diff options
Diffstat (limited to 'collectors/plugins.d/pluginsd_parser.c')
| -rw-r--r-- | collectors/plugins.d/pluginsd_parser.c | 3208 |
1 files changed, 3208 insertions, 0 deletions
diff --git a/collectors/plugins.d/pluginsd_parser.c b/collectors/plugins.d/pluginsd_parser.c new file mode 100644 index 00000000..3b47c6c0 --- /dev/null +++ b/collectors/plugins.d/pluginsd_parser.c @@ -0,0 +1,3208 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "pluginsd_parser.h" + +#define LOG_FUNCTIONS false + +#define SERVING_STREAMING(parser) ((parser)->repertoire == PARSER_INIT_STREAMING) +#define SERVING_PLUGINSD(parser) ((parser)->repertoire == PARSER_INIT_PLUGINSD) + +static ssize_t send_to_plugin(const char *txt, void *data) { + PARSER *parser = data; + + if(!txt || !*txt) + return 0; + +#ifdef ENABLE_H2O + if(parser->h2o_ctx) + return h2o_stream_write(parser->h2o_ctx, txt, strlen(txt)); +#endif + + errno = 0; + spinlock_lock(&parser->writer.spinlock); + ssize_t bytes = -1; + +#ifdef ENABLE_HTTPS + NETDATA_SSL *ssl = parser->ssl_output; + if(ssl) { + + if(SSL_connection(ssl)) + bytes = netdata_ssl_write(ssl, (void *) txt, strlen(txt)); + + else + netdata_log_error("PLUGINSD: cannot send command (SSL)"); + + spinlock_unlock(&parser->writer.spinlock); + return bytes; + } +#endif + + if(parser->fp_output) { + + bytes = fprintf(parser->fp_output, "%s", txt); + if(bytes <= 0) { + netdata_log_error("PLUGINSD: cannot send command (FILE)"); + bytes = -2; + } + else + fflush(parser->fp_output); + + spinlock_unlock(&parser->writer.spinlock); + return bytes; + } + + if(parser->fd != -1) { + bytes = 0; + ssize_t total = (ssize_t)strlen(txt); + ssize_t sent; + + do { + sent = write(parser->fd, &txt[bytes], total - bytes); + if(sent <= 0) { + netdata_log_error("PLUGINSD: cannot send command (fd)"); + spinlock_unlock(&parser->writer.spinlock); + return -3; + } + bytes += sent; + } + while(bytes < total); + + spinlock_unlock(&parser->writer.spinlock); + return (int)bytes; + } + + spinlock_unlock(&parser->writer.spinlock); + netdata_log_error("PLUGINSD: cannot send command (no output socket/pipe/file given to plugins.d parser)"); + return -4; +} + +static inline RRDHOST *pluginsd_require_scope_host(PARSER *parser, const char *cmd) { + RRDHOST *host = parser->user.host; + + if(unlikely(!host)) + netdata_log_error("PLUGINSD: command %s requires a host, but is not set.", cmd); + + return host; +} + +static inline RRDSET *pluginsd_require_scope_chart(PARSER *parser, const char *cmd, const char *parent_cmd) { + RRDSET *st = parser->user.st; + + if(unlikely(!st)) + netdata_log_error("PLUGINSD: command %s requires a chart defined via command %s, but is not set.", cmd, parent_cmd); + + return st; +} + +static inline RRDSET *pluginsd_get_scope_chart(PARSER *parser) { + return parser->user.st; +} + +static inline void pluginsd_lock_rrdset_data_collection(PARSER *parser) { + if(parser->user.st && !parser->user.v2.locked_data_collection) { + spinlock_lock(&parser->user.st->data_collection_lock); + parser->user.v2.locked_data_collection = true; + } +} + +static inline bool pluginsd_unlock_rrdset_data_collection(PARSER *parser) { + if(parser->user.st && parser->user.v2.locked_data_collection) { + spinlock_unlock(&parser->user.st->data_collection_lock); + parser->user.v2.locked_data_collection = false; + return true; + } + + return false; +} + +static inline void pluginsd_unlock_previous_scope_chart(PARSER *parser, const char *keyword, bool stale) { + if(unlikely(pluginsd_unlock_rrdset_data_collection(parser))) { + if(stale) + netdata_log_error("PLUGINSD: 'host:%s/chart:%s/' stale data collection lock found during %s; it has been unlocked", + rrdhost_hostname(parser->user.st->rrdhost), + rrdset_id(parser->user.st), + keyword); + } + + if(unlikely(parser->user.v2.ml_locked)) { + ml_chart_update_end(parser->user.st); + parser->user.v2.ml_locked = false; + + if(stale) + netdata_log_error("PLUGINSD: 'host:%s/chart:%s/' stale ML lock found during %s, it has been unlocked", + rrdhost_hostname(parser->user.st->rrdhost), + rrdset_id(parser->user.st), + keyword); + } +} + +static inline void pluginsd_clear_scope_chart(PARSER *parser, const char *keyword) { + pluginsd_unlock_previous_scope_chart(parser, keyword, true); + + if(parser->user.cleanup_slots && parser->user.st) + rrdset_pluginsd_receive_unslot(parser->user.st); + + parser->user.st = NULL; + parser->user.cleanup_slots = false; +} + +static inline bool pluginsd_set_scope_chart(PARSER *parser, RRDSET *st, const char *keyword) { + RRDSET *old_st = parser->user.st; + pid_t old_collector_tid = (old_st) ? old_st->pluginsd.collector_tid : 0; + pid_t my_collector_tid = gettid(); + + if(unlikely(old_collector_tid)) { + if(old_collector_tid != my_collector_tid) { + nd_log_limit_static_global_var(erl, 1, 0); + nd_log_limit(&erl, NDLS_COLLECTORS, NDLP_WARNING, + "PLUGINSD: keyword %s: 'host:%s/chart:%s' is collected twice (my tid %d, other collector tid %d)", + keyword ? keyword : "UNKNOWN", + rrdhost_hostname(st->rrdhost), rrdset_id(st), + my_collector_tid, old_collector_tid); + + return false; + } + + old_st->pluginsd.collector_tid = 0; + } + + st->pluginsd.collector_tid = my_collector_tid; + + pluginsd_clear_scope_chart(parser, keyword); + + st->pluginsd.pos = 0; + parser->user.st = st; + parser->user.cleanup_slots = false; + + return true; +} + +static inline void pluginsd_rrddim_put_to_slot(PARSER *parser, RRDSET *st, RRDDIM *rd, ssize_t slot, bool obsolete) { + size_t wanted_size = st->pluginsd.size; + + if(slot >= 1) { + st->pluginsd.dims_with_slots = true; + wanted_size = slot; + } + else { + st->pluginsd.dims_with_slots = false; + wanted_size = dictionary_entries(st->rrddim_root_index); + } + + if(wanted_size > st->pluginsd.size) { + st->pluginsd.prd_array = reallocz(st->pluginsd.prd_array, wanted_size * sizeof(struct pluginsd_rrddim)); + + // initialize the empty slots + for(ssize_t i = (ssize_t) wanted_size - 1; i >= (ssize_t) st->pluginsd.size; i--) { + st->pluginsd.prd_array[i].rda = NULL; + st->pluginsd.prd_array[i].rd = NULL; + st->pluginsd.prd_array[i].id = NULL; + } + + st->pluginsd.size = wanted_size; + } + + if(st->pluginsd.dims_with_slots) { + struct pluginsd_rrddim *prd = &st->pluginsd.prd_array[slot - 1]; + + if(prd->rd != rd) { + prd->rda = rrddim_find_and_acquire(st, string2str(rd->id)); + prd->rd = rrddim_acquired_to_rrddim(prd->rda); + prd->id = string2str(prd->rd->id); + } + + if(obsolete) + parser->user.cleanup_slots = true; + } +} + +static inline RRDDIM *pluginsd_acquire_dimension(RRDHOST *host, RRDSET *st, const char *dimension, ssize_t slot, const char *cmd) { + if (unlikely(!dimension || !*dimension)) { + netdata_log_error("PLUGINSD: 'host:%s/chart:%s' got a %s, without a dimension.", + rrdhost_hostname(host), rrdset_id(st), cmd); + return NULL; + } + + if (unlikely(!st->pluginsd.size)) { + netdata_log_error("PLUGINSD: 'host:%s/chart:%s' got a %s, but the chart has no dimensions.", + rrdhost_hostname(host), rrdset_id(st), cmd); + return NULL; + } + + struct pluginsd_rrddim *prd; + RRDDIM *rd; + + if(likely(st->pluginsd.dims_with_slots)) { + // caching with slots + + if(unlikely(slot < 1 || slot > st->pluginsd.size)) { + netdata_log_error("PLUGINSD: 'host:%s/chart:%s' got a %s with slot %zd, but slots in the range [1 - %u] are expected.", + rrdhost_hostname(host), rrdset_id(st), cmd, slot, st->pluginsd.size); + return NULL; + } + + prd = &st->pluginsd.prd_array[slot - 1]; + + rd = prd->rd; + if(likely(rd)) { +#ifdef NETDATA_INTERNAL_CHECKS + if(strcmp(prd->id, dimension) != 0) { + ssize_t t; + for(t = 0; t < st->pluginsd.size ;t++) { + if (strcmp(st->pluginsd.prd_array[t].id, dimension) == 0) + break; + } + if(t >= st->pluginsd.size) + t = -1; + + internal_fatal(true, + "PLUGINSD: expected to find dimension '%s' on slot %zd, but found '%s', " + "the right slot is %zd", + dimension, slot, prd->id, t); + } +#endif + return rd; + } + } + else { + // caching without slots + + if(unlikely(st->pluginsd.pos >= st->pluginsd.size)) + st->pluginsd.pos = 0; + + prd = &st->pluginsd.prd_array[st->pluginsd.pos++]; + + rd = prd->rd; + if(likely(rd)) { + const char *id = prd->id; + + if(strcmp(id, dimension) == 0) { + // we found it cached + return rd; + } + else { + // the cached one is not good for us + rrddim_acquired_release(prd->rda); + prd->rda = NULL; + prd->rd = NULL; + prd->id = NULL; + } + } + } + + // we need to find the dimension and set it to prd + + RRDDIM_ACQUIRED *rda = rrddim_find_and_acquire(st, dimension); + if (unlikely(!rda)) { + netdata_log_error("PLUGINSD: 'host:%s/chart:%s/dim:%s' got a %s but dimension does not exist.", + rrdhost_hostname(host), rrdset_id(st), dimension, cmd); + + return NULL; + } + + prd->rda = rda; + prd->rd = rd = rrddim_acquired_to_rrddim(rda); + prd->id = string2str(rd->id); + + return rd; +} + +static inline RRDSET *pluginsd_find_chart(RRDHOST *host, const char *chart, const char *cmd) { + if (unlikely(!chart || !*chart)) { + netdata_log_error("PLUGINSD: 'host:%s' got a %s without a chart id.", + rrdhost_hostname(host), cmd); + return NULL; + } + + RRDSET *st = rrdset_find(host, chart); + if (unlikely(!st)) + netdata_log_error("PLUGINSD: 'host:%s/chart:%s' got a %s but chart does not exist.", + rrdhost_hostname(host), chart, cmd); + + return st; +} + +static inline ssize_t pluginsd_parse_rrd_slot(char **words, size_t num_words) { + ssize_t slot = -1; + char *id = get_word(words, num_words, 1); + if(id && id[0] == PLUGINSD_KEYWORD_SLOT[0] && id[1] == PLUGINSD_KEYWORD_SLOT[1] && + id[2] == PLUGINSD_KEYWORD_SLOT[2] && id[3] == PLUGINSD_KEYWORD_SLOT[3] && id[4] == ':') { + slot = (ssize_t) str2ull_encoded(&id[5]); + if(slot < 0) slot = 0; // to make the caller increment its idx of the words + } + + return slot; +} + +static inline void pluginsd_rrdset_cache_put_to_slot(PARSER *parser, RRDSET *st, ssize_t slot, bool obsolete) { + // clean possible old cached data + rrdset_pluginsd_receive_unslot(st); + + if(unlikely(slot < 1 || slot >= INT32_MAX)) + return; + + RRDHOST *host = st->rrdhost; + + if(unlikely((size_t)slot > host->rrdpush.receive.pluginsd_chart_slots.size)) { + spinlock_lock(&host->rrdpush.receive.pluginsd_chart_slots.spinlock); + size_t old_slots = host->rrdpush.receive.pluginsd_chart_slots.size; + size_t new_slots = (old_slots < PLUGINSD_MIN_RRDSET_POINTERS_CACHE) ? PLUGINSD_MIN_RRDSET_POINTERS_CACHE : old_slots * 2; + + if(new_slots < (size_t)slot) + new_slots = slot; + + host->rrdpush.receive.pluginsd_chart_slots.array = + reallocz(host->rrdpush.receive.pluginsd_chart_slots.array, new_slots * sizeof(RRDSET *)); + + for(size_t i = old_slots; i < new_slots ;i++) + host->rrdpush.receive.pluginsd_chart_slots.array[i] = NULL; + + host->rrdpush.receive.pluginsd_chart_slots.size = new_slots; + spinlock_unlock(&host->rrdpush.receive.pluginsd_chart_slots.spinlock); + } + + host->rrdpush.receive.pluginsd_chart_slots.array[slot - 1] = st; + st->pluginsd.last_slot = (int32_t)slot - 1; + parser->user.cleanup_slots = obsolete; +} + +static inline RRDSET *pluginsd_rrdset_cache_get_from_slot(PARSER *parser, RRDHOST *host, const char *id, ssize_t slot, const char *keyword) { + if(unlikely(slot < 1 || (size_t)slot > host->rrdpush.receive.pluginsd_chart_slots.size)) + return pluginsd_find_chart(host, id, keyword); + + RRDSET *st = host->rrdpush.receive.pluginsd_chart_slots.array[slot - 1]; + + if(!st) { + st = pluginsd_find_chart(host, id, keyword); + if(st) + pluginsd_rrdset_cache_put_to_slot(parser, st, slot, rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE)); + } + else { + internal_fatal(string_strcmp(st->id, id) != 0, + "PLUGINSD: wrong chart in slot %zd, expected '%s', found '%s'", + slot - 1, id, string2str(st->id)); + } + + return st; +} + +static inline PARSER_RC PLUGINSD_DISABLE_PLUGIN(PARSER *parser, const char *keyword, const char *msg) { + parser->user.enabled = 0; + + if(keyword && msg) { + nd_log_limit_static_global_var(erl, 1, 0); + nd_log_limit(&erl, NDLS_COLLECTORS, NDLP_INFO, + "PLUGINSD: keyword %s: %s", keyword, msg); + } + + return PARSER_RC_ERROR; +} + +static inline PARSER_RC pluginsd_set(char **words, size_t num_words, PARSER *parser) { + int idx = 1; + ssize_t slot = pluginsd_parse_rrd_slot(words, num_words); + if(slot >= 0) idx++; + + char *dimension = get_word(words, num_words, idx++); + char *value = get_word(words, num_words, idx++); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_SET); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_SET, PLUGINSD_KEYWORD_CHART); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDDIM *rd = pluginsd_acquire_dimension(host, st, dimension, slot, PLUGINSD_KEYWORD_SET); + if(!rd) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + st->pluginsd.set = true; + + if (unlikely(rrdset_flag_check(st, RRDSET_FLAG_DEBUG))) + netdata_log_debug(D_PLUGINSD, "PLUGINSD: 'host:%s/chart:%s/dim:%s' SET is setting value to '%s'", + rrdhost_hostname(host), rrdset_id(st), dimension, value && *value ? value : "UNSET"); + + if (value && *value) + rrddim_set_by_pointer(st, rd, str2ll_encoded(value)); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_begin(char **words, size_t num_words, PARSER *parser) { + int idx = 1; + ssize_t slot = pluginsd_parse_rrd_slot(words, num_words); + if(slot >= 0) idx++; + + char *id = get_word(words, num_words, idx++); + char *microseconds_txt = get_word(words, num_words, idx++); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_BEGIN); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_rrdset_cache_get_from_slot(parser, host, id, slot, PLUGINSD_KEYWORD_BEGIN); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + if(!pluginsd_set_scope_chart(parser, st, PLUGINSD_KEYWORD_BEGIN)) + return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + usec_t microseconds = 0; + if (microseconds_txt && *microseconds_txt) { + long long t = str2ll(microseconds_txt, NULL); + if(t >= 0) + microseconds = t; + } + +#ifdef NETDATA_LOG_REPLICATION_REQUESTS + if(st->replay.log_next_data_collection) { + st->replay.log_next_data_collection = false; + + internal_error(true, + "REPLAY: 'host:%s/chart:%s' first BEGIN after replication, last collected %llu, last updated %llu, microseconds %llu", + rrdhost_hostname(host), rrdset_id(st), + st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec, + st->last_updated.tv_sec * USEC_PER_SEC + st->last_updated.tv_usec, + microseconds + ); + } +#endif + + if (likely(st->counter_done)) { + if (likely(microseconds)) { + if (parser->user.trust_durations) + rrdset_next_usec_unfiltered(st, microseconds); + else + rrdset_next_usec(st, microseconds); + } + else + rrdset_next(st); + } + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_end(char **words, size_t num_words, PARSER *parser) { + char *tv_sec = get_word(words, num_words, 1); + char *tv_usec = get_word(words, num_words, 2); + char *pending_rrdset_next = get_word(words, num_words, 3); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_END); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_END, PLUGINSD_KEYWORD_BEGIN); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + if (unlikely(rrdset_flag_check(st, RRDSET_FLAG_DEBUG))) + netdata_log_debug(D_PLUGINSD, "requested an END on chart '%s'", rrdset_id(st)); + + pluginsd_clear_scope_chart(parser, PLUGINSD_KEYWORD_END); + parser->user.data_collections_count++; + + struct timeval tv = { + .tv_sec = (tv_sec && *tv_sec) ? str2ll(tv_sec, NULL) : 0, + .tv_usec = (tv_usec && *tv_usec) ? str2ll(tv_usec, NULL) : 0 + }; + + if(!tv.tv_sec) + now_realtime_timeval(&tv); + + rrdset_timed_done(st, tv, pending_rrdset_next && *pending_rrdset_next ? true : false); + + return PARSER_RC_OK; +} + +static void pluginsd_host_define_cleanup(PARSER *parser) { + string_freez(parser->user.host_define.hostname); + rrdlabels_destroy(parser->user.host_define.rrdlabels); + + parser->user.host_define.hostname = NULL; + parser->user.host_define.rrdlabels = NULL; + parser->user.host_define.parsing_host = false; +} + +static inline bool pluginsd_validate_machine_guid(const char *guid, uuid_t *uuid, char *output) { + if(uuid_parse(guid, *uuid)) + return false; + + uuid_unparse_lower(*uuid, output); + + return true; +} + +static inline PARSER_RC pluginsd_host_define(char **words, size_t num_words, PARSER *parser) { + char *guid = get_word(words, num_words, 1); + char *hostname = get_word(words, num_words, 2); + + if(unlikely(!guid || !*guid || !hostname || !*hostname)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_HOST_DEFINE, "missing parameters"); + + if(unlikely(parser->user.host_define.parsing_host)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_HOST_DEFINE, + "another host definition is already open - did you send " PLUGINSD_KEYWORD_HOST_DEFINE_END "?"); + + if(!pluginsd_validate_machine_guid(guid, &parser->user.host_define.machine_guid, parser->user.host_define.machine_guid_str)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_HOST_DEFINE, "cannot parse MACHINE_GUID - is it a valid UUID?"); + + parser->user.host_define.hostname = string_strdupz(hostname); + parser->user.host_define.rrdlabels = rrdlabels_create(); + parser->user.host_define.parsing_host = true; + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_host_dictionary(char **words, size_t num_words, PARSER *parser, RRDLABELS *labels, const char *keyword) { + char *name = get_word(words, num_words, 1); + char *value = get_word(words, num_words, 2); + + if(!name || !*name || !value) + return PLUGINSD_DISABLE_PLUGIN(parser, keyword, "missing parameters"); + + if(!parser->user.host_define.parsing_host || !labels) + return PLUGINSD_DISABLE_PLUGIN(parser, keyword, "host is not defined, send " PLUGINSD_KEYWORD_HOST_DEFINE " before this"); + + rrdlabels_add(labels, name, value, RRDLABEL_SRC_CONFIG); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_host_labels(char **words, size_t num_words, PARSER *parser) { + return pluginsd_host_dictionary(words, num_words, parser, + parser->user.host_define.rrdlabels, + PLUGINSD_KEYWORD_HOST_LABEL); +} + +static inline PARSER_RC pluginsd_host_define_end(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser) { + if(!parser->user.host_define.parsing_host) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_HOST_DEFINE_END, "missing initialization, send " PLUGINSD_KEYWORD_HOST_DEFINE " before this"); + + RRDHOST *host = rrdhost_find_or_create( + string2str(parser->user.host_define.hostname), + string2str(parser->user.host_define.hostname), + parser->user.host_define.machine_guid_str, + "Netdata Virtual Host 1.0", + netdata_configured_timezone, + netdata_configured_abbrev_timezone, + netdata_configured_utc_offset, + NULL, + program_name, + program_version, + default_rrd_update_every, + default_rrd_history_entries, + default_rrd_memory_mode, + default_health_enabled, + default_rrdpush_enabled, + default_rrdpush_destination, + default_rrdpush_api_key, + default_rrdpush_send_charts_matching, + default_rrdpush_enable_replication, + default_rrdpush_seconds_to_replicate, + default_rrdpush_replication_step, + rrdhost_labels_to_system_info(parser->user.host_define.rrdlabels), + false); + + rrdhost_option_set(host, RRDHOST_OPTION_VIRTUAL_HOST); + + if(host->rrdlabels) { + rrdlabels_migrate_to_these(host->rrdlabels, parser->user.host_define.rrdlabels); + } + else { + host->rrdlabels = parser->user.host_define.rrdlabels; + parser->user.host_define.rrdlabels = NULL; + } + + pluginsd_host_define_cleanup(parser); + + parser->user.host = host; + pluginsd_clear_scope_chart(parser, PLUGINSD_KEYWORD_HOST_DEFINE_END); + + rrdhost_flag_clear(host, RRDHOST_FLAG_ORPHAN); + rrdcontext_host_child_connected(host); + schedule_node_info_update(host); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_host(char **words, size_t num_words, PARSER *parser) { + char *guid = get_word(words, num_words, 1); + + if(!guid || !*guid || strcmp(guid, "localhost") == 0) { + parser->user.host = localhost; + return PARSER_RC_OK; + } + + uuid_t uuid; + char uuid_str[UUID_STR_LEN]; + if(!pluginsd_validate_machine_guid(guid, &uuid, uuid_str)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_HOST, "cannot parse MACHINE_GUID - is it a valid UUID?"); + + RRDHOST *host = rrdhost_find_by_guid(uuid_str); + if(unlikely(!host)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_HOST, "cannot find a host with this machine guid - have you created it?"); + + parser->user.host = host; + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_chart(char **words, size_t num_words, PARSER *parser) { + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_CHART); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + int idx = 1; + ssize_t slot = pluginsd_parse_rrd_slot(words, num_words); + if(slot >= 0) idx++; + + char *type = get_word(words, num_words, idx++); + char *name = get_word(words, num_words, idx++); + char *title = get_word(words, num_words, idx++); + char *units = get_word(words, num_words, idx++); + char *family = get_word(words, num_words, idx++); + char *context = get_word(words, num_words, idx++); + char *chart = get_word(words, num_words, idx++); + char *priority_s = get_word(words, num_words, idx++); + char *update_every_s = get_word(words, num_words, idx++); + char *options = get_word(words, num_words, idx++); + char *plugin = get_word(words, num_words, idx++); + char *module = get_word(words, num_words, idx++); + + // 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))) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_CHART, "missing parameters"); + + // parse the name, and make sure it does not include 'type.' + if (unlikely(name && *name)) { + // when data are streamed from child nodes + // 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 = parser->user.cd->update_every; + if (likely(update_every_s && *update_every_s)) + update_every = str2i(update_every_s); + if (unlikely(!update_every)) + update_every = parser->user.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"; + + netdata_log_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); + + RRDSET *st = NULL; + + st = rrdset_create( + host, type, id, name, family, context, title, units, + (plugin && *plugin) ? plugin : parser->user.cd->filename, + module, priority, update_every, + chart_type); + + bool obsolete = false; + if (likely(st)) { + if (options && *options) { + if (strstr(options, "obsolete")) { + rrdset_is_obsolete___safe_from_collector_thread(st); + obsolete = true; + } + else + rrdset_isnot_obsolete___safe_from_collector_thread(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___safe_from_collector_thread(st); + rrdset_flag_clear(st, RRDSET_FLAG_DETAIL); + rrdset_flag_clear(st, RRDSET_FLAG_STORE_FIRST); + } + + if(!pluginsd_set_scope_chart(parser, st, PLUGINSD_KEYWORD_CHART)) + return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + pluginsd_rrdset_cache_put_to_slot(parser, st, slot, obsolete); + } + else + pluginsd_clear_scope_chart(parser, PLUGINSD_KEYWORD_CHART); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_chart_definition_end(char **words, size_t num_words, PARSER *parser) { + const char *first_entry_txt = get_word(words, num_words, 1); + const char *last_entry_txt = get_word(words, num_words, 2); + const char *wall_clock_time_txt = get_word(words, num_words, 3); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_CHART_DEFINITION_END); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_CHART_DEFINITION_END, PLUGINSD_KEYWORD_CHART); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + time_t first_entry_child = (first_entry_txt && *first_entry_txt) ? (time_t)str2ul(first_entry_txt) : 0; + time_t last_entry_child = (last_entry_txt && *last_entry_txt) ? (time_t)str2ul(last_entry_txt) : 0; + time_t child_wall_clock_time = (wall_clock_time_txt && *wall_clock_time_txt) ? (time_t)str2ul(wall_clock_time_txt) : now_realtime_sec(); + + bool ok = true; + if(!rrdset_flag_check(st, RRDSET_FLAG_RECEIVER_REPLICATION_IN_PROGRESS)) { + +#ifdef NETDATA_LOG_REPLICATION_REQUESTS + st->replay.start_streaming = false; + st->replay.after = 0; + st->replay.before = 0; +#endif + + rrdset_flag_set(st, RRDSET_FLAG_RECEIVER_REPLICATION_IN_PROGRESS); + rrdset_flag_clear(st, RRDSET_FLAG_RECEIVER_REPLICATION_FINISHED); + rrdhost_receiver_replicating_charts_plus_one(st->rrdhost); + + ok = replicate_chart_request(send_to_plugin, parser, host, st, + first_entry_child, last_entry_child, child_wall_clock_time, + 0, 0); + } +#ifdef NETDATA_LOG_REPLICATION_REQUESTS + else { + internal_error(true, "REPLAY: 'host:%s/chart:%s' not sending duplicate replication request", + rrdhost_hostname(st->rrdhost), rrdset_id(st)); + } +#endif + + return ok ? PARSER_RC_OK : PARSER_RC_ERROR; +} + +static inline PARSER_RC pluginsd_dimension(char **words, size_t num_words, PARSER *parser) { + int idx = 1; + ssize_t slot = pluginsd_parse_rrd_slot(words, num_words); + if(slot >= 0) idx++; + + char *id = get_word(words, num_words, idx++); + char *name = get_word(words, num_words, idx++); + char *algorithm = get_word(words, num_words, idx++); + char *multiplier_s = get_word(words, num_words, idx++); + char *divisor_s = get_word(words, num_words, idx++); + char *options = get_word(words, num_words, idx++); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_DIMENSION); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_DIMENSION, PLUGINSD_KEYWORD_CHART); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + if (unlikely(!id)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DIMENSION, "missing dimension id"); + + long multiplier = 1; + if (multiplier_s && *multiplier_s) { + multiplier = str2ll_encoded(multiplier_s); + if (unlikely(!multiplier)) + multiplier = 1; + } + + long divisor = 1; + if (likely(divisor_s && *divisor_s)) { + divisor = str2ll_encoded(divisor_s); + if (unlikely(!divisor)) + divisor = 1; + } + + if (unlikely(!algorithm || !