zmq test.

client.rb

#!/usr/bin/env ruby
#
require 'rubygems'
require 'zmq'

ctx = ZMQ::Context.new()
sock = ctx.socket(ZMQ::REQ)
sock.connect("tcp://127.0.0.1:5000")
sock.connect("tcp://127.0.0.1:5500")
sock.connect("tcp://127.0.0.1:6000")

(0..10).each do |i|
  msg = "hello #{i}"
  sock.send(msg)
  puts "Sent #{msg}"
  msg_in = sock.recv()
end

serv.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'zmq'

host = '127.0.0.1';
port = ARGV[0];

puts '-------------------------------------------'
puts "ZMQ version : #{ZMQ.version}"
puts "server start at tcp://#{host}:#{port}"

# Create context
ctx = ZMQ::Context.new();
sock = ctx.socket(ZMQ::REP)
addr = "tcp://#{host}:#{port}"
sock.bind(addr)

loop do
  msg = sock.recv()
  puts "Got #{msg}"
  sock.send(msg)
end