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 2003 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <libintl.h>
30 #include "volume_request.h"
31 #include "volume_error.h"
32
33 /*
34 * Methods which manipulate a request_t struct
35 */
36
37 /*
38 * Constructor: Create a request_t struct. This request_t must be
39 * freed.
40 *
41 * @param request
42 * RETURN: a pointer to a new request_t
43 *
44 * @return 0
45 * if successful
46 *
47 * @return non-zero
48 * if an error occurred. Use get_error_string() to
49 * retrieve the associated error message.
50 */
51 int
new_request(request_t ** request)52 new_request(
53 request_t **request)
54 {
55 int error;
56 devconfig_t *diskset_req;
57 devconfig_t *diskset_config;
58
59 *request = (request_t *)calloc(1, sizeof (request_t));
60 if (*request == NULL) {
61 (void) volume_set_error(gettext("new_request calloc() failed\n"));
62 return (-1);
63 }
64
65 /* Create a new diskset_req */
66 if ((error = new_devconfig(&diskset_req, TYPE_DISKSET)) != 0) {
67 free_request(*request);
68 return (error);
69 }
70 request_set_diskset_req(*request, diskset_req);
71
72 /* Create a new diskset_config */
73 if ((error = new_devconfig(&diskset_config, TYPE_DISKSET)) != 0) {
74 free_request(*request);
75 return (error);
76 }
77 request_set_diskset_config(*request, diskset_config);
78
79 return (0);
80 }
81
82 /*
83 * Free memory (recursively) allocated to a request_t struct
84 *
85 * @param arg
86 * pointer to the request_t struct to free
87 */
88 void
free_request(void * arg)89 free_request(
90 void *arg)
91 {
92 request_t *request = (request_t *)arg;
93
94 if (request == NULL) {
95 return;
96 }
97
98 /* Free the diskset_req */
99 if (request->diskset_req != NULL) {
100 free_devconfig(request->diskset_req);
101 }
102
103 /* Free the diskset_config */
104 if (request->diskset_config != NULL) {
105 free_devconfig(request->diskset_config);
106 }
107
108 /* Free the devconfig itself */
109 free(request);
110 }
111
112 /*
113 * Set the disk set at the top of the request hierarchy
114 *
115 * @param request
116 * The request_t representing the request to modify
117 *
118 * @param diskset
119 * The devconfig_t representing the toplevel (disk set)
120 * device in the volume request hierarchy
121 */
122 void
request_set_diskset_req(request_t * request,devconfig_t * diskset)123 request_set_diskset_req(
124 request_t *request,
125 devconfig_t *diskset)
126 {
127 request->diskset_req = diskset;
128 }
129
130 /*
131 * Get the disk set at the top of the request hierarchy
132 *
133 * @param request
134 * The request_t representing the request to examine
135 *
136 * @return The devconfig_t representing the toplevel (disk set)
137 * device in the volume request hierarchy
138 */
139 devconfig_t *
request_get_diskset_req(request_t * request)140 request_get_diskset_req(
141 request_t *request)
142 {
143 return (request->diskset_req);
144 }
145
146 /*
147 * Set/get the disk set at the top of the proposed volume hierarchy
148 *
149 * @param request
150 * The request_t representing the request to modify
151 *
152 * @param diskset
153 * The devconfig_t representing the toplevel (disk set)
154 * device in the proposed volume hierarchy
155 */
156 void
request_set_diskset_config(request_t * request,devconfig_t * diskset)157 request_set_diskset_config(
158 request_t *request,
159 devconfig_t *diskset)
160 {
161 request->diskset_config = diskset;
162 }
163
164 /*
165 * Get the disk set at the top of the request hierarchy
166 *
167 * @param request
168 * The request_t representing the request to examine
169 *
170 * @return The devconfig_t representing the toplevel (disk set)
171 * device in the proposed volume hierarchy
172 */
173 devconfig_t *
request_get_diskset_config(request_t * request)174 request_get_diskset_config(
175 request_t *request)
176 {
177 return (request->diskset_config);
178 }
179