+++ /dev/null
-/*
- * collectd - src/utils_tail_match.c
- * Copyright (C) 2007-2008 C-Ware, Inc.
- * Copyright (C) 2008 Florian Forster
- *
- * 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.
- *
- * Author:
- * Luke Heberling <lukeh at c-ware.com>
- * Florian Forster <octo at collectd.org>
- *
- * Description:
- * Encapsulates useful code to plugins which must parse a log file.
- */
-
-#include "collectd.h"
-
-#include "common.h"
-#include "plugin.h"
-#include "utils_latency_config.h"
-#include "utils_match.h"
-#include "utils_tail.h"
-#include "utils_tail_match.h"
-
-struct cu_tail_match_simple_s {
- 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];
- cdtime_t interval;
- latency_config_t latency_config;
-};
-typedef struct cu_tail_match_simple_s cu_tail_match_simple_t;
-
-struct cu_tail_match_match_s {
- cu_match_t *match;
- void *user_data;
- int (*submit)(cu_match_t *match, void *user_data);
- void (*free)(void *user_data);
-};
-typedef struct cu_tail_match_match_s cu_tail_match_match_t;
-
-struct cu_tail_match_s {
- int flags;
- cu_tail_t *tail;
-
- cdtime_t interval;
- cu_tail_match_match_t *matches;
- size_t matches_num;
-};
-
-/*
- * Private functions
- */
-static int simple_submit_match(cu_match_t *match, void *user_data) {
- cu_tail_match_simple_t *data = (cu_tail_match_simple_t *)user_data;
- cu_match_value_t *match_value;
- value_list_t vl = VALUE_LIST_INIT;
- value_t values[1];
-
- match_value = (cu_match_value_t *)match_get_user_data(match);
- if (match_value == NULL)
- return (-1);
-
- if ((match_value->ds_type & UTILS_MATCH_DS_TYPE_GAUGE) &&
- (match_value->values_num == 0))
- values[0].gauge = NAN;
- else
- values[0] = match_value->value;
-
- vl.values = values;
- vl.values_len = 1;
- sstrncpy(vl.plugin, data->plugin, sizeof(vl.plugin));
- sstrncpy(vl.plugin_instance, data->plugin_instance,
- sizeof(vl.plugin_instance));
- sstrncpy(vl.type, data->type, sizeof(vl.type));
- sstrncpy(vl.type_instance, data->type_instance, sizeof(vl.type_instance));
-
- vl.interval = data->interval;
- plugin_dispatch_values(&vl);
-
- match_value_reset(match_value);
- return (0);
-} /* int simple_submit_match */
-
-static int latency_submit_match(cu_match_t *match, void *user_data) {
- cu_tail_match_simple_t *data = (cu_tail_match_simple_t *)user_data;
- cu_match_value_t *match_value;
- value_list_t vl = VALUE_LIST_INIT;
-
- match_value = (cu_match_value_t *)match_get_user_data(match);
- if (match_value == NULL)
- return (-1);
-
- sstrncpy(vl.host, hostname_g, sizeof(vl.host));
- sstrncpy(vl.plugin, data->plugin, sizeof(vl.plugin));
- sstrncpy(vl.plugin_instance, data->plugin_instance,
- sizeof(vl.plugin_instance));
- vl.interval = data->interval;
- vl.time = cdtime();
-
- /* Submit percentiles */
- sstrncpy(vl.type, data->type, sizeof(vl.type));
- for (size_t i = 0; i < data->latency_config.percentile_num; i++) {
- if (strlen(data->type_instance) != 0)
- ssnprintf(vl.type_instance, sizeof(vl.type_instance), "%s-%.0f",
- data->type_instance, data->latency_config.percentile[i]);
- else
- ssnprintf(vl.type_instance, sizeof(vl.type_instance), "%.0f",
- data->latency_config.percentile[i]);
-
- vl.values = &(value_t){
- .gauge =
- (match_value->values_num != 0)
- ? CDTIME_T_TO_DOUBLE(latency_counter_get_percentile(
- match_value->latency, data->latency_config.percentile[i]))
- : NAN,
- };
- vl.values_len = 1;
-
- plugin_dispatch_values(&vl);
- }
-
- /* Submit buckets */
- sstrncpy(vl.type, "bucket", sizeof(vl.type));
- for (size_t i = 0; i < data->latency_config.buckets_num; i++) {
- latency_bucket_t bucket = data->latency_config.buckets[i];
-
- double lower_bound = CDTIME_T_TO_DOUBLE(bucket.lower_bound);
- double upper_bound =
- bucket.upper_bound ? CDTIME_T_TO_DOUBLE(bucket.upper_bound) : INFINITY;
-
- if (strlen(data->type_instance) != 0)
- ssnprintf(vl.type_instance, sizeof(vl.type_instance), "%s-%s-%g_%g",
- data->type, data->type_instance, lower_bound, upper_bound);
- else
- ssnprintf(vl.type_instance, sizeof(vl.type_instance), "%s-%g_%g",
- data->type, lower_bound, upper_bound);
-
- vl.values = &(value_t){
- .gauge =
- latency_counter_get_rate(match_value->latency, bucket.lower_bound,
- bucket.upper_bound, vl.time),
- };
- vl.values_len = 1;
-
- plugin_dispatch_values(&vl);
- }
-
- match_value->value.gauge = NAN;
- match_value->values_num = 0;
- latency_counter_reset(match_value->latency);
-
- return (0);
