78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <memory>
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#include <optional>
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#include <aidl/android/hardware/health/IHealth.h>
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#include <health/HealthLoop.h>
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namespace aidl::android::hardware::health {
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class HalHealthLoop;
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class HalHealthLoopCallback {
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public:
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virtual ~HalHealthLoopCallback() = default;
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// Called by HalHealthLoop::Init
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virtual void OnInit(HalHealthLoop* hal_health_loop, struct healthd_config* config) = 0;
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// Called by HalHealthLoop::Heartbeat
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virtual void OnHeartbeat(){};
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// Called by HalHealthLoop::PrepareToWait
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virtual int OnPrepareToWait() { return -1; }
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// Called by HalHealthLoop::ScheduleBatteryUpdate
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virtual void OnHealthInfoChanged(const HealthInfo&) {}
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};
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// AIDL version of android::hardware::health::V2_1::implementation::HalHealthLoop.
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// An implementation of HealthLoop for using a given health HAL.
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class HalHealthLoop final : public ::android::hardware::health::HealthLoop {
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public:
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// Caller must ensure that the lifetime of service_ is not shorter than this object.
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HalHealthLoop(std::shared_ptr<IHealth> service, std::shared_ptr<HalHealthLoopCallback> callback)
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: service_(std::move(service)), callback_(std::move(callback)) {}
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using HealthLoop::RegisterEvent;
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bool charger_online() const { return charger_online_; }
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protected:
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virtual void Init(struct healthd_config* config) override;
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virtual void Heartbeat() override;
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virtual int PrepareToWait() override;
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virtual void ScheduleBatteryUpdate() override;
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private:
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std::shared_ptr<IHealth> service_;
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std::shared_ptr<HalHealthLoopCallback> callback_;
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bool charger_online_ = false;
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// Helpers of OnHealthInfoChanged.
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void set_charger_online(const HealthInfo& health_info);
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// HealthLoop periodically calls ScheduleBatteryUpdate, which calls
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// OnHealthInfoChanged callback. A subclass of the callback can override
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// HalHealthLoopCallback::OnHealthInfoChanged to
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// broadcast the health_info to interested listeners.
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// This adjust uevents / wakealarm periods.
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void OnHealthInfoChanged(const HealthInfo& health_info);
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};
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} // namespace aidl::android::hardware::health
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