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* Make QObjectPrivate::threadData a proper atomicGiuseppe D'Angelo2019-11-131-17/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Port from implicit to explicit atomic pointer operationsMarc Mutz2019-06-291-1/+1
| | | | | | | | | | | | 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>
* Port from QAtomic::load() to loadRelaxed()Giuseppe D'Angelo2019-06-201-5/+5
| | | | | | | | | | | | | | | 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>
* WebAssembly for QtBaseMorten Johan Sørvig2018-08-301-0/+24
| | | | | | | | | | | | This is the squashed diff from wip/webassembly to dev. Done-with: Peng Wu <peng.wu@intopalo.com> Done-with: Sami Enne <sami.enne@intopalo.com> Done-with: Morten Johan Sørvig <morten.sorvig@qt.io> Started-by: Andrew Knight <andrew.knight@intopalo.com> Change-Id: I6562433c0a38d6ec49ab675e0f104f2665f3392d Reviewed-by: Lorn Potter <lorn.potter@gmail.com> Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
* QThread: Centralize the creation of the event dispatcherThiago Macieira2018-07-141-4/+2
| | | | | | | | | | | In some places we call startingUp(), in others we don't. It's probably ok for those that have just created an object of a given class, which knows whether the virtual call is necessary or not. But for the generic case, we do call it. Change-Id: If48c5c2e920c433298f1fffd153ee1cc75703204 Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Make QThreadPrivate::createEventDispatcher do exactly what it saysTor Arne Vestbø2018-02-141-1/+3
| | | | | | | | | | | Leaving the logic of starting up the event dispatcher to the call site, unified both the case of a custom event dispatcher and the default event dispatcher. The data argument is left in due to the static nature of the function. Change-Id: Ia2020e39ccc67cd5a583d4e614dd978b2ec44dba Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Use explicit QThreadData::hasEventDispatcher() where possibleTor Arne Vestbø2018-02-141-5/+5
| | | | | Change-Id: Ibce1a82dabb4e1381486211dbfb14eee9572e0ac Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* QtCore: include mocsThiago Macieira2017-05-051-0/+2
| | | | | | | | | | | | | | | | | | | Compilation and link times in CPU seconds with GCC 7, using precompiled headers (not including moc, rcc, uic, etc. steps or headersclean): Before After Debug -O0 198,1 180,3 Debug -Og 240,7 229,2 Release -O3 267,1 249,2 Release LTO 239,4 229,8 QtCore required a little manual adjusting because some files are bootstrapped into moc itself and into qmake. Change-Id: I84e363d735b443cb9beefffd14b8b57c10e7da36 Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Marc Mutz <marc.mutz@kdab.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
* Merge remote-tracking branch 'origin/5.6' into 5.7Edward Welbourne2016-07-041-2/+4
|\ | | | | | | Change-Id: Ibd81cd1df4a0650d93fcb556a57be90be2e1f569
| * QEventLoop: better describe the exception safety of QtGiuseppe D'Angelo2016-07-021-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1) In general it's unsafe to let exceptions propagate through Qt code, so document that. 2) Add a note that overriding notify() makes sense only in Qt 5, in Qt 6 it's going away. 3) The advice applies also to applications not using QApplication, but just QCoreApplication. Change-Id: I4f6e74c53da757faf2eeaa9de226ceba55c52536 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Martin Smith <martin.smith@theqtcompany.com>
* | Updated license headersJani Heikkinen2016-01-151-14/+20
|/ | | | | | | | | | | From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new LGPL header instead of LGPL21 one (in those files which will be under LGPL v3) Change-Id: I046ec3e47b1876cd7b4b0353a576b352e3a946d9 Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
* Add a way for auxiliary threads to handle events without CoreAppThiago Macieira2015-07-181-1/+1
| | | | | | | | | | | | | | Long-lived threads started by Qt itself can now receive events even if QCoreApplication hasn't been created. This is required in all threads we start that will handle events, unless we're sure that the thread will exit before the global application object begins destruction. Otherwise, those threads will have race conditions dealing with the event delivery system trying to call the QCoreApplication::notify() virtual while the object is being destroyed. Change-Id: I27eaacb532114dd188c4ffff13d4ad2a4bb443e6 Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
* Update copyright headersJani Heikkinen2015-02-111-7/+7
| | | | | | | | | | | | | | | | | | Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Outdated header.LGPL removed (use header.LGPL21 instead) Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing combination. New header.LGPL-COMM taken in the use file which were using old header.LGPL3 (src/plugins/platforms/android/extract.cpp) Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license combination Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
* Update license headers and add new license filesMatti Paaso2014-09-241-19/+11
| | | | | | | | | - Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 - Removed LICENSE.GPL Change-Id: Iec3406e3eb3f133be549092015cefe33d259a3f2 Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
* Doc: Adding mark-up to boolean default values.Jerome Pasion2013-10-081-3/+3
| | | | | | | | | | | | | | | | | Default values should have mark-up to denote that they are code. This commit changes: -"property is true" to "property is \c true". -"Returns true" to "Returns \c true". -"property is false" to "property is \c false". -"returns true" to "returns \c true". -"returns false" to "returns \c false". src/3rdparty and non-documentation instances were ignored. Task-number: QTBUG-33360 Change-Id: Ie87eaa57af947caa1230602b61c5c46292a4cf4e Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com> Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
