1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <aidl/android/hardware/gnss/BnGnssBatching.h> 20 #include <atomic> 21 #include <thread> 22 23 namespace aidl::android::hardware::gnss { 24 25 struct GnssBatching : public BnGnssBatching { 26 public: 27 GnssBatching(); 28 ~GnssBatching(); 29 ndk::ScopedAStatus init(const std::shared_ptr<IGnssBatchingCallback>& callback) override; 30 ndk::ScopedAStatus getBatchSize(int* size) override; 31 ndk::ScopedAStatus start(const Options& options) override; 32 ndk::ScopedAStatus flush() override; 33 ndk::ScopedAStatus stop() override; 34 ndk::ScopedAStatus cleanup() override; 35 36 private: 37 void batchLocation(const GnssLocation&); 38 39 // Guarded by mMutex 40 static std::shared_ptr<IGnssBatchingCallback> sCallback; 41 42 std::thread mThread; 43 std::atomic<bool> mIsActive; 44 std::atomic<long> mMinIntervalMs; 45 std::atomic<float> mMinDistanceMeters; 46 std::atomic<bool> mWakeUpOnFifoFull; 47 48 // Synchronization lock for sCallback 49 mutable std::mutex mMutex; 50 51 std::vector<GnssLocation> mBatchedLocations; 52 }; 53 54 } // namespace aidl::android::hardware::gnss 55