diff options
Diffstat (limited to 'web/api/queries/countif/countif.h')
-rw-r--r-- | web/api/queries/countif/countif.h | 143 |
1 files changed, 138 insertions, 5 deletions
diff --git a/web/api/queries/countif/countif.h b/web/api/queries/countif/countif.h index dfe8056589..896b9d873a 100644 --- a/web/api/queries/countif/countif.h +++ b/web/api/queries/countif/countif.h @@ -6,10 +6,143 @@ #include "../query.h" #include "../rrdr.h" -void grouping_create_countif(RRDR *r, const char *options __maybe_unused); -void grouping_reset_countif(RRDR *r); -void grouping_free_countif(RRDR *r); -void grouping_add_countif(RRDR *r, NETDATA_DOUBLE value); -NETDATA_DOUBLE grouping_flush_countif(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr); +enum tg_countif_cmp { + TG_COUNTIF_EQUAL, + TG_COUNTIF_NOTEQUAL, + TG_COUNTIF_LESS, + TG_COUNTIF_LESSEQUAL, + TG_COUNTIF_GREATER, + TG_COUNTIF_GREATEREQUAL, +}; + +struct tg_countif { + enum tg_countif_cmp comparison; + NETDATA_DOUBLE target; + size_t count; + size_t matched; +}; + +static inline void tg_countif_create(RRDR *r, const char *options __maybe_unused) { + struct tg_countif *g = onewayalloc_callocz(r->internal.owa, 1, sizeof(struct tg_countif)); + r->time_grouping.data = g; + + if(options && *options) { + // skip any leading spaces + while(isspace(*options)) options++; + + // find the comparison function + switch(*options) { + case '!': + options++; + if(*options != '=' && *options != ':') + options--; + g->comparison = TG_COUNTIF_NOTEQUAL; + break; + + case '>': + options++; + if(*options == '=' || *options == ':') { + g->comparison = TG_COUNTIF_GREATEREQUAL; + } + else { + options--; + g->comparison = TG_COUNTIF_GREATER; + } + break; + + case '<': + options++; + if(*options == '>') { + g->comparison = TG_COUNTIF_NOTEQUAL; + } + else if(*options == '=' || *options == ':') { + g->comparison = TG_COUNTIF_LESSEQUAL; + } + else { + options--; + g->comparison = TG_COUNTIF_LESS; + } + break; + + default: + case '=': + case ':': + g->comparison = TG_COUNTIF_EQUAL; + break; + } + if(*options) options++; + + // skip everything up to the first digit + while(isspace(*options)) options++; + + g->target = str2ndd(options, NULL); + } + else { + g->target = 0.0; + g->comparison = TG_COUNTIF_EQUAL; + } +} + +// resets when switches dimensions +// so, clear everything to restart +static inline void tg_countif_reset(RRDR *r) { + struct tg_countif *g = (struct tg_countif *)r->time_grouping.data; + g->matched = 0; + g->count = 0; +} + +static inline void tg_countif_free(RRDR *r) { + onewayalloc_freez(r->internal.owa, r->time_grouping.data); + r->time_grouping.data = NULL; +} + +static inline void tg_countif_add(RRDR *r, NETDATA_DOUBLE value) { + struct tg_countif *g = (struct tg_countif *)r->time_grouping.data; + switch(g->comparison) { + case TG_COUNTIF_GREATER: + if(value > g->target) g->matched++; + break; + + case TG_COUNTIF_GREATEREQUAL: + if(value >= g->target) g->matched++; + break; + + case TG_COUNTIF_LESS: + if(value < g->target) g->matched++; + break; + + case TG_COUNTIF_LESSEQUAL: + if(value <= g->target) g->matched++; + break; + + case TG_COUNTIF_EQUAL: + if(value == g->target) g->matched++; + break; + + case TG_COUNTIF_NOTEQUAL: + if(value != g->target) g->matched++; + break; + } + g->count++; +} + +static inline NETDATA_DOUBLE tg_countif_flush(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) { + struct tg_countif *g = (struct tg_countif *)r->time_grouping.data; + + NETDATA_DOUBLE value; + + if(unlikely(!g->count)) { + value = 0.0; + *rrdr_value_options_ptr |= RRDR_VALUE_EMPTY; + } + else { + value = (NETDATA_DOUBLE)g->matched * 100 / (NETDATA_DOUBLE)g->count; + } + + g->matched = 0; + g->count = 0; + + return value; +} #endif //NETDATA_API_QUERY_COUNTIF_H |