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authorDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:19:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:20:17 +0000
commita64a253794ac64cb40befee54db53bde17dd0d49 (patch)
treec1024acc5f6e508814b944d99f112259bb28b1be /collectors/tc.plugin/plugin_tc.c
parentNew upstream version 1.10.0+dfsg (diff)
downloadnetdata-a64a253794ac64cb40befee54db53bde17dd0d49.tar.xz
netdata-a64a253794ac64cb40befee54db53bde17dd0d49.zip
New upstream version 1.11.0+dfsgupstream/1.11.0+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'collectors/tc.plugin/plugin_tc.c')
-rw-r--r--collectors/tc.plugin/plugin_tc.c1168
1 files changed, 1168 insertions, 0 deletions
diff --git a/collectors/tc.plugin/plugin_tc.c b/collectors/tc.plugin/plugin_tc.c
new file mode 100644
index 000000000..083cc2986
--- /dev/null
+++ b/collectors/tc.plugin/plugin_tc.c
@@ -0,0 +1,1168 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "plugin_tc.h"
+
+#define RRD_TYPE_TC "tc"
+#define PLUGIN_TC_NAME "tc.plugin"
+
+// ----------------------------------------------------------------------------
+// /sbin/tc processor
+// this requires the script plugins.d/tc-qos-helper.sh
+
+#define TC_LINE_MAX 1024
+
+struct tc_class {
+ avl avl;
+
+ char *id;
+ uint32_t hash;
+
+ char *name;
+
+ char *leafid;
+ uint32_t leaf_hash;
+
+ char *parentid;
+ uint32_t parent_hash;
+
+ char hasparent;
+ char isleaf;
+ char isqdisc;
+ char render;
+
+ unsigned long long bytes;
+ unsigned long long packets;
+ unsigned long long dropped;
+ unsigned long long overlimits;
+ unsigned long long requeues;
+ unsigned long long lended;
+ unsigned long long borrowed;
+ unsigned long long giants;
+ unsigned long long tokens;
+ unsigned long long ctokens;
+
+ RRDDIM *rd_bytes;
+ RRDDIM *rd_packets;
+ RRDDIM *rd_dropped;
+ RRDDIM *rd_tokens;
+ RRDDIM *rd_ctokens;
+
+ char name_updated;
+ char updated; // updated bytes
+ int unupdated; // the number of times, this has been found un-updated
+
+ struct tc_class *next;
+ struct tc_class *prev;
+};
+
+struct tc_device {
+ avl avl;
+
+ char *id;
+ uint32_t hash;
+
+ char *name;
+ char *family;
+
+ char name_updated;
+ char family_updated;
+
+ char enabled;
+ char enabled_bytes;
+ char enabled_packets;
+ char enabled_dropped;
+ char enabled_tokens;
+ char enabled_ctokens;
+ char enabled_all_classes_qdiscs;
+
+ RRDSET *st_bytes;
+ RRDSET *st_packets;
+ RRDSET *st_dropped;
+ RRDSET *st_tokens;
+ RRDSET *st_ctokens;
+
+ avl_tree classes_index;
+
+ struct tc_class *classes;
+ struct tc_class *last_class;
+
+ struct tc_device *next;
+ struct tc_device *prev;
+};
+
+
+struct tc_device *tc_device_root = NULL;
+
+// ----------------------------------------------------------------------------
+// tc_device index
+
+static int tc_device_compare(void* a, void* b) {
+ if(((struct tc_device *)a)->hash < ((struct tc_device *)b)->hash) return -1;
+ else if(((struct tc_device *)a)->hash > ((struct tc_device *)b)->hash) return 1;
+ else return strcmp(((struct tc_device *)a)->id, ((struct tc_device *)b)->id);
+}
+
+avl_tree tc_device_root_index = {
+ NULL,
+ tc_device_compare
+};
+
+#define tc_device_index_add(st) (struct tc_device *)avl_insert(&tc_device_root_index, (avl *)(st))
+#define tc_device_index_del(st) (struct tc_device *)avl_remove(&tc_device_root_index, (avl *)(st))
+
+static inline struct tc_device *tc_device_index_find(const char *id, uint32_t hash) {
+ struct tc_device tmp;
+ tmp.id = (char *)id;
+ tmp.hash = (hash)?hash:simple_hash(tmp.id);
+
+ return (struct tc_device *)avl_search(&(tc_device_root_index), (avl *)&tmp);
+}
+
+
+// ----------------------------------------------------------------------------
+// tc_class index
+
+static int tc_class_compare(void* a, void* b) {
+ if(((struct tc_class *)a)->hash < ((struct tc_class *)b)->hash) return -1;
+ else if(((struct tc_class *)a)->hash > ((struct tc_class *)b)->hash) return 1;
+ else return strcmp(((struct tc_class *)a)->id, ((struct tc_class *)b)->id);
+}
+
+#define tc_class_index_add(st, rd) (struct tc_class *)avl_insert(&((st)->classes_index), (avl *)(rd))
+#define tc_class_index_del(st, rd) (struct tc_class *)avl_remove(&((st)->classes_index), (avl *)(rd))
+
+static inline struct tc_class *tc_class_index_find(struct tc_device *st, const char *id, uint32_t hash) {
+ struct tc_class tmp;
+ tmp.id = (char *)id;
+ tmp.hash = (hash)?hash:simple_hash(tmp.id);
+
+ return (struct tc_class *)avl_search(&(st->classes_index), (avl *) &tmp);
+}
+
+// ----------------------------------------------------------------------------
+
+static inline void tc_class_free(struct tc_device *n, struct tc_class *c) {
+ if(c == n->classes) {
+ if(likely(c->next))
+ n->classes = c->next;
+ else
+ n->classes = c->prev;
+ }
+
+ if(c == n->last_class) {
+ if(unlikely(c->next))
+ n->last_class = c->next;
+ else
+ n->last_class = c->prev;
+ }
+
+ if(c->next) c->next->prev = c->prev;
+ if(c->prev) c->prev->next = c->next;
