13 #define HOSTNAME_MAX 1024
14 char *hostname = "unknown";
16 void rrd_stats_api_v1_chart(RRDSET *st, BUFFER *wb)
18 pthread_rwlock_rdlock(&st->rwlock);
22 "\t\t\t\"id\": \"%s\",\n"
23 "\t\t\t\"name\": \"%s\",\n"
24 "\t\t\t\"type\": \"%s\",\n"
25 "\t\t\t\"family\": \"%s\",\n"
26 "\t\t\t\"title\": \"%s\",\n"
27 "\t\t\t\"priority\": %ld,\n"
28 "\t\t\t\"enabled\": %s,\n"
29 "\t\t\t\"units\": \"%s\",\n"
30 "\t\t\t\"data_url\": \"/api/v1/data?chart=%s\",\n"
31 "\t\t\t\"chart_type\": \"%s\",\n"
32 "\t\t\t\"duration\": %ld,\n"
33 "\t\t\t\"first_entry\": %lu,\n"
34 "\t\t\t\"last_entry\": %lu,\n"
35 "\t\t\t\"update_every\": %d,\n"
36 "\t\t\t\"dimensions\": {\n"
43 , st->enabled?"true":"false"
46 , rrdset_type_name(st->chart_type)
47 , st->entries * st->update_every
48 , rrdset_first_entry_t(st)
49 , rrdset_last_entry_t(st)
53 unsigned long memory = st->memsize;
57 for(rd = st->dimensions; rd ; rd = rd->next) {
58 if(rd->flags & RRDDIM_FLAG_HIDDEN) continue;
60 memory += rd->memsize;
64 "\t\t\t\t\"%s\": { \"name\": \"%s\" }"
78 pthread_rwlock_unlock(&st->rwlock);
81 void rrd_stats_api_v1_charts(BUFFER *wb)
86 buffer_sprintf(wb, "{\n"
87 "\t\"hostname\": \"%s\""
88 ",\n\t\"update_every\": %d"
89 ",\n\t\"history\": %d"
93 , rrd_default_history_entries
96 pthread_rwlock_rdlock(&rrdset_root_rwlock);
97 for(st = rrdset_root, c = 0; st ; st = st->next) {
99 if(c) buffer_strcat(wb, ",");
100 buffer_strcat(wb, "\n\t\t\"");
101 buffer_strcat(wb, st->id);
102 buffer_strcat(wb, "\": ");
103 rrd_stats_api_v1_chart(st, wb);
107 pthread_rwlock_unlock(&rrdset_root_rwlock);
109 buffer_strcat(wb, "\n\t}\n}\n");
113 unsigned long rrd_stats_one_json(RRDSET *st, char *options, BUFFER *wb)
115 time_t now = time(NULL);
117 pthread_rwlock_rdlock(&st->rwlock);
121 "\t\t\t\"id\": \"%s\",\n"
122 "\t\t\t\"name\": \"%s\",\n"
123 "\t\t\t\"type\": \"%s\",\n"
124 "\t\t\t\"family\": \"%s\",\n"
125 "\t\t\t\"title\": \"%s\",\n"
126 "\t\t\t\"priority\": %ld,\n"
127 "\t\t\t\"enabled\": %d,\n"
128 "\t\t\t\"units\": \"%s\",\n"
129 "\t\t\t\"url\": \"/data/%s/%s\",\n"
130 "\t\t\t\"chart_type\": \"%s\",\n"
131 "\t\t\t\"counter\": %ld,\n"
132 "\t\t\t\"entries\": %ld,\n"
133 "\t\t\t\"first_entry_t\": %lu,\n"
134 "\t\t\t\"last_entry\": %ld,\n"
135 "\t\t\t\"last_entry_t\": %lu,\n"
136 "\t\t\t\"last_entry_secs_ago\": %lu,\n"
137 "\t\t\t\"update_every\": %d,\n"
138 "\t\t\t\"isdetail\": %d,\n"
139 "\t\t\t\"usec_since_last_update\": %llu,\n"
140 "\t\t\t\"collected_total\": " TOTAL_NUMBER_FORMAT ",\n"
141 "\t\t\t\"last_collected_total\": " TOTAL_NUMBER_FORMAT ",\n"
142 "\t\t\t\"dimensions\": [\n"
151 , st->name, options?options:""
152 , rrdset_type_name(st->chart_type)
155 , rrdset_first_entry_t(st)
156 , rrdset_last_slot(st)
157 , rrdset_last_entry_t(st)
158 , (now < rrdset_last_entry_t(st)) ? (time_t)0 : now - rrdset_last_entry_t(st)
161 , st->usec_since_last_update
162 , st->collected_total
163 , st->last_collected_total
166 unsigned long memory = st->memsize;
169 for(rd = st->dimensions; rd ; rd = rd->next) {
171 memory += rd->memsize;
175 "\t\t\t\t\t\"id\": \"%s\",\n"
176 "\t\t\t\t\t\"name\": \"%s\",\n"
177 "\t\t\t\t\t\"entries\": %ld,\n"
178 "\t\t\t\t\t\"isHidden\": %d,\n"
179 "\t\t\t\t\t\"algorithm\": \"%s\",\n"
180 "\t\t\t\t\t\"multiplier\": %ld,\n"
181 "\t\t\t\t\t\"divisor\": %ld,\n"
182 "\t\t\t\t\t\"last_entry_t\": %lu,\n"
183 "\t\t\t\t\t\"collected_value\": " COLLECTED_NUMBER_FORMAT ",\n"
184 "\t\t\t\t\t\"calculated_value\": " CALCULATED_NUMBER_FORMAT ",\n"
185 "\t\t\t\t\t\"last_collected_value\": " COLLECTED_NUMBER_FORMAT ",\n"
186 "\t\t\t\t\t\"last_calculated_value\": " CALCULATED_NUMBER_FORMAT ",\n"
187 "\t\t\t\t\t\"memory\": %lu\n"
192 , (rd->flags & RRDDIM_FLAG_HIDDEN)?1:0
193 , rrddim_algorithm_name(rd->algorithm)
196 , rd->last_collected_time.tv_sec
197 , rd->collected_value
198 , rd->calculated_value
199 , rd->last_collected_value
200 , rd->last_calculated_value
208 "\t\t\t\"memory\" : %lu\n"
213 pthread_rwlock_unlock(&st->rwlock);
217 #define RRD_GRAPH_JSON_HEADER "{\n\t\"charts\": [\n"
218 #define RRD_GRAPH_JSON_FOOTER "\n\t]\n}\n"
220 void rrd_stats_graph_json(RRDSET *st, char *options, BUFFER *wb)
222 buffer_strcat(wb, RRD_GRAPH_JSON_HEADER);
223 rrd_stats_one_json(st, options, wb);
224 buffer_strcat(wb, RRD_GRAPH_JSON_FOOTER);
227 void rrd_stats_all_json(BUFFER *wb)
229 unsigned long memory = 0;
233 buffer_strcat(wb, RRD_GRAPH_JSON_HEADER);
235 pthread_rwlock_rdlock(&rrdset_root_rwlock);
236 for(st = rrdset_root, c = 0; st ; st = st->next) {
238 if(c) buffer_strcat(wb, ",\n");
239 memory += rrd_stats_one_json(st, NULL, wb);
243 pthread_rwlock_unlock(&rrdset_root_rwlock);
245 buffer_sprintf(wb, "\n\t],\n"
246 "\t\"hostname\": \"%s\",\n"
247 "\t\"update_every\": %d,\n"
248 "\t\"history\": %d,\n"
249 "\t\"memory\": %lu\n"
253 , rrd_default_history_entries
260 // ----------------------------------------------------------------------------
263 #define RRDR_EMPTY 0x01 // the dimension contains / the value is empty (null)
264 #define RRDR_RESET 0x02 // the dimension contains / the value is reset
265 #define RRDR_HIDDEN 0x04 // the dimension contains / the value is hidden
266 #define RRDR_NONZERO 0x08 // the dimension contains / the value is non-zero
269 typedef struct rrdresult {
270 RRDSET *st; // the chart this result refers to
272 int d; // the number of dimensions
273 int n; // the number of values in the arrays
274 int rows; // the number of rows used
276 uint8_t *od; // the options for the dimensions
278 time_t *t; // array of n timestamps
