From: Eric Wong <normalperson@...>
Date: 2018-06-20T23:48:13+00:00
Subject: [ruby-core:87540] Re: [ruby-cvs:70799] normal:r63708 (trunk): test/ruby/test_io.rb: fix timing sensitive test

normal@ruby-lang.org wrote:
>   https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63708
> 
>   Log:
>     test/ruby/test_io.rb: fix timing sensitive test
>     
>     For systems with sleepy timer thread disabled, the signal
>     handler does not fire soon enough and we need to ensure the
>     signal is received before we check its value.  So use a
>     self-pipe here.

I wanted to try using a Queue for this, but deadlock detection
kicked in :<   /me is not a fan of nanny features...

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