+
+ 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);
+
+ if(unlikely(tc_class_index_del(n, c) != c))
+ error("plugin_tc: INTERNAL ERROR: attempt remove class '%s' from device '%s': removed a different calls", c->id, n->id);
+
+ freez(c->id);
+ freez(c->name);
+ freez(c->leafid);
+ freez(c->parentid);
+ freez(c);
+}
+
+static inline void tc_device_classes_cleanup(struct tc_device *d) {
+ static int cleanup_every = 999;
+
+ if(unlikely(cleanup_every > 0)) {
+ cleanup_every = (int) config_get_number("plugin:tc", "cleanup unused classes every", 120);
+ if(cleanup_every < 0) cleanup_every = -cleanup_every;
+ }
+
+ d->name_updated = 0;
+ d->family_updated = 0;
+
+ struct tc_class *c = d->classes;
+ while(c) {
+ if(unlikely(cleanup_every && c->unupdated >= cleanup_every)) {
+ struct tc_class *nc = c->next;
+ tc_class_free(d, c);
+ c = nc;
+ }
+ else {
+ c->updated = 0;
+ c->name_updated = 0;
+
+ c = c->next;
+ }
+ }
+}
+
+static inline void tc_device_commit(struct tc_device *d) {
+ 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;
+
+ if(unlikely(enable_new_interfaces == -1)) {
+ enable_new_interfaces = config_get_boolean_ondemand("plugin:tc", "enable new interfaces detected at runtime", CONFIG_BOOLEAN_YES);
+ enable_bytes = config_get_boolean_ondemand("plugin:tc", "enable traffic charts for all interfaces", CONFIG_BOOLEAN_AUTO);
+ enable_packets = config_get_boolean_ondemand("plugin:tc", "enable packets charts for all interfaces", CONFIG_BOOLEAN_AUTO);
+ enable_dropped = config_get_boolean_ondemand("plugin:tc", "enable dropped charts for all interfaces", CONFIG_BOOLEAN_AUTO);
+ enable_tokens = config_get_boolean_ondemand("plugin:tc", "enable tokens charts for all interfaces", CONFIG_BOOLEAN_NO);
+ enable_ctokens = config_get_boolean_ondemand("plugin:tc", "enable ctokens charts for all interfaces", CONFIG_BOOLEAN_NO);
+ enabled_all_classes_qdiscs = config_get_boolean_ondemand("plugin:tc", "enable show all classes and qdiscs for all interfaces", CONFIG_BOOLEAN_NO);
+ }
+
+ if(unlikely(d->enabled == (char)-1)) {
+ char var_name[CONFIG_MAX_NAME + 1];
+ snprintfz(var_name, CONFIG_MAX_NAME, "qos for %s", d->id);
+
+ d->enabled = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_new_interfaces);
+
+ snprintfz(var_name, CONFIG_MAX_NAME, "traffic chart for %s", d->id);
+ d->enabled_bytes = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_bytes);
+
+ snprintfz(var_name, CONFIG_MAX_NAME, "packets chart for %s", d->id);
+ d->enabled_packets = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_packets);
+
+ snprintfz(var_name, CONFIG_MAX_NAME, "dropped packets chart for %s", d->id);
+ d->enabled_dropped = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_dropped);
+
+ snprintfz(var_name, CONFIG_MAX_NAME, "tokens chart for %s", d->id);
+ d->enabled_tokens = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_tokens);
+
+ snprintfz(var_name, CONFIG_MAX_NAME, "ctokens chart for %s", d->id);
+ d->enabled_ctokens = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_ctokens);
+
+ snprintfz(var_name, CONFIG_MAX_NAME, "show all classes for %s", d->id);
+ d->enabled_all_classes_qdiscs = (char)config_get_boolean_ondemand("plugin:tc", var_name, enabled_all_classes_qdiscs);
+ }
+
+ // we only need to add leaf classes
+ struct tc_class *c, *x /*, *root = NULL */;
+ unsigned long long bytes_sum = 0, packets_sum = 0, dropped_sum = 0, tokens_sum = 0, ctokens_sum = 0;
+ int active_nodes = 0, updated_classes = 0, updated_qdiscs = 0;
+
+ // prepare all classes
+ // we set reasonable defaults for the rest of the code below
+
+ for(c = d->classes ; c ; c = c->next) {
+ c->render = 0; // do not render this class
+
+ c->isleaf = 1; // this is a leaf class
+ c->hasparent = 0; // without a parent
+
+ if(unlikely(!c->updated))
+ c->unupdated++; // increase its unupdated counter
+ else {
+ c->unupdated = 0; // reset its unupdated counter
+
+ // count how many of each kind
+ if(c->isqdisc)
+ updated_qdiscs++;
+ else
+ updated_classes++;
+ }
+ }
+
+ if(unlikely(!d->enabled || (!updated_classes && !updated_qdiscs))) {
+ debug(D_TC_LOOP, "TC: Ignoring TC device '%s'. It is not enabled/updated.", d->name?d->name:d->id);
+ tc_device_classes_cleanup(d);
+ return;
+ }
+
+ if(unlikely(updated_classes && updated_qdiscs)) {
+ error("TC: device '%s' has active both classes (%d) and qdiscs (%d). Will render only qdiscs.", d->id, updated_classes, updated_qdiscs);
+
+ // set all classes to !updated
+ for(c = d->classes ; c ; c = c->next)
+ if(unlikely(!c->isqdisc && c->updated))
+ c->updated = 0;
+
+ updated_classes = 0;
+ }
+
+ // mark the classes as leafs and parents
+ //
+ // TC is hierarchical:
+ // - classes can have other classes in them
+ // - the same is true for qdiscs (i.e. qdiscs have classes, that have other qdiscs)
+ //
+ // we need to present a chart with leaf nodes only, so that the sum
+ // of all dimensions of the chart, will be the total utilization
+ // of the interface.
