blob: 5ba1d06d817e01cd491836f5172991c6844a956e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _VOLUME_REQUEST_H
#define _VOLUME_REQUEST_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include "volume_devconfig.h"
/*
* request_t - struct to hold a layout request
*/
typedef struct request {
/*
* The devconfig_t representing the disk set at the top of the
* request hierarchy. This hierarchy represents the requested
* volume configuration, as read from the volume-request.
*/
devconfig_t *diskset_req;
/*
* The devconfig_t representing the disk set at the top of the
* resulting proposed volume hierarchy. This hierarchy
* represents the volume configuration proposed by the layout
* engine. This configuration will eventually be converted to
* a volume-spec.
*/
devconfig_t *diskset_config;
} request_t;
/*
* Constructor: Create a request_t struct. This request_t must be
* freed.
*
* @param request
* RETURN: a pointer to a new request_t
*
* @return 0
* if successful
*
* @return non-zero
* if an error occurred. Use get_error_string() to
* retrieve the associated error message.
*/
extern int new_request(request_t **request);
/*
* Free memory (recursively) allocated to a request_t struct
*
* @param arg
* pointer to the request_t struct to free
*/
extern void free_request(void *arg);
/*
* Set the disk set at the top of the request hierarchy
*
* @param request
* The request_t representing the request to modify
*
* @param diskset
* The devconfig_t representing the toplevel (disk set)
* device in the volume request hierarchy
*/
extern void request_set_diskset_req(request_t *request, devconfig_t *diskset);
/*
* Get the disk set at the top of the request hierarchy
*
* @param request
* The request_t representing the request to examine
*
* @return The devconfig_t representing the toplevel (disk set)
* device in the volume request hierarchy
*/
extern devconfig_t *request_get_diskset_req(request_t *request);
/*
* Set/get the disk set at the top of the proposed volume hierarchy
*
* @param request
* The request_t representing the request to modify
*
* @param diskset
* The devconfig_t representing the toplevel (disk set)
* device in the proposed volume hierarchy
*/
extern void request_set_diskset_config(
request_t *request, devconfig_t *diskset);
/*
* Get the disk set at the top of the request hierarchy
*
* @param request
* The request_t representing the request to examine
*
* @return The devconfig_t representing the toplevel (disk set)
* device in the proposed volume hierarchy
*/
extern devconfig_t *request_get_diskset_config(request_t *request);
#ifdef __cplusplus
}
#endif
#endif /* _VOLUME_REQUEST_H */
|