279 calculated_number *v; // array n x d values
280 uint8_t *o; // array n x d options
282 int c; // current line ( -1 ~ n ), ( -1 = none, use rrdr_rows() to get number of rows )
284 int group; // how many collected values were grouped for each row
285 int update_every; // what is the suggested update frequency in seconds
287 calculated_number min;
288 calculated_number max;
293 int has_st_lock; // if st is read locked by us
296 #define rrdr_rows(r) ((r)->rows)
299 static void rrdr_dump(RRDR *r)
304 fprintf(stderr, "\nCHART %s (%s)\n", r->st->id, r->st->name);
306 for(c = 0, d = r->st->dimensions; d ;c++, d = d->next) {
307 fprintf(stderr, "DIMENSION %s (%s), %s%s%s%s\n"
310 , (r->od[c] & RRDR_EMPTY)?"EMPTY ":""
311 , (r->od[c] & RRDR_RESET)?"RESET ":""
312 , (r->od[c] & RRDR_HIDDEN)?"HIDDEN ":""
313 , (r->od[c] & RRDR_NONZERO)?"NONZERO ":""
318 fprintf(stderr, "RRDR does not have any values in it.\n");
322 fprintf(stderr, "RRDR includes %d values in it:\n", r->rows);
324 // for each line in the array
325 for(i = 0; i < r->rows ;i++) {
326 calculated_number *cn = &r->v[ i * r->d ];
327 uint8_t *co = &r->o[ i * r->d ];
329 // print the id and the timestamp of the line
330 fprintf(stderr, "%ld %ld ", i + 1, r->t[i]);
332 // for each dimension
333 for(c = 0, d = r->st->dimensions; d ;c++, d = d->next) {
334 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
335 if(unlikely(!(r->od[c] & RRDR_NONZERO))) continue;
337 if(co[c] & RRDR_EMPTY)
338 fprintf(stderr, "null ");
340 fprintf(stderr, CALCULATED_NUMBER_FORMAT " %s%s%s%s "
342 , (co[c] & RRDR_EMPTY)?"E":" "
343 , (co[c] & RRDR_RESET)?"R":" "
344 , (co[c] & RRDR_HIDDEN)?"H":" "
345 , (co[c] & RRDR_NONZERO)?"N":" "
349 fprintf(stderr, "\n");
354 void rrdr_disable_not_selected_dimensions(RRDR *r, const char *dims)
356 char b[strlen(dims) + 1];
363 // disable all of them
364 for(c = 0, d = r->st->dimensions; d ;c++, d = d->next)
365 r->od[c] |= RRDR_HIDDEN;
367 while(o && *o && (tok = mystrsep(&o, ", |"))) {
370 // find it and enable it
371 for(c = 0, d = r->st->dimensions; d ;c++, d = d->next) {
372 if(!strcmp(d->name, tok)) {
373 r->od[c] &= ~RRDR_HIDDEN;
379 void rrdr_buffer_print_format(BUFFER *wb, uint32_t format)
382 case DATASOURCE_JSON:
383 buffer_strcat(wb, DATASOURCE_FORMAT_JSON);
386 case DATASOURCE_DATATABLE_JSON:
387 buffer_strcat(wb, DATASOURCE_FORMAT_DATATABLE_JSON);
390 case DATASOURCE_DATATABLE_JSONP:
391 buffer_strcat(wb, DATASOURCE_FORMAT_DATATABLE_JSONP);
394 case DATASOURCE_JSONP:
395 buffer_strcat(wb, DATASOURCE_FORMAT_JSONP);
399 buffer_strcat(wb, DATASOURCE_FORMAT_SSV);
403 buffer_strcat(wb, DATASOURCE_FORMAT_CSV);
407 buffer_strcat(wb, DATASOURCE_FORMAT_TSV);
410 case DATASOURCE_HTML:
411 buffer_strcat(wb, DATASOURCE_FORMAT_HTML);
414 case DATASOURCE_JS_ARRAY:
415 buffer_strcat(wb, DATASOURCE_FORMAT_JS_ARRAY);
418 case DATASOURCE_SSV_COMMA:
419 buffer_strcat(wb, DATASOURCE_FORMAT_SSV_COMMA);
423 buffer_strcat(wb, "unknown");
428 uint32_t rrdr_check_options(RRDR *r, uint32_t options)
430 if(options & RRDR_OPTION_NONZERO) {
434 // find how many dimensions are not zero
435 for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ; c++, rd = rd->next) {
436 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
437 if(unlikely(!(r->od[c] & RRDR_NONZERO))) continue;
441 // if with nonzero we get i = 0
442 // but c != 0, then disable nonzero
443 // to show all dimensions
444 if(!i) options &= ~RRDR_OPTION_NONZERO;
450 void rrdr_json_wrapper_begin(RRDR *r, BUFFER *wb, uint32_t format, uint32_t options, int string_value)
452 int rows = rrdr_rows(r);
456 //info("JSONWRAPPER(): %s: BEGIN", r->st->id);
457 char kq[2] = "", // key quote
458 sq[2] = ""; // string quote
460 if( options & RRDR_OPTION_GOOGLE_JSON ) {
469 buffer_sprintf(wb, "{\n"
472 " %sname%s: %s%s%s,\n"
473 " %sview_update_every%s: %d,\n"
474 " %supdate_every%s: %d,\n"
475 " %sfirst_entry_t%s: %u,\n"
476 " %slast_entry_t%s: %u,\n"
479 , kq, kq, sq, r->st->id, sq
480 , kq, kq, sq, r->st->name, sq
481 , kq, kq, r->update_every
482 , kq, kq, r->st->update_every
483 , kq, kq, rrdset_first_entry_t(r->st)
484 , kq, kq, rrdset_last_entry_t(r->st)
487 buffer_rrd_value(wb, r->min);
488 buffer_sprintf(wb, ",\n %smax%s: ", kq, kq);
489 buffer_rrd_value(wb, r->max);
490 buffer_sprintf(wb, ",\n"
493 " %sdimension_names%s: ["
498 for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
499 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
500 if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
502 if(i) buffer_strcat(wb, ", ");
503 buffer_strcat(wb, sq);
504 buffer_strcat(wb, rd->name);
505 buffer_strcat(wb, sq);
510 buffer_strcat(wb, sq);
511 buffer_strcat(wb, "no data");
512 buffer_strcat(wb, sq);
515 buffer_sprintf(wb, "],\n"
516 " %sdimension_ids%s: ["
519 for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
520 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
521 if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
523 if(i) buffer_strcat(wb, ", ");
524 buffer_strcat(wb, sq);
525 buffer_strcat(wb, rd->id);
526 buffer_strcat(wb, sq);
531 buffer_strcat(wb, sq);
532 buffer_strcat(wb, "no data");
533 buffer_strcat(wb, sq);
536 buffer_sprintf(wb, "],\n"
537 " %slatest_values%s: ["
540 for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
541 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
542 if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
544 if(i) buffer_strcat(wb, ", ");
547 storage_number n = rd->values[rrdset_last_slot(r->st)];
549 if(!does_storage_number_exist(n))
550 buffer_strcat(wb, "null");
