async - the continuation will be launched in a new
thread.

* QtFuture::Launch::Inherit - the continuation will inherit the launch
policy of the parent, or its thread pool (if it was using a custom one).

* Additionally then() also accepts a custom QThreadPool* instance.

Note, that if the parent future gets canceled, its continuation(s) will
be also canceled.

If the parent throws an exception, it will be propagated to the
continuation's future, unless it is caught inside the continuation
(if it has a QFuture arg).

Some example usages:

 QFuture<int> future = ...;
 future.then([](int res1){ ... }).then([](int res2){ ... })...

 QFuture<int> future = ...;
 future.then([](QFuture<int> fut1){ /* do something with fut1 */ })...

In the examples above all continuations will run in the same thread as
future.

 QFuture<int> future = ...;
 future.then(QtFuture::Launch::Async, [](int res1){ ... })
       .then([](int res2){ ... })..

In this example the continuations will run in a new thread (but on the
same one).

 QThreadPool pool;
 QFuture<int> future = ...;
 future.then(&pool, [](int res1){ ... })
       .then([](int res2){ ... })..

In this example the continuations will run in the given thread pool.

[ChangeLog][QtCore] Added support for attaching continuations to QFuture.

Task-number: QTBUG-81587
Change-Id: I5b2e176694f7ae8ce00404aca725e9a170818955
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-03-05 13:24:32 +01:00
Marc Mutz
16f927a4f1 QLoggingRegistry: use QStringView/QLatin1String more
- QLoggingRule::parse() and the ctor take pattern as QStringView

- parseNextLine takes lines as QStringView and produces the pattern as
  QStringView for QLoggingRule

- (setContent has to wait for QStringTokenizer)

- QLoggingRule::pass()'s first argument is always QLatin1String, so
  take it as one

Use chopped() more, add a std::move().

Change-Id: Ic95ea77464a9922fef452846bc6d5053bd5de56e
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-03-05 13:03:13 +02:00
Marc Mutz
c58249c327 tst_qstringapisymmetry: start testing char16_t, too
No surprises, as char16_t is transparently handled by QChar overloads.

Ok, one surprise: we seem to have QChar <> QByteArray relational
operators, but they don't work for char16_t. Probably members of
QChar, so LHS implicit conversions are disabled. Didn't investigate,
because it needs to be fixed at some point anyway, but that point is
not now.

Change-Id: I74e1c9bdd168e6480e18d7d86c1f13412e718a32
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-03-05 10:51:39 +03:00
Marc Mutz
50f865e33f tst_qstringapisymmetry: fix indexOf/contains/lastIndexOf tests
... to not fold QChar tests into QString ones.

This is needed for adding char16_t tests.

Change-Id: I2507d7d68a39ff96cf033eadde10e383dc976dda
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-03-05 07:50:33 +00:00
Marc Mutz
b2f79cceb1 QLatin1String/QStringView: add (missing) member compare()
[ChangeLog][QtCore][QLatin1String] Added compare().

[ChangeLog][QtCore][QStringView] Added compare() overloads
taking QLatin1String, QChar.

Change-Id: Ie2aa400299cb63495e65ce29b2a32133066de826
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-03-05 07:50:02 +00:00
Marc Mutz
728cc964f3 QString/QByteArray: make all symmetry-checked member-compare() combinations noexcept
In QByteArray, they were just not marked as such.

In QString and QStringRef, the implicit conversion from QChar to
QString would destroy it. Add a QChar overload, delegating to
QStringView.

Added docs for the new overloads, copying from the nearest neighbor so
as to not look out of place. All string classes use different wording
for these functions. A cleanup of this state of affairs is out of the
scope of this patch.

Change-Id: I0b7b1d037aa229bcaf29b793841a18caf977d66b
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-03-05 07:49:40 +00:00
Joerg Bornemann
1057d568bb configurejson2cmake: Fix non-inline compile tests
If there's no test dir set, use "config.tests" as default value, and
perform the check for the existence of CMakeLists.txt in
configurejson2cmake, not the configure.cmake file.

Change-Id: I8d3be8f2b68767c7592665c374022353c2dc6c57
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 07:48:20 +01:00
Joerg Bornemann
343865201a configurejson2cmake: Fix compile tests without a "test" entry
Set the default value of the "test" entry to the test's name like the
qmake-based configure does.

