/**
* collectd - src/rrdcached.c
- * Copyright (C) 2008 Florian octo Forster
+ * Copyright (C) 2008-2013 Florian octo Forster
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; only version 2 of the License is applicable.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Florian octo Forster <octo at verplant.org>
+ * Florian octo Forster <octo at collectd.org>
**/
#include "collectd.h"
/*
* Private variables
*/
-static const char *config_keys[] =
-{
- "DaemonAddress",
- "DataDir",
- "CreateFiles",
- "CollectStatistics"
-};
-static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
-
static char *datadir = NULL;
static char *daemon_address = NULL;
-static int config_create_files = 1;
-static int config_collect_stats = 1;
+static _Bool config_create_files = 1;
+static _Bool config_collect_stats = 1;
static rrdcreate_config_t rrdcreate_config =
{
/* stepsize = */ 0,
/* timespans_num = */ 0,
/* consolidation_functions = */ NULL,
- /* consolidation_functions_num = */ 0
+ /* consolidation_functions_num = */ 0,
+
+ /* async = */ 0
};
+/*
+ * Prototypes.
+ */
+static int rc_write (const data_set_t *ds, const value_list_t *vl,
+ user_data_t __attribute__((unused)) *user_data);
+static int rc_flush (__attribute__((unused)) cdtime_t timeout,
+ const char *identifier, __attribute__((unused)) user_data_t *ud);
+
static int value_list_to_string (char *buffer, int buffer_len,
const data_set_t *ds, const value_list_t *vl)
{
return (0);
} /* int value_list_to_string */
-static int value_list_to_filename (char *buffer, int buffer_len,
- const data_set_t *ds, const value_list_t *vl)
+static int value_list_to_filename (char *buffer, size_t buffer_size,
+ value_list_t const *vl)
{
- int offset = 0;
+ char const suffix[] = ".rrd";
int status;
-
- assert (0 == strcmp (ds->type, vl->type));
+ size_t len;
if (datadir != NULL)
{
- status = ssnprintf (buffer + offset, buffer_len - offset,
- "%s/", datadir);
- if ((status < 1) || (status >= buffer_len - offset))
- return (-1);
- offset += status;
- }
+ size_t datadir_len = strlen (datadir) + 1;
- status = ssnprintf (buffer + offset, buffer_len - offset,
- "%s/", vl->host);
- if ((status < 1) || (status >= buffer_len - offset))
- return (-1);
- offset += status;
+ if (datadir_len >= buffer_size)
+ return (ENOMEM);
- if (strlen (vl->plugin_instance) > 0)
- status = ssnprintf (buffer + offset, buffer_len - offset,
- "%s-%s/", vl->plugin, vl->plugin_instance);
- else
- status = ssnprintf (buffer + offset, buffer_len - offset,
- "%s/", vl->plugin);
- if ((status < 1) || (status >= buffer_len - offset))
- return (-1);
- offset += status;
+ sstrncpy (buffer, datadir, buffer_size);
+ buffer[datadir_len - 1] = '/';
+ buffer[datadir_len] = 0;
- if (strlen (vl->type_instance) > 0)
- status = ssnprintf (buffer + offset, buffer_len - offset,
- "%s-%s", vl->type, vl->type_instance);
- else
- status = ssnprintf (buffer + offset, buffer_len - offset,
- "%s", vl->type);
- if ((status < 1) || (status >= buffer_len - offset))
- return (-1);
- offset += status;
+ buffer += datadir_len;
+ buffer_size -= datadir_len;
+ }
- strncpy (buffer + offset, ".rrd", buffer_len - offset);
- buffer[buffer_len - 1] = 0;
+ status = FORMAT_VL (buffer, buffer_size, vl);
+ if (status != 0)
+ return (status);
+ len = strlen (buffer);
+ assert (len < buffer_size);
+ buffer += len;
+ buffer_size -= len;
+
+ if (buffer_size <= sizeof (suffix))
+ return (ENOMEM);
+
+ memcpy (buffer, suffix, sizeof (suffix));
return (0);
} /* int value_list_to_filename */
-static int rc_config (const char *key, const char *value)
+static int rc_config_get_int_positive (oconfig_item_t const *ci, int *ret)
+{
+ int status;
+ int tmp = 0;
+
+ status = cf_util_get_int (ci, &tmp);
+ if (status != 0)
+ return (status);
+ if (tmp < 0)
+ return (EINVAL);
+
+ *ret = tmp;
+ return (0);
+} /* int rc_config_get_int_positive */
+
+static int rc_config_get_xff (oconfig_item_t const *ci, double *ret)
+{
+ double value;
+
+ if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
+ {
+ ERROR ("rrdcached plugin: The \"%s\" needs exactly one numeric argument "
+ "in the range [0.0, 1.0)", ci->key);
+ return (EINVAL);
+ }
+
+ value = ci->values[0].value.number;
+ if ((value >= 0.0) && (value < 1.0))
+ {
+ *ret = value;
+ return (0);
+ }
+
+ ERROR ("rrdcached plugin: The \"%s\" needs exactly one numeric argument "
+ "in the range [0.0, 1.0)", ci->key);
+ return (EINVAL);
+} /* int rc_config_get_xff */
+
+static int rc_config_add_timespan (int timespan)
{
- if (strcasecmp ("DataDir", key) == 0)
+ int *tmp;
+
+ if (timespan <= 0)
+ return (EINVAL);
+
+ tmp = realloc (rrdcreate_config.timespans,
+ sizeof (*rrdcreate_config.timespans)
