diff options
Diffstat (limited to 'database/rrdsetvar.c')
| -rw-r--r-- | database/rrdsetvar.c | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/database/rrdsetvar.c b/database/rrdsetvar.c deleted file mode 100644 index 379f92eec..000000000 --- a/database/rrdsetvar.c +++ /dev/null @@ -1,299 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#include "rrd.h" - -typedef struct rrdsetvar { - STRING *name; // variable name - void *value; // we need this to maintain the allocation for custom chart variables - - const RRDVAR_ACQUIRED *rrdvar_local; - const RRDVAR_ACQUIRED *rrdvar_family_chart_id; - const RRDVAR_ACQUIRED *rrdvar_family_chart_name; - const RRDVAR_ACQUIRED *rrdvar_host_chart_id; - const RRDVAR_ACQUIRED *rrdvar_host_chart_name; - - RRDVAR_FLAGS flags:24; - RRDVAR_TYPE type:8; -} RRDSETVAR; - -// should only be called while the rrdsetvar dict is write locked -// otherwise, 2+ threads may be setting the same variables at the same time -static inline void rrdsetvar_free_rrdvars_unsafe(RRDSET *st, RRDSETVAR *rs) { - RRDHOST *host = st->rrdhost; - - // ------------------------------------------------------------------------ - // CHART - - if(st->rrdvars) { - rrdvar_release_and_del(st->rrdvars, rs->rrdvar_local); - rs->rrdvar_local = NULL; - } - - // ------------------------------------------------------------------------ - // FAMILY - - if(st->rrdfamily) { - rrdvar_release_and_del(rrdfamily_rrdvars_dict(st->rrdfamily), rs->rrdvar_family_chart_id); - rs->rrdvar_family_chart_id = NULL; - - rrdvar_release_and_del(rrdfamily_rrdvars_dict(st->rrdfamily), rs->rrdvar_family_chart_name); - rs->rrdvar_family_chart_name = NULL; - } - - // ------------------------------------------------------------------------ - // HOST - - if(host->rrdvars && host->health.health_enabled) { - rrdvar_release_and_del(host->rrdvars, rs->rrdvar_host_chart_id); - rs->rrdvar_host_chart_id = NULL; - - rrdvar_release_and_del(host->rrdvars, rs->rrdvar_host_chart_name); - rs->rrdvar_host_chart_name = NULL; - } -} - -// should only be called while the rrdsetvar dict is write locked -// otherwise, 2+ threads may be setting the same variables at the same time -static inline void rrdsetvar_update_rrdvars_unsafe(RRDSET *st, RRDSETVAR *rs) { - RRDHOST *host = st->rrdhost; - - RRDVAR_FLAGS options = rs->flags; - options &= ~RRDVAR_OPTIONS_REMOVED_WHEN_PROPAGATING_TO_RRDVAR; - - // ------------------------------------------------------------------------ - // free the old ones (if any) - - rrdsetvar_free_rrdvars_unsafe(st, rs); - - // ------------------------------------------------------------------------ - // KEYS - - char buffer[RRDVAR_MAX_LENGTH + 1]; - snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", rrdset_id(st), string2str(rs->name)); - STRING *key_chart_id = string_strdupz(buffer); - - snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", rrdset_name(st), string2str(rs->name)); - STRING *key_chart_name = string_strdupz(buffer); - - // ------------------------------------------------------------------------ - // CHART - - if(st->rrdvars) { - rs->rrdvar_local = rrdvar_add_and_acquire("local", st->rrdvars, rs->name, rs->type, options, rs->value); - } - - // ------------------------------------------------------------------------ - // FAMILY - - if(st->rrdfamily) { - rs->rrdvar_family_chart_id = rrdvar_add_and_acquire("family", rrdfamily_rrdvars_dict(st->rrdfamily), key_chart_id, rs->type, options, rs->value); - rs->rrdvar_family_chart_name = rrdvar_add_and_acquire("family", rrdfamily_rrdvars_dict(st->rrdfamily), key_chart_name, rs->type, options, rs->value); - } - - // ------------------------------------------------------------------------ - // HOST - - if(host->rrdvars && host->health.health_enabled) { - rs->rrdvar_host_chart_id = rrdvar_add_and_acquire("host", host->rrdvars, key_chart_id, rs->type, options, rs->value); - rs->rrdvar_host_chart_name = rrdvar_add_and_acquire("host", host->rrdvars, key_chart_name, rs->type, options, rs->value); - } - - // free the keys - string_freez(key_chart_id); - string_freez(key_chart_name); -} - -static void rrdsetvar_free_value_unsafe(RRDSETVAR *rs) { - if(rs->flags & RRDVAR_FLAG_ALLOCATED) { - void *old = rs->value; - rs->value = NULL; - rs->flags &= ~RRDVAR_FLAG_ALLOCATED; - freez(old); - } -} - -static void rrdsetvar_set_value_unsafe(RRDSETVAR *rs, void *new_value) { - rrdsetvar_free_value_unsafe(rs); - - if(new_value) - rs->value = new_value; - else { - NETDATA_DOUBLE *n = mallocz(sizeof(NETDATA_DOUBLE)); - *n = NAN; - rs->value = n; - rs->flags |= RRDVAR_FLAG_ALLOCATED; - } -} - -struct rrdsetvar_constructor { - RRDSET *rrdset; - const char *name; - void *value; - RRDVAR_FLAGS flags :16; - RRDVAR_TYPE type:8; -}; - -static void rrdsetvar_insert_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdsetvar, void *constructor_data) { - RRDSETVAR *rs = rrdsetvar; - struct rrdsetvar_constructor *ctr = constructor_data; - - ctr->flags &= ~RRDVAR_OPTIONS_REMOVED_ON_NEW_OBJECTS; - - rs->name = string_strdupz(ctr->name); - rs->type = ctr->type; - rs->flags = ctr->flags; - rrdsetvar_set_value_unsafe(rs, ctr->value); - - // create the rrdvariables while we are having a write lock to the dictionary - rrdsetvar_update_rrdvars_unsafe(ctr->rrdset, rs); -} - -static bool rrdsetvar_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdsetvar, void *new_rrdsetvar __maybe_unused, void *constructor_data) { - RRDSETVAR *rs = rrdsetvar; - struct rrdsetvar_constructor *ctr = constructor_data; - - ctr->flags &= ~RRDVAR_OPTIONS_REMOVED_ON_NEW_OBJECTS; - - RRDVAR_FLAGS options = rs->flags; - options &= ~RRDVAR_OPTIONS_REMOVED_ON_NEW_OBJECTS; - - if(((ctr->value == NULL && rs->value != NULL && rs->flags & RRDVAR_FLAG_ALLOCATED) || (rs->value == ctr->value)) - && ctr->flags == options && rs->type == ctr->type) { - // don't reset it - everything is the same, or as it should... - return false; - } - - internal_error(true, "RRDSETVAR: resetting variable '%s' of chart '%s' of host '%s', options from 0x%x to 0x%x, type from %d to %d", - string2str(rs->name), rrdset_id(ctr->rrdset), rrdhost_hostname(ctr->rrdset->rrdhost), - options, ctr->flags, rs->type, ctr->type); - - rrdsetvar_free_value_unsafe(rs); // we are going to change the options, so free it before setting it - rs->flags = ctr->flags; - rs->type = ctr->type; - rrdsetvar_set_value_unsafe(rs, ctr->value); - - // recreate the rrdvariables while we are having a write lock to the dictionary - rrdsetvar_update_rrdvars_unsafe(ctr->rrdset, rs); - return true; -} - -static void rrdsetvar_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdsetvar, void *rrdset __maybe_unused) { - RRDSET *st = rrdset; - RRDSETVAR *rs = rrdsetvar; - - rrdsetvar_free_rrdvars_unsafe(st, rs); - rrdsetvar_free_value_unsafe(rs); - string_freez(rs->name); - rs->name = NULL; -} - -void rrdsetvar_index_init(RRDSET *st) { - if(!st->rrdsetvar_root_index) { - st->rrdsetvar_root_index = dictionary_create_advanced(DICT_OPTION_DONT_OVERWRITE_VALUE | DICT_OPTION_FIXED_SIZE, - &dictionary_stats_category_rrdhealth, sizeof(RRDSETVAR)); - - dictionary_register_insert_callback(st->rrdsetvar_root_index, rrdsetvar_insert_callback, NULL); - dictionary_register_conflict_callback(st->rrdsetvar_root_index, rrdsetvar_conflict_callback, NULL); - dictionary_register_delete_callback(st->rrdsetvar_root_index, rrdsetvar_delete_callback, st); - } -} - -void