2 * collectd - src/vserver.c
3 * Copyright (C) 2006,2007 Sebastian Harl
4 * Copyright (C) 2007-2010 Florian octo Forster
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 * Sebastian Harl <sh at tokkee.org>
26 * Florian octo Forster <octo at collectd.org>
34 #include <sys/types.h>
38 #define PROCDIR "/proc/virtual"
41 # error "No applicable input method."
44 static int pagesize = 0;
46 static int vserver_init (void)
48 /* XXX Should we check for getpagesize () in configure?
49 * What's the right thing to do, if there is no getpagesize ()? */
50 pagesize = getpagesize ();
53 } /* static void vserver_init(void) */
55 static void traffic_submit (const char *plugin_instance,
56 const char *type_instance, derive_t rx, derive_t tx)
59 value_list_t vl = VALUE_LIST_INIT;
61 values[0].derive = rx;
62 values[1].derive = tx;
65 vl.values_len = STATIC_ARRAY_SIZE (values);
66 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
67 sstrncpy (vl.plugin, "vserver", sizeof (vl.plugin));
68 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
69 sstrncpy (vl.type, "if_octets", sizeof (vl.type));
70 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
72 plugin_dispatch_values (&vl);
73 } /* void traffic_submit */
75 static void load_submit (const char *plugin_instance,
76 gauge_t snum, gauge_t mnum, gauge_t lnum)
79 value_list_t vl = VALUE_LIST_INIT;
81 values[0].gauge = snum;
82 values[1].gauge = mnum;
83 values[2].gauge = lnum;
86 vl.values_len = STATIC_ARRAY_SIZE (values);
87 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
88 sstrncpy (vl.plugin, "vserver", sizeof (vl.plugin));
89 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
90 sstrncpy (vl.type, "load", sizeof (vl.type));
92 plugin_dispatch_values (&vl);
95 static void submit_gauge (const char *plugin_instance, const char *type,
96 const char *type_instance, gauge_t value)
100 value_list_t vl = VALUE_LIST_INIT;
102 values[0].gauge = value;
105 vl.values_len = STATIC_ARRAY_SIZE (values);
106 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
107 sstrncpy (vl.plugin, "vserver", sizeof (vl.plugin));
108 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
109 sstrncpy (vl.type, type, sizeof (vl.type));
110 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
112 plugin_dispatch_values (&vl);
113 } /* void submit_gauge */
115 static derive_t vserver_get_sock_bytes(const char *s)
126 status = parse_value (s, &v, DS_TYPE_DERIVE);
132 static int vserver_read (void)
137 proc = opendir (PROCDIR);
141 ERROR ("vserver plugin: fopen (%s): %s", PROCDIR,
142 sstrerror (errno, errbuf, sizeof (errbuf)));
153 char buffer[BUFSIZE];
161 dent = readdir (proc);
166 if (errno == 0) /* end of directory */
169 ERROR ("vserver plugin: failed to read directory %s: %s",
170 PROCDIR, sstrerror (errno, errbuf, sizeof (errbuf)));
175 if (dent->d_name[0] == '.')