+ //
+ // here we try to find the ones we need to report
+ // by default all nodes are marked with: isleaf = 1 (see above)
+ //
+ // so, here we remove the isleaf flag from nodes in the middle
+ // and we add the hasparent flag to leaf nodes we found their parent
+ if(likely(!d->enabled_all_classes_qdiscs)) {
+ for(c = d->classes; c; c = c->next) {
+ if(unlikely(!c->updated)) continue;
+
+ //debug(D_TC_LOOP, "TC: In device '%s', %s '%s' has leafid: '%s' and parentid '%s'.",
+ // d->id,
+ // c->isqdisc?"qdisc":"class",
+ // c->id,
+ // c->leafid?c->leafid:"NULL",
+ // c->parentid?c->parentid:"NULL");
+
+ // find if c is leaf or not
+ for(x = d->classes; x; x = x->next) {
+ if(unlikely(!x->updated || c == x || !x->parentid)) continue;
+
+ // classes have both parentid and leafid
+ // qdiscs have only parentid
+ // the following works for both (it is an OR)
+
+ if((c->hash == x->parent_hash && strcmp(c->id, x->parentid) == 0) ||
+ (c->leafid && c->leaf_hash == x->parent_hash && strcmp(c->leafid, x->parentid) == 0)) {
+ // 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);
+ c->isleaf = 0;
+ x->hasparent = 1;
+ }
+ }
+ }
+ }
+
+ for(c = d->classes ; c ; c = c->next) {
+ if(unlikely(!c->updated)) continue;
+
+ // 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);
+
+ if(unlikely((c->isleaf && c->hasparent) || d->enabled_all_classes_qdiscs)) {
+ c->render = 1;
+ active_nodes++;
+ bytes_sum += c->bytes;
+ packets_sum += c->packets;
+ dropped_sum += c->dropped;
+ tokens_sum += c->tokens;
+ ctokens_sum += c->ctokens;
+ }
+
+ //if(unlikely(!c->hasparent)) {
+ // if(root) error("TC: multiple root class/qdisc for device '%s' (old: '%s', new: '%s')", d->id, root->id, c->id);
+ // root = c;
+ // debug(D_TC_LOOP, "TC: found root class/qdisc '%s'", root->id);
+ //}
+ }
+
+#ifdef NETDATA_INTERNAL_CHECKS
+ // dump all the list to see what we know
+
+ if(unlikely(debug_flags & D_TC_LOOP)) {
+ for(c = d->classes ; c ; c = c->next) {
+ if(c->render) debug(D_TC_LOOP, "TC: final nodes dump for '%s': class %s, OK", d->name, c->id);
+ 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)");
+ }
+ }
+#endif
+
+ if(unlikely(!active_nodes)) {
+ debug(D_TC_LOOP, "TC: Ignoring TC device '%s'. No useful classes/qdiscs.", d->name?d->name:d->id);
+ tc_device_classes_cleanup(d);
+ return;
+ }
+
+ 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).",
+ d->name?d->name:d->id,
+ d->enabled, enable_new_interfaces,
+ d->enabled_bytes, enable_bytes,
+ d->enabled_packets, enable_packets,
+ d->enabled_dropped, enable_dropped,
+ d->enabled_tokens, enable_tokens,
+ d->enabled_ctokens, enable_ctokens,
+ d->enabled_all_classes_qdiscs, enabled_all_classes_qdiscs,
+ bytes_sum,
+ packets_sum,
+ dropped_sum,
+ tokens_sum,
+ ctokens_sum
+ );
+
+ // --------------------------------------------------------------------
+ // bytes
+
+ if(d->enabled_bytes == CONFIG_BOOLEAN_YES || (d->enabled_bytes == CONFIG_BOOLEAN_AUTO && bytes_sum)) {
+ d->enabled_bytes = CONFIG_BOOLEAN_YES;
+
+ if(unlikely(!d->st_bytes))
+ d->st_bytes = rrdset_create_localhost(
+ 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"
+ , PLUGIN_TC_NAME
+ , NULL
+ , NETDATA_CHART_PRIO_TC_QOS
+ , localhost->rrd_update_every
+ , d->enabled_all_classes_qdiscs ? RRDSET_TYPE_LINE : RRDSET_TYPE_STACKED
+ );
+
+ else {
+ rrdset_next(d->st_bytes);
+ if(unlikely(d->name_updated)) rrdset_set_name(d->st_bytes, d->name);
+
+ // TODO
+ // update the family
+ }
+
+ for(c = d->classes ; c ; c = c->next) {
+ if(unlikely(!c->render)) continue;
+
+ if(unlikely(!c->rd_bytes))
+ c->rd_bytes = rrddim_add(d->st_bytes, c->id, c->name?c->name:c->id, 8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL);
+ else if(unlikely(c->name_updated))
+ rrddim_set_name(d->st_bytes, c->rd_bytes, c->name);
+
+ rrddim_set_by_pointer(d->st_bytes, c->rd_bytes, c->bytes);
+ }
+ rrdset_done(d->st_bytes);
+ }
+
+ // --------------------------------------------------------------------
+ // packets
+
+ if(d->enabled_packets == CONFIG_BOOLEAN_YES || (d->enabled_packets == CONFIG_BOOLEAN_AUTO && packets_sum)) {
