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Drop checks for VxWorks 6.6 in QThread

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1. VxWorks 6.* and older are not supported in Qt6 due to C++17
requirement (among multiple other issues).
2. `_WRS_VXWORKS_MAJOR` and `_WRS_VXWORKS_MINOR` are defined in header
`version.h` on VxWorks 7, which is not included anywhere, causing
`QThread::idealThreadCount()` to always return 1. As a consequence,
instance of `QThreadPool` returned by `QThreadPool::globalInstance()`
have always only 1 thread. This causes failure of
`tst_QEventDispatcher::postEventFromThread` test case.

To fix that, remove VxWorks version checking from qthread_unix.cpp.

Pick-to: 6.7
Task-number: QTBUG-115777
Change-Id: I08ffc4acdb74d13dd822402407a71f5916603440
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 8fec93e9a7bf3f8cb80aafb1e2329d998552fbcc)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Michał Łoś 2024-05-22 10:47:06 +02:00 committed by Qt Cherry-pick Bot
parent 1603373bc0
commit 3c494d4e40
1 changed files with 2 additions and 11 deletions
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13
src/corelib/thread/qthread_unix.cpp
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@ -43,11 +43,8 @@
# include <sys/sysctl.h>
#endif
#ifdef Q_OS_VXWORKS
# if (_WRS_VXWORKS_MAJOR > 6) || ((_WRS_VXWORKS_MAJOR == 6) && (_WRS_VXWORKS_MINOR >= 6))
# include <vxCpuLib.h>
# include <cpuset.h>
# define QT_VXWORKS_HAS_CPUSET
# endif
# include <vxCpuLib.h>
# include <cpuset.h>
#endif
#ifdef Q_OS_HPUX
@ -466,8 +463,6 @@ int QThread::idealThreadCount() noexcept
// as of aug 2008 Integrity only supports one single core CPU
cores = 1;
#elif defined(Q_OS_VXWORKS)
// VxWorks
# if defined(QT_VXWORKS_HAS_CPUSET)
cpuset_t cpus = vxCpuEnabledGet();
cores = 0;
@ -478,10 +473,6 @@ int QThread::idealThreadCount() noexcept
cores++;
}
}
# else
// as of aug 2008 VxWorks < 6.6 only supports one single core CPU
cores = 1;
# endif
#elif defined(Q_OS_WASM)
cores = QThreadPrivate::idealThreadCount;
#else