-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <sys/types.h>
-#include <dirent.h>
-#include <pthread.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <signal.h>
-
-#include "main.h"
#include "common.h"
-#include "appconfig.h"
-#include "log.h"
-#include "rrd.h"
-#include "popen.h"
-#include "plugins_d.h"
struct plugind *pluginsd_root = NULL;
#define MAX_WORDS 20
static inline int pluginsd_space(char c) {
- switch(c) {
- case ' ':
- case '\t':
- case '\r':
- case '\n':
- case '=':
- return 1;
-
- default:
- return 0;
- }
+ switch(c) {
+ case ' ':
+ case '\t':
+ case '\r':
+ case '\n':
+ case '=':
+ return 1;
+
+ default:
+ return 0;
+ }
}
static int pluginsd_split_words(char *str, char **words, int max_words) {
- char *s = str, quote = 0;
- int i = 0, j;
-
- // skip all white space
- while(unlikely(pluginsd_space(*s))) s++;
-
- // check for quote
- if(unlikely(*s == '\'' || *s == '"')) {
- quote = *s; // remember the quote
- s++; // skip the quote
- }
-
- // store the first word
- words[i++] = s;
-
- // while we have something
- while(likely(*s)) {
- // if it is escape
- if(unlikely(*s == '\\' && s[1])) {
- s += 2;
- continue;
- }
-
- // if it is quote
- else if(unlikely(*s == quote)) {
- quote = 0;
- *s = ' ';
- continue;
- }
-
- // if it is a space
- else if(unlikely(quote == 0 && pluginsd_space(*s))) {
-
- // terminate the word
- *s++ = '\0';
-
- // skip all white space
- while(likely(pluginsd_space(*s))) s++;
-
- // check for quote
- if(unlikely(*s == '\'' || *s == '"')) {
- quote = *s; // remember the quote
- s++; // skip the quote
- }
-
- // if we reached the end, stop
- if(unlikely(!*s)) break;
-
- // store the next word
- if(likely(i < max_words)) words[i++] = s;
- else break;
- }
-
- // anything else
- else s++;
- }
-
- // terminate the words
- j = i;
- while(likely(j < max_words)) words[j++] = NULL;
-
- return i;
+ char *s = str, quote = 0;
+ int i = 0, j;
+
+ // skip all white space
+ while(unlikely(pluginsd_space(*s))) s++;
+
+ // check for quote
+ if(unlikely(*s == '\'' || *s == '"')) {
+ quote = *s; // remember the quote
+ s++; // skip the quote
+ }
+
+ // store the first word
+ words[i++] = s;
+
+ // while we have something
+ while(likely(*s)) {
+ // if it is escape
+ if(unlikely(*s == '\\' && s[1])) {
+ s += 2;
+ continue;
+ }
+
+ // if it is quote
+ else if(unlikely(*s == quote)) {
+ quote = 0;
+ *s = ' ';
+ continue;
+ }
+
+ // if it is a space
+ else if(unlikely(quote == 0 && pluginsd_space(*s))) {
+
+ // terminate the word
+ *s++ = '\0';
+
+ // skip all white space
+ while(likely(pluginsd_space(*s))) s++;
+
+ // check for quote
+ if(unlikely(*s == '\'' || *s == '"')) {
+ quote = *s; // remember the quote
+ s++; // skip the quote
+ }
+
+ // if we reached the end, stop
+ if(unlikely(!*s)) break;
+
+ // store the next word
+ if(likely(i < max_words)) words[i++] = s;
+ else break;
+ }
+
+ // anything else
+ else s++;
+ }
+
+ // terminate the words
+ j = i;
+ while(likely(j < max_words)) words[j++] = NULL;
+
+ return i;
}
+inline size_t pluginsd_process(RRDHOST *host, struct plugind *cd, FILE *fp, int trust_durations) {
+ int enabled = cd->enabled;
+
+ if(!fp || !enabled) {
+ cd->enabled = 0;
+ return 0;
+ }
+
+ size_t count = 0;
+
+ char line[PLUGINSD_LINE_MAX + 1];
+
+ char *words[MAX_WORDS] = { NULL };
+ /* uint32_t HOST_HASH = simple_hash("HOST"); */
+ 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");
+
+ RRDSET *st = NULL;
+ uint32_t hash;
+
+ errno = 0;
+ clearerr(fp);
+
+ if(unlikely(fileno(fp) == -1)) {
