sensors_hal_proxy.h

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/*
 * Copyright (C) 2025 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 <atomic>
#include <mutex>
#include <thread>
 
#include "cuttlefish/common/libs/sensors/sensors.h"
#include "cuttlefish/common/libs/transport/channel_sharedfd.h"
#include "cuttlefish/common/libs/utils/device_type.h"
#include "cuttlefish/host/commands/kernel_log_monitor/kernel_log_server.h"
#include "cuttlefish/host/commands/kernel_log_monitor/utils.h"
#include "cuttlefish/host/commands/sensors_simulator/sensors_simulator.h"
 
namespace cuttlefish {
namespace sensors {
 
class SensorsHalProxy {
 public:
  SensorsHalProxy(SharedFD control_from_guest_fd, SharedFD control_to_guest_fd,
                  SharedFD data_from_guest_fd, SharedFD data_to_guest_fd,
                  SharedFD kernel_events_fd,
                  SensorsSimulator& sensors_simulator, DeviceType device_type);
 
 private:
  void ReportToGuest(SensorsMask mask);
 
  std::thread req_responder_thread_;
  std::thread data_reporter_thread_;
  std::thread reboot_monitor_thread_;
  transport::SharedFdChannel control_channel_;
  transport::SharedFdChannel data_channel_;
  SharedFD kernel_events_fd_;
  SensorsSimulator& sensors_simulator_;
  std::atomic<bool> hal_activated_ = false;
  std::atomic<bool> running_ = true;
  std::mutex report_mtx_;
};
 
}  // namespace sensors
}  // namespace cuttlefish