udp.py 文件源码

def handleRead(self, rc, data, evt):
        if rc in (errno.WSAECONNREFUSED, errno.WSAECONNRESET,
                  ERROR_CONNECTION_REFUSED, ERROR_PORT_UNREACHABLE):
            if self._connectedAddr:
                self.protocol.connectionRefused()
        elif rc:
            log.msg("error in recvfrom -- %s (%s)" %
                    (errno.errorcode.get(rc, 'unknown error'), rc))
        else:
            try:
                self.protocol.datagramReceived(bytes(evt.buff[:data]),
                    _iocp.makesockaddr(evt.addr_buff))
            except:
                log.err()