1 /*
2  * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef SENSOR_DATA_CALLBACK_H
17 #define SENSOR_DATA_CALLBACK_H
18 
19 #ifdef DEVICE_STATUS_SENSOR_ENABLE
20 #include <atomic>
21 #include <list>
22 #include <map>
23 #include <mutex>
24 #include <thread>
25 
26 #include "semaphore.h"
27 #include "singleton.h"
28 #include "sensor_agent.h"
29 #include "sensor_agent_type.h"
30 
31 #include "devicestatus_data_define.h"
32 
33 namespace OHOS {
34 namespace Msdp {
35 namespace DeviceStatus {
36 class SensorDataCallback final {
37     DECLARE_SINGLETON(SensorDataCallback);
38 public:
39     bool RegisterCallbackSensor(int32_t sensorTypeId);
40     bool UnregisterCallbackSensor(int32_t sensorTypeId);
41     void Init();
42     bool Unregister();
43     bool SubscribeSensorEvent(int32_t sensorTypeId, SensorCallback callback);
44     bool UnsubscribeSensorEvent(int32_t sensorTypeId, SensorCallback callback);
45     bool PushData(int32_t sensorTypeId, uint8_t* data);
46 
47 private:
48     bool PopData(int32_t sensorTypeId, AccelData& data);
49     void AlgorithmLoop();
50     void HandleSensorEvent();
51     bool NotifyCallback(int32_t sensorTypeId, AccelData* data);
52 
53     struct SensorUser user_ = {.name = {0}, .callback = nullptr, .userData = nullptr};
54     std::list<AccelData> accelDataList_;
55     std::unique_ptr<std::thread> algorithmThread_ { nullptr };
56     sem_t sem_ = {};
57     std::mutex callbackMutex_;
58     std::mutex dataMutex_;
59     std::mutex initMutex_;
60     std::mutex sensorMutex_;
61     std::atomic<bool> alive_ { true };
62     std::map<int32_t, SensorCallback> algoMap_;
63 };
64 #define SENSOR_DATA_CB OHOS::Singleton<SensorDataCallback>::GetInstance()
65 } // namespace DeviceStatus
66 } // namespace Msdp
67 } // namespace OHOS
68 #endif // DEVICE_STATUS_SENSOR_ENABLE
69 #endif // SENSOR_DATA_CALLBACK_H
70 
71