server.py 文件源码

def bind(family, type, proto):
  """Create (or recreate) the actual socket object."""
  sock = socket.socket(family, type, proto)
  sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)

  # If listening on IPv6, activate dual-stack.
  if family == socket.AF_INET6:
    sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, False)

  return sock