From: "P. A." <shamaoke@...>
Date: 2009-12-08T16:46:12+09:00
Subject: Re: WEBrick doesn't work (permission/port error)

I solved it by myself.

The problem was that I stated a WEBrick server without initial 
configuration because I used the Hash#merge method instead Hash#merge! 
(mutator).

So, the code should be changed to work properly.

# IT DOESN'T WORKS!
# encoding: utf-8

require 'webrick'

class Server
  class << self
    def start(config = {})
      config.merge(:BindAddress => '0.0.0.0', :Port => 4321) # the error 
source
      puts config # returns {} on start
      server = WEBrick::HTTPServer.new(config)
      trap('INT') { server.shutdown }
      server.start
    end
  end
end

# WORKS!
# encoding: utf-8

require 'webrick'

class Server
  class << self
    def start(config = {})
      config.merge!(:BindAddress => '0.0.0.0', :Port => 4321) # changes 
the config hash
      puts config # returns {:BindAddress => '0.0.0.0', :Port => 4321} 
on start
      server = WEBrick::HTTPServer.new(config)
      trap('INT') { server.shutdown }
      server.start
    end
  end
end

Cheers!
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