From: Alex Young <alex@...>
Date: 2007-06-11T23:21:29+09:00
Subject: Custom Mutex methods undefined by fastthread

At the risk of asking an FAQ, I've run into the following problem:

irb(main):001:0> require 'thread'
=> true
irb(main):002:0> class Mutex; attr_accessor :owner; end
=> nil
irb(main):003:0> require 'rubygems'
=> true
irb(main):004:0> require 'fastthread'
=> true
irb(main):005:0> a = Mutex.new
=> #<Mutex:0xb788184c>
irb(main):006:0> a.owner = :foo
NoMethodError: undefined method `owner=' for #<Mutex:0xb788184c>
         from (irb):6


As you can see, the method definition prior to the fastthread require is 
lost.  This wasn't a problem with 0.6.4, but is a problem with 1.0.  Is 
this a genuine bug, or is there a good reason for this?

$ ruby -v
ruby 1.8.4 (2005-12-24) [i486-linux]

-- 
Alex