*algorithm)) + algorithm = "absolute"; + + if (unlikely(st && rrdset_flag_check(st, RRDSET_FLAG_DEBUG))) + netdata_log_debug( + D_PLUGINSD, + "creating dimension in chart %s, id='%s', name='%s', algorithm='%s', multiplier=%ld, divisor=%ld, hidden='%s'", + rrdset_id(st), 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)); + int unhide_dimension = 1; + + rrddim_option_clear(rd, RRDDIM_OPTION_DONT_DETECT_RESETS_OR_OVERFLOWS); + bool obsolete = false; + if (options && *options) { + if (strstr(options, "obsolete") != NULL) { + obsolete = true; + rrddim_is_obsolete___safe_from_collector_thread(st, rd); + } + else + rrddim_isnot_obsolete___safe_from_collector_thread(st, rd); + + unhide_dimension = !strstr(options, "hidden"); + + if (strstr(options, "noreset") != NULL) + rrddim_option_set(rd, RRDDIM_OPTION_DONT_DETECT_RESETS_OR_OVERFLOWS); + if (strstr(options, "nooverflow") != NULL) + rrddim_option_set(rd, RRDDIM_OPTION_DONT_DETECT_RESETS_OR_OVERFLOWS); + } + else + rrddim_isnot_obsolete___safe_from_collector_thread(st, rd); + + bool should_update_dimension = false; + + if (likely(unhide_dimension)) { + rrddim_option_clear(rd, RRDDIM_OPTION_HIDDEN); + should_update_dimension = rrddim_flag_check(rd, RRDDIM_FLAG_META_HIDDEN); + } + else { + rrddim_option_set(rd, RRDDIM_OPTION_HIDDEN); + should_update_dimension = !rrddim_flag_check(rd, RRDDIM_FLAG_META_HIDDEN); + } + + if (should_update_dimension) { + rrddim_flag_set(rd, RRDDIM_FLAG_METADATA_UPDATE); + rrdhost_flag_set(rd->rrdset->rrdhost, RRDHOST_FLAG_METADATA_UPDATE); + } + + pluginsd_rrddim_put_to_slot(parser, st, rd, slot, obsolete); + + return PARSER_RC_OK; +} + +// ---------------------------------------------------------------------------- +// execution of functions + +struct inflight_function { + int code; + int timeout; + STRING *function; + BUFFER *result_body_wb; + rrd_function_result_callback_t result_cb; + void *result_cb_data; + usec_t timeout_ut; + usec_t started_ut; + usec_t sent_ut; + const char *payload; + PARSER *parser; + bool virtual; +}; + +static void inflight_functions_insert_callback(const DICTIONARY_ITEM *item, void *func, void *parser_ptr) { + struct inflight_function *pf = func; + + PARSER *parser = parser_ptr; + + // leave this code as default, so that when the dictionary is destroyed this will be sent back to the caller + pf->code = HTTP_RESP_GATEWAY_TIMEOUT; + + const char *transaction = dictionary_acquired_item_name(item); + + char buffer[2048 + 1]; + snprintfz(buffer, sizeof(buffer) - 1, "%s %s %d \"%s\"\n", + pf->payload ? "FUNCTION_PAYLOAD" : "FUNCTION", + transaction, + pf->timeout, + string2str(pf->function)); + + // send the command to the plugin + ssize_t ret = send_to_plugin(buffer, parser); + + pf->sent_ut = now_realtime_usec(); + + if(ret < 0) { + netdata_log_error("FUNCTION '%s': failed to send it to the plugin, error %zd", string2str(pf->function), ret); + rrd_call_function_error(pf->result_body_wb, "Failed to communicate with collector", HTTP_RESP_SERVICE_UNAVAILABLE); + } + else { + internal_error(LOG_FUNCTIONS, + "FUNCTION '%s' with transaction '%s' sent to collector (%zd bytes, in %"PRIu64" usec)", + string2str(pf->function), dictionary_acquired_item_name(item), ret, + pf->sent_ut - pf->started_ut); + } + + if (!pf->payload) + return; + + // send the payload to the plugin + ret = send_to_plugin(pf->payload, parser); + + if(ret < 0) { + netdata_log_error("FUNCTION_PAYLOAD '%s': failed to send function to plugin, error %zd", string2str(pf->function), ret); + rrd_call_function_error(pf->result_body_wb, "Failed to communicate with collector", HTTP_RESP_SERVICE_UNAVAILABLE); + } + else { + internal_error(LOG_FUNCTIONS, + "FUNCTION_PAYLOAD '%s' with transaction '%s' sent to collector (%zd bytes, in %"PRIu64" usec)", + string2str(pf->function), dictionary_acquired_item_name(item), ret, + pf->sent_ut - pf->started_ut); + } + + send_to_plugin("\nFUNCTION_PAYLOAD_END\n", parser); +} + +static bool inflight_functions_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *func __maybe_unused, void *new_func, void *parser_ptr __maybe_unused) { + struct inflight_function *pf = new_func; + + netdata_log_error("PLUGINSD_PARSER: duplicate UUID on pending function '%s' detected. Ignoring the second one.", string2str(pf->function)); + pf->code = rrd_call_function_error(pf->result_body_wb, "This request is already in progress", HTTP_RESP_BAD_REQUEST); + pf->result_cb(pf->result_body_wb, pf->code, pf->result_cb_data); + string_freez(pf->function); + + return false; +} + +void delete_job_finalize(struct parser *parser __maybe_unused, struct configurable_plugin *plug, const char *fnc_sig, int code) { + if (code != DYNCFG_VFNC_RET_CFG_ACCEPTED) + return; + + char *params_local = strdupz(fnc_sig); + char *words[DYNCFG_MAX_WORDS]; + size_t words_c = quoted_strings_splitter(params_local, words, DYNCFG_MAX_WORDS, isspace_map_pluginsd); + + if (words_c != 3) { + netdata_log_error("PLUGINSD_PARSER: invalid number of parameters for delete_job"); + freez(params_local); + return; + } + + const char *module = words[1]; + const char *job = words[2]; + + delete_job(plug, module, job); + + unlink_job(plug->name, module, job); + + rrdpush_send_job_deleted(localhost, plug->name, module, job); + + freez(params_local); +} + +void set_job_finalize(struct parser *parser __maybe_unused, struct configurable_plugin *plug __maybe_unused, const char *fnc_sig, int code) { + if (code != DYNCFG_VFNC_RET_CFG_ACCEPTED) + return; + + char *params_local = strdupz(fnc_sig); + char *words[DYNCFG_MAX_WORDS]; + size_t words_c = quoted_strings_splitter(params_local, words, DYNCFG_MAX_WORDS, isspace_map_pluginsd); + + if (words_c != 3) { + netdata_log_error("PLUGINSD_PARSER: invalid number of parameters for set_job_config"); + freez(params_local); + return; + } + + const char *module_name = get_word(words, words_c, 1); + const char *job_name = get_word(words, words_c, 2); + + if (register_job(parser->user.host->configurable_plugins, parser->user.cd->configuration->name, module_name, job_name, JOB_TYPE_USER, JOB_FLG_USER_CREATED, 1)) { + freez(params_local); + return; + } + + // only send this if it is not existing already (register_job cares for that) + rrdpush_send_dyncfg_reg_job(localhost, parser->user.cd->configuration->name, module_name, job_name, JOB_TYPE_USER, JOB_FLG_USER_CREATED); + + freez(params_local); +} + +static void inflight_functions_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *func, void *parser_ptr) { + struct inflight_function *pf = func; + struct parser *parser = (struct parser *)parser_ptr; + + internal_error(LOG_FUNCTIONS, + "FUNCTION '%s' result of transaction '%s' received from collector (%zu bytes, request %"PRIu64" usec, response %"PRIu64" usec)", + string2str(pf->function), dictionary_acquired_item_name(item), + buffer_strlen(pf->result_body_wb), pf->sent_ut - pf->started_ut, now_realtime_usec() - pf->sent_ut); + + if (pf->virtual && SERVING_PLUGINSD(parser)) { + if (pf->payload) { + if (strncmp(string2str(pf->function), FUNCTION_NAME_SET_JOB_CONFIG, strlen(FUNCTION_NAME_SET_JOB_CONFIG)) == 0) + set_job_finalize(parser, parser->user.cd->configuration, string2str(pf->function), pf->code); + dyn_conf_store_config(string2str(pf->function), pf->payload, parser->user.cd->configuration); + } else if (strncmp(string2str(pf->function), FUNCTION_NAME_DELETE_JOB, strlen(FUNCTION_NAME_DELETE_JOB)) == 0) { + delete_job_finalize(parser, parser->user.cd->configuration, string2str(pf->function), pf->code); + } + } + + pf->result_cb(pf->result_body_wb, pf->code, pf->result_cb_data); + + string_freez(pf->function); + freez((void *)pf->payload); +} + +void inflight_functions_init(PARSER *parser) { + parser->inflight.functions = dictionary_create_advanced(DICT_OPTION_DONT_OVERWRITE_VALUE, &dictionary_stats_category_functions, 0); + dictionary_register_insert_callback(parser->inflight.functions, inflight_functions_insert_callback, parser); + dictionary_register_delete_callback(parser->inflight.functions, inflight_functions_delete_callback, parser); + dictionary_register_conflict_callback(parser->inflight.functions, inflight_functions_conflict_callback, parser); +} + +static void inflight_functions_garbage_collect(PARSER *parser, usec_t now) { + parser->inflight.smaller_timeout = 0; + struct inflight_function *pf; + dfe_start_write(parser->inflight.functions, pf) { + if (pf->timeout_ut < now) { + internal_error(true, + "FUNCTION '%s' removing expired transaction '%s', after %"PRIu64" usec.", + string2str(pf->function), pf_dfe.name, now - pf->started_ut); + + if(!buffer_strlen(pf->result_body_wb) || pf->code == HTTP_RESP_OK) + pf->code = rrd_call_function_error(pf->result_body_wb, + "Timeout waiting for collector response.", + HTTP_RESP_GATEWAY_TIMEOUT); + + dictionary_del(parser->inflight.functions, pf_dfe.name); + } + + else if(!parser->inflight.smaller_timeout || pf->timeout_ut < parser->inflight.smaller_timeout) + parser->inflight.smaller_timeout = pf->timeout_ut; + } + dfe_done(pf); +} + +void pluginsd_function_cancel(void *data) { + struct inflight_function *look_for = data, *t; + + bool sent = false; + dfe_start_read(look_for->parser->inflight.functions, t) { + if(look_for == t) { + const char *transaction = t_dfe.name; + + internal_error(true, "PLUGINSD: sending function cancellation to plugin for transaction '%s'", transaction); + + char buffer[2048 + 1]; + snprintfz(buffer, sizeof(buffer) - 1, "%s %s\n", + PLUGINSD_KEYWORD_FUNCTION_CANCEL, + transaction); + + // send the command to the plugin + ssize_t ret = send_to_plugin(buffer, t->parser); + if(ret < 0) + sent = true; + + break; + } + } + dfe_done(t); + + if(sent <= 0) + nd_log(NDLS_DAEMON, NDLP_DEBUG, + "PLUGINSD: FUNCTION_CANCEL request didn't match any pending function requests in pluginsd.d."); +} + +// this is the function that is called from +// rrd_call_function_and_wait() and rrd_call_function_async() +static int pluginsd_function_execute_cb(BUFFER *result_body_wb, int timeout, const char *function, + void *execute_cb_data, + rrd_function_result_callback_t result_cb, void *result_cb_data, + rrd_function_is_cancelled_cb_t is_cancelled_cb __maybe_unused, + void *is_cancelled_cb_data __maybe_unused, + rrd_function_register_canceller_cb_t register_canceller_cb, + void *register_canceller_db_data) { + PARSER *parser = execute_cb_data; + + usec_t now = now_realtime_usec(); + + struct inflight_function tmp = { + .started_ut = now, + .timeout_ut = now + timeout * USEC_PER_SEC + RRDFUNCTIONS_TIMEOUT_EXTENSION_UT, + .result_body_wb = result_body_wb, + .timeout = timeout, + .function = string_strdupz(function), + .result_cb = result_cb, + .result_cb_data = result_cb_data, + .payload = NULL, + .parser = parser, + }; + + uuid_t uuid; + uuid_generate_random(uuid); + + char transaction[UUID_STR_LEN]; + uuid_unparse_lower(uuid, transaction); + + dictionary_write_lock(parser->inflight.functions); + + // if there is any error, our dictionary callbacks will call the caller callback to notify + // the caller about the error - no need for error handling here. + void *t = dictionary_set(parser->inflight.functions, transaction, &tmp, sizeof(struct inflight_function)); + if(register_canceller_cb) + register_canceller_cb(register_canceller_db_data, pluginsd_function_cancel, t); + + if(!parser->inflight.smaller_timeout || tmp.timeout_ut < parser->inflight.smaller_timeout) + parser->inflight.smaller_timeout = tmp.timeout_ut; + + // garbage collect stale inflight functions + if(parser->inflight.smaller_timeout < now) + inflight_functions_garbage_collect(parser, now); + + dictionary_write_unlock(parser->inflight.functions); + + return HTTP_RESP_OK; +} + +static inline PARSER_RC pluginsd_function(char **words, size_t num_words, PARSER *parser) { + // a plugin or a child is registering a function + + bool global = false; + size_t i = 1; + if(num_words >= 2 && strcmp(get_word(words, num_words, 1), "GLOBAL") == 0) { + i++; + global = true; + } + + char *name = get_word(words, num_words, i++); + char *timeout_s = get_word(words, num_words, i++); + char *help = get_word(words, num_words, i++); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_FUNCTION); + if(!host) return PARSER_RC_ERROR; + + RRDSET *st = (global)? NULL: pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_FUNCTION, PLUGINSD_KEYWORD_CHART); + if(!st) global = true; + + if (unlikely(!timeout_s || !name || !help || (!global && !st))) { + netdata_log_error("PLUGINSD: 'host:%s/chart:%s' got a FUNCTION, without providing the required data (global = '%s', name = '%s', timeout = '%s', help = '%s'). Ignoring it.", + rrdhost_hostname(host), + st?rrdset_id(st):"(unset)", + global?"yes":"no", + name?name:"(unset)", + timeout_s?timeout_s:"(unset)", + help?help:"(unset)" + ); + return PARSER_RC_ERROR; + } + + int timeout = PLUGINS_FUNCTIONS_TIMEOUT_DEFAULT; + if (timeout_s && *timeout_s) { + timeout = str2i(timeout_s); + if (unlikely(timeout <= 0)) + timeout = PLUGINS_FUNCTIONS_TIMEOUT_DEFAULT; + } + + rrd_function_add(host, st, name, timeout, help, false, pluginsd_function_execute_cb, parser); + + parser->user.data_collections_count++; + + return PARSER_RC_OK; +} + +static void pluginsd_function_result_end(struct parser *parser, void *action_data) { + STRING *key = action_data; + if(key) + dictionary_del(parser->inflight.functions, string2str(key)); + string_freez(key); + + parser->user.data_collections_count++; +} + +static inline PARSER_RC pluginsd_function_result_begin(char **words, size_t num_words, PARSER *parser) { + char *key = get_word(words, num_words, 1); + char *status = get_word(words, num_words, 2); + char *format = get_word(words, num_words, 3); + char *expires = get_word(words, num_words, 4); + + if (unlikely(!key || !*key || !status || !*status || !format || !*format || !expires || !