collected_number rrddim_set(RRDSET *st, const char *id, collected_number value) { RRDDIM *rd = rrddim_find(st, id); if(unlikely(!rd)) { error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id); return 0; } return rrddim_set_by_pointer(st, rd, value); }
int rrddim_unhide(RRDSET *st, const char *id) { debug(D_RRD_CALLS, "rrddim_unhide() for chart %s, dimension %s", st->name, id); RRDDIM *rd = rrddim_find(st, id); if(unlikely(!rd)) { error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id); return 1; } if(rd->flags & RRDDIM_FLAG_HIDDEN) rd->flags ^= RRDDIM_FLAG_HIDDEN; return 0; }
void *nfacct_main(void *ptr) { if(ptr) { ; } info("NFACCT thread created with task id %d", gettid()); if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0) error("nfacct.plugin: Cannot set pthread cancel type to DEFERRED."); if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0) error("nfacct.plugin: Cannot set pthread cancel state to ENABLE."); char buf[MNL_SOCKET_BUFFER_SIZE]; struct mnl_socket *nl = NULL; struct nlmsghdr *nlh = NULL; unsigned int seq = 0, portid = 0; seq = time(NULL) - 1; nl = mnl_socket_open(NETLINK_NETFILTER); if(!nl) { error("nfacct.plugin: mnl_socket_open() failed"); pthread_exit(NULL); return NULL; } if(mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) { mnl_socket_close(nl); error("nfacct.plugin: mnl_socket_bind() failed"); pthread_exit(NULL); return NULL; } portid = mnl_socket_get_portid(nl); // ------------------------------------------------------------------------ struct timeval last, now; unsigned long long usec = 0, susec = 0; RRDSET *st = NULL; gettimeofday(&last, NULL); // ------------------------------------------------------------------------ while(1) { if(unlikely(netdata_exit)) break; seq++; nlh = nfacct_nlmsg_build_hdr(buf, NFNL_MSG_ACCT_GET, NLM_F_DUMP, seq); if(!nlh) { mnl_socket_close(nl); error("nfacct.plugin: nfacct_nlmsg_build_hdr() failed"); pthread_exit(NULL); return NULL; } if(mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) { error("nfacct.plugin: mnl_socket_send"); pthread_exit(NULL); return NULL; } if(nfacct_list) nfacct_list->len = 0; int ret; while((ret = mnl_socket_recvfrom(nl, buf, sizeof(buf))) > 0) { if((ret = mnl_cb_run(buf, ret, seq, portid, nfacct_callback, NULL)) <= 0) break; } if (ret == -1) { error("nfacct.plugin: error communicating with kernel."); pthread_exit(NULL); return NULL; } // -------------------------------------------------------------------- gettimeofday(&now, NULL); usec = usecdiff(&now, &last) - susec; debug(D_NFACCT_LOOP, "nfacct.plugin: last loop took %llu usec (worked for %llu, sleeped for %llu).", usec + susec, usec, susec); if(usec < (rrd_update_every * 1000000ULL / 2ULL)) susec = (rrd_update_every * 1000000ULL) - usec; else susec = rrd_update_every * 1000000ULL / 2ULL; // -------------------------------------------------------------------- if(nfacct_list && nfacct_list->len) { int i; st = rrdset_find_bytype("netfilter", "nfacct_packets"); if(!st) { st = rrdset_create("netfilter", "nfacct_packets", NULL, "nfacct", NULL, "Netfilter Accounting Packets", "packets/s", 1006, rrd_update_every, RRDSET_TYPE_STACKED); for(i = 0; i < nfacct_list->len ; i++) rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL); } else rrdset_next(st); for(i = 0; i < nfacct_list->len ; i++) { RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name); if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL); if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].pkts); } rrdset_done(st); // ---------------------------------------------------------------- st = rrdset_find_bytype("netfilter", "nfacct_bytes"); if(!st) { st = rrdset_create("netfilter", "nfacct_bytes", NULL, "nfacct", NULL, "Netfilter