new_contents: #!/usr/local/bin/python
  import socket
  import select
  
  s=socket.socket()
  
  host=socket.gethostname()
  port=1234
  s.bind((host,port))
  
  s.listen(5)
  
  epoll=select.epoll()
  epoll.register(s.fileno(),select.EPOLLIN|select.EPOLLET)
  while True:
      epoll_list=epoll.poll()
      for fd.events in epoll_list:
          if fd == s.fileno():
              c,addr=s.accept()
              print 'Get connection.',addr
  
subject: Add epoll.