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controller registry

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This commit is contained in:
J. Nick Koston
2025-11-07 16:01:45 -06:00
parent 929279dc23
commit 6ef2763cab
2 changed files with 6 additions and 36 deletions
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7
esphome/core/controller_registry.cpp
View File

@@ -7,13 +7,6 @@ std::vector<Controller *> ControllerRegistry::controllers_;
void ControllerRegistry::register_controller(Controller *controller) { controllers_.push_back(controller); }
void ControllerRegistry::unregister_controller(Controller *controller) {
auto it = std::find(controllers_.begin(), controllers_.end(), controller);
if (it != controllers_.end()) {
controllers_.erase(it);
}
}
#ifdef USE_BINARY_SENSOR
void ControllerRegistry::notify_binary_sensor_update(binary_sensor::BinarySensor *obj) {
for (auto *controller : controllers_) {

35
esphome/core/controller_registry.h
View File

@@ -133,12 +133,16 @@ class UpdateEntity;
* This singleton registry allows Controllers (APIServer, WebServer) to receive
* entity state change notifications without storing per-entity callbacks.
*
* Instead of each entity maintaining a list of controller callbacks (32 bytes overhead),
* Instead of each entity maintaining controller callbacks (32 bytes overhead per entity),
* entities call ControllerRegistry::notify_*_update() which iterates the small list
* of registered controllers (typically 2: API and WebServer).
*
* Controllers read state directly from entities using existing accessors (obj->state, etc.)
* rather than receiving it as callback parameters that were being ignored anyway.
*
* Memory savings: 32 bytes per entity (2 controllers × 16 bytes std::function overhead)
* For 80 entities: 2,560 bytes saved
* Typical config (25 entities): ~780 bytes saved
* Large config (80 entities): ~2,540 bytes saved
*/
class ControllerRegistry {
public:
@@ -149,110 +153,83 @@ class ControllerRegistry {
*/
static void register_controller(Controller *controller);
/** Unregister a controller (rarely used).
*
* Controllers are typically never unregistered in ESPHome's lifecycle,
* but this is provided for completeness and testing.
*/
static void unregister_controller(Controller *controller);
#ifdef USE_BINARY_SENSOR
/** Notify all controllers of a binary sensor state update. */
static void notify_binary_sensor_update(binary_sensor::BinarySensor *obj);
#endif
#ifdef USE_FAN
/** Notify all controllers of a fan state update. */
static void notify_fan_update(fan::Fan *obj);
#endif
#ifdef USE_LIGHT
/** Notify all controllers of a light state update. */
static void notify_light_update(light::LightState *obj);
#endif
#ifdef USE_SENSOR
/** Notify all controllers of a sensor state update. */
static void notify_sensor_update(sensor::Sensor *obj);
#endif
#ifdef USE_SWITCH
/** Notify all controllers of a switch state update. */
static void notify_switch_update(switch_::Switch *obj);
#endif
#ifdef USE_COVER
/** Notify all controllers of a cover state update. */
static void notify_cover_update(cover::Cover *obj);
#endif
#ifdef USE_TEXT_SENSOR
/** Notify all controllers of a text sensor state update. */
static void notify_text_sensor_update(text_sensor::TextSensor *obj);
#endif
#ifdef USE_CLIMATE
/** Notify all controllers of a climate state update. */
static void notify_climate_update(climate::Climate *obj);
#endif
#ifdef USE_NUMBER
/** Notify all controllers of a number state update. */
static void notify_number_update(number::Number *obj);
#endif
#ifdef USE_DATETIME_DATE
/** Notify all controllers of a date entity state update. */
static void notify_date_update(datetime::DateEntity *obj);
#endif
#ifdef USE_DATETIME_TIME
/** Notify all controllers of a time entity state update. */
static void notify_time_update(datetime::TimeEntity *obj);
#endif
#ifdef USE_DATETIME_DATETIME
/** Notify all controllers of a datetime entity state update. */
static void notify_datetime_update(datetime::DateTimeEntity *obj);
#endif
#ifdef USE_TEXT
/** Notify all controllers of a text entity state update. */
static void notify_text_update(text::Text *obj);
#endif
#ifdef USE_SELECT
/** Notify all controllers of a select entity state update. */
static void notify_select_update(select::Select *obj);
#endif
#ifdef USE_LOCK
/** Notify all controllers of a lock state update. */
static void notify_lock_update(lock::Lock *obj);
#endif
#ifdef USE_VALVE
/** Notify all controllers of a valve state update. */
static void notify_valve_update(valve::Valve *obj);
#endif
#ifdef USE_MEDIA_PLAYER
/** Notify all controllers of a media player state update. */
static void notify_media_player_update(media_player::MediaPlayer *obj);
#endif
#ifdef USE_ALARM_CONTROL_PANEL
/** Notify all controllers of an alarm control panel state update. */
static void notify_alarm_control_panel_update(alarm_control_panel::AlarmControlPanel *obj);
#endif
#ifdef USE_EVENT
/** Notify all controllers of an event trigger. */
static void notify_event(event::Event *obj);
#endif
#ifdef USE_UPDATE
/** Notify all controllers of an update entity state update. */
static void notify_update(update::UpdateEntity *obj);
#endif