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[ld24xx] Replace heap-allocated SensorWithDedup with inline LazySensorWithDedup

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Replace heap-allocated SensorWithDedup wrapper with inline
LazySensorWithDedup that stores the sensor pointer and deduplicator
directly in the component, eliminating heap allocations and reducing
RAM usage for configured sensors.
This commit is contained in:
J. Nick Koston
2026-04-12 11:04:17 -10:00
parent bef4c8a86c
commit 66a3e3a705
7 changed files with 51 additions and 50 deletions
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esphome/components/ld2410/ld2410.cpp
+2 -3
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@@ -786,13 +786,12 @@ void LD2410Component::set_light_out_control() {
}
#ifdef USE_SENSOR
// These could leak memory, but they are only set once prior to 'setup()' and should never be used again.
void LD2410Component::set_gate_move_sensor(uint8_t gate, sensor::Sensor *s) {
this->gate_move_sensors_[gate] = new SensorWithDedup<uint8_t>(s);
this->gate_move_sensors_[gate].set_sensor(s);
}
void LD2410Component::set_gate_still_sensor(uint8_t gate, sensor::Sensor *s) {
this->gate_still_sensors_[gate] = new SensorWithDedup<uint8_t>(s);
this->gate_still_sensors_[gate].set_sensor(s);
}
#endif
esphome/components/ld2410/ld2410.h
+2 -2
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@@ -129,8 +129,8 @@ class LD2410Component : public Component, public uart::UARTDevice {
std::array<number::Number *, TOTAL_GATES> gate_still_threshold_numbers_{};
#endif
#ifdef USE_SENSOR
std::array<SensorWithDedup<uint8_t> *, TOTAL_GATES> gate_move_sensors_{};
std::array<SensorWithDedup<uint8_t> *, TOTAL_GATES> gate_still_sensors_{};
std::array<LazySensorWithDedup<uint8_t>, TOTAL_GATES> gate_move_sensors_{};
std::array<LazySensorWithDedup<uint8_t>, TOTAL_GATES> gate_still_sensors_{};
#endif
};
esphome/components/ld2412/ld2412.cpp
+4 -5
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@@ -402,7 +402,7 @@ void LD2412Component::handle_periodic_data_() {
SAFE_PUBLISH_SENSOR(this->still_target_distance_sensor_,
encode_uint16(this->buffer_data_[STILL_TARGET_HIGH], this->buffer_data_[STILL_TARGET_LOW]))
SAFE_PUBLISH_SENSOR(this->still_target_energy_sensor_, this->buffer_data_[STILL_ENERGY])
if (this->detection_distance_sensor_ != nullptr) {
if (this->detection_distance_sensor_.has_sensor()) {
int new_detect_distance = 0;
if (target_state != 0x00 && (target_state & MOVE_BITMASK)) {
new_detect_distance =
@@ -410,7 +410,7 @@ void LD2412Component::handle_periodic_data_() {
} else if (target_state != 0x00) {
new_detect_distance = encode_uint16(this->buffer_data_[STILL_TARGET_HIGH], this->buffer_data_[STILL_TARGET_LOW]);
}
this->detection_distance_sensor_->publish_state_if_not_dup(new_detect_distance);
this->detection_distance_sensor_.publish_state_if_not_dup(new_detect_distance);
}
if (engineering_mode) {
// Engineering mode needs at least LIGHT_SENSOR + 1 bytes
@@ -846,12 +846,11 @@ void LD2412Component::set_light_out_control() {
}
#ifdef USE_SENSOR
// These could leak memory, but they are only set once prior to 'setup()' and should never be used again.
