tcprelay.py 文件源码

def handle_event(self, sock, fd, event):
        # handle events and dispatch to handlers
        if sock:
            logging.log(shell.VERBOSE_LEVEL, 'fd %d %s', fd,
                        eventloop.EVENT_NAMES.get(event, event))
        if sock == self._server_socket:
            if event & eventloop.POLL_ERR:
                # TODO
                raise Exception('server_socket error')
            try:
                logging.debug('accept')
                conn = self._server_socket.accept()
                TCPRelayHandler(self, self._fd_to_handlers,
                                self._eventloop, conn[0], self._config,
                                self._dns_resolver, self._is_local)
            except (OSError, IOError) as e:
                error_no = eventloop.errno_from_exception(e)
                if error_no in (errno.EAGAIN, errno.EINPROGRESS,
                                errno.EWOULDBLOCK):
                    return
                else:
                    shell.print_exception(e)
                    if self._config['verbose']:
                        traceback.print_exc()
        else:
            if sock:
                handler = self._fd_to_handlers.get(fd, None)
                if handler:
                    handler.handle_event(sock, event)
            else:
                logging.warn('poll removed fd')