552 buffer_rrd_value(wb, unpack_storage_number(n));
556 buffer_strcat(wb, "null");
559 buffer_sprintf(wb, "],\n"
560 " %sresult_latest_values%s: ["
565 for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
566 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
567 if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
569 if(i) buffer_strcat(wb, ", ");
572 calculated_number *cn = &r->v[ (0) * r->d ];
573 uint8_t *co = &r->o[ (0) * r->d ];
575 if(co[c] & RRDR_EMPTY)
576 buffer_strcat(wb, "null");
578 buffer_rrd_value(wb, cn[c]);
583 buffer_strcat(wb, "null");
586 buffer_sprintf(wb, "],\n"
587 " %sdimensions%s: %d,\n"
595 rrdr_buffer_print_format(wb, format);
597 buffer_sprintf(wb, "%s,\n"
603 if(string_value) buffer_strcat(wb, sq);
604 //info("JSONWRAPPER(): %s: END", r->st->id);
607 void rrdr_json_wrapper_end(RRDR *r, BUFFER *wb, uint32_t format, uint32_t options, int string_value)
612 char sq[2] = ""; // string quote
614 if( options & RRDR_OPTION_GOOGLE_JSON )
619 if(string_value) buffer_strcat(wb, sq);
620 buffer_strcat(wb, "\n}\n");
623 #define JSON_DATES_JS 1
624 #define JSON_DATES_TIMESTAMP 2
626 static void rrdr2json(RRDR *r, BUFFER *wb, uint32_t options, int datatable)
628 //info("RRD2JSON(): %s: BEGIN", r->st->id);
629 int row_annotations = 0, dates = JSON_DATES_JS, dates_with_new = 0;
630 char kq[2] = "", // key quote
631 sq[2] = "", // string quote
632 pre_label[101] = "", // before each label
633 post_label[101] = "", // after each label
634 pre_date[101] = "", // the beginning of line, to the date
635 post_date[101] = "", // closing the date
636 pre_value[101] = "", // before each value
637 post_value[101] = "", // after each value
638 post_line[101] = "", // at the end of each row
639 normal_annotation[201] = "", // default row annotation
640 overflow_annotation[201] = "", // overflow row annotation
641 data_begin[101] = "", // between labels and values
642 finish[101] = ""; // at the end of everything
645 dates = JSON_DATES_JS;
646 if( options & RRDR_OPTION_GOOGLE_JSON ) {
655 snprintf(pre_date, 100, " {%sc%s:[{%sv%s:%s", kq, kq, kq, kq, sq);
656 snprintf(post_date, 100, "%s}", sq);
657 snprintf(pre_label, 100, ",\n {%sid%s:%s%s,%slabel%s:%s", kq, kq, sq, sq, kq, kq, sq);
658 snprintf(post_label, 100, "%s,%spattern%s:%s%s,%stype%s:%snumber%s}", sq, kq, kq, sq, sq, kq, kq, sq, sq);
659 snprintf(pre_value, 100, ",{%sv%s:", kq, kq);
660 snprintf(post_value, 100, "}");
661 snprintf(post_line, 100, "]}");
662 snprintf(data_begin, 100, "\n ],\n %srows%s:\n [\n", kq, kq);
663 snprintf(finish, 100, "\n ]\n}\n");
665 snprintf(overflow_annotation, 200, ",{%sv%s:%sRESET OR OVERFLOW%s},{%sv%s:%sThe counters have been wrapped.%s}", kq, kq, sq, sq, kq, kq, sq, sq);
666 snprintf(normal_annotation, 200, ",{%sv%s:null},{%sv%s:null}", kq, kq, kq, kq);
668 buffer_sprintf(wb, "{\n %scols%s:\n [\n", kq, kq, kq, kq);
669 buffer_sprintf(wb, " {%sid%s:%s%s,%slabel%s:%stime%s,%spattern%s:%s%s,%stype%s:%sdatetime%s},\n", kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq);
670 buffer_sprintf(wb, " {%sid%s:%s%s,%slabel%s:%s%s,%spattern%s:%s%s,%stype%s:%sstring%s,%sp%s:{%srole%s:%sannotation%s}},\n", kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, kq, kq, sq, sq);
671 buffer_sprintf(wb, " {%sid%s:%s%s,%slabel%s:%s%s,%spattern%s:%s%s,%stype%s:%sstring%s,%sp%s:{%srole%s:%sannotationText%s}}", kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, kq, kq, sq, sq);
673 // remove the valueobjects flag
674 // google wants its own keys
675 if(options & RRDR_OPTION_OBJECTSROWS)
676 options &= ~RRDR_OPTION_OBJECTSROWS;
681 if((options & RRDR_OPTION_SECONDS) || (options & RRDR_OPTION_MILLISECONDS)) {
682 dates = JSON_DATES_TIMESTAMP;
686 dates = JSON_DATES_JS;
689 if( options & RRDR_OPTION_OBJECTSROWS )
690 snprintf(pre_date, 100, " { ");
692 snprintf(pre_date, 100, " [ ");
693 snprintf(pre_label, 100, ", \"");
694 snprintf(post_label, 100, "\"");
695 snprintf(pre_value, 100, ", ");
696 if( options & RRDR_OPTION_OBJECTSROWS )
697 snprintf(post_line, 100, "}");
699 snprintf(post_line, 100, "]");
700 snprintf(data_begin, 100, "],\n %sdata%s:\n [\n", kq, kq);
701 snprintf(finish, 100, "\n ]\n}\n");
703 buffer_sprintf(wb, "{\n %slabels%s: [", kq, kq);
704 buffer_sprintf(wb, "%stime%s", sq, sq);
707 // -------------------------------------------------------------------------
708 // print the JSON header
713 // print the header lines
714 for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
715 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
716 if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
718 buffer_strcat(wb, pre_label);
719 buffer_strcat(wb, rd->name);
720 buffer_strcat(wb, post_label);
724 buffer_strcat(wb, pre_label);
725 buffer_strcat(wb, "no data");
726 buffer_strcat(wb, post_label);
729 // print the begin of row data
730 buffer_strcat(wb, data_begin);
732 // if all dimensions are hidden, print a null
734 buffer_strcat(wb, finish);
738 long start = 0, end = rrdr_rows(r), step = 1;
739 if((options & RRDR_OPTION_REVERSED)) {
740 start = rrdr_rows(r) - 1;
745 // for each line in the array
746 for(i = start; i != end ;i += step) {
747 calculated_number *cn = &r->v[ i * r->d ];
748 uint8_t *co = &r->o[ i * r->d ];
750 time_t now = r->t[i];
752 if(dates == JSON_DATES_JS) {
753 // generate the local date time
754 struct tm tmbuf, *tm = localtime_r(&now, &tmbuf);
755 if(!tm) { error("localtime_r() failed."); continue; }
757 if(likely(i != start)) buffer_strcat(wb, ",\n");
758 buffer_strcat(wb, pre_date);