* QEventLoop: fix race on 'exit' and 'returnCode' private membersDavid Faure2013-03-291-6/+6
| | | | | Change-Id: I380046f386448783e3e4e93bde8cbe15b9b0279e Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* QThread: fix race when setting the eventDispatcherDavid Faure2013-03-221-8/+8
| | | | | | | Use QAtomicPointer to make this thread-safe. Change-Id: If71f204699fcefabdb59bd26342d777d1cc9e2a7 Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
* Update copyright year in Digia's license headersSergio Ahumada2013-01-181-1/+1
| | | | | Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Change copyrights from Nokia to DigiaIikka Eklund2012-09-221-24/+24
| | | | | | | | 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>
* Docs: Add "\since" info for QEventLoopLocker.Christian Kandeler2012-09-131-0/+1
| | | | | | Change-Id: Ie749b6f2539be5bd08d7a6a00eb4e8655cec1227 Reviewed-by: Qt Doc Bot <qt_docbot@qt-project.org> Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
* Doc: Add \inmodule QtCore to all QtCore class doc bodiesThiago Macieira2012-08-231-0/+2
| | | | | Change-Id: I19100755c97cc155c76a859e19940e9f9222d34e Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>
* fix QEventLoop qdoc errorsJeremy Katz2012-07-301-3/+6
| | | | | Change-Id: I17bb720d539a7ccf5d9a3b20853897ff052fc8a6 Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>
* Doc: Prepare for building modular QtCore docs.Casper van Donderen2012-04-191-1/+1
| | | | | | | | | | | | This change fixes most qdoc errors in QtCore. There are about 900 left. The main thing this change does is moving documentation from qtcore from /doc/src to /src/corelib/doc. Other issues resolved are mis-use of qdoc commands. Change-Id: I002d01edfb13575e8bf27ce91596a577a92562d1 Reviewed-by: Lars Knoll <lars.knoll@nokia.com> Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com> Reviewed-by: Jerome Pasion <jerome.pasion@nokia.com>
* Fix up the QEventLoopLocker documentation.Stephen Kelly2012-03-191-3/+10
| | | | | Change-Id: If5bf8c2703f094023a614b3efcbd8489560694d9 Reviewed-by: Richard J. Moore <rich@kde.org>
* Remove the usage of deprecated qdoc macros.Casper van Donderen2012-03-021-3/+3
| | | | | | | | | | | QDoc now has support for Doxygen style commands for italics, bold and list items. This change applies that change in QDoc to the actual documentation. Task-number: QTBUG-24578 Change-Id: I519bf9c29b14092e3ab6067612f42bf749eeedf5 Reviewed-by: Shane Kearns <shane.kearns@accenture.com> Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* Optimize space for the QEventLoopQuitLocker.Stephen Kelly2012-02-271-9/+23
| | | | | | | Use a union and a type enum instead of three pointers. Change-Id: I02b11733a4f2e95099064fa9325497d4e04ac615 Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* Add the quitlock feature to QThread.Stephen Kelly2012-02-231-2/+17
| | | | | | Change-Id: Ib44ee9739499ba4c5f0fecbef3976251ea22836d Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Add the event loop quitlock feature to QtCore.Stephen Kelly2012-01-311-11/+94
| | | | | | | | | | | | | | | | A feature of a ref-counted quit (managed by a quit-lock class) is added to both QEventLoop and QCoreApplication. This allows, for example, an event loop to quit() when there is no more work for it to do. quitOnLastWindowClosed is implemented in terms of the refcount in QCoreApplication so that jobs can be completed before the application quits. Change-Id: I14c8f4e7ee12bbf81a6e5849290d4c8ff37fa110 Reviewed-by: David Faure <faure@kde.org> Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* Remove "All rights reserved" line from license headers.Jason McDonald2012-01-301-1/+1
| | | | | | | | | | As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Remove QEventLoop::DeferredDeletionBradley T. Hughes2012-01-231-9/+0
| | | | | | | | | | | | This flag has been deprecated since Qt 4.4, so remove it. tst_QApplication had 2 nearly identical tests, one for testing the QEventLoop::DeferredDeletion flag, and one to test sendPostedEvents() with QEvent::DeferredDelete. The latter is the preferred way, so keep that test, but remove the test for the obsoleted flag. Change-Id: Icdb7483c32b3c920bda31d2bbb4f7414ece6d826 Reviewed-by: Lars Knoll <lars.knoll@nokia.com> Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
* Update contact information in license headers.Jason McDonald2012-01-231-1/+1
| | | | | | | Replace Nokia contact email address with Qt Project website. Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Update copyright year in license headers.Jason McDonald2012-01-051-1/+1
| | | | | Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Replace try/catch blocks in favour of destructors in the event loop.Thiago Macieira2011-07-111-34/+32
| | | | | | | | | | | | | | | This has two direct benefits: 1) compiles regardless of -fno-exceptions: no need for #ifndef QT_NO_EXCEPTIONS or QT_TRY/QT_CATCH 2) no QT_RETHROW either, which means the backtrace of an application crashing due to an uncaught exception will include the actual throw point. Change-Id: I18e5500e121bfa81431ef16699df96d962794f0e Reviewed-on: http://codereview.qt.nokia.com/663 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Olivier Goffart <olivier.goffart@nokia.com>
* Update licenseheader text in source files for qtbase Qt moduleJyri Tahtela2011-05-241-17/+17
| | | | | | | Updated version of LGPL and FDL licenseheaders. Apply release phase licenseheaders for all source files. Reviewed-by: Trust Me
* Initial import from the monolithic Qt.Qt by Nokia2011-04-271-0/+329
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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