Merging upstream version 1.11.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 694 deletions

diff --git a/src/plugins_d.c b/src/plugins_d.c
deleted file mode 100644
index 5693dda0..00000000
--- a/src/plugins_d.c
+++ /dev/null
@@ -1,694 +0,0 @@
-#include "common.h"
-
-char *plugin_directories[PLUGINSD_MAX_DIRECTORIES] = { NULL };
-char *netdata_configured_plugins_dir_base;
-
-struct plugind *pluginsd_root = NULL;
-
-static inline int pluginsd_space(char c) {
-    switch(c) {
-    case ' ':
-    case '\t':
-    case '\r':
-    case '\n':
-    case '=':
-        return 1;
-
-    default:
-        return 0;
-    }
-}
-
-inline int config_isspace(char c) {
-    switch(c) {
-        case ' ':
-        case '\t':
-        case '\r':
-        case '\n':
-        case ',':
-            return 1;
-
-        default:
-            return 0;
-    }
-}
-
-// split a text into words, respecting quotes
-inline int quoted_strings_splitter(char *str, char **words, int max_words, int (*custom_isspace)(char)) {
-    char *s = str, quote = 0;
-    int i = 0, j;
-
-    // skip all white space
-    while(unlikely(custom_isspace(*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 && custom_isspace(*s))) {
-
-            // terminate the word
-            *s++ = '\0';
-
-            // skip all white space
-            while(likely(custom_isspace(*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 int pluginsd_split_words(char *str, char **words, int max_words) {
-    return quoted_strings_splitter(str, words, max_words, pluginsd_space);
-}
-
-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[PLUGINSD_MAX_WORDS] = { NULL };
-    uint32_t BEGIN_HASH = simple_hash(PLUGINSD_KEYWORD_BEGIN);
-    uint32_t END_HASH = simple_hash(PLUGINSD_KEYWORD_END);
-    uint32_t FLUSH_HASH = simple_hash(PLUGINSD_KEYWORD_FLUSH);
-    uint32_t CHART_HASH = simple_hash(PLUGINSD_KEYWORD_CHART);
-    uint32_t DIMENSION_HASH = simple_hash(PLUGINSD_KEYWORD_DIMENSION);
-    uint32_t DISABLE_HASH = simple_hash(PLUGINSD_KEYWORD_DISABLE);
-    uint32_t VARIABLE_HASH = simple_hash(PLUGINSD_KEYWORD_VARIABLE);
-
-    RRDSET *st = NULL;
-    uint32_t hash;
-
-    errno = 0;
-    clearerr(fp);
-
-    if(unlikely(fileno(fp) == -1)) {
-        error("file descriptor given is not a valid stream");
-        goto cleanup;
-    }
-
-    while(!ferror(fp)) {
-        if(unlikely(netdata_exit)) break;
-
-        char *r = fgets(line, PLUGINSD_LINE_MAX, fp);
-        if(unlikely(!r)) {
-            error("read failed");
-            break;
-        }
-
-        if(unlikely(netdata_exit)) break;
-
-        line[PLUGINSD_LINE_MAX] = '\0';
-
-        int w = pluginsd_split_words(line, words, PLUGINSD_MAX_WORDS);
-        char *s = words[0];
-        if(unlikely(!s || !*s || !w)) {
-            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("requested a SET on chart '%s' of host '%s', without a dimension. Disabling it.", st->id, host->hostname);
-                enabled = 0;
-                break;
-            }
-
-            if(unlikely(!value || !*value)) value = NULL;
-
-            if(unlikely(!st)) {
-                error("requested a SET on dimension %s with value %s on host '%s', without a BEGIN. Disabling it.", dimension, value?value:"<nothing>", host->hostname);
-                enabled = 0;
-                break;
-            }
-
-            if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_DEBUG)))
-                debug(D_PLUGINSD, "is setting dimension %s/%s to %s", st->id, dimension, value?value:"<nothing>");
-
-            if(value) {
-                RRDDIM *rd = rrddim_find(st, dimension);
-                if(unlikely(!rd)) {
-                    error("requested a SET to dimension with id '%s' on stats '%s' (%s) on host '%s', which does not exist. Disabling it.", dimension, st->name, st->id, st->rrdhost->hostname);
-                    enabled = 0;
-                    break;
-                }
-                else
-                    rrddim_set_by_pointer(st, rd, strtoll(value, NULL, 0));
-            }
-        }
-        else if(likely(hash == BEGIN_HASH && !strcmp(s, PLUGINSD_KEYWORD_BEGIN))) {
-            char *id = words[1];
-            char *microseconds_txt = words[2];
-
-            if(unlikely(!id)) {
-                error("requested a BEGIN without a chart id for host '%s'. Disabling it.", host->hostname);
