Viewing file:  value.c (2.3 KB) -rw-r--r--
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// SPDX-License-Identifier: GPL-3.0-or-later
#include "value.h"
inline calculated_number rrdr2value(RRDR *r, long i, RRDR_OPTIONS options, int *all_values_are_null) {
if (r->st_needs_lock)
rrdset_check_rdlock(r->st);
long c;
RRDDIM *d;
calculated_number *cn = &r->v[ i * r->d ];
RRDR_VALUE_FLAGS *co = &r->o[ i * r->d ];
calculated_number sum = 0, min = 0, max = 0, v;
int all_null = 1, init = 1;
calculated_number total = 1;
int set_min_max = 0;
if(unlikely(options & RRDR_OPTION_PERCENTAGE)) {
total = 0;
for(c = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
calculated_number n = cn[c];
if(likely((options & RRDR_OPTION_ABSOLUTE) && n < 0))
n = -n;
total += n;
}
// prevent a division by zero
if(total == 0) total = 1;
set_min_max = 1;
}
// for each dimension
for(c = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
if(unlikely(r->od[c] & RRDR_DIMENSION_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_DIMENSION_NONZERO))) continue;
calculated_number n = cn[c];
if(likely((options & RRDR_OPTION_ABSOLUTE) && n < 0))
n = -n;
if(unlikely(options & RRDR_OPTION_PERCENTAGE)) {
n = n * 100 / total;
if(unlikely(set_min_max)) {
r->min = r->max = n;
set_min_max = 0;
}
if(n < r->min) r->min = n;
if(n > r->max) r->max = n;
}
if(unlikely(init)) {
if(n > 0) {
min = 0;
max = n;
}
else {
min = n;
max = 0;
}
init = 0;
}
if(likely(!(co[c] & RRDR_VALUE_EMPTY))) {
all_null = 0;
sum += n;
}
if(n < min) min = n;
if(n > max) max = n;
}
if(unlikely(all_null)) {
if(likely(all_values_are_null))
*all_values_are_null = 1;
return 0;
}
else {
if(likely(all_values_are_null))
*all_values_are_null = 0;
}
if(options & RRDR_OPTION_MIN2MAX)
v = max - min;
else
v = sum;
return v;
}
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