3 #define RRD_TYPE_TC "tc"
5 // ----------------------------------------------------------------------------
7 // this requires the script plugins.d/tc-qos-helper.sh
9 #define TC_LINE_MAX 1024
30 unsigned long long bytes;
31 unsigned long long packets;
32 unsigned long long dropped;
33 unsigned long long overlimits;
34 unsigned long long requeues;
35 unsigned long long lended;
36 unsigned long long borrowed;
37 unsigned long long giants;
38 unsigned long long tokens;
39 unsigned long long ctokens;
48 char updated; // updated bytes
49 int unupdated; // the number of times, this has been found un-updated
51 struct tc_class *next;
52 struct tc_class *prev;
73 char enabled_all_classes_qdiscs;
81 avl_tree classes_index;
83 struct tc_class *classes;
85 struct tc_device *next;
86 struct tc_device *prev;
90 struct tc_device *tc_device_root = NULL;
92 // ----------------------------------------------------------------------------
95 static int tc_device_compare(void* a, void* b) {
96 if(((struct tc_device *)a)->hash < ((struct tc_device *)b)->hash) return -1;
97 else if(((struct tc_device *)a)->hash > ((struct tc_device *)b)->hash) return 1;
98 else return strcmp(((struct tc_device *)a)->id, ((struct tc_device *)b)->id);
101 avl_tree tc_device_root_index = {
106 #define tc_device_index_add(st) (struct tc_device *)avl_insert(&tc_device_root_index, (avl *)(st))
107 #define tc_device_index_del(st) (struct tc_device *)avl_remove(&tc_device_root_index, (avl *)(st))
109 static inline struct tc_device *tc_device_index_find(const char *id, uint32_t hash) {
110 struct tc_device tmp;
112 tmp.hash = (hash)?hash:simple_hash(tmp.id);
114 return (struct tc_device *)avl_search(&(tc_device_root_index), (avl *)&tmp);
118 // ----------------------------------------------------------------------------
121 static int tc_class_compare(void* a, void* b) {
122 if(((struct tc_class *)a)->hash < ((struct tc_class *)b)->hash) return -1;
123 else if(((struct tc_class *)a)->hash > ((struct tc_class *)b)->hash) return 1;
124 else return strcmp(((struct tc_class *)a)->id, ((struct tc_class *)b)->id);
127 #define tc_class_index_add(st, rd) (struct tc_class *)avl_insert(&((st)->classes_index), (avl *)(rd))
128 #define tc_class_index_del(st, rd) (struct tc_class *)avl_remove(&((st)->classes_index), (avl *)(rd))
130 static inline struct tc_class *tc_class_index_find(struct tc_device *st, const char *id, uint32_t hash) {
133 tmp.hash = (hash)?hash:simple_hash(tmp.id);
135 return (struct tc_class *)avl_search(&(st->classes_index), (avl *) &tmp);
138 // ----------------------------------------------------------------------------
140 static inline void tc_class_free(struct tc_device *n, struct tc_class *c) {
141 if(c == n->classes) {
143 n->classes = c->next;
145 n->classes = c->prev;
147 if(c->next) c->next->prev = c->prev;
148 if(c->prev) c->prev->next = c->next;
150 debug(D_TC_LOOP, "Removing from device '%s' class '%s', parentid '%s', leafid '%s', unused=%d", n->id, c->id, c->parentid?c->parentid:"", c->leafid?c->leafid:"", c->unupdated);
152 if(unlikely(tc_class_index_del(n, c) != c))
153 error("plugin_tc: INTERNAL ERROR: attempt remove class '%s' from device '%s': removed a different calls", c->id, n->id);
162 static inline void tc_device_classes_cleanup(struct tc_device *d) {
163 static int cleanup_every = 999;
165 if(unlikely(cleanup_every > 0)) {
166 cleanup_every = (int) config_get_number("plugin:tc", "cleanup unused classes every", 120);
167 if(cleanup_every < 0) cleanup_every = -cleanup_every;
171 d->family_updated = 0;
173 struct tc_class *c = d->classes;
175 if(unlikely(cleanup_every && c->unupdated >= cleanup_every)) {
176 struct tc_class *nc = c->next;