760 if( options & RRDR_OPTION_OBJECTSROWS )
761 buffer_sprintf(wb, "%stime%s: ", kq, kq);
764 buffer_strcat(wb, "new ");
766 buffer_jsdate(wb, tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
768 buffer_strcat(wb, post_date);
770 if(row_annotations) {
771 // google supports one annotation per row
772 int annotation_found = 0;
773 for(c = 0, rd = r->st->dimensions; rd ;c++, rd = rd->next) {
774 if(co[c] & RRDR_RESET) {
775 buffer_strcat(wb, overflow_annotation);
776 annotation_found = 1;
780 if(!annotation_found)
781 buffer_strcat(wb, normal_annotation);
785 // print the timestamp of the line
786 if(likely(i != start)) buffer_strcat(wb, ",\n");
787 buffer_strcat(wb, pre_date);
789 if( options & RRDR_OPTION_OBJECTSROWS )
790 buffer_sprintf(wb, "%stime%s: ", kq, kq);
792 buffer_rrd_value(wb, (calculated_number)r->t[i]);
794 if(options & RRDR_OPTION_MILLISECONDS) buffer_strcat(wb, "000");
796 buffer_strcat(wb, post_date);
799 // for each dimension
800 for(c = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
801 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
802 if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
804 calculated_number n = cn[c];
806 buffer_strcat(wb, pre_value);
808 if( options & RRDR_OPTION_OBJECTSROWS )
809 buffer_sprintf(wb, "%s%s%s: ", kq, rd->name, kq);
811 if(co[c] & RRDR_EMPTY) {
812 if(options & RRDR_OPTION_NULL2ZERO)
813 buffer_strcat(wb, "0");
815 buffer_strcat(wb, "null");
817 else if((options & RRDR_OPTION_ABSOLUTE))
818 buffer_rrd_value(wb, (n<0)?-n:n);
820 buffer_rrd_value(wb, n);
822 buffer_strcat(wb, post_value);
825 buffer_strcat(wb, post_line);
828 buffer_strcat(wb, finish);
829 //info("RRD2JSON(): %s: END", r->st->id);
832 static void rrdr2csv(RRDR *r, BUFFER *wb, uint32_t options, const char *startline, const char *separator, const char *endline)
834 //info("RRD2CSV(): %s: BEGIN", r->st->id);
838 // print the csv header
839 for(c = 0, i = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
840 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
841 if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
844 buffer_strcat(wb, startline);
845 buffer_strcat(wb, "time");
847 buffer_strcat(wb, separator);
848 buffer_strcat(wb, d->name);
851 buffer_strcat(wb, endline);
854 // no dimensions present
858 long start = 0, end = rrdr_rows(r), step = 1;
859 if((options & RRDR_OPTION_REVERSED)) {
860 start = rrdr_rows(r) - 1;
865 // for each line in the array
866 for(i = start; i != end ;i += step) {
867 calculated_number *cn = &r->v[ i * r->d ];
868 uint8_t *co = &r->o[ i * r->d ];
870 buffer_strcat(wb, startline);
872 time_t now = r->t[i];
874 if((options & RRDR_OPTION_SECONDS) || (options & RRDR_OPTION_MILLISECONDS)) {
875 // print the timestamp of the line
876 buffer_rrd_value(wb, (calculated_number)now);
878 if(options & RRDR_OPTION_MILLISECONDS) buffer_strcat(wb, "000");
881 // generate the local date time
882 struct tm tmbuf, *tm = localtime_r(&now, &tmbuf);
883 if(!tm) { error("localtime() failed."); continue; }
884 buffer_date(wb, tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
887 // for each dimension
888 for(c = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
889 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
890 if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
892 buffer_strcat(wb, separator);
894 calculated_number n = cn[c];
896 if(co[c] & RRDR_EMPTY) {
897 if(options & RRDR_OPTION_NULL2ZERO)
898 buffer_strcat(wb, "0");
900 buffer_strcat(wb, "null");
902 else if((options & RRDR_OPTION_ABSOLUTE))
903 buffer_rrd_value(wb, (n<0)?-n:n);
905 buffer_rrd_value(wb, n);
908 buffer_strcat(wb, endline);
910 //info("RRD2CSV(): %s: END", r->st->id);
913 static void rrdr2ssv(RRDR *r, BUFFER *wb, uint32_t options, const char *prefix, const char *separator, const char *suffix)
915 //info("RRD2SSV(): %s: BEGIN", r->st->id);
919 buffer_strcat(wb, prefix);
920 long start = 0, end = rrdr_rows(r), step = 1;
921 if((options & RRDR_OPTION_REVERSED)) {
922 start = rrdr_rows(r) - 1;
927 // for each line in the array
928 for(i = start; i != end ;i += step) {
930 calculated_number *cn = &r->v[ i * r->d ];
931 uint8_t *co = &r->o[ i * r->d ];
933 calculated_number sum = 0, min = 0, max = 0;
934 int all_null = 1, init = 1;
936 // for each dimension
937 for(c = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
938 if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
939 if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
941 calculated_number n = cn[c];
955 if(likely(!(co[c] & RRDR_EMPTY))) {
957 if((options & RRDR_OPTION_ABSOLUTE) && n < 0) n = -n;
965 if(likely(i != start))
966 buffer_strcat(wb, separator);
969 if(options & RRDR_OPTION_NULL2ZERO)
970 buffer_strcat(wb, "0");
972 buffer_strcat(wb, "null");
974 else if(options & RRDR_OPTION_MIN2MAX)
975 buffer_rrd_value(wb, max - min);
977 buffer_rrd_value(wb, sum);
979 buffer_strcat(wb, suffix);
980 //info("RRD2SSV(): %s: END", r->st->id);
983 inline static calculated_number *rrdr_line_values(RRDR *r)
985 return &r->v[ r->c * r->d ];
988 inline static uint8_t *rrdr_line_options(RRDR *r)
990 return &r->o[ r->c * r->d ];
993 inline static int rrdr_line_init(RRDR *r, time_t t)
997 if(unlikely(r->c >= r->n)) {
998 error("requested to step above RRDR size for chart %s", r->st->name);
1008 inline static void rrdr_lock_rrdset(RRDR *r) {
1010 error("NULL value given!");
1014 pthread_rwlock_rdlock(&r->st->rwlock);
1018 inline static void rrdr_unlock_rrdset(RRDR *r) {
1020 error("NULL value given!");