*expires)) { + netdata_log_error("got a " PLUGINSD_KEYWORD_FUNCTION_RESULT_BEGIN " without providing the required data (key = '%s', status = '%s', format = '%s', expires = '%s')." + , key ? key : "(unset)" + , status ? status : "(unset)" + , format ? format : "(unset)" + , expires ? expires : "(unset)" + ); + } + + int code = (status && *status) ? str2i(status) : 0; + if (code <= 0) + code = HTTP_RESP_BACKEND_RESPONSE_INVALID; + + time_t expiration = (expires && *expires) ? str2l(expires) : 0; + + struct inflight_function *pf = NULL; + + if(key && *key) + pf = (struct inflight_function *)dictionary_get(parser->inflight.functions, key); + + if(!pf) { + netdata_log_error("got a " PLUGINSD_KEYWORD_FUNCTION_RESULT_BEGIN " for transaction '%s', but the transaction is not found.", key?key:"(unset)"); + } + else { + if(format && *format) + pf->result_body_wb->content_type = functions_format_to_content_type(format); + + pf->code = code; + + pf->result_body_wb->expires = expiration; + if(expiration <= now_realtime_sec()) + buffer_no_cacheable(pf->result_body_wb); + else + buffer_cacheable(pf->result_body_wb); + } + + parser->defer.response = (pf) ? pf->result_body_wb : NULL; + parser->defer.end_keyword = PLUGINSD_KEYWORD_FUNCTION_RESULT_END; + parser->defer.action = pluginsd_function_result_end; + parser->defer.action_data = string_strdupz(key); // it is ok is key is NULL + parser->flags |= PARSER_DEFER_UNTIL_KEYWORD; + + return PARSER_RC_OK; +} + +// ---------------------------------------------------------------------------- + +static inline PARSER_RC pluginsd_variable(char **words, size_t num_words, PARSER *parser) { + char *name = get_word(words, num_words, 1); + char *value = get_word(words, num_words, 2); + NETDATA_DOUBLE v; + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_VARIABLE); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_get_scope_chart(parser); + + int global = (st) ? 0 : 1; + + if (name && *name) { + if ((strcmp(name, "GLOBAL") == 0 || strcmp(name, "HOST") == 0)) { + global = 1; + name = get_word(words, num_words, 2); + value = get_word(words, num_words, 3); + } else if ((strcmp(name, "LOCAL") == 0 || strcmp(name, "CHART") == 0)) { + global = 0; + name = get_word(words, num_words, 2); + value = get_word(words, num_words, 3); + } + } + + if (unlikely(!name || !*name)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_VARIABLE, "missing variable name"); + + if (unlikely(!value || !*value)) + value = NULL; + + if (unlikely(!value)) { + netdata_log_error("PLUGINSD: 'host:%s/chart:%s' cannot set %s VARIABLE '%s' to an empty value", + rrdhost_hostname(host), + st ? rrdset_id(st):"UNSET", + (global) ? "HOST" : "CHART", + name); + return PARSER_RC_OK; + } + + if (!global && !st) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_VARIABLE, "no chart is defined and no GLOBAL is given"); + + char *endptr = NULL; + v = (NETDATA_DOUBLE) str2ndd_encoded(value, &endptr); + if (unlikely(endptr && *endptr)) { + if (endptr == value) + netdata_log_error("PLUGINSD: 'host:%s/chart:%s' the value '%s' of VARIABLE '%s' cannot be parsed as a number", + rrdhost_hostname(host), + st ? rrdset_id(st):"UNSET", + value, + name); + else + netdata_log_error("PLUGINSD: 'host:%s/chart:%s' the value '%s' of VARIABLE '%s' has leftovers: '%s'", + rrdhost_hostname(host), + st ? rrdset_id(st):"UNSET", + value, + name, + endptr); + } + + if (global) { + const RRDVAR_ACQUIRED *rva = rrdvar_custom_host_variable_add_and_acquire(host, name); + if (rva) { + rrdvar_custom_host_variable_set(host, rva, v); + rrdvar_custom_host_variable_release(host, rva); + } + else + netdata_log_error("PLUGINSD: 'host:%s' cannot find/create HOST VARIABLE '%s'", + rrdhost_hostname(host), + name); + } else { + const RRDSETVAR_ACQUIRED *rsa = rrdsetvar_custom_chart_variable_add_and_acquire(st, name); + if (rsa) { + rrdsetvar_custom_chart_variable_set(st, rsa, v); + rrdsetvar_custom_chart_variable_release(st, rsa); + } + else + netdata_log_error("PLUGINSD: 'host:%s/chart:%s' cannot find/create CHART VARIABLE '%s'", + rrdhost_hostname(host), rrdset_id(st), name); + } + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_flush(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser) { + netdata_log_debug(D_PLUGINSD, "requested a " PLUGINSD_KEYWORD_FLUSH); + pluginsd_clear_scope_chart(parser, PLUGINSD_KEYWORD_FLUSH); + parser->user.replay.start_time = 0; + parser->user.replay.end_time = 0; + parser->user.replay.start_time_ut = 0; + parser->user.replay.end_time_ut = 0; + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_disable(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser) { + netdata_log_info("PLUGINSD: plugin called DISABLE. Disabling it."); + parser->user.enabled = 0; + return PARSER_RC_STOP; +} + +static inline PARSER_RC pluginsd_label(char **words, size_t num_words, PARSER *parser) { + const char *name = get_word(words, num_words, 1); + const char *label_source = get_word(words, num_words, 2); + const char *value = get_word(words, num_words, 3); + + if (!name || !label_source || !value) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_LABEL, "missing parameters"); + + char *store = (char *)value; + bool allocated_store = false; + + if(unlikely(num_words > 4)) { + allocated_store = true; + store = mallocz(PLUGINSD_LINE_MAX + 1); + size_t remaining = PLUGINSD_LINE_MAX; + char *move = store; + char *word; + for(size_t i = 3; i < num_words && remaining > 2 && (word = get_word(words, num_words, i)) ;i++) { + if(i > 3) { + *move++ = ' '; + *move = '\0'; + remaining--; + } + + size_t length = strlen(word); + if (length > remaining) + length = remaining; + + remaining -= length; + memcpy(move, word, length); + move += length; + *move = '\0'; + } + } + + if(unlikely(!(parser->user.new_host_labels))) + parser->user.new_host_labels = rrdlabels_create(); + + if (strcmp(name,HOST_LABEL_IS_EPHEMERAL) == 0) { + int is_ephemeral = appconfig_test_boolean_value((char *) value); + if (is_ephemeral) { + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_LABEL); + if (likely(host)) + rrdhost_option_set(host, RRDHOST_OPTION_EPHEMERAL_HOST); + } + } + + rrdlabels_add(parser->user.new_host_labels, name, store, str2l(label_source)); + + if (allocated_store) + freez(store); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_overwrite(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser) { + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_OVERWRITE); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + netdata_log_debug(D_PLUGINSD, "requested to OVERWRITE host labels"); + + if(unlikely(!host->rrdlabels)) + host->rrdlabels = rrdlabels_create(); + + rrdlabels_migrate_to_these(host->rrdlabels, parser->user.new_host_labels); + if (rrdhost_option_check(host, RRDHOST_OPTION_EPHEMERAL_HOST)) + rrdlabels_add(host->rrdlabels, HOST_LABEL_IS_EPHEMERAL, "true", RRDLABEL_SRC_CONFIG); + rrdhost_flag_set(host, RRDHOST_FLAG_METADATA_LABELS | RRDHOST_FLAG_METADATA_UPDATE); + + rrdlabels_destroy(parser->user.new_host_labels); + parser->user.new_host_labels = NULL; + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_clabel(char **words, size_t num_words, PARSER *parser) { + const char *name = get_word(words, num_words, 1); + const char *value = get_word(words, num_words, 2); + const char *label_source = get_word(words, num_words, 3); + + if (!name || !value || !label_source) { + netdata_log_error("Ignoring malformed or empty CHART LABEL command."); + return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + } + + if(unlikely(!parser->user.chart_rrdlabels_linked_temporarily)) { + RRDSET *st = pluginsd_get_scope_chart(parser); + parser->user.chart_rrdlabels_linked_temporarily = st->rrdlabels; + rrdlabels_unmark_all(parser->user.chart_rrdlabels_linked_temporarily); + } + + rrdlabels_add(parser->user.chart_rrdlabels_linked_temporarily, name, value, str2l(label_source)); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_clabel_commit(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser) { + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_CLABEL_COMMIT); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_CLABEL_COMMIT, PLUGINSD_KEYWORD_BEGIN); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + netdata_log_debug(D_PLUGINSD, "requested to commit chart labels"); + + if(!parser->user.chart_rrdlabels_linked_temporarily) { + netdata_log_error("PLUGINSD: 'host:%s' got CLABEL_COMMIT, without a CHART or BEGIN. Ignoring it.", rrdhost_hostname(host)); + return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + } + + rrdlabels_remove_all_unmarked(parser->user.chart_rrdlabels_linked_temporarily); + + rrdset_flag_set(st, RRDSET_FLAG_METADATA_UPDATE); + rrdhost_flag_set(st->rrdhost, RRDHOST_FLAG_METADATA_UPDATE); + rrdset_metadata_updated(st); + + parser->user.chart_rrdlabels_linked_temporarily = NULL; + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_replay_begin(char **words, size_t num_words, PARSER *parser) { + int idx = 1; + ssize_t slot = pluginsd_parse_rrd_slot(words, num_words); + if(slot >= 0) idx++; + + char *id = get_word(words, num_words, idx++); + char *start_time_str = get_word(words, num_words, idx++); + char *end_time_str = get_word(words, num_words, idx++); + char *child_now_str = get_word(words, num_words, idx++); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_REPLAY_BEGIN); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st; + if (likely(!id || !*id)) + st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_REPLAY_BEGIN, PLUGINSD_KEYWORD_REPLAY_BEGIN); + else + st = pluginsd_rrdset_cache_get_from_slot(parser, host, id, slot, PLUGINSD_KEYWORD_REPLAY_BEGIN); + + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + if(!pluginsd_set_scope_chart(parser, st, PLUGINSD_KEYWORD_REPLAY_BEGIN)) + return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + if(start_time_str && end_time_str) { + time_t start_time = (time_t) str2ull_encoded(start_time_str); + time_t end_time = (time_t) str2ull_encoded(end_time_str); + + time_t wall_clock_time = 0, tolerance; + bool wall_clock_comes_from_child; (void)wall_clock_comes_from_child; + if(child_now_str) { + wall_clock_time = (time_t) str2ull_encoded(child_now_str); + tolerance = st->update_every + 1; + wall_clock_comes_from_child = true; + } + + if(wall_clock_time <= 0) { + wall_clock_time = now_realtime_sec(); + tolerance = st->update_every + 5; + wall_clock_comes_from_child = false; + } + +#ifdef NETDATA_LOG_REPLICATION_REQUESTS + internal_error( + (!st->replay.start_streaming && (end_time < st->replay.after || start_time > st->replay.before)), + "REPLAY ERROR: 'host:%s/chart:%s' got a " PLUGINSD_KEYWORD_REPLAY_BEGIN " from %ld to %ld, which does not match our request (%ld to %ld).", + rrdhost_hostname(st->rrdhost), rrdset_id(st), start_time, end_time, st->replay.after, st->replay.before); + + internal_error( + true, + "REPLAY: 'host:%s/chart:%s' got a " PLUGINSD_KEYWORD_REPLAY_BEGIN " from %ld to %ld, child wall clock is %ld (%s), had requested %ld to %ld", + rrdhost_hostname(st->rrdhost), rrdset_id(st), + start_time, end_time, wall_clock_time, wall_clock_comes_from_child ? "from child" : "parent time", + st->replay.after, st->replay.before); +#endif + + if(start_time && end_time && start_time < wall_clock_time + tolerance && end_time < wall_clock_time + tolerance && start_time < end_time) { + if (unlikely(end_time - start_time != st->update_every)) + rrdset_set_update_every_s(st, end_time - start_time); + + st->last_collected_time.tv_sec = end_time; + st->last_collected_time.tv_usec = 0; + + st->last_updated.tv_sec = end_time; + st->last_updated.tv_usec = 0; + + st->counter++; + st->counter_done++; + + // these are only needed for db mode RAM, SAVE, MAP, ALLOC + st->db.current_entry++; + if(st->db.current_entry >= st->db.entries) + st->db.current_entry -= st->db.entries; + + parser->user.replay.start_time = start_time; + parser->user.replay.end_time = end_time; + parser->user.replay.start_time_ut = (usec_t) start_time * USEC_PER_SEC; + parser->user.replay.end_time_ut = (usec_t) end_time * USEC_PER_SEC; + parser->user.replay.wall_clock_time = wall_clock_time; + parser->user.replay.rset_enabled = true; + + return PARSER_RC_OK; + } + + netdata_log_error("PLUGINSD REPLAY ERROR: 'host:%s/chart:%s' got a " PLUGINSD_KEYWORD_REPLAY_BEGIN + " from %ld to %ld, but timestamps are invalid " + "(now is %ld [%s], tolerance %ld). Ignoring " PLUGINSD_KEYWORD_REPLAY_SET, + rrdhost_hostname(st->rrdhost), rrdset_id(st), start_time, end_time, + wall_clock_time, wall_clock_comes_from_child ? "child wall clock" : "parent wall clock", + tolerance); + } + + // the child sends an RBEGIN without any parameters initially + // setting rset_enabled to false, means the RSET should not store any metrics + // to store metrics, the RBEGIN needs to have timestamps + parser->user.replay.start_time = 0; + parser->user.replay.end_time = 0; + parser->user.replay.start_time_ut = 0; + parser->user.replay.end_time_ut = 0; + parser->user.replay.wall_clock_time = 0; + parser->user.replay.rset_enabled = false; + return PARSER_RC_OK; +} + +static inline SN_FLAGS pluginsd_parse_storage_number_flags(const char *flags_str) { + SN_FLAGS flags = SN_FLAG_NONE; + + char c; + while ((c = *flags_str++)) { + switch (c) { + case 'A': + flags |= SN_FLAG_NOT_ANOMALOUS; + break; + + case 'R': + flags |= SN_FLAG_RESET; + break; + + case 'E': + flags = SN_EMPTY_SLOT; + return flags; + + default: + internal_error(true, "Unknown SN_FLAGS flag '%c'", c); + break; + } + } + + return flags; +} + +static inline PARSER_RC pluginsd_replay_set(char **words, size_t num_words, PARSER *parser) { + int idx = 1; + ssize_t slot = pluginsd_parse_rrd_slot(words, num_words); + if(slot >= 0) idx++; + + char *dimension = get_word(words, num_words, idx++); + char *value_str = get_word(words, num_words, idx++); + char *flags_str = get_word(words, num_words, idx++); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_REPLAY_SET); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_REPLAY_SET, PLUGINSD_KEYWORD_REPLAY_BEGIN); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + if(!parser->user.replay.rset_enabled) { + nd_log_limit_static_thread_var(erl, 1, 0); + nd_log_limit(&erl, NDLS_COLLECTORS, NDLP_ERR, + "PLUGINSD: 'host:%s/chart:%s' got a %s but it is disabled by %s errors", + rrdhost_hostname(host), rrdset_id(st), PLUGINSD_KEYWORD_REPLAY_SET, PLUGINSD_KEYWORD_REPLAY_BEGIN); + + // we have to return OK here + return PARSER_RC_OK; + } + + RRDDIM *rd = pluginsd_acquire_dimension(host, st, dimension, slot, PLUGINSD_KEYWORD_REPLAY_SET); + if(!rd) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + st->pluginsd.set = true; + + if (unlikely(!parser->user.replay.start_time || !parser->user.replay.end_time)) { + netdata_log_error("PLUGINSD: 'host:%s/chart:%s/dim:%s' got a %s with invalid timestamps %ld to %ld from a %s. Disabling it.", + rrdhost_hostname(host), + rrdset_id(st), + dimension, + PLUGINSD_KEYWORD_REPLAY_SET, + parser->user.replay.start_time, + parser->user.replay.end_time, + PLUGINSD_KEYWORD_REPLAY_BEGIN); + return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + } + + if (unlikely(!value_str || !