1 /* $NetBSD: lvm_base.c,v 1.1.1.1 2009/12/02 00:26:15 haad Exp $ */
2
3 /*
4 * Copyright (C) 2008,2009 Red Hat, Inc. All rights reserved.
5 *
6 * This file is part of LVM2.
7 *
8 * This copyrighted material is made available to anyone wishing to use,
9 * modify, copy, or redistribute it subject to the terms and conditions
10 * of the GNU Lesser General Public License v.2.1.
11 *
12 * You should have received a copy of the GNU Lesser General Public License
13 * along with this program; if not, write to the Free Software Foundation,
14 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15 */
16
17 #include "lib.h"
18 #include "lvm2app.h"
19 #include "toolcontext.h"
20 #include "locking.h"
21 #include "lvm-version.h"
22
lvm_library_get_version(void)23 const char *lvm_library_get_version(void)
24 {
25 return LVM_VERSION;
26 }
27
lvm_init(const char * system_dir)28 lvm_t lvm_init(const char *system_dir)
29 {
30 struct cmd_context *cmd;
31
32 /* FIXME: logging bound to handle
33 */
34
35 /* create context */
36 /* FIXME: split create_toolcontext */
37 cmd = create_toolcontext(1, system_dir);
38 if (!cmd)
39 return NULL;
40
41 if (stored_errno())
42 return (lvm_t) cmd;
43
44 /*
45 * FIXME: if an non memory error occured, return the cmd (maybe some
46 * cleanup needed).
47 */
48
49 /* initialization from lvm_run_command */
50 init_error_message_produced(0);
51
52 /* FIXME: locking_type config option needed? */
53 /* initialize locking */
54 if (!init_locking(-1, cmd)) {
55 /* FIXME: use EAGAIN as error code here */
56 log_error("Locking initialisation failed.");
57 lvm_quit((lvm_t) cmd);
58 return NULL;
59 }
60 /*
61 * FIXME: Use cmd->cmd_line as audit trail for liblvm calls. Used in
62 * archive() call. Possible example:
63 * cmd_line = "lvm_vg_create: vg1\nlvm_vg_extend vg1 /dev/sda1\n"
64 */
65 cmd->cmd_line = (char *)"liblvm";
66
67 return (lvm_t) cmd;
68 }
69
lvm_quit(lvm_t libh)70 void lvm_quit(lvm_t libh)
71 {
72 destroy_toolcontext((struct cmd_context *)libh);
73 }
74
lvm_config_reload(lvm_t libh)75 int lvm_config_reload(lvm_t libh)
76 {
77 /* FIXME: re-init locking needed here? */
78 if (!refresh_toolcontext((struct cmd_context *)libh))
79 return -1;
80 return 0;
81 }
82
83 /*
84 * FIXME: submit a patch to document the --config option
85 */
lvm_config_override(lvm_t libh,const char * config_settings)86 int lvm_config_override(lvm_t libh, const char *config_settings)
87 {
88 struct cmd_context *cmd = (struct cmd_context *)libh;
89 if (override_config_tree_from_string(cmd, config_settings))
90 return -1;
91 return 0;
92 }
93
lvm_errno(lvm_t libh)94 int lvm_errno(lvm_t libh)
95 {
96 return stored_errno();
97 }
98
lvm_errmsg(lvm_t libh)99 const char *lvm_errmsg(lvm_t libh)
100 {
101 return stored_errmsg();
102 }
103