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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26
27 #include <errno.h>
28 #include <strings.h>
29
30 #include <gmem_fmri.h>
31 #include <gmem.h>
32
33 void
gmem_fmri_init(fmd_hdl_t * hdl,gmem_fmri_t * fmri,nvlist_t * nvl,const char * fmt,...)34 gmem_fmri_init(fmd_hdl_t *hdl, gmem_fmri_t *fmri, nvlist_t *nvl,
35 const char *fmt, ...)
36 {
37 va_list ap;
38
39 va_start(ap, fmt);
40 gmem_vbufname(fmri->fmri_packnm, sizeof (fmri->fmri_packnm), fmt, ap);
41 va_end(ap);
42
43 if ((errno = nvlist_dup(nvl, &fmri->fmri_nvl, 0)) != 0 ||
44 (errno = nvlist_size(nvl, &fmri->fmri_packsz,
45 NV_ENCODE_NATIVE)) != 0)
46 fmd_hdl_abort(hdl, "failed to copy fmri for fmri create");
47
48 fmri->fmri_packbuf = fmd_hdl_alloc(hdl, fmri->fmri_packsz, FMD_SLEEP);
49
50 if ((errno = nvlist_pack(nvl, &fmri->fmri_packbuf, &fmri->fmri_packsz,
51 NV_ENCODE_NATIVE, 0)) != 0)
52 fmd_hdl_abort(hdl, "failed to pack fmri for fmri create");
53
54 gmem_fmri_write(hdl, fmri);
55 }
56
57 void
gmem_fmri_fini(fmd_hdl_t * hdl,gmem_fmri_t * fmri,int destroy)58 gmem_fmri_fini(fmd_hdl_t *hdl, gmem_fmri_t *fmri, int destroy)
59 {
60 if (destroy)
61 fmd_buf_destroy(hdl, NULL, fmri->fmri_packnm);
62
63 fmd_hdl_free(hdl, fmri->fmri_packbuf, fmri->fmri_packsz);
64 nvlist_free(fmri->fmri_nvl);
65 }
66
67 void
gmem_fmri_restore(fmd_hdl_t * hdl,gmem_fmri_t * fmri)68 gmem_fmri_restore(fmd_hdl_t *hdl, gmem_fmri_t *fmri)
69 {
70 if (fmd_buf_size(hdl, NULL, fmri->fmri_packnm) == 0) {
71 bzero(fmri, sizeof (gmem_fmri_t));
72 return;
73 }
74
75 if ((fmri->fmri_packbuf = gmem_buf_read(hdl, NULL, fmri->fmri_packnm,
76 fmri->fmri_packsz)) == NULL) {
77 fmd_hdl_abort(hdl, "failed to read fmri buffer %s",
78 fmri->fmri_packnm);
79 }
80
81 if (nvlist_unpack(fmri->fmri_packbuf, fmri->fmri_packsz,
82 &fmri->fmri_nvl, 0) != 0) {
83 fmd_hdl_abort(hdl, "failed to unpack fmri buffer %s\n",
84 fmri->fmri_packnm);
85 }
86 }
87
88 void
gmem_fmri_write(fmd_hdl_t * hdl,gmem_fmri_t * fmri)89 gmem_fmri_write(fmd_hdl_t *hdl, gmem_fmri_t *fmri)
90 {
91 size_t sz;
92
93 if ((sz = fmd_buf_size(hdl, NULL, fmri->fmri_packnm)) !=
94 fmri->fmri_packsz && sz != 0)
95 fmd_buf_destroy(hdl, NULL, fmri->fmri_packnm);
96
97 fmd_buf_write(hdl, NULL, fmri->fmri_packnm, fmri->fmri_packbuf,
98 fmri->fmri_packsz);
99 }
100