+ d->enabled_packets = CONFIG_BOOLEAN_YES;
+
+ if(unlikely(!d->st_packets)) {
+ char id[RRD_ID_LENGTH_MAX + 1];
+ char name[RRD_ID_LENGTH_MAX + 1];
+ snprintfz(id, RRD_ID_LENGTH_MAX, "%s_packets", d->id);
+ snprintfz(name, RRD_ID_LENGTH_MAX, "%s_packets", d->name?d->name:d->id);
+
+ d->st_packets = rrdset_create_localhost(
+ RRD_TYPE_TC
+ , id
+ , name
+ , d->family ? d->family : d->id
+ , RRD_TYPE_TC ".qos_packets"
+ , "Class Packets"
+ , "packets/s"
+ , PLUGIN_TC_NAME
+ , NULL
+ , NETDATA_CHART_PRIO_TC_QOS_PACKETS
+ , localhost->rrd_update_every
+ , d->enabled_all_classes_qdiscs ? RRDSET_TYPE_LINE : RRDSET_TYPE_STACKED
+ );
+ }
+ else {
+ rrdset_next(d->st_packets);
+
+ if(unlikely(d->name_updated)) {
+ char name[RRD_ID_LENGTH_MAX + 1];
+ snprintfz(name, RRD_ID_LENGTH_MAX, "%s_packets", d->name?d->name:d->id);
+ rrdset_set_name(d->st_packets, name);
+ }
+
+ // TODO
+ // update the family
+ }
+
+ for(c = d->classes ; c ; c = c->next) {
+ if(unlikely(!c->render)) continue;
+
+ if(unlikely(!c->rd_packets))
+ c->rd_packets = rrddim_add(d->st_packets, c->id, c->name?c->name:c->id, 1, 1, RRD_ALGORITHM_INCREMENTAL);
+ else if(unlikely(c->name_updated))
+ rrddim_set_name(d->st_packets, c->rd_packets, c->name);
+
+ rrddim_set_by_pointer(d->st_packets, c->rd_packets, c->packets);
+ }
+ rrdset_done(d->st_packets);
+ }
+
+ // --------------------------------------------------------------------
+ // dropped
+
+ if(d->enabled_dropped == CONFIG_BOOLEAN_YES || (d->enabled_dropped == CONFIG_BOOLEAN_AUTO && dropped_sum)) {
+ d->enabled_dropped = CONFIG_BOOLEAN_YES;
+
+ if(unlikely(!d->st_dropped)) {
+ char id[RRD_ID_LENGTH_MAX + 1];
+ char name[RRD_ID_LENGTH_MAX + 1];
+ snprintfz(id, RRD_ID_LENGTH_MAX, "%s_dropped", d->id);
+ snprintfz(name, RRD_ID_LENGTH_MAX, "%s_dropped", d->name?d->name:d->id);
+
+ d->st_dropped = rrdset_create_localhost(
+ RRD_TYPE_TC
+ , id
+ , name
+ , d->family ? d->family : d->id
+ , RRD_TYPE_TC ".qos_dropped"
+ , "Class Dropped Packets"
+ , "packets/s"
+ , PLUGIN_TC_NAME
+ , NULL
+ , NETDATA_CHART_PRIO_TC_QOS_DROPPED
+ , localhost->rrd_update_every
+ , d->enabled_all_classes_qdiscs ? RRDSET_TYPE_LINE : RRDSET_TYPE_STACKED
+ );
+ }
+ else {
+ rrdset_next(d->st_dropped);
+
+ if(unlikely(d->name_updated)) {
+ char name[RRD_ID_LENGTH_MAX + 1];
+ snprintfz(name, RRD_ID_LENGTH_MAX, "%s_dropped", d->name?d->name:d->id);
+ rrdset_set_name(d->st_dropped, name);
+ }
+
+ // TODO
+ // update the family
+ }
+
+ for(c = d->classes ; c ; c = c->next) {
+ if(unlikely(!c->render)) continue;
+
+ if(unlikely(!c->rd_dropped))
+ c->rd_dropped = rrddim_add(d->st_dropped, c->id, c->name?c->name:c->id, 1, 1, RRD_ALGORITHM_INCREMENTAL);
+ else if(unlikely(c->name_updated))
+ rrddim_set_name(d->st_dropped, c->rd_dropped, c->name);
+
+ rrddim_set_by_pointer(d->st_dropped, c->rd_dropped, c->dropped);
+ }
+ rrdset_done(d->st_dropped);
+ }
+
+ // --------------------------------------------------------------------
+ // tokens
+
+ if(d->enabled_tokens == CONFIG_BOOLEAN_YES || (d->enabled_tokens == CONFIG_BOOLEAN_AUTO && tokens_sum)) {
+ d->enabled_tokens = CONFIG_BOOLEAN_YES;
+
+ if(unlikely(!d->st_tokens)) {
+ char id[RRD_ID_LENGTH_MAX + 1];
+ char name[RRD_ID_LENGTH_MAX + 1];
+ snprintfz(id, RRD_ID_LENGTH_MAX, "%s_tokens", d->id);
+ snprintfz(name, RRD_ID_LENGTH_MAX, "%s_tokens", d->name?d->name:d->id);
+
+ d->st_tokens = rrdset_create_localhost(
+ RRD_TYPE_TC
+ , id
+ , name
+ , d->family ? d->family : d->id
+ , RRD_TYPE_TC ".qos_tokens"
+ , "Class Tokens"
+ , "tokens"
+ , PLUGIN_TC_NAME
+ , NULL
+ , NETDATA_CHART_PRIO_TC_QOS_TOCKENS
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_LINE
+ );
+ }
+ else {
+ rrdset_next(d->st_tokens);
+
+ if(unlikely(d->name_updated)) {
+ char name[RRD_ID_LENGTH_MAX + 1];
+ snprintfz(name, RRD_ID_LENGTH_MAX, "%s_tokens", d->name?d->name:d->id);
+ rrdset_set_name(d->st_tokens, name);
+ }
+
+ // TODO
+ // update the family
+ }
+
+ for(c = d->classes ; c ; c = c->next) {
+ if(unlikely(!c->render)) continue;
+
+ if(unlikely(!c->rd_tokens)) {
