powerstats/include/AocTimedStateResidencyDataProvider.h

/*
 * Copyright (C) 2022 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 "AocStateResidencyDataProvider.h"

#include <condition_variable>
#include <mutex>
#include <thread>
#include <PowerStatsAidl.h>

namespace aidl {
namespace android {
namespace hardware {
namespace power {
namespace stats {

enum AsyncStatus {
  COMPLETED,
  RUN,
  RUNNING
};

class AocTimedStateResidencyDataProvider : public AocStateResidencyDataProvider {
 public:
  AocTimedStateResidencyDataProvider(
      std::vector<std::pair<std::string, std::string>> ids,
      std::vector<std::pair<std::string, std::string>> states,
      const uint64_t timeoutMillis,
      const uint64_t aocClock);
  ~AocTimedStateResidencyDataProvider() = default;

  bool getStateResidencies(
      std::unordered_map<std::string, std::vector<StateResidency>> *residencies) override;

 private:
  void getStateResidenciesAsync();

  uint64_t mTimeoutMillis;
  std::thread mAsyncThread;
  std::mutex mStatusMutex;
  std::condition_variable mRunCond;
  std::condition_variable mCompletedCond;
  std::unordered_map<std::string, std::vector<StateResidency>> mStateResidencies;
  AsyncStatus mAsyncStatus;
};

}  // namespace stats
}  // namespace power
}  // namespace hardware
}  // namespace android
}  // namespace aidl