189 static inline void tc_device_commit(struct tc_device *d) {
190 static int enable_new_interfaces = -1, enable_bytes = -1, enable_packets = -1, enable_dropped = -1, enable_tokens = -1, enable_ctokens = -1, enabled_all_classes_qdiscs = -1;
192 if(unlikely(enable_new_interfaces == -1)) {
193 enable_new_interfaces = config_get_boolean_ondemand("plugin:tc", "enable new interfaces detected at runtime", CONFIG_ONDEMAND_YES);
194 enable_bytes = config_get_boolean_ondemand("plugin:tc", "enable traffic charts for all interfaces", CONFIG_ONDEMAND_ONDEMAND);
195 enable_packets = config_get_boolean_ondemand("plugin:tc", "enable packets charts for all interfaces", CONFIG_ONDEMAND_ONDEMAND);
196 enable_dropped = config_get_boolean_ondemand("plugin:tc", "enable dropped charts for all interfaces", CONFIG_ONDEMAND_ONDEMAND);
197 enable_tokens = config_get_boolean_ondemand("plugin:tc", "enable tokens charts for all interfaces", CONFIG_ONDEMAND_NO);
198 enable_ctokens = config_get_boolean_ondemand("plugin:tc", "enable ctokens charts for all interfaces", CONFIG_ONDEMAND_NO);
199 enabled_all_classes_qdiscs = config_get_boolean_ondemand("plugin:tc", "enable show all classes and qdiscs for all interfaces", CONFIG_ONDEMAND_NO);
202 if(unlikely(d->enabled == (char)-1)) {
203 char var_name[CONFIG_MAX_NAME + 1];
204 snprintfz(var_name, CONFIG_MAX_NAME, "qos for %s", d->id);
206 d->enabled = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_new_interfaces);
208 snprintfz(var_name, CONFIG_MAX_NAME, "traffic chart for %s", d->id);
209 d->enabled_bytes = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_bytes);
211 snprintfz(var_name, CONFIG_MAX_NAME, "packets chart for %s", d->id);
212 d->enabled_packets = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_packets);
214 snprintfz(var_name, CONFIG_MAX_NAME, "dropped packets chart for %s", d->id);
215 d->enabled_dropped = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_dropped);
217 snprintfz(var_name, CONFIG_MAX_NAME, "tokens chart for %s", d->id);
218 d->enabled_tokens = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_tokens);
220 snprintfz(var_name, CONFIG_MAX_NAME, "ctokens chart for %s", d->id);
221 d->enabled_ctokens = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_ctokens);
223 snprintfz(var_name, CONFIG_MAX_NAME, "show all classes for %s", d->id);
224 d->enabled_all_classes_qdiscs = (char)config_get_boolean_ondemand("plugin:tc", var_name, enabled_all_classes_qdiscs);
227 // we only need to add leaf classes
228 struct tc_class *c, *x /*, *root = NULL */;
229 unsigned long long bytes_sum = 0, packets_sum = 0, dropped_sum = 0, tokens_sum = 0, ctokens_sum = 0;
230 int active_nodes = 0, updated_classes = 0, updated_qdiscs = 0;
232 // prepare all classes
233 // we set reasonable defaults for the rest of the code below
235 for(c = d->classes ; c ; c = c->next) {
236 c->render = 0; // do not render this class
238 c->isleaf = 1; // this is a leaf class
239 c->hasparent = 0; // without a parent
241 if(unlikely(!c->updated))
242 c->unupdated++; // increase its unupdated counter
244 c->unupdated = 0; // reset its unupdated counter
246 // count how many of each kind
254 if(unlikely(!d->enabled || (!updated_classes && !updated_qdiscs))) {
255 debug(D_TC_LOOP, "TC: Ignoring TC device '%s'. It is not enabled/updated.", d->name?d->name:d->id);
256 tc_device_classes_cleanup(d);
260 if(unlikely(updated_classes && updated_qdiscs)) {
261 error("TC: device '%s' has active both classes (%d) and qdiscs (%d). Will render only qdiscs.", d->id, updated_classes, updated_qdiscs);
263 // set all classes to !updated
264 for(c = d->classes ; c ; c = c->next)
265 if(unlikely(!c->isqdisc && c->updated))
271 // mark the classes as leafs and parents