Change-Id: Ic1027c54c6312c47dca241dd7e3dc65b3e35d36f
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 07:48:16 +01:00
Joerg Bornemann
b99321b78b CMake: Port the 'force_debug_info' feature
This feature is read-only and is ON if CMAKE_BUILD_TYPE is RelWithDebInfo
or if that value is in CMAKE_CONFIGURATION_TYPES.
It mainly exists for the qmake support.

Change-Id: I25cb57e832dcfcab100834a104b1a3d34f01086b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 07:48:11 +01:00
Joerg Bornemann
46a2366d12 CMake: Port the 'debug_and_release' feature
This feature is read-only. It's controlled by the multi-config feature
of CMake. It mainly exists for the qmake support.

Change-Id: I322459598fe92568eda4d42319ded444537e95d4
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 07:48:06 +01:00
Joerg Bornemann
20410cdc11 CMake: Port the 'shared' feature
This feature is read-only and supposed to be set by BUILD_SHARED_LIBS.
It mainly exists for the qmake support.

Change-Id: I722b0de53211d0aab1924e45a77120c890f31f50
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 07:48:01 +01:00
Joerg Bornemann
becbd07f55 CMake: Port the 'debug' feature
This feature is read-only and supposed to be set by variables like
CMAKE_BUILD_TYPE. It mainly exists for the qmake support.

Change-Id: Ic7e32cbda0f3c2d92dd446b07a3bf1a8d85ec3b9
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-05 07:47:56 +01:00
Lars Knoll
a0ffdf765e Merge "Merge remote-tracking branch 'origin/5.15' into dev" 2020-03-04 19:10:37 +00:00
Timur Pocheptsov
9e46dd7719 Document TlsV1SslV3 as deprecated
Change-Id: Id127b6d985d0085982e47b4f80886e3831ce07c7
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-03-04 19:24:58 +01:00
BogDan Vatra
519ea72108 Android: Bump gradle (plugin) versions
Move min & target sdk from AndroidManifest.xml to build.gradle

Fixes: QTBUG-70817
Change-Id: Id9bb9825a3232587e0255b2d3d6f0273c5f9b66a
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-03-04 18:02:35 +00:00
Mårten Nordheim
8131116896 QSslCertificate: Turn enum into enum class and expand abbreviation
From API review

Change-Id: Id174ff1a0a123585e41723ef1c1876b2f3bd39c5
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-03-04 18:36:04 +01:00
Mårten Nordheim
d57adfe5f3 QtConcurrent: filter- and map-reduce with initial value
It takes any type which is implictly covertible to the result type
and then converts it in the outer-layers. Then it passes it into the
deeper layers and initiales the result value.

One drive-by fix with a missing letter in the documentation.

[ChangeLog][QtConcurrent] QtConcurrent::mappedReduce and
QtConcurrent::filteredReduced, as well as their blocking variants,
now optionally take an initial value.

Fixes: QTBUG-73240
Change-Id: I7a80d96693cfa3374847c75c75b3167664609c1a
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-03-04 17:40:45 +01:00
Alexandru Croitor
d50b22e75d CMake: Remove incorrect hardcoded harfbuzz condition
The non-system harfbuzz feature doesn't actually have a condition
in the json file.

Change-Id: I4b74915f28da97d6ef8f89690e91306d243913ee
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-03-04 16:16:27 +00:00
Alexandru Croitor
aa5e43d491 CMake: Adapt to latest upstream Ninja Multi-Config changes
Most of the NMC-specific variables were renamed to be more general.

Change-Id: I8ee2874fecb9e57480ce51db9183c6cf3dd100af
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-03-04 17:16:24 +01:00
Fabian Kosmale
aa6c560a74 Revert "Remove flagBits from QMatrix4x4"
This reverts commit 5ebb03c476.

Reason for revert: Removing flagBits breaks the batchrenderer in declarative, which accesses them via QMatrix4x4_Accessor. If flagBits are still going to be removed, we need to first find a solution for the renderer.