+ c->rd_tokens = rrddim_add(d->st_tokens, c->id, c->name?c->name:c->id, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else if(unlikely(c->name_updated))
+ rrddim_set_name(d->st_tokens, c->rd_tokens, c->name);
+
+ rrddim_set_by_pointer(d->st_tokens, c->rd_tokens, c->tokens);
+ }
+ rrdset_done(d->st_tokens);
+ }
+
+ // --------------------------------------------------------------------
+ // ctokens
+
+ if(d->enabled_ctokens == CONFIG_BOOLEAN_YES || (d->enabled_ctokens == CONFIG_BOOLEAN_AUTO && ctokens_sum)) {
+ d->enabled_ctokens = CONFIG_BOOLEAN_YES;
+
+ if(unlikely(!d->st_ctokens)) {
+ char id[RRD_ID_LENGTH_MAX + 1];
+ char name[RRD_ID_LENGTH_MAX + 1];
+ snprintfz(id, RRD_ID_LENGTH_MAX, "%s_ctokens", d->id);
+ snprintfz(name, RRD_ID_LENGTH_MAX, "%s_ctokens", d->name?d->name:d->id);
+
+ d->st_ctokens = rrdset_create_localhost(
+ RRD_TYPE_TC
+ , id
+ , name
+ , d->family ? d->family : d->id
+ , RRD_TYPE_TC ".qos_ctokens"
+ , "Class cTokens"
+ , "ctokens"
+ , PLUGIN_TC_NAME
+ , NULL
+ , NETDATA_CHART_PRIO_TC_QOS_CTOCKENS
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_LINE
+ );
+ }
+ else {
+ debug(D_TC_LOOP, "TC: Updating _ctokens chart for device '%s'", d->name?d->name:d->id);
+ rrdset_next(d->st_ctokens);
+
+ if(unlikely(d->name_updated)) {
+ char name[RRD_ID_LENGTH_MAX + 1];
+ snprintfz(name, RRD_ID_LENGTH_MAX, "%s_ctokens", d->name?d->name:d->id);
+ rrdset_set_name(d->st_ctokens, name);
+ }
+
+ // TODO
+ // update the family
+ }
+
+ for(c = d->classes ; c ; c = c->next) {
+ if(unlikely(!c->render)) continue;
+
+ if(unlikely(!c->rd_ctokens))
+ c->rd_ctokens = rrddim_add(d->st_ctokens, c->id, c->name?c->name:c->id, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ else if(unlikely(c->name_updated))
+ rrddim_set_name(d->st_ctokens, c->rd_ctokens, c->name);
+
+ rrddim_set_by_pointer(d->st_ctokens, c->rd_ctokens, c->ctokens);
+ }
+ rrdset_done(d->st_ctokens);
+ }
+
+ tc_device_classes_cleanup(d);
+}
+
+static inline void tc_device_set_class_name(struct tc_device *d, char *id, char *name) {
+ if(unlikely(!name || !*name)) return;
+
+ struct tc_class *c = tc_class_index_find(d, id, 0);
+ if(likely(c)) {
+ if(likely(c->name)) {
+ if(!strcmp(c->name, name)) return;
+ freez(c->name);
+ c->name = NULL;
+ }
+
+ if(likely(name && *name && strcmp(c->id, name) != 0)) {
+ debug(D_TC_LOOP, "TC: Setting device '%s', class '%s' name to '%s'", d->id, id, name);
+ c->name = strdupz(name);
+ c->name_updated = 1;
+ }
+ }
+}
+
+static inline void tc_device_set_device_name(struct tc_device *d, char *name) {
+ if(unlikely(!name || !*name)) return;
+
+ if(d->name) {
+ if(!strcmp(d->name, name)) return;
+ freez(d->name);
+ d->name = NULL;
+ }
+
+ if(likely(name && *name && strcmp(d->id, name) != 0)) {
+ debug(D_TC_LOOP, "TC: Setting device '%s' name to '%s'", d->id, name);
+ d->name = strdupz(name);
+ d->name_updated = 1;
+ }
+}
+
+static inline void tc_device_set_device_family(struct tc_device *d, char *family) {
+ freez(d->family);
+ d->family = NULL;
+
+ if(likely(family && *family && strcmp(d->id, family) != 0)) {
+ debug(D_TC_LOOP, "TC: Setting device '%s' family to '%s'", d->id, family);
+ d->family = strdupz(family);
+ d->family_updated = 1;
+ }
+ // no need for null termination - it is already null
+}
+
+static inline struct tc_device *tc_device_create(char *id)
+{
+ struct tc_device *d = tc_device_index_find(id, 0);
+
+ if(!d) {
+ debug(D_TC_LOOP, "TC: Creating device '%s'", id);
+
+ d = callocz(1, sizeof(struct tc_device));
+
+ d->id = strdupz(id);
+ d->hash = simple_hash(d->id);
+ d->enabled = (char)-1;
+
+ avl_init(&d->classes_index, tc_class_compare);
+ if(unlikely(tc_device_index_add(d) != d))
+ error("plugin_tc: INTERNAL ERROR: removing device '%s' removed a different device.", d->id);
+
+ if(!tc_device_root) {
+ tc_device_root = d;
+ }
+ else {
+ d->next = tc_device_root;
+ tc_device_root->prev = d;
+ tc_device_root = d;
+ }
+ }
+
+ return(d);
+}
+
+static inline struct tc_class *tc_class_add(struct tc_device *n, char *id, char qdisc, char *parentid, char *leafid)