-                enabled = 0;
-                break;
-            }
-
-            st = rrdset_find(host, id);
-            if(unlikely(!st)) {
-                error("requested a BEGIN on chart '%s', which does not exist on host '%s'. Disabling it.", 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, PLUGINSD_KEYWORD_END))) {
-            if(unlikely(!st)) {
-                error("requested an END, without a BEGIN on host '%s'. Disabling it.", host->hostname);
-                enabled = 0;
-                break;
-            }
-
-            if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_DEBUG)))
-                debug(D_PLUGINSD, "requested an END on chart %s", st->id);
-
-            rrdset_done(st);
-            st = NULL;
-
-            count++;
-        }
-        else if(likely(hash == CHART_HASH && !strcmp(s, PLUGINSD_KEYWORD_CHART))) {
-            st = NULL;
-
-            char *type           = words[1];
-            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];
-            char *options        = words[10];
-            char *plugin         = words[11];
-            char *module         = words[12];
-
-            // parse the id from type
-            char *id = NULL;
-            if(likely(type && (id = strchr(type, '.')))) {
-                *id = '\0';
-                id++;
-            }
-
-            // make sure we have the required variables
-            if(unlikely(!type || !*type || !id || !*id)) {
-                error("requested a CHART, without a type.id, on host '%s'. Disabling it.", host->hostname);
-                enabled = 0;
-                break;
-            }
-
-            // parse the name, and make sure it does not include 'type.'
-            if(unlikely(name && *name)) {
-                // when data are coming from slaves
-                // name will be type.name
-                // so we have to remove 'type.' from name too
-                size_t len = strlen(type);
-                if(strncmp(type, name, len) == 0 && name[len] == '.')
-                    name = &name[len + 1];
-
-                // if the name is the same with the id,
-                // or is just 'NULL', clear it.
-                if(unlikely(strcmp(name, id) == 0 || strcasecmp(name, "NULL") == 0 || strcasecmp(name, "(NULL)") == 0))
-                    name = NULL;
-            }
-
-            int priority = 1000;
-            if(likely(priority_s && *priority_s)) priority = str2i(priority_s);
-
-            int update_every = cd->update_every;
-            if(likely(update_every_s && *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(name && !*name)) name = NULL;
-            if(unlikely(family && !*family)) family = NULL;
-            if(unlikely(context && !*context)) context = NULL;
-            if(unlikely(!title)) title = "";
-            if(unlikely(!units)) units = "unknown";
-
-            debug(D_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
-                    , (plugin && *plugin)?plugin:cd->filename
-                    , module
-                    , priority
-                    , update_every
-                    , chart_type
-            );
-
-            if(options && *options) {
-                if(strstr(options, "obsolete"))
-                    rrdset_is_obsolete(st);
-                else
-                    rrdset_isnot_obsolete(st);
-
-                if(strstr(options, "detail"))
-                    rrdset_flag_set(st, RRDSET_FLAG_DETAIL);
-                else
-                    rrdset_flag_clear(st, RRDSET_FLAG_DETAIL);
-
-                if(strstr(options, "hidden"))
-                    rrdset_flag_set(st, RRDSET_FLAG_HIDDEN);
-                else
-                    rrdset_flag_clear(st, RRDSET_FLAG_HIDDEN);
-
-                if(strstr(options, "store_first"))
-                    rrdset_flag_set(st, RRDSET_FLAG_STORE_FIRST);
-                else
-                    rrdset_flag_clear(st, RRDSET_FLAG_STORE_FIRST);
-            }
-            else {
-                rrdset_isnot_obsolete(st);
-                rrdset_flag_clear(st, RRDSET_FLAG_DETAIL);
-                rrdset_flag_clear(st, RRDSET_FLAG_STORE_FIRST);
-            }
-        }
-        else if(likely(hash == DIMENSION_HASH && !strcmp(s, PLUGINSD_KEYWORD_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("requested a DIMENSION, without an id, host '%s' and chart '%s'. Disabling it.", host->hostname, st?st->id:"UNSET");