Change-Id: Ib0a3fc7a327926f2245058c0e2ed30e8789aa75d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2020-03-04 15:54:38 +00:00
Friedemann Kleint
09f3272814 QTypeRevision: Fix warnings about max macro from windows.h
Similar to def272750c, put parentheses
around std::numeric_limits<Integer>::max, fixing:

qversionnumber.h(339): warning C4003: not enough arguments for function-like macro invocation 'max'

Change-Id: Id574f3a08973cf1408e015f155c8e658b04bd170
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
2020-03-04 16:31:13 +01:00
Friedemann Kleint
649d7abcd2 Update uic's class lib map to reflect QtOpenGLWidgets
Task-number: QTBUG-74409
Change-Id: I5de957156c3120422f5c8f2e702e198f9f6cc43d
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2020-03-04 15:31:13 +00:00
Lars Schmertmann
5ee1dac8d6 Finally remove splash.xml to fix a lint warning
Unused resources
----------------
src/android/java/res/layout/splash.xml:2:
The resource R.layout.splash appears to be unused

Fixes: QTBUG-72976
Change-Id: I8f23438503d21f3279e0577a9caac745810fffc3
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2020-03-04 16:31:13 +01:00
Joerg Bornemann
1a30a82830 CMake: Fix stack-protector-strong test and feature
And in order to do this we must teach qt_config_compile_test a
COMPILE_OPTIONS argument.

Change-Id: I66fa45142b544e3a2fc599af1c1a4c69b442b318
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-04 16:31:13 +01:00
Lars Knoll
2a4b957789 Merge remote-tracking branch 'origin/5.15' into dev
Change-Id: I99ee6f8b4bdc372437ee60d1feab931487fe55c4
2020-03-04 14:39:18 +00:00
Andre de la Rocha
566def740e Windows QPA: Add support to UiaRaiseNotificationEvent()
This change adds support to UiaRaiseNotificationEvent() in the
UI Automation-based accessibility code, and uses it to notify changes
in string-typed values, allowing Narrator, NVDA and other screen readers
to notice changes in the application state that were previously missed.

Fixes: QTBUG-75003
Change-Id: I646ca3a851ab7b69817d900b002eb91a3bf607a6
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-03-04 13:09:48 +01:00
Volker Hilsheimer
d678827f11 Un-blacklist QElapsedTimer::elapsed test
The test was fixed and metrics show no flaky failures anymore.

Task-number: QTBUG-58713
Change-Id: I50c0844db099f45bb5b7ca51a510bf0318554c44
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-03-04 10:04:54 +01:00
Volker Hilsheimer
295a16b0d3 Don't use deprecated QPixmapCache::find overload
Silence compile time warning and show correct usage in example
snippet.

Change-Id: I1936f006e4b5f3ca71bbc0100ed039beeb459271
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
2020-03-04 09:15:27 +01:00
Eskil Abrahamsen Blomfeldt
fb2f42b604 Update to Harfbuzz 2.6.4
Quite a big change since it has been several years since
the last update. This drops the Harfbuzz source on top
of the existing code in Qt, and does the following
additional changes:

1. Deletes old source files that have been removed upstream
(everything named foo-private.hh is now renamed to just
foo.hh for instance).

2. Added a header guard to config.h because it may be
double-included.

3. Implement a memory barrier needed by hb-atomic.hh.

4. Changed the signature of hb_atomic_int_impl_add()
to take a pointer to match new upstream.

5. Updated .pro file to include new files and removed
old.

6. Updated qt_attribution.json

7. No longer disable deprecated APIs since
hb_ot_tags_from_script() is now deprecated and is used
from Qt code.

8. Updated and applied the patch in patches/ for CoreText.

9. Updated tst_qtextscriptengine::thaiWithZWJ() according to
changes in Harfbuzz and disabled it for system-harfbuzz,
since this may be an older version of harfbuzz depending on
the system.

Fixes: QTBUG-79606
Change-Id: I3f057a43ff44ee416628b75ef12fb1a221f31910
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-03-04 08:28:04 +01:00
Eskil Abrahamsen Blomfeldt
4724dfff62 Remove references to QTextDocumentPrivate from public API
The private object of QTextDocument has been exposed through
public APIs marked internal, which we should avoid as much as
possible, since it clutters the headers.

For accessing private data without adding friends, we have
a nice pattern of adding a static get() function to the
private class itself.

Fixes: QTBUG-55059
Change-Id: I03e949a677e03487e95f24e3608a06aa0a3511ab
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2020-03-04 08:28:04 +01:00
Eskil Abrahamsen Blomfeldt
5f1afeacf6 Android: Increase minimum API level to Android-23 / Android 6
There are certain APIs we need which cannot be used without this,
and in general it simplifies some code.