*value_str)) + value_str = "NAN"; + + if(unlikely(!flags_str)) + flags_str = ""; + + if (likely(value_str)) { + RRDDIM_FLAGS rd_flags = rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE | RRDDIM_FLAG_ARCHIVED); + + if(!(rd_flags & RRDDIM_FLAG_ARCHIVED)) { + NETDATA_DOUBLE value = str2ndd_encoded(value_str, NULL); + SN_FLAGS flags = pluginsd_parse_storage_number_flags(flags_str); + + if (!netdata_double_isnumber(value) || (flags == SN_EMPTY_SLOT)) { + value = NAN; + flags = SN_EMPTY_SLOT; + } + + rrddim_store_metric(rd, parser->user.replay.end_time_ut, value, flags); + rd->collector.last_collected_time.tv_sec = parser->user.replay.end_time; + rd->collector.last_collected_time.tv_usec = 0; + rd->collector.counter++; + } + else { + nd_log_limit_static_global_var(erl, 1, 0); + nd_log_limit(&erl, NDLS_COLLECTORS, NDLP_WARNING, + "PLUGINSD: 'host:%s/chart:%s/dim:%s' has the ARCHIVED flag set, but it is replicated. " + "Ignoring data.", + rrdhost_hostname(st->rrdhost), rrdset_id(st), rrddim_name(rd)); + } + } + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_replay_rrddim_collection_state(char **words, size_t num_words, PARSER *parser) { + if(parser->user.replay.rset_enabled == false) + return PARSER_RC_OK; + + int idx = 1; + ssize_t slot = pluginsd_parse_rrd_slot(words, num_words); + if(slot >= 0) idx++; + + char *dimension = get_word(words, num_words, idx++); + char *last_collected_ut_str = get_word(words, num_words, idx++); + char *last_collected_value_str = get_word(words, num_words, idx++); + char *last_calculated_value_str = get_word(words, num_words, idx++); + char *last_stored_value_str = get_word(words, num_words, idx++); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_REPLAY_RRDDIM_STATE); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_REPLAY_RRDDIM_STATE, PLUGINSD_KEYWORD_REPLAY_BEGIN); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + if(st->pluginsd.set) { + // reset pos to reuse the same RDAs + st->pluginsd.pos = 0; + st->pluginsd.set = false; + } + + RRDDIM *rd = pluginsd_acquire_dimension(host, st, dimension, slot, PLUGINSD_KEYWORD_REPLAY_RRDDIM_STATE); + if(!rd) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + usec_t dim_last_collected_ut = (usec_t)rd->collector.last_collected_time.tv_sec * USEC_PER_SEC + (usec_t)rd->collector.last_collected_time.tv_usec; + usec_t last_collected_ut = last_collected_ut_str ? str2ull_encoded(last_collected_ut_str) : 0; + if(last_collected_ut > dim_last_collected_ut) { + rd->collector.last_collected_time.tv_sec = (time_t)(last_collected_ut / USEC_PER_SEC); + rd->collector.last_collected_time.tv_usec = (last_collected_ut % USEC_PER_SEC); + } + + rd->collector.last_collected_value = last_collected_value_str ? str2ll_encoded(last_collected_value_str) : 0; + rd->collector.last_calculated_value = last_calculated_value_str ? str2ndd_encoded(last_calculated_value_str, NULL) : 0; + rd->collector.last_stored_value = last_stored_value_str ? str2ndd_encoded(last_stored_value_str, NULL) : 0.0; + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_replay_rrdset_collection_state(char **words, size_t num_words, PARSER *parser) { + if(parser->user.replay.rset_enabled == false) + return PARSER_RC_OK; + + char *last_collected_ut_str = get_word(words, num_words, 1); + char *last_updated_ut_str = get_word(words, num_words, 2); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_REPLAY_RRDSET_STATE); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_REPLAY_RRDSET_STATE, + PLUGINSD_KEYWORD_REPLAY_BEGIN); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + usec_t chart_last_collected_ut = (usec_t)st->last_collected_time.tv_sec * USEC_PER_SEC + (usec_t)st->last_collected_time.tv_usec; + usec_t last_collected_ut = last_collected_ut_str ? str2ull_encoded(last_collected_ut_str) : 0; + if(last_collected_ut > chart_last_collected_ut) { + st->last_collected_time.tv_sec = (time_t)(last_collected_ut / USEC_PER_SEC); + st->last_collected_time.tv_usec = (last_collected_ut % USEC_PER_SEC); + } + + usec_t chart_last_updated_ut = (usec_t)st->last_updated.tv_sec * USEC_PER_SEC + (usec_t)st->last_updated.tv_usec; + usec_t last_updated_ut = last_updated_ut_str ? str2ull_encoded(last_updated_ut_str) : 0; + if(last_updated_ut > chart_last_updated_ut) { + st->last_updated.tv_sec = (time_t)(last_updated_ut / USEC_PER_SEC); + st->last_updated.tv_usec = (last_updated_ut % USEC_PER_SEC); + } + + st->counter++; + st->counter_done++; + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_replay_end(char **words, size_t num_words, PARSER *parser) { + if (num_words < 7) { // accepts 7, but the 7th is optional + netdata_log_error("REPLAY: malformed " PLUGINSD_KEYWORD_REPLAY_END " command"); + return PARSER_RC_ERROR; + } + + const char *update_every_child_txt = get_word(words, num_words, 1); + const char *first_entry_child_txt = get_word(words, num_words, 2); + const char *last_entry_child_txt = get_word(words, num_words, 3); + const char *start_streaming_txt = get_word(words, num_words, 4); + const char *first_entry_requested_txt = get_word(words, num_words, 5); + const char *last_entry_requested_txt = get_word(words, num_words, 6); + const char *child_world_time_txt = get_word(words, num_words, 7); // optional + + time_t update_every_child = (time_t) str2ull_encoded(update_every_child_txt); + time_t first_entry_child = (time_t) str2ull_encoded(first_entry_child_txt); + time_t last_entry_child = (time_t) str2ull_encoded(last_entry_child_txt); + + bool start_streaming = (strcmp(start_streaming_txt, "true") == 0); + time_t first_entry_requested = (time_t) str2ull_encoded(first_entry_requested_txt); + time_t last_entry_requested = (time_t) str2ull_encoded(last_entry_requested_txt); + + // the optional child world time + time_t child_world_time = (child_world_time_txt && *child_world_time_txt) ? (time_t) str2ull_encoded( + child_world_time_txt) : now_realtime_sec(); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_REPLAY_END); + if(!host) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_REPLAY_END, PLUGINSD_KEYWORD_REPLAY_BEGIN); + if(!st) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + +#ifdef NETDATA_LOG_REPLICATION_REQUESTS + internal_error(true, + "PLUGINSD REPLAY: 'host:%s/chart:%s': got a " PLUGINSD_KEYWORD_REPLAY_END " child db from %llu to %llu, start_streaming %s, had requested from %llu to %llu, wall clock %llu", + rrdhost_hostname(host), rrdset_id(st), + (unsigned long long)first_entry_child, (unsigned long long)last_entry_child, + start_streaming?"true":"false", + (unsigned long long)first_entry_requested, (unsigned long long)last_entry_requested, + (unsigned long long)child_world_time + ); +#endif + + parser->user.data_collections_count++; + + if(parser->user.replay.rset_enabled && st->rrdhost->receiver) { + time_t now = now_realtime_sec(); + time_t started = st->rrdhost->receiver->replication_first_time_t; + time_t current = parser->user.replay.end_time; + + if(started && current > started) { + host->rrdpush_receiver_replication_percent = (NETDATA_DOUBLE) (current - started) * 100.0 / (NETDATA_DOUBLE) (now - started); + worker_set_metric(WORKER_RECEIVER_JOB_REPLICATION_COMPLETION, + host->rrdpush_receiver_replication_percent); + } + } + + parser->user.replay.start_time = 0; + parser->user.replay.end_time = 0; + parser->user.replay.start_time_ut = 0; + parser->user.replay.end_time_ut = 0; + parser->user.replay.wall_clock_time = 0; + parser->user.replay.rset_enabled = false; + + st->counter++; + st->counter_done++; + store_metric_collection_completed(); + +#ifdef NETDATA_LOG_REPLICATION_REQUESTS + st->replay.start_streaming = false; + st->replay.after = 0; + st->replay.before = 0; + if(start_streaming) + st->replay.log_next_data_collection = true; +#endif + + if (start_streaming) { + if (st->update_every != update_every_child) + rrdset_set_update_every_s(st, update_every_child); + + if(rrdset_flag_check(st, RRDSET_FLAG_RECEIVER_REPLICATION_IN_PROGRESS)) { + rrdset_flag_set(st, RRDSET_FLAG_RECEIVER_REPLICATION_FINISHED); + rrdset_flag_clear(st, RRDSET_FLAG_RECEIVER_REPLICATION_IN_PROGRESS); + rrdset_flag_clear(st, RRDSET_FLAG_SYNC_CLOCK); + rrdhost_receiver_replicating_charts_minus_one(st->rrdhost); + } +#ifdef NETDATA_LOG_REPLICATION_REQUESTS + else + internal_error(true, "REPLAY ERROR: 'host:%s/chart:%s' got a " PLUGINSD_KEYWORD_REPLAY_END " with enable_streaming = true, but there is no replication in progress for this chart.", + rrdhost_hostname(host), rrdset_id(st)); +#endif + + pluginsd_clear_scope_chart(parser, PLUGINSD_KEYWORD_REPLAY_END); + + host->rrdpush_receiver_replication_percent = 100.0; + worker_set_metric(WORKER_RECEIVER_JOB_REPLICATION_COMPLETION, host->rrdpush_receiver_replication_percent); + + return PARSER_RC_OK; + } + + pluginsd_clear_scope_chart(parser, PLUGINSD_KEYWORD_REPLAY_END); + + rrdcontext_updated_retention_rrdset(st); + + bool ok = replicate_chart_request(send_to_plugin, parser, host, st, + first_entry_child, last_entry_child, child_world_time, + first_entry_requested, last_entry_requested); + return ok ? PARSER_RC_OK : PARSER_RC_ERROR; +} + +static inline PARSER_RC pluginsd_begin_v2(char **words, size_t num_words, PARSER *parser) { + timing_init(); + + int idx = 1; + ssize_t slot = pluginsd_parse_rrd_slot(words, num_words); + if(slot >= 0) idx++; + + char *id = get_word(words, num_words, idx++); + char *update_every_str = get_word(words, num_words, idx++); + char *end_time_str = get_word(words, num_words, idx++); + char *wall_clock_time_str = get_word(words, num_words, idx++); + + if(unlikely(!id || !update_every_str || !end_time_str || !wall_clock_time_str)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_BEGIN_V2, "missing parameters"); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_BEGIN_V2); + if(unlikely(!host)) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + timing_step(TIMING_STEP_BEGIN2_PREPARE); + + RRDSET *st = pluginsd_rrdset_cache_get_from_slot(parser, host, id, slot, PLUGINSD_KEYWORD_BEGIN_V2); + + if(unlikely(!st)) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + if(!pluginsd_set_scope_chart(parser, st, PLUGINSD_KEYWORD_BEGIN_V2)) + return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE))) + rrdset_isnot_obsolete___safe_from_collector_thread(st); + + timing_step(TIMING_STEP_BEGIN2_FIND_CHART); + + // ------------------------------------------------------------------------ + // parse the parameters + + time_t update_every = (time_t) str2ull_encoded(update_every_str); + time_t end_time = (time_t) str2ull_encoded(end_time_str); + + time_t wall_clock_time; + if(likely(*wall_clock_time_str == '#')) + wall_clock_time = end_time; + else + wall_clock_time = (time_t) str2ull_encoded(wall_clock_time_str); + + if (unlikely(update_every != st->update_every)) + rrdset_set_update_every_s(st, update_every); + + timing_step(TIMING_STEP_BEGIN2_PARSE); + + // ------------------------------------------------------------------------ + // prepare our state + + pluginsd_lock_rrdset_data_collection(parser); + + parser->user.v2.update_every = update_every; + parser->user.v2.end_time = end_time; + parser->user.v2.wall_clock_time = wall_clock_time; + parser->user.v2.ml_locked = ml_chart_update_begin(st); + + timing_step(TIMING_STEP_BEGIN2_ML); + + // ------------------------------------------------------------------------ + // propagate it forward in v2 + + if(!parser->user.v2.stream_buffer.wb && rrdhost_has_rrdpush_sender_enabled(st->rrdhost)) + parser->user.v2.stream_buffer = rrdset_push_metric_initialize(parser->user.st, wall_clock_time); + + if(parser->user.v2.stream_buffer.v2 && parser->user.v2.stream_buffer.wb) { + // check receiver capabilities + bool can_copy = stream_has_capability(&parser->user, STREAM_CAP_IEEE754) == stream_has_capability(&parser->user.v2.stream_buffer, STREAM_CAP_IEEE754); + + // check sender capabilities + bool with_slots = stream_has_capability(&parser->user.v2.stream_buffer, STREAM_CAP_SLOTS) ? true : false; + NUMBER_ENCODING integer_encoding = stream_has_capability(&parser->user.v2.stream_buffer, STREAM_CAP_IEEE754) ? NUMBER_ENCODING_BASE64 : NUMBER_ENCODING_HEX; + + BUFFER *wb = parser->user.v2.stream_buffer.wb; + + buffer_need_bytes(wb, 1024); + + if(unlikely(parser->user.v2.stream_buffer.begin_v2_added)) + buffer_fast_strcat(wb, PLUGINSD_KEYWORD_END_V2 "\n", sizeof(PLUGINSD_KEYWORD_END_V2) - 1 + 1); + + buffer_fast_strcat(wb, PLUGINSD_KEYWORD_BEGIN_V2, sizeof(PLUGINSD_KEYWORD_BEGIN_V2) - 1); + + if(with_slots) { + buffer_fast_strcat(wb, " "PLUGINSD_KEYWORD_SLOT":", sizeof(PLUGINSD_KEYWORD_SLOT) - 