void LD2412Component::set_gate_move_sensor(uint8_t gate, sensor::Sensor *s) {
this->gate_move_sensors_[gate] = new SensorWithDedup<uint8_t>(s);
this->gate_move_sensors_[gate].set_sensor(s);
}
void LD2412Component::set_gate_still_sensor(uint8_t gate, sensor::Sensor *s) {
this->gate_still_sensors_[gate] = new SensorWithDedup<uint8_t>(s);
this->gate_still_sensors_[gate].set_sensor(s);
}
#endif
esphome/components/ld2412/ld2412.h
+2 -2
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@@ -133,8 +133,8 @@ class LD2412Component : public Component, public uart::UARTDevice {
std::array<number::Number *, TOTAL_GATES> gate_still_threshold_numbers_{};
#endif
#ifdef USE_SENSOR
std::array<SensorWithDedup<uint8_t> *, TOTAL_GATES> gate_move_sensors_{};
std::array<SensorWithDedup<uint8_t> *, TOTAL_GATES> gate_still_sensors_{};
std::array<LazySensorWithDedup<uint8_t>, TOTAL_GATES> gate_move_sensors_{};
std::array<LazySensorWithDedup<uint8_t>, TOTAL_GATES> gate_still_sensors_{};
#endif
};
esphome/components/ld2450/ld2450.cpp
+9 -10
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@@ -872,33 +872,32 @@ void LD2450Component::query_target_tracking_mode_() { this->send_command_(CMD_QU
void LD2450Component::query_zone_() { this->send_command_(CMD_QUERY_ZONE, nullptr, 0); }
#ifdef USE_SENSOR
// These could leak memory, but they are only set once prior to 'setup()' and should never be used again.
void LD2450Component::set_move_x_sensor(uint8_t target, sensor::Sensor *s) {
this->move_x_sensors_[target] = new SensorWithDedup<int16_t>(s);
this->move_x_sensors_[target].set_sensor(s);
}
void LD2450Component::set_move_y_sensor(uint8_t target, sensor::Sensor *s) {
this->move_y_sensors_[target] = new SensorWithDedup<int16_t>(s);
this->move_y_sensors_[target].set_sensor(s);
}
void LD2450Component::set_move_speed_sensor(uint8_t target, sensor::Sensor *s) {
this->move_speed_sensors_[target] = new SensorWithDedup<int16_t>(s);
this->move_speed_sensors_[target].set_sensor(s);
}
void LD2450Component::set_move_angle_sensor(uint8_t target, sensor::Sensor *s) {
this->move_angle_sensors_[target] = new SensorWithDedup<float>(s);
this->move_angle_sensors_[target].set_sensor(s);
}
void LD2450Component::set_move_distance_sensor(uint8_t target, sensor::Sensor *s) {
this->move_distance_sensors_[target] = new SensorWithDedup<uint16_t>(s);
this->move_distance_sensors_[target].set_sensor(s);
}
void LD2450Component::set_move_resolution_sensor(uint8_t target, sensor::Sensor *s) {
this->move_resolution_sensors_[target] = new SensorWithDedup<uint16_t>(s);
this->move_resolution_sensors_[target].set_sensor(s);
}
void LD2450Component::set_zone_target_count_sensor(uint8_t zone, sensor::Sensor *s) {
this->zone_target_count_sensors_[zone] = new SensorWithDedup<uint8_t>(s);
this->zone_target_count_sensors_[zone].set_sensor(s);
}
void LD2450Component::set_zone_still_target_count_sensor(uint8_t zone, sensor::Sensor *s) {
this->zone_still_target_count_sensors_[zone] = new SensorWithDedup<uint8_t>(s);
this->zone_still_target_count_sensors_[zone].set_sensor(s);
}
void LD2450Component::set_zone_moving_target_count_sensor(uint8_t zone, sensor::Sensor *s) {
this->zone_moving_target_count_sensors_[zone] = new SensorWithDedup<uint8_t>(s);
this->zone_moving_target_count_sensors_[zone].set_sensor(s);
}
#endif
#ifdef USE_TEXT_SENSOR
esphome/components/ld2450/ld2450.h
+9 -9
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@@ -182,15 +182,15 @@ class LD2450Component : public Component, public uart::UARTDevice {
ZoneOfNumbers zone_numbers_[MAX_ZONES];
#endif
#ifdef USE_SENSOR
std::array<SensorWithDedup<int16_t> *, MAX_TARGETS> move_x_sensors_{};
std::array<SensorWithDedup<int16_t> *, MAX_TARGETS> move_y_sensors_{};
std::array<SensorWithDedup<int16_t> *, MAX_TARGETS> move_speed_sensors_{};