1024 if(likely(r->has_st_lock)) {
1025 pthread_rwlock_unlock(&r->st->rwlock);
1030 inline static void rrdr_free(RRDR *r)
1033 error("NULL value given!");
1037 rrdr_unlock_rrdset(r);
1038 if(likely(r->t)) free(r->t);
1039 if(likely(r->v)) free(r->v);
1040 if(likely(r->o)) free(r->o);
1041 if(likely(r->od)) free(r->od);
1045 inline void rrdr_done(RRDR *r)
1051 static RRDR *rrdr_create(RRDSET *st, int n)
1054 error("NULL value given!");
1058 RRDR *r = calloc(1, sizeof(RRDR));
1059 if(unlikely(!r)) goto cleanup;
1063 rrdr_lock_rrdset(r);
1066 for(rd = st->dimensions ; rd ; rd = rd->next) r->d++;
1070 r->t = malloc(n * sizeof(time_t));
1071 if(unlikely(!r->t)) goto cleanup;
1073 r->v = malloc(n * r->d * sizeof(calculated_number));
1074 if(unlikely(!r->v)) goto cleanup;
1076 r->o = malloc(n * r->d * sizeof(uint8_t));
1077 if(unlikely(!r->o)) goto cleanup;
1079 r->od = malloc(r->d * sizeof(uint8_t));
1080 if(unlikely(!r->od)) goto cleanup;
1085 r->update_every = 1;
1090 error("Cannot allocate RRDR memory for %d entries", n);
1091 if(likely(r)) rrdr_free(r);
1095 RRDR *rrd2rrdr(RRDSET *st, long points, long long after, long long before, int group_method)
1097 int debug = st->debug;
1099 time_t first_entry_t = rrdset_first_entry_t(st);
1100 time_t last_entry_t = rrdset_last_entry_t(st);
1102 if(before == 0 && after == 0) {
1103 before = last_entry_t;
1104 after = first_entry_t;
1107 // allow relative for before and after
1108 if(before <= st->update_every * st->entries)
1109 before = last_entry_t + before;
1111 if(after <= st->update_every * st->entries)
1112 after = last_entry_t + after;
1114 // make sure they are within our timeframe
1115 if(before > last_entry_t) before = last_entry_t;
1116 if(before < first_entry_t) before = first_entry_t;
1118 if(after > last_entry_t) after = last_entry_t;
1119 if(after < first_entry_t) after = first_entry_t;
1121 // check if they are upside down
1122 if(after > before) {
1123 time_t tmp = before;
1128 // the duration of the chart
1129 time_t duration = before - after;
1130 long available_points = duration / st->update_every;
1132 if(duration <= 0 || available_points <= 0)
1133 return rrdr_create(st, 1);
1135 // check the wanted points
1136 if(points < 0) points = -points;
1137 if(points > available_points) points = available_points;
1138 if(points == 0) points = available_points;
1140 // calculate proper grouping of source data
1141 long group = available_points / points;
1142 if(group <= 0) group = 1;
1144 // round group to the closest integer
1145 if(available_points % points > points / 2) group++;
1147 time_t after_new = after - (after % (group * st->update_every));
1148 time_t before_new = before - (before % (group * st->update_every));
1149 long points_new = (before_new - after_new) / st->update_every / group;
1151 // find the starting and ending slots in our round robin db
1152 long start_at_slot = rrdset_time2slot(st, before_new),
1153 stop_at_slot = rrdset_time2slot(st, after_new);
1155 #ifdef NETDATA_INTERNAL_CHECKS
1156 if(after_new < first_entry_t) {
1157 error("after_new %u is too small, minimum %u", after_new, first_entry_t);
1159 if(after_new > last_entry_t) {
1160 error("after_new %u is too big, maximum %u", after_new, last_entry_t);
1162 if(before_new < first_entry_t) {
1163 error("before_new %u is too small, minimum %u", before_new, first_entry_t);
1165 if(before_new > last_entry_t) {
1166 error("before_new %u is too big, maximum %u", before_new, last_entry_t);
1168 if(start_at_slot < 0 || start_at_slot >= st->entries) {
1169 error("start_at_slot is invalid %ld, expected %ld to %ld", start_at_slot, 0, st->entries - 1);
1171 if(stop_at_slot < 0 || stop_at_slot >= st->entries) {
1172 error("stop_at_slot is invalid %ld, expected %ld to %ld", stop_at_slot, 0, st->entries - 1);
1174 if(points_new > (before_new - after_new) / group / st->update_every + 1) {
1175 error("points_new %ld is more than points %ld", points_new, (before_new - after_new) / group / st->update_every + 1);
1179 //info("RRD2RRDR(): %s: wanted %ld points, got %ld - group=%ld, wanted duration=%u, got %u - wanted %ld - %ld, got %ld - %ld", st->id, points, points_new, group, before - after, before_new - after_new, after, before, after_new, before_new);
1182 before = before_new;
1183 duration = before - after;
1184 points = points_new;
1187 // before = the end time of the calculation
1188 // after = the start time of the calculation
1189 // duration = the duration of the calculation
1190 // group = the number of source points to aggregate / group together
1191 // method = the method of grouping source points
1192 // points = the number of points to generate
1195 // -------------------------------------------------------------------------
1196 // initialize our result set
1198 RRDR *r = rrdr_create(st, points);
1202 // find how many dimensions we have
1203 long dimensions = r->d;
1206 // -------------------------------------------------------------------------
1207 // checks for debugging
1209 if(debug) debug(D_RRD_STATS, "INFO %s first_t: %lu, last_t: %lu, all_duration: %lu, after: %lu, before: %lu, duration: %lu, points: %ld, group: %ld"
1213 , last_entry_t - first_entry_t
1222 // -------------------------------------------------------------------------
1223 // temp arrays for keeping values per dimension
1225 calculated_number group_values[dimensions]; // keep sums when grouping
1226 long group_counts[dimensions]; // keep the number of values added to group_values
1227 uint8_t group_options[dimensions];
