1178479Sjb/*
2178479Sjb * CDDL HEADER START
3178479Sjb *
4178479Sjb * The contents of this file are subject to the terms of the
5178479Sjb * Common Development and Distribution License, Version 1.0 only
6178479Sjb * (the "License").  You may not use this file except in compliance
7178479Sjb * with the License.
8178479Sjb *
9178479Sjb * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10178479Sjb * or http://www.opensolaris.org/os/licensing.
11178479Sjb * See the License for the specific language governing permissions
12178479Sjb * and limitations under the License.
13178479Sjb *
14178479Sjb * When distributing Covered Code, include this CDDL HEADER in each
15178479Sjb * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16178479Sjb * If applicable, add the following below this CDDL HEADER, with the
17178479Sjb * fields enclosed by brackets "[]" replaced with your own identifying
18178479Sjb * information: Portions Copyright [yyyy] [name of copyright owner]
19178479Sjb *
20178479Sjb * CDDL HEADER END
21178479Sjb */
22178479Sjb/*
23178479Sjb * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24178479Sjb * Use is subject to license terms.
25178479Sjb */
26178479Sjb
27178479Sjb#ifndef	_DT_INTTAB_H
28178479Sjb#define	_DT_INTTAB_H
29178479Sjb
30178479Sjb#pragma ident	"%Z%%M%	%I%	%E% SMI"
31178479Sjb
32178479Sjb#include <dtrace.h>
33178479Sjb
34178479Sjb#ifdef	__cplusplus
35178479Sjbextern "C" {
36178479Sjb#endif
37178479Sjb
38178479Sjbtypedef struct dt_inthash {
39178479Sjb	struct dt_inthash *inh_hash;	/* next dt_inthash in hash chain */
40178479Sjb	struct dt_inthash *inh_next;	/* next dt_inthash in output table */
41178479Sjb	uint64_t inh_value;		/* value associated with this element */
42178479Sjb	uint_t inh_index;		/* index associated with this element */
43178479Sjb	uint_t inh_flags;		/* flags (see below) */
44178479Sjb} dt_inthash_t;
45178479Sjb
46178479Sjbtypedef struct dt_inttab {
47178479Sjb	dtrace_hdl_t *int_hdl;		/* pointer back to library handle */
48178479Sjb	dt_inthash_t **int_hash;	/* array of hash buckets */
49178479Sjb	uint_t int_hashlen;		/* size of hash bucket array */
50178479Sjb	uint_t int_nelems;		/* number of elements hashed */
51178479Sjb	dt_inthash_t *int_head;		/* head of table in index order */
52178479Sjb	dt_inthash_t *int_tail;		/* tail of table in index order */
53178479Sjb	uint_t int_index;		/* next index to hand out */
54178479Sjb} dt_inttab_t;
55178479Sjb
56178479Sjb#define	DT_INT_PRIVATE	0		/* only a single ref for this entry */
57178479Sjb#define	DT_INT_SHARED	1		/* multiple refs can share entry */
58178479Sjb
59178479Sjbextern dt_inttab_t *dt_inttab_create(dtrace_hdl_t *);
60178479Sjbextern void dt_inttab_destroy(dt_inttab_t *);
61178479Sjbextern int dt_inttab_insert(dt_inttab_t *, uint64_t, uint_t);
62178479Sjbextern uint_t dt_inttab_size(const dt_inttab_t *);
63178479Sjbextern void dt_inttab_write(const dt_inttab_t *, uint64_t *);
64178479Sjb
65178479Sjb#ifdef	__cplusplus
66178479Sjb}
67178479Sjb#endif
68178479Sjb
69178479Sjb#endif	/* _DT_INTTAB_H */
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