2 * collectd - src/utils_tail_match.c
3 * Copyright (C) 2007-2008 C-Ware, Inc.
4 * Copyright (C) 2008 Florian Forster
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 * Luke Heberling <lukeh at c-ware.com>
26 * Florian Forster <octo at collectd.org>
29 * Encapsulates useful code to plugins which must parse a log file.
36 #include "utils_match.h"
37 #include "utils_tail.h"
38 #include "utils_tail_match.h"
39 #include "utils_latency_config.h"
41 struct cu_tail_match_simple_s
43 char plugin[DATA_MAX_NAME_LEN];
44 char plugin_instance[DATA_MAX_NAME_LEN];
45 char type[DATA_MAX_NAME_LEN];
46 char type_instance[DATA_MAX_NAME_LEN];
48 latency_config_t latency_config;
50 typedef struct cu_tail_match_simple_s cu_tail_match_simple_t;
52 struct cu_tail_match_match_s
56 int (*submit) (cu_match_t *match, void *user_data);
57 void (*free) (void *user_data);
59 typedef struct cu_tail_match_match_s cu_tail_match_match_t;
61 struct cu_tail_match_s
67 cu_tail_match_match_t *matches;
74 static int simple_submit_match (cu_match_t *match, void *user_data)
76 cu_tail_match_simple_t *data = (cu_tail_match_simple_t *) user_data;
77 cu_match_value_t *match_value;
78 value_list_t vl = VALUE_LIST_INIT;
81 match_value = (cu_match_value_t *) match_get_user_data (match);
82 if (match_value == NULL)
85 if ((match_value->ds_type & UTILS_MATCH_DS_TYPE_GAUGE)
86 && (match_value->values_num == 0))
87 values[0].gauge = NAN;
89 values[0] = match_value->value;
93 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
94 sstrncpy (vl.plugin, data->plugin, sizeof (vl.plugin));
95 sstrncpy (vl.plugin_instance, data->plugin_instance,
96 sizeof (vl.plugin_instance));
97 sstrncpy (vl.type, data->type, sizeof (vl.type));
98 sstrncpy (vl.type_instance, data->type_instance,
99 sizeof (vl.type_instance));
101 vl.interval = data->interval;
102 plugin_dispatch_values (&vl);
104 if (match_value->ds_type & UTILS_MATCH_DS_TYPE_GAUGE)
106 match_value->value.gauge = NAN;
107 match_value->values_num = 0;
111 } /* int simple_submit_match */
113 static int simple_submit_latency (cu_match_t *match, void *user_data)
115 cu_tail_match_simple_t *data = (cu_tail_match_simple_t *) user_data;
116 cu_match_value_t *match_value;
117 value_list_t vl = VALUE_LIST_INIT;
119 match_value = (cu_match_value_t *) match_get_user_data (match);
120 if (match_value == NULL)
123 vl.values = &(value_t) { .gauge = NAN };
125 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
126 sstrncpy (vl.plugin, data->plugin, sizeof (vl.plugin));
127 sstrncpy (vl.plugin_instance, data->plugin_instance,
128 sizeof (vl.plugin_instance));
129 sstrncpy (vl.type, data->type, sizeof (vl.type));
130 vl.interval = data->interval;
133 if (data->latency_config.lower) {
134 ssnprintf (vl.type_instance, sizeof (vl.type_instance),
136 vl.values[0].gauge = (match_value->values_num != 0)
137 ? CDTIME_T_TO_DOUBLE (latency_counter_get_min (match_value->latency))
139 plugin_dispatch_values (&vl);
142 if (data->latency_config.avg) {
143 ssnprintf (vl.type_instance, sizeof (vl.type_instance),
145 vl.values[0].gauge = (match_value->values_num != 0)
146 ? CDTIME_T_TO_DOUBLE (latency_counter_get_average (match_value->latency))
148 plugin_dispatch_values (&vl);
151 if (data->latency_config.upper) {
152 ssnprintf (vl.type_instance, sizeof (vl.type_instance),
154 vl.values[0].gauge = (match_value->values_num != 0)
155 ? CDTIME_T_TO_DOUBLE (latency_counter_get_max (match_value->latency))
157 plugin_dispatch_values (&vl);
160 /* Submit percentiles */
161 if (data->latency_config.percentile_type != NULL)
162 sstrncpy (vl.type, data->latency_config.percentile_type, sizeof (vl.type));
163 for (size_t i = 0; i < data->latency_config.percentile_num; i++)
165 ssnprintf (vl.type_instance, sizeof (vl.type_instance),
166 "percentile-%.0f", data->latency_config.percentile[i]);
167 vl.values[0].gauge = (match_value->values_num != 0)
168 ? CDTIME_T_TO_DOUBLE (latency_counter_get_percentile (match_value->latency,
169 data->latency_config.percentile[i]))
171 plugin_dispatch_values (&vl);
175 sstrncpy (vl.type, data->type, sizeof (vl.type));
176 if (data->latency_config.rates_type != NULL)
177 sstrncpy (vl.type, data->latency_config.rates_type, sizeof (vl.type));
178 for (size_t i = 0; i < data->latency_config.rates_num; i++)
