udp_proxy.py 文件源码

def _GetProxyClient(self, address):
    """Gets a proxy client for a given client address.

    Returns the new proxy client, or an existing one if the address has been
    used before.
    """
    if address in self.proxy_clients:
      proxy_client = self.proxy_clients[address]
    else:
      proxy_client = ProxyClient(self, address)
      self.proxy_clients[address] = proxy_client
      reactor.listenUDP(0, proxy_client.udp)

    return proxy_client