273 // TC is hierarchical:
274 // - classes can have other classes in them
275 // - the same is true for qdiscs (i.e. qdiscs have classes, that have other qdiscs)
277 // we need to present a chart with leaf nodes only, so that the sum
278 // of all dimensions of the chart, will be the total utilization
281 // here we try to find the ones we need to report
282 // by default all nodes are marked with: isleaf = 1 (see above)
284 // so, here we remove the isleaf flag from nodes in the middle
285 // and we add the hasparent flag to leaf nodes we found their parent
286 if(likely(!d->enabled_all_classes_qdiscs)) {
287 for(c = d->classes; c; c = c->next) {
288 if(unlikely(!c->updated)) continue;
290 //debug(D_TC_LOOP, "TC: In device '%s', %s '%s' has leafid: '%s' and parentid '%s'.",
292 // c->isqdisc?"qdisc":"class",
294 // c->leafid?c->leafid:"NULL",
295 // c->parentid?c->parentid:"NULL");
297 // find if c is leaf or not
298 for(x = d->classes; x; x = x->next) {
299 if(unlikely(!x->updated || c == x || !x->parentid)) continue;
301 // classes have both parentid and leafid
302 // qdiscs have only parentid
303 // the following works for both (it is an OR)
305 if((c->hash == x->parent_hash && strcmp(c->id, x->parentid) == 0) ||
306 (c->leafid && c->leaf_hash == x->parent_hash && strcmp(c->leafid, x->parentid) == 0)) {
307 // debug(D_TC_LOOP, "TC: In device '%s', %s '%s' (leafid: '%s') has as leaf %s '%s' (parentid: '%s').", d->name?d->name:d->id, c->isqdisc?"qdisc":"class", c->name?c->name:c->id, c->leafid?c->leafid:c->id, x->isqdisc?"qdisc":"class", x->name?x->name:x->id, x->parentid?x->parentid:x->id);
315 for(c = d->classes ; c ; c = c->next) {
316 if(unlikely(!c->updated)) continue;
318 // debug(D_TC_LOOP, "TC: device '%s', %s '%s' isleaf=%d, hasparent=%d", d->id, (c->isqdisc)?"qdisc":"class", c->id, c->isleaf, c->hasparent);
320 if(unlikely((c->isleaf && c->hasparent) || d->enabled_all_classes_qdiscs)) {
323 bytes_sum += c->bytes;
324 packets_sum += c->packets;
325 dropped_sum += c->dropped;
326 tokens_sum += c->tokens;
327 ctokens_sum += c->ctokens;
330 //if(unlikely(!c->hasparent)) {
331 // if(root) error("TC: multiple root class/qdisc for device '%s' (old: '%s', new: '%s')", d->id, root->id, c->id);
333 // debug(D_TC_LOOP, "TC: found root class/qdisc '%s'", root->id);
337 #ifdef NETDATA_INTERNAL_CHECKS
338 // dump all the list to see what we know
340 if(unlikely(debug_flags & D_TC_LOOP)) {
341 for(c = d->classes ; c ; c = c->next) {
342 if(c->render) debug(D_TC_LOOP, "TC: final nodes dump for '%s': class %s, OK", d->name, c->id);
343 else debug(D_TC_LOOP, "TC: final nodes dump for '%s': class %s, IGNORE (updated: %d, isleaf: %d, hasparent: %d, parent: %s)", d->name?d->name:d->id, c->id, c->updated, c->isleaf, c->hasparent, c->parentid?c->parentid:"(unset)");
348 if(unlikely(!active_nodes)) {
349 debug(D_TC_LOOP, "TC: Ignoring TC device '%s'. No useful classes/qdiscs.", d->name?d->name:d->id);
350 tc_device_classes_cleanup(d);
354 debug(D_TC_LOOP, "TC: evaluating TC device '%s'. enabled = %d/%d (bytes: %d/%d, packets: %d/%d, dropped: %d/%d, tokens: %d/%d, ctokens: %d/%d, all_classes_qdiscs: %d/%d), classes: (bytes = %llu, packets = %llu, dropped = %llu, tokens = %llu, ctokens = %llu).",
355 d->name?d->name:d->id,
356 d->enabled, enable_new_interfaces,
357 d->enabled_bytes, enable_bytes,
358 d->enabled_packets, enable_packets,
359 d->enabled_dropped, enable_dropped,
360 d->enabled_tokens, enable_tokens,
361 d->enabled_ctokens, enable_ctokens,
362 d->enabled_all_classes_qdiscs, enabled_all_classes_qdiscs,
370 // --------------------------------------------------------------------
373 if(d->enabled_bytes == CONFIG_ONDEMAND_YES || (d->enabled_bytes == CONFIG_ONDEMAND_ONDEMAND && bytes_sum)) {