-                enabled = 0;
-                break;
-            }
-
-            if(unlikely(!st)) {
-                error("requested a DIMENSION, without a CHART, on host '%s'. Disabling it.", 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, "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_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(likely(hash == VARIABLE_HASH && !strcmp(s, PLUGINSD_KEYWORD_VARIABLE))) {
-            char *name = words[1];
-            char *value = words[2];
-            int global = (st)?0:1;
-
-            if(name && *name) {
-                if((strcmp(name, "GLOBAL") == 0 || strcmp(name, "HOST") == 0)) {
-                    global = 1;
-                    name = words[2];
-                    value  = words[3];
-                }
-                else if((strcmp(name, "LOCAL") == 0 || strcmp(name, "CHART") == 0)) {
-                    global = 0;
-                    name = words[2];
-                    value  = words[3];
-                }
-            }
-
-            if(unlikely(!name || !*name)) {
-                error("requested a VARIABLE on host '%s', without a variable name. Disabling it.", host->hostname);
-                enabled = 0;
-                break;
-            }
-
-            if(unlikely(!value || !*value))
-                value = NULL;
-
-            if(value) {
-                char *endptr = NULL;
-                calculated_number v = (calculated_number)str2ld(value, &endptr);
-
-                if(unlikely(endptr && *endptr)) {
-                    if(endptr == value)
-                        error("the value '%s' of VARIABLE '%s' on host '%s' cannot be parsed as a number", value, name, host->hostname);
-                    else
-                        error("the value '%s' of VARIABLE '%s' on host '%s' has leftovers: '%s'", value, name, host->hostname, endptr);
-                }
-
-                if(global) {
-                    RRDVAR *rv = rrdvar_custom_host_variable_create(host, name);
-                    if (rv) rrdvar_custom_host_variable_set(host, rv, v);
-                    else error("cannot find/create HOST VARIABLE '%s' on host '%s'", name, host->hostname);
-                }
-                else if(st) {
-                    RRDSETVAR *rs = rrdsetvar_custom_chart_variable_create(st, name);
-                    if (rs) rrdsetvar_custom_chart_variable_set(rs, v);
-                    else error("cannot find/create CHART VARIABLE '%s' on host '%s', chart '%s'", name, host->hostname, st->id);
-                }
-                else
-                    error("cannot find/create CHART VARIABLE '%s' on host '%s' without a chart", name, host->hostname);
-            }
-            else
-                error("cannot set %s VARIABLE '%s' on host '%s' to an empty value", (global)?"HOST":"CHART", name, host->hostname);
-        }
-        else if(likely(hash == FLUSH_HASH && !strcmp(s, PLUGINSD_KEYWORD_FLUSH))) {
-            debug(D_PLUGINSD, "requested a FLUSH");
-            st = NULL;
-        }
-        else if(unlikely(hash == DISABLE_HASH && !strcmp(s, PLUGINSD_KEYWORD_DISABLE))) {
-            info("called DISABLE. Disabling it.");
-            enabled = 0;
-            break;
-        }
-        else {
-            error("sent command '%s' which is not known by netdata, for host '%s'. Disabling it.", 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;
-}
-
-static void pluginsd_worker_thread_cleanup(void *arg) {
-    struct plugind *cd = (struct plugind *)arg;
-
-    if(cd->enabled && !cd->obsolete) {
-        cd->obsolete = 1;
-
-        info("data collection thread exiting");
-
-        if (cd->pid) {
-            siginfo_t info;
-            info("killing child process pid %d", cd->pid);
-            if (killpid(cd->pid, SIGTERM) != -1) {
-                info("waiting for child process pid %d to exit...", cd->pid);
-                waitid(P_PID, (id_t) cd->pid, &info, WEXITED);
-            }
-            cd->pid = 0;
-        }
-    }
-}
-
-void *pluginsd_worker_thread(void *arg) {
-    netdata_thread_cleanup_push(pluginsd_worker_thread_cleanup, arg);
-
-    struct plugind *cd = (struct plugind *)arg;
-
-    cd->obsolete = 0;
-    size_t count = 0;
-
-    while(!netdata_exit) {
-        FILE *fp = mypopen(cd->cmd, &cd->pid);
-        if(unlikely(!fp)) {
