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 #include "SensorThread.h" 18 #include "Sensor.h" 19 20 namespace android::hardware::sensors::V2_0::subhal::implementation { 21 SensorThread(SensorBase * sensor)22SensorThread::SensorThread(SensorBase* sensor) 23 : mSensor(sensor), mStopThread(false), mWaitCV(), mRunMutex() {} 24 start()25void SensorThread::start() { 26 mThread = std::thread([this]() -> void { 27 if (mSensor) { 28 while (!mStopThread) { 29 mSensor->pollSensor(); 30 } 31 } 32 }); 33 } 34 ~SensorThread()35SensorThread::~SensorThread() { 36 { 37 std::unique_lock<std::mutex> lck(lock()); 38 stop(); 39 notifyAll(); 40 } 41 join(); 42 } 43 isStopped() const44bool SensorThread::isStopped() const { 45 return mStopThread; 46 } 47 join()48void SensorThread::join() { 49 mThread.join(); 50 } 51 notifyAll()52void SensorThread::notifyAll() { 53 mWaitCV.notify_all(); 54 } 55 stop()56void SensorThread::stop() { 57 mStopThread = true; 58 } 59 lock()60std::unique_lock<std::mutex> SensorThread::lock() { 61 return std::move(std::unique_lock<std::mutex>(mRunMutex)); 62 } 63 64 } // namespace android::hardware::sensors::V2_0::subhal::implementation 65