+ * (rrdcreate_config.timespans_num + 1));
+ if (tmp == NULL)
+ return (ENOMEM);
+ rrdcreate_config.timespans = tmp;
+
+ rrdcreate_config.timespans[rrdcreate_config.timespans_num] = timespan;
+ rrdcreate_config.timespans_num++;
+
+ return (0);
+} /* int rc_config_add_timespan */
+
+static int rc_config (oconfig_item_t *ci)
+{
+ int i;
+
+ for (i = 0; i < ci->children_num; i++)
{
- if (datadir != NULL)
- free (datadir);
- datadir = strdup (value);
- if (datadir != NULL)
+ oconfig_item_t const *child = ci->children + i;
+ const char *key = child->key;
+ int status = 0;
+
+ if (strcasecmp ("DataDir", key) == 0)
{
- int len = strlen (datadir);
- while ((len > 0) && (datadir[len - 1] == '/'))
+ status = cf_util_get_string (child, &datadir);
+ if (status == 0)
{
- len--;
- datadir[len] = '\0';
- }
- if (len <= 0)
- {
- free (datadir);
- datadir = NULL;
+ int len = strlen (datadir);
+
+ while ((len > 0) && (datadir[len - 1] == '/'))
+ {
+ len--;
+ datadir[len] = 0;
+ }
+
+ if (len <= 0)
+ sfree (datadir);
}
}
- }
- else if (strcasecmp ("DaemonAddress", key) == 0)
- {
- sfree (daemon_address);
- daemon_address = strdup (value);
- if (daemon_address == NULL)
+ else if (strcasecmp ("DaemonAddress", key) == 0)
+ status = cf_util_get_string (child, &daemon_address);
+ else if (strcasecmp ("CreateFiles", key) == 0)
+ status = cf_util_get_boolean (child, &config_create_files);
+ else if (strcasecmp ("CreateFilesAsync", key) == 0)
+ status = cf_util_get_boolean (child, &rrdcreate_config.async);
+ else if (strcasecmp ("CollectStatistics", key) == 0)
+ status = cf_util_get_boolean (child, &config_collect_stats);
+ else if (strcasecmp ("StepSize", key) == 0)
{
- ERROR ("rrdcached plugin: strdup failed.");
- return (1);
+ int tmp = -1;
+
+ status = rc_config_get_int_positive (child, &tmp);
+ if (status == 0)
+ rrdcreate_config.stepsize = (unsigned long) tmp;
}
- }
- else if (strcasecmp ("CreateFiles", key) == 0)
- {
- if (IS_FALSE (value))
- config_create_files = 0;
- else
- config_create_files = 1;
- }
- else if (strcasecmp ("CollectStatistics", key) == 0)
- {
- if (IS_FALSE (value))
- config_collect_stats = 0;
+ else if (strcasecmp ("HeartBeat", key) == 0)
+ status = rc_config_get_int_positive (child, &rrdcreate_config.heartbeat);
+ else if (strcasecmp ("RRARows", key) == 0)
+ status = rc_config_get_int_positive (child, &rrdcreate_config.rrarows);
+ else if (strcasecmp ("RRATimespan", key) == 0)
+ {
+ int tmp = -1;
+ status = rc_config_get_int_positive (child, &tmp);
+ if (status == 0)
+ status = rc_config_add_timespan (tmp);
+ }
+ else if (strcasecmp ("XFF", key) == 0)
+ status = rc_config_get_xff (child, &rrdcreate_config.xff);
else
- config_collect_stats = 1;
+ {
+ WARNING ("rrdcached plugin: Ignoring invalid option %s.", key);
+ continue;
+ }
+
+ if (status != 0)
+ WARNING ("rrdcached plugin: Handling the \"%s\" option failed.", key);
}
- else
+
+ if (daemon_address != NULL)
{
- return (-1);
+ plugin_register_write ("rrdcached", rc_write, /* user_data = */ NULL);
+ plugin_register_flush ("rrdcached", rc_flush, /* user_data = */ NULL);
}
return (0);
} /* int rc_config */
if (daemon_address == NULL)
return (-1);
- if (config_collect_stats == 0)
+ if (!config_collect_stats)
return (-1);
vl.values = values;
sstrncpy (vl.host, daemon_address, sizeof (vl.host));
sstrncpy (vl.plugin, "rrdcached", sizeof (vl.plugin));
+ status = rrdc_connect (daemon_address);
+ if (status != 0)
+ {
+ ERROR ("rrdcached plugin: rrdc_connect (%s) failed with status %i.",
+ daemon_address, status);
+ return (-1);
+ }
+
head = NULL;
status = rrdc_stats_get (&head);
if (status != 0)
static int rc_init (void)
{
- if (config_collect_stats != 0)
+ if (config_collect_stats)
plugin_register_read ("rrdcached", rc_read);
return (0);
return (-1);
}
- if (value_list_to_filename (filename, sizeof (filename), ds, vl) != 0)
+ if (value_list_to_filename (filename, sizeof (filename), vl) != 0)
{
ERROR ("rrdcached plugin: value_list_to_filename failed.");
return (-1);
values_array[0] = values;
values_array[1] = NULL;
- if (config_create_files != 0)
+ if (config_create_files)
{
struct stat statbuf;
filename);
return (-1);
}
+ else if (rrdcreate_config.async)
+ return (0);
}
}
void module_register (void)
{
- plugin_register_config ("rrdcached", rc_config,
- config_keys, config_keys_num);
+ plugin_register_complex_config ("rrdcached", rc_config);
plugin_register_init ("rrdcached", rc_init);
- plugin_register_write ("rrdcached", rc_write, /* user_data = */ NULL);
- plugin_register_flush ("rrdcached", rc_flush, /* user_data = */ NULL);
plugin_register_shutdown ("rrdcached", rc_shutdown);
} /* void module_register */
projects / collectd.git / blobdiff