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// SPDX-License-Identifier: GPL-3.0-or-later
#include "internal.h"
inline const char *rrdcontext_acquired_id(RRDCONTEXT_ACQUIRED *rca) {
RRDCONTEXT *rc = rrdcontext_acquired_value(rca);
return string2str(rc->id);
}
inline bool rrdcontext_acquired_belongs_to_host(RRDCONTEXT_ACQUIRED *rca, RRDHOST *host) {
RRDCONTEXT *rc = rrdcontext_acquired_value(rca);
return rc->rrdhost == host;
}
// ----------------------------------------------------------------------------
// RRDCONTEXT
static void rrdcontext_freez(RRDCONTEXT *rc) {
string_freez(rc->id);
string_freez(rc->title);
string_freez(rc->units);
string_freez(rc->family);
}
static void rrdcontext_insert_callback(const DICTIONARY_ITEM *item __maybe_unused, void *value, void *rrdhost) {
RRDHOST *host = (RRDHOST *)rrdhost;
RRDCONTEXT *rc = (RRDCONTEXT *)value;
rc->rrdhost = host;
rc->flags = rc->flags & RRD_FLAGS_ALLOWED_EXTERNALLY_ON_NEW_OBJECTS; // no need for atomics at constructor
if(rc->hub.version) {
// we are loading data from the SQL database
if(rc->version)
error("RRDCONTEXT: context '%s' is already initialized with version %"PRIu64", but it is loaded again from SQL with version %"PRIu64"", string2str(rc->id), rc->version, rc->hub.version);
// IMPORTANT
// replace all string pointers in rc->hub with our own versions
// the originals are coming from a tmp allocation of sqlite
string_freez(rc->id);
rc->id = string_strdupz(rc->hub.id);
rc->hub.id = string2str(rc->id);
string_freez(rc->title);
rc->title = string_strdupz(rc->hub.title);
rc->hub.title = string2str(rc->title);
string_freez(rc->units);
rc->units = string_strdupz(rc->hub.units);
rc->hub.units = string2str(rc->units);
string_freez(rc->family);
rc->family = string_strdupz(rc->hub.family);
rc->hub.family = string2str(rc->family);
rc->chart_type = rrdset_type_id(rc->hub.chart_type);
rc->hub.chart_type = rrdset_type_name(rc->chart_type);
rc->version = rc->hub.version;
rc->priority = rc->hub.priority;
rc->first_time_s = (time_t)rc->hub.first_time_s;
rc->last_time_s = (time_t)rc->hub.last_time_s;
if(rc->hub.deleted || !rc->hub.first_time_s)
rrd_flag_set_deleted(rc, RRD_FLAG_NONE);
else {
if (rc->last_time_s == 0)
rrd_flag_set_collected(rc);
else
rrd_flag_set_archived(rc);
}
rc->flags |= RRD_FLAG_UPDATE_REASON_LOAD_SQL; // no need for atomics at constructor
}
else {
// we are adding this context now for the first time
rc->version = now_realtime_sec();
}
rrdinstances_create_in_rrdcontext(rc);
netdata_mutex_init(&rc->mutex);
// signal the react callback to do the job
rrd_flag_set_updated(rc, RRD_FLAG_UPDATE_REASON_NEW_OBJECT);
}
static void rrdcontext_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *value, void *rrdhost __maybe_unused) {
RRDCONTEXT *rc = (RRDCONTEXT *)value;
rrdinstances_destroy_from_rrdcontext(rc);
netdata_mutex_destroy(&rc->mutex);
rrdcontext_freez(rc);
}
static bool rrdcontext_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *old_value, void *new_value, void *rrdhost __maybe_unused) {
RRDCONTEXT *rc = (RRDCONTEXT *)old_value;
RRDCONTEXT *rc_new = (RRDCONTEXT *)new_value;
//current rc is not archived, new_rc is archived, don't merge