374 d->enabled_bytes = CONFIG_ONDEMAND_YES;
376 if(unlikely(!d->st_bytes))
377 d->st_bytes = rrdset_create(RRD_TYPE_TC, d->id, d->name?d->name:d->id, d->family?d->family:d->id, RRD_TYPE_TC ".qos", "Class Usage", "kilobits/s", 7000, rrd_update_every, d->enabled_all_classes_qdiscs ? RRDSET_TYPE_LINE : RRDSET_TYPE_STACKED);
380 rrdset_next(d->st_bytes);
381 if(unlikely(d->name_updated)) rrdset_set_name(d->st_bytes, d->name);
387 for(c = d->classes ; c ; c = c->next) {
388 if(unlikely(!c->render)) continue;
390 if(unlikely(!c->rd_bytes))
391 c->rd_bytes = rrddim_add(d->st_bytes, c->id, c->name?c->name:c->id, 8, 1024, RRDDIM_INCREMENTAL);
392 else if(unlikely(c->name_updated))
393 rrddim_set_name(d->st_bytes, c->rd_bytes, c->name);
395 rrddim_set_by_pointer(d->st_bytes, c->rd_bytes, c->bytes);
397 rrdset_done(d->st_bytes);
400 // --------------------------------------------------------------------
403 if(d->enabled_packets == CONFIG_ONDEMAND_YES || (d->enabled_packets == CONFIG_ONDEMAND_ONDEMAND && packets_sum)) {
404 d->enabled_packets = CONFIG_ONDEMAND_YES;
406 if(unlikely(!d->st_packets)) {
407 char id[RRD_ID_LENGTH_MAX + 1];
408 char name[RRD_ID_LENGTH_MAX + 1];
409 snprintfz(id, RRD_ID_LENGTH_MAX, "%s_packets", d->id);
410 snprintfz(name, RRD_ID_LENGTH_MAX, "%s_packets", d->name?d->name:d->id);
412 d->st_packets = rrdset_create(RRD_TYPE_TC, id, name, d->family?d->family:d->id, RRD_TYPE_TC ".qos_packets", "Class Packets", "packets/s", 7010, rrd_update_every, d->enabled_all_classes_qdiscs ? RRDSET_TYPE_LINE : RRDSET_TYPE_STACKED);
415 rrdset_next(d->st_packets);
417 if(unlikely(d->name_updated)) {
418 char name[RRD_ID_LENGTH_MAX + 1];
419 snprintfz(name, RRD_ID_LENGTH_MAX, "%s_packets", d->name?d->name:d->id);
420 rrdset_set_name(d->st_packets, name);
427 for(c = d->classes ; c ; c = c->next) {
428 if(unlikely(!c->render)) continue;
430 if(unlikely(!c->rd_packets))
431 c->rd_packets = rrddim_add(d->st_packets, c->id, c->name?c->name:c->id, 1, 1, RRDDIM_INCREMENTAL);
432 else if(unlikely(c->name_updated))
433 rrddim_set_name(d->st_packets, c->rd_packets, c->name);
435 rrddim_set_by_pointer(d->st_packets, c->rd_packets, c->packets);
437 rrdset_done(d->st_packets);
440 // --------------------------------------------------------------------
443 if(d->enabled_dropped == CONFIG_ONDEMAND_YES || (d->enabled_dropped == CONFIG_ONDEMAND_ONDEMAND && dropped_sum)) {
444 d->enabled_dropped = CONFIG_ONDEMAND_YES;
446 if(unlikely(!d->st_dropped)) {
447 char id[RRD_ID_LENGTH_MAX + 1];
448 char name[RRD_ID_LENGTH_MAX + 1];
449 snprintfz(id, RRD_ID_LENGTH_MAX, "%s_dropped", d->id);
450 snprintfz(name, RRD_ID_LENGTH_MAX, "%s_dropped", d->name?d->name:d->id);
452 d->st_dropped = rrdset_create(RRD_TYPE_TC, id, name, d->family?d->family:d->id, RRD_TYPE_TC ".qos_dropped", "Class Dropped Packets", "packets/s", 7020, rrd_update_every, d->enabled_all_classes_qdiscs ? RRDSET_TYPE_LINE : RRDSET_TYPE_STACKED);
455 rrdset_next(d->st_dropped);
457 if(unlikely(d->name_updated)) {
458 char name[RRD_ID_LENGTH_MAX + 1];
459 snprintfz(name, RRD_ID_LENGTH_MAX, "%s_dropped", d->name?d->name:d->id);
460 rrdset_set_name(d->st_dropped, name);
467 for(c = d->classes ; c ; c = c->next) {
468 if(unlikely(!c->render)) continue;
470 if(unlikely(!c->rd_dropped))
471 c->rd_dropped = rrddim_add(d->st_dropped, c->id, c->name?c->name:c->id, 1, 1, RRDDIM_INCREMENTAL);
472 else if(unlikely(c->name_updated))
473 rrddim_set_name(d->st_dropped, c->rd_dropped, c->name);
475 rrddim_set_by_pointer(d->st_dropped, c->rd_dropped, c->dropped);
477 rrdset_done(d->st_dropped);
480 // --------------------------------------------------------------------
