1 /* 2 * Copyright (c) 2021-2023 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_SERVICE_H 17 #define SENSOR_SERVICE_H 18 19 #include "system_ability.h" 20 21 #include "death_recipient_template.h" 22 #include "sensor_delayed_sp_singleton.h" 23 #include "sensor_power_policy.h" 24 #include "sensor_service_stub.h" 25 #include "stream_server.h" 26 #ifdef HDF_DRIVERS_INTERFACE_SENSOR 27 #include "sensor_hdi_connection.h" 28 #endif // HDF_DRIVERS_INTERFACE_SENSOR 29 30 namespace OHOS { 31 namespace Sensors { 32 enum class SensorServiceState { 33 STATE_STOPPED, 34 STATE_RUNNING, 35 }; 36 37 class SensorService : public SystemAbility, public StreamServer, public SensorServiceStub { 38 DECLARE_SYSTEM_ABILITY(SensorService) 39 SENSOR_DECLARE_DELAYED_SP_SINGLETON(SensorService); 40 41 public: 42 void OnDump() override; 43 void OnStart() override; 44 void OnStop() override; 45 int Dump(int fd, const std::vector<std::u16string> &args) override; 46 ErrCode EnableSensor(const SensorDescriptionIPC &sensorDesc, int64_t samplingPeriodNs, 47 int64_t maxReportDelayNs) override; 48 ErrCode DisableSensor(const SensorDescriptionIPC &sensorDesc) override; 49 ErrCode GetSensorList(std::vector<Sensor> &sensorList) override; 50 ErrCode GetSensorListByDevice(int32_t deviceId, std::vector<Sensor> &sensorList) override; 51 ErrCode TransferDataChannel(int32_t sendFd, const sptr<IRemoteObject> &sensorClient) override; 52 ErrCode DestroySensorChannel(const sptr<IRemoteObject> &sensorClient) override; 53 void ProcessDeathObserver(const wptr<IRemoteObject> &object); 54 ErrCode SuspendSensors(int32_t pid) override; 55 ErrCode ResumeSensors(int32_t pid) override; 56 ErrCode GetActiveInfoList(int32_t pid, std::vector<ActiveInfo> &activeInfoList) override; 57 ErrCode CreateSocketChannel(const sptr<IRemoteObject> &sensorClient, int32_t &clientFd) override; 58 ErrCode DestroySocketChannel(const sptr<IRemoteObject> &sensorClient) override; 59 ErrCode EnableActiveInfoCB() override; 60 ErrCode DisableActiveInfoCB() override; 61 ErrCode ResetSensors() override; 62 ErrCode SetDeviceStatus(uint32_t deviceStatus) override; 63 ErrCode TransferClientRemoteObject(const sptr<IRemoteObject> &sensorClient) override; 64 ErrCode DestroyClientRemoteObject(const sptr<IRemoteObject> &sensorClient) override; 65 66 private: 67 DISALLOW_COPY_AND_MOVE(SensorService); 68 std::vector<Sensor> GetSensorList(); 69 std::vector<Sensor> GetSensorListByDevice(int32_t deviceId); 70 void OnAddSystemAbility(int32_t systemAbilityId, const std::string &deviceId) override; 71 void OnRemoveSystemAbility(int32_t systemAbilityId, const std::string &deviceId) override; 72 ErrCode CheckAuthAndParameter(const SensorDescription &sensorDesc, int64_t samplingPeriodNs, 73 int64_t maxReportDelayNs); 74 void ReportPlugEventCallback(const SensorPlugInfo &sensorPlugInfo); 75 ErrCode SensorReportEvent(const SensorDescription &sensorDesc, int64_t samplingPeriodNs, int64_t maxReportDelayNs, 76 int32_t pid); 77 78 class PermStateChangeCb : public Security::AccessToken::PermStateChangeCallbackCustomize { 79 public: PermStateChangeCb(const Security::AccessToken::PermStateChangeScope & scope,sptr<SensorService> server)80 PermStateChangeCb(const Security::AccessToken::PermStateChangeScope &scope, 81 sptr<SensorService> server) : PermStateChangeCallbackCustomize(scope), server_(server) {} 82 void PermStateChangeCallback(PermStateChangeInfo &result) override; 83 84 private: 85 sptr<SensorService> server_ = nullptr; 86 }; 87 88 void RegisterClientDeathRecipient(sptr<IRemoteObject> sensorClient, int32_t pid); 89 void UnregisterClientDeathRecipient(sptr<IRemoteObject> sensorClient); 90 bool InitSensorPolicy(); 91 void ReportOnChangeData(const SensorDescription &sensorDesc); 92 void ReportSensorSysEvent(int32_t sensorType, bool enable, int32_t pid, int64_t samplingPeriodNs = 0, 93 int64_t maxReportDelayNs = 0); 94 ErrCode DisableSensor(const SensorDescription &sensorDesc, int32_t pid); 95 bool RegisterPermCallback(int32_t sensorType); 96 void UnregisterPermCallback(); 97 bool CheckSensorId(const SensorDescription &sensorDesc); 98 void ReportActiveInfo(const SensorDescription &sensorDesc, int32_t pid); 99 bool IsSystemServiceCalling(); 100 bool IsSystemCalling(); 101 bool IsNeedLoadMotionLib(); 102 void SetCritical(); 103 SensorServiceState state_; 104 std::mutex serviceLock_; 105 std::mutex sensorsMutex_; 106 std::mutex sensorMapMutex_; 107 std::vector<Sensor> sensors_; 108 std::unordered_map<SensorDescription, Sensor> sensorMap_; 109 #ifdef HDF_DRIVERS_INTERFACE_SENSOR 110 bool InitInterface(); 111 bool InitDataCallback(); 112 bool InitSensorList(); 113 bool InitPlugCallback(); 114 SensorHdiConnection &sensorHdiConnection_ = SensorHdiConnection::GetInstance(); 115 sptr<SensorDataProcesser> sensorDataProcesser_ = nullptr; 116 sptr<ReportDataCallback> reportDataCallback_ = nullptr; 117 #endif // HDF_DRIVERS_INTERFACE_SENSOR 118 ClientInfo &clientInfo_ = ClientInfo::GetInstance(); 119 SensorManager &sensorManager_ = SensorManager::GetInstance(); 120 std::mutex uidLock_; 121 // death recipient of sensor client 122 std::mutex clientDeathObserverMutex_; 123 sptr<IRemoteObject::DeathRecipient> clientDeathObserver_ = nullptr; 124 std::shared_ptr<PermStateChangeCb> permStateChangeCb_ = nullptr; 125 ErrCode SaveSubscriber(const SensorDescription &sensorDesc, int64_t samplingPeriodNs, int64_t maxReportDelayNs); 126 std::atomic_bool isReportActiveInfo_ = false; 127 static std::atomic_bool isAccessTokenServiceActive_; 128 static std::atomic_bool isMemoryMgrServiceActive_; 129 static std::atomic_bool isCritical_; 130 }; 131 132 #define POWER_POLICY SensorPowerPolicy::GetInstance() 133 } // namespace Sensors 134 } // namespace OHOS 135 #endif // SENSOR_SERVICE_H 136