1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _DT_STRTAB_H
28#define _DT_STRTAB_H
29
30#pragma ident "%Z%%M% %I% %E% SMI"
31
32#include <sys/types.h>
33
34#ifdef __cplusplus
35extern "C" {
36#endif
37
38typedef struct dt_strhash {
39 const char *str_data; /* pointer to actual string data */
40 ulong_t str_buf; /* index of string data buffer */
41 size_t str_off; /* offset in bytes of this string */
42 size_t str_len; /* length in bytes of this string */
43 struct dt_strhash *str_next; /* next string in hash chain */
44} dt_strhash_t;
45
46typedef struct dt_strtab {
47 dt_strhash_t **str_hash; /* array of hash buckets */
48 ulong_t str_hashsz; /* size of hash bucket array */
49 char **str_bufs; /* array of buffer pointers */
50 char *str_ptr; /* pointer to current buffer location */
51 ulong_t str_nbufs; /* size of buffer pointer array */
52 size_t str_bufsz; /* size of individual buffer */
53 ulong_t str_nstrs; /* total number of strings in strtab */
54 size_t str_size; /* total size of strings in bytes */
55} dt_strtab_t;
56
57typedef ssize_t dt_strtab_write_f(const char *, size_t, size_t, void *);
58
59extern dt_strtab_t *dt_strtab_create(size_t);
60extern void dt_strtab_destroy(dt_strtab_t *);
61extern ssize_t dt_strtab_index(dt_strtab_t *, const char *);
62extern ssize_t dt_strtab_insert(dt_strtab_t *, const char *);
63extern size_t dt_strtab_size(const dt_strtab_t *);
64extern ssize_t dt_strtab_write(const dt_strtab_t *,
65 dt_strtab_write_f *, void *);
66extern ulong_t dt_strtab_hash(const char *, size_t *);
67
68#ifdef __cplusplus
69}
70#endif
71
72#endif /* _DT_STRTAB_H */
73