sbusitf.wait = itf->pollitf->wait;
sbusitf.open = itf->pollitf->open;
sbusitf.on_readable = itf->pollitf->on_readable;
sbusitf.on_writable = itf->pollitf->on_writable;
sbusitf.on_hangup = itf->pollitf->on_hangup;
sbusitf.close = itf->pollitf->close;
sbusitf.wait = itf->pollitf->wait;
sbusitf.open = itf->pollitf->open;
sbusitf.on_readable = itf->pollitf->on_readable;
sbusitf.on_writable = itf->pollitf->on_writable;
sbusitf.on_hangup = itf->pollitf->on_hangup;
sbusitf.close = itf->pollitf->close;