483 if(d->enabled_tokens == CONFIG_ONDEMAND_YES || (d->enabled_tokens == CONFIG_ONDEMAND_ONDEMAND && tokens_sum)) {
484 d->enabled_tokens = CONFIG_ONDEMAND_YES;
486 if(unlikely(!d->st_tokens)) {
487 char id[RRD_ID_LENGTH_MAX + 1];
488 char name[RRD_ID_LENGTH_MAX + 1];
489 snprintfz(id, RRD_ID_LENGTH_MAX, "%s_tokens", d->id);
490 snprintfz(name, RRD_ID_LENGTH_MAX, "%s_tokens", d->name?d->name:d->id);
492 d->st_tokens = rrdset_create(RRD_TYPE_TC, id, name, d->family?d->family:d->id, RRD_TYPE_TC ".qos_tokens", "Class Tokens", "tokens", 7030, rrd_update_every, RRDSET_TYPE_LINE);
495 rrdset_next(d->st_tokens);
497 if(unlikely(d->name_updated)) {
498 char name[RRD_ID_LENGTH_MAX + 1];
499 snprintfz(name, RRD_ID_LENGTH_MAX, "%s_tokens", d->name?d->name:d->id);
500 rrdset_set_name(d->st_tokens, name);
507 for(c = d->classes ; c ; c = c->next) {
508 if(unlikely(!c->render)) continue;
510 if(unlikely(!c->rd_tokens)) {
511 c->rd_tokens = rrddim_add(d->st_tokens, c->id, c->name?c->name:c->id, 1, 1, RRDDIM_ABSOLUTE);
513 else if(unlikely(c->name_updated))
514 rrddim_set_name(d->st_tokens, c->rd_tokens, c->name);
516 rrddim_set_by_pointer(d->st_tokens, c->rd_tokens, c->tokens);
518 rrdset_done(d->st_tokens);
521 // --------------------------------------------------------------------
524 if(d->enabled_ctokens == CONFIG_ONDEMAND_YES || (d->enabled_ctokens == CONFIG_ONDEMAND_ONDEMAND && ctokens_sum)) {
525 d->enabled_ctokens = CONFIG_ONDEMAND_YES;
527 if(unlikely(!d->st_ctokens)) {
528 char id[RRD_ID_LENGTH_MAX + 1];
529 char name[RRD_ID_LENGTH_MAX + 1];
530 snprintfz(id, RRD_ID_LENGTH_MAX, "%s_ctokens", d->id);
531 snprintfz(name, RRD_ID_LENGTH_MAX, "%s_ctokens", d->name?d->name:d->id);
533 d->st_ctokens = rrdset_create(RRD_TYPE_TC, id, name, d->family?d->family:d->id, RRD_TYPE_TC ".qos_ctokens", "Class cTokens", "ctokens", 7040, rrd_update_every, RRDSET_TYPE_LINE);
536 debug(D_TC_LOOP, "TC: Updating _ctokens chart for device '%s'", d->name?d->name:d->id);
537 rrdset_next(d->st_ctokens);
539 if(unlikely(d->name_updated)) {
540 char name[RRD_ID_LENGTH_MAX + 1];
541 snprintfz(name, RRD_ID_LENGTH_MAX, "%s_ctokens", d->name?d->name:d->id);
542 rrdset_set_name(d->st_ctokens, name);
549 for(c = d->classes ; c ; c = c->next) {
550 if(unlikely(!c->render)) continue;
552 if(unlikely(!c->rd_ctokens))
553 c->rd_ctokens = rrddim_add(d->st_ctokens, c->id, c->name?c->name:c->id, 1, 1, RRDDIM_ABSOLUTE);
554 else if(unlikely(c->name_updated))
555 rrddim_set_name(d->st_ctokens, c->rd_ctokens, c->name);
557 rrddim_set_by_pointer(d->st_ctokens, c->rd_ctokens, c->ctokens);
559 rrdset_done(d->st_ctokens);
562 tc_device_classes_cleanup(d);
565 static inline void tc_device_set_class_name(struct tc_device *d, char *id, char *name) {
566 if(unlikely(!name || !*name)) return;
568 struct tc_class *c = tc_class_index_find(d, id, 0);
570 if(likely(c->name)) {
571 if(!strcmp(c->name, name)) return;
576 if(likely(name && *name && strcmp(c->id, name) != 0)) {
577 debug(D_TC_LOOP, "TC: Setting device '%s', class '%s' name to '%s'", d->id, id, name);
578 c->name = strdupz(name);
584 static inline void tc_device_set_device_name(struct tc_device *d, char *name) {
585 if(unlikely(!name || !*name)) return;
588 if(!strcmp(d->name, name)) return;
593 if(likely(name && *name && strcmp(d->id, name))) {
594 debug(D_TC_LOOP, "TC: Setting device '%s' name to '%s'", d->id, name);
595 d->name = strdupz(name);
600 static inline void tc_device_set_device_family(struct tc_device *d, char *family) {
604 if(likely(family && *family && strcmp(d->id, family) != 0)) {
605 debug(D_TC_LOOP, "TC: Setting device '%s' family to '%s'", d->id, family);
606 d->family = strdupz(family);
607 d->family_updated = 1;
609 // no need for null termination - it is already null
