diff options
| author | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2024-11-15 10:44:05 +0100 |
|---|---|---|
| committer | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2024-12-05 22:04:46 +0100 |
| commit | 083e44318cb481180357a0a27a3d93a85242cff3 (patch) | |
| tree | c68ce6f5dbcbec2d0a587ee9052518e605b3467f /src/corelib/thread/qthreadpool.cpp | |
| parent | 154fe8d8034f238180418ce32ac18bd6ab6df14a (diff) | |
Make multi-threaded image transforms and painter fills configurable
Some users prefer to avoid having this many threads. This also
moves disabling it for WASM from sources to config.
Fixes: QTBUG-129650
Change-Id: Ib4c7903e85ba9cb75a9e013d1032653ea0ab8b84
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Diffstat (limited to 'src/corelib/thread/qthreadpool.cpp')
| -rw-r--r-- | src/corelib/thread/qthreadpool.cpp | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/src/corelib/thread/qthreadpool.cpp b/src/corelib/thread/qthreadpool.cpp index 62e3773af95..f326ed21229 100644 --- a/src/corelib/thread/qthreadpool.cpp +++ b/src/corelib/thread/qthreadpool.cpp @@ -475,28 +475,6 @@ QThreadPool *QThreadPool::globalInstance() } /*! - Returns the QThreadPool instance for Qt Gui. - \internal -*/ -QThreadPool *QThreadPoolPrivate::qtGuiInstance() -{ - Q_CONSTINIT static QPointer<QThreadPool> guiInstance; - Q_CONSTINIT static QBasicMutex theMutex; - const static bool runtime_disable = qEnvironmentVariableIsSet("QT_NO_GUI_THREADPOOL"); - if (runtime_disable) - return nullptr; - const QMutexLocker locker(&theMutex); - if (guiInstance.isNull() && !QCoreApplication::closingDown()) { - guiInstance = new QThreadPool(); - // Limit max thread to avoid too many parallel threads. - // We are not optimized for much more than 4 or 8 threads. - if (guiInstance && guiInstance->maxThreadCount() > 4) - guiInstance->setMaxThreadCount(qBound(4, guiInstance->maxThreadCount() / 2, 8)); - } - return guiInstance; -} - -/*! Reserves a thread and uses it to run \a runnable, unless this thread will make the current thread count exceed maxThreadCount(). In that case, \a runnable is added to a run queue instead. The \a priority argument can |