[ruby-core:37393] [Ruby 1.9 - Bug #3606][Assigned] Thread.stop and puts fail to work as documented.

Issue #3606 has been updated by Yui NARUSE.

Status changed from Open to Assigned
Assignee set to Motohiro KOSAKI


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Bug #3606: Thread.stop and puts fail to work as documented.
http://redmine.ruby-lang.org/issues/3606

Author: Heesob Park
Status: Assigned
Priority: Normal
Assignee: Motohiro KOSAKI
Category: DOC
Target version: 1.9.x
ruby -v: ruby 1.9.3dev (2010-07-22 trunk 28707) [i686-linux] 


=begin
 I have tested following three codes which are the sample code in RDoc Documentation.
 
 t1.rb
 ====================================================
 a = Thread.new { puts "a"; Thread.stop; puts "c" }
 Thread.pass
 puts "Got here"
 a.run
 a.join
 sleep 1
 ====================================================
 
 t2.rb
 ====================================================
 a = Thread.new { print "a"; Thread.stop; print "c" }
 Thread.pass
 print "b"
 a.run
 a.join
 sleep 1
 ====================================================
 
 t3.rb
 ====================================================
 c = Thread.new { Thread.stop; puts "hey!" }
 c.wakeup
 sleep 1
 ====================================================
 
 Expected output
 t1.rb
 	a
 	Got here
 	c
 
 t2.rb
 	abc
 
 t3.rb
 	hey!
 		
 	
 on Ruby 1.8.6
 
 	$ ruby -v
 	ruby 1.8.6 (2009-06-08 patchlevel 369) [i686-linux]
 	$ ruby -v t1.rb
 	a
 	Got here
 	c
 	$ ruby -v t2.rb
 	abc$ ruby -v t3.rb
 	hey!
 	$
 
 Result
 	t1.rb ==> success
 	t2.rb ==> success
 	t3.rb ==> success
 
 on Ruby 1.9.1
 
 	$ ruby -v
 	ruby 1.9.1p378 (2010-01-10 revision 26273) [i686-linux]
 	$ ruby t1.rb
 	aGot here
 
 	c
 	$ ruby t2.rb
 	$ ruby t3.rb
 	$
 	
 Result
 	t1.rb ==> fail
 	t2.rb ==> success
 	t3.rb ==> fail
 	
 On Ruby 1.9.3dev
 
 	duometis02@Duo02:~$ ruby -v
 	ruby 1.9.3dev (2010-07-22 trunk 28707) [i686-linux]
 	$ ruby t1.rb
 	Got herea
 
 	t1.rb:5:in `join': deadlock detected (fatal)
 		from t1.rb:5:in `<main>'
 	$ ruby t2.rb
 	bat2.rb:5:in `join': deadlock detected (fatal)
 		from t2.rb:5:in `<main>'
 	$ ruby t3.rb
 	$
 
 Result
 	t1.rb ==> fail
 	t2.rb ==> fail
 	t3.rb ==> fail
 	
 Interesingly, the following code sometimes works and sometimes failed on Ruby 1.9.3.dev.
 t4.rb
 ====================================================
 c = Thread.new { Thread.stop; puts "hey!" }
 puts "Hi!"
 c.wakeup
 sleep 1
 ====================================================
 $ ruby -v
 ruby 1.9.3dev (2010-07-22 trunk 28707) [i686-linux]
 $ ruby t4.rb
 Hi!
 $ ruby t4.rb
 Hi!
 hey!
 $ ruby t4.rb
 Hi!
 hey!
 $ ruby t4.rb
 Hi!
 $
=end



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