612 static inline struct tc_device *tc_device_create(char *id)
614 struct tc_device *d = tc_device_index_find(id, 0);
617 debug(D_TC_LOOP, "TC: Creating device '%s'", id);
619 d = callocz(1, sizeof(struct tc_device));
622 d->hash = simple_hash(d->id);
623 d->enabled = (char)-1;
625 avl_init(&d->classes_index, tc_class_compare);
626 if(unlikely(tc_device_index_add(d) != d))
627 error("plugin_tc: INTERNAL ERROR: removing device '%s' removed a different device.", d->id);
629 if(!tc_device_root) {
633 d->next = tc_device_root;
634 tc_device_root->prev = d;
642 static inline struct tc_class *tc_class_add(struct tc_device *n, char *id, char qdisc, char *parentid, char *leafid)
644 struct tc_class *c = tc_class_index_find(n, id, 0);
647 debug(D_TC_LOOP, "TC: Creating in device '%s', class id '%s', parentid '%s', leafid '%s'", n->id, id, parentid?parentid:"", leafid?leafid:"");
649 c = callocz(1, sizeof(struct tc_class));
651 if(n->classes) n->classes->prev = c;
652 c->next = n->classes;
656 c->hash = simple_hash(c->id);
659 if(parentid && *parentid) {
660 c->parentid = strdupz(parentid);
661 c->parent_hash = simple_hash(c->parentid);
664 if(leafid && *leafid) {
665 c->leafid = strdupz(leafid);
666 c->leaf_hash = simple_hash(c->leafid);
669 if(unlikely(tc_class_index_add(n, c) != c))
670 error("plugin_tc: INTERNAL ERROR: attempt index class '%s' on device '%s': already exists", c->id, n->id);
675 static inline void tc_device_free(struct tc_device *n)
677 if(n->next) n->next->prev = n->prev;
678 if(n->prev) n->prev->next = n->next;
679 if(tc_device_root == n) {
680 if(n->next) tc_device_root = n->next;
681 else tc_device_root = n->prev;
684 if(unlikely(tc_device_index_del(n) != n))
685 error("plugin_tc: INTERNAL ERROR: removing device '%s' removed a different device.", n->id);
687 while(n->classes) tc_class_free(n, n->classes);
695 static inline void tc_device_free_all()
697 while(tc_device_root)
698 tc_device_free(tc_device_root);
703 static inline int tc_space(char c) {
716 static inline void tc_split_words(char *str, char **words, int max_words) {
720 // skip all white space
721 while(tc_space(*s)) s++;
723 // store the first word
726 // while we have something
729 if(unlikely(tc_space(*s))) {
731 // terminate the word
734 // skip all white space
735 while(tc_space(*s)) s++;
737 // if we reached the end, stop
740 // store the next word
741 if(i < max_words) words[i++] = s;
747 // terminate the words
748 while(i < max_words) words[i++] = NULL;
751 volatile pid_t tc_child_pid = 0;
752 void *tc_main(void *ptr) {
753 struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
755 info("TC thread created with task id %d", gettid());
757 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
758 error("Cannot set pthread cancel type to DEFERRED.");
760 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
761 error("Cannot set pthread cancel state to ENABLE.");
763 struct rusage thread;
764 RRDSET *stcpu = NULL, *sttime = NULL;
766 char buffer[TC_LINE_MAX+1] = "";
767 char *words[MAX_WORDS] = { NULL };
769 uint32_t BEGIN_HASH = simple_hash("BEGIN");
770 uint32_t END_HASH = simple_hash("END");
771 uint32_t QDISC_HASH = simple_hash("qdisc");
772 uint32_t CLASS_HASH = simple_hash("class");
773 uint32_t SENT_HASH = simple_hash("Sent");
774 uint32_t LENDED_HASH = simple_hash("lended:");
775 uint32_t TOKENS_HASH = simple_hash("tokens:");
776 uint32_t SETDEVICENAME_HASH = simple_hash("SETDEVICENAME");
777 uint32_t SETDEVICEGROUP_HASH = simple_hash("SETDEVICEGROUP");
778 uint32_t SETCLASSNAME_HASH = simple_hash("SETCLASSNAME");
779 uint32_t WORKTIME_HASH = simple_hash("WORKTIME");
780 #ifdef DETACH_PLUGINS_FROM_NETDATA
781 uint32_t MYPID_HASH = simple_hash("MYPID");
