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// SPDX-License-Identifier: GPL-3.0-or-later
#include "average.h"
// ----------------------------------------------------------------------------
// average
struct grouping_average {
calculated_number sum;
size_t count;
};
void *grouping_create_average(RRDR *r) {
(void)r;
return callocz(1, sizeof(struct grouping_average));
}
// resets when switches dimensions
// so, clear everything to restart
void grouping_reset_average(RRDR *r) {
struct grouping_average *g = (struct grouping_average *)r->internal.grouping_data;
g->sum = 0;
g->count = 0;
}
void grouping_free_average(RRDR *r) {
freez(r->internal.grouping_data);
r->internal.grouping_data = NULL;
}
void grouping_add_average(RRDR *r, calculated_number value) {
if(!isnan(value)) {
struct grouping_average *g = (struct grouping_average *)r->internal.grouping_data;
g->sum += value;
g->count++;
}
}
calculated_number grouping_flush_average(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) {
struct grouping_average *g = (struct grouping_average *)r->internal.grouping_data;
calculated_number value;
if(unlikely(!g->count)) {
value = 0.0;
*rrdr_value_options_ptr |= RRDR_VALUE_EMPTY;
}
else {
if(unlikely(r->internal.resampling_group != 1)) {
if (unlikely(r->result_options & RRDR_RESULT_OPTION_VARIABLE_STEP))
value = g->sum / g->count / r->internal.resampling_divisor;
else
value = g->sum / r->internal.resampling_divisor;
} else
value = g->sum / g->count;
}
g->sum = 0.0;
g->count = 0;
return value;
}
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