1 + 2); + buffer_print_uint64_encoded(wb, integer_encoding, st->rrdpush.sender.chart_slot); + } + + buffer_fast_strcat(wb, " '", 2); + buffer_fast_strcat(wb, rrdset_id(st), string_strlen(st->id)); + buffer_fast_strcat(wb, "' ", 2); + + if(can_copy) + buffer_strcat(wb, update_every_str); + else + buffer_print_uint64_encoded(wb, integer_encoding, update_every); + + buffer_fast_strcat(wb, " ", 1); + + if(can_copy) + buffer_strcat(wb, end_time_str); + else + buffer_print_uint64_encoded(wb, integer_encoding, end_time); + + buffer_fast_strcat(wb, " ", 1); + + if(can_copy) + buffer_strcat(wb, wall_clock_time_str); + else + buffer_print_uint64_encoded(wb, integer_encoding, wall_clock_time); + + buffer_fast_strcat(wb, "\n", 1); + + parser->user.v2.stream_buffer.last_point_end_time_s = end_time; + parser->user.v2.stream_buffer.begin_v2_added = true; + } + + timing_step(TIMING_STEP_BEGIN2_PROPAGATE); + + // ------------------------------------------------------------------------ + // store it + + st->last_collected_time.tv_sec = end_time; + st->last_collected_time.tv_usec = 0; + st->last_updated.tv_sec = end_time; + st->last_updated.tv_usec = 0; + st->counter++; + st->counter_done++; + + // these are only needed for db mode RAM, SAVE, MAP, ALLOC + st->db.current_entry++; + if(st->db.current_entry >= st->db.entries) + st->db.current_entry -= st->db.entries; + + timing_step(TIMING_STEP_BEGIN2_STORE); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_set_v2(char **words, size_t num_words, PARSER *parser) { + timing_init(); + + int idx = 1; + ssize_t slot = pluginsd_parse_rrd_slot(words, num_words); + if(slot >= 0) idx++; + + char *dimension = get_word(words, num_words, idx++); + char *collected_str = get_word(words, num_words, idx++); + char *value_str = get_word(words, num_words, idx++); + char *flags_str = get_word(words, num_words, idx++); + + if(unlikely(!dimension || !collected_str || !value_str || !flags_str)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_SET_V2, "missing parameters"); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_SET_V2); + if(unlikely(!host)) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_SET_V2, PLUGINSD_KEYWORD_BEGIN_V2); + if(unlikely(!st)) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + timing_step(TIMING_STEP_SET2_PREPARE); + + RRDDIM *rd = pluginsd_acquire_dimension(host, st, dimension, slot, PLUGINSD_KEYWORD_SET_V2); + if(unlikely(!rd)) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + st->pluginsd.set = true; + + if(unlikely(rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE | RRDDIM_FLAG_ARCHIVED))) + rrddim_isnot_obsolete___safe_from_collector_thread(st, rd); + + timing_step(TIMING_STEP_SET2_LOOKUP_DIMENSION); + + // ------------------------------------------------------------------------ + // parse the parameters + + collected_number collected_value = (collected_number) str2ll_encoded(collected_str); + + NETDATA_DOUBLE value; + if(*value_str == '#') + value = (NETDATA_DOUBLE)collected_value; + else + value = str2ndd_encoded(value_str, NULL); + + SN_FLAGS flags = pluginsd_parse_storage_number_flags(flags_str); + + timing_step(TIMING_STEP_SET2_PARSE); + + // ------------------------------------------------------------------------ + // check value and ML + + if (unlikely(!netdata_double_isnumber(value) || (flags == SN_EMPTY_SLOT))) { + value = NAN; + flags = SN_EMPTY_SLOT; + + if(parser->user.v2.ml_locked) + ml_dimension_is_anomalous(rd, parser->user.v2.end_time, 0, false); + } + else if(parser->user.v2.ml_locked) { + if (ml_dimension_is_anomalous(rd, parser->user.v2.end_time, value, true)) { + // clear anomaly bit: 0 -> is anomalous, 1 -> not anomalous + flags &= ~((storage_number) SN_FLAG_NOT_ANOMALOUS); + } + else + flags |= SN_FLAG_NOT_ANOMALOUS; + } + + timing_step(TIMING_STEP_SET2_ML); + + // ------------------------------------------------------------------------ + // propagate it forward in v2 + + if(parser->user.v2.stream_buffer.v2 && parser->user.v2.stream_buffer.begin_v2_added && parser->user.v2.stream_buffer.wb) { + // check if receiver and sender have the same number parsing capabilities + bool can_copy = stream_has_capability(&parser->user, STREAM_CAP_IEEE754) == stream_has_capability(&parser->user.v2.stream_buffer, STREAM_CAP_IEEE754); + + // check the sender capabilities + bool with_slots = stream_has_capability(&parser->user.v2.stream_buffer, STREAM_CAP_SLOTS) ? true : false; + NUMBER_ENCODING integer_encoding = stream_has_capability(&parser->user.v2.stream_buffer, STREAM_CAP_IEEE754) ? NUMBER_ENCODING_BASE64 : NUMBER_ENCODING_HEX; + NUMBER_ENCODING doubles_encoding = stream_has_capability(&parser->user.v2.stream_buffer, STREAM_CAP_IEEE754) ? NUMBER_ENCODING_BASE64 : NUMBER_ENCODING_DECIMAL; + + BUFFER *wb = parser->user.v2.stream_buffer.wb; + buffer_need_bytes(wb, 1024); + buffer_fast_strcat(wb, PLUGINSD_KEYWORD_SET_V2, sizeof(PLUGINSD_KEYWORD_SET_V2) - 1); + + if(with_slots) { + buffer_fast_strcat(wb, " "PLUGINSD_KEYWORD_SLOT":", sizeof(PLUGINSD_KEYWORD_SLOT) - 1 + 2); + buffer_print_uint64_encoded(wb, integer_encoding, rd->rrdpush.sender.dim_slot); + } + + buffer_fast_strcat(wb, " '", 2); + buffer_fast_strcat(wb, rrddim_id(rd), string_strlen(rd->id)); + buffer_fast_strcat(wb, "' ", 2); + if(can_copy) + buffer_strcat(wb, collected_str); + else + buffer_print_int64_encoded(wb, integer_encoding, collected_value); // original v2 had hex + buffer_fast_strcat(wb, " ", 1); + if(can_copy) + buffer_strcat(wb, value_str); + else + buffer_print_netdata_double_encoded(wb, doubles_encoding, value); // original v2 had decimal + buffer_fast_strcat(wb, " ", 1); + buffer_print_sn_flags(wb, flags, true); + buffer_fast_strcat(wb, "\n", 1); + } + + timing_step(TIMING_STEP_SET2_PROPAGATE); + + // ------------------------------------------------------------------------ + // store it + + rrddim_store_metric(rd, parser->user.v2.end_time * USEC_PER_SEC, value, flags); + rd->collector.last_collected_time.tv_sec = parser->user.v2.end_time; + rd->collector.last_collected_time.tv_usec = 0; + rd->collector.last_collected_value = collected_value; + rd->collector.last_stored_value = value; + rd->collector.last_calculated_value = value; + rd->collector.counter++; + rrddim_set_updated(rd); + + timing_step(TIMING_STEP_SET2_STORE); + + return PARSER_RC_OK; +} + +void pluginsd_cleanup_v2(PARSER *parser) { + // this is called when the thread is stopped while processing + pluginsd_clear_scope_chart(parser, "THREAD CLEANUP"); +} + +static inline PARSER_RC pluginsd_end_v2(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser) { + timing_init(); + + RRDHOST *host = pluginsd_require_scope_host(parser, PLUGINSD_KEYWORD_END_V2); + if(unlikely(!host)) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + RRDSET *st = pluginsd_require_scope_chart(parser, PLUGINSD_KEYWORD_END_V2, PLUGINSD_KEYWORD_BEGIN_V2); + if(unlikely(!st)) return PLUGINSD_DISABLE_PLUGIN(parser, NULL, NULL); + + parser->user.data_collections_count++; + + timing_step(TIMING_STEP_END2_PREPARE); + + // ------------------------------------------------------------------------ + // propagate the whole chart update in v1 + + if(unlikely(!parser->user.v2.stream_buffer.v2 && !parser->user.v2.stream_buffer.begin_v2_added && parser->user.v2.stream_buffer.wb)) + rrdset_push_metrics_v1(&parser->user.v2.stream_buffer, st); + + timing_step(TIMING_STEP_END2_PUSH_V1); + + // ------------------------------------------------------------------------ + // unblock data collection + + pluginsd_unlock_previous_scope_chart(parser, PLUGINSD_KEYWORD_END_V2, false); + rrdcontext_collected_rrdset(st); + store_metric_collection_completed(); + + timing_step(TIMING_STEP_END2_RRDSET); + + // ------------------------------------------------------------------------ + // propagate it forward + + rrdset_push_metrics_finished(&parser->user.v2.stream_buffer, st); + + timing_step(TIMING_STEP_END2_PROPAGATE); + + // ------------------------------------------------------------------------ + // cleanup RRDSET / RRDDIM + + if(likely(st->pluginsd.dims_with_slots)) { + for(size_t i = 0; i < st->pluginsd.size ;i++) { + RRDDIM *rd = st->pluginsd.prd_array[i].rd; + + if(!rd) + continue; + + rd->collector.calculated_value = 0; + rd->collector.collected_value = 0; + rrddim_clear_updated(rd); + } + } + else { + RRDDIM *rd; + rrddim_foreach_read(rd, st){ + rd->collector.calculated_value = 0; + rd->collector.collected_value = 0; + rrddim_clear_updated(rd); + } + rrddim_foreach_done(rd); + } + + // ------------------------------------------------------------------------ + // reset state + + parser->user.v2 = (struct parser_user_object_v2){ 0 }; + + timing_step(TIMING_STEP_END2_STORE); + timing_report(); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_exit(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser __maybe_unused) { + netdata_log_info("PLUGINSD: plugin called EXIT."); + return PARSER_RC_STOP; +} + +struct mutex_cond { + pthread_mutex_t lock; + pthread_cond_t cond; + int rc; +}; + +static void virt_fnc_got_data_cb(BUFFER *wb __maybe_unused, int code, void *callback_data) +{ + struct mutex_cond *ctx = callback_data; + pthread_mutex_lock(&ctx->lock); + ctx->rc = code; + pthread_cond_broadcast(&ctx->cond); + pthread_mutex_unlock(&ctx->lock); +} + +#define VIRT_FNC_TIMEOUT 1 +#define VIRT_FNC_BUF_SIZE (4096) +void call_virtual_function_async(BUFFER *wb, RRDHOST *host, const char *name, const char *payload, rrd_function_result_callback_t callback, void *callback_data) { + PARSER *parser = NULL; + + //TODO simplify (as we really need only first parameter to get plugin name maybe we can avoid parsing all) + char *words[PLUGINSD_MAX_WORDS]; + char *function_with_params = strdupz(name); + size_t num_words = quoted_strings_splitter(function_with_params, words, PLUGINSD_MAX_WORDS, isspace_map_pluginsd); + + if (num_words < 2) { + netdata_log_error("PLUGINSD: virtual function name is empty."); + freez(function_with_params); + return; + } + + const DICTIONARY_ITEM *cpi = dictionary_get_and_acquire_item(host->configurable_plugins, get_word(words, num_words, 1)); + if (unlikely(cpi == NULL)) { + netdata_log_error("PLUGINSD: virtual function plugin '%s' not found.", name); + freez(function_with_params); + return; + } + struct configurable_plugin *cp = dictionary_acquired_item_value(cpi); + parser = (PARSER *)cp->cb_usr_ctx; + + BUFFER *function_out = buffer_create(VIRT_FNC_BUF_SIZE, NULL); + // if we are forwarding this to a plugin (as opposed to streaming/child) we have to remove the first parameter (plugin_name) + buffer_strcat(function_out, get_word(words, num_words, 0)); + for (size_t i = 1; i < num_words; i++) { + if (i == 1 && SERVING_PLUGINSD(parser)) + continue; + buffer_sprintf(function_out, " %s", get_word(words, num_words, i)); + } + freez(function_with_params); + + usec_t now = now_realtime_usec(); + + struct inflight_function tmp = { + .started_ut = now, + .timeout_ut = now + VIRT_FNC_TIMEOUT + USEC_PER_SEC, + .result_body_wb = wb, + .timeout = VIRT_FNC_TIMEOUT * 10, + .function = string_strdupz(buffer_tostring(function_out)), + .result_cb = callback, + .result_cb_data = callback_data, + .payload = payload != NULL ? strdupz(payload) : NULL, + .virtual = true, + }; + buffer_free(function_out); + + uuid_t uuid; + uuid_generate_time(uuid); + + char key[UUID_STR_LEN]; + uuid_unparse_lower(uuid, key); + + dictionary_write_lock(parser->inflight.functions); + + // if there is any error, our dictionary callbacks will call the caller callback to notify + // the caller about the error - no need for error handling here. + dictionary_set(parser->inflight.functions, key, &tmp, sizeof(struct inflight_function)); + + if(!parser->inflight.smaller_timeout || tmp.timeout_ut < parser->inflight.smaller_timeout) + parser->inflight.smaller_timeout = tmp.timeout_ut; + + // garbage collect stale inflight functions + if(parser->inflight.smaller_timeout < now) + inflight_functions_garbage_collect(parser, now); + + dictionary_write_unlock(parser->inflight.functions); +} + + +dyncfg_config_t call_virtual_function_blocking(PARSER *parser, const char *name, int *rc, const char *payload) { + usec_t now = now_realtime_usec(); + BUFFER *wb = buffer_create(VIRT_FNC_BUF_SIZE, NULL); + + struct mutex_cond cond = { + .lock = PTHREAD_MUTEX_INITIALIZER, + .cond = PTHREAD_COND_INITIALIZER + }; + + struct inflight_function tmp = { + .started_ut = now, + .timeout_ut = now + VIRT_FNC_TIMEOUT + USEC_PER_SEC, + .result_body_wb = wb, + .timeout = VIRT_FNC_TIMEOUT, + .function = string_strdupz(name), + .result_cb = virt_fnc_got_data_cb, + .result_cb_data = &cond, + .payload = payload != NULL ? strdupz(payload) : NULL, + .virtual = true, + }; + + uuid_t uuid; + uuid_generate_time(uuid); + + char key[UUID_STR_LEN]; + uuid_unparse_lower(uuid, key); + + dictionary_write_lock(parser->inflight.functions); + + // if there is any error, our dictionary callbacks will call the caller callback to notify + // the caller about the error - no need for error handling here. + dictionary_set(parser->inflight.functions, key, &tmp, sizeof(struct inflight_function)); + + if(!parser->inflight.smaller_timeout || tmp.timeout_ut < parser->inflight.smaller_timeout) + parser->inflight.smaller_timeout = tmp.timeout_ut; + + // garbage collect stale inflight functions + if(parser->inflight.smaller_timeout < now) + inflight_functions_garbage_collect(parser, now); + + dictionary_write_unlock(parser->inflight.functions); + + struct