From: Regis d'Aubarede <lists@...>
Date: 2013-06-04T04:38:53+09:00
Subject: Re: TCPServer/Socket and Marshal problem

Socket reading/writing with send/recv works :

============================================
# encode: utf-8

require "thread"
require 'socket'
require 'gserver'

Thread.abort_on_exception=true

$stdout.sync=true
class Tcp_Server < GServer
  def serve( io )
    io.set_encoding 'ASCII-8BIT'
    until io.closed?
      size=io.recv(4).to_i
      data= io.recv(size)
      if data.size==size
        puts "received : '#{Marshal.load(data).join(", ")}"
      else
        puts "strange size received #{data.size}"
      end
      io.send('a')
    end
  end
end
th=Tcp_Server.new(2244,"localhost")
th.start        # Start server

Thread.new {
  sleep(0.8)
  a=["starting","Ααλή", "Ααρών", "αάτρευτα", "αάτρευτε", 
"Άαχεν","Ending"]
  puts a.join(" ")
  buff=Marshal.dump(a)
  socket = TCPSocket.new("localhost",2244)
  socket.set_encoding 'ASCII-8BIT'
  socket.send("%4d" % [buff.size],0)
  socket.send(buff,0)
  socket.flush
  socket.recv(1)
  socket.close
}


th.join
==========================================================
>ruby utf8.rb
starting Ααλή Ααρών αάτρευτα αάτρευτε Άαχεν Ending
received : 'starting, Ααλή, Ααρών, αάτρευτα, αάτρευτε, Άαχεν, Ending

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