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      1 /*
      2  * Copyright (C) 2017 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 #ifndef ANDROID_SENSORHAL_EXT_DUMMY_DYNAMIC_ACCEL_DAEMON_H
     18 #define ANDROID_SENSORHAL_EXT_DUMMY_DYNAMIC_ACCEL_DAEMON_H
     19 
     20 #include "BaseDynamicSensorDaemon.h"
     21 #include "BaseSensorObject.h"
     22 
     23 #include <hardware/sensors.h>
     24 #include <utils/Thread.h>
     25 #include <mutex>
     26 #include <unordered_set>
     27 
     28 namespace android {
     29 namespace SensorHalExt {
     30 
     31 class ConnectionDetector;
     32 
     33 /**
     34  * This daemon simulates dynamic sensor connection without the need of actually connect peripheral
     35  * to Android. It is for debugging and testing. It can handle one concurrent connections at maximum.
     36  */
     37 class DummyDynamicAccelDaemon : public BaseDynamicSensorDaemon {
     38 public:
     39     DummyDynamicAccelDaemon(DynamicSensorManager& manager);
     40     virtual ~DummyDynamicAccelDaemon() = default;
     41 private:
     42     class DummySensor : public BaseSensorObject, public Thread {
     43     public:
     44         DummySensor(const std::string &name);
     45         ~DummySensor();
     46         virtual const sensor_t* getSensor() const;
     47         virtual void getUuid(uint8_t* uuid) const;
     48         virtual int enable(bool enable);
     49         virtual int batch(nsecs_t sample_period, nsecs_t batch_period);
     50     private:
     51         // implement Thread function
     52         virtual bool threadLoop() override;
     53 
     54         void waitUntilNextSample();
     55 
     56         sensor_t mSensor;
     57         std::string mSensorName;
     58 
     59         std::mutex mLock;
     60         std::mutex mRunLock;
     61         bool mRunState;
     62     };
     63     // implement BaseDynamicSensorDaemon function
     64     virtual BaseSensorVector createSensor(const std::string &deviceKey) override;
     65 
     66     sp<ConnectionDetector> mFileDetector;
     67     sp<ConnectionDetector> mSocketDetector;
     68 };
     69 } // namespace SensorHalExt
     70 } // namespace android
     71 
     72 #endif // ANDROID_SENSORHAL_EXT_DYNAMIC_SENSOR_DAEMON_H
     73 
     74