+ error("PLUGINSD: %s: file is not a valid stream.", cd->fullfilename);
+ goto cleanup;
+ }
+
+ while(!ferror(fp)) {
+ if(unlikely(netdata_exit)) break;
+
+ char *r = fgets(line, PLUGINSD_LINE_MAX, fp);
+ if(unlikely(!r)) {
+ error("PLUGINSD: %s : read failed.", cd->fullfilename);
+ break;
+ }
+
+ 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);
+ char *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]);
+
+ if(likely(!simple_hash_strcmp(s, "SET", &hash))) {
+ char *dimension = words[1];
+ char *value = words[2];
+
+ if(unlikely(!dimension || !*dimension)) {
+ error("PLUGINSD: '%s' is requesting a SET on chart '%s' of host '%s', without a dimension. Disabling it.", cd->fullfilename, st->id, host->hostname);
+ enabled = 0;
+ break;
+ }
+
+ if(unlikely(!value || !*value)) value = NULL;
+
+ if(unlikely(!st)) {
+ error("PLUGINSD: '%s' is requesting a SET on dimension %s with value %s on host '%s', without a BEGIN. Disabling it.", cd->fullfilename, dimension, value?value:"<nothing>", host->hostname);
+ enabled = 0;
+ break;
+ }
+
+ if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_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, strtoll(value, NULL, 0));
+ }
+ 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 for host '%s'. Disabling it.", cd->fullfilename, host->hostname);
+ enabled = 0;
+ break;
+ }
+
+ st = rrdset_find(host, id);
+ if(unlikely(!st)) {
+ error("PLUGINSD: '%s' is requesting a BEGIN on chart '%s', which does not exist on host '%s'. Disabling it.", cd->fullfilename, id, host->hostname);
+ enabled = 0;
+ break;
+ }
+
+ if(likely(st->counter_done)) {
+ usec_t microseconds = 0;
+ if(microseconds_txt && *microseconds_txt) microseconds = str2ull(microseconds_txt);
+
+ if(likely(microseconds)) {
+ if(trust_durations)
+ rrdset_next_usec_unfiltered(st, microseconds);
+ else
+ rrdset_next_usec(st, microseconds);
+ }
+ else rrdset_next(st);
+ }
+ }
+ else if(likely(hash == END_HASH && !strcmp(s, "END"))) {
+ if(unlikely(!st)) {
+ error("PLUGINSD: '%s' is requesting an END, without a BEGIN on host '%s'. Disabling it.", cd->fullfilename, host->hostname);
+ enabled = 0;
+ break;
+ }
+
+ if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_DEBUG))) debug(D_PLUGINSD, "PLUGINSD: '%s' is requesting an END on chart %s", cd->fullfilename, st->id);
+
+ rrdset_done(st);
+ st = NULL;
+
+ count++;
+ }
+/* else if(likely(hash == HOST_HASH && !strcmp(s, "HOST"))) {
+ char *guid = words[1];
+ char *hostname = words[2];
+
+ if(unlikely(!guid || !*guid)) {
+ error("PLUGINSD: '%s' is requesting HOST with guid '%s' and hostname '%s', without a guid. Disabling it.", cd->fullfilename, guid?guid:"", hostname?hostname:"");
+ enabled = 0;
+ break;
+ }
+ if(unlikely(!hostname || !*hostname)) {
+ error("PLUGINSD: '%s' is requesting HOST with guid '%s' and hostname '%s', without a hostname. Disabling it.", cd->fullfilename, guid?guid:"", hostname?hostname:"");
+ enabled = 0;
+ break;
+ }
+
+ host = rrdhost_find_or_create(hostname, guid);
+ } */
+ 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"))) {
+ int noname = 0;
+ st = NULL;
+
+ if((words[1]) != NULL && (words[2]) != NULL && strcmp(words[1], words[2]) == 0)
+ noname = 1;
+
+ 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 *context = 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, on host '%s'. Disabling it.", cd->fullfilename, host->hostname);
+ enabled = 0;
+ break;
+ }
+
+ int priority = 1000;
+ if(likely(priority_s)) priority = str2i(priority_s);
+
+ int update_every = cd->update_every;
+ if(likely(update_every_s)) update_every = str2i(update_every_s);
