t_newstate
bwfm_newstate_cb(sc, &t->t_newstate);
t->t_newstate.state = nstate;
t->t_newstate.arg = arg;
t->t_newstate.state = nstate;
t->t_newstate.arg = arg;
bwi_newstate(ic, t->t_newstate.state, t->t_newstate.arg);
} t_newstate;