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[core] Convert entity vectors to static allocation for reduced memory usage (#10018)

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This commit is contained in:
J. Nick Koston
2025-08-01 20:26:22 -10:00
committed by GitHub
parent 00d9baed11
commit 4f58e1c8b9
6 changed files with 118 additions and 124 deletions
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150
esphome/core/application.h
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@@ -216,69 +216,6 @@ class Application {
/// Reserve space for components to avoid memory fragmentation
void reserve_components(size_t count) { this->components_.reserve(count); }
#ifdef USE_BINARY_SENSOR
void reserve_binary_sensor(size_t count) { this->binary_sensors_.reserve(count); }
#endif
#ifdef USE_SWITCH
void reserve_switch(size_t count) { this->switches_.reserve(count); }
#endif
#ifdef USE_BUTTON
void reserve_button(size_t count) { this->buttons_.reserve(count); }
#endif
#ifdef USE_SENSOR
void reserve_sensor(size_t count) { this->sensors_.reserve(count); }
#endif
#ifdef USE_TEXT_SENSOR
void reserve_text_sensor(size_t count) { this->text_sensors_.reserve(count); }
#endif
#ifdef USE_FAN
void reserve_fan(size_t count) { this->fans_.reserve(count); }
#endif
#ifdef USE_COVER
void reserve_cover(size_t count) { this->covers_.reserve(count); }
#endif
#ifdef USE_CLIMATE
void reserve_climate(size_t count) { this->climates_.reserve(count); }
#endif
#ifdef USE_LIGHT
void reserve_light(size_t count) { this->lights_.reserve(count); }
#endif
#ifdef USE_NUMBER
void reserve_number(size_t count) { this->numbers_.reserve(count); }
#endif
#ifdef USE_DATETIME_DATE
void reserve_date(size_t count) { this->dates_.reserve(count); }
#endif
#ifdef USE_DATETIME_TIME
void reserve_time(size_t count) { this->times_.reserve(count); }
#endif
#ifdef USE_DATETIME_DATETIME
void reserve_datetime(size_t count) { this->datetimes_.reserve(count); }
#endif
#ifdef USE_SELECT
void reserve_select(size_t count) { this->selects_.reserve(count); }
#endif
#ifdef USE_TEXT
void reserve_text(size_t count) { this->texts_.reserve(count); }
#endif
#ifdef USE_LOCK
void reserve_lock(size_t count) { this->locks_.reserve(count); }
#endif
#ifdef USE_VALVE
void reserve_valve(size_t count) { this->valves_.reserve(count); }
#endif
#ifdef USE_MEDIA_PLAYER
void reserve_media_player(size_t count) { this->media_players_.reserve(count); }
#endif
#ifdef USE_ALARM_CONTROL_PANEL
void reserve_alarm_control_panel(size_t count) { this->alarm_control_panels_.reserve(count); }
#endif
#ifdef USE_EVENT
void reserve_event(size_t count) { this->events_.reserve(count); }
#endif
#ifdef USE_UPDATE
void reserve_update(size_t count) { this->updates_.reserve(count); }
#endif
#ifdef USE_AREAS
void reserve_area(size_t count) { this->areas_.reserve(count); }
#endif
@@ -394,92 +331,90 @@ class Application {
const std::vector<Area *> &get_areas() { return this->areas_; }
#endif
#ifdef USE_BINARY_SENSOR
const std::vector<binary_sensor::BinarySensor *> &get_binary_sensors() { return this->binary_sensors_; }
auto &get_binary_sensors() const { return this->binary_sensors_; }
GET_ENTITY_METHOD(binary_sensor::BinarySensor, binary_sensor, binary_sensors)
#endif
#ifdef USE_SWITCH
const std::vector<switch_::Switch *> &get_switches() { return this->switches_; }
auto &get_switches() const { return this->switches_; }
GET_ENTITY_METHOD(switch_::Switch, switch, switches)
#endif
#ifdef USE_BUTTON
const std::vector<button::Button *> &get_buttons() { return this->buttons_; }
auto &get_buttons() const { return this->buttons_; }
GET_ENTITY_METHOD(button::Button, button, buttons)
#endif
#ifdef USE_SENSOR
const std::vector<sensor::Sensor *> &get_sensors() { return this->sensors_; }
auto &get_sensors() const { return this->sensors_; }
