2 * collectd - src/load.c
3 * Copyright (C) 2005-2007 Florian octo Forster
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.
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.
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
19 * Florian octo Forster <octo at verplant.org>
26 #ifdef HAVE_SYS_LOADAVG_H
27 #include <sys/loadavg.h>
31 # include <statgrab.h>
34 #ifdef HAVE_GETLOADAVG
35 #if !defined(LOADAVG_1MIN) || !defined(LOADAVG_5MIN) || !defined(LOADAVG_15MIN)
36 #define LOADAVG_1MIN 0
37 #define LOADAVG_5MIN 1
38 #define LOADAVG_15MIN 2
40 #endif /* defined(HAVE_GETLOADAVG) */
42 static void load_submit (gauge_t snum, gauge_t mnum, gauge_t lnum)
45 value_list_t vl = VALUE_LIST_INIT;
47 values[0].gauge = snum;
48 values[1].gauge = mnum;
49 values[2].gauge = lnum;
52 vl.values_len = STATIC_ARRAY_SIZE (values);
53 vl.time = time (NULL);
54 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
55 sstrncpy (vl.plugin, "load", sizeof (vl.plugin));
56 sstrncpy (vl.type, "load", sizeof (vl.type));
58 plugin_dispatch_values (&vl);
61 static int load_read (void)
63 #if defined(HAVE_GETLOADAVG)
66 if (getloadavg (load, 3) == 3)
67 load_submit (load[LOADAVG_1MIN], load[LOADAVG_5MIN], load[LOADAVG_15MIN]);
71 WARNING ("load: getloadavg failed: %s",
72 sstrerror (errno, errbuf, sizeof (errbuf)));
74 /* #endif HAVE_GETLOADAVG */
76 #elif defined(KERNEL_LINUX)
77 gauge_t snum, mnum, lnum;
84 if ((loadavg = fopen ("/proc/loadavg", "r")) == NULL)
87 WARNING ("load: fopen: %s",
88 sstrerror (errno, errbuf, sizeof (errbuf)));
92 if (fgets (buffer, 16, loadavg) == NULL)
95 WARNING ("load: fgets: %s",
96 sstrerror (errno, errbuf, sizeof (errbuf)));
101 if (fclose (loadavg))
104 WARNING ("load: fclose: %s",
105 sstrerror (errno, errbuf, sizeof (errbuf)));
108 numfields = strsplit (buffer, fields, 8);
113 snum = atof (fields[0]);
114 mnum = atof (fields[1]);
115 lnum = atof (fields[2]);
117 load_submit (snum, mnum, lnum);
118 /* #endif KERNEL_LINUX */
120 #elif HAVE_LIBSTATGRAB
121 gauge_t snum, mnum, lnum;
124 if ((ls = sg_get_load_stats ()) == NULL)
131 load_submit (snum, mnum, lnum);
132 /* #endif HAVE_LIBSTATGRAB */
135 # error "No applicable input method."
141 void module_register (void)
143 plugin_register_read ("load", load_read);
144 } /* void module_register */