/**
* Adds a new timer sample for the timer with a
* given name.
* @arg name The name of the timer
* @arg val The sample to add
* @arg sample_rate The sample rate of val
* @return 0 on success.
*/
static int metrics_add_timer_sample(metrics *m, char *name, double val, double sample_rate) {
timer_hist *t;
histogram_config *conf;
int res = hashmap_get(m->timers, name, (void**)&t);
// New timer
if (res == -1) {
t = malloc(sizeof(timer_hist));
init_timer(m->timer_eps, m->quantiles, m->num_quants, &t->tm);
hashmap_put(m->timers, name, t);
// Check if we have any histograms configured
if (m->histograms && !radix_longest_prefix(m->histograms, name, (void**)&conf)) {
t->conf = conf;
t->counts = calloc(conf->num_bins, sizeof(unsigned int));
} else {
t->conf = NULL;
t->counts = NULL;
}
}
// Add the histogram value
if (t->conf) {
conf = t->conf;
if (val < conf->min_val)
t->counts[0]++;
else if (val >= conf->max_val)
t->counts[conf->num_bins - 1]++;
else {
int idx = ((val - conf->min_val) / conf->bin_width) + 1;
t->counts[idx]++;
}
}
// Add the sample value
return timer_add_sample(&t->tm, val, sample_rate);
}
void * radix_longest_prefix_value(radix_tree *t, char *key)
{
void *value = NULL;
radix_longest_prefix(t, key, &value);
return value;
}
