sample_em_connection2.rb

# coding: utf-8

require "eventmachine"
require "em-http"

clients = 120
HOST = "localhost"
PORT = 4567

class Client < EM::Connection
  attr_accessor :client_id

  def initialize(args)
    super
    @client_id = args[:client_id].to_s
  end

  def post_init
    EM::HttpRequest.new("http://localhost:4567/login.json?id=#{client_id}").get

    EM.add_periodic_timer(1) do
      EM::HttpRequest.new("http://localhost:4567/update.json?id=#{client_id}").get
    end
  end
end

EM.run do
  clients.times do |i|
    EM::connect(HOST, PORT, Client, :client_id => i)
  end
end