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Code Issues Releases Wiki Activity

Reduce memory required for sensor entities

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This commit is contained in:
J. Nick Koston
2025-06-25 14:17:05 +02:00
parent a35e476be5
commit 23774ae03b
4 changed files with 49 additions and 11 deletions
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18
esphome/components/sensor/sensor.cpp
View File

@@ -23,16 +23,22 @@ std::string state_class_to_string(StateClass state_class) {
Sensor::Sensor() : state(NAN), raw_state(NAN) {}
int8_t Sensor::get_accuracy_decimals() {
if (this->accuracy_decimals_.has_value())
return *this->accuracy_decimals_;
if (this->sensor_flags_.has_accuracy_override)
return this->accuracy_decimals_;
return 0;
}
void Sensor::set_accuracy_decimals(int8_t accuracy_decimals) { this->accuracy_decimals_ = accuracy_decimals; }
void Sensor::set_accuracy_decimals(int8_t accuracy_decimals) {
this->accuracy_decimals_ = accuracy_decimals;
this->sensor_flags_.has_accuracy_override = true;
}
void Sensor::set_state_class(StateClass state_class) { this->state_class_ = state_class; }
void Sensor::set_state_class(StateClass state_class) {
this->state_class_ = state_class;
this->sensor_flags_.has_state_class_override = true;
}
StateClass Sensor::get_state_class() {
if (this->state_class_.has_value())
return *this->state_class_;
if (this->sensor_flags_.has_state_class_override)
return this->state_class_;
return StateClass::STATE_CLASS_NONE;
}

18
esphome/components/sensor/sensor.h
View File

@@ -80,9 +80,9 @@ class Sensor : public EntityBase, public EntityBase_DeviceClass, public EntityBa
* state changes to the database when they are published, even if the state is the
* same as before.
*/
bool get_force_update() const { return force_update_; }
bool get_force_update() const { return sensor_flags_.force_update; }
/// Set force update mode.
void set_force_update(bool force_update) { force_update_ = force_update; }
void set_force_update(bool force_update) { sensor_flags_.force_update = force_update; }
/// Add a filter to the filter chain. Will be appended to the back.
void add_filter(Filter *filter);
@@ -155,9 +155,17 @@ class Sensor : public EntityBase, public EntityBase_DeviceClass, public EntityBa
Filter *filter_list_{nullptr}; ///< Store all active filters.
optional<int8_t> accuracy_decimals_; ///< Accuracy in decimals override
optional<StateClass> state_class_{STATE_CLASS_NONE}; ///< State class override
bool force_update_{false}; ///< Force update mode
// Group small members together to avoid padding
int8_t accuracy_decimals_{-1}; ///< Accuracy in decimals (-1 = not set)
StateClass state_class_{STATE_CLASS_NONE}; ///< State class (STATE_CLASS_NONE = not set)
// Bit-packed flags for sensor-specific settings
struct SensorFlags {
uint8_t has_accuracy_override : 1;
uint8_t has_state_class_override : 1;
uint8_t force_update : 1;
uint8_t reserved : 5; // Reserved for future use
} sensor_flags_{};
};
} // namespace sensor