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 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _DT_BUF_H
28#define _DT_BUF_H
29
30#pragma ident "%Z%%M% %I% %E% SMI"
31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
36#include <dtrace.h>
37
38typedef struct dt_buf {
39 const char *dbu_name; /* string name for debugging */
40 uchar_t *dbu_buf; /* buffer base address */
41 uchar_t *dbu_ptr; /* current buffer location */
42 size_t dbu_len; /* buffer size in bytes */
43 int dbu_err; /* errno value if error */
44 int dbu_resizes; /* number of resizes */
45} dt_buf_t;
46
47extern void dt_buf_create(dtrace_hdl_t *, dt_buf_t *, const char *, size_t);
48extern void dt_buf_destroy(dtrace_hdl_t *, dt_buf_t *);
49extern void dt_buf_reset(dtrace_hdl_t *, dt_buf_t *);
50
51extern void dt_buf_write(dtrace_hdl_t *, dt_buf_t *,
52 const void *, size_t, size_t);
53
54extern void dt_buf_concat(dtrace_hdl_t *, dt_buf_t *,
55 const dt_buf_t *, size_t);
56
57extern size_t dt_buf_offset(const dt_buf_t *, size_t);
58extern size_t dt_buf_len(const dt_buf_t *);
59
60extern int dt_buf_error(const dt_buf_t *);
61extern void *dt_buf_ptr(const dt_buf_t *);
62
63extern void *dt_buf_claim(dtrace_hdl_t *, dt_buf_t *);
64
65#ifdef __cplusplus
66}
67#endif
68
69#endif /* _DT_BUF_H */
70