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https://github.com/esphome/esphome.git
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82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/core/automation.h"
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#include "esphome/core/helpers.h"
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#include <cstring>
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namespace esphome {
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namespace globals {
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template<typename T> class GlobalsComponent : public Component {
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public:
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using value_type = T;
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explicit GlobalsComponent() = default;
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explicit GlobalsComponent(T initial_value) : value_(initial_value) {}
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explicit GlobalsComponent(std::array<typename std::remove_extent<T>::type, std::extent<T>::value> initial_value) {
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memcpy(this->value_, initial_value.data(), sizeof(T));
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}
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T &value() { return this->value_; }
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void setup() override {}
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protected:
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T value_{};
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};
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template<typename T> class RestoringGlobalsComponent : public Component {
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public:
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using value_type = T;
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explicit RestoringGlobalsComponent() = default;
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explicit RestoringGlobalsComponent(T initial_value) : value_(initial_value) {}
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explicit RestoringGlobalsComponent(
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std::array<typename std::remove_extent<T>::type, std::extent<T>::value> initial_value) {
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memcpy(this->value_, initial_value.data(), sizeof(T));
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}
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T &value() { return this->value_; }
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void setup() override {
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this->rtc_ = global_preferences->make_preference<T>(1944399030U ^ this->name_hash_);
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this->rtc_.load(&this->value_);
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memcpy(&this->prev_value_, &this->value_, sizeof(T));
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}
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float get_setup_priority() const override { return setup_priority::HARDWARE; }
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void loop() override {
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int diff = memcmp(&this->value_, &this->prev_value_, sizeof(T));
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if (diff != 0) {
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this->rtc_.save(&this->value_);
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memcpy(&this->prev_value_, &this->value_, sizeof(T));
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}
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}
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void set_name_hash(uint32_t name_hash) { this->name_hash_ = name_hash; }
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protected:
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T value_{};
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T prev_value_{};
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uint32_t name_hash_{};
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ESPPreferenceObject rtc_;
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};
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template<class C, typename... Ts> class GlobalVarSetAction : public Action<Ts...> {
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public:
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explicit GlobalVarSetAction(C *parent) : parent_(parent) {}
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using T = typename C::value_type;
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TEMPLATABLE_VALUE(T, value);
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void play(Ts... x) override { this->parent_->value() = this->value_.value(x...); }
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protected:
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C *parent_;
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};
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template<typename T> T &id(GlobalsComponent<T> *value) { return value->value(); }
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template<typename T> T &id(RestoringGlobalsComponent<T> *value) { return value->value(); }
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} // namespace globals
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} // namespace esphome
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