1 /* 2 * Copyright (C) 2020 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/BnGnssMeasurementCallback.h> 20 #include <aidl/android/hardware/gnss/BnGnssMeasurementInterface.h> 21 #include <atomic> 22 #include <future> 23 #include <mutex> 24 #include <thread> 25 #include "Utils.h" 26 27 namespace aidl::android::hardware::gnss { 28 29 struct GnssMeasurementInterface : public BnGnssMeasurementInterface { 30 public: 31 GnssMeasurementInterface(); 32 ~GnssMeasurementInterface(); 33 ndk::ScopedAStatus setCallback(const std::shared_ptr<IGnssMeasurementCallback>& callback, 34 const bool enableFullTracking, 35 const bool enableCorrVecOutputs) override; 36 ndk::ScopedAStatus close() override; 37 ndk::ScopedAStatus setCallbackWithOptions( 38 const std::shared_ptr<IGnssMeasurementCallback>& callback, 39 const Options& options) override; 40 void setLocationInterval(const int intervalMs); 41 void setLocationEnabled(const bool enabled); 42 43 private: 44 void start(const bool enableCorrVecOutputs); 45 void stop(); 46 void reportMeasurement(const GnssData&); 47 void waitForStoppingThreads(); 48 49 std::atomic<long> mIntervalMs; 50 std::atomic<long> mLocationIntervalMs; 51 std::atomic<bool> mIsActive; 52 std::atomic<bool> mLocationEnabled; 53 std::thread mThread; 54 std::vector<std::future<void>> mFutures; 55 ::android::hardware::gnss::common::ThreadBlocker mThreadBlocker; 56 57 // Guarded by mMutex 58 static std::shared_ptr<IGnssMeasurementCallback> sCallback; 59 60 // Synchronization lock for sCallback 61 mutable std::mutex mMutex; 62 }; 63 64 } // namespace aidl::android::hardware::gnss 65