+ if(unlikely(!update_every)) update_every = cd->update_every;
+
+ RRDSET_TYPE chart_type = RRDSET_TYPE_LINE;
+ if(unlikely(chart)) chart_type = rrdset_type_id(chart);
+
+ if(unlikely(noname || !name || !*name || strcasecmp(name, "NULL") == 0 || strcasecmp(name, "(NULL)") == 0)) name = NULL;
+ if(unlikely(!family || !*family)) family = NULL;
+ if(unlikely(!context || !*context)) context = NULL;
+
+ st = rrdset_find_bytype(host, type, id);
+ if(unlikely(!st)) {
+ debug(D_PLUGINSD, "PLUGINSD: Creating chart type='%s', id='%s', name='%s', family='%s', context='%s', chart='%s', priority=%d, update_every=%d"
+ , type, id
+ , name?name:""
+ , family?family:""
+ , context?context:""
+ , rrdset_type_name(chart_type)
+ , priority
+ , update_every
+ );
+
+ st = rrdset_create(host, type, id, name, family, context, title, units, priority, update_every, chart_type);
+ cd->update_every = update_every;
+ }
+ 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, host '%s' and chart '%s'. Disabling it.", cd->fullfilename, host->hostname, st?st->id:"UNSET");
+ enabled = 0;
+ break;
+ }
+
+ if(unlikely(!st)) {
+ error("PLUGINSD: '%s' is requesting a DIMENSION, without a CHART, on host '%s'. Disabling it.", cd->fullfilename, host->hostname);
+ enabled = 0;
+ break;
+ }
+
+ long multiplier = 1;
+ if(multiplier_s && *multiplier_s) multiplier = strtol(multiplier_s, NULL, 0);
+ if(unlikely(!multiplier)) multiplier = 1;
+
+ long divisor = 1;
+ if(likely(divisor_s && *divisor_s)) divisor = strtol(divisor_s, NULL, 0);
+ if(unlikely(!divisor)) divisor = 1;
+
+ if(unlikely(!algorithm || !*algorithm)) algorithm = "absolute";
+
+ if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_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:""
+ , rrd_algorithm_name(rrd_algorithm_id(algorithm))
+ , multiplier
+ , divisor
+ , options?options:""
+ );
+
+ RRDDIM *rd = rrddim_find(st, id);
+ if(unlikely(!rd)) {
+ rd = rrddim_add(st, id, name, multiplier, divisor, rrd_algorithm_id(algorithm));
+ rrddim_flag_clear(rd, RRDDIM_FLAG_HIDDEN);
+ rrddim_flag_clear(rd, RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS);
+ if(options && *options) {
+ if(strstr(options, "hidden") != NULL) rrddim_flag_set(rd, RRDDIM_FLAG_HIDDEN);
+ if(strstr(options, "noreset") != NULL) rrddim_flag_set(rd, RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS);
+ if(strstr(options, "nooverflow") != NULL) rrddim_flag_set(rd, RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS);
+ }
+ }
+ else if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_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"))) {
+ info("PLUGINSD: '%s' called DISABLE. Disabling it.", cd->fullfilename);
+ enabled = 0;
+ break;
+ }
+ else {
+ error("PLUGINSD: '%s' is sending command '%s' which is not known by netdata, for host '%s'. Disabling it.", cd->fullfilename, s, host->hostname);
+ enabled = 0;
+ break;
+ }
+ }
+
+cleanup:
+ cd->enabled = enabled;
+
+ if(likely(count)) {
+ cd->successful_collections += count;
+ cd->serial_failures = 0;
+ }
+ else
+ cd->serial_failures++;
+
+ return count;
+}
-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 an 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"))) {
- int noname = 0;
- st = NULL;
-
- if((words[1]) != NULL && (words[2]) != NULL && strcmp(words[1], words[2]) == 0)
- noname = 1;
-
- 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 *context = 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(noname || !name || !*name || strcasecmp(name, "NULL") == 0 || strcasecmp(name, "(NULL)") == 0)) name = NULL;