+{
+ struct tc_class *c = tc_class_index_find(n, id, 0);
+
+ if(!c) {
+ debug(D_TC_LOOP, "TC: Creating in device '%s', class id '%s', parentid '%s', leafid '%s'", n->id, id, parentid?parentid:"", leafid?leafid:"");
+
+ c = callocz(1, sizeof(struct tc_class));
+
+ if(unlikely(!n->classes))
+ n->classes = c;
+
+ else if(likely(n->last_class)) {
+ n->last_class->next = c;
+ c->prev = n->last_class;
+ }
+
+ n->last_class = c;
+
+ c->id = strdupz(id);
+ c->hash = simple_hash(c->id);
+
+ c->isqdisc = qdisc;
+ if(parentid && *parentid) {
+ c->parentid = strdupz(parentid);
+ c->parent_hash = simple_hash(c->parentid);
+ }
+
+ if(leafid && *leafid) {
+ c->leafid = strdupz(leafid);
+ c->leaf_hash = simple_hash(c->leafid);
+ }
+
+ if(unlikely(tc_class_index_add(n, c) != c))
+ error("plugin_tc: INTERNAL ERROR: attempt index class '%s' on device '%s': already exists", c->id, n->id);
+ }
+ return(c);
+}
+
+static inline void tc_device_free(struct tc_device *n)
+{
+ if(n->next) n->next->prev = n->prev;
+ if(n->prev) n->prev->next = n->next;
+ if(tc_device_root == n) {
+ if(n->next) tc_device_root = n->next;
+ else tc_device_root = n->prev;
+ }
+
+ if(unlikely(tc_device_index_del(n) != n))
+ error("plugin_tc: INTERNAL ERROR: removing device '%s' removed a different device.", n->id);
+
+ while(n->classes) tc_class_free(n, n->classes);
+
+ freez(n->id);
+ freez(n->name);
+ freez(n->family);
+ freez(n);
+}
+
+static inline void tc_device_free_all()
+{
+ while(tc_device_root)
+ tc_device_free(tc_device_root);
+}
+
+#define PLUGINSD_MAX_WORDS 20
+
+static inline int tc_space(char c) {
+ switch(c) {
+ case ' ':
+ case '\t':
+ case '\r':
+ case '\n':
+ return 1;
+
+ default:
+ return 0;
+ }
+}
+
+static inline void tc_split_words(char *str, char **words, int max_words) {
+ char *s = str;
+ int i = 0;
+
+ // skip all white space
+ while(tc_space(*s)) s++;
+
+ // store the first word
+ words[i++] = s;
+
+ // while we have something
+ while(*s) {
+ // if it is a space
+ if(unlikely(tc_space(*s))) {
+
+ // terminate the word
+ *s++ = '\0';
+
+ // skip all white space
+ while(tc_space(*s)) s++;
+
+ // if we reached the end, stop
+ if(!*s) break;
+
+ // store the next word
+ if(i < max_words) words[i++] = s;
+ else break;
+ }
+ else s++;
+ }
+
+ // terminate the words
+ while(i < max_words) words[i++] = NULL;
+}
+
+static pid_t tc_child_pid = 0;
+
+static void tc_main_cleanup(void *ptr) {
+ struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
+ static_thread->enabled = NETDATA_MAIN_THREAD_EXITING;
+
+ info("cleaning up...");
+
+ if(tc_child_pid) {
+ info("TC: killing with SIGTERM tc-qos-helper process %d", tc_child_pid);
+ if(killpid(tc_child_pid, SIGTERM) != -1) {
+ siginfo_t info;
+
+ info("TC: waiting for tc plugin child process pid %d to exit...", tc_child_pid);
+ waitid(P_PID, (id_t) tc_child_pid, &info, WEXITED);
+ // info("TC: finished tc plugin child process pid %d.", tc_child_pid);
+ }
+
+ tc_child_pid = 0;
+ }
+
+ static_thread->enabled = NETDATA_MAIN_THREAD_EXITED;
+}
+
+void *tc_main(void *ptr) {
+ netdata_thread_cleanup_push(tc_main_cleanup, ptr);
+
+ struct rusage thread;
+
+ char command[FILENAME_MAX + 1];
+ char *words[PLUGINSD_MAX_WORDS] = { NULL };
+
+ uint32_t BEGIN_HASH = simple_hash("BEGIN");
+ uint32_t END_HASH = simple_hash("END");
+ uint32_t QDISC_HASH = simple_hash("qdisc");
+ uint32_t CLASS_HASH = simple_hash("class");
+ uint32_t SENT_HASH = simple_hash("Sent");
+ uint32_t LENDED_HASH = simple_hash("lended:");
+ uint32_t TOKENS_HASH = simple_hash("tokens:");
+ uint32_t SETDEVICENAME_HASH = simple_hash("SETDEVICENAME");
+ uint32_t SETDEVICEGROUP_HASH = simple_hash("SETDEVICEGROUP");
+ uint32_t SETCLASSNAME_HASH = simple_hash("SETCLASSNAME");
+ uint32_t WORKTIME_HASH = simple_hash("WORKTIME");
+#ifdef DETACH_PLUGINS_FROM_NETDATA
+ uint32_t MYPID_HASH = simple_hash("MYPID");
+#endif
+ uint32_t first_hash;
+
+ snprintfz(command, TC_LINE_MAX, "%s/tc-qos-helper.sh", netdata_configured_plugins_dir);
+ char *tc_script = config_get("plugin:tc", "script to run to get tc values", command);
