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798c141c49
* split all API formatters in modules * added markdown formatting * updated csv readme * updated csv readme * more documentation * added more documentation * updated documentation * fixed typo * fixed typo
94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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#include "value.h"
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inline calculated_number rrdr2value(RRDR *r, long i, RRDR_OPTIONS options, int *all_values_are_null) {
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rrdset_check_rdlock(r->st);
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long c;
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RRDDIM *d;
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calculated_number *cn = &r->v[ i * r->d ];
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RRDR_VALUE_FLAGS *co = &r->o[ i * r->d ];
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calculated_number sum = 0, min = 0, max = 0, v;
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int all_null = 1, init = 1;
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calculated_number total = 1;
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int set_min_max = 0;
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if(unlikely(options & RRDR_OPTION_PERCENTAGE)) {
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total = 0;
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for(c = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
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calculated_number n = cn[c];
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if(likely((options & RRDR_OPTION_ABSOLUTE) && n < 0))
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n = -n;
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total += n;
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}
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// prevent a division by zero
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if(total == 0) total = 1;
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set_min_max = 1;
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}
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// for each dimension
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for(c = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
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if(unlikely(r->od[c] & RRDR_DIMENSION_HIDDEN)) continue;
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if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_DIMENSION_NONZERO))) continue;
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calculated_number n = cn[c];
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if(likely((options & RRDR_OPTION_ABSOLUTE) && n < 0))
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n = -n;
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if(unlikely(options & RRDR_OPTION_PERCENTAGE)) {
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n = n * 100 / total;
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if(unlikely(set_min_max)) {
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r->min = r->max = n;
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set_min_max = 0;
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}
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if(n < r->min) r->min = n;
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if(n > r->max) r->max = n;
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}
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if(unlikely(init)) {
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if(n > 0) {
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min = 0;
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max = n;
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}
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else {
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min = n;
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max = 0;
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}
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init = 0;
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}
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if(likely(!(co[c] & RRDR_VALUE_EMPTY))) {
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all_null = 0;
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sum += n;
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}
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if(n < min) min = n;
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if(n > max) max = n;
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}
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if(unlikely(all_null)) {
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if(likely(all_values_are_null))
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*all_values_are_null = 1;
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return 0;
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}
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else {
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if(likely(all_values_are_null))
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*all_values_are_null = 0;
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}
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if(options & RRDR_OPTION_MIN2MAX)
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v = max - min;
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else
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v = sum;
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return v;
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}
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