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* lib/thread.rb (Queue#pop): fix a race against Thread.wakeup.

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Patch by Masaki Matsushita <glass.saga at gmail dot com>
  [Bug #5195] [ruby-dev:44400]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33121 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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kosaki 2011-08-30 00:59:52 +00:00
parent 3ffa44622d
commit 2dd9d721ed
2 changed files with 9 additions and 1 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Tue Aug 30 09:57:50 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* lib/thread.rb (Queue#pop): fix a race against Thread.wakeup.
Patch by Masaki Matsushita <glass.saga at gmail dot com>
[Bug #5195] [ruby-dev:44400]
Tue Aug 30 09:48:07 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* cont.c (fiber_entry): fix stack allocation failure on Debian

4
lib/thread.rb
View file

@ -185,7 +185,9 @@ class Queue
while true
if @que.empty?
raise ThreadError, "queue empty" if non_block
@waiting.push Thread.current
# @waiting.include? check is necessary for avoiding a race against
# Thread.wakeup [Bug 5195]
@waiting.push Thread.current unless @waiting.include?(Thread.current)
@mutex.sleep
else
return @que.shift