[ChangeLog][Android] Minimum Android version is now Android 6.0,
API level 23.

Change-Id: I72ca3b429bf48969e16e2bc6b99d9c4af993ea77
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
Reviewed-by: BogDan Vatra <bogdan@kdab.com>
2020-03-04 08:28:04 +01:00
Tor Arne Vestbø
048f0a00fa macOS: Don't create QMacCGContext when printing
We adopt the context of the print session, so the code is not needed,
and would just produce a warning since QMacCGContext didn't know what
to do about the printer paint device.

Change-Id: I9ac079f5cb5d98022045632592d0e375710eecc3
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-03-04 01:30:11 +01:00
Tor Arne Vestbø
5d9d3ff326 macOS: Reduce save dialog extension filters to their last component
NSSavePanel does not deal well with multi-part extensions, to the point
where it will fail to open if that's the only acceptable extension.

We follow Chromium's lead here and reduce the extension to its last
component, which enables selecting and saving files such as 'foo.tar.gz'.

To improve the user experience we always show file extensions when we
detect a multi-part extension. This makes it clearer what the final
extension will be, and avoids confusing macOS about the intention of
the user when choosing a file that without the final extension also
matches another known extension.

Fixes: QTBUG-38303
Fixes: QTBUG-44227
Change-Id: Id0cee84f758c2cd59fcf1b339caa30f7da07dd1e
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-03-04 00:29:54 +00:00
Thiago Macieira
ae6f73e856 QLibrary: introduce a mutex to protect non-atomic internals
And make pHnd atomic.

The majority of the variables is updated in QLibraryPrivate::load_sys
and updatePluginState(), which get the mutex protection.
QLibraryPrivate::unload_sys() doesn't need a mutex protection because we
have the refcounting.

[ChangeLog][QtCore][QLibrary & QPluginLoader] Fixed a number of race
conditions caused by having two QLibrary objects pointing to the same
library being operated in different threads.

Fixes: QTBUG-39642
Change-Id: I46bf1f65e8db46afbde5fffd15e1a5b3f5e74ea4
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-03-03 14:36:32 -08:00
Thiago Macieira
ef92ac5636 QLibrary: stop setting errorString after resolve()
resolve() is technically thread-safe if the library has been loadaed. We
don't promise that, but it's there. More importantly, because
QLibraryPrivate is shared among QPluginLoader and QLibrary that point to
the same file, we can't thread-safely set the error string.

[ChangeLog][Important Behavior Changes] QLibrary::resolve() will no
longer set or clear the error string based on the success of finding the
symbol. The error string will reflect the result of loading the library.

Change-Id: I46bf1f65e8db46afbde5fffd15e1a4f4c2713c17
Reviewed-by: David Faure <david.faure@kdab.com>
2020-03-03 14:36:30 -08:00
Thiago Macieira
f6c1cebe42 QPluginLoader: rework the loading and the caching of instance
There was a race condition in accessing the cached instance factory
member, so rework loadPlugin() to return the cached or newly discovered
instance, with proper, atomic caching. Because I had to change that, I
took the opportunity to fix the QFactoryLoader code that calls
loadPlugin().

Note that QLibraryPrivate::loadPlugin() returns non-nullptr now if the
instance is known, which means the last return in QPluginLoader::load()
will convert to true, not false, if the instance got cached between the
earlier check and the call to loadPlugin(). That's probably what was
intended.

Task-number: QTBUG-39642
Change-Id: I46bf1f65e8db46afbde5fffd15e1a42d2b6cbf2c
Reviewed-by: David Faure <david.faure@kdab.com>
2020-03-03 14:36:28 -08:00
Shawn Rutledge
d9ca61bf0f Add the include for QPointer to avoid MSVC compilation error
It has been reported that 7447e2b337
needs amending to build on MSVC 2019, although it was OK in CI.

Change-Id: Id22c2a3608529abebd66c0e8f401bc6f26f45e18
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-03-03 22:30:11 +01:00
Christian Ehrlicher
8c883c8da3 QDom: use correct precision when converting float/double values
d7cb21ac08 change the way a double is
converted which resulted in less precision.
Fix it by explictily setting the precision in QString::setNum()

Task-number: QTBUG-80068
Change-Id: I1fd9d00837155ceb707e84bfeb9deff03b5ab57e
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: Konstantin Shegunov <kshegunov@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-03-03 22:08:18 +01:00