Accounting Bandwidth", "kilobytes/s", 1007, rrd_update_every, RRDSET_TYPE_STACKED); for(i = 0; i < nfacct_list->len ; i++) rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL); } else rrdset_next(st); for(i = 0; i < nfacct_list->len ; i++) { RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name); if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL); if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].bytes); } rrdset_done(st); } // -------------------------------------------------------------------- usleep(susec); // copy current to last bcopy(&now, &last, sizeof(struct timeval)); } mnl_socket_close(nl); pthread_exit(NULL); return NULL; }
int do_proc_interrupts(int update_every, usec_t dt) { (void)dt; static procfile *ff = NULL; static int cpus = -1, do_per_core = -1; struct interrupt *irrs = NULL; if(unlikely(do_per_core == -1)) do_per_core = config_get_boolean("plugin:proc:/proc/interrupts", "interrupts per core", 1); if(unlikely(!ff)) { char filename[FILENAME_MAX + 1]; snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/interrupts"); ff = procfile_open(config_get("plugin:proc:/proc/interrupts", "filename to monitor", filename), " \t", PROCFILE_FLAG_DEFAULT); } if(unlikely(!ff)) return 1; ff = procfile_readall(ff); if(unlikely(!ff)) return 0; // we return 0, so that we will retry to open it next time uint32_t lines = procfile_lines(ff), l; uint32_t words = procfile_linewords(ff, 0); if(unlikely(!lines)) { error("Cannot read /proc/interrupts, zero lines reported."); return 1; } // find how many CPUs are there if(unlikely(cpus == -1)) { uint32_t w; cpus = 0; for(w = 0; w < words ; w++) { if(likely(strncmp(procfile_lineword(ff, 0, w), "CPU", 3) == 0)) cpus++; } } if(unlikely(!cpus)) { error("PLUGIN: PROC_INTERRUPTS: Cannot find the number of CPUs in /proc/interrupts"); return 1; } // allocate the size we need; irrs = get_interrupts_array(lines, cpus); irrs[0].used = 0; // loop through all lines for(l = 1; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); irr->used = 0; irr->total = 0; words = procfile_linewords(ff, l); if(unlikely(!words)) continue; irr->id = procfile_lineword(ff, l, 0); if(unlikely(!irr->id || !irr->id[0])) continue; int idlen = strlen(irr->id); if(unlikely(irr->id[idlen - 1] == ':')) irr->id[idlen - 1] = '\0'; int c; for(c = 0; c < cpus ;c++) { if(likely((c + 1) < (int)words)) irr->cpu[c].value = strtoull(procfile_lineword(ff, l, (uint32_t)(c + 1)), NULL, 10); else irr->cpu[c].value = 0; irr->total += irr->cpu[c].value; } if(unlikely(isdigit(irr->id[0]) && (uint32_t)(cpus + 2) < words)) { strncpyz(irr->name, procfile_lineword(ff, l, words - 1), MAX_INTERRUPT_NAME); int nlen = strlen(irr->name); int idlen = strlen(irr->id); if(likely(nlen + 1 + idlen <= MAX_INTERRUPT_NAME)) { irr->name[nlen] = '_'; strncpyz(&irr->name[nlen + 1], irr->id, MAX_INTERRUPT_NAME - nlen - 1); } else { irr->name[MAX_INTERRUPT_NAME - idlen - 1] = '_'; strncpyz(&irr->name[MAX_INTERRUPT_NAME - idlen], irr->id, idlen); } } else { strncpyz(irr->name, irr->id, MAX_INTERRUPT_NAME); } irr->used = 1; } RRDSET *st; // -------------------------------------------------------------------- st = rrdset_find_bytype("system", "interrupts"); if(unlikely(!st)) st = rrdset_create("system", "interrupts", NULL, "interrupts", NULL, "System interrupts", "interrupts/s", 1000, update_every, RRDSET_TYPE_STACKED); else rrdset_next(st); for(l = 0; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(unlikely(!irr->used)) continue; // some interrupt may have changed without changing the total number of lines // if the same number of interrupts have been added and removed between two // calls of this function. if(unlikely(!irr->rd || strncmp(irr->rd->name, irr->name, MAX_INTERRUPT_NAME) != 0)) { irr->rd = rrddim_find(st, irr->id); if(unlikely(!irr->rd)) irr->rd = rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL); else rrddim_set_name(st, irr->rd, irr->name); // also reset per cpu RRDDIMs to avoid repeating strncmp() in the per core loop if(likely(do_per_core)) { int c; for (c = 0; c < cpus ;c++) irr->cpu[c].rd = NULL; } } rrddim_set_by_pointer(st, irr->rd, irr->total); } rrdset_done(st); if(likely(do_per_core)) { int c; for(c = 0; c < cpus ;c++) { char id[50+1]; snprintfz(id, 50, "cpu%d_interrupts", c); st = rrdset_find_bytype("cpu", id); if(unlikely(!st)) { char title[100+1]; snprintfz(title, 100, "CPU%d Interrupts", c); st = rrdset_create("cpu", id, NULL, "interrupts", "cpu.interrupts", title, "interrupts/s", 1100 + c, update_every, RRDSET_TYPE_STACKED); } else rrdset_next(st); for(l = 0; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(unlikely(!irr->used)) continue; if(unlikely(!irr->cpu[c].rd)) { irr->cpu[c].rd = rrddim_find(st, irr->id); if(unlikely(!irr->cpu[c].rd)) irr->cpu[c].rd = rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL); else rrddim_set_name(st, irr->cpu[c].rd, irr->name); } rrddim_set_by_pointer(st, irr->cpu[c].rd, irr->cpu[c].value); } rrdset_done(st); } } return 0; }
static inline void tc_device_commit(struct tc_device *d) { static int enable_new_interfaces = -1; if(enable_new_interfaces == -1) enable_new_interfaces = config_get_boolean("plugin:tc", "enable new interfaces detected at runtime", 1); // we only need to add leaf classes struct tc_class *c, *x; // set all classes for(c = d->classes ; c ; c = c->next) { c->isleaf = 1; c->hasparent = 0; } // mark the classes as leafs and parents for(c = d->classes ; c ; c = c->next) { if(!c->updated) continue; for(x = d->classes ; x ; x = x->next) { if(!x->updated) continue; if(c == x) continue; if(x->parentid && ( ( 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', class '%s' (leafid: '%s') has as leaf class '%s' (parentid: '%s').", d->name?d->name:d->id, c->name?c->name:c->id, c->leafid?c->leafid:c->id, x->name?x->name:x->id, x->parentid?x->parentid:x->id); c->isleaf = 0; x->hasparent = 1; } } } // debugging: /* for ( c = d->classes ; c ; c = c->next) { if(c->isleaf && c->hasparent) debug(D_TC_LOOP, "TC: Device %s, class %s, OK", d->name, c->id); else debug(D_TC_LOOP, "TC: Device %s, class %s, IGNORE (isleaf: %d, hasparent: %d, parent: %s)", d->name, c->id, c->isleaf, c->hasparent, c->parentid); } */ // we need at least a class for(c = d->classes ; c ; c = c->next) { // debug(D_TC_LOOP, "TC: Device '%s', class '%s', isLeaf=%d, HasParent=%d, Seen=%d", d->name?d->name:d->id, c->name?c->name:c->id, c->isleaf, c->hasparent, c->seen); if(!c->updated) continue; if(c->isleaf && c->hasparent) break; } if(!c) { debug(D_TC_LOOP, "TC: Ignoring TC device '%s'. No leaf classes.", d->name?d->name:d->id); tc_device_classes_cleanup(d); return; } char var_name[CONFIG_MAX_NAME + 1]; snprintfz(var_name, CONFIG_MAX_NAME, "qos for %s", d->id); if(config_get_boolean("plugin:tc", var_name, enable_new_interfaces)) { RRDSET *st = rrdset_find_bytype(RRD_TYPE_TC, d->id); if(!st) { debug(D_TC_LOOP, "TC: Creating new chart for device '%s'", d->name?d->name:d->id); st = 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, RRDSET_TYPE_STACKED); for(c = d->classes ; c ; c = c->next) { if(!c->updated) continue; if(c->isleaf && c->hasparent) rrddim_add(st, c->id, c->name?c->name:c->id, 8, 1024, RRDDIM_INCREMENTAL); } } else { debug(D_TC_LOOP, "TC: Updating chart for device '%s'", d->name?d->name:d->id); rrdset_next_plugins(st); if(d->name && strcmp(d->id, d->name) != 0) rrdset_set_name(st, d->name); } for(c = d->classes ; c ; c = c->next) { if(!c->updated) continue; if(c->isleaf && c->hasparent) { RRDDIM *rd = rrddim_find(st, c->id); if(!rd) { debug(D_TC_LOOP, "TC: Adding to chart '%s', dimension '%s'", st->id, c->id, c->name); // new class, we have to add it rd = rrddim_add(st, c->id, c->name?c->name:c->id, 8, 1024, RRDDIM_INCREMENTAL); } else debug(D_TC_LOOP, "TC: Updating chart '%s', dimension '%s'", st->id, c->id); rrddim_set_by_pointer(st, rd, c->bytes); // if it has a name, different to the id if(c->name) { // update the rrd dimension with the new name debug(D_TC_LOOP, "TC: Setting chart '%s', dimension '%s' name to '%s'", st->id, rd->id, c->name); rrddim_set_name(st, rd, c->name); free(c->name); c->name = NULL; } } } rrdset_done(st); } tc_device_classes_cleanup(d); }
void *pluginsd_worker_thread(void *arg) { struct plugind *cd = (struct plugind *)arg; char line[PLUGINSD_LINE_MAX + 1]; #ifdef DETACH_PLUGINS_FROM_NETDATA unsigned long long usec = 0, susec = 0; struct timeval last = {0, 0} , now = {0, 0}; #endif char *words[MAX_WORDS] = { NULL }; uint32_t SET_HASH = simple_hash("SET"); uint32_t BEGIN_HASH = simple_hash("BEGIN"); uint32_t END_HASH = simple_hash("END"); uint32_t FLUSH_HASH = simple_hash("FLUSH"); uint32_t CHART_HASH = simple_hash("CHART"); uint32_t DIMENSION_HASH = simple_hash("DIMENSION"); uint32_t DISABLE_HASH = simple_hash("DISABLE"); #ifdef DETACH_PLUGINS_FROM_NETDATA uint32_t MYPID_HASH = simple_hash("MYPID"); uint32_t STOPPING_WAKE_ME_UP_PLEASE_HASH = simple_hash("STOPPING_WAKE_ME_UP_PLEASE"); #endif while(likely(1)) { if(unlikely(netdata_exit)) break; FILE *fp = mypopen(cd->cmd, &cd->pid); if(unlikely(!fp)) { error("Cannot popen(\"%s\", \"r\").", cd->cmd); break; } info("PLUGINSD: '%s' running on pid %d", cd->fullfilename, cd->pid); RRDSET *st = NULL; unsigned long long count = 0; char *s; uint32_t hash; while(likely(fgets(line, PLUGINSD_LINE_MAX, fp) != NULL)) { if(unlikely(netdata_exit)) break; line[PLUGINSD_LINE_MAX] = '\0'; // debug(D_PLUGINSD, "PLUGINSD: %s: %s", cd->filename, line); int w = pluginsd_split_words(line, words, MAX_WORDS); s = words[0]; if(unlikely(!s || !*s || !w)) { // debug(D_PLUGINSD, "PLUGINSD: empty line"); continue; } // debug(D_PLUGINSD, "PLUGINSD: words 0='%s' 1='%s' 2='%s' 3='%s' 4='%s' 5='%s' 6='%s' 7='%s' 8='%s' 9='%s'", words[0], words[1], words[2], words[3], words[4], words[5], words[6], words[7], words[8], words[9]); hash = simple_hash(s); if(likely(hash == SET_HASH && !strcmp(s, "SET"))) { char *dimension = words[1]; char *value = words[2]; if(unlikely(!dimension || !*dimension)) { error("PLUGINSD: '%s' is requesting a SET on chart '%s', without a dimension. Disabling it.", cd->fullfilename, st->id); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } if(unlikely(!value || !*value)) value = NULL; if(unlikely(!st)) { error("PLUGINSD: '%s' is requesting a SET on dimension %s with value %s, without a BEGIN. Disabling it.", cd->fullfilename, dimension, value?value:"<nothing>"); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } if(unlikely(st->debug)) debug(D_PLUGINSD, "PLUGINSD: '%s' is setting dimension %s/%s to %s", cd->fullfilename, st->id, dimension, value?value:"<nothing>"); if(value) rrddim_set(st, dimension, atoll(value)); count++; } else if(likely(hash == BEGIN_HASH && !strcmp(s, "BEGIN"))) { char *id = words[1]; char *microseconds_txt = words[2]; if(unlikely(!id)) { error("PLUGINSD: '%s' is requesting a BEGIN without a chart id. Disabling it.", cd->fullfilename); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } st = rrdset_find(id); if(unlikely(!st)) { error("PLUGINSD: '%s' is requesting a BEGIN on chart '%s', which does not exist. Disabling it.", cd->fullfilename, id); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } if(likely(st->counter_done)) { unsigned