diff options
Diffstat (limited to 'hal/sensors/2.1/SensorThread.h')
-rw-r--r-- | hal/sensors/2.1/SensorThread.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/hal/sensors/2.1/SensorThread.h b/hal/sensors/2.1/SensorThread.h new file mode 100644 index 0000000..e0cf3ce --- /dev/null +++ b/hal/sensors/2.1/SensorThread.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2021 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 <condition_variable> +#include <mutex> +#include <thread> + +namespace android::hardware::sensors::V2_1::subhal::implementation { + +class SensorBase; + +class SensorThread { + public: + explicit SensorThread(SensorBase*); + ~SensorThread(); + + void notifyAll(); + void start(); + void stop(); + std::unique_lock<std::mutex> lock(); + void join(); + + bool isStopped() const; + + template <typename Predicate> + void wait(Predicate p) { + auto lck(lock()); + mWaitCV.wait(lck, p); + } + + private: + SensorBase* mSensor; + std::atomic_bool mStopThread; + std::condition_variable mWaitCV; + std::mutex mRunMutex; + std::thread mThread; +}; + +} // namespace android::hardware::sensors::V2_1::subhal::implementation |