From: yangpeng <edge_hh@...>
Date: 2008-01-31T13:51:08+09:00
Subject: DRB+Mixin, a defect or an usage error?

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I found a strange thing when I include a module to a Drb object.I'm confused.
server.rb:require 'drb'require 'module_a'
class ServerHello    include TestModule1  def sayHello        puts 'I am server'      end  endDRb.start_service("druby://127.0.0.1:2222", ServerHello.new)DRb.thread.join
client.rb:
require 'drb' require 'module_a' include TestModule1DRb.start_service  info = DRbObject.new(nil, "druby://127.0.0.1:2222")      info.sayHello()  info.sayHello2 
module_a.rb:
require 'drb'module TestModule1 def sayHello2  puts "who am i" endend
The three files in one path, I run server.rb first, then client.rb. The result is.server.rb output:I am serverclietn.rb output:who am iBut my expected result is:server.rb output both "I am server" and "who am i"
the "sayHello2" is executed in local, not remote..(or exactly, it's "client invoke server, server invoke client backly", for if we changed "puts "who am i"" to "puts self", the result is "DRbObject")
If I comments the "include TestModule1" of client.rb, the result is good.But this is not I want, for there are many standard code share between server and client.
It's it a defect or my usage error?
 
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