xref: /onnv-gate/usr/src/lib/libdtrace/common/dt_strtab.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #ifndef	_DT_STRTAB_H
28*0Sstevel@tonic-gate #define	_DT_STRTAB_H
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate #include <sys/types.h>
33*0Sstevel@tonic-gate 
34*0Sstevel@tonic-gate #ifdef	__cplusplus
35*0Sstevel@tonic-gate extern "C" {
36*0Sstevel@tonic-gate #endif
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate typedef struct dt_strhash {
39*0Sstevel@tonic-gate 	const char *str_data;		/* pointer to actual string data */
40*0Sstevel@tonic-gate 	ulong_t str_buf;		/* index of string data buffer */
41*0Sstevel@tonic-gate 	size_t str_off;			/* offset in bytes of this string */
42*0Sstevel@tonic-gate 	size_t str_len;			/* length in bytes of this string */
43*0Sstevel@tonic-gate 	struct dt_strhash *str_next;	/* next string in hash chain */
44*0Sstevel@tonic-gate } dt_strhash_t;
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate typedef struct dt_strtab {
47*0Sstevel@tonic-gate 	dt_strhash_t **str_hash;	/* array of hash buckets */
48*0Sstevel@tonic-gate 	ulong_t str_hashsz;		/* size of hash bucket array */
49*0Sstevel@tonic-gate 	char **str_bufs;		/* array of buffer pointers */
50*0Sstevel@tonic-gate 	char *str_ptr;			/* pointer to current buffer location */
51*0Sstevel@tonic-gate 	ulong_t str_nbufs;		/* size of buffer pointer array */
52*0Sstevel@tonic-gate 	size_t str_bufsz;		/* size of individual buffer */
53*0Sstevel@tonic-gate 	ulong_t str_nstrs;		/* total number of strings in strtab */
54*0Sstevel@tonic-gate 	size_t str_size;		/* total size of strings in bytes */
55*0Sstevel@tonic-gate } dt_strtab_t;
56*0Sstevel@tonic-gate 
57*0Sstevel@tonic-gate typedef ssize_t dt_strtab_write_f(const char *, size_t, size_t, void *);
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate extern dt_strtab_t *dt_strtab_create(size_t);
60*0Sstevel@tonic-gate extern void dt_strtab_destroy(dt_strtab_t *);
61*0Sstevel@tonic-gate extern ssize_t dt_strtab_insert(dt_strtab_t *, const char *);
62*0Sstevel@tonic-gate extern size_t dt_strtab_size(const dt_strtab_t *);
63*0Sstevel@tonic-gate extern ssize_t dt_strtab_write(const dt_strtab_t *,
64*0Sstevel@tonic-gate     dt_strtab_write_f *, void *);
65*0Sstevel@tonic-gate extern ulong_t dt_strtab_hash(const char *, size_t *);
66*0Sstevel@tonic-gate 
67*0Sstevel@tonic-gate #ifdef	__cplusplus
68*0Sstevel@tonic-gate }
69*0Sstevel@tonic-gate #endif
70*0Sstevel@tonic-gate 
71*0Sstevel@tonic-gate #endif	/* _DT_STRTAB_H */
72