Re: pthread2lwp API

[Taylor R Campbell <campbell+netbsd-tech-userlevel%mumble.net@localhost>]

   Date: Fri, 22 Apr 2016 13:27:17 +0200
   From: Kamil Rytarowski <n54%gmx.com@localhost>

   In my current use-case is to access l_rtime_sec and l_rtime_usec from
    struct kinfo_lwp.

   I don't see a way to do it cleanly, something different than reading
   opaque pthread_t pointer and accessing rawly pt_lid at some offset.

What is the motivation for trying to get at l_rtime_sec and
l_rtime_usec within your process?

In general the result can't be reliable -- the thread might exit as
soon as you've gotten the lwpid.