NetBSD Problem Report #57001

From  Fri Sep  9 06:04:45 2022
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Date: Fri,  9 Sep 2022 06:04:44 +0000 (UTC)
Subject: sigevent(3) man page is outdated
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>Number:         57001
>Category:       toolchain
>Synopsis:       sigevent(3) man page is outdated
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Sep 09 06:05:00 +0000 2022
>Originator:     Zach Hopkins
>Release:        9.3
NetBSD netbsdvm 9.3 NetBSD 9.3 (GENERIC) #0: Thu Aug 4 15:30:37 UTC 2022 amd64
sigevent(3) man page says: "not yet fully functional in NetBSD: neither realtime signals nor SIGEV_THREAD are currently supported. Realtime functions that can generate realtime signals include... Expiration of per-process timers; see timer_create(2)."

I'm working on something that is currently using timer_create(2) to generate SIGUSR1 and SIGUSR2 on timer expiration and was a little sad to see that I would have to find a different solution to work on netbsd...

Except I tested it and it works! Noting Problem Report #42434 after a search, using SIGEV_SIGNAL, has worked (at least in some capacity / basic usage) since at least 2010. Not sure on the state of SIGEV_THREAD.
Update sigevent(3) to document what is currently functional.

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