long long microseconds = 0; if(microseconds_txt && *microseconds_txt) microseconds = strtoull(microseconds_txt, NULL, 10); if(microseconds) rrdset_next_usec(st, microseconds); else rrdset_next_plugins(st); } } else if(likely(hash == END_HASH && !strcmp(s, "END"))) { if(unlikely(!st)) { error("PLUGINSD: '%s' is requesting an END, without a BEGIN. Disabling it.", cd->fullfilename); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } if(unlikely(st->debug)) debug(D_PLUGINSD, "PLUGINSD: '%s' is requesting a END on chart %s", cd->fullfilename, st->id); rrdset_done(st); st = NULL; } else if(likely(hash == FLUSH_HASH && !strcmp(s, "FLUSH"))) { debug(D_PLUGINSD, "PLUGINSD: '%s' is requesting a FLUSH", cd->fullfilename); st = NULL; } else if(likely(hash == CHART_HASH && !strcmp(s, "CHART"))) { st = NULL; char *type = words[1]; char *id = NULL; if(likely(type)) { id = strchr(type, '.'); if(likely(id)) { *id = '\0'; id++; } } char *name = words[2]; char *title = words[3]; char *units = words[4]; char *family = words[5]; char *category = words[6]; char *chart = words[7]; char *priority_s = words[8]; char *update_every_s = words[9]; if(unlikely(!type || !*type || !id || !*id)) { error("PLUGINSD: '%s' is requesting a CHART, without a type.id. Disabling it.", cd->fullfilename); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } int priority = 1000; if(likely(priority_s)) priority = atoi(priority_s); int update_every = cd->update_every; if(likely(update_every_s)) update_every = atoi(update_every_s); if(unlikely(!update_every)) update_every = cd->update_every; int chart_type = RRDSET_TYPE_LINE; if(unlikely(chart)) chart_type = rrdset_type_id(chart); if(unlikely(!name || !*name)) name = NULL; if(unlikely(!family || !*family)) family = id; if(unlikely(!category || !*category)) category = type; st = rrdset_find_bytype(type, id); if(unlikely(!st)) { debug(D_PLUGINSD, "PLUGINSD: Creating chart type='%s', id='%s', name='%s', family='%s', category='%s', chart='%s', priority=%d, update_every=%d" , type, id , name?name:"" , family?family:"" , category?category:"" , rrdset_type_name(chart_type) , priority , update_every ); st = rrdset_create(type, id, name, family, title, units, priority, update_every, chart_type); cd->update_every = update_every; if(unlikely(strcmp(category, "none") == 0)) st->isdetail = 1; } else debug(D_PLUGINSD, "PLUGINSD: Chart '%s' already exists. Not adding it again.", st->id); } else if(likely(hash == DIMENSION_HASH && !strcmp(s, "DIMENSION"))) { char *id = words[1]; char *name = words[2]; char *algorithm = words[3]; char *multiplier_s = words[4]; char *divisor_s = words[5]; char *options = words[6]; if(unlikely(!id || !*id)) { error("PLUGINSD: '%s' is requesting a DIMENSION, without an id. Disabling it.", cd->fullfilename); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } if(unlikely(!st)) { error("PLUGINSD: '%s' is requesting a DIMENSION, without a CHART. Disabling it.", cd->fullfilename); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } long multiplier = 1; if(multiplier_s && *multiplier_s) multiplier = atol(multiplier_s); if(unlikely(!multiplier)) multiplier = 1; long divisor = 1; if(likely(divisor_s && *divisor_s)) divisor = atol(divisor_s); if(unlikely(!divisor)) divisor = 1; if(unlikely(!algorithm || !