+++ /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_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;
-};
-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.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));
- 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);
-
- if (match_value->ds_type & UTILS_MATCH_DS_TYPE_GAUGE)
- {
- match_value->value.gauge = NAN;
- match_value->values_num = 0;
- }
-
- return (0);
-} /* int simple_submit_match */
-
-static int tail_callback (void *data, char *buf,
- int __attribute__((unused)) buflen)
-{
- cu_tail_match_t *obj = (cu_tail_match_t *) data;
- size_t i;
-
- for (i = 0; i < obj->matches_num; i++)
- match_apply (obj->matches[i].match, buf);
-
- return (0);
-} /* int tail_callback */
-
-/*
- * Public functions
- */
-cu_tail_match_t *tail_match_create (const char *filename)
-{
- cu_tail_match_t *obj;
-
- obj = (cu_tail_match_t *) malloc (sizeof (cu_tail_match_t));
- if (obj == NULL)
- return (NULL);
- memset (obj, '\0', sizeof (cu_tail_match_t));
-
- 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)
-{
- size_t i;
-
- if (obj == NULL)
- return;
-
- if (obj->tail != NULL)
- {
- cu_tail_destroy (obj->tail);
- obj->tail = NULL;
- }
-
- for (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 = (cu_tail_match_match_t *) 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 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 = (cu_tail_match_simple_t *) malloc (sizeof (cu_tail_match_simple_t));
- if (user_data == NULL)
- {
- match_destroy (match);
- return (-1);
- }
- memset (user_data, '\0', sizeof (cu_tail_match_simple_t));
-
- 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;
-
- status = tail_match_add_match (obj, match, simple_submit_match,
- user_data, free);
-
- if (status != 0)
- {
- match_destroy (match);
- sfree (user_data);
- }
-
- return (status);
-} /* int tail_match_add_match_simple */
-
-int tail_match_read (cu_tail_match_t *obj)
-{
- char buffer[4096];
- int status;
- size_t i;
-
- 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 (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