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QFactoryLoader: merge the global statics into a single struct

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Drive-by update one more for to ranged-for and make sure we don't create
the global statics on destruction.

Change-Id: I5e52dc5b093c43a3b678fffd16b5ff674dfd17ae
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
This commit is contained in:
Thiago Macieira 2021-11-09 13:54:18 -08:00 committed by Edward Welbourne
parent 2fbcc18309
commit 6c6b342061
1 changed files with 21 additions and 12 deletions
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33
src/corelib/plugin/qfactoryloader.cpp
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@ -152,9 +152,17 @@ public:
static Q_LOGGING_CATEGORY_WITH_ENV_OVERRIDE(lcFactoryLoader, "QT_DEBUG_PLUGINS",
"qt.core.plugin.factoryloader")
Q_GLOBAL_STATIC(QList<QFactoryLoader *>, qt_factory_loaders)
namespace {
struct QFactoryLoaderGlobals
{
// needs to be recursive because loading one plugin could cause another
// factory to be initialized
QRecursiveMutex mutex;
QList<QFactoryLoader *> loaders;
};
}
Q_GLOBAL_STATIC(QRecursiveMutex, qt_factoryloader_mutex)
Q_GLOBAL_STATIC(QFactoryLoaderGlobals, qt_factoryloader_global)
QFactoryLoaderPrivate::~QFactoryLoaderPrivate()
{
@ -284,8 +292,10 @@ void QFactoryLoader::update()
QFactoryLoader::~QFactoryLoader()
{
QMutexLocker locker(qt_factoryloader_mutex());
qt_factory_loaders()->removeOne(this);
if (!qt_factoryloader_global.isDestroyed()) {
QMutexLocker locker(&qt_factoryloader_global->mutex);
qt_factoryloader_global->loaders.removeOne(this);
}
}
#if defined(Q_OS_UNIX) && !defined (Q_OS_MAC)
@ -298,11 +308,10 @@ QLibraryPrivate *QFactoryLoader::library(const QString &key) const
void QFactoryLoader::refreshAll()
{
QMutexLocker locker(qt_factoryloader_mutex());
QList<QFactoryLoader *> *loaders = qt_factory_loaders();
for (QList<QFactoryLoader *>::const_iterator it = loaders->constBegin();
it != loaders->constEnd(); ++it) {
(*it)->update();
if (qt_factoryloader_global.exists()) {
QMutexLocker locker(&qt_factoryloader_global->mutex);
for (QFactoryLoader *loader : std::as_const(qt_factoryloader_global->loaders))
loader->update();
}
}
@ -327,9 +336,9 @@ QFactoryLoader::QFactoryLoader(const char *iid,
d->suffix.remove(0, 1);
# endif
QMutexLocker locker(qt_factoryloader_mutex());
QMutexLocker locker(&qt_factoryloader_global->mutex);
update();
qt_factory_loaders()->append(this);
qt_factoryloader_global->loaders.append(this);
#else
Q_UNUSED(suffix);
Q_UNUSED(cs);
@ -343,7 +352,7 @@ void QFactoryLoader::setExtraSearchPath(const QString &path)
if (d->extraSearchPath == path)
return; // nothing to do
QMutexLocker locker(qt_factoryloader_mutex());
QMutexLocker locker(&qt_factoryloader_global->mutex);
QString oldPath = qExchange(d->extraSearchPath, path);
if (oldPath.isEmpty()) {
// easy case, just update this directory