*algorithm)) algorithm = "absolute"; if(unlikely(st->debug)) debug(D_PLUGINSD, "PLUGINSD: Creating dimension in chart %s, id='%s', name='%s', algorithm='%s', multiplier=%ld, divisor=%ld, hidden='%s'" , st->id , id , name?name:"" , rrddim_algorithm_name(rrddim_algorithm_id(algorithm)) , multiplier , divisor , options?options:"" ); RRDDIM *rd = rrddim_find(st, id); if(unlikely(!rd)) { rd = rrddim_add(st, id, name, multiplier, divisor, rrddim_algorithm_id(algorithm)); rd->flags = 0x00000000; if(options && *options) { if(strstr(options, "hidden") != NULL) rd->flags |= RRDDIM_FLAG_HIDDEN; if(strstr(options, "noreset") != NULL) rd->flags |= RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS; if(strstr(options, "nooverflow") != NULL) rd->flags |= RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS; } } else if(unlikely(st->debug)) debug(D_PLUGINSD, "PLUGINSD: dimension %s/%s already exists. Not adding it again.", st->id, id); } else if(unlikely(hash == DISABLE_HASH && !strcmp(s, "DISABLE"))) { error("PLUGINSD: '%s' called DISABLE. Disabling it.", cd->fullfilename); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } #ifdef DETACH_PLUGINS_FROM_NETDATA else if(likely(hash == MYPID_HASH && !strcmp(s, "MYPID"))) { char *pid_s = words[1]; pid_t pid = atol(pid_s); if(likely(pid)) cd->pid = pid; debug(D_PLUGINSD, "PLUGINSD: %s is on pid %d", cd->id, cd->pid); } else if(likely(hash == STOPPING_WAKE_ME_UP_PLEASE_HASH && !strcmp(s, "STOPPING_WAKE_ME_UP_PLEASE"))) { error("PLUGINSD: '%s' (pid %d) called STOPPING_WAKE_ME_UP_PLEASE.", cd->fullfilename, cd->pid); gettimeofday(&now, NULL); if(unlikely(!usec && !susec)) { // our first run susec = cd->rrd_update_every * 1000000ULL; } else { // second+ run usec = usecdiff(&now, &last) - susec; error("PLUGINSD: %s last loop took %llu usec (worked for %llu, sleeped for %llu).\n", cd->fullfilename, usec + susec, usec, susec); if(unlikely(usec < (rrd_update_every * 1000000ULL / 2ULL))) susec = (rrd_update_every * 1000000ULL) - usec; else susec = rrd_update_every * 1000000ULL / 2ULL; } error("PLUGINSD: %s sleeping for %llu. Will kill with SIGCONT pid %d to wake it up.\n", cd->fullfilename, susec, cd->pid); usleep(susec); killpid(cd->pid, SIGCONT); bcopy(&now, &last, sizeof(struct timeval)); break; } #endif else { error("PLUGINSD: '%s' is sending command '%s' which is not known by netdata. Disabling it.", cd->fullfilename, s); cd->enabled = 0; killpid(cd->pid, SIGTERM); break; } } info("PLUGINSD: '%s' on pid %d stopped.", cd->fullfilename, cd->pid); // fgets() failed or loop broke int code = mypclose(fp, cd->pid); if(code == 1 || code == 127) { // 1 = DISABLE // 127 = cannot even run it error("PLUGINSD: '%s' (pid %d) exited with code %d. Disabling it.", cd->fullfilename, cd->pid, code); cd->enabled = 0; } if(netdata_exit) { cd->pid = 0; cd->enabled = 0; cd->obsolete = 1; return NULL; } if(unlikely(!count && cd->enabled)) { error("PLUGINSD: '%s' (pid %d) does not generate usefull output. Waiting a bit before starting it again.", cd->fullfilename, cd->pid); sleep((unsigned int) (cd->update_every * 10)); } cd->pid = 0; if(likely(cd->enabled)) sleep((unsigned int) cd->update_every); else break; } cd->obsolete = 1; return NULL; }
int do_proc_softirqs(int update_every, usec_t dt) { (void)dt; static procfile *ff = NULL; static int cpus = -1, do_per_core = -1; struct interrupt *irrs = NULL; if(unlikely(do_per_core == -1)) do_per_core = config_get_boolean("plugin:proc:/proc/softirqs", "interrupts per core", 1); if(unlikely(!ff)) { char filename[FILENAME_MAX + 1]; snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/softirqs"); ff = procfile_open(config_get("plugin:proc:/proc/softirqs", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT); if(unlikely(!ff)) return 1; } ff = procfile_readall(ff); if(unlikely(!ff)) return 0; // we return 0, so that we will retry to open it next time size_t lines = procfile_lines(ff), l; size_t words = procfile_linewords(ff, 0); if(unlikely(!lines)) { error("Cannot read /proc/softirqs, zero lines reported."); return 1; } // find how many CPUs are there if(unlikely(cpus == -1)) { uint32_t w; cpus = 0; for(w = 0; w < words ; w++) { if(likely(strncmp(procfile_lineword(ff, 0, w), "CPU", 3) == 0)) cpus++; } } if(unlikely(!cpus)) { error("PLUGIN: PROC_SOFTIRQS: Cannot find the number of CPUs in /proc/softirqs"); return 1; } // allocate the size we need; irrs = get_interrupts_array(lines, cpus); irrs[0].used = 0; // loop through all lines for(l = 1; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); irr->used = 0; irr->total = 0; words = procfile_linewords(ff, l); if(unlikely(!words)) continue; irr->id = procfile_lineword(ff, l, 0); if(unlikely(!irr->id || !irr->id[0])) continue; int c; for(c = 0; c < cpus ;c++) { if(likely((c + 1) < (int)words)) irr->cpu[c].value = str2ull(procfile_lineword(ff, l, (uint32_t)(c + 1))); else irr->cpu[c].value = 0; irr->total += irr->cpu[c].value; } strncpyz(irr->name, irr->id, MAX_INTERRUPT_NAME); irr->used = 1; } // -------------------------------------------------------------------- static RRDSET *st_system_softirqs = NULL; if(unlikely(!st_system_softirqs)) st_system_softirqs = rrdset_create_localhost( "system" , "softirqs" , NULL , "softirqs" , NULL , "System softirqs" , "softirqs/s" , PLUGIN_PROC_NAME , PLUGIN_PROC_MODULE_SOFTIRQS_NAME , NETDATA_CHART_PRIO_SYSTEM_SOFTIRQS , update_every , RRDSET_TYPE_STACKED ); else rrdset_next(st_system_softirqs); for(l = 0; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(unlikely(!irr->used)) continue; // some interrupt may have changed without changing the total number of lines // if the same number of interrupts have been added and removed between two // calls of this function. if(unlikely(!irr->rd || strncmp(irr->name, irr->rd->name, MAX_INTERRUPT_NAME) != 0)) { irr->rd = rrddim_find(st_system_softirqs, irr->id); if(unlikely(!irr->rd)) irr->rd = rrddim_add(st_system_softirqs, irr->id, irr->name, 1, 1, RRD_ALGORITHM_INCREMENTAL); else rrddim_set_name(st_system_softirqs, irr->rd, irr->name); // also reset per cpu RRDDIMs to avoid repeating strncmp() in the per core loop if(likely(do_per_core)) { int c; for (c = 0; c < cpus ;c++) irr->cpu[c].rd = NULL; } } rrddim_set_by_pointer(st_system_softirqs, irr->rd, irr->total); } rrdset_done(st_system_softirqs); // -------------------------------------------------------------------- if(do_per_core) { static RRDSET **core_st = NULL; static int old_cpus = 0; if(old_cpus < cpus) { core_st = reallocz(core_st, sizeof(RRDSET *) * cpus); memset(&core_st[old_cpus], 0, sizeof(RRDSET *) * (cpus - old_cpus)); old_cpus = cpus; } int c; for(c = 0; c < cpus ; c++) { if(unlikely(!core_st[c])) { // find if everything is just zero unsigned long long core_sum = 0; for (l = 0; l < lines; l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if (unlikely(!irr->used)) continue; core_sum += irr->cpu[c].value; } if (unlikely(core_sum == 0)) continue; // try next core char id[50 + 1]; snprintfz(id, 50, "cpu%d_softirqs", c); char title[100 + 1]; snprintfz(title, 100, "CPU%d softirqs", c); core_st[c] = rrdset_create_localhost( "cpu" , id , NULL , "softirqs" , "cpu.softirqs" , title , "softirqs/s" , PLUGIN_PROC_NAME , PLUGIN_PROC_MODULE_SOFTIRQS_NAME , NETDATA_CHART_PRIO_SOFTIRQS_PER_CORE + c , update_every , RRDSET_TYPE_STACKED ); } else rrdset_next(core_st[c]); for(l = 0; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(unlikely(!irr->used)) continue; if(unlikely(!irr->cpu[c].rd)) { irr->cpu[c].rd = rrddim_find(core_st[c], irr->id); if(unlikely(!irr->cpu[c].rd)) irr->cpu[c].rd = rrddim_add(core_st[c], irr->id, irr->name, 1, 1, RRD_ALGORITHM_INCREMENTAL); else rrddim_set_name(core_st[c], irr->cpu[c].rd, irr->name); } rrddim_set_by_pointer(core_st[c], irr->cpu[c].rd, irr->cpu[c].value); } rrdset_done(core_st[c]); } } return 0; }