-} /* int latency_submit_match */
-
-static int tail_callback(void *data, char *buf,
- int __attribute__((unused)) buflen) {
- cu_tail_match_t *obj = (cu_tail_match_t *)data;
-
- for (size_t i = 0; i < obj->matches_num; i++)
- match_apply(obj->matches[i].match, buf);
-
- return (0);
-} /* int tail_callback */
-
-static void tail_match_simple_free(void *data) {
- cu_tail_match_simple_t *user_data = (cu_tail_match_simple_t *)data;
- latency_config_free(user_data->latency_config);
- sfree(user_data);
-} /* void tail_match_simple_free */
-
-/*
- * Public functions
- */
-cu_tail_match_t *tail_match_create(const char *filename) {
- cu_tail_match_t *obj;
-
- obj = calloc(1, sizeof(*obj));
- if (obj == NULL)
- return (NULL);
-
- obj->tail = cu_tail_create(filename);
- if (obj->tail == NULL) {
- sfree(obj);
- return (NULL);
- }
-
- return (obj);
-} /* cu_tail_match_t *tail_match_create */
-
-void tail_match_destroy(cu_tail_match_t *obj) {
- if (obj == NULL)
- return;
-
- if (obj->tail != NULL) {
- cu_tail_destroy(obj->tail);
- obj->tail = NULL;
- }
-
- for (size_t i = 0; i < obj->matches_num; i++) {
- cu_tail_match_match_t *match = obj->matches + i;
- if (match->match != NULL) {
- match_destroy(match->match);
- match->match = NULL;
- }
-
- if ((match->user_data != NULL) && (match->free != NULL))
- (*match->free)(match->user_data);
- match->user_data = NULL;
- }
-
- sfree(obj->matches);
- sfree(obj);
-} /* void tail_match_destroy */
-
-int tail_match_add_match(cu_tail_match_t *obj, cu_match_t *match,
- int (*submit_match)(cu_match_t *match,
- void *user_data),
- void *user_data,
- void (*free_user_data)(void *user_data)) {
- cu_tail_match_match_t *temp;
-
- temp = realloc(obj->matches,
- sizeof(cu_tail_match_match_t) * (obj->matches_num + 1));
- if (temp == NULL)
- return (-1);
-
- obj->matches = temp;
- obj->matches_num++;
-
- DEBUG("tail_match_add_match interval %lf",
- CDTIME_T_TO_DOUBLE(((cu_tail_match_simple_t *)user_data)->interval));
- temp = obj->matches + (obj->matches_num - 1);
-
- temp->match = match;
- temp->user_data = user_data;
- temp->submit = submit_match;
- temp->free = free_user_data;
-
- return (0);
-} /* int tail_match_add_match */
-
-int tail_match_add_match_simple(cu_tail_match_t *obj, const char *regex,
- const char *excluderegex, int ds_type,
- const char *plugin, const char *plugin_instance,
- const char *type, const char *type_instance,
- const latency_config_t latency_cfg,
- const cdtime_t interval) {
- cu_match_t *match;
- cu_tail_match_simple_t *user_data;
- int status;
-
- match = match_create_simple(regex, excluderegex, ds_type);
- if (match == NULL)
- return (-1);
-
- user_data = calloc(1, sizeof(*user_data));
- if (user_data == NULL) {
- match_destroy(match);
- return (-1);
- }
-
- sstrncpy(user_data->plugin, plugin, sizeof(user_data->plugin));
- if (plugin_instance != NULL)
- sstrncpy(user_data->plugin_instance, plugin_instance,
- sizeof(user_data->plugin_instance));
-
- sstrncpy(user_data->type, type, sizeof(user_data->type));
- if (type_instance != NULL)
- sstrncpy(user_data->type_instance, type_instance,
- sizeof(user_data->type_instance));
-
- user_data->interval = interval;
-
- if ((ds_type & UTILS_MATCH_DS_TYPE_GAUGE) &&
- (ds_type & UTILS_MATCH_CF_GAUGE_DIST)) {
- status = latency_config_copy(&user_data->latency_config, latency_cfg);
- if (status != 0) {
- ERROR("tail_match_add_match_simple: latency_config_copy() failed.");
- status = -1;
- goto out;
- }
-
- status = tail_match_add_match(obj, match, latency_submit_match, user_data,
- tail_match_simple_free);
- } else {
- status =
- tail_match_add_match(obj, match, simple_submit_match, user_data, free);
- }
-
-out:
- if (status != 0) {
- tail_match_simple_free(user_data);
- match_destroy(match);
- }
-
- return (status);
-} /* int tail_match_add_match_simple */
-
-int tail_match_read(cu_tail_match_t *obj) {
- char buffer[4096];
- int status;
-
- status = cu_tail_read(obj->tail, buffer, sizeof(buffer), tail_callback,
- (void *)obj);
- if (status != 0) {
- ERROR("tail_match: cu_tail_read failed.");
- return (status);
- }
-
- for (size_t i = 0; i < obj->matches_num; i++) {
- cu_tail_match_match_t *lt_match = obj->matches + i;
-
- if (lt_match->submit == NULL)
- continue;
-
- (*lt_match->submit)(lt_match->match, lt_match->user_data);
- }
-
- return (0);
-} /* int tail_match_read */
-
-/* vim: set sw=2 sts=2 ts=8 : */
projects / collectd.git / blobdiff