From: Eric Wong <normalperson@...>
Date: 2018-08-07T19:20:56+00:00
Subject: [ruby-core:88329] Re: [Ruby trunk Misc#14937] [PATCH] thread_pthread: lazy-spawn timer-thread only on contention

> > or I will have to revert and reintroduce timer-thread :<
> 
> reverted for now :< r64203

Btw, using POSIX timers is a solution for this; because
timer_settime(2) is async-signal safe and I can call it
from signal handlers.

(pthreads platforms w/o POSIX timers can use emulation via
 extra thread)

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