timespec tp; + clock_gettime(CLOCK_REALTIME, &tp); + tp.tv_sec += (time_t)VIRT_FNC_TIMEOUT; + + pthread_mutex_lock(&cond.lock); + + int ret = pthread_cond_timedwait(&cond.cond, &cond.lock, &tp); + if (ret == ETIMEDOUT) + netdata_log_error("PLUGINSD: DYNCFG virtual function %s timed out", name); + + pthread_mutex_unlock(&cond.lock); + + dyncfg_config_t cfg; + cfg.data = strdupz(buffer_tostring(wb)); + cfg.data_size = buffer_strlen(wb); + + if (rc != NULL) + *rc = cond.rc; + + buffer_free(wb); + return cfg; +} + +#define CVF_MAX_LEN (1024) +static dyncfg_config_t get_plugin_config_cb(void *usr_ctx, const char *plugin_name) +{ + PARSER *parser = usr_ctx; + + if (SERVING_STREAMING(parser)) { + char buf[CVF_MAX_LEN + 1]; + snprintfz(buf, CVF_MAX_LEN, FUNCTION_NAME_GET_PLUGIN_CONFIG " %s", plugin_name); + return call_virtual_function_blocking(parser, buf, NULL, NULL); + } + + return call_virtual_function_blocking(parser, FUNCTION_NAME_GET_PLUGIN_CONFIG, NULL, NULL); +} + +static dyncfg_config_t get_plugin_config_schema_cb(void *usr_ctx, const char *plugin_name) +{ + PARSER *parser = usr_ctx; + + if (SERVING_STREAMING(parser)) { + char buf[CVF_MAX_LEN + 1]; + snprintfz(buf, CVF_MAX_LEN, FUNCTION_NAME_GET_PLUGIN_CONFIG_SCHEMA " %s", plugin_name); + return call_virtual_function_blocking(parser, buf, NULL, NULL); + } + + return call_virtual_function_blocking(parser, "get_plugin_config_schema", NULL, NULL); +} + +static dyncfg_config_t get_module_config_cb(void *usr_ctx, const char *plugin_name, const char *module_name) +{ + PARSER *parser = usr_ctx; + BUFFER *wb = buffer_create(CVF_MAX_LEN, NULL); + + buffer_strcat(wb, FUNCTION_NAME_GET_MODULE_CONFIG); + if (SERVING_STREAMING(parser)) + buffer_sprintf(wb, " %s", plugin_name); + + buffer_sprintf(wb, " %s", module_name); + + dyncfg_config_t ret = call_virtual_function_blocking(parser, buffer_tostring(wb), NULL, NULL); + + buffer_free(wb); + + return ret; +} + +static dyncfg_config_t get_module_config_schema_cb(void *usr_ctx, const char *plugin_name, const char *module_name) +{ + PARSER *parser = usr_ctx; + BUFFER *wb = buffer_create(CVF_MAX_LEN, NULL); + + buffer_strcat(wb, FUNCTION_NAME_GET_MODULE_CONFIG_SCHEMA); + if (SERVING_STREAMING(parser)) + buffer_sprintf(wb, " %s", plugin_name); + + buffer_sprintf(wb, " %s", module_name); + + dyncfg_config_t ret = call_virtual_function_blocking(parser, buffer_tostring(wb), NULL, NULL); + + buffer_free(wb); + + return ret; +} + +static dyncfg_config_t get_job_config_schema_cb(void *usr_ctx, const char *plugin_name, const char *module_name) +{ + PARSER *parser = usr_ctx; + BUFFER *wb = buffer_create(CVF_MAX_LEN, NULL); + + buffer_strcat(wb, FUNCTION_NAME_GET_JOB_CONFIG_SCHEMA); + + if (SERVING_STREAMING(parser)) + buffer_sprintf(wb, " %s", plugin_name); + + buffer_sprintf(wb, " %s", module_name); + + dyncfg_config_t ret = call_virtual_function_blocking(parser, buffer_tostring(wb), NULL, NULL); + + buffer_free(wb); + + return ret; +} + +static dyncfg_config_t get_job_config_cb(void *usr_ctx, const char *plugin_name, const char *module_name, const char* job_name) +{ + PARSER *parser = usr_ctx; + BUFFER *wb = buffer_create(CVF_MAX_LEN, NULL); + + buffer_strcat(wb, FUNCTION_NAME_GET_JOB_CONFIG); + + if (SERVING_STREAMING(parser)) + buffer_sprintf(wb, " %s", plugin_name); + + buffer_sprintf(wb, " %s %s", module_name, job_name); + + dyncfg_config_t ret = call_virtual_function_blocking(parser, buffer_tostring(wb), NULL, NULL); + + buffer_free(wb); + + return ret; +} + +enum set_config_result set_plugin_config_cb(void *usr_ctx, const char *plugin_name, dyncfg_config_t *cfg) +{ + PARSER *parser = usr_ctx; + BUFFER *wb = buffer_create(CVF_MAX_LEN, NULL); + + buffer_strcat(wb, FUNCTION_NAME_SET_PLUGIN_CONFIG); + + if (SERVING_STREAMING(parser)) + buffer_sprintf(wb, " %s", plugin_name); + + int rc; + call_virtual_function_blocking(parser, buffer_tostring(wb), &rc, cfg->data); + + buffer_free(wb); + if(rc != DYNCFG_VFNC_RET_CFG_ACCEPTED) + return SET_CONFIG_REJECTED; + return SET_CONFIG_ACCEPTED; +} + +enum set_config_result set_module_config_cb(void *usr_ctx, const char *plugin_name, const char *module_name, dyncfg_config_t *cfg) +{ + PARSER *parser = usr_ctx; + BUFFER *wb = buffer_create(CVF_MAX_LEN, NULL); + + buffer_strcat(wb, FUNCTION_NAME_SET_MODULE_CONFIG); + + if (SERVING_STREAMING(parser)) + buffer_sprintf(wb, " %s", plugin_name); + + buffer_sprintf(wb, " %s", module_name); + + int rc; + call_virtual_function_blocking(parser, buffer_tostring(wb), &rc, cfg->data); + + buffer_free(wb); + + if(rc != DYNCFG_VFNC_RET_CFG_ACCEPTED) + return SET_CONFIG_REJECTED; + return SET_CONFIG_ACCEPTED; +} + +enum set_config_result set_job_config_cb(void *usr_ctx, const char *plugin_name, const char *module_name, const char *job_name, dyncfg_config_t *cfg) +{ + PARSER *parser = usr_ctx; + BUFFER *wb = buffer_create(CVF_MAX_LEN, NULL); + + buffer_strcat(wb, FUNCTION_NAME_SET_JOB_CONFIG); + + if (SERVING_STREAMING(parser)) + buffer_sprintf(wb, " %s", plugin_name); + + buffer_sprintf(wb, " %s %s", module_name, job_name); + + int rc; + call_virtual_function_blocking(parser, buffer_tostring(wb), &rc, cfg->data); + + buffer_free(wb); + + if(rc != DYNCFG_VFNC_RET_CFG_ACCEPTED) + return SET_CONFIG_REJECTED; + return SET_CONFIG_ACCEPTED; +} + +enum set_config_result delete_job_cb(void *usr_ctx, const char *plugin_name ,const char *module_name, const char *job_name) +{ + PARSER *parser = usr_ctx; + BUFFER *wb = buffer_create(CVF_MAX_LEN, NULL); + + buffer_strcat(wb, FUNCTION_NAME_DELETE_JOB); + + if (SERVING_STREAMING(parser)) + buffer_sprintf(wb, " %s", plugin_name); + + buffer_sprintf(wb, " %s %s", module_name, job_name); + + int rc; + call_virtual_function_blocking(parser, buffer_tostring(wb), &rc, NULL); + + buffer_free(wb); + + if(rc != DYNCFG_VFNC_RET_CFG_ACCEPTED) + return SET_CONFIG_REJECTED; + return SET_CONFIG_ACCEPTED; +} + + +static inline PARSER_RC pluginsd_register_plugin(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser __maybe_unused) { + netdata_log_info("PLUGINSD: DYNCFG_ENABLE"); + + if (unlikely (num_words != 2)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_ENABLE, "missing name parameter"); + + struct configurable_plugin *cfg = callocz(1, sizeof(struct configurable_plugin)); + + cfg->name = strdupz(words[1]); + cfg->set_config_cb = set_plugin_config_cb; + cfg->get_config_cb = get_plugin_config_cb; + cfg->get_config_schema_cb = get_plugin_config_schema_cb; + cfg->cb_usr_ctx = parser; + + const DICTIONARY_ITEM *di = register_plugin(parser->user.host->configurable_plugins, cfg, SERVING_PLUGINSD(parser)); + if (unlikely(di == NULL)) { + freez(cfg->name); + freez(cfg); + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_ENABLE, "error registering plugin"); + } + + if (SERVING_PLUGINSD(parser)) { + // this is optimization for pluginsd to avoid extra dictionary lookup + // as we know which plugin is comunicating with us + parser->user.cd->cfg_dict_item = di; + parser->user.cd->configuration = cfg; + } else { + // register_plugin keeps the item acquired, so we need to release it + dictionary_acquired_item_release(parser->user.host->configurable_plugins, di); + } + + rrdpush_send_dyncfg_enable(parser->user.host, cfg->name); + + return PARSER_RC_OK; +} + +#define LOG_MSG_SIZE (1024) +#define MODULE_NAME_IDX (SERVING_PLUGINSD(parser) ? 1 : 2) +#define MODULE_TYPE_IDX (SERVING_PLUGINSD(parser) ? 2 : 3) +static inline PARSER_RC pluginsd_register_module(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser __maybe_unused) { + netdata_log_info("PLUGINSD: DYNCFG_REG_MODULE"); + + size_t expected_num_words = SERVING_PLUGINSD(parser) ? 3 : 4; + + if (unlikely(num_words != expected_num_words)) { + char log[LOG_MSG_SIZE + 1]; + snprintfz(log, LOG_MSG_SIZE, "expected %zu (got %zu) parameters: %smodule_name module_type", expected_num_words - 1, num_words - 1, SERVING_PLUGINSD(parser) ? "" : "plugin_name "); + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_REGISTER_MODULE, log); + } + + struct configurable_plugin *plug_cfg; + const DICTIONARY_ITEM *di = NULL; + if (SERVING_PLUGINSD(parser)) { + plug_cfg = parser->user.cd->configuration; + if (unlikely(plug_cfg == NULL)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_REGISTER_MODULE, "you have to enable dynamic configuration first using " PLUGINSD_KEYWORD_DYNCFG_ENABLE); + } else { + di = dictionary_get_and_acquire_item(parser->user.host->configurable_plugins, words[1]); + if (unlikely(di == NULL)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_REGISTER_MODULE, "plugin not found"); + + plug_cfg = (struct configurable_plugin *)dictionary_acquired_item_value(di); + } + + struct module *mod = callocz(1, sizeof(struct module)); + + mod->type = str2_module_type(words[MODULE_TYPE_IDX]); + if (unlikely(mod->type == MOD_TYPE_UNKNOWN)) { + freez(mod); + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_REGISTER_MODULE, "unknown module type (allowed: job_array, single)"); + } + + mod->name = strdupz(words[MODULE_NAME_IDX]); + + mod->set_config_cb = set_module_config_cb; + mod->get_config_cb = get_module_config_cb; + mod->get_config_schema_cb = get_module_config_schema_cb; + mod->config_cb_usr_ctx = parser; + + mod->get_job_config_cb = get_job_config_cb; + mod->get_job_config_schema_cb = get_job_config_schema_cb; + mod->set_job_config_cb = set_job_config_cb; + mod->delete_job_cb = delete_job_cb; + mod->job_config_cb_usr_ctx = parser; + + register_module(parser->user.host->configurable_plugins, plug_cfg, mod, SERVING_PLUGINSD(parser)); + + if (di != NULL) + dictionary_acquired_item_release(parser->user.host->configurable_plugins, di); + + rrdpush_send_dyncfg_reg_module(parser->user.host, plug_cfg->name, mod->name, mod->type); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_register_job_common(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser __maybe_unused, const char *plugin_name) { + const char *module_name = words[0]; + const char *job_name = words[1]; + const char *job_type_str = words[2]; + const char *flags_str = words[3]; + + long f = str2l(flags_str); + + if (f < 0) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_REGISTER_JOB, "invalid flags received"); + + dyncfg_job_flg_t flags = f; + + if (SERVING_PLUGINSD(parser)) + flags |= JOB_FLG_PLUGIN_PUSHED; + else + flags |= JOB_FLG_STREAMING_PUSHED; + + enum job_type job_type = dyncfg_str2job_type(job_type_str); + if (job_type == JOB_TYPE_UNKNOWN) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_REGISTER_JOB, "unknown job type"); + + if (SERVING_PLUGINSD(parser) && job_type == JOB_TYPE_USER) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_REGISTER_JOB, "plugins cannot push jobs of type \"user\" (this is allowed only in streaming)"); + + if (register_job(parser->user.host->configurable_plugins, plugin_name, module_name, job_name, job_type, flags, 0)) // ignore existing is off as this is explicitly called register job + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_REGISTER_JOB, "error registering job"); + + rrdpush_send_dyncfg_reg_job(parser->user.host, plugin_name, module_name, job_name, job_type, flags); + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_register_job(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser __maybe_unused) { + size_t expected_num_words = SERVING_PLUGINSD(parser) ? 5 : 6; + + if (unlikely(num_words != expected_num_words)) { + char log[LOG_MSG_SIZE + 1]; + snprintfz(log, LOG_MSG_SIZE, "expected %zu (got %zu) parameters: %smodule_name job_name job_type", expected_num_words - 1, num_words - 1, SERVING_PLUGINSD(parser) ? "" : "plugin_name "); + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_REGISTER_JOB, log); + } + + if (SERVING_PLUGINSD(parser)) { + return pluginsd_register_job_common(&words[1], num_words - 1, parser, parser->user.cd->configuration->name); + } + return pluginsd_register_job_common(&words[2], num_words - 2, parser, words[1]); +} + +static inline PARSER_RC pluginsd_dyncfg_reset(char **words __maybe_unused, size_t num_words __maybe_unused, PARSER *parser __maybe_unused) { + if (unlikely(num_words != (SERVING_PLUGINSD(parser) ? 