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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <optional>
#include <android/hardware/health/2.1/IHealth.h>
#include <health/HealthLoop.h>
namespace android {
namespace hardware {
namespace health {
namespace V2_1 {
namespace implementation {
// An implementation of HealthLoop for using a given health HAL. This is useful
// for services that opens the passthrough implementation and starts the HealthLoop
// to periodically poll data from the implementation.
class HalHealthLoop : public HealthLoop {
public:
HalHealthLoop(const std::string& name, const sp<IHealth>& service)
: instance_name_(name), service_(service) {}
protected:
virtual void Init(struct healthd_config* config) override;
virtual void Heartbeat() override;
virtual int PrepareToWait() override;
virtual void ScheduleBatteryUpdate() override;
// HealthLoop periodically calls ScheduleBatteryUpdate, which calls
// OnHealthInfoChanged callback. A client can override this function to
// broadcast the health_info to interested listeners. By default, this
// adjust uevents / wakealarm periods.
virtual void OnHealthInfoChanged(const HealthInfo& health_info);
const std::string& instance_name() const { return instance_name_; }
const sp<IHealth>& service() const { return service_; }
bool charger_online() const { return charger_online_; }
// Helpers for subclasses to implement OnHealthInfoChanged.
void set_charger_online(const HealthInfo& health_info);
private:
std::string instance_name_;
sp<IHealth> service_;
bool charger_online_ = false;
};
} // namespace implementation
} // namespace V2_1
} // namespace health
} // namespace hardware
} // namespace android