if (!rrd_flag_is_archived(rc) && rrd_flag_is_archived(rc_new)) {
rrdcontext_freez(rc_new);
return false;
}
rrdcontext_lock(rc);
if(rc->title != rc_new->title) {
STRING *old_title = rc->title;
if (rrd_flag_is_archived(rc) && !rrd_flag_is_archived(rc_new))
rc->title = string_dup(rc_new->title);
else
rc->title = string_2way_merge(rc->title, rc_new->title);
string_freez(old_title);
rrd_flag_set_updated(rc, RRD_FLAG_UPDATE_REASON_CHANGED_METADATA);
}
if(rc->units != rc_new->units) {
STRING *old_units = rc->units;
rc->units = string_dup(rc_new->units);
string_freez(old_units);
rrd_flag_set_updated(rc, RRD_FLAG_UPDATE_REASON_CHANGED_METADATA);
}
if(rc->family != rc_new->family) {
STRING *old_family = rc->family;
if (rrd_flag_is_archived(rc) && !rrd_flag_is_archived(rc_new))
rc->family = string_dup(rc_new->family);
else
rc->family = string_2way_merge(rc->family, rc_new->family);
string_freez(old_family);
rrd_flag_set_updated(rc, RRD_FLAG_UPDATE_REASON_CHANGED_METADATA);
}
if(rc->chart_type != rc_new->chart_type) {
rc->chart_type = rc_new->chart_type;
rrd_flag_set_updated(rc, RRD_FLAG_UPDATE_REASON_CHANGED_METADATA);
}
if(rc->priority != rc_new->priority) {
rc->priority = rc_new->priority;
rrd_flag_set_updated(rc, RRD_FLAG_UPDATE_REASON_CHANGED_METADATA);
}
rrd_flag_set(rc, rc_new->flags & RRD_FLAGS_ALLOWED_EXTERNALLY_ON_NEW_OBJECTS); // no need for atomics on rc_new
if(rrd_flag_is_collected(rc) && rrd_flag_is_archived(rc))
rrd_flag_set_collected(rc);
if(rrd_flag_is_updated(rc))
rrd_flag_set(rc, RRD_FLAG_UPDATE_REASON_UPDATED_OBJECT);
rrdcontext_unlock(rc);
// free the resources of the new one
rrdcontext_freez(rc_new);
// the react callback will continue from here
return rrd_flag_is_updated(rc);
}
static void rrdcontext_react_callback(const DICTIONARY_ITEM *item __maybe_unused, void *value, void *rrdhost __maybe_unused) {
RRDCONTEXT *rc = (RRDCONTEXT *)value;
rrdcontext_trigger_updates(rc, __FUNCTION__ );
}
void rrdcontext_trigger_updates(RRDCONTEXT *rc, const char *function) {
if(rrd_flag_is_updated(rc) || !rrd_flag_check(rc, RRD_FLAG_LIVE_RETENTION))
rrdcontext_queue_for_post_processing(rc, function, rc->flags);
}
static void rrdcontext_hub_queue_insert_callback(const DICTIONARY_ITEM *item __maybe_unused, void *context, void *nothing __maybe_unused) {
RRDCONTEXT *rc = context;
rrd_flag_set(rc, RRD_FLAG_QUEUED_FOR_HUB);
rc->queue.queued_ut = now_realtime_usec();
rc->queue.queued_flags = rrd_flags_get(rc);
}
static void rrdcontext_hub_queue_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *context, void *nothing __maybe_unused) {
RRDCONTEXT *rc = context;
rrd_flag_clear(rc, RRD_FLAG_QUEUED_FOR_HUB);
}
static bool rrdcontext_hub_queue_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *context, void *new_context __maybe_unused, void *nothing __maybe_unused) {
// context and new_context are the same
// we just need to update the timings
RRDCONTEXT *rc = context;
rrd_flag_set(rc, RRD_FLAG_QUEUED_FOR_HUB);
rc->queue.queued_ut = now_realtime_usec();
rc->queue.queued_flags |= rrd_flags_get(rc);
return true;
}
static void rrdcontext_post_processing_queue_insert_callback(const DICTIONARY_ITEM *item __maybe_unused, void *context, void *nothing __maybe_unused) {
RRDCONTEXT *rc = context;
