43 dt_strtab_grow(dt_strtab_t *sp)  in dt_strtab_grow()  argument
47 	if ((ptr = malloc(sp->str_bufsz)) == NULL)  in dt_strtab_grow()
50 	bufs = realloc(sp->str_bufs, (sp->str_nbufs + 1) * sizeof (char *));  in dt_strtab_grow()
57 	sp->str_nbufs++;  in dt_strtab_grow()
58 	sp->str_bufs = bufs;  in dt_strtab_grow()
59 	sp->str_ptr = ptr;  in dt_strtab_grow()
60 	sp->str_bufs[sp->str_nbufs - 1] = sp->str_ptr;  in dt_strtab_grow()
68 	dt_strtab_t *sp = malloc(sizeof (dt_strtab_t));  in dt_strtab_create()  local
73 	if (sp == NULL)  in dt_strtab_create()
76 	bzero(sp, sizeof (dt_strtab_t));  in dt_strtab_create()
77 	sp->str_hash = calloc(nbuckets, sizeof (dt_strhash_t *));  in dt_strtab_create()
79 	if (sp->str_hash == NULL)  in dt_strtab_create()
82 	sp->str_hashsz = nbuckets;  in dt_strtab_create()
83 	sp->str_bufs = NULL;  in dt_strtab_create()
84 	sp->str_ptr = NULL;  in dt_strtab_create()
85 	sp->str_nbufs = 0;  in dt_strtab_create()
86 	sp->str_bufsz = bufsz;  in dt_strtab_create()
87 	sp->str_nstrs = 1;  in dt_strtab_create()
88 	sp->str_size = 1;  in dt_strtab_create()
90 	if (dt_strtab_grow(sp) == -1)  in dt_strtab_create()
93 	*sp->str_ptr++ = '\0';  in dt_strtab_create()
94 	return (sp);  in dt_strtab_create()
97 	dt_strtab_destroy(sp);  in dt_strtab_create()
102 dt_strtab_destroy(dt_strtab_t *sp)  in dt_strtab_destroy()  argument
107 	for (i = 0; i < sp->str_hashsz; i++) {  in dt_strtab_destroy()
108 		for (hp = sp->str_hash[i]; hp != NULL; hp = hq) {  in dt_strtab_destroy()
114 	for (i = 0; i < sp->str_nbufs; i++)  in dt_strtab_destroy()
115 		free(sp->str_bufs[i]);  in dt_strtab_destroy()
117 	if (sp->str_hash != NULL)  in dt_strtab_destroy()
118 		free(sp->str_hash);  in dt_strtab_destroy()
119 	if (sp->str_bufs != NULL)  in dt_strtab_destroy()
120 		free(sp->str_bufs);  in dt_strtab_destroy()
122 	free(sp);  in dt_strtab_destroy()
148 dt_strtab_compare(dt_strtab_t *sp, dt_strhash_t *hp,  in dt_strtab_compare()  argument
157 		if (buf == sp->str_bufs[b] + sp->str_bufsz)  in dt_strtab_compare()
158 			buf = sp->str_bufs[++b];  in dt_strtab_compare()
160 		resid = sp->str_bufs[b] + sp->str_bufsz - buf;  in dt_strtab_compare()
175 dt_strtab_copyin(dt_strtab_t *sp, const char *str, size_t len)  in dt_strtab_copyin()  argument
177 	char *old_p = sp->str_ptr;  in dt_strtab_copyin()
178 	ulong_t old_n = sp->str_nbufs;  in dt_strtab_copyin()
180 	ulong_t b = sp->str_nbufs - 1;  in dt_strtab_copyin()
184 		if (sp->str_ptr == sp->str_bufs[b] + sp->str_bufsz) {  in dt_strtab_copyin()
185 			if (dt_strtab_grow(sp) == -1)  in dt_strtab_copyin()
190 		resid = sp->str_bufs[b] + sp->str_bufsz - sp->str_ptr;  in dt_strtab_copyin()
192 		bcopy(str, sp->str_ptr, n);  in dt_strtab_copyin()
194 		sp->str_ptr += n;  in dt_strtab_copyin()
202 	while (sp->str_nbufs != old_n)  in dt_strtab_copyin()
203 		free(sp->str_bufs[--sp->str_nbufs]);  in dt_strtab_copyin()
205 	sp->str_ptr = old_p;  in dt_strtab_copyin()
210 dt_strtab_empty(dt_strtab_t *sp)  in dt_strtab_empty()  argument
213 	return (sp->str_nstrs == 1);  in dt_strtab_empty()
217 dt_strtab_index(dt_strtab_t *sp, const char *str)  in dt_strtab_index()  argument
226 	h = dt_strtab_hash(str, &len) % sp->str_hashsz;  in dt_strtab_index()
228 	for (hp = sp->str_hash[h]; hp != NULL; hp = hp->str_next) {  in dt_strtab_index()
229 		if (dt_strtab_compare(sp, hp, str, len + 1) == 0)  in dt_strtab_index()
237 dt_strtab_insert(dt_strtab_t *sp, const char *str)  in dt_strtab_insert()  argument
244 	if ((off = dt_strtab_index(sp, str)) != -1)  in dt_strtab_insert()
247 	h = dt_strtab_hash(str, &len) % sp->str_hashsz;  in dt_strtab_insert()
256 	hp->str_data = sp->str_ptr;  in dt_strtab_insert()
257 	hp->str_buf = sp->str_nbufs - 1;  in dt_strtab_insert()
258 	hp->str_off = sp->str_size;  in dt_strtab_insert()
260 	hp->str_next = sp->str_hash[h];  in dt_strtab_insert()
266 	if (dt_strtab_copyin(sp, str, len + 1) == -1) {  in dt_strtab_insert()
271 	sp->str_nstrs++;  in dt_strtab_insert()
272 	sp->str_size += len + 1;  in dt_strtab_insert()
273 	sp->str_hash[h] = hp;  in dt_strtab_insert()
279 dt_strtab_size(const dt_strtab_t *sp)  in dt_strtab_size()  argument
281 	return (sp->str_size);  in dt_strtab_size()
285 dt_strtab_write(const dt_strtab_t *sp, dt_strtab_write_f *func, void *private)  in dt_strtab_write()  argument
291 	for (i = 0; i < sp->str_nbufs; i++, total += res) {  in dt_strtab_write()
292 		if (i == sp->str_nbufs - 1)  in dt_strtab_write()
293 			n = sp->str_ptr - sp->str_bufs[i];  in dt_strtab_write()
295 			n = sp->str_bufsz;  in dt_strtab_write()
297 		if ((res = func(sp->str_bufs[i], n, total, private)) <= 0)  in dt_strtab_write()
301 	if (total == 0 && sp->str_size != 0)  in dt_strtab_write()