X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fwrite_riemann_threshold.c;h=6d5af032565b909f8448811cc0aa8dc6167265d9;hb=f2daf5deea1d50dbb834cffa0c8106b5456c9d82;hp=86367747497b9544b560018b5f12b132250f86c6;hpb=01f0c5cdad33f63e079b468481d79a05d7323be0;p=collectd.git diff --git a/src/write_riemann_threshold.c b/src/write_riemann_threshold.c index 86367747..6d5af032 100644 --- a/src/write_riemann_threshold.c +++ b/src/write_riemann_threshold.c @@ -3,6 +3,7 @@ * Copyright (C) 2007-2010 Florian Forster * Copyright (C) 2008-2009 Sebastian Harl * Copyright (C) 2009 Andrés J. Díaz + * Copyright (C) 2014 Pierre-Yves Ritschard * * 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 @@ -18,6 +19,7 @@ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * Author: + * Pierre-Yves Ritschard * Florian octo Forster * Sebastian Harl * Andrés J. Díaz @@ -28,686 +30,18 @@ #include "plugin.h" #include "utils_avltree.h" #include "utils_cache.h" +#include "utils_threshold.h" #include +#include #include /* - * Private data structures - * {{{ */ -#define UT_FLAG_INVERT 0x01 -#define UT_FLAG_PERSIST 0x02 -#define UT_FLAG_PERCENTAGE 0x04 -#define UT_FLAG_INTERESTING 0x08 -#define UT_FLAG_PERSIST_OK 0x10 -typedef struct threshold_s -{ - char host[DATA_MAX_NAME_LEN]; - char plugin[DATA_MAX_NAME_LEN]; - char plugin_instance[DATA_MAX_NAME_LEN]; - char type[DATA_MAX_NAME_LEN]; - char type_instance[DATA_MAX_NAME_LEN]; - char data_source[DATA_MAX_NAME_LEN]; - gauge_t warning_min; - gauge_t warning_max; - gauge_t failure_min; - gauge_t failure_max; - gauge_t hysteresis; - unsigned int flags; - int hits; - struct threshold_s *next; -} threshold_t; -/* }}} */ - -/* - * Private (static) variables - * {{{ */ -static c_avl_tree_t *threshold_tree = NULL; -static pthread_mutex_t threshold_lock = PTHREAD_MUTEX_INITIALIZER; -/* }}} */ - -/* * Threshold management * ==================== - * The following functions add, delete, search, etc. configured thresholds to + * The following functions add, delete, etc. configured thresholds to * the underlying AVL trees. */ -/* - * threshold_t *threshold_get - * - * Retrieve one specific threshold configuration. For looking up a threshold - * matching a value_list_t, see "threshold_search" below. Returns NULL if the - * specified threshold doesn't exist. - */ -static threshold_t *threshold_get (const char *hostname, - const char *plugin, const char *plugin_instance, - const char *type, const char *type_instance) -{ /* {{{ */ - char name[6 * DATA_MAX_NAME_LEN]; - threshold_t *th = NULL; - - format_name (name, sizeof (name), - (hostname == NULL) ? "" : hostname, - (plugin == NULL) ? "" : plugin, plugin_instance, - (type == NULL) ? "" : type, type_instance); - name[sizeof (name) - 1] = '\0'; - - if (c_avl_get (threshold_tree, name, (void *) &th) == 0) - return (th); - else - return (NULL); -} /* }}} threshold_t *threshold_get */ - -/* - * int ut_threshold_add - * - * Adds a threshold configuration to the list of thresholds. The threshold_t - * structure is copied and may be destroyed after this call. Returns zero on - * success, non-zero otherwise. - */ -static int ut_threshold_add (const threshold_t *th) -{ /* {{{ */ - char name[6 * DATA_MAX_NAME_LEN]; - char *name_copy; - threshold_t *th_copy; - threshold_t *th_ptr; - int status = 0; - - if (format_name (name, sizeof (name), th->host, - th->plugin, th->plugin_instance, - th->type, th->type_instance) != 0) - { - ERROR ("ut_threshold_add: format_name failed."); - return (-1); - } - - name_copy = strdup (name); - if (name_copy == NULL) - { - ERROR ("ut_threshold_add: strdup failed."); - return (-1); - } - - th_copy = (threshold_t *) malloc (sizeof (threshold_t)); - if (th_copy == NULL) - { - sfree (name_copy); - ERROR ("ut_threshold_add: malloc failed."); - return (-1); - } - memcpy (th_copy, th, sizeof (threshold_t)); - th_ptr = NULL; - - DEBUG ("ut_threshold_add: Adding entry `%s'", name); - - pthread_mutex_lock (&threshold_lock); - - th_ptr = threshold_get (th->host, th->plugin, th->plugin_instance, - th->type, th->type_instance); - - while ((th_ptr != NULL) && (th_ptr->next != NULL)) - th_ptr = th_ptr->next; - - if (th_ptr == NULL) /* no such threshold yet */ - { - status = c_avl_insert (threshold_tree, name_copy, th_copy); - } - else /* th_ptr points to the last threshold in the list */ - { - th_ptr->next = th_copy; - /* name_copy isn't needed */ - sfree (name_copy); - } - - pthread_mutex_unlock (&threshold_lock); - - if (status != 0) - { - ERROR ("ut_threshold_add: c_avl_insert (%s) failed.", name); - sfree (name_copy); - sfree (th_copy); - } - - return (status); -} /* }}} int ut_threshold_add */ - -/* - * threshold_t *threshold_search - * - * Searches for a threshold configuration using all the possible variations of - * "Host", "Plugin" and "Type" blocks. Returns NULL if no threshold could be - * found. - * XXX: This is likely the least efficient function in collectd. - */ -static threshold_t *threshold_search (const value_list_t *vl) -{ /* {{{ */ - threshold_t *th; - - if ((th = threshold_get (vl->host, vl->plugin, vl->plugin_instance, - vl->type, vl->type_instance)) != NULL) - return (th); - else if ((th = threshold_get (vl->host, vl->plugin, vl->plugin_instance, - vl->type, NULL)) != NULL) - return (th); - else if ((th = threshold_get (vl->host, vl->plugin, NULL, - vl->type, vl->type_instance)) != NULL) - return (th); - else if ((th = threshold_get (vl->host, vl->plugin, NULL, - vl->type, NULL)) != NULL) - return (th); - else if ((th = threshold_get (vl->host, "", NULL, - vl->type, vl->type_instance)) != NULL) - return (th); - else if ((th = threshold_get (vl->host, "", NULL, - vl->type, NULL)) != NULL) - return (th); - else if ((th = threshold_get ("", vl->plugin, vl->plugin_instance, - vl->type, vl->type_instance)) != NULL) - return (th); - else if ((th = threshold_get ("", vl->plugin, vl->plugin_instance, - vl->type, NULL)) != NULL) - return (th); - else if ((th = threshold_get ("", vl->plugin, NULL, - vl->type, vl->type_instance)) != NULL) - return (th); - else if ((th = threshold_get ("", vl->plugin, NULL, - vl->type, NULL)) != NULL) - return (th); - else if ((th = threshold_get ("", "", NULL, - vl->type, vl->type_instance)) != NULL) - return (th); - else if ((th = threshold_get ("", "", NULL, - vl->type, NULL)) != NULL) - return (th); - - return (NULL); -} /* }}} threshold_t *threshold_search */ - -/* - * Configuration - * ============= - * The following approximately two hundred functions are used to handle the - * configuration and fill the threshold list. - * {{{ */ -static int ut_config_type_datasource (threshold_t *th, oconfig_item_t *ci) -{ - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_STRING)) - { - WARNING ("threshold values: The `DataSource' option needs exactly one " - "string argument."); - return (-1); - } - - sstrncpy (th->data_source, ci->values[0].value.string, - sizeof (th->data_source)); - - return (0); -} /* int ut_config_type_datasource */ - -static int ut_config_type_instance (threshold_t *th, oconfig_item_t *ci) -{ - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_STRING)) - { - WARNING ("threshold values: The `Instance' option needs exactly one " - "string argument."); - return (-1); - } - - sstrncpy (th->type_instance, ci->values[0].value.string, - sizeof (th->type_instance)); - - return (0); -} /* int ut_config_type_instance */ - -static int ut_config_type_max (threshold_t *th, oconfig_item_t *ci) -{ - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_NUMBER)) - { - WARNING ("threshold values: The `%s' option needs exactly one " - "number argument.", ci->key); - return (-1); - } - - if (strcasecmp (ci->key, "WarningMax") == 0) - th->warning_max = ci->values[0].value.number; - else - th->failure_max = ci->values[0].value.number; - - return (0); -} /* int ut_config_type_max */ - -static int ut_config_type_min (threshold_t *th, oconfig_item_t *ci) -{ - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_NUMBER)) - { - WARNING ("threshold values: The `%s' option needs exactly one " - "number argument.", ci->key); - return (-1); - } - - if (strcasecmp (ci->key, "WarningMin") == 0) - th->warning_min = ci->values[0].value.number; - else - th->failure_min = ci->values[0].value.number; - - return (0); -} /* int ut_config_type_min */ - -static int ut_config_type_hits (threshold_t *th, oconfig_item_t *ci) -{ - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_NUMBER)) - { - WARNING ("threshold values: The `%s' option needs exactly one " - "number argument.", ci->key); - return (-1); - } - - th->hits = ci->values[0].value.number; - - return (0); -} /* int ut_config_type_hits */ - -static int ut_config_type_hysteresis (threshold_t *th, oconfig_item_t *ci) -{ - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_NUMBER)) - { - WARNING ("threshold values: The `%s' option needs exactly one " - "number argument.", ci->key); - return (-1); - } - - th->hysteresis = ci->values[0].value.number; - - return (0); -} /* int ut_config_type_hysteresis */ - -static int ut_config_type (const threshold_t *th_orig, oconfig_item_t *ci) -{ - int i; - threshold_t th; - int status = 0; - - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_STRING)) - { - WARNING ("threshold values: The `Type' block needs exactly one string " - "argument."); - return (-1); - } - - if (ci->children_num < 1) - { - WARNING ("threshold values: The `Type' block needs at least one option."); - return (-1); - } - - memcpy (&th, th_orig, sizeof (th)); - sstrncpy (th.type, ci->values[0].value.string, sizeof (th.type)); - - th.warning_min = NAN; - th.warning_max = NAN; - th.failure_min = NAN; - th.failure_max = NAN; - th.hits = 0; - th.hysteresis = 0; - th.flags = UT_FLAG_INTERESTING; /* interesting by default */ - - for (i = 0; i < ci->children_num; i++) - { - oconfig_item_t *option = ci->children + i; - status = 0; - - if (strcasecmp ("Instance", option->key) == 0) - status = ut_config_type_instance (&th, option); - else if (strcasecmp ("DataSource", option->key) == 0) - status = ut_config_type_datasource (&th, option); - else if ((strcasecmp ("WarningMax", option->key) == 0) - || (strcasecmp ("FailureMax", option->key) == 0)) - status = ut_config_type_max (&th, option); - else if ((strcasecmp ("WarningMin", option->key) == 0) - || (strcasecmp ("FailureMin", option->key) == 0)) - status = ut_config_type_min (&th, option); - else if (strcasecmp ("Interesting", option->key) == 0) - status = cf_util_get_flag (option, &th.flags, UT_FLAG_INTERESTING); - else if (strcasecmp ("Invert", option->key) == 0) - status = cf_util_get_flag (option, &th.flags, UT_FLAG_INVERT); - else if (strcasecmp ("Persist", option->key) == 0) - status = cf_util_get_flag (option, &th.flags, UT_FLAG_PERSIST); - else if (strcasecmp ("PersistOK", option->key) == 0) - status = cf_util_get_flag (option, &th.flags, UT_FLAG_PERSIST_OK); - else if (strcasecmp ("Percentage", option->key) == 0) - status = cf_util_get_flag (option, &th.flags, UT_FLAG_PERCENTAGE); - else if (strcasecmp ("Hits", option->key) == 0) - status = ut_config_type_hits (&th, option); - else if (strcasecmp ("Hysteresis", option->key) == 0) - status = ut_config_type_hysteresis (&th, option); - else - { - WARNING ("threshold values: Option `%s' not allowed inside a `Type' " - "block.", option->key); - status = -1; - } - - if (status != 0) - break; - } - - if (status == 0) - { - status = ut_threshold_add (&th); - } - - return (status); -} /* int ut_config_type */ - -static int ut_config_plugin_instance (threshold_t *th, oconfig_item_t *ci) -{ - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_STRING)) - { - WARNING ("threshold values: The `Instance' option needs exactly one " - "string argument."); - return (-1); - } - - sstrncpy (th->plugin_instance, ci->values[0].value.string, - sizeof (th->plugin_instance)); - - return (0); -} /* int ut_config_plugin_instance */ - -static int ut_config_plugin (const threshold_t *th_orig, oconfig_item_t *ci) -{ - int i; - threshold_t th; - int status = 0; - - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_STRING)) - { - WARNING ("threshold values: The `Plugin' block needs exactly one string " - "argument."); - return (-1); - } - - if (ci->children_num < 1) - { - WARNING ("threshold values: The `Plugin' block needs at least one nested " - "block."); - return (-1); - } - - memcpy (&th, th_orig, sizeof (th)); - sstrncpy (th.plugin, ci->values[0].value.string, sizeof (th.plugin)); - - for (i = 0; i < ci->children_num; i++) - { - oconfig_item_t *option = ci->children + i; - status = 0; - - if (strcasecmp ("Type", option->key) == 0) - status = ut_config_type (&th, option); - else if (strcasecmp ("Instance", option->key) == 0) - status = ut_config_plugin_instance (&th, option); - else - { - WARNING ("threshold values: Option `%s' not allowed inside a `Plugin' " - "block.", option->key); - status = -1; - } - - if (status != 0) - break; - } - - return (status); -} /* int ut_config_plugin */ - -static int ut_config_host (const threshold_t *th_orig, oconfig_item_t *ci) -{ - int i; - threshold_t th; - int status = 0; - - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_STRING)) - { - WARNING ("threshold values: The `Host' block needs exactly one string " - "argument."); - return (-1); - } - - if (ci->children_num < 1) - { - WARNING ("threshold values: The `Host' block needs at least one nested " - "block."); - return (-1); - } - - memcpy (&th, th_orig, sizeof (th)); - sstrncpy (th.host, ci->values[0].value.string, sizeof (th.host)); - - for (i = 0; i < ci->children_num; i++) - { - oconfig_item_t *option = ci->children + i; - status = 0; - - if (strcasecmp ("Type", option->key) == 0) - status = ut_config_type (&th, option); - else if (strcasecmp ("Plugin", option->key) == 0) - status = ut_config_plugin (&th, option); - else - { - WARNING ("threshold values: Option `%s' not allowed inside a `Host' " - "block.", option->key); - status = -1; - } - - if (status != 0) - break; - } - - return (status); -} /* int ut_config_host */ -/* - * End of the functions used to configure threshold values. - */ -/* }}} */ - -/* - * int ut_report_state - * - * Checks if the `state' differs from the old state and creates a notification - * if appropriate. - * Does not fail. - */ -static int ut_report_state (const data_set_t *ds, - const value_list_t *vl, - const threshold_t *th, - const gauge_t *values, - int ds_index, - int state) -{ /* {{{ */ - int state_old; - notification_t n; - - char *buf; - size_t bufsize; - - int status; - - /* Check if hits matched */ - if ( (th->hits != 0) ) - { - int hits = uc_get_hits(ds,vl); - /* STATE_OKAY resets hits unless PERSIST_OK flag is set. Hits resets if - * threshold is hit. */ - if ( ( (state == STATE_OKAY) && ((th->flags & UT_FLAG_PERSIST_OK) == 0) ) || (hits > th->hits) ) - { - DEBUG("ut_report_state: reset uc_get_hits = 0"); - uc_set_hits(ds,vl,0); /* reset hit counter and notify */ - } else { - DEBUG("ut_report_state: th->hits = %d, uc_get_hits = %d",th->hits,uc_get_hits(ds,vl)); - (void) uc_inc_hits(ds,vl,1); /* increase hit counter */ - return (0); - } - } /* end check hits */ - - state_old = uc_get_state (ds, vl); - - /* If the state didn't change, report if `persistent' is specified. If the - * state is `okay', then only report if `persist_ok` flag is set. */ - if (state == state_old) - { - if ((th->flags & UT_FLAG_PERSIST) == 0) - return (0); - else if ( (state == STATE_OKAY) && ((th->flags & UT_FLAG_PERSIST_OK) == 0) ) - return (0); - } - - if (state != state_old) - uc_set_state (ds, vl, state); - - NOTIFICATION_INIT_VL (&n, vl); - - buf = n.message; - bufsize = sizeof (n.message); - - if (state == STATE_OKAY) - n.severity = NOTIF_OKAY; - else if (state == STATE_WARNING) - n.severity = NOTIF_WARNING; - else - n.severity = NOTIF_FAILURE; - - n.time = vl->time; - - status = ssnprintf (buf, bufsize, "Host %s, plugin %s", - vl->host, vl->plugin); - buf += status; - bufsize -= status; - - if (vl->plugin_instance[0] != '\0') - { - status = ssnprintf (buf, bufsize, " (instance %s)", - vl->plugin_instance); - buf += status; - bufsize -= status; - } - - status = ssnprintf (buf, bufsize, " type %s", vl->type); - buf += status; - bufsize -= status; - - if (vl->type_instance[0] != '\0') - { - status = ssnprintf (buf, bufsize, " (instance %s)", - vl->type_instance); - buf += status; - bufsize -= status; - } - - plugin_notification_meta_add_string (&n, "DataSource", - ds->ds[ds_index].name); - plugin_notification_meta_add_double (&n, "CurrentValue", values[ds_index]); - plugin_notification_meta_add_double (&n, "WarningMin", th->warning_min); - plugin_notification_meta_add_double (&n, "WarningMax", th->warning_max); - plugin_notification_meta_add_double (&n, "FailureMin", th->failure_min); - plugin_notification_meta_add_double (&n, "FailureMax", th->failure_max); - - /* Send an okay notification */ - if (state == STATE_OKAY) - { - if (state_old == STATE_MISSING) - status = ssnprintf (buf, bufsize, - ": Value is no longer missing."); - else - status = ssnprintf (buf, bufsize, - ": All data sources are within range again."); - buf += status; - bufsize -= status; - } - else - { - double min; - double max; - - min = (state == STATE_ERROR) ? th->failure_min : th->warning_min; - max = (state == STATE_ERROR) ? th->failure_max : th->warning_max; - - if (th->flags & UT_FLAG_INVERT) - { - if (!isnan (min) && !isnan (max)) - { - status = ssnprintf (buf, bufsize, ": Data source \"%s\" is currently " - "%f. That is within the %s region of %f%s and %f%s.", - ds->ds[ds_index].name, values[ds_index], - (state == STATE_ERROR) ? "failure" : "warning", - min, ((th->flags & UT_FLAG_PERCENTAGE) != 0) ? "%" : "", - max, ((th->flags & UT_FLAG_PERCENTAGE) != 0) ? "%" : ""); - } - else - { - status = ssnprintf (buf, bufsize, ": Data source \"%s\" is currently " - "%f. That is %s the %s threshold of %f%s.", - ds->ds[ds_index].name, values[ds_index], - isnan (min) ? "below" : "above", - (state == STATE_ERROR) ? "failure" : "warning", - isnan (min) ? max : min, - ((th->flags & UT_FLAG_PERCENTAGE) != 0) ? "%" : ""); - } - } - else if (th->flags & UT_FLAG_PERCENTAGE) - { - gauge_t value; - gauge_t sum; - int i; - - sum = 0.0; - for (i = 0; i < vl->values_len; i++) - { - if (isnan (values[i])) - continue; - - sum += values[i]; - } - - if (sum == 0.0) - value = NAN; - else - value = 100.0 * values[ds_index] / sum; - - status = ssnprintf (buf, bufsize, ": Data source \"%s\" is currently " - "%g (%.2f%%). That is %s the %s threshold of %.2f%%.", - ds->ds[ds_index].name, values[ds_index], value, - (value < min) ? "below" : "above", - (state == STATE_ERROR) ? "failure" : "warning", - (value < min) ? min : max); - } - else /* is not inverted */ - { - status = ssnprintf (buf, bufsize, ": Data source \"%s\" is currently " - "%f. That is %s the %s threshold of %f.", - ds->ds[ds_index].name, values[ds_index], - (values[ds_index] < min) ? "below" : "above", - (state == STATE_ERROR) ? "failure" : "warning", - (values[ds_index] < min) ? min : max); - } - buf += status; - bufsize -= status; - } - - plugin_dispatch_notification (&n); - - plugin_notification_meta_free (n.meta); - return (0); -} /* }}} int ut_report_state */ /* * int ut_check_one_data_source @@ -796,11 +130,11 @@ static int ut_check_one_threshold (const data_set_t *ds, const value_list_t *vl, const threshold_t *th, const gauge_t *values, - int *ret_ds_index) + int *statuses) { /* {{{ */ int ret = -1; - int ds_index = -1; int i; + int status; gauge_t values_copy[ds->ds_num]; memcpy (values_copy, values, sizeof (values_copy)); @@ -841,19 +175,14 @@ static int ut_check_one_threshold (const data_set_t *ds, for (i = 0; i < ds->ds_num; i++) { - int status; - status = ut_check_one_data_source (ds, vl, th, values_copy, i); - if (ret < status) - { - ret = status; - ds_index = i; + if (status != -1) { + ret = 0; + if (statuses[i] < status) + statuses[i] = status; } } /* for (ds->ds_num) */ - if (ret_ds_index != NULL) - *ret_ds_index = ds_index; - return (ret); } /* }}} int ut_check_one_threshold */ @@ -862,23 +191,20 @@ static int ut_check_one_threshold (const data_set_t *ds, * * Gets a list of matching thresholds and searches for the worst status by one * of the thresholds. Then reports that status using the ut_report_state - * function above. + * function above. * Returns zero on success and if no threshold has been configured. Returns * less than zero on failure. */ -static int ut_check_threshold (const data_set_t *ds, const value_list_t *vl, - __attribute__((unused)) user_data_t *ud) +int write_riemann_threshold_check (const data_set_t *ds, const value_list_t *vl, + int *statuses) { /* {{{ */ threshold_t *th; gauge_t *values; int status; - int worst_state = -1; - threshold_t *worst_th = NULL; - int worst_ds_index = -1; - + memset(statuses, 0, vl->values_len * sizeof(*statuses)); if (threshold_tree == NULL) - return (0); + return 0; /* Is this lock really necessary? So far, thresholds are only inserted at * startup. -octo */ @@ -886,19 +212,17 @@ static int ut_check_threshold (const data_set_t *ds, const value_list_t *vl, th = threshold_search (vl); pthread_mutex_unlock (&threshold_lock); if (th == NULL) - return (0); + return (0); DEBUG ("ut_check_threshold: Found matching threshold(s)"); values = uc_get_rate (ds, vl); if (values == NULL) - return (0); + return (0); while (th != NULL) { - int ds_index = -1; - - status = ut_check_one_threshold (ds, vl, th, values, &ds_index); + status = ut_check_one_threshold (ds, vl, th, values, statuses); if (status < 0) { ERROR ("ut_check_threshold: ut_check_one_threshold failed."); @@ -906,120 +230,13 @@ static int ut_check_threshold (const data_set_t *ds, const value_list_t *vl, return (-1); } - if (worst_state < status) - { - worst_state = status; - worst_th = th; - worst_ds_index = ds_index; - } - th = th->next; } /* while (th) */ - status = ut_report_state (ds, vl, worst_th, values, - worst_ds_index, worst_state); - if (status != 0) - { - ERROR ("ut_check_threshold: ut_report_state failed."); - sfree (values); - return (-1); - } - sfree (values); return (0); } /* }}} int ut_check_threshold */ -/* - * int ut_missing - * - * This function is called whenever a value goes "missing". - */ -static int ut_missing (const value_list_t *vl, - __attribute__((unused)) user_data_t *ud) -{ /* {{{ */ - threshold_t *th; - cdtime_t missing_time; - char identifier[6 * DATA_MAX_NAME_LEN]; - notification_t n; - - if (threshold_tree == NULL) - return (0); - - th = threshold_search (vl); - /* dispatch notifications for "interesting" values only */ - if ((th == NULL) || ((th->flags & UT_FLAG_INTERESTING) == 0)) - return (0); - - missing_time = cdtime () - vl->time; - FORMAT_VL (identifier, sizeof (identifier), vl); - - NOTIFICATION_INIT_VL (&n, vl); - ssnprintf (n.message, sizeof (n.message), - "%s has not been updated for %.3f seconds.", - identifier, CDTIME_T_TO_DOUBLE (missing_time)); - - plugin_dispatch_notification (&n); - - return (0); -} /* }}} int ut_missing */ - -int write_riemann_threshold_config (oconfig_item_t *ci) -{ /* {{{ */ - int i; - int status = 0; - - threshold_t th; - - if (threshold_tree == NULL) - { - threshold_tree = c_avl_create ((void *) strcmp); - if (threshold_tree == NULL) - { - ERROR ("ut_config: c_avl_create failed."); - return (-1); - } - } - - memset (&th, '\0', sizeof (th)); - th.warning_min = NAN; - th.warning_max = NAN; - th.failure_min = NAN; - th.failure_max = NAN; - - th.hits = 0; - th.hysteresis = 0; - th.flags = UT_FLAG_INTERESTING; /* interesting by default */ - - for (i = 0; i < ci->children_num; i++) - { - oconfig_item_t *option = ci->children + i; - status = 0; - - if (strcasecmp ("Type", option->key) == 0) - status = ut_config_type (&th, option); - else if (strcasecmp ("Plugin", option->key) == 0) - status = ut_config_plugin (&th, option); - else if (strcasecmp ("Host", option->key) == 0) - status = ut_config_host (&th, option); - else - { - WARNING ("threshold values: Option `%s' not allowed here.", option->key); - status = -1; - } - - if (status != 0) - break; - } - - if (c_avl_size (threshold_tree) > 0) { - plugin_register_missing ("threshold", ut_missing, - /* user data = */ NULL); - plugin_register_write ("threshold", ut_check_threshold, - /* user data = */ NULL); - } - - return (status); -} /* }}} int um_config */ /* vim: set sw=2 ts=8 sts=2 tw=78 et fdm=marker : */