tcp.py 文件源码

def __init__(self, host, port, bindAddress, connector, reactor=None):
        # BaseClient.__init__ is invoked later
        self.connector = connector
        self.addr = (host, port)

        whenDone = self.resolveAddress
        err = None
        skt = None

        if abstract.isIPAddress(host):
            self._requiresResolution = False
        elif abstract.isIPv6Address(host):
            self._requiresResolution = False
            self.addr = _resolveIPv6(host, port)
            self.addressFamily = socket.AF_INET6
            self._addressType = address.IPv6Address
        else:
            self._requiresResolution = True
        try:
            skt = self.createInternetSocket()
        except socket.error as se:
            err = error.ConnectBindError(se.args[0], se.args[1])
            whenDone = None
        if whenDone and bindAddress is not None:
            try:
                if abstract.isIPv6Address(bindAddress[0]):
                    bindinfo = _resolveIPv6(*bindAddress)
                else:
                    bindinfo = bindAddress
                skt.bind(bindinfo)
            except socket.error as se:
                err = error.ConnectBindError(se.args[0], se.args[1])
                whenDone = None
        self._finishInit(whenDone, skt, err, reactor)