Lines Matching defs:sc_tail
99 int sc_tail;
281 next = (sc->sc_tail + 1) % HIDRAW_BUFFER_SIZE;
285 bcopy(buf, sc->sc_q + sc->sc_tail * sc->sc_rdesc->rdsize, len);
289 bzero(sc->sc_q + sc->sc_tail * sc->sc_rdesc->rdsize + len,
292 sc->sc_qlen[sc->sc_tail] = len;
293 sc->sc_tail = next;
377 sc->sc_head = sc->sc_tail = 0;
395 sc->sc_tail = sc->sc_head = 0;
439 while (sc->sc_tail == sc->sc_head && !sc->sc_state.flush) {
457 while (sc->sc_tail != sc->sc_head && uio->uio_resid > 0) {
672 sc->sc_tail = sc->sc_head = 0;
911 if (sc->sc_head != sc->sc_tail)
962 ret = (sc->sc_head != sc->sc_tail) ? 1 : 0;