1228 uint8_t found_non_zero[dimensions];
1234 for( rd = st->dimensions, c = 0 ; rd && c < dimensions ; rd = rd->next, c++) {
1235 group_values[c] = 0;
1236 group_counts[c] = 0;
1237 group_options[c] = 0;
1238 found_non_zero[c] = 0;
1242 // -------------------------------------------------------------------------
1245 time_t now = rrdset_slot2time(st, start_at_slot),
1246 dt = st->update_every,
1249 if(unlikely(debug)) debug(D_RRD_STATS, "BEGIN %s after_t: %lu (stop_at_t: %ld), before_t: %lu (start_at_t: %ld), start_t(now): %lu, current_entry: %ld, entries: %ld"
1261 r->update_every = group * st->update_every;
1265 //info("RRD2RRDR(): %s: STARTING", st->id);
1267 long slot = start_at_slot, counter = 0, stop_now = 0, added = 0, group_count = 0, add_this = 0;
1268 for(; !stop_now ; now -= dt, slot--, counter++) {
1269 if(unlikely(slot < 0)) slot = st->entries - 1;
1270 if(unlikely(slot == stop_at_slot)) stop_now = counter;
1272 if(unlikely(debug)) debug(D_RRD_STATS, "ROW %s slot: %ld, entries_counter: %ld, group_count: %ld, added: %ld, now: %lu, %s %s"
1279 , (group_count + 1 == group)?"PRINT":" - "
1280 , (now >= after && now <= before)?"RANGE":" - "
1283 // make sure we return data in the proper time range
1284 if(unlikely(now > before)) continue;
1285 if(unlikely(now < after)) break;
1287 if(unlikely(group_count == 0)) {
1288 group_start_t = now;
1292 if(unlikely(group_count == group)) {
1293 if(unlikely(added >= points)) break;
1297 // do the calculations
1298 for(rd = st->dimensions, c = 0 ; rd && c < dimensions ; rd = rd->next, c++) {
1299 storage_number n = rd->values[slot];
1300 if(unlikely(!does_storage_number_exist(n))) continue;
1304 calculated_number value = unpack_storage_number(n);
1305 if(likely(value != 0.0)) {
1306 group_options[c] |= RRDR_NONZERO;
1307 found_non_zero[c] = 1;
1310 if(unlikely(did_storage_number_reset(n)))
1311 group_options[c] |= RRDR_RESET;
1313 switch(group_method) {
1315 if(unlikely(abs(value) > abs(group_values[c])))
1316 group_values[c] = value;
1322 group_values[c] += value;
1328 if(unlikely(add_this)) {
1329 if(unlikely(!rrdr_line_init(r, group_start_t))) break;
1333 calculated_number *cn = rrdr_line_values(r);
1334 uint8_t *co = rrdr_line_options(r);
1336 for(rd = st->dimensions, c = 0 ; likely(rd && c < dimensions) ; rd = rd->next, c++) {
1338 // update the dimension options
1339 if(likely(found_non_zero[c])) r->od[c] |= RRDR_NONZERO;
1340 if(unlikely(rd->flags & RRDDIM_FLAG_HIDDEN)) r->od[c] |= RRDR_HIDDEN;
1342 // store the specific point options
1343 co[c] = group_options[c];
1346 if(unlikely(group_counts[c] == 0)) {
1348 co[c] |= RRDR_EMPTY;
1350 else if(unlikely(group_method == GROUP_AVERAGE)) {
1351 cn[c] = group_values[c] / group_counts[c];
1354 cn[c] = group_values[c];
1357 if(cn[c] < r->min) r->min = cn[c];
1358 if(cn[c] > r->max) r->max = cn[c];
1360 // reset them for the next loop
1361 group_values[c] = 0;
1362 group_counts[c] = 0;
1363 group_options[c] = 0;
1373 //info("RRD2RRDR(): %s: END %ld loops made, %ld points generated", st->id, counter, rrdr_rows(r));
1374 //error("SHIFT: %s: wanted %ld points, got %ld", st->id, points, rrdr_rows(r));
1378 int rrd2format(RRDSET *st, BUFFER *wb, BUFFER *dimensions, uint32_t format, long points, long long after, long long before, int group_method, uint32_t options, time_t *latest_timestamp)
1380 RRDR *r = rrd2rrdr(st, points, after, before, group_method);
1382 buffer_strcat(wb, "Cannot generate output with these parameters on this chart.");
1386 options = rrdr_check_options(r, options);
1389 rrdr_disable_not_selected_dimensions(r, buffer_tostring(dimensions));
1391 if(latest_timestamp && rrdr_rows(r) > 0)
1392 *latest_timestamp = r->before;
1395 case DATASOURCE_SSV:
1396 if(options & RRDR_OPTION_JSON_WRAP) {
1397 wb->contenttype = CT_APPLICATION_JSON;
1398 rrdr_json_wrapper_begin(r, wb, format, options, 1);
1399 rrdr2ssv(r, wb, options, "", " ", "");
1400 rrdr_json_wrapper_end(r, wb, format, options, 1);
1403 wb->contenttype = CT_TEXT_PLAIN;
1404 rrdr2ssv(r, wb, options, "", " ", "");
1408 case DATASOURCE_SSV_COMMA:
1409 if(options & RRDR_OPTION_JSON_WRAP) {
1410 wb->contenttype = CT_APPLICATION_JSON;
1411 rrdr_json_wrapper_begin(r, wb, format, options, 1);
1412 rrdr2ssv(r, wb, options, "", ",", "");
1413 rrdr_json_wrapper_end(r, wb, format, options, 1);
1416 wb->contenttype = CT_TEXT_PLAIN;
1417 rrdr2ssv(r, wb, options, "", ",", "");
1421 case DATASOURCE_JS_ARRAY:
1422 if(options & RRDR_OPTION_JSON_WRAP) {
1423 wb->contenttype = CT_APPLICATION_JSON;
1424 rrdr_json_wrapper_begin(r, wb, format, options, 0);
1425 rrdr2ssv(r, wb, options, "[", ",", "]");
1426 rrdr_json_wrapper_end(r, wb, format, options, 0);
1429 wb->contenttype = CT_APPLICATION_JSON;
1430 rrdr2ssv(r, wb, options, "[", ",", "]");
1434 case DATASOURCE_CSV:
1435 if(options & RRDR_OPTION_JSON_WRAP) {
1436 wb->contenttype = CT_APPLICATION_JSON;
1437 rrdr_json_wrapper_begin(r, wb, format, options, 1);
1438 rrdr2csv(r, wb, options, "", ",", "\\n");
1439 rrdr_json_wrapper_end(r, wb, format, options, 1);
1442 wb->contenttype = CT_TEXT_PLAIN;
1443 rrdr2csv(r, wb, options, "", ",", "\r\n");
1447 case DATASOURCE_TSV:
1448 if(options & RRDR_OPTION_JSON_WRAP) {
1449 wb->contenttype = CT_APPLICATION_JSON;
1450 rrdr_json_wrapper_begin(r, wb, format, options, 1);
1451 rrdr2csv(r, wb, options, "", "\t", "\\n");
1452 rrdr_json_wrapper_end(r, wb, format, options, 1);
1455 wb->contenttype = CT_TEXT_PLAIN;
1456 rrdr2csv(r, wb, options, "", "\t", "\r\n");
1460 case DATASOURCE_HTML:
