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/*
24 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
25 * Use is subject to license terms.
26 */
27
28#ifndef	_FMD_BUF_H
29#define	_FMD_BUF_H
30
31#pragma ident	"%Z%%M%	%I%	%E% SMI"
32
33#include <sys/types.h>
34
35#ifdef	__cplusplus
36extern "C" {
37#endif
38
39typedef struct fmd_buf {
40	char *buf_name;			/* name of this buffer */
41	struct fmd_buf *buf_next;	/* next buffer in hash chain */
42	void *buf_data;			/* buffer data storage */
43	size_t buf_size;		/* buffer size */
44	uint_t buf_flags;		/* buffer flags (see below) */
45} fmd_buf_t;
46
47#define	FMD_BUF_DIRTY	0x1		/* buffer is dirty (needs checkpoint) */
48
49typedef void fmd_buf_f(fmd_buf_t *, void *);
50
51typedef struct fmd_buf_hash {
52	fmd_buf_t **bh_hash;		/* hash bucket array for buffers */
53	uint_t bh_hashlen;		/* length of hash bucket array */
54	uint_t bh_count;		/* number of buffers in hash */
55} fmd_buf_hash_t;
56
57extern void fmd_buf_hash_create(fmd_buf_hash_t *);
58extern size_t fmd_buf_hash_destroy(fmd_buf_hash_t *);
59extern void fmd_buf_hash_apply(fmd_buf_hash_t *, fmd_buf_f *, void *);
60extern void fmd_buf_hash_commit(fmd_buf_hash_t *);
61extern uint_t fmd_buf_hash_count(fmd_buf_hash_t *);
62
63extern fmd_buf_t *fmd_buf_insert(fmd_buf_hash_t *, const char *, size_t);
64extern fmd_buf_t *fmd_buf_lookup(fmd_buf_hash_t *, const char *);
65extern void fmd_buf_delete(fmd_buf_hash_t *, const char *);
66
67#ifdef	__cplusplus
68}
69#endif
70
71#endif	/* _FMD_BUF_H */
72