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LibCore: Add Core::deferred_invoke_if(F, Condition)

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This will invoke the function F only if the provided Condition is met,
otherwise the execution of the function F will be further deferred.
This commit is contained in:
Ali Mohammad Pur
2024-05-08 20:08:18 +02:00
committed by Andreas Kling
parent 68a1a78a1a
commit a362c37c8b
4 changed files with 34 additions and 3 deletions
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8
Userland/Libraries/LibCore/ThreadEventQueue.cpp
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@@ -84,6 +84,7 @@ void ThreadEventQueue::cancel_all_pending_jobs()
size_t ThreadEventQueue::process()
{
decltype(m_private->queued_events) events;
decltype(m_private->queued_events) future_events;
{
Threading::MutexLocker locker(m_private->mutex);
events = move(m_private->queued_events);
@@ -105,7 +106,10 @@ size_t ThreadEventQueue::process()
break;
}
} else if (event.type() == Event::Type::DeferredInvoke) {
static_cast<DeferredInvocationEvent&>(event).m_invokee();
if (static_cast<DeferredInvocationContext&>(*receiver).should_invoke())
static_cast<DeferredInvocationEvent&>(event).m_invokee();
else
future_events.append(move(queued_event));
} else {
NonnullRefPtr<EventReceiver> protector(*receiver);
receiver->dispatch_event(event);
@@ -115,6 +119,8 @@ size_t ThreadEventQueue::process()
{
Threading::MutexLocker locker(m_private->mutex);
if (!future_events.is_empty())
m_private->queued_events.extend(move(future_events));
if (m_private->pending_promises.size() > 30 && !m_private->warned_promise_count) {
m_private->warned_promise_count = true;
dbgln("ThreadEventQueue::process: Job queue wasn't designed for this load ({} promises)", m_private->pending_promises.size());