1461 if(options & RRDR_OPTION_JSON_WRAP) {
1462 wb->contenttype = CT_APPLICATION_JSON;
1463 rrdr_json_wrapper_begin(r, wb, format, options, 1);
1464 buffer_strcat(wb, "<html>\\n<center>\\n<table border=\\\"0\\\" cellpadding=\\\"5\\\" cellspacing=\\\"5\\\">\\n");
1465 rrdr2csv(r, wb, options, "<tr><td>", "</td><td>", "</td></tr>\\n");
1466 buffer_strcat(wb, "</table>\\n</center>\\n</html>\\n");
1467 rrdr_json_wrapper_end(r, wb, format, options, 1);
1470 wb->contenttype = CT_TEXT_HTML;
1471 buffer_strcat(wb, "<html>\n<center>\n<table border=\"0\" cellpadding=\"5\" cellspacing=\"5\">\n");
1472 rrdr2csv(r, wb, options, "<tr><td>", "</td><td>", "</td></tr>\n");
1473 buffer_strcat(wb, "</table>\n</center>\n</html>\n");
1477 case DATASOURCE_DATATABLE_JSONP:
1478 wb->contenttype = CT_APPLICATION_X_JAVASCRIPT;
1480 if(options & RRDR_OPTION_JSON_WRAP)
1481 rrdr_json_wrapper_begin(r, wb, format, options, 0);
1483 rrdr2json(r, wb, options, 1);
1485 if(options & RRDR_OPTION_JSON_WRAP)
1486 rrdr_json_wrapper_end(r, wb, format, options, 0);
1489 case DATASOURCE_DATATABLE_JSON:
1490 wb->contenttype = CT_APPLICATION_JSON;
1492 if(options & RRDR_OPTION_JSON_WRAP)
1493 rrdr_json_wrapper_begin(r, wb, format, options, 0);
1495 rrdr2json(r, wb, options, 1);
1497 if(options & RRDR_OPTION_JSON_WRAP)
1498 rrdr_json_wrapper_end(r, wb, format, options, 0);
1501 case DATASOURCE_JSONP:
1502 wb->contenttype = CT_APPLICATION_X_JAVASCRIPT;
1503 if(options & RRDR_OPTION_JSON_WRAP)
1504 rrdr_json_wrapper_begin(r, wb, format, options, 0);
1506 rrdr2json(r, wb, options, 0);
1508 if(options & RRDR_OPTION_JSON_WRAP)
1509 rrdr_json_wrapper_end(r, wb, format, options, 0);
1512 case DATASOURCE_JSON:
1514 wb->contenttype = CT_APPLICATION_JSON;
1516 if(options & RRDR_OPTION_JSON_WRAP)
1517 rrdr_json_wrapper_begin(r, wb, format, options, 0);
1519 rrdr2json(r, wb, options, 0);
1521 if(options & RRDR_OPTION_JSON_WRAP)
1522 rrdr_json_wrapper_end(r, wb, format, options, 0);
1530 unsigned long rrd_stats_json(int type, RRDSET *st, BUFFER *wb, int points, int group, int group_method, time_t after, time_t before, int only_non_zero)
1533 pthread_rwlock_rdlock(&st->rwlock);
1536 // -------------------------------------------------------------------------
1537 // switch from JSON to google JSON
1542 case DATASOURCE_DATATABLE_JSON:
1543 case DATASOURCE_DATATABLE_JSONP:
1548 case DATASOURCE_JSON:
1554 // -------------------------------------------------------------------------
1555 // validate the parameters
1557 if(points < 1) points = 1;
1558 if(group < 1) group = 1;
1560 if(before == 0 || before > rrdset_last_entry_t(st)) before = rrdset_last_entry_t(st);
1561 if(after == 0 || after < rrdset_first_entry_t(st)) after = rrdset_first_entry_t(st);
1565 // our return value (the last timestamp printed)
1566 // this is required to detect re-transmit in google JSONP
1567 time_t last_timestamp = 0;
1570 // -------------------------------------------------------------------------
1571 // find how many dimensions we have
1575 for( rd = st->dimensions ; rd ; rd = rd->next) dimensions++;
1577 pthread_rwlock_unlock(&st->rwlock);
1578 buffer_strcat(wb, "No dimensions yet.");
1583 // -------------------------------------------------------------------------
1584 // prepare various strings, to speed up the loop
1586 char overflow_annotation[201]; snprintf(overflow_annotation, 200, ",{%sv%s:%sRESET OR OVERFLOW%s},{%sv%s:%sThe counters have been wrapped.%s}", kq, kq, sq, sq, kq, kq, sq, sq);
1587 char normal_annotation[201]; snprintf(normal_annotation, 200, ",{%sv%s:null},{%sv%s:null}", kq, kq, kq, kq);
1588 char pre_date[51]; snprintf(pre_date, 50, " {%sc%s:[{%sv%s:%s", kq, kq, kq, kq, sq);
1589 char post_date[21]; snprintf(post_date, 20, "%s}", sq);
1590 char pre_value[21]; snprintf(pre_value, 20, ",{%sv%s:", kq, kq);
1591 char post_value[21]; snprintf(post_value, 20, "}");
1594 // -------------------------------------------------------------------------
1595 // checks for debugging
1598 debug(D_RRD_STATS, "%s first_entry_t = %lu, last_entry_t = %lu, duration = %lu, after = %lu, before = %lu, duration = %lu, entries_to_show = %lu, group = %lu"
1600 , rrdset_first_entry_t(st)
1601 , rrdset_last_entry_t(st)
1602 , rrdset_last_entry_t(st) - rrdset_first_entry_t(st)
1611 debug(D_RRD_STATS, "WARNING: %s The newest value in the database (%lu) is earlier than the oldest (%lu)", st->name, before, after);
1613 if((before - after) > st->entries * st->update_every)
1614 debug(D_RRD_STATS, "WARNING: %s The time difference between the oldest and the newest entries (%lu) is higher than the capacity of the database (%lu)", st->name, before - after, st->entries * st->update_every);
1618 // -------------------------------------------------------------------------
1619 // temp arrays for keeping values per dimension
1621 calculated_number group_values[dimensions]; // keep sums when grouping
1622 int print_hidden[dimensions]; // keep hidden flags
1623 int found_non_zero[dimensions];
1624 int found_non_existing[dimensions];
1627 for( rd = st->dimensions, c = 0 ; rd && c < dimensions ; rd = rd->next, c++) {
1628 group_values[c] = 0;
1629 print_hidden[c] = (rd->flags & RRDDIM_FLAG_HIDDEN)?1:0;
1630 found_non_zero[c] = 0;
1631 found_non_existing[c] = 0;
1635 // error("OLD: points=%d after=%d before=%d group=%d, duration=%d", entries_to_show, before - (st->update_every * group * entries_to_show), before, group, before - after + 1);
1636 // rrd2array(st, entries_to_show, before - (st->update_every * group * entries_to_show), before, group_method, only_non_zero);
