1 /*
2  * Copyright (c) 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_POWER_POLICY_H
17 #define SENSOR_POWER_POLICY_H
18 
19 #include <mutex>
20 #include <unordered_map>
21 #include <vector>
22 
23 #include "nocopyable.h"
24 
25 #include "active_info.h"
26 #include "client_info.h"
27 #include "sensor_errors.h"
28 #include "sensor_manager.h"
29 #include "stream_session.h"
30 #ifdef HDF_DRIVERS_INTERFACE_SENSOR
31 #include "sensor_hdi_connection.h"
32 #endif // HDF_DRIVERS_INTERFACE_SENSOR
33 
34 namespace OHOS {
35 namespace Sensors {
36 class SensorPowerPolicy : public Singleton<SensorPowerPolicy> {
37 public:
38     ErrCode SuspendSensors(int32_t pid);
39     ErrCode ResumeSensors(int32_t pid);
40     ErrCode ResetSensors();
41     std::vector<ActiveInfo> GetActiveInfoList(int32_t pid);
42     void ReportActiveInfo(const ActiveInfo &activeInfo, const std::vector<SessionPtr> &sessionList);
43 
44 private:
45     bool CheckFreezingSensor(int32_t sensorId);
46     bool Suspend(int32_t pid, const std::vector<int32_t> &sensorIdList,
47         std::unordered_map<int32_t, SensorBasicInfo> &SensorInfoMap);
48     bool Resume(int32_t pid, int32_t sensorId, int64_t samplingPeriodNs, int64_t maxReportDelayNs);
49     ErrCode RestoreSensorInfo(int32_t pid, int32_t sensorId, int64_t samplingPeriodNs, int64_t maxReportDelayNs);
50     std::vector<int32_t> GetSuspendPidList();
51     std::mutex pidSensorInfoMutex_;
52     std::unordered_map<int32_t, std::unordered_map<int32_t, SensorBasicInfo>> pidSensorInfoMap_;
53 };
54 } // namespace Sensors
55 } // namespace OHOS
56 #endif // SENSOR_POWER_POLICY_H