58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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#include "max.h"
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// ----------------------------------------------------------------------------
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// max
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struct grouping_max {
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NETDATA_DOUBLE max;
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size_t count;
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};
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void grouping_create_max(RRDR *r, const char *options __maybe_unused) {
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r->internal.grouping_data = callocz(1, sizeof(struct grouping_max));
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}
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// resets when switches dimensions
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// so, clear everything to restart
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void grouping_reset_max(RRDR *r) {
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struct grouping_max *g = (struct grouping_max *)r->internal.grouping_data;
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g->max = 0;
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g->count = 0;
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}
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void grouping_free_max(RRDR *r) {
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freez(r->internal.grouping_data);
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r->internal.grouping_data = NULL;
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}
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void grouping_add_max(RRDR *r, NETDATA_DOUBLE value) {
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struct grouping_max *g = (struct grouping_max *)r->internal.grouping_data;
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if(!g->count || fabsndd(value) > fabsndd(g->max)) {
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g->max = value;
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g->count++;
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}
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}
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NETDATA_DOUBLE grouping_flush_max(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) {
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struct grouping_max *g = (struct grouping_max *)r->internal.grouping_data;
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NETDATA_DOUBLE value;
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if(unlikely(!g->count)) {
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value = 0.0;
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*rrdr_value_options_ptr |= RRDR_VALUE_EMPTY;
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}
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else {
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value = g->max;
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}
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g->max = 0.0;
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g->count = 0;
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return value;
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}
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