sys/kern/tty_inq.c

72 #define GETBIT(tib,boff) \
73 	((tib)->tib_quotes[(boff) / BMSIZE] & (1 << ((boff) % BMSIZE)))
74 #define SETBIT(tib,boff) \
75 	((tib)->tib_quotes[(boff) / BMSIZE] |= (1 << ((boff) % BMSIZE)))
76 #define CLRBIT(tib,boff) \
77 	((tib)->tib_quotes[(boff) / BMSIZE] &= ~(1 << ((boff) % BMSIZE)))
88 #define	TTYINQ_INSERT_TAIL(ti, tib) do {				\
90 		tib->tib_prev = NULL;					\
91 		tib->tib_next = ti->ti_firstblock;			\
92 		ti->ti_firstblock = tib;				\
94 		tib->tib_prev = ti->ti_lastblock;			\
95 		tib->tib_next = ti->ti_lastblock->tib_next;		\
96 		ti->ti_lastblock->tib_next = tib;			\
98 	if (tib->tib_next != NULL)					\
99 		tib->tib_next->tib_prev = tib;				\
110 #define	TTYINQ_RECYCLE(ti, tib) do {					\
112 		uma_zfree(ttyinq_zone, tib);				\
114 		TTYINQ_INSERT_TAIL(ti, tib);				\
120 	struct ttyinq_block *tib;
136 		tib = uma_zalloc(ttyinq_zone, M_WAITOK);
140 			uma_zfree(ttyinq_zone, tib);
144 		TTYINQ_INSERT_TAIL(ti, tib);
152 	struct ttyinq_block *tib;
157 	while ((tib = ti->ti_firstblock) != NULL) {
159 		uma_zfree(ttyinq_zone, tib);
174 		struct ttyinq_block *tib;
180 		tib = ti->ti_firstblock;
181 		if (tib == NULL)
233 			error = uiomove(tib->tib_data + cbegin,
238 			TTYINQ_RECYCLE(ti, tib);
245 			memcpy(ob, tib->tib_data + cbegin, clen - flen);
265 ttyinq_set_quotes(struct ttyinq_block *tib, size_t offset,
272 			SETBIT(tib, offset);
276 			CLRBIT(tib, offset);
284 	struct ttyinq_block *tib;
294 			tib = ti->ti_firstblock;
295 			if (tib == NULL) {
299 			ti->ti_lastblock = tib;
302 			tib = ti->ti_lastblock->tib_next;
303 			if (tib == NULL) {
307 			ti->ti_lastblock = tib;
309 			tib = ti->ti_lastblock;
315 		memcpy(tib->tib_data + boff, cbuf, l);
318 		ttyinq_set_quotes(tib, boff, l, quote);
355 	struct ttyinq_block *tib = ti->ti_firstblock;
362 	if (tib == NULL)
366 		if (strchr(breakc, tib->tib_data[boff]) && !GETBIT(tib, boff)) {
367 			*lastc = tib->tib_data[boff];
380 	struct ttyinq_block *tib;
389 		for (tib = ti->ti_firstblock; tib != NULL; tib = tib->tib_next)
390 			bzero(&tib->tib_data, sizeof tib->tib_data);
398 	struct ttyinq_block *tib = ti->ti_lastblock;
406 	*c = tib->tib_data[boff];
407 	*quote = GETBIT(tib, boff);
448     unsigned int offset, struct ttyinq_block *tib)
454 		tib = ti->ti_firstblock;
459 		MPASS(tib != NULL);
462 		iterator(data, tib->tib_data[boff], GETBIT(tib, boff));
466 			tib = tib->tib_next;
467 		MPASS(tib != NULL);