3 * Copyright (C) 2007-2009 Florian octo Forster
4 * Copyright (C) 2009 Doug MacEachern
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; only version 2 of the License is applicable.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * Florian octo Forster <octo at verplant.org>
21 * Doug MacEachern <dougm@hyperic.com>
27 #include "utils_cache.h"
28 #include "utils_parse_option.h"
33 static const char *config_keys[] =
38 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
40 static char *datadir = NULL;
41 static int store_rates = 0;
42 static int use_stdio = 0;
44 static int value_list_to_string (char *buffer, int buffer_len,
45 const data_set_t *ds, const value_list_t *vl)
50 gauge_t *rates = NULL;
52 assert (0 == strcmp (ds->type, vl->type));
54 memset (buffer, '\0', buffer_len);
56 status = ssnprintf (buffer, buffer_len, "%u", (unsigned int) vl->time);
57 if ((status < 1) || (status >= buffer_len))
61 for (i = 0; i < ds->ds_num; i++)
63 if ((ds->ds[i].type != DS_TYPE_COUNTER)
64 && (ds->ds[i].type != DS_TYPE_GAUGE)
65 && (ds->ds[i].type != DS_TYPE_DERIVE)
66 && (ds->ds[i].type != DS_TYPE_ABSOLUTE))
69 if (ds->ds[i].type == DS_TYPE_GAUGE)
71 status = ssnprintf (buffer + offset, buffer_len - offset,
72 ",%lf", vl->values[i].gauge);
74 else if (store_rates != 0)
77 rates = uc_get_rate (ds, vl);
80 WARNING ("csv plugin: "
81 "uc_get_rate failed.");
84 status = ssnprintf (buffer + offset,
88 else if (ds->ds[i].type == DS_TYPE_COUNTER)
90 status = ssnprintf (buffer + offset,
93 vl->values[i].counter);
95 else if (ds->ds[i].type == DS_TYPE_DERIVE)
97 status = ssnprintf (buffer + offset,
100 vl->values[i].derive);
102 else if (ds->ds[i].type == DS_TYPE_ABSOLUTE)
104 status = ssnprintf (buffer + offset,
107 vl->values[i].absolute);
110 if ((status < 1) || (status >= (buffer_len - offset)))
117 } /* for ds->ds_num */
121 } /* int value_list_to_string */
123 static int value_list_to_filename (char *buffer, int buffer_len,
124 const data_set_t *ds, const value_list_t *vl)
129 assert (0 == strcmp (ds->type, vl->type));
133 status = ssnprintf (buffer + offset, buffer_len - offset,
135 if ((status < 1) || (status >= buffer_len - offset))
140 status = ssnprintf (buffer + offset, buffer_len - offset,
142 if ((status < 1) || (status >= buffer_len - offset))
146 if (strlen (vl->plugin_instance) > 0)
147 status = ssnprintf (buffer + offset, buffer_len - offset,
148 "%s-%s/", vl->plugin, vl->plugin_instance);
150 status = ssnprintf (buffer + offset, buffer_len - offset,
152 if ((status < 1) || (status >= buffer_len - offset))
156 if (strlen (vl->type_instance) > 0)
157 status = ssnprintf (buffer + offset, buffer_len - offset,
158 "%s-%s", vl->type, vl->type_instance);
160 status = ssnprintf (buffer + offset, buffer_len - offset,
162 if ((status < 1) || (status >= buffer_len - offset))
171 /* TODO: Find a way to minimize the calls to `localtime_r',
172 * since they are pretty expensive.. */
174 if (localtime_r (&now, &stm) == NULL)
176 ERROR ("csv plugin: localtime_r failed");
180 strftime (buffer + offset, buffer_len - offset,
185 } /* int value_list_to_filename */
187 static int csv_create_file (const char *filename, const data_set_t *ds)
192 if (check_create_dir (filename))
195 csv = fopen (filename, "w");
199 ERROR ("csv plugin: fopen (%s) failed: %s",
201 sstrerror (errno, errbuf, sizeof (errbuf)));
205 fprintf (csv, "epoch");
206 for (i = 0; i < ds->ds_num; i++)
207 fprintf (csv, ",%s", ds->ds[i].name);
213 } /* int csv_create_file */
215 static int csv_config (const char *key, const char *value)
217 if (strcasecmp ("DataDir", key) == 0)
221 if (strcasecmp ("stdout", value) == 0)
226 else if (strcasecmp ("stderr", value) == 0)
231 datadir = strdup (value);
234 int len = strlen (datadir);
235 while ((len > 0) && (datadir[len - 1] == '/'))
247 else if (strcasecmp ("StoreRates", key) == 0)
259 } /* int csv_config */
261 static int csv_write (const data_set_t *ds, const value_list_t *vl,
262 user_data_t __attribute__((unused)) *user_data)
272 if (0 != strcmp (ds->type, vl->type)) {
273 ERROR ("csv plugin: DS type does not match value list type");
277 if (value_list_to_filename (filename, sizeof (filename), ds, vl) != 0)
280 DEBUG ("csv plugin: csv_write: filename = %s;", filename);
282 if (value_list_to_string (values, sizeof (values), ds, vl) != 0)
289 escape_string (filename, sizeof (filename));
291 /* Replace commas by colons for PUTVAL compatible output. */
292 for (i = 0; i < sizeof (values); i++)
296 else if (values[i] == ',')
300 fprintf (use_stdio == 1 ? stdout : stderr,
301 "PUTVAL %s interval=%i %s\n",
302 filename, vl->interval, values);
306 if (stat (filename, &statbuf) == -1)
310 if (csv_create_file (filename, ds))
316 ERROR ("stat(%s) failed: %s", filename,
317 sstrerror (errno, errbuf,
322 else if (!S_ISREG (statbuf.st_mode))
324 ERROR ("stat(%s): Not a regular file!",
329 csv = fopen (filename, "a");
333 ERROR ("csv plugin: fopen (%s) failed: %s", filename,
334 sstrerror (errno, errbuf, sizeof (errbuf)));
337 csv_fd = fileno (csv);
339 memset (&fl, '\0', sizeof (fl));
341 fl.l_len = 0; /* till end of file */
342 fl.l_pid = getpid ();
344 fl.l_whence = SEEK_SET;
346 status = fcntl (csv_fd, F_SETLK, &fl);
350 ERROR ("csv plugin: flock (%s) failed: %s", filename,
351 sstrerror (errno, errbuf, sizeof (errbuf)));
356 fprintf (csv, "%s\n", values);
358 /* The lock is implicitely released. I we don't release it explicitely
359 * because the `FILE *' may need to flush a cache first */
363 } /* int csv_write */
365 void module_register (void)
367 plugin_register_config ("csv", csv_config,
368 config_keys, config_keys_num);
369 plugin_register_write ("csv", csv_write, /* user_data = */ NULL);
370 } /* void module_register */