178 len = ssnprintf (file, sizeof (file), PROCDIR "/%s", dent->d_name);
179 if ((len < 0) || (len >= BUFSIZE))
182 status = stat (file, &statbuf);
186 WARNING ("vserver plugin: stat (%s) failed: %s",
187 file, sstrerror (errno, errbuf, sizeof (errbuf)));
191 if (!S_ISDIR (statbuf.st_mode))
194 /* socket message accounting */
195 len = ssnprintf (file, sizeof (file),
196 PROCDIR "/%s/cacct", dent->d_name);
197 if ((len < 0) || ((size_t) len >= sizeof (file)))
200 if (NULL == (fh = fopen (file, "r")))
203 ERROR ("Cannot open '%s': %s", file,
204 sstrerror (errno, errbuf, sizeof (errbuf)));
207 while ((fh != NULL) && (NULL != fgets (buffer, BUFSIZE, fh)))
213 if (strsplit (buffer, cols, 4) < 4)
216 if (0 == strcmp (cols[0], "UNIX:"))
217 type_instance = "unix";
218 else if (0 == strcmp (cols[0], "INET:"))
219 type_instance = "inet";
220 else if (0 == strcmp (cols[0], "INET6:"))
221 type_instance = "inet6";
222 else if (0 == strcmp (cols[0], "OTHER:"))
223 type_instance = "other";
224 else if (0 == strcmp (cols[0], "UNSPEC:"))
225 type_instance = "unspec";
229 rx = vserver_get_sock_bytes (cols[1]);
230 tx = vserver_get_sock_bytes (cols[2]);
231 /* cols[3] == errors */
233 traffic_submit (dent->d_name, type_instance, rx, tx);
234 } /* while (fgets) */
242 /* thread information and load */
243 len = ssnprintf (file, sizeof (file),
244 PROCDIR "/%s/cvirt", dent->d_name);
245 if ((len < 0) || ((size_t) len >= sizeof (file)))
248 if (NULL == (fh = fopen (file, "r")))
251 ERROR ("Cannot open '%s': %s", file,
252 sstrerror (errno, errbuf, sizeof (errbuf)));
255 while ((fh != NULL) && (NULL != fgets (buffer, BUFSIZE, fh)))
257 int n = strsplit (buffer, cols, 4);
264 if (0 == strcmp (cols[0], "nr_threads:"))
265 type_instance = "total";
266 else if (0 == strcmp (cols[0], "nr_running:"))
267 type_instance = "running";
268 else if (0 == strcmp (cols[0], "nr_unintr:"))
269 type_instance = "uninterruptable";
270 else if (0 == strcmp (cols[0], "nr_onhold:"))
271 type_instance = "onhold";
275 value = atof (cols[1]);
276 submit_gauge (dent->d_name, "vs_threads", type_instance, value);
279 if (0 == strcmp (cols[0], "loadavg:"))
281 gauge_t snum = atof (cols[1]);
282 gauge_t mnum = atof (cols[2]);
283 gauge_t lnum = atof (cols[3]);
284 load_submit (dent->d_name, snum, mnum, lnum);
287 } /* while (fgets) */
295 /* processes and memory usage */
296 len = ssnprintf (file, sizeof (file),
297 PROCDIR "/%s/limit", dent->d_name);
298 if ((len < 0) || ((size_t) len >= sizeof (file)))
301 if (NULL == (fh = fopen (file, "r")))
304 ERROR ("Cannot open '%s': %s", file,
305 sstrerror (errno, errbuf, sizeof (errbuf)));
308 while ((fh != NULL) && (NULL != fgets (buffer, BUFSIZE, fh)))
310 char *type = "vs_memory";
314 if (strsplit (buffer, cols, 2) < 2)
317 if (0 == strcmp (cols[0], "PROC:"))
319 type = "vs_processes";
321 value = atof (cols[1]);
325 if (0 == strcmp (cols[0], "VM:"))
326 type_instance = "vm";
327 else if (0 == strcmp (cols[0], "VML:"))
328 type_instance = "vml";
329 else if (0 == strcmp (cols[0], "RSS:"))
330 type_instance = "rss";
331 else if (0 == strcmp (cols[0], "ANON:"))
332 type_instance = "anon";
336 value = atof (cols[1]) * pagesize;
339 submit_gauge (dent->d_name, type, type_instance, value);
340 } /* while (fgets) */
347 } /* while (readdir) */
352 } /* int vserver_read */
354 void module_register (void)
356 plugin_register_init ("vserver", vserver_init);
357 plugin_register_read ("vserver", vserver_read);
358 } /* void module_register(void) */
360 /* vim: set ts=4 sw=4 noexpandtab : */