1637 // rrd2rrdr(st, entries_to_show, before - (st->update_every * group * entries_to_show), before, group_method);
1639 // -------------------------------------------------------------------------
1640 // remove dimensions that contain only zeros
1643 if(only_non_zero) max_loop = 2;
1645 for(; max_loop ; max_loop--) {
1647 // -------------------------------------------------------------------------
1648 // print the JSON header
1650 buffer_sprintf(wb, "{\n %scols%s:\n [\n", kq, kq);
1651 buffer_sprintf(wb, " {%sid%s:%s%s,%slabel%s:%stime%s,%spattern%s:%s%s,%stype%s:%sdatetime%s},\n", kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq);
1652 buffer_sprintf(wb, " {%sid%s:%s%s,%slabel%s:%s%s,%spattern%s:%s%s,%stype%s:%sstring%s,%sp%s:{%srole%s:%sannotation%s}},\n", kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, kq, kq, sq, sq);
1653 buffer_sprintf(wb, " {%sid%s:%s%s,%slabel%s:%s%s,%spattern%s:%s%s,%stype%s:%sstring%s,%sp%s:{%srole%s:%sannotationText%s}}", kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, kq, kq, sq, sq);
1655 // print the header for each dimension
1656 // and update the print_hidden array for the dimensions that should be hidden
1658 for( rd = st->dimensions, c = 0 ; rd && c < dimensions ; rd = rd->next, c++) {
1659 if(!print_hidden[c]) {
1661 buffer_sprintf(wb, ",\n {%sid%s:%s%s,%slabel%s:%s%s%s,%spattern%s:%s%s,%stype%s:%snumber%s}", kq, kq, sq, sq, kq, kq, sq, rd->name, sq, kq, kq, sq, sq, kq, kq, sq, sq);
1665 buffer_sprintf(wb, ",\n {%sid%s:%s%s,%slabel%s:%s%s%s,%spattern%s:%s%s,%stype%s:%snumber%s}", kq, kq, sq, sq, kq, kq, sq, "no data", sq, kq, kq, sq, sq, kq, kq, sq, sq);
1668 // print the begin of row data
1669 buffer_sprintf(wb, "\n ],\n %srows%s:\n [\n", kq, kq);
1672 // -------------------------------------------------------------------------
1675 int annotate_reset = 0;
1676 int annotation_count = 0;
1678 long t = rrdset_time2slot(st, before),
1679 stop_at_t = rrdset_time2slot(st, after),
1684 time_t now = rrdset_slot2time(st, t),
1685 dt = st->update_every;
1687 long count = 0, printed = 0, group_count = 0;
1690 if(st->debug) debug(D_RRD_STATS, "%s: REQUEST after:%lu before:%lu, points:%d, group:%d, CHART cur:%ld first: %lu last:%lu, CALC start_t:%ld, stop_t:%ld"
1697 , rrdset_first_entry_t(st)
1698 , rrdset_last_entry_t(st)
1704 for(; !stop_now ; now -= dt, t--, counter++) {
1705 if(t < 0) t = st->entries - 1;
1706 if(t == stop_at_t) stop_now = counter;
1710 if(st->debug) debug(D_RRD_STATS, "%s t = %ld, count = %ld, group_count = %ld, printed = %ld, now = %lu, %s %s"
1717 , (group_count + 1 == group)?"PRINT":" - "
1718 , (now >= after && now <= before)?"RANGE":" - "
1722 // make sure we return data in the proper time range
1723 if(now > before) continue;
1724 if(now < after) break;
1726 //if(rrdset_slot2time(st, t) != now)
1727 // error("%s: slot=%ld, now=%ld, slot2time=%ld, diff=%ld, last_entry_t=%ld, rrdset_last_slot=%ld", st->id, t, now, rrdset_slot2time(st,t), now - rrdset_slot2time(st,t), rrdset_last_entry_t(st), rrdset_last_slot(st));
1732 // check if we have to print this now
1733 if(group_count == group) {
1734 if(printed >= points) {
1735 // debug(D_RRD_STATS, "Already printed all rows. Stopping.");
1739 // generate the local date time
1740 struct tm tmbuf, *tm = localtime_r(&now, &tmbuf);
1741 if(!tm) { error("localtime() failed."); continue; }
1742 if(now > last_timestamp) last_timestamp = now;
1744 if(printed) buffer_strcat(wb, "]},\n");
1745 buffer_strcat(wb, pre_date);
1746 buffer_jsdate(wb, tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
1747 buffer_strcat(wb, post_date);
1752 // do the calculations
1753 for(rd = st->dimensions, c = 0 ; rd && c < dimensions ; rd = rd->next, c++) {
1754 storage_number n = rd->values[t];
1755 calculated_number value = unpack_storage_number(n);
1757 if(!does_storage_number_exist(n)) {
1759 found_non_existing[c]++;
1761 if(did_storage_number_reset(n)) annotate_reset = 1;
1763 switch(group_method) {
1765 if(abs(value) > abs(group_values[c])) group_values[c] = value;
1769 group_values[c] += value;
1774 group_values[c] += value;
1775 if(print_this) group_values[c] /= ( group_count - found_non_existing[c] );
1781 if(annotate_reset) {
1783 buffer_strcat(wb, overflow_annotation);
1787 buffer_strcat(wb, normal_annotation);
1790 for(c = 0 ; c < dimensions ; c++) {
1791 if(found_non_existing[c] == group_count) {
1792 // all entries are non-existing
1794 buffer_strcat(wb, pre_value);
1795 buffer_strcat(wb, "null");
1796 buffer_strcat(wb, post_value);
1798 else if(!print_hidden[c]) {
1800 buffer_strcat(wb, pre_value);
1801 buffer_rrd_value(wb, group_values[c]);
1802 buffer_strcat(wb, post_value);
1804 if(group_values[c]) found_non_zero[c]++;
1807 // reset them for the next loop
1808 group_values[c] = 0;
1809 found_non_existing[c] = 0;
1812 // if all dimensions are hidden, print a null
1814 buffer_strcat(wb, pre_value);
1815 buffer_strcat(wb, "null");
1816 buffer_strcat(wb, post_value);
1824 if(printed) buffer_strcat(wb, "]}");
1825 buffer_strcat(wb, "\n ]\n}\n");
1827 if(only_non_zero && max_loop > 1) {
1829 for(rd = st->dimensions, c = 0 ; rd && c < dimensions ; rd = rd->next, c++) {
1830 group_values[c] = 0;
1831 found_non_existing[c] = 0;
1833 if(!print_hidden[c] && !found_non_zero[c]) {
1835 print_hidden[c] = 1;
1839 if(changed) buffer_flush(wb);
1846 debug(D_RRD_STATS, "RRD_STATS_JSON: %s total %ld bytes", st->name, wb->len);
1848 pthread_rwlock_unlock(&st->rwlock);
1849 return last_timestamp;