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;
}
