m: Use EVFILT_USER instead of a self-pipe on kqueue where supported #73
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Verified that this works on FreeBSD and NetBSD, although tests fail on NetBSD because it does not support high precision mode (#75). |
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Certain BSD platforms (macOS and FreeBSD) support an
EVFILT_USERevent onkqueue, which lets the user send arbitrary events to the queue to be dequeued. This PR adds a system that usesEVFILT_USERwhen available to notify thePollerinstead of a self-pipe.Draft because I need to test this on FreeBSD and NetBSD.