sound/midi/midi.c

111 	struct mtx qlock;		/* Protects inq, outq and flags */
112 	MIDIQ_HEAD(, char) inq, outq;
115 	int	hiwat;			/* QLEN(outq)>High-water -> disable
346 	MIDIQ_INIT(m->outq, buf, outqsize);
349 	    (outqsize && !MIDIQ_BUF(m->outq)))
381 	if (MIDIQ_BUF(m->outq))
382 		free(MIDIQ_BUF(m->outq), M_MIDI);
591 	used = MIN(size, MIDIQ_LEN(m->outq));
594 		MIDIQ_DEQ(m->outq, buf, used);
595 	if (MIDIQ_EMPTY(m->outq)) {
599 	if (used && MIDIQ_AVAIL(m->outq) > m->hiwat) {
644 		if (MIDIQ_SIZE(m->outq) == 0)
660 	         * Only clear the inq, the outq might still have data to drain
823 		while (MIDIQ_AVAIL(m->outq) == 0) {
853 		used = MIN(MIDIQ_AVAIL(m->outq), uio->uio_resid);
856 		    uio->uio_resid, (intmax_t)MIDIQ_LEN(m->outq),
857 		    (intmax_t)MIDIQ_AVAIL(m->outq)));
864 		MIDIQ_ENQ(m->outq, buf, used);
908 		if (MIDIQ_AVAIL(m->outq) < m->hiwat)
1100 		if (MIDIQ_SIZE(m->outq) == 0)
1116 	         * Only clear the inq, the outq might still have data to drain
1209 		while (MIDIQ_AVAIL(m->outq) == 0) {
1239 		used = MIN(MIDIQ_AVAIL(m->outq), len);
1243 		    len, (intmax_t)MIDIQ_LEN(m->outq),
1244 		    (intmax_t)MIDIQ_AVAIL(m->outq)));
1250 		MIDIQ_ENQ(m->outq, buf, used);
1383 	free(MIDIQ_BUF(m->outq), M_MIDI);