1 : 2))) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_RESET, SERVING_PLUGINSD(parser) ? "expected 0 parameters" : "expected 1 parameter: plugin_name"); + + if (SERVING_PLUGINSD(parser)) { + unregister_plugin(parser->user.host->configurable_plugins, parser->user.cd->cfg_dict_item); + rrdpush_send_dyncfg_reset(parser->user.host, parser->user.cd->configuration->name); + parser->user.cd->configuration = NULL; + } else { + const DICTIONARY_ITEM *di = dictionary_get_and_acquire_item(parser->user.host->configurable_plugins, words[1]); + if (unlikely(di == NULL)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DYNCFG_RESET, "plugin not found"); + unregister_plugin(parser->user.host->configurable_plugins, di); + rrdpush_send_dyncfg_reset(parser->user.host, words[1]); + } + + return PARSER_RC_OK; +} + +static inline PARSER_RC pluginsd_job_status_common(char **words, size_t num_words, PARSER *parser, const char *plugin_name) { + int state = str2i(words[3]); + + enum job_status status = str2job_state(words[2]); + if (unlikely(SERVING_PLUGINSD(parser) && status == JOB_STATUS_UNKNOWN)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_REPORT_JOB_STATUS, "unknown job status"); + + char *message = NULL; + if (num_words == 5 && strlen(words[4]) > 0) + message = words[4]; + + const DICTIONARY_ITEM *plugin_item; + DICTIONARY *job_dict; + const DICTIONARY_ITEM *job_item = report_job_status_acq_lock(parser->user.host->configurable_plugins, &plugin_item, &job_dict, plugin_name, words[0], words[1], status, state, message); + + if (job_item != NULL) { + struct job *job = dictionary_acquired_item_value(job_item); + rrdpush_send_job_status_update(parser->user.host, plugin_name, words[0], job); + + pthread_mutex_unlock(&job->lock); + dictionary_acquired_item_release(job_dict, job_item); + dictionary_acquired_item_release(parser->user.host->configurable_plugins, plugin_item); + } + + return PARSER_RC_OK; +} + +// job_status [plugin_name if streaming] <module_name> <job_name> <status_code> <state> [message] +static PARSER_RC pluginsd_job_status(char **words, size_t num_words, PARSER *parser) { + if (SERVING_PLUGINSD(parser)) { + if (unlikely(num_words != 5 && num_words != 6)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_REPORT_JOB_STATUS, "expected 4 or 5 parameters: module_name, job_name, status_code, state, [optional: message]"); + } else { + if (unlikely(num_words != 6 && num_words != 7)) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_REPORT_JOB_STATUS, "expected 5 or 6 parameters: plugin_name, module_name, job_name, status_code, state, [optional: message]"); + } + + if (SERVING_PLUGINSD(parser)) { + return pluginsd_job_status_common(&words[1], num_words - 1, parser, parser->user.cd->configuration->name); + } + return pluginsd_job_status_common(&words[2], num_words - 2, parser, words[1]); +} + +static PARSER_RC pluginsd_delete_job(char **words, size_t num_words, PARSER *parser) { + // this can confuse a bit but there is a diference between KEYWORD_DELETE_JOB and actual delete_job function + // they are of opossite direction + if (num_words != 4) + return PLUGINSD_DISABLE_PLUGIN(parser, PLUGINSD_KEYWORD_DELETE_JOB, "expected 2 parameters: plugin_name, module_name, job_name"); + + const char *plugin_name = get_word(words, num_words, 1); + const char *module_name = get_word(words, num_words, 2); + const char *job_name = get_word(words, num_words, 3); + + if (SERVING_STREAMING(parser)) + delete_job_pname(parser->user.host->configurable_plugins, plugin_name, module_name, job_name); + + // forward to parent if any + rrdpush_send_job_deleted(parser->user.host, plugin_name, module_name, job_name); + return PARSER_RC_OK; +} + +static inline PARSER_RC streaming_claimed_id(char **words, size_t num_words, PARSER *parser) +{ + const char *host_uuid_str = get_word(words, num_words, 1); + const char *claim_id_str = get_word(words, num_words, 2); + + if (!host_uuid_str || !claim_id_str) { + netdata_log_error("Command CLAIMED_ID came malformed, uuid = '%s', claim_id = '%s'", + host_uuid_str ? host_uuid_str : "[unset]", + claim_id_str ? claim_id_str : "[unset]"); + return PARSER_RC_ERROR; + } + + uuid_t uuid; + RRDHOST *host = parser->user.host; + + // We don't need the parsed UUID + // just do it to check the format + if(uuid_parse(host_uuid_str, uuid)) { + netdata_log_error("1st parameter (host GUID) to CLAIMED_ID command is not valid GUID. Received: \"%s\".", host_uuid_str); + return PARSER_RC_ERROR; + } + if(uuid_parse(claim_id_str, uuid) && strcmp(claim_id_str, "NULL") != 0) { + netdata_log_error("2nd parameter (Claim ID) to CLAIMED_ID command is not valid GUID. Received: \"%s\".", claim_id_str); + return PARSER_RC_ERROR; + } + + if(strcmp(host_uuid_str, host->machine_guid) != 0) { + netdata_log_error("Claim ID is for host \"%s\" but it came over connection for \"%s\"", host_uuid_str, host->machine_guid); + return PARSER_RC_OK; //the message is OK problem must be somewhere else + } + + rrdhost_aclk_state_lock(host); + + if (host->aclk_state.claimed_id) + freez(host->aclk_state.claimed_id); + + host->aclk_state.claimed_id = strcmp(claim_id_str, "NULL") ? strdupz(claim_id_str) : NULL; + + rrdhost_aclk_state_unlock(host); + + rrdhost_flag_set(host, RRDHOST_FLAG_METADATA_CLAIMID |RRDHOST_FLAG_METADATA_UPDATE); + + rrdpush_send_claimed_id(host); + + return PARSER_RC_OK; +} + +// ---------------------------------------------------------------------------- + +void pluginsd_process_thread_cleanup(void *ptr) { + PARSER *parser = (PARSER *)ptr; + + pluginsd_cleanup_v2(parser); + pluginsd_host_define_cleanup(parser); + + rrd_collector_finished(); + +#ifdef NETDATA_LOG_STREAM_RECEIVE + if(parser->user.stream_log_fp) { + fclose(parser->user.stream_log_fp); + parser->user.stream_log_fp = NULL; + } +#endif + + parser_destroy(parser); +} + +bool parser_reconstruct_node(BUFFER *wb, void *ptr) { + PARSER *parser = ptr; + if(!parser || !parser->user.host) + return false; + + buffer_strcat(wb, rrdhost_hostname(parser->user.host)); + return true; +} + +bool parser_reconstruct_instance(BUFFER *wb, void *ptr) { + PARSER *parser = ptr; + if(!parser || !parser->user.st) + return false; + + buffer_strcat(wb, rrdset_name(parser->user.st)); + return true; +} + +bool parser_reconstruct_context(BUFFER *wb, void *ptr) { + PARSER *parser = ptr; + if(!parser || !parser->user.st) + return false; + + buffer_strcat(wb, string2str(parser->user.st->context)); + return true; +} + +inline size_t pluginsd_process(RRDHOST *host, struct plugind *cd, FILE *fp_plugin_input, FILE *fp_plugin_output, int trust_durations) +{ + int enabled = cd->unsafe.enabled; + + if (!fp_plugin_input || !fp_plugin_output || !enabled) { + cd->unsafe.enabled = 0; + return 0; + } + + if (unlikely(fileno(fp_plugin_input) == -1)) { + netdata_log_error("input file descriptor given is not a valid stream"); + cd->serial_failures++; + return 0; + } + + if (unlikely(fileno(fp_plugin_output) == -1)) { + netdata_log_error("output file descriptor given is not a valid stream"); + cd->serial_failures++; + return 0; + } + + clearerr(fp_plugin_input); + clearerr(fp_plugin_output); + + PARSER *parser; + { + PARSER_USER_OBJECT user = { + .enabled = cd->unsafe.enabled, + .host = host, + .cd = cd, + .trust_durations = trust_durations + }; + + // fp_plugin_output = our input; fp_plugin_input = our output + parser = parser_init(&user, fp_plugin_output, fp_plugin_input, -1, PARSER_INPUT_SPLIT, NULL); + } + + pluginsd_keywords_init(parser, PARSER_INIT_PLUGINSD); + + rrd_collector_started(); + + size_t count = 0; + + // this keeps the parser with its current value + // so, parser needs to be allocated before pushing it + netdata_thread_cleanup_push(pluginsd_process_thread_cleanup, parser); + + { + ND_LOG_STACK lgs[] = { + ND_LOG_FIELD_CB(NDF_REQUEST, line_splitter_reconstruct_line, &parser->line), + ND_LOG_FIELD_CB(NDF_NIDL_NODE, parser_reconstruct_node, parser), + ND_LOG_FIELD_CB(NDF_NIDL_INSTANCE, parser_reconstruct_instance, parser), + ND_LOG_FIELD_CB(NDF_NIDL_CONTEXT, parser_reconstruct_context, parser), + ND_LOG_FIELD_END(), + }; + ND_LOG_STACK_PUSH(lgs); + + buffered_reader_init(&parser->reader); + BUFFER *buffer = buffer_create(sizeof(parser->reader.read_buffer) + 2, NULL); + while(likely(service_running(SERVICE_COLLECTORS))) { + + if(unlikely(!buffered_reader_next_line(&parser->reader, buffer))) { + buffered_reader_ret_t ret = buffered_reader_read_timeout( + &parser->reader, + fileno((FILE *) parser->fp_input), + 2 * 60 * MSEC_PER_SEC, true + ); + + if(unlikely(ret != BUFFERED_READER_READ_OK)) + break; + + continue; + } + + if(unlikely(parser_action(parser, buffer->buffer))) + break; + + buffer->len = 0; + buffer->buffer[0] = '\0'; + } + buffer_free(buffer); + + cd->unsafe.enabled = parser->user.enabled; + count = parser->user.data_collections_count; + + if(likely(count)) { + cd->successful_collections += count; + cd->serial_failures = 0; + } + else + cd->serial_failures++; + } + + // free parser with the pop function + netdata_thread_cleanup_pop(1); + + return count; +} + +void pluginsd_keywords_init(PARSER *parser, PARSER_REPERTOIRE repertoire) { + parser_init_repertoire(parser, repertoire); + + if (repertoire & (PARSER_INIT_PLUGINSD | PARSER_INIT_STREAMING)) + inflight_functions_init(parser); +} + +PARSER *parser_init(struct parser_user_object *user, FILE *fp_input, FILE *fp_output, int fd, + PARSER_INPUT_TYPE flags, void *ssl __maybe_unused) { + PARSER *parser; + + parser = callocz(1, sizeof(*parser)); + if(user) + parser->user = *user; + parser->fd = fd; + parser->fp_input = fp_input; + parser->fp_output = fp_output; +#ifdef ENABLE_HTTPS + parser->ssl_output = ssl; +#endif + parser->flags = flags; + + spinlock_init(&parser->writer.spinlock); + return parser; +} + +PARSER_RC parser_execute(PARSER *parser, PARSER_KEYWORD *keyword, char **words, size_t num_words) { + switch(keyword->id) { + case 1: + return pluginsd_set_v2(words, num_words, parser); + + case 2: + return pluginsd_begin_v2(words, num_words, parser); + + case 3: + return pluginsd_end_v2(words, num_words, parser); + + case 11: + return pluginsd_set(words, num_words, parser); + + case 12: + return pluginsd_begin(words, num_words, parser); + + case 13: + return pluginsd_end(words, num_words, parser); + + case 21: + return pluginsd_replay_set(words, num_words, parser); + + case 22: + return pluginsd_replay_begin(words, num_words, parser); + + case 23: + return pluginsd_replay_rrddim_collection_state(words, num_words, parser); + + case 24: + return pluginsd_replay_rrdset_collection_state(words, num_words, parser); + + case 25: + return pluginsd_replay_end(words, num_words, parser); + + case 31: + return pluginsd_dimension(words, num_words, parser); + + case 32: + return pluginsd_chart(words, num_words, parser); + + case 33: + return pluginsd_chart_definition_end(words, num_words, parser); + + case 34: + return pluginsd_clabel(words, num_words, parser); + + case 35: + return pluginsd_clabel_commit(words, num_words, parser); + + case 41: + return pluginsd_function(words, num_words, parser); + + case 42: + return pluginsd_function_result_begin(words, num_words, parser); + + case 51: + return pluginsd_label(words, num_words, parser); + + case 52: + return pluginsd_overwrite(words, num_words, parser); + + case 53: + return pluginsd_variable(words, num_words, parser); + + case 61: + return streaming_claimed_id(words, num_words, parser); + + case 71: + return pluginsd_host(words, num_words, parser); + + case 72: + return pluginsd_host_define(words, num_words, parser); + + case 73: + return pluginsd_host_define_end(words, num_words, parser); + + case 74: + return pluginsd_host_labels(words, num_words, parser); + + case 97: + return pluginsd_flush(words, num_words, parser); + + case 98: + return pluginsd_disable(words, num_words, parser); + + case 99: + return pluginsd_exit(words, num_words, parser); + + case 101: + return pluginsd_register_plugin(words, num_words, parser); + + case 102: + return pluginsd_register_module(words, num_words, parser); + + case 103: + return pluginsd_register_job(words, num_words, parser); + + case 104: + return pluginsd_dyncfg_reset(words, num_words, parser); + + case 110: + return pluginsd_job_status(words, num_words, parser); + + case 111: + return pluginsd_delete_job(words, num_words, parser); + + default: + fatal("Unknown keyword '%s' with id %zu", keyword->keyword, keyword->id); + } +} + +#include "gperf-hashtable.h" + +void parser_init_repertoire(PARSER *parser, PARSER_REPERTOIRE repertoire) { + parser->repertoire = repertoire; + + for(size_t i = GPERF_PARSER_MIN_HASH_VALUE ; i <= GPERF_PARSER_MAX_HASH_VALUE ;i++) { + if(gperf_keywords[i].keyword && *gperf_keywords[i].keyword && (parser->repertoire & gperf_keywords[i].repertoire)) + worker_register_job_name(gperf_keywords[i].worker_job_id, gperf_keywords[i].keyword); + } +} + +static void parser_destroy_dyncfg(PARSER *parser) { + if (parser->user.cd != NULL && parser->user.cd->configuration != NULL) { + unregister_plugin(parser->user.host->configurable_plugins, parser->user.cd->cfg_dict_item); + parser->user.cd->configuration = NULL; + } else if (parser->user.host != NULL && SERVING_STREAMING(parser) && parser->user.host != localhost){ + dictionary_flush(parser->user.host->configurable_plugins); + } +} + +void parser_destroy(PARSER *parser) { + if (unlikely(!parser)) + return; + + parser_destroy_dyncfg(parser); + + dictionary_destroy(parser->inflight.functions); + freez(parser); +} + +int pluginsd_parser_unittest(void) { + PARSER *p = parser_init(NULL, NULL, NULL, -1, PARSER_INPUT_SPLIT, NULL); + pluginsd_keywords_init(p, PARSER_INIT_PLUGINSD | PARSER_INIT_STREAMING); + + char *lines[] = { + "BEGIN2 abcdefghijklmnopqr 123", + "SET2 abcdefg 0x12345678 0 0", + "SET2 hijklmnoqr 0x12345678 0 0", + "SET2 stuvwxyz 0x12345678 0 0", + "END2", + NULL, + }; + + char *words[PLUGINSD_MAX_WORDS]; + size_t iterations = 1000000; + size_t count = 0; + char input[PLUGINSD_LINE_MAX + 1]; + + usec_t started = now_realtime_usec(); + while(--iterations) { + for(size_t line = 0; lines[line] ;line++) { + strncpyz(input, lines[line], PLUGINSD_LINE_MAX); + size_t num_words = quoted_strings_splitter_pluginsd(input, words, PLUGINSD_MAX_WORDS); + const char *command = get_word(words, num_words, 0); + PARSER_KEYWORD *keyword = parser_find_keyword(p, command); + if(unlikely(!keyword)) + fatal("Cannot parse the line '%s'", lines[line]); + count++; + } + } + usec_t ended = now_realtime_usec(); + + netdata_log_info("Parsed %zu lines in %0.2f secs, %0.2f klines/sec", count, + (double)(ended - started) / (double)USEC_PER_SEC, + (double)count / ((double)(ended - started) / (double)USEC_PER_SEC) / 1000.0); + + parser_destroy(p); + return 0; +} |