- if(unlikely(!family || !*family)) family = NULL;
- if(unlikely(!context || !*context)) context = NULL;
-
- st = rrdset_find_bytype(type, id);
- if(unlikely(!st)) {
- debug(D_PLUGINSD, "PLUGINSD: Creating chart type='%s', id='%s', name='%s', family='%s', context='%s', chart='%s', priority=%d, update_every=%d"
- , type, id
- , name?name:""
- , family?family:""
- , context?context:""
- , rrdset_type_name(chart_type)
- , priority
- , update_every
- );
-
- st = rrdset_create(type, id, name, family, context, title, units, priority, update_every, chart_type);
- cd->update_every = update_every;
- }
- 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;
- pthread_exit(NULL);
- return NULL;
- }
-
- if(unlikely(!count && cd->enabled)) {
- error("PLUGINSD: '%s' (pid %d) does not generate useful 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;
- pthread_exit(NULL);
- return NULL;
+void *pluginsd_worker_thread(void *arg) {
+ struct plugind *cd = (struct plugind *)arg;
+ cd->obsolete = 0;
+
+ size_t count = 0;
+
+ for(;;) {
+ 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);
+
+ count = pluginsd_process(localhost, cd, fp, 0);
+ error("PLUGINSD: plugin '%s' disconnected.", cd->fullfilename);
+
+ killpid(cd->pid, SIGTERM);
+
+ info("PLUGINSD: '%s' on pid %d stopped after %zu successful data collections (ENDs).", cd->fullfilename, cd->pid, count);
+
+ // get the return code
+ int code = mypclose(fp, cd->pid);
+
+ if(unlikely(netdata_exit)) break;
+ else if(code != 0) {
+ // the plugin reports failure
+
+ if(likely(!cd->successful_collections)) {
+ // nothing collected - disable it
+ error("PLUGINSD: '%s' exited with error code %d. Disabling it.", cd->fullfilename, code);
+ cd->enabled = 0;
+ }
+ else {
+ // we have collected something
+
+ if(likely(cd->serial_failures <= 10)) {
+ error("PLUGINSD: '%s' exited with error code %d, but has given useful output in the past (%zu times). %s", cd->fullfilename, code, cd->successful_collections, cd->enabled?"Waiting a bit before starting it again.":"Will not start it again - it is disabled.");
+ sleep((unsigned int) (cd->update_every * 10));
+ }
+ else {
+ error("PLUGINSD: '%s' exited with error code %d, but has given useful output in the past (%zu times). We tried %zu times to restart it, but it failed to generate data. Disabling it.", cd->fullfilename, code, cd->successful_collections, cd->serial_failures);
+ cd->enabled = 0;
+ }
+ }
+ }
+ else {
+ // the plugin reports success
+
+ if(unlikely(!cd->successful_collections)) {
+ // we have collected nothing so far
+
+ if(likely(cd->serial_failures <= 10)) {
+ error("PLUGINSD: '%s' (pid %d) does not generate useful output but it reports success (exits with 0). %s.", cd->fullfilename, cd->pid, cd->enabled?"Waiting a bit before starting it again.":"Will not start it again - it is disabled.");
+ sleep((unsigned int) (cd->update_every * 10));
+ }
+ else {
+ error("PLUGINSD: '%s' (pid %d) does not generate useful output, although it reports success (exits with 0), but we have tried %zu times to collect something. Disabling it.", cd->fullfilename, cd->pid, cd->serial_failures);
+ cd->enabled = 0;
+ }
+ }
+ else
+ sleep((unsigned int) cd->update_every);
+ }
+ cd->pid = 0;
+
+ if(unlikely(!cd->enabled)) break;
+ }
+
+ info("PLUGINSD: '%s' thread exiting", cd->fullfilename);
+
+ cd->obsolete = 1;
+ pthread_exit(NULL);
+ return NULL;
}
-void *pluginsd_main(void *ptr)
-{
- if(ptr) { ; }
-
- info("PLUGINS.D thread created with task id %d", gettid());
