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_COUNTER)
73 status = ssnprintf (buffer + offset,
76 vl->values[i].counter);
78 else /* if (store_rates == 1) */
81 rates = uc_get_rate (ds, vl);
84 WARNING ("csv plugin: "
85 "uc_get_rate failed.");
88 status = ssnprintf (buffer + offset,
93 else if (ds->ds[i].type == DS_TYPE_GAUGE)
95 status = ssnprintf (buffer + offset, buffer_len - offset,
96 ",%lf", vl->values[i].gauge);
98 else if (ds->ds[i].type == DS_TYPE_DERIVE)
100 if (store_rates == 0)
102 status = ssnprintf (buffer + offset,
105 vl->values[i].derive);
107 else /* if (store_rates == 1) */
110 rates = uc_get_rate (ds, vl);
113 WARNING ("csv plugin: "
114 "uc_get_rate failed.");
117 status = ssnprintf (buffer + offset,
122 else if (ds->ds[i].type == DS_TYPE_ABSOLUTE)
124 if (store_rates == 0)
126 status = ssnprintf (buffer + offset,
129 vl->values[i].absolute);
131 else /* if (store_rates == 1) */
134 rates = uc_get_rate (ds, vl);
137 WARNING ("csv plugin: "
138 "uc_get_rate failed.");
141 status = ssnprintf (buffer + offset,
147 if ((status < 1) || (status >= (buffer_len - offset)))
154 } /* for ds->ds_num */
158 } /* int value_list_to_string */
160 static int value_list_to_filename (char *buffer, int buffer_len,
161 const data_set_t *ds, const value_list_t *vl)
166 assert (0 == strcmp (ds->type, vl->type));
170 status = ssnprintf (buffer + offset, buffer_len - offset,
172 if ((status < 1) || (status >= buffer_len - offset))
177 status = ssnprintf (buffer + offset, buffer_len - offset,
179 if ((status < 1) || (status >= buffer_len - offset))
183 if (strlen (vl->plugin_instance) > 0)
184 status = ssnprintf (buffer + offset, buffer_len - offset,
185 "%s-%s/", vl->plugin, vl->plugin_instance);
187 status = ssnprintf (buffer + offset, buffer_len - offset,
189 if ((status < 1) || (status >= buffer_len - offset))
193 if (strlen (vl->type_instance) > 0)
194 status = ssnprintf (buffer + offset, buffer_len - offset,
195 "%s-%s", vl->type, vl->type_instance);
197 status = ssnprintf (buffer + offset, buffer_len - offset,
199 if ((status < 1) || (status >= buffer_len - offset))
208 /* TODO: Find a way to minimize the calls to `localtime_r',
209 * since they are pretty expensive.. */
211 if (localtime_r (&now, &stm) == NULL)
213 ERROR ("csv plugin: localtime_r failed");
217 strftime (buffer + offset, buffer_len - offset,
222 } /* int value_list_to_filename */
224 static int csv_create_file (const char *filename, const data_set_t *ds)
229 if (check_create_dir (filename))
232 csv = fopen (filename, "w");
236 ERROR ("csv plugin: fopen (%s) failed: %s",
238 sstrerror (errno, errbuf, sizeof (errbuf)));
242 fprintf (csv, "epoch");
243 for (i = 0; i < ds->ds_num; i++)
244 fprintf (csv, ",%s", ds->ds[i].name);
250 } /* int csv_create_file */
252 static int csv_config (const char *key, const char *value)
254 if (strcasecmp ("DataDir", key) == 0)
258 if (strcasecmp ("stdout", value) == 0)
263 else if (strcasecmp ("stderr", value) == 0)
268 datadir = strdup (value);
271 int len = strlen (datadir);
272 while ((len > 0) && (datadir[len - 1] == '/'))
284 else if (strcasecmp ("StoreRates", key) == 0)
286 if ((strcasecmp ("True", value) == 0)
287 || (strcasecmp ("Yes", value) == 0)
288 || (strcasecmp ("On", value) == 0))
302 } /* int csv_config */
304 static int csv_write (const data_set_t *ds, const value_list_t *vl,
305 user_data_t __attribute__((unused)) *user_data)
315 if (0 != strcmp (ds->type, vl->type)) {
316 ERROR ("csv plugin: DS type does not match value list type");
320 if (value_list_to_filename (filename, sizeof (filename), ds, vl) != 0)
323 DEBUG ("csv plugin: csv_write: filename = %s;", filename);
325 if (value_list_to_string (values, sizeof (values), ds, vl) != 0)
332 escape_string (filename, sizeof (filename));
334 /* Replace commas by colons for PUTVAL compatible output. */
335 for (i = 0; i < sizeof (values); i++)
339 else if (values[i] == ',')
343 fprintf (use_stdio == 1 ? stdout : stderr,
344 "PUTVAL %s interval=%i %s\n",
345 filename, interval_g, values);
349 if (stat (filename, &statbuf) == -1)
353 if (csv_create_file (filename, ds))
359 ERROR ("stat(%s) failed: %s", filename,
360 sstrerror (errno, errbuf,
365 else if (!S_ISREG (statbuf.st_mode))
367 ERROR ("stat(%s): Not a regular file!",
372 csv = fopen (filename, "a");
376 ERROR ("csv plugin: fopen (%s) failed: %s", filename,
377 sstrerror (errno, errbuf, sizeof (errbuf)));
380 csv_fd = fileno (csv);
382 memset (&fl, '\0', sizeof (fl));
384 fl.l_len = 0; /* till end of file */
385 fl.l_pid = getpid ();
387 fl.l_whence = SEEK_SET;
389 status = fcntl (csv_fd, F_SETLK, &fl);
393 ERROR ("csv plugin: flock (%s) failed: %s", filename,
394 sstrerror (errno, errbuf, sizeof (errbuf)));
399 fprintf (csv, "%s\n", values);
401 /* The lock is implicitely released. I we don't release it explicitely
402 * because the `FILE *' may need to flush a cache first */
406 } /* int csv_write */
408 void module_register (void)
410 plugin_register_config ("csv", csv_config,
411 config_keys, config_keys_num);
412 plugin_register_write ("csv", csv_write, /* user_data = */ NULL);
413 } /* void module_register */