multi_thread_server.rb

require 'socket'

PORT = 8088

server = TCPServer.open(PORT)
children = []
puts "server.0 starting children"
9.times do |i|
  num = i + 1 # 0 is for main
  children << Thread.start(server) do |s|
    puts "server.#{num} starting"
    while sock = (s.accept rescue nil)
      puts "server.#{num} " + sock.read
      sock.close
    end
  end
end
puts "server.0 running"
running = true

Signal.trap(:INT) { running = false }
Signal.trap(:QUIT) { running = false }
Signal.trap(:TERM) { running = false }

while running
  sleep 0.1
end

server.close
children.all? { |c| c.join }