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Use atomic<bool> and compare_exchange_strong

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This commit is contained in:
Anthony J. Thibault 2017-10-13 16:03:56 -07:00
parent a2a6cd0c7a
commit 67d43b4fac
2 changed files with 8 additions and 9 deletions
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13
interface/src/Application.cpp
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@ -275,7 +275,7 @@ private:
switch ((int)event->type()) {
case ApplicationEvent::Render:
render();
qApp->_pendingRenderEventCount--;
qApp->_pendingRenderEvent.store(false);
return true;
default:
@ -2723,13 +2723,12 @@ bool Application::importFromZIP(const QString& filePath) {
// thread-safe
void Application::onPresent(quint32 frameCount) {
if (_pendingIdleEventCount.load() == 0) {
_pendingIdleEventCount++;
bool expected = false;
if (_pendingIdleEvent.compare_exchange_strong(expected, true)) {
postEvent(this, new QEvent((QEvent::Type)ApplicationEvent::Idle), Qt::HighEventPriority);
}
if (_renderEventHandler && !isAboutToQuit() && _pendingRenderEventCount.load() == 0) {
_pendingRenderEventCount++;
expected = false;
if (_renderEventHandler && !isAboutToQuit() && _pendingRenderEvent.compare_exchange_strong(expected, true)) {
postEvent(_renderEventHandler, new QEvent((QEvent::Type)ApplicationEvent::Render));
}
}
@ -2845,7 +2844,7 @@ bool Application::event(QEvent* event) {
}
#endif // DEBUG_EVENT_QUEUE
_pendingIdleEventCount--;
_pendingIdleEvent.store(false);
return true;

4
interface/src/Application.h
View file

@ -718,7 +718,7 @@ private:
friend class RenderEventHandler;
std::atomic<int> _pendingIdleEventCount { 0 };
std::atomic<int> _pendingRenderEventCount { 0 };
std::atomic<bool> _pendingIdleEvent { false };
std::atomic<bool> _pendingRenderEvent { false };
};
#endif // hifi_Application_h