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From: Fabian Freyer <fabian.freyer@physik.tu-berlin.de>
Subject: kqueue(2) kevents for jails
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Date: Fri, 4 Jan 2019 14:55:05 +0100
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Hi!

I'm writing a jail management library [1], and am wondering if there's 
any nice way to get notified of jail state changes (especially running 
-> dying -> dead) as well as of parameter changes.

What are the opinions on adding a kevent(2) for these things?

Fabian

[1] https://github.com/fubarnetes/libjail-rs/