static int statsd_shutdown (void) /* {{{ */
{
void *key;
void *value;
if (network_thread_running)
{
network_thread_shutdown = 1;
pthread_kill (network_thread, SIGTERM);
pthread_join (network_thread, /* retval = */ NULL);
}
network_thread_running = 0;
pthread_mutex_lock (&metrics_lock);
while (c_avl_pick (metrics_tree, &key, &value) == 0)
{
sfree (key);
statsd_metric_free (value);
}
c_avl_destroy (metrics_tree);
metrics_tree = NULL;
sfree (conf_node);
sfree (conf_service);
pthread_mutex_unlock (&metrics_lock);
return (0);
} /* }}} int statsd_shutdown */
static void statsd_config_free(statsd_config_t *conf)
{
void *key = NULL;
void *value = NULL;
if (NULL == conf)
return;
while (c_avl_pick (conf->metrics_tree, &key, &value) == 0) {
sfree (key);
statsd_metric_free (value);
}
c_avl_destroy(conf->metrics_tree);
sfree(conf->node_name);
sfree(conf->host);
sfree(conf->service);
sfree(conf->timer_percentile);
sfree(conf->global_prefix);
sfree(conf->counter_prefix);
sfree(conf->timer_prefix);
sfree(conf->gauge_prefix);
sfree(conf->set_prefix);
sfree(conf->global_postfix);
sfree(conf);
conf = NULL;
return;
}
static int statsd_read(void) /* {{{ */
{
c_avl_iterator_t *iter;
char *name;
statsd_metric_t *metric;
char **to_be_deleted = NULL;
size_t to_be_deleted_num = 0;
pthread_mutex_lock(&metrics_lock);
if (metrics_tree == NULL) {
pthread_mutex_unlock(&metrics_lock);
return 0;
}
iter = c_avl_get_iterator(metrics_tree);
while (c_avl_iterator_next(iter, (void *)&name, (void *)&metric) == 0) {
if ((metric->updates_num == 0) &&
((conf_delete_counters && (metric->type == STATSD_COUNTER)) ||
(conf_delete_timers && (metric->type == STATSD_TIMER)) ||
(conf_delete_gauges && (metric->type == STATSD_GAUGE)) ||
(conf_delete_sets && (metric->type == STATSD_SET)))) {
DEBUG("statsd plugin: Deleting metric \"%s\".", name);
strarray_add(&to_be_deleted, &to_be_deleted_num, name);
continue;
}
/* Names have a prefix, e.g. "c:", which determines the (statsd) type.
* Remove this here. */
statsd_metric_submit_unsafe(name + 2, metric);
/* Reset the metric. */
metric->updates_num = 0;
if (metric->type == STATSD_SET)
statsd_metric_clear_set_unsafe(metric);
}
c_avl_iterator_destroy(iter);
for (size_t i = 0; i < to_be_deleted_num; i++) {
int status;
status = c_avl_remove(metrics_tree, to_be_deleted[i], (void *)&name,
(void *)&metric);
if (status != 0) {
ERROR("stats plugin: c_avl_remove (\"%s\") failed with status %i.",
to_be_deleted[i], status);
continue;
}
sfree(name);
statsd_metric_free(metric);
}
pthread_mutex_unlock(&metrics_lock);
strarray_free(to_be_deleted, to_be_deleted_num);
return 0;
} /* }}} int statsd_read */