std::array<SensorWithDedup<float> *, MAX_TARGETS> move_angle_sensors_{};
std::array<SensorWithDedup<uint16_t> *, MAX_TARGETS> move_distance_sensors_{};
std::array<SensorWithDedup<uint16_t> *, MAX_TARGETS> move_resolution_sensors_{};
std::array<SensorWithDedup<uint8_t> *, MAX_ZONES> zone_target_count_sensors_{};
std::array<SensorWithDedup<uint8_t> *, MAX_ZONES> zone_still_target_count_sensors_{};
std::array<SensorWithDedup<uint8_t> *, MAX_ZONES> zone_moving_target_count_sensors_{};
std::array<LazySensorWithDedup<int16_t>, MAX_TARGETS> move_x_sensors_{};
std::array<LazySensorWithDedup<int16_t>, MAX_TARGETS> move_y_sensors_{};
std::array<LazySensorWithDedup<int16_t>, MAX_TARGETS> move_speed_sensors_{};
std::array<LazySensorWithDedup<float>, MAX_TARGETS> move_angle_sensors_{};
std::array<LazySensorWithDedup<uint16_t>, MAX_TARGETS> move_distance_sensors_{};
std::array<LazySensorWithDedup<uint16_t>, MAX_TARGETS> move_resolution_sensors_{};
std::array<LazySensorWithDedup<uint8_t>, MAX_ZONES> zone_target_count_sensors_{};
std::array<LazySensorWithDedup<uint8_t>, MAX_ZONES> zone_still_target_count_sensors_{};
std::array<LazySensorWithDedup<uint8_t>, MAX_ZONES> zone_moving_target_count_sensors_{};
#endif
#ifdef USE_TEXT_SENSOR
std::array<text_sensor::TextSensor *, MAX_TARGETS> direction_text_sensors_{};
esphome/components/ld24xx/ld24xx.h
+23 -19
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@@ -11,27 +11,25 @@
#define SUB_SENSOR_WITH_DEDUP(name, dedup_type) \
protected: \
ld24xx::SensorWithDedup<dedup_type> *name##_sensor_{nullptr}; \
ld24xx::LazySensorWithDedup<dedup_type> name##_sensor_{}; \
\
public: \
void set_##name##_sensor(sensor::Sensor *sensor) { \
this->name##_sensor_ = new ld24xx::SensorWithDedup<dedup_type>(sensor); \
}
void set_##name##_sensor(sensor::Sensor *sensor) { this->name##_sensor_.set_sensor(sensor); }
#endif
#define LOG_SENSOR_WITH_DEDUP_SAFE(tag, name, sensor) \
if ((sensor) != nullptr) { \
LOG_SENSOR(tag, name, (sensor)->sens); \
if ((sensor).has_sensor()) { \
LOG_SENSOR(tag, name, (sensor).get_sensor()); \
}
#define SAFE_PUBLISH_SENSOR(sensor, value) \
if ((sensor) != nullptr) { \
(sensor)->publish_state_if_not_dup(value); \
if (true) { \
(sensor).publish_state_if_not_dup(value); \
}
#define SAFE_PUBLISH_SENSOR_UNKNOWN(sensor) \
if ((sensor) != nullptr) { \
(sensor)->publish_state_unknown(); \
if (true) { \
(sensor).publish_state_unknown(); \
}
#define highbyte(val) (uint8_t)((val) >> 8)
@@ -70,25 +68,31 @@ inline void format_version_str(const uint8_t *version, std::span<char, 20> buffe
}
#ifdef USE_SENSOR
// Helper class to store a sensor with a deduplicator & publish state only when the value changes
template<typename T> class SensorWithDedup {
/// Sensor with deduplication — sensor may be null, null check is internal.
/// Analogous to LazyCallbackManager: does nothing when no sensor is set,
/// avoids heap allocation by storing everything inline.
template<typename T> class LazySensorWithDedup {
public:
SensorWithDedup(sensor::Sensor *sens) : sens(sens) {}
void set_sensor(sensor::Sensor *sens) { this->sens_ = sens; }
void publish_state_if_not_dup(T state) {
if (this->publish_dedup.next(state)) {
this->sens->publish_state(static_cast<float>(state));
if (this->sens_ != nullptr && this->dedup_.next(state)) {
this->sens_->publish_state(static_cast<float>(state));
}
}
void publish_state_unknown() {
if (this->publish_dedup.next_unknown()) {
this->sens->publish_state(NAN);
if (this->sens_ != nullptr && this->dedup_.next_unknown()) {
this->sens_->publish_state(NAN);
}
}
sensor::Sensor *sens;
Deduplicator<T> publish_dedup;
bool has_sensor() const { return this->sens_ != nullptr; }
sensor::Sensor *get_sensor() const { return this->sens_; }
protected:
sensor::Sensor *sens_{nullptr};
Deduplicator<T> dedup_;
};
#endif
} // namespace esphome::ld24xx