+void *pluginsd_main(void *ptr) {
+ struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
+
+ info("PLUGINS.D thread created with task id %d", gettid());
+
+ if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
+ error("Cannot set pthread cancel type to DEFERRED.");
+
+ if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
+ error("Cannot set pthread cancel state to ENABLE.");
+
+ int automatic_run = config_get_boolean(CONFIG_SECTION_PLUGINS, "enable running new plugins", 1);
+ int scan_frequency = (int) config_get_number(CONFIG_SECTION_PLUGINS, "check for new plugins every", 60);
+ DIR *dir = NULL;
+ struct dirent *file = NULL;
+ struct plugind *cd;
+
+ // enable the apps plugin by default
+ // config_get_boolean(CONFIG_SECTION_PLUGINS, "apps", 1);
+
+ if(scan_frequency < 1) scan_frequency = 1;
+
+ for(;;) {
+ if(unlikely(netdata_exit)) break;
+
+ dir = opendir(netdata_configured_plugins_dir);
+ if(unlikely(!dir)) {
+ error("Cannot open directory '%s'.", netdata_configured_plugins_dir);
+ goto cleanup;
+ }
+
+ while(likely((file = readdir(dir)))) {
+ if(unlikely(netdata_exit)) break;
+
+ debug(D_PLUGINSD, "PLUGINSD: Examining file '%s'", file->d_name);
+
+ if(unlikely(strcmp(file->d_name, ".") == 0 || strcmp(file->d_name, "..") == 0)) continue;
+
+ int len = (int) strlen(file->d_name);
+ if(unlikely(len <= (int)PLUGINSD_FILE_SUFFIX_LEN)) continue;
+ if(unlikely(strcmp(PLUGINSD_FILE_SUFFIX, &file->d_name[len - (int)PLUGINSD_FILE_SUFFIX_LEN]) != 0)) {
+ debug(D_PLUGINSD, "PLUGINSD: File '%s' does not end in '%s'.", file->d_name, PLUGINSD_FILE_SUFFIX);
+ continue;
+ }
+
+ char pluginname[CONFIG_MAX_NAME + 1];
+ snprintfz(pluginname, CONFIG_MAX_NAME, "%.*s", (int)(len - PLUGINSD_FILE_SUFFIX_LEN), file->d_name);
+ int enabled = config_get_boolean(CONFIG_SECTION_PLUGINS, pluginname, automatic_run);
+
+ if(unlikely(!enabled)) {
+ debug(D_PLUGINSD, "PLUGINSD: plugin '%s' is not enabled", file->d_name);
+ continue;
+ }
+
+ // check if it runs already
+ for(cd = pluginsd_root ; cd ; cd = cd->next)
+ if(unlikely(strcmp(cd->filename, file->d_name) == 0)) break;
+
+ if(likely(cd && !cd->obsolete)) {
+ debug(D_PLUGINSD, "PLUGINSD: plugin '%s' is already running", cd->filename);
+ continue;
+ }
+
+ // it is not running
+ // allocate a new one, or use the obsolete one
+ if(unlikely(!cd)) {
+ cd = callocz(sizeof(struct plugind), 1);
+
+ snprintfz(cd->id, CONFIG_MAX_NAME, "plugin:%s", pluginname);
+
+ strncpyz(cd->filename, file->d_name, FILENAME_MAX);
+ snprintfz(cd->fullfilename, FILENAME_MAX, "%s/%s", netdata_configured_plugins_dir, cd->filename);
+
+ cd->enabled = enabled;
+ cd->update_every = (int) config_get_number(cd->id, "update every", localhost->rrd_update_every);
+ cd->started_t = now_realtime_sec();
+
+ char *def = "";
+ snprintfz(cd->cmd, PLUGINSD_CMD_MAX, "exec %s %d %s", cd->fullfilename, cd->update_every, config_get(cd->id, "command options", def));
+
+ // link it
+ if(likely(pluginsd_root)) cd->next = pluginsd_root;
+ pluginsd_root = cd;
+
+ // it is not currently running
+ cd->obsolete = 1;
+
+ if(cd->enabled) {
+ // spawn a new thread for it
+ if(unlikely(pthread_create(&cd->thread, NULL, pluginsd_worker_thread, cd) != 0))
+ error("PLUGINSD: failed to create new thread for plugin '%s'.", cd->filename);
+
+ else if(unlikely(pthread_detach(cd->thread) != 0))
+ error("PLUGINSD: Cannot request detach of newly created thread for plugin '%s'.", cd->filename);
+ }
+ }
+ }
+
+ closedir(dir);
+ sleep((unsigned int) scan_frequency);
+ }
+
+cleanup:
+ info("PLUGINS.D thread exiting");