180 ssnprintf (vl.type_instance, sizeof (vl.type_instance),
182 CDTIME_T_TO_DOUBLE(data->latency_config.rates[i * 2]),
183 CDTIME_T_TO_DOUBLE(data->latency_config.rates[i * 2 + 1]));
184 vl.values[0].gauge = (match_value->values_num != 0)
185 ? latency_counter_get_rate (match_value->latency,
186 data->latency_config.rates[i * 2],
187 data->latency_config.rates[i * 2 + 1],
190 plugin_dispatch_values (&vl);
192 latency_counter_reset (match_value->latency);
194 match_value->value.gauge = NAN;
195 match_value->values_num = 0;
198 } /* int simple_submit_latency */
200 static int tail_callback (void *data, char *buf,
201 int __attribute__((unused)) buflen)
203 cu_tail_match_t *obj = (cu_tail_match_t *) data;
205 for (size_t i = 0; i < obj->matches_num; i++)
206 match_apply (obj->matches[i].match, buf);
209 } /* int tail_callback */
211 static void tail_match_simple_free (void *data)
213 cu_tail_match_simple_t *user_data = (cu_tail_match_simple_t *) data;
214 latency_config_free(user_data->latency_config);
216 } /* void tail_match_simple_free */
221 cu_tail_match_t *tail_match_create (const char *filename)
223 cu_tail_match_t *obj;
225 obj = calloc (1, sizeof (*obj));
229 obj->tail = cu_tail_create (filename);
230 if (obj->tail == NULL)
237 } /* cu_tail_match_t *tail_match_create */
239 void tail_match_destroy (cu_tail_match_t *obj)
244 if (obj->tail != NULL)
246 cu_tail_destroy (obj->tail);
250 for (size_t i = 0; i < obj->matches_num; i++)
252 cu_tail_match_match_t *match = obj->matches + i;
253 if (match->match != NULL)
255 match_destroy (match->match);
259 if ((match->user_data != NULL)
260 && (match->free != NULL))
261 (*match->free) (match->user_data);
262 match->user_data = NULL;
265 sfree (obj->matches);
267 } /* void tail_match_destroy */
269 int tail_match_add_match (cu_tail_match_t *obj, cu_match_t *match,
270 int (*submit_match) (cu_match_t *match, void *user_data),
272 void (*free_user_data) (void *user_data))
274 cu_tail_match_match_t *temp;
276 temp = realloc (obj->matches,
277 sizeof (cu_tail_match_match_t) * (obj->matches_num + 1));
284 DEBUG ("tail_match_add_match interval %lf", CDTIME_T_TO_DOUBLE(((cu_tail_match_simple_t *)user_data)->interval));
285 temp = obj->matches + (obj->matches_num - 1);
288 temp->user_data = user_data;
289 temp->submit = submit_match;
290 temp->free = free_user_data;
293 } /* int tail_match_add_match */
295 int tail_match_add_match_simple (cu_tail_match_t *obj,
296 const char *regex, const char *excluderegex, int ds_type,
297 const char *plugin, const char *plugin_instance,
298 const char *type, const char *type_instance,
299 const latency_config_t latency_cfg,
300 const cdtime_t interval)
303 cu_tail_match_simple_t *user_data;
306 match = match_create_simple (regex, excluderegex, ds_type);
310 user_data = calloc (1, sizeof (*user_data));
311 if (user_data == NULL)
313 match_destroy (match);
317 sstrncpy (user_data->plugin, plugin, sizeof (user_data->plugin));
318 if (plugin_instance != NULL)
319 sstrncpy (user_data->plugin_instance, plugin_instance,
320 sizeof (user_data->plugin_instance));
322 sstrncpy (user_data->type, type, sizeof (user_data->type));
323 if (type_instance != NULL)
324 sstrncpy (user_data->type_instance, type_instance,
325 sizeof (user_data->type_instance));
327 user_data->interval = interval;
329 if ((ds_type & UTILS_MATCH_DS_TYPE_GAUGE)
330 && (ds_type & UTILS_MATCH_CF_GAUGE_LATENCY))
332 status = latency_config_copy(&user_data->latency_config, latency_cfg);
335 ERROR ("tail_match_add_match_simple: latency_config_copy() failed.");
340 status = tail_match_add_match (obj, match, simple_submit_latency,
341 user_data, tail_match_simple_free);
343 status = tail_match_add_match (obj, match, simple_submit_match,
350 tail_match_simple_free(user_data);
351 match_destroy (match);
355 } /* int tail_match_add_match_simple */
357 int tail_match_read (cu_tail_match_t *obj)
362 status = cu_tail_read (obj->tail, buffer, sizeof (buffer), tail_callback,
366 ERROR ("tail_match: cu_tail_read failed.");
370 for (size_t i = 0; i < obj->matches_num; i++)
372 cu_tail_match_match_t *lt_match = obj->matches + i;
374 if (lt_match->submit == NULL)
377 (*lt_match->submit) (lt_match->match, lt_match->user_data);
381 } /* int tail_match_read */
383 /* vim: set sw=2 sts=2 ts=8 : */