1 /**
2 * collectd - src/volume.c
3 * Copyright (C) 2013 Chad Malfait
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 *
18 * Authors:
19 * Chad Malfait <malfaitc at yahoo.com>
20 **/
22 #include "collectd.h"
23 #include "common.h"
24 #include "plugin.h"
25 #include <lvm2app.h>
27 static void volume_submit(const char *vol_name, gauge_t size, gauge_t free)
28 {
29 value_t values[2];
30 value_list_t vl = VALUE_LIST_INIT;
32 values[0].gauge = size;
33 values[1].gauge = free;
35 vl.values = values;
36 vl.values_len = STATIC_ARRAY_SIZE (values);
37 sstrncpy(vl.host, hostname_g, sizeof (vl.host));
38 sstrncpy(vl.plugin, "volume", sizeof (vl.plugin));
39 sstrncpy(vl.type, vol_name, sizeof (vl.type));
41 plugin_dispatch_values (&vl);
42 }
44 static int volume_read(void)
45 {
46 lvm_t lvm;
47 vg_t vg;
48 struct dm_list *vgnames;
49 struct lvm_str_list *strl;
51 lvm = lvm_init(NULL);
52 if (!lvm) {
53 fprintf(stderr, "lvm_init() failed\n");
54 }
56 vgnames = lvm_list_vg_names(lvm);
57 if (!vgnames) {
58 fprintf(stderr, "lvm_list_vg_names() failed\n");
59 }
61 dm_list_iterate_items(strl, vgnames) {
62 vg = lvm_vg_open(lvm, strl->str, "r", 0);
63 volume_submit(strl->str, lvm_vg_get_size(vg), lvm_vg_get_free_size(vg));
64 lvm_vg_close(vg);
65 }
67 lvm_quit(lvm);
68 return (0);
69 }
71 void module_register(void)
72 {
73 plugin_register_read("volume", volume_read);
74 } /* void module_register */