GET_ENTITY_METHOD(sensor::Sensor, sensor, sensors)
#endif
#ifdef USE_TEXT_SENSOR
const std::vector<text_sensor::TextSensor *> &get_text_sensors() { return this->text_sensors_; }
auto &get_text_sensors() const { return this->text_sensors_; }
GET_ENTITY_METHOD(text_sensor::TextSensor, text_sensor, text_sensors)
#endif
#ifdef USE_FAN
const std::vector<fan::Fan *> &get_fans() { return this->fans_; }
auto &get_fans() const { return this->fans_; }
GET_ENTITY_METHOD(fan::Fan, fan, fans)
#endif
#ifdef USE_COVER
const std::vector<cover::Cover *> &get_covers() { return this->covers_; }
auto &get_covers() const { return this->covers_; }
GET_ENTITY_METHOD(cover::Cover, cover, covers)
#endif
#ifdef USE_LIGHT
const std::vector<light::LightState *> &get_lights() { return this->lights_; }
auto &get_lights() const { return this->lights_; }
GET_ENTITY_METHOD(light::LightState, light, lights)
#endif
#ifdef USE_CLIMATE
const std::vector<climate::Climate *> &get_climates() { return this->climates_; }
auto &get_climates() const { return this->climates_; }
GET_ENTITY_METHOD(climate::Climate, climate, climates)
#endif
#ifdef USE_NUMBER
const std::vector<number::Number *> &get_numbers() { return this->numbers_; }
auto &get_numbers() const { return this->numbers_; }
GET_ENTITY_METHOD(number::Number, number, numbers)
#endif
#ifdef USE_DATETIME_DATE
const std::vector<datetime::DateEntity *> &get_dates() { return this->dates_; }
auto &get_dates() const { return this->dates_; }
GET_ENTITY_METHOD(datetime::DateEntity, date, dates)
#endif
#ifdef USE_DATETIME_TIME
const std::vector<datetime::TimeEntity *> &get_times() { return this->times_; }
auto &get_times() const { return this->times_; }
GET_ENTITY_METHOD(datetime::TimeEntity, time, times)
#endif
#ifdef USE_DATETIME_DATETIME
const std::vector<datetime::DateTimeEntity *> &get_datetimes() { return this->datetimes_; }
auto &get_datetimes() const { return this->datetimes_; }
GET_ENTITY_METHOD(datetime::DateTimeEntity, datetime, datetimes)
#endif
#ifdef USE_TEXT
const std::vector<text::Text *> &get_texts() { return this->texts_; }
auto &get_texts() const { return this->texts_; }
GET_ENTITY_METHOD(text::Text, text, texts)
#endif
#ifdef USE_SELECT
const std::vector<select::Select *> &get_selects() { return this->selects_; }
auto &get_selects() const { return this->selects_; }
GET_ENTITY_METHOD(select::Select, select, selects)
#endif
#ifdef USE_LOCK
const std::vector<lock::Lock *> &get_locks() { return this->locks_; }
auto &get_locks() const { return this->locks_; }
GET_ENTITY_METHOD(lock::Lock, lock, locks)
#endif
#ifdef USE_VALVE
const std::vector<valve::Valve *> &get_valves() { return this->valves_; }
auto &get_valves() const { return this->valves_; }
GET_ENTITY_METHOD(valve::Valve, valve, valves)
#endif
#ifdef USE_MEDIA_PLAYER
const std::vector<media_player::MediaPlayer *> &get_media_players() { return this->media_players_; }
auto &get_media_players() const { return this->media_players_; }
GET_ENTITY_METHOD(media_player::MediaPlayer, media_player, media_players)
#endif
#ifdef USE_ALARM_CONTROL_PANEL
const std::vector<alarm_control_panel::AlarmControlPanel *> &get_alarm_control_panels() {
return this->alarm_control_panels_;
}
auto &get_alarm_control_panels() const { return this->alarm_control_panels_; }
GET_ENTITY_METHOD(alarm_control_panel::AlarmControlPanel, alarm_control_panel, alarm_control_panels)
#endif
#ifdef USE_EVENT
const std::vector<event::Event *> &get_events() { return this->events_; }
auto &get_events() const { return this->events_; }
GET_ENTITY_METHOD(event::Event, event, events)
#endif
#ifdef USE_UPDATE
const std::vector<update::UpdateEntity *> &get_updates() { return this->updates_; }
auto &get_updates() const { return this->updates_; }
GET_ENTITY_METHOD(update::UpdateEntity, update, updates)