+
+ while(!netdata_exit) {
+ FILE *fp;
+ struct tc_device *device = NULL;
+ struct tc_class *class = NULL;
+
+ snprintfz(command, TC_LINE_MAX, "exec %s %d", tc_script, localhost->rrd_update_every);
+ debug(D_TC_LOOP, "executing '%s'", command);
+
+ fp = mypopen(command, (pid_t *)&tc_child_pid);
+ if(unlikely(!fp)) {
+ error("TC: Cannot popen(\"%s\", \"r\").", command);
+ goto cleanup;
+ }
+
+ char buffer[TC_LINE_MAX+1] = "";
+ while(fgets(buffer, TC_LINE_MAX, fp) != NULL) {
+ if(unlikely(netdata_exit)) break;
+
+ buffer[TC_LINE_MAX] = '\0';
+ // debug(D_TC_LOOP, "TC: read '%s'", buffer);
+
+ tc_split_words(buffer, words, PLUGINSD_MAX_WORDS);
+
+ if(unlikely(!words[0] || !*words[0])) {
+ // debug(D_TC_LOOP, "empty line");
+ continue;
+ }
+ // else debug(D_TC_LOOP, "First word is '%s'", words[0]);
+
+ first_hash = simple_hash(words[0]);
+
+ if(unlikely(device && ((first_hash == CLASS_HASH && strcmp(words[0], "class") == 0) || (first_hash == QDISC_HASH && strcmp(words[0], "qdisc") == 0)))) {
+ // 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]);
+
+ char *type = words[1]; // the class/qdisc type: htb, fq_codel, etc
+ char *id = words[2]; // the class/qdisc major:minor
+ char *parent = words[3]; // the word 'parent' or 'root'
+ char *parentid = words[4]; // parentid
+ char *leaf = words[5]; // the word 'leaf'
+ char *leafid = words[6]; // leafid
+
+ int parent_is_root = 0;
+ int parent_is_parent = 0;
+ if(likely(parent)) {
+ parent_is_parent = !strcmp(parent, "parent");
+
+ if(!parent_is_parent)
+ parent_is_root = !strcmp(parent, "root");
+ }
+
+ if(likely(type && id && (parent_is_root || parent_is_parent))) {
+ char qdisc = 0;
+
+ if(first_hash == QDISC_HASH) {
+ qdisc = 1;
+
+ if(!strcmp(type, "ingress")) {
+ // we don't want to get the ingress qdisc
+ // there should be an IFB interface for this
+
+ class = NULL;
+ continue;
+ }
+
+ if(parent_is_parent && parentid) {
+ // eliminate the minor number from parentid
+ // why: parentid is the id of the parent class
+ // but major: is also the id of the parent qdisc
+
+ char *s = parentid;
+ while(*s && *s != ':') s++;
+ if(*s == ':') s[1] = '\0';
+ }
+ }
+
+ if(parent_is_root) {
+ parentid = NULL;
+ leafid = NULL;
+ }
+ else if(!leaf || strcmp(leaf, "leaf") != 0)
+ leafid = NULL;
+
+ char leafbuf[20 + 1] = "";
+ if(leafid && leafid[strlen(leafid) - 1] == ':') {
+ strncpyz(leafbuf, leafid, 20 - 1);
+ strcat(leafbuf, "1");
+ leafid = leafbuf;
+ }
+
+ class = tc_class_add(device, id, qdisc, parentid, leafid);
+ }
+ else {
+ // clear the last class
+ class = NULL;
+ }
+ }
+ else if(unlikely(first_hash == END_HASH && strcmp(words[0], "END") == 0)) {
+ // debug(D_TC_LOOP, "END line");
+
+ if(likely(device)) {
+ netdata_thread_disable_cancelability();
+ tc_device_commit(device);
+ // tc_device_free(device);
+ netdata_thread_enable_cancelability();
+ }
+
+ device = NULL;
+ class = NULL;
+ }
+ else if(unlikely(first_hash == BEGIN_HASH && strcmp(words[0], "BEGIN") == 0)) {
+ // debug(D_TC_LOOP, "BEGIN line on device '%s'", words[1]);
+
+ if(likely(words[1] && *words[1])) {
+ device = tc_device_create(words[1]);
+ }
+ else {
+ // tc_device_free(device);
+ device = NULL;
+ }
+
+ class = NULL;
+ }
+ else if(unlikely(device && class && first_hash == SENT_HASH && strcmp(words[0], "Sent") == 0)) {
+ // debug(D_TC_LOOP, "SENT line '%s'", words[1]);
+ if(likely(words[1] && *words[1])) {
+ class->bytes = str2ull(words[1]);
+ class->updated = 1;
+ }
+ else {
+ class->updated = 0;
+ }
+
+ if(likely(words[3] && *words[3]))
+ class->packets = str2ull(words[3]);
+
+ if(likely(words[6] && *words[6]))
+ class->dropped = str2ull(words[6]);
+
+ if(likely(words[8] && *words[8]))
+ class->overlimits = str2ull(words[8]);
+
+ if(likely(words[10] && *words[10]))
+ class->requeues = str2ull(words[8]);
+ }
+ else if(unlikely(device && class && class->updated && first_hash == LENDED_HASH && strcmp(words[0], "lended:") == 0)) {
+ // debug(D_TC_LOOP, "LENDED line '%s'", words[1]);
+ if(likely(words[1] && *words[1]))
