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LibCore: Slightly rework the Core::Promise API

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The previous iteration of this API was somewhat odd and rough in random
places, which degraded usability and made less than perfect sense.
This commit reworks the API to be a little closer to more
conventional promise APIs (a la javascript promises).

Also adds a test to ensure the class even works.
This commit is contained in:
Ali Mohammad Pur
2023-07-08 01:30:27 +03:30
committed by Linus Groh
parent 5a0ad6812c
commit 0c5c75e8a4
9 changed files with 150 additions and 38 deletions
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4
Userland/Libraries/LibCore/ThreadEventQueue.cpp
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@@ -76,7 +76,7 @@ void ThreadEventQueue::cancel_all_pending_jobs()
{
Threading::MutexLocker lock(m_private->mutex);
for (auto const& promise : m_private->pending_promises)
promise->cancel(Error::from_errno(ECANCELED));
promise->reject(Error::from_errno(ECANCELED));
m_private->pending_promises.clear();
}
@@ -87,7 +87,7 @@ size_t ThreadEventQueue::process()
{
Threading::MutexLocker locker(m_private->mutex);
events = move(m_private->queued_events);
m_private->pending_promises.remove_all_matching([](auto& job) { return job->is_resolved() || job->is_canceled(); });
m_private->pending_promises.remove_all_matching([](auto& job) { return job->is_resolved() || job->is_rejected(); });
}
size_t processed_events = 0;