+++ /dev/null
-/**
- * collectd - src/utils_threshold.c
- * Copyright (C) 2014 Pierre-Yves Ritschard
- *
- * 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:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * 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:
- * Pierre-Yves Ritschard <pyr at spootnik.org>
- **/
-
-#include "collectd.h"
-#include "common.h"
-#include "utils_avltree.h"
-#include "utils_threshold.h"
-
-#include <pthread.h>
-
-/*
- * Exported symbols
- * {{{ */
-c_avl_tree_t *threshold_tree = NULL;
-pthread_mutex_t threshold_lock = PTHREAD_MUTEX_INITIALIZER;
-/* }}} */
-
-/*
- * 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.
- */
-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 */
-
-/*
- * 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.
- */
-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 */
-
-int ut_search_threshold (const value_list_t *vl, /* {{{ */
- threshold_t *ret_threshold)
-{
- threshold_t *t;
-
- if (vl == NULL)
- return (EINVAL);
-
- /* Is this lock really necessary? */
- pthread_mutex_lock (&threshold_lock);
- t = threshold_search (vl);
- if (t == NULL) {
- pthread_mutex_unlock (&threshold_lock);
- return (ENOENT);
- }
-
- memcpy (ret_threshold, t, sizeof (*ret_threshold));
- pthread_mutex_unlock (&threshold_lock);
-
- ret_threshold->next = NULL;
-
- return (0);
-} /* }}} int ut_search_threshold */
-
-