abuf_wcommit
void abuf_wcommit(struct abuf *, int);
abuf_wcommit(&s->buf, n);
abuf_wcommit(&s->buf, ocnt * s->bpf);
void abuf_wcommit(struct abuf *, int);
abuf_wcommit(&s->sub.buf, s->round * s->sub.bpf);
abuf_wcommit(&s->sub.buf, s->round * s->sub.bpf);
abuf_wcommit(&s->sub.buf, s->round * s->sub.bpf);
abuf_wcommit(&oep->obuf, ocount);
abuf_wcommit(&f->slot->mix.buf, n);
abuf_wcommit(&s->mix.buf, f->ralign);