3a449bbb69c9a3c3a5bc6a052f2de98ab79be7e9 amended the code to remove
acquiring a lock when waking up a condition variable. It is fine to
not have a lock associated when waking a condition variable; what I
misunderstood was the scope of the lock, which (and this underlines
the importance of commenting _what exactly_ a lock protects, for
each and ever lock) protected both the buffer as well as the counter
of the buffer. This made my reasoning flawed: it is necessary to keep
the lock while notifying, otherwise the counterpart could verify the
condition isn't satisfied and wait (e.g. see numUsedBytes==0), missing
the wake from the other thread (which could arrive between the check and
the wait).
Amends the previous commit.
Change-Id: If7db2d045331f1b33b976fb6bf6aa9117c41678f
Pick-to: 5.15 6.2 6.4 6.5
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
In no particular order:
* Clean up #includes.
* Document what is protected by the mutex.
* Use explicit, nullptr.
* Use lock managers, not manual calls to lock/unlock.
* Unlock the mutex before notifying the condition variables.
* Condition variables are always meant to be used in a while loop, and
never with a plain if, because of spurious wakeups.
* Don't lock a mutex just to protect a plain integer. We have atomics
for that use case.
* Remove an unneeded signal, therefore also the need of using
Q_OBJECT and the inclusion of the moc-generated file.
Pick-to: 5.15 6.2 6.4
Fixes: QTBUG-108860
Change-Id: I2afc77955b95de8aa5fb88048cd9feb217f83b4f
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Replace the current license disclaimer in files by
a SPDX-License-Identifier.
Files that have to be modified by hand are modified.
License files are organized under LICENSES directory.
Task-number: QTBUG-67283
Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
The vast majority is actually switched to QRandomGenerator::bounded(),
which gives a mostly uniform distribution over the [0, bound)
range. There are very few floating point cases left, as many of those
that did use floating point did not need to, after all. (I did leave
some that were too ugly for me to understand)
This commit also found a couple of calls to rand() instead of qrand().
This commit does not include changes to SSL code that continues to use
qrand() (job for someone else):
src/network/ssl/qsslkey_qt.cpp
src/network/ssl/qsslsocket_mac.cpp
tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp
Change-Id: Icd0e0d4b27cb4e5eb892fffd14b5285d43f4afbf
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Examples should demonstrate best practice, and we can use the keyword
directly nowadays.
Change-Id: I1f122e5caceca17290757ffbaf3d660e7daa9ae4
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
Update files using old header.LGPL3 to header.LGPL
Update files using old FDL template to use new one
Update files using old BSD template to use new one
Change-Id: I36a78272516f9953d02956522f285b40adfc8915
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
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>
Qt Core examples were scattered into several subdirectories under
qtbase/examples. This caused an issue with the example manifest
file generated by QDoc; it expects to find all examples under a
common directory in order to produde correct paths to the example
.pro files. Qt Creator will not find the examples without a valid
manifest file.
This change moves the examples and edits the documentation files
accordingly.
Task-number: QTBUG-41963
Change-Id: I51d86782e0ba21c5c9bae5f15401ec774abe5cf8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
