static int ctail_config_add_match(cu_tail_match_t *tm, const char *plugin_name,
const char *plugin_instance,
oconfig_item_t *ci) {
ctail_config_match_t cm = {0};
int status;
if (ci->values_num != 0) {
WARNING("tail plugin: Ignoring arguments for the `Match' block.");
}
status = 0;
for (int i = 0; i < ci->children_num; i++) {
oconfig_item_t *option = ci->children + i;
if (strcasecmp("Regex", option->key) == 0)
status = cf_util_get_string(option, &cm.regex);
else if (strcasecmp("ExcludeRegex", option->key) == 0)
status = cf_util_get_string(option, &cm.excluderegex);
else if (strcasecmp("DSType", option->key) == 0)
status = ctail_config_add_match_dstype(&cm, option);
else if (strcasecmp("Type", option->key) == 0)
status = cf_util_get_string(option, &cm.type);
else if (strcasecmp("Instance", option->key) == 0)
status = cf_util_get_string(option, &cm.type_instance);
else {
WARNING("tail plugin: Option `%s' not allowed here.", option->key);
status = -1;
}
if (status != 0)
break;
} /* for (i = 0; i < ci->children_num; i++) */
while (status == 0) {
if (cm.regex == NULL) {
WARNING("tail plugin: `Regex' missing in `Match' block.");
status = -1;
break;
}
if (cm.type == NULL) {
WARNING("tail plugin: `Type' missing in `Match' block.");
status = -1;
break;
}
if (cm.flags == 0) {
WARNING("tail plugin: `DSType' missing in `Match' block.");
status = -1;
break;
}
break;
} /* while (status == 0) */
if (status == 0) {
// TODO(octo): there's nothing "simple" about the latency stuff …
status = tail_match_add_match_simple(
tm, cm.regex, cm.excluderegex, cm.flags,
(plugin_name != NULL) ? plugin_name : "tail", plugin_instance, cm.type,
cm.type_instance, cm.latency);
if (status != 0)
ERROR("tail plugin: tail_match_add_match_simple failed.");
}
sfree(cm.regex);
sfree(cm.excluderegex);
sfree(cm.type);
sfree(cm.type_instance);
latency_config_free(cm.latency);
return status;
} /* int ctail_config_add_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 */