rrdsetvar_index_destroy(RRDSET *st) { - dictionary_destroy(st->rrdsetvar_root_index); - st->rrdsetvar_root_index = NULL; -} - -const RRDSETVAR_ACQUIRED *rrdsetvar_add_and_acquire(RRDSET *st, const char *name, RRDVAR_TYPE type, void *value, RRDVAR_FLAGS flags) { - struct rrdsetvar_constructor tmp = { - .name = name, - .type = type, - .value = value, - .flags = flags, - .rrdset = st, - }; - - const RRDSETVAR_ACQUIRED *rsa = (const RRDSETVAR_ACQUIRED *)dictionary_set_and_acquire_item_advanced(st->rrdsetvar_root_index, name, -1, NULL, sizeof(RRDSETVAR), &tmp); - return rsa; -} - -void rrdsetvar_add_and_leave_released(RRDSET *st, const char *name, RRDVAR_TYPE type, void *value, RRDVAR_FLAGS flags) { - const RRDSETVAR_ACQUIRED *rsa = rrdsetvar_add_and_acquire(st, name, type, value, flags); - dictionary_acquired_item_release(st->rrdsetvar_root_index, (const DICTIONARY_ITEM *)rsa); -} - -void rrdsetvar_rename_all(RRDSET *st) { - netdata_log_debug(D_VARIABLES, "RRDSETVAR rename for chart id '%s' name '%s'", rrdset_id(st), rrdset_name(st)); - - RRDSETVAR *rs; - dfe_start_write(st->rrdsetvar_root_index, rs) { - // should only be called while the rrdsetvar dict is write locked - rrdsetvar_update_rrdvars_unsafe(st, rs); - } - dfe_done(rs); - - rrdcalc_link_matching_alerts_to_rrdset(st); -} - -void rrdsetvar_release_and_delete_all(RRDSET *st) { - RRDSETVAR *rs; - dfe_start_write(st->rrdsetvar_root_index, rs) { - dictionary_del_advanced(st->rrdsetvar_root_index, string2str(rs->name), (ssize_t)string_strlen(rs->name) + 1); - } - dfe_done(rs); -} - -void rrdsetvar_release(DICTIONARY *dict, const RRDSETVAR_ACQUIRED *rsa) { - dictionary_acquired_item_release(dict, (const DICTIONARY_ITEM *)rsa); -} - -// -------------------------------------------------------------------------------------------------------------------- -// custom chart variables - -const RRDSETVAR_ACQUIRED *rrdsetvar_custom_chart_variable_add_and_acquire(RRDSET *st, const char *name) { - STRING *name_string = rrdvar_name_to_string(name); - const RRDSETVAR_ACQUIRED *rs = rrdsetvar_add_and_acquire(st, string2str(name_string), RRDVAR_TYPE_CALCULATED, NULL, RRDVAR_FLAG_CUSTOM_CHART_VAR); - string_freez(name_string); - return rs; -} - -void rrdsetvar_custom_chart_variable_set(RRDSET *st, const RRDSETVAR_ACQUIRED *rsa, NETDATA_DOUBLE value) { - if(!rsa) return; - - RRDSETVAR *rs = dictionary_acquired_item_value((const DICTIONARY_ITEM *)rsa); - - if(rs->type != RRDVAR_TYPE_CALCULATED || !(rs->flags & RRDVAR_FLAG_CUSTOM_CHART_VAR) || !(rs->flags & RRDVAR_FLAG_ALLOCATED)) { - netdata_log_error("RRDSETVAR: requested to set variable '%s' of chart '%s' on host '%s' to value " NETDATA_DOUBLE_FORMAT - " but the variable is not a custom chart one (it has options 0x%x, value pointer %p). Ignoring request.", - string2str(rs->name), - rrdset_id(st), - rrdhost_hostname(st->rrdhost), - value, - (uint32_t)rs->flags, rs->value); - } - else { - NETDATA_DOUBLE *v = rs->value; - if(*v != value) { - *v = value; - rrdset_flag_set(st, RRDSET_FLAG_UPSTREAM_SEND_VARIABLES); - } - } -} - -void rrdsetvar_print_to_streaming_custom_chart_variables(RRDSET *st, BUFFER *wb) { - rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_SEND_VARIABLES); - - // send the chart local custom variables - RRDSETVAR *rs; - dfe_start_read(st->rrdsetvar_root_index, rs) { - if(unlikely(rs->type == RRDVAR_TYPE_CALCULATED && rs->flags & RRDVAR_FLAG_CUSTOM_CHART_VAR)) { - NETDATA_DOUBLE *value = (NETDATA_DOUBLE *) rs->value; - - buffer_sprintf(wb - , "VARIABLE CHART %s = " NETDATA_DOUBLE_FORMAT "\n" - , string2str(rs->name) - , *value - ); - } - } - dfe_done(rs); -} |