+ class->lended = str2ull(words[1]);
+
+ if(likely(words[3] && *words[3]))
+ class->borrowed = str2ull(words[3]);
+
+ if(likely(words[5] && *words[5]))
+ class->giants = str2ull(words[5]);
+ }
+ else if(unlikely(device && class && class->updated && first_hash == TOKENS_HASH && strcmp(words[0], "tokens:") == 0)) {
+ // debug(D_TC_LOOP, "TOKENS line '%s'", words[1]);
+ if(likely(words[1] && *words[1]))
+ class->tokens = str2ull(words[1]);
+
+ if(likely(words[3] && *words[3]))
+ class->ctokens = str2ull(words[3]);
+ }
+ else if(unlikely(device && first_hash == SETDEVICENAME_HASH && strcmp(words[0], "SETDEVICENAME") == 0)) {
+ // debug(D_TC_LOOP, "SETDEVICENAME line '%s'", words[1]);
+ if(likely(words[1] && *words[1]))
+ tc_device_set_device_name(device, words[1]);
+ }
+ else if(unlikely(device && first_hash == SETDEVICEGROUP_HASH && strcmp(words[0], "SETDEVICEGROUP") == 0)) {
+ // debug(D_TC_LOOP, "SETDEVICEGROUP line '%s'", words[1]);
+ if(likely(words[1] && *words[1]))
+ tc_device_set_device_family(device, words[1]);
+ }
+ else if(unlikely(device && first_hash == SETCLASSNAME_HASH && strcmp(words[0], "SETCLASSNAME") == 0)) {
+ // debug(D_TC_LOOP, "SETCLASSNAME line '%s' '%s'", words[1], words[2]);
+ char *id = words[1];
+ char *path = words[2];
+ if(likely(id && *id && path && *path))
+ tc_device_set_class_name(device, id, path);
+ }
+ else if(unlikely(first_hash == WORKTIME_HASH && strcmp(words[0], "WORKTIME") == 0)) {
+ // debug(D_TC_LOOP, "WORKTIME line '%s' '%s'", words[1], words[2]);
+ getrusage(RUSAGE_THREAD, &thread);
+
+ static RRDSET *stcpu = NULL;
+ static RRDDIM *rd_user = NULL, *rd_system = NULL;
+
+ if(unlikely(!stcpu)) {
+ stcpu = rrdset_create_localhost(
+ "netdata"
+ , "plugin_tc_cpu"
+ , NULL
+ , "tc.helper"
+ , NULL
+ , "NetData TC CPU usage"
+ , "milliseconds/s"
+ , PLUGIN_TC_NAME
+ , NULL
+ , NETDATA_CHART_PRIO_NETDATA_TC_CPU
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_STACKED
+ );
+ rd_user = rrddim_add(stcpu, "user", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
+ rd_system = rrddim_add(stcpu, "system", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
+ }
+ else rrdset_next(stcpu);
+
+ rrddim_set_by_pointer(stcpu, rd_user , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
+ rrddim_set_by_pointer(stcpu, rd_system, thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
+ rrdset_done(stcpu);
+
+ static RRDSET *sttime = NULL;
+ static RRDDIM *rd_run_time = NULL;
+
+ if(unlikely(!sttime)) {
+ sttime = rrdset_create_localhost(
+ "netdata"
+ , "plugin_tc_time"
+ , NULL
+ , "tc.helper"
+ , NULL
+ , "NetData TC script execution"
+ , "milliseconds/run"
+ , PLUGIN_TC_NAME
+ , NULL
+ , NETDATA_CHART_PRIO_NETDATA_TC_TIME
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_AREA
+ );
+ rd_run_time = rrddim_add(sttime, "run_time", "run time", 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(sttime);
+
+ rrddim_set_by_pointer(sttime, rd_run_time, str2ll(words[1], NULL));
+ rrdset_done(sttime);
+
+ }
+#ifdef DETACH_PLUGINS_FROM_NETDATA
+ else if(unlikely(first_hash == MYPID_HASH && (strcmp(words[0], "MYPID") == 0))) {
+ // debug(D_TC_LOOP, "MYPID line '%s'", words[1]);
+ char *id = words[1];
+ pid_t pid = atol(id);
+
+ if(likely(pid)) tc_child_pid = pid;
+
+ debug(D_TC_LOOP, "TC: Child PID is %d.", tc_child_pid);
+ }
+#endif
+ //else {
+ // debug(D_TC_LOOP, "IGNORED line");
+ //}
+ }
+
+ // fgets() failed or loop broke
+ int code = mypclose(fp, (pid_t)tc_child_pid);
+ tc_child_pid = 0;
+
+ if(unlikely(device)) {
+ // tc_device_free(device);
+ device = NULL;
+ class = NULL;
+ }
+
+ if(unlikely(netdata_exit)) {
+ tc_device_free_all();
+ goto cleanup;
+ }
+
+ if(code == 1 || code == 127) {
+ // 1 = DISABLE
+ // 127 = cannot even run it
+ error("TC: tc-qos-helper.sh exited with code %d. Disabling it.", code);
+
+ tc_device_free_all();
+ goto cleanup;
+ }
+
+ sleep((unsigned int) localhost->rrd_update_every);
+ }
+
+cleanup: ; // added semi-colon to prevent older gcc error: label at end of compound statement
+ netdata_thread_cleanup_pop(1);
+ return NULL;
+}