#endif
@@ -558,67 +493,68 @@ class Application {
std::vector<Area *> areas_{};
#endif
#ifdef USE_BINARY_SENSOR
std::vector<binary_sensor::BinarySensor *> binary_sensors_{};
StaticVector<binary_sensor::BinarySensor *, ESPHOME_ENTITY_BINARY_SENSOR_COUNT> binary_sensors_{};
#endif
#ifdef USE_SWITCH
std::vector<switch_::Switch *> switches_{};
StaticVector<switch_::Switch *, ESPHOME_ENTITY_SWITCH_COUNT> switches_{};
#endif
#ifdef USE_BUTTON
std::vector<button::Button *> buttons_{};
StaticVector<button::Button *, ESPHOME_ENTITY_BUTTON_COUNT> buttons_{};
#endif
#ifdef USE_EVENT
std::vector<event::Event *> events_{};
StaticVector<event::Event *, ESPHOME_ENTITY_EVENT_COUNT> events_{};
#endif
#ifdef USE_SENSOR
std::vector<sensor::Sensor *> sensors_{};
StaticVector<sensor::Sensor *, ESPHOME_ENTITY_SENSOR_COUNT> sensors_{};
#endif
#ifdef USE_TEXT_SENSOR
std::vector<text_sensor::TextSensor *> text_sensors_{};
StaticVector<text_sensor::TextSensor *, ESPHOME_ENTITY_TEXT_SENSOR_COUNT> text_sensors_{};
#endif
#ifdef USE_FAN
std::vector<fan::Fan *> fans_{};
StaticVector<fan::Fan *, ESPHOME_ENTITY_FAN_COUNT> fans_{};
#endif
#ifdef USE_COVER
std::vector<cover::Cover *> covers_{};
StaticVector<cover::Cover *, ESPHOME_ENTITY_COVER_COUNT> covers_{};
#endif
#ifdef USE_CLIMATE
std::vector<climate::Climate *> climates_{};
StaticVector<climate::Climate *, ESPHOME_ENTITY_CLIMATE_COUNT> climates_{};
#endif
#ifdef USE_LIGHT
std::vector<light::LightState *> lights_{};
StaticVector<light::LightState *, ESPHOME_ENTITY_LIGHT_COUNT> lights_{};
#endif
#ifdef USE_NUMBER
std::vector<number::Number *> numbers_{};
StaticVector<number::Number *, ESPHOME_ENTITY_NUMBER_COUNT> numbers_{};
#endif
#ifdef USE_DATETIME_DATE
std::vector<datetime::DateEntity *> dates_{};
StaticVector<datetime::DateEntity *, ESPHOME_ENTITY_DATE_COUNT> dates_{};
#endif
#ifdef USE_DATETIME_TIME
std::vector<datetime::TimeEntity *> times_{};
StaticVector<datetime::TimeEntity *, ESPHOME_ENTITY_TIME_COUNT> times_{};
#endif
#ifdef USE_DATETIME_DATETIME
std::vector<datetime::DateTimeEntity *> datetimes_{};
StaticVector<datetime::DateTimeEntity *, ESPHOME_ENTITY_DATETIME_COUNT> datetimes_{};
#endif
#ifdef USE_SELECT
std::vector<select::Select *> selects_{};
StaticVector<select::Select *, ESPHOME_ENTITY_SELECT_COUNT> selects_{};
#endif
#ifdef USE_TEXT
std::vector<text::Text *> texts_{};
StaticVector<text::Text *, ESPHOME_ENTITY_TEXT_COUNT> texts_{};
#endif
#ifdef USE_LOCK
std::vector<lock::Lock *> locks_{};
StaticVector<lock::Lock *, ESPHOME_ENTITY_LOCK_COUNT> locks_{};
#endif
#ifdef USE_VALVE
std::vector<valve::Valve *> valves_{};
StaticVector<valve::Valve *, ESPHOME_ENTITY_VALVE_COUNT> valves_{};
#endif
#ifdef USE_MEDIA_PLAYER
std::vector<media_player::MediaPlayer *> media_players_{};
StaticVector<media_player::MediaPlayer *, ESPHOME_ENTITY_MEDIA_PLAYER_COUNT> media_players_{};
#endif
#ifdef USE_ALARM_CONTROL_PANEL
std::vector<alarm_control_panel::AlarmControlPanel *> alarm_control_panels_{};
StaticVector<alarm_control_panel::AlarmControlPanel *, ESPHOME_ENTITY_ALARM_CONTROL_PANEL_COUNT>
alarm_control_panels_{};
#endif
#ifdef USE_UPDATE
std::vector<update::UpdateEntity *> updates_{};
StaticVector<update::UpdateEntity *, ESPHOME_ENTITY_UPDATE_COUNT> updates_{};
#endif
#ifdef USE_SOCKET_SELECT_SUPPORT

13
esphome/core/component_iterator.cpp
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@@ -17,19 +17,6 @@ void ComponentIterator::begin(bool include_internal) {
this->include_internal_ = include_internal;
}
template<typename PlatformItem>
void ComponentIterator::process_platform_item_(const std::vector<PlatformItem *> &items,
bool (ComponentIterator::*on_item)(PlatformItem *)) {
if (this->at_ >= items.size()) {
this->advance_platform_();
} else {
PlatformItem *item = items[this->at_];
