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Committer:
Facebook GitHub Bot
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Author(s):
Andrii Grynenko
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Date:
2020-10-24 08:28:23 UTC
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Revision ID:
git-v1:05786142e69a1964c638bb6140b4071462a6fe5b
Make AtomicNotificationQueue::size() TSAN-clean
Summary:
taskExecuteCount_ can be incremented from a single thread, but reading it from another thread is still technically a data race. Mark it as atomic to make TSAN happy.
Also make sure we never return < 0 when called from a non-consumer thread (since we only have the synchronization guarantee on the consumer thread).
Differential Revision: D24523284
fbshipit-source-id: 6185125e132d71a83a3f29c909b7e4eab09e6e79