rrd_flag_set(rc, RRD_FLAG_QUEUED_FOR_PP);
rc->pp.queued_flags = rc->flags;
rc->pp.queued_ut = now_realtime_usec();
}
static void rrdcontext_post_processing_queue_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *context, void *nothing __maybe_unused) {
RRDCONTEXT *rc = context;
rrd_flag_clear(rc, RRD_FLAG_QUEUED_FOR_PP);
rc->pp.dequeued_ut = now_realtime_usec();
}
static bool rrdcontext_post_processing_queue_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *context, void *new_context __maybe_unused, void *nothing __maybe_unused) {
RRDCONTEXT *rc = context;
bool changed = false;
if(!(rc->flags & RRD_FLAG_QUEUED_FOR_PP)) {
rrd_flag_set(rc, RRD_FLAG_QUEUED_FOR_PP);
changed = true;
}
if(rc->pp.queued_flags != rc->flags) {
rc->pp.queued_flags |= rc->flags;
changed = true;
}
return changed;
}
void rrdhost_create_rrdcontexts(RRDHOST *host) {
if(unlikely(!host)) return;
if(likely(host->rrdctx.contexts)) return;
host->rrdctx.contexts = dictionary_create_advanced(
DICT_OPTION_DONT_OVERWRITE_VALUE | DICT_OPTION_FIXED_SIZE,
&dictionary_stats_category_rrdcontext, sizeof(RRDCONTEXT));
dictionary_register_insert_callback(host->rrdctx.contexts, rrdcontext_insert_callback, host);
dictionary_register_delete_callback(host->rrdctx.contexts, rrdcontext_delete_callback, host);
dictionary_register_conflict_callback(host->rrdctx.contexts, rrdcontext_conflict_callback, host);
dictionary_register_react_callback(host->rrdctx.contexts, rrdcontext_react_callback, host);
host->rrdctx.hub_queue = dictionary_create_advanced(DICT_OPTION_DONT_OVERWRITE_VALUE | DICT_OPTION_VALUE_LINK_DONT_CLONE, &dictionary_stats_category_rrdcontext, 0);
dictionary_register_insert_callback(host->rrdctx.hub_queue, rrdcontext_hub_queue_insert_callback, NULL);
dictionary_register_delete_callback(host->rrdctx.hub_queue, rrdcontext_hub_queue_delete_callback, NULL);
dictionary_register_conflict_callback(host->rrdctx.hub_queue, rrdcontext_hub_queue_conflict_callback, NULL);
host->rrdctx.pp_queue = dictionary_create_advanced(DICT_OPTION_DONT_OVERWRITE_VALUE | DICT_OPTION_VALUE_LINK_DONT_CLONE, &dictionary_stats_category_rrdcontext, 0);
dictionary_register_insert_callback(host->rrdctx.pp_queue, rrdcontext_post_processing_queue_insert_callback, NULL);
dictionary_register_delete_callback(host->rrdctx.pp_queue, rrdcontext_post_processing_queue_delete_callback, NULL);
dictionary_register_conflict_callback(host->rrdctx.pp_queue, rrdcontext_post_processing_queue_conflict_callback, NULL);
}
void rrdhost_destroy_rrdcontexts(RRDHOST *host) {
if(unlikely(!host)) return;
if(unlikely(!host->rrdctx.contexts)) return;
DICTIONARY *old;
if(host->rrdctx.hub_queue) {
old = host->rrdctx.hub_queue;
host->rrdctx.hub_queue = NULL;
RRDCONTEXT *rc;
dfe_start_write(old, rc) {
dictionary_del(old, string2str(rc->id));
}
dfe_done(rc);
dictionary_destroy(old);
}
if(host->rrdctx.pp_queue) {
old = host->rrdctx.pp_queue;
host->rrdctx.pp_queue = NULL;
RRDCONTEXT *rc;
dfe_start_write(old, rc) {
dictionary_del(old, string2str(rc->id));
}
dfe_done(rc);
dictionary_destroy(old);
}
old = host->rrdctx.contexts;
host->rrdctx.contexts = NULL;
dictionary_destroy(old);
}
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