thread_2_02.rb

require 'socket'

# run on localhost:3000
server = TCPServer.new('localhost', 3000)

loop do
  Thread.start(server.accept) do |socket|
    request = socket.gets
    method, path = request.split
    sleep_time = rand(5)

    # fake calculation is here
    sleep(sleep_time)

    response = "Hello World!\n" +
              "your request: #{request}" +
              "method: #{method.inspect}\n" +
              "path: #{path.inspect}\n" +
              "sleep time: #{sleep_time}\n"

    socket.print "HTTP/1.1 200 OK\r\n" +
                "Content-Type: text/plain\r\n" +
                "Connection: close\r\n" +
                "Content-Length: #{response.bytesize}\r\n"

    socket.print "\r\n"
    socket.print response

    socket.close
  end
end