137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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#include "countif.h"
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// ----------------------------------------------------------------------------
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// countif
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struct grouping_countif {
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size_t (*comparison)(NETDATA_DOUBLE, NETDATA_DOUBLE);
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NETDATA_DOUBLE target;
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size_t count;
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size_t matched;
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};
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static size_t countif_equal(NETDATA_DOUBLE v, NETDATA_DOUBLE target) {
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return (v == target);
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}
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static size_t countif_notequal(NETDATA_DOUBLE v, NETDATA_DOUBLE target) {
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return (v != target);
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}
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static size_t countif_less(NETDATA_DOUBLE v, NETDATA_DOUBLE target) {
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return (v < target);
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}
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static size_t countif_lessequal(NETDATA_DOUBLE v, NETDATA_DOUBLE target) {
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return (v <= target);
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}
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static size_t countif_greater(NETDATA_DOUBLE v, NETDATA_DOUBLE target) {
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return (v > target);
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}
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static size_t countif_greaterequal(NETDATA_DOUBLE v, NETDATA_DOUBLE target) {
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return (v >= target);
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}
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void grouping_create_countif(RRDR *r, const char *options __maybe_unused) {
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struct grouping_countif *g = callocz(1, sizeof(struct grouping_countif));
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r->internal.grouping_data = g;
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if(options && *options) {
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// skip any leading spaces
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while(isspace(*options)) options++;
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// find the comparison function
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switch(*options) {
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case '!':
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options++;
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if(*options != '=' && *options != ':')
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options--;
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g->comparison = countif_notequal;
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break;
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case '>':
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options++;
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if(*options == '=' || *options == ':') {
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g->comparison = countif_greaterequal;
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}
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else {
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options--;
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g->comparison = countif_greater;
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}
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break;
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case '<':
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options++;
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if(*options == '>') {
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g->comparison = countif_notequal;
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}
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else if(*options == '=' || *options == ':') {
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g->comparison = countif_lessequal;
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}
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else {
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options--;
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g->comparison = countif_less;
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}
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break;
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default:
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case '=':
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case ':':
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g->comparison = countif_equal;
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break;
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}
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if(*options) options++;
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// skip everything up to the first digit
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while(isspace(*options)) options++;
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g->target = str2ndd(options, NULL);
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}
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else {
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g->target = 0.0;
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g->comparison = countif_equal;
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}
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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_countif(RRDR *r) {
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struct grouping_countif *g = (struct grouping_countif *)r->internal.grouping_data;
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g->matched = 0;
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g->count = 0;
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}
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void grouping_free_countif(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_countif(RRDR *r, NETDATA_DOUBLE value) {
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struct grouping_countif *g = (struct grouping_countif *)r->internal.grouping_data;
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g->matched += g->comparison(value, g->target);
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g->count++;
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}
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NETDATA_DOUBLE grouping_flush_countif(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) {
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struct grouping_countif *g = (struct grouping_countif *)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 = (NETDATA_DOUBLE)g->matched * 100 / (NETDATA_DOUBLE)g->count;
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}
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g->matched = 0;
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g->count = 0;
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return value;
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}
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