785 snprintfz(buffer, TC_LINE_MAX, "%s/tc-qos-helper.sh", config_get("plugins", "plugins directory", PLUGINS_DIR));
786 char *tc_script = config_get("plugin:tc", "script to run to get tc values", buffer);
789 if(unlikely(netdata_exit)) break;
792 struct tc_device *device = NULL;
793 struct tc_class *class = NULL;
795 snprintfz(buffer, TC_LINE_MAX, "exec %s %d", tc_script, rrd_update_every);
796 debug(D_TC_LOOP, "executing '%s'", buffer);
798 fp = mypopen(buffer, (pid_t *)&tc_child_pid);
800 error("TC: Cannot popen(\"%s\", \"r\").", buffer);
804 while(fgets(buffer, TC_LINE_MAX, fp) != NULL) {
805 if(unlikely(netdata_exit)) break;
807 buffer[TC_LINE_MAX] = '\0';
808 // debug(D_TC_LOOP, "TC: read '%s'", buffer);
810 tc_split_words(buffer, words, MAX_WORDS);
812 if(unlikely(!words[0] || !*words[0])) {
813 // debug(D_TC_LOOP, "empty line");
816 // else debug(D_TC_LOOP, "First word is '%s'", words[0]);
818 first_hash = simple_hash(words[0]);
820 if(unlikely(device && ((first_hash == CLASS_HASH && strcmp(words[0], "class") == 0) || (first_hash == QDISC_HASH && strcmp(words[0], "qdisc") == 0)))) {
821 // debug(D_TC_LOOP, "CLASS line on class id='%s', parent='%s', parentid='%s', leaf='%s', leafid='%s'", words[2], words[3], words[4], words[5], words[6]);
823 char *type = words[1]; // the class/qdisc type: htb, fq_codel, etc
824 char *id = words[2]; // the class/qdisc major:minor
825 char *parent = words[3]; // the word 'parent' or 'root'
826 char *parentid = words[4]; // parentid
827 char *leaf = words[5]; // the word 'leaf'
828 char *leafid = words[6]; // leafid
830 int parent_is_root = 0;
831 int parent_is_parent = 0;
833 parent_is_parent = !strcmp(parent, "parent");
835 if(!parent_is_parent)
836 parent_is_root = !strcmp(parent, "root");
839 if(likely(type && id && (parent_is_root || parent_is_parent))) {
842 if(first_hash == QDISC_HASH) {
845 if(!strcmp(type, "ingress")) {
846 // we don't want to get the ingress qdisc
847 // there should be an IFB interface for this
853 if(parent_is_parent && parentid) {
854 // eliminate the minor number from parentid
855 // why: parentid is the id of the parent class
856 // but major: is also the id of the parent qdisc
859 while(*s && *s != ':') s++;
860 if(*s == ':') s[1] = '\0';
868 else if(!leaf || strcmp(leaf, "leaf") != 0)
871 char leafbuf[20 + 1] = "";
872 if(leafid && leafid[strlen(leafid) - 1] == ':') {
873 strncpyz(leafbuf, leafid, 20 - 1);
874 strcat(leafbuf, "1");
878 class = tc_class_add(device, id, qdisc, parentid, leafid);
881 // clear the last class
885 else if(unlikely(first_hash == END_HASH && strcmp(words[0], "END") == 0)) {
886 // debug(D_TC_LOOP, "END line");
889 if(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL) != 0)
890 error("Cannot set pthread cancel state to DISABLE.");
892 tc_device_commit(device);
893 // tc_device_free(device);
895 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
896 error("Cannot set pthread cancel state to ENABLE.");
902 else if(unlikely(first_hash == BEGIN_HASH && strcmp(words[0], "BEGIN") == 0)) {
903 // debug(D_TC_LOOP, "BEGIN line on device '%s'", words[1]);
905 if(likely(words[1] && *words[1])) {
906 device = tc_device_create(words[1]);
909 // tc_device_free(device);
915 else if(unlikely(device && class && first_hash == SENT_HASH && strcmp(words[0], "Sent") == 0)) {
916 // debug(D_TC_LOOP, "SENT line '%s'", words[1]);
917 if(likely(words[1] && *words[1])) {
918 class->bytes = str2ull(words[1]);
925 if(likely(words[3] && *words[3]))
926 class->packets = str2ull(words[3]);
928 if(likely(words[6] && *words[6]))
929 class->dropped = str2ull(words[6]);
931 if(likely(words[8] && *words[8]))
932 class->overlimits = str2ull(words[8]);
934 if(likely(words[10] && *words[10]))
