Ruslan Bukin dab6d6fb5a Use kqueue(2) instead of select(2).
This helps to ensure we will not lose SIGINT sent by parent to child.

Reviewed by:	sbruno, ngie
Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
Differential Revision:	https://reviews.freebsd.org/D7892
2016-09-21 11:59:52 +00:00
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