-            error("Cannot popen(\"%s\", \"r\").", cd->cmd);
-            break;
-        }
-
-        info("connected to '%s' running on pid %d", cd->fullfilename, cd->pid);
-        count = pluginsd_process(localhost, cd, fp, 0);
-        error("'%s' (pid %d) disconnected after %zu successful data collections (ENDs).", cd->fullfilename, cd->pid, count);
-        killpid(cd->pid, SIGTERM);
-
-        // get the return code
-        int code = mypclose(fp, cd->pid);
-
-        if(code != 0) {
-            // the plugin reports failure
-
-            if(likely(!cd->successful_collections)) {
-                // nothing collected - disable it
-                error("'%s' (pid %d) exited with error code %d. Disabling it.", cd->fullfilename, cd->pid, code);
-                cd->enabled = 0;
-            }
-            else {
-                // we have collected something
-
-                if(likely(cd->serial_failures <= 10)) {
-                    error("'%s' (pid %d) exited with error code %d, but has given useful output in the past (%zu times). %s", cd->fullfilename, cd->pid, 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("'%s' (pid %d) 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, cd->pid, 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("'%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 now disabled.");
-                    sleep((unsigned int) (cd->update_every * 10));
-                }
-                else {
-                    error("'%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;
-    }
-
-    netdata_thread_cleanup_pop(1);
-    return NULL;
-}
-
-static void pluginsd_main_cleanup(void *data) {
-    struct netdata_static_thread *static_thread = (struct netdata_static_thread *)data;
-    static_thread->enabled = NETDATA_MAIN_THREAD_EXITING;
-    info("cleaning up...");
-
-    struct plugind *cd;
-    for (cd = pluginsd_root; cd; cd = cd->next) {
-        if (cd->enabled && !cd->obsolete) {
-            info("stopping plugin thread: %s", cd->id);
-            netdata_thread_cancel(cd->thread);
-        }
-    }
-
-    info("cleanup completed.");
-    static_thread->enabled = NETDATA_MAIN_THREAD_EXITED;
-}
-
-void *pluginsd_main(void *ptr) {
-    netdata_thread_cleanup_push(pluginsd_main_cleanup, ptr);
-
-    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);
-    if(scan_frequency < 1) scan_frequency = 1;
-
-    // store the errno for each plugins directory
-    // so that we don't log broken directories on each loop
-    int directory_errors[PLUGINSD_MAX_DIRECTORIES] =  { 0 };
-
-    while(!netdata_exit) {
-        int idx;
-        const char *directory_name;
-
-        for( idx = 0; idx < PLUGINSD_MAX_DIRECTORIES && (directory_name = plugin_directories[idx]) ; idx++ ) {
-            if(unlikely(netdata_exit)) break;
-
-            errno = 0;
-            DIR *dir = opendir(directory_name);
-            if(unlikely(!dir)) {
-                if(directory_errors[idx] != errno) {
-                    directory_errors[idx] = errno;
-                    error("cannot open plugins directory '%s'", directory_name);
-                }
-                continue;
-            }
-
-            struct dirent *file = NULL;
-            while(likely((file = readdir(dir)))) {
-                if(unlikely(netdata_exit)) break;
-
-                debug(D_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, "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, "plugin '%s' is not enabled", file->d_name);
-                    continue;
-                }
-
-                // check if it runs already
-                struct plugind *cd;
-                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, "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", directory_name, 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) {
-                        char tag[NETDATA_THREAD_TAG_MAX + 1];
-                        snprintfz(tag, NETDATA_THREAD_TAG_MAX, "PLUGINSD[%s]", pluginname);
-                        // spawn a new thread for it
-                        netdata_thread_create(&cd->thread, tag, NETDATA_THREAD_OPTION_DEFAULT, pluginsd_worker_thread, cd);
-                    }
-                }
-            }
-
-            closedir(dir);
-        }
-
-        sleep((unsigned int) scan_frequency);
-    }
-
-    netdata_thread_cleanup_pop(1);
-    return NULL;
-}