BZ_M_RUNNING
s->mode = BZ_M_RUNNING;
s->mode = BZ_M_RUNNING;
if (s->mode == BZ_M_RUNNING) {
if (s->mode != BZ_M_RUNNING && s->avail_in_expect == 0) {
case BZ_M_RUNNING:
s->mode = BZ_M_RUNNING;