- if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
- error("Cannot set pthread cancel type to DEFERRED.");
-
- if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
- error("Cannot set pthread cancel state to ENABLE.");
-
- char *dir_name = config_get("plugins", "plugins directory", PLUGINS_DIR);
- int automatic_run = config_get_boolean("plugins", "enable running new plugins", 1);
- int scan_frequency = (int) config_get_number("plugins", "check for new plugins every", 60);
- DIR *dir = NULL;
- struct dirent *file = NULL;
- struct plugind *cd;
-
- // enable the apps plugin by default
- // config_get_boolean("plugins", "apps", 1);
-
- if(scan_frequency < 1) scan_frequency = 1;
-
- while(likely(1)) {
- if(unlikely(netdata_exit)) break;
-
- dir = opendir(dir_name);
- if(unlikely(!dir)) {
- error("Cannot open directory '%s'.", dir_name);
- pthread_exit(NULL);
- return NULL;
- }
-
- while(likely((file = readdir(dir)))) {
- if(unlikely(netdata_exit)) break;
-
- debug(D_PLUGINSD, "PLUGINSD: Examining file '%s'", file->d_name);
-
- if(unlikely(strcmp(file->d_name, ".") == 0 || strcmp(file->d_name, "..") == 0)) continue;
-
- int len = (int) strlen(file->d_name);
- if(unlikely(len <= (int)PLUGINSD_FILE_SUFFIX_LEN)) continue;
- if(unlikely(strcmp(PLUGINSD_FILE_SUFFIX, &file->d_name[len - (int)PLUGINSD_FILE_SUFFIX_LEN]) != 0)) {
- debug(D_PLUGINSD, "PLUGINSD: File '%s' does not end in '%s'.", file->d_name, PLUGINSD_FILE_SUFFIX);
- continue;
- }
-
- char pluginname[CONFIG_MAX_NAME + 1];
- snprintf(pluginname, CONFIG_MAX_NAME, "%.*s", (int)(len - PLUGINSD_FILE_SUFFIX_LEN), file->d_name);
- int enabled = config_get_boolean("plugins", pluginname, automatic_run);
-
- if(unlikely(!enabled)) {
- debug(D_PLUGINSD, "PLUGINSD: plugin '%s' is not enabled", file->d_name);
- continue;
- }
-
- // check if it runs already
- for(cd = pluginsd_root ; likely(cd) ; cd = cd->next) {
- if(unlikely(strcmp(cd->filename, file->d_name) == 0)) break;
- }
- if(likely(cd && !cd->obsolete)) {
- debug(D_PLUGINSD, "PLUGINSD: plugin '%s' is already running", cd->filename);
- continue;
- }
-
- // it is not running
- // allocate a new one, or use the obsolete one
- if(unlikely(!cd)) {
- cd = calloc(sizeof(struct plugind), 1);
- if(unlikely(!cd)) fatal("Cannot allocate memory for plugin.");
-
- snprintf(cd->id, CONFIG_MAX_NAME, "plugin:%s", pluginname);
-
- strncpy(cd->filename, file->d_name, FILENAME_MAX);
- snprintf(cd->fullfilename, FILENAME_MAX, "%s/%s", dir_name, cd->filename);
-
- cd->enabled = enabled;
- cd->update_every = (int) config_get_number(cd->id, "update every", rrd_update_every);
- cd->started_t = time(NULL);
-
- char *def = "";
- snprintf(cd->cmd, PLUGINSD_CMD_MAX, "exec %s %d %s", cd->fullfilename, cd->update_every, config_get(cd->id, "command options", def));
-
- // link it
- if(likely(pluginsd_root)) cd->next = pluginsd_root;
- pluginsd_root = cd;
- }
- cd->obsolete = 0;
-
- if(unlikely(!cd->enabled)) continue;
-
- // spawn a new thread for it
- if(unlikely(pthread_create(&cd->thread, NULL, pluginsd_worker_thread, cd) != 0)) {
- error("PLUGINSD: failed to create new thread for plugin '%s'.", cd->filename);
- cd->obsolete = 1;
- }
- else if(unlikely(pthread_detach(cd->thread) != 0))
- error("PLUGINSD: Cannot request detach of newly created thread for plugin '%s'.", cd->filename);
- }
-
- closedir(dir);
- sleep((unsigned int) scan_frequency);
- }
-
- pthread_exit(NULL);
- return NULL;
+ static_thread->enabled = 0;
+ pthread_exit(NULL);
+ return NULL;
}
projects / netdata.git / blobdiff