gaiendpoint.py 文件源码

def subEndpoint(self, reactor, host, port, contextFactory):
        """
        Create an endpoint to connect to based on a single address result from
        L{getaddrinfo}.

        @param reactor: the reactor to connect to
        @type reactor: L{IReactorTCP}

        @param host: The IP address of the host to connect to, in presentation
            format.
        @type host: L{str}

        @param port: The numeric port number to connect to.
        @type port: L{int}

        @param contextFactory: If not L{None}, the OpenSSL context factory to
            use to produce client connections.

        @return: a stream client endpoint that will connect to the given host
            and port via the given reactor.
        @rtype: L{IStreamClientEndpoint}
        """
        if contextFactory is None:
            return TCP4ClientEndpoint(reactor, host, port)
        else:
            return SSL4ClientEndpoint(reactor, host, port, contextFactory)