if ((item->is_internal() && !this->include_internal_) || (this->*on_item)(item)) {
this->at_++;
}
}
}
void ComponentIterator::advance_platform_() {
this->state_ = static_cast<IteratorState>(static_cast<uint32_t>(this->state_) + 1);
this->at_ = 0;

16
esphome/core/component_iterator.h
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@@ -172,9 +172,19 @@ class ComponentIterator {
uint16_t at_{0}; // Supports up to 65,535 entities per type
bool include_internal_{false};
template<typename PlatformItem>
void process_platform_item_(const std::vector<PlatformItem *> &items,
bool (ComponentIterator::*on_item)(PlatformItem *));
template<typename Container>
void process_platform_item_(const Container &items,
bool (ComponentIterator::*on_item)(typename Container::value_type)) {
if (this->at_ >= items.size()) {
this->advance_platform_();
} else {
typename Container::value_type item = items[this->at_];
if ((item->is_internal() && !this->include_internal_) || (this->*on_item)(item)) {
this->at_++;
}
}
}
void advance_platform_();
};

4
esphome/core/config.py
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@@ -421,8 +421,10 @@ async def _add_automations(config):
@coroutine_with_priority(-100.0)
async def _add_platform_reserves() -> None:
# Generate compile-time entity count defines for static_entity_vector
for platform_name, count in sorted(CORE.platform_counts.items()):
cg.add(cg.RawStatement(f"App.reserve_{platform_name}({count});"), prepend=True)
define_name = f"ESPHOME_ENTITY_{platform_name.upper()}_COUNT"
cg.add_define(define_name, count)
@coroutine_with_priority(100.0)

23
esphome/core/defines.h
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@@ -239,3 +239,26 @@
// #define USE_BSEC2 // Requires a library with proprietary license
#define USE_DASHBOARD_IMPORT
// Default entity counts for static analysis
#define ESPHOME_ENTITY_ALARM_CONTROL_PANEL_COUNT 1
#define ESPHOME_ENTITY_BINARY_SENSOR_COUNT 1
#define ESPHOME_ENTITY_BUTTON_COUNT 1
#define ESPHOME_ENTITY_CLIMATE_COUNT 1
#define ESPHOME_ENTITY_COVER_COUNT 1
#define ESPHOME_ENTITY_DATE_COUNT 1
#define ESPHOME_ENTITY_DATETIME_COUNT 1
#define ESPHOME_ENTITY_EVENT_COUNT 1
#define ESPHOME_ENTITY_FAN_COUNT 1
#define ESPHOME_ENTITY_LIGHT_COUNT 1
#define ESPHOME_ENTITY_LOCK_COUNT 1
#define ESPHOME_ENTITY_MEDIA_PLAYER_COUNT 1
#define ESPHOME_ENTITY_NUMBER_COUNT 1
#define ESPHOME_ENTITY_SELECT_COUNT 1
#define ESPHOME_ENTITY_SENSOR_COUNT 1
#define ESPHOME_ENTITY_SWITCH_COUNT 1
#define ESPHOME_ENTITY_TEXT_COUNT 1
#define ESPHOME_ENTITY_TEXT_SENSOR_COUNT 1
#define ESPHOME_ENTITY_TIME_COUNT 1
#define ESPHOME_ENTITY_UPDATE_COUNT 1
#define ESPHOME_ENTITY_VALVE_COUNT 1

36
esphome/core/helpers.h
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@@ -91,6 +91,42 @@ template<> constexpr int64_t byteswap(int64_t n) { return __builtin_bswap64(n);
///@}
/// @name Container utilities
///@{
/// Minimal static vector - saves memory by avoiding std::vector overhead
template<typename T, size_t N> class StaticVector {
public:
using value_type = T;
using iterator = typename std::array<T, N>::iterator;
using const_iterator = typename std::array<T, N>::const_iterator;
private:
std::array<T, N> data_{};
size_t count_{0};
public:
// Minimal vector-compatible interface - only what we actually use
void push_back(const T &value) {
if (count_ < N) {
data_[count_++] = value;
}
}
size_t size() const { return count_; }
T &operator[](size_t i) { return data_[i]; }
const T &operator[](size_t i) const { return data_[i]; }
// For range-based for loops
iterator begin() { return data_.begin(); }
iterator end() { return data_.begin() + count_; }
const_iterator begin() const { return data_.begin(); }
const_iterator end() const { return data_.begin() + count_; }
};
///@}
/// @name Mathematics
///@{