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, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef	_DT_INTTAB_H
28#define	_DT_INTTAB_H
29
30#pragma ident	"@(#)dt_inttab.h	1.2	05/06/08 SMI"
31
32#include <dtrace.h>
33
34#ifdef	__cplusplus
35extern "C" {
36#endif
37
38typedef struct dt_inthash {
39	struct dt_inthash *inh_hash;	/* next dt_inthash in hash chain */
40	struct dt_inthash *inh_next;	/* next dt_inthash in output table */
41	uint64_t inh_value;		/* value associated with this element */
42	uint_t inh_index;		/* index associated with this element */
43	uint_t inh_flags;		/* flags (see below) */
44} dt_inthash_t;
45
46typedef struct dt_inttab {
47	dtrace_hdl_t *int_hdl;		/* pointer back to library handle */
48	dt_inthash_t **int_hash;	/* array of hash buckets */
49	uint_t int_hashlen;		/* size of hash bucket array */
50	uint_t int_nelems;		/* number of elements hashed */
51	dt_inthash_t *int_head;		/* head of table in index order */
52	dt_inthash_t *int_tail;		/* tail of table in index order */
53	uint_t int_index;		/* next index to hand out */
54} dt_inttab_t;
55
56#define	DT_INT_PRIVATE	0		/* only a single ref for this entry */
57#define	DT_INT_SHARED	1		/* multiple refs can share entry */
58
59extern dt_inttab_t *dt_inttab_create(dtrace_hdl_t *);
60extern void dt_inttab_destroy(dt_inttab_t *);
61extern int dt_inttab_insert(dt_inttab_t *, uint64_t, uint_t);
62extern uint_t dt_inttab_size(const dt_inttab_t *);
63extern void dt_inttab_write(const dt_inttab_t *, uint64_t *);
64
65#ifdef	__cplusplus
66}
67#endif
68
69#endif	/* _DT_INTTAB_H */
70