935 class->requeues = str2ull(words[8]);
937 else if(unlikely(device && class && class->updated && first_hash == LENDED_HASH && strcmp(words[0], "lended:") == 0)) {
938 // debug(D_TC_LOOP, "LENDED line '%s'", words[1]);
939 if(likely(words[1] && *words[1]))
940 class->lended = str2ull(words[1]);
942 if(likely(words[3] && *words[3]))
943 class->borrowed = str2ull(words[3]);
945 if(likely(words[5] && *words[5]))
946 class->giants = str2ull(words[5]);
948 else if(unlikely(device && class && class->updated && first_hash == TOKENS_HASH && strcmp(words[0], "tokens:") == 0)) {
949 // debug(D_TC_LOOP, "TOKENS line '%s'", words[1]);
950 if(likely(words[1] && *words[1]))
951 class->tokens = str2ull(words[1]);
953 if(likely(words[3] && *words[3]))
954 class->ctokens = str2ull(words[3]);
956 else if(unlikely(device && first_hash == SETDEVICENAME_HASH && strcmp(words[0], "SETDEVICENAME") == 0)) {
957 // debug(D_TC_LOOP, "SETDEVICENAME line '%s'", words[1]);
958 if(likely(words[1] && *words[1]))
959 tc_device_set_device_name(device, words[1]);
961 else if(unlikely(device && first_hash == SETDEVICEGROUP_HASH && strcmp(words[0], "SETDEVICEGROUP") == 0)) {
962 // debug(D_TC_LOOP, "SETDEVICEGROUP line '%s'", words[1]);
963 if(likely(words[1] && *words[1]))
964 tc_device_set_device_family(device, words[1]);
966 else if(unlikely(device && first_hash == SETCLASSNAME_HASH && strcmp(words[0], "SETCLASSNAME") == 0)) {
967 // debug(D_TC_LOOP, "SETCLASSNAME line '%s' '%s'", words[1], words[2]);
969 char *path = words[2];
970 if(likely(id && *id && path && *path))
971 tc_device_set_class_name(device, id, path);
973 else if(unlikely(first_hash == WORKTIME_HASH && strcmp(words[0], "WORKTIME") == 0)) {
974 // debug(D_TC_LOOP, "WORKTIME line '%s' '%s'", words[1], words[2]);
975 getrusage(RUSAGE_THREAD, &thread);
977 if(unlikely(!stcpu)) stcpu = rrdset_find("netdata.plugin_tc_cpu");
978 if(unlikely(!stcpu)) {
979 stcpu = rrdset_create("netdata", "plugin_tc_cpu", NULL, "tc.helper", NULL, "NetData TC CPU usage", "milliseconds/s", 135000, rrd_update_every, RRDSET_TYPE_STACKED);
980 rrddim_add(stcpu, "user", NULL, 1, 1000, RRDDIM_INCREMENTAL);
981 rrddim_add(stcpu, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
983 else rrdset_next(stcpu);
985 rrddim_set(stcpu, "user" , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
986 rrddim_set(stcpu, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
989 if(unlikely(!sttime)) stcpu = rrdset_find("netdata.plugin_tc_time");
990 if(unlikely(!sttime)) {
991 sttime = rrdset_create("netdata", "plugin_tc_time", NULL, "tc.helper", NULL, "NetData TC script execution", "milliseconds/run", 135001, rrd_update_every, RRDSET_TYPE_AREA);
992 rrddim_add(sttime, "run_time", "run time", 1, 1, RRDDIM_ABSOLUTE);
994 else rrdset_next(sttime);
996 rrddim_set(sttime, "run_time", atoll(words[1]));
1000 #ifdef DETACH_PLUGINS_FROM_NETDATA
1001 else if(unlikely(first_hash == MYPID_HASH && (strcmp(words[0], "MYPID") == 0))) {
1002 // debug(D_TC_LOOP, "MYPID line '%s'", words[1]);
1003 char *id = words[1];
1004 pid_t pid = atol(id);
1006 if(likely(pid)) tc_child_pid = pid;
1008 debug(D_TC_LOOP, "TC: Child PID is %d.", tc_child_pid);
1012 // debug(D_TC_LOOP, "IGNORED line");
1016 // fgets() failed or loop broke
1017 int code = mypclose(fp, (pid_t)tc_child_pid);
1020 if(unlikely(device)) {
1021 // tc_device_free(device);
1026 if(unlikely(netdata_exit)) {
1027 tc_device_free_all();
1031 if(code == 1 || code == 127) {
1033 // 127 = cannot even run it
1034 error("TC: tc-qos-helper.sh exited with code %d. Disabling it.", code);
1036 tc_device_free_all();
1040 sleep((unsigned int) rrd_update_every);
1044 info("TC thread exiting");
1046 static_thread->enabled = 0;