From: Tanaka Akira <akr@...>
Date: 2008-07-16T20:43:16+09:00
Subject: [ruby-dev:35542] [Bug:1.9] sleep and Thread#run

1.9 では sleep で寝ているスレッドを Thread#run で起こせない
ようです。

% ./ruby -ve '
t = Thread.new {
  t1 = Time.now
  sleep 5
  t2 = Time.now
  p t2 - t1
}
sleep 1
t.run
t.join
'
ruby 1.9.0 (2008-07-16 revision 18083) [i686-linux]
5.139447392

sleep を Thread#run で起こせるっぽいことは rdoc に書いてありま
す。

 *  Suspends the current thread for _duration_ seconds (which may be any number,
 *  including a +Float+ with fractional seconds). Returns the actual number of
 *  seconds slept (rounded), which may be less than that asked for if another
 *  thread calls <code>Thread#run</code>. Zero arguments causes +sleep+ to sleep
 *  forever.

また、1.8 では起こせます。

% ruby-1.8 -ve '
t = Thread.new {
  t1 = Time.now
  sleep 5
  t2 = Time.now
  p t2 - t1
}
sleep 1
t.run
t.join
'
ruby 1.8.7 (2008-07-10 revision 17572) [i686-linux]
1.002687
-- 
[田中 哲][たなか あきら][Tanaka Akira]