sys/kern/tty_inq.c

70 #define GETBIT(tib,boff) \
71 	((tib)->tib_quotes[(boff) / BMSIZE] & (1 << ((boff) % BMSIZE)))
72 #define SETBIT(tib,boff) \
73 	((tib)->tib_quotes[(boff) / BMSIZE] |= (1 << ((boff) % BMSIZE)))
74 #define CLRBIT(tib,boff) \
75 	((tib)->tib_quotes[(boff) / BMSIZE] &= ~(1 << ((boff) % BMSIZE)))
86 #define	TTYINQ_INSERT_TAIL(ti, tib) do {				\
88 		tib->tib_prev = NULL;					\
89 		tib->tib_next = ti->ti_firstblock;			\
90 		ti->ti_firstblock = tib;				\
92 		tib->tib_prev = ti->ti_lastblock;			\
93 		tib->tib_next = ti->ti_lastblock->tib_next;		\
94 		ti->ti_lastblock->tib_next = tib;			\
96 	if (tib->tib_next != NULL)					\
97 		tib->tib_next->tib_prev = tib;				\
108 #define	TTYINQ_RECYCLE(ti, tib) do {					\
110 		uma_zfree(ttyinq_zone, tib);				\
112 		TTYINQ_INSERT_TAIL(ti, tib);				\
118 	struct ttyinq_block *tib;
134 		tib = uma_zalloc(ttyinq_zone, M_WAITOK);
137 		TTYINQ_INSERT_TAIL(ti, tib);
144 	struct ttyinq_block *tib;
149 	while ((tib = ti->ti_firstblock) != NULL) {
151 		uma_zfree(ttyinq_zone, tib);
166 		struct ttyinq_block *tib;
172 		tib = ti->ti_firstblock;
173 		if (tib == NULL)
225 			error = uiomove(tib->tib_data + cbegin,
230 			TTYINQ_RECYCLE(ti, tib);
237 			memcpy(ob, tib->tib_data + cbegin, clen - flen);
257 ttyinq_set_quotes(struct ttyinq_block *tib, size_t offset,
264 			SETBIT(tib, offset);
268 			CLRBIT(tib, offset);
276 	struct ttyinq_block *tib;
286 			tib = ti->ti_firstblock;
287 			if (tib == NULL) {
291 			ti->ti_lastblock = tib;
294 			tib = ti->ti_lastblock->tib_next;
295 			if (tib == NULL) {
299 			ti->ti_lastblock = tib;
301 			tib = ti->ti_lastblock;
307 		memcpy(tib->tib_data + boff, cbuf, l);
310 		ttyinq_set_quotes(tib, boff, l, quote);
347 	struct ttyinq_block *tib = ti->ti_firstblock;
354 	if (tib == NULL)
358 		if (index(breakc, tib->tib_data[boff]) && !GETBIT(tib, boff)) {
359 			*lastc = tib->tib_data[boff];
372 	struct ttyinq_block *tib;
381 		for (tib = ti->ti_firstblock; tib != NULL; tib = tib->tib_next)
382 			bzero(&tib->tib_data, sizeof tib->tib_data);
390 	struct ttyinq_block *tib = ti->ti_lastblock;
398 	*c = tib->tib_data[boff];
399 	*quote = GETBIT(tib, boff);
440     unsigned int offset, struct ttyinq_block *tib)
446 		tib = ti->ti_firstblock;
451 		MPASS(tib != NULL);
454 		iterator(data, tib->tib_data[boff], GETBIT(tib, boff));
458 			tib = tib->tib_next;
459 		MPASS(tib != NULL);