1 /* 2 * Copyright (c) 2021 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 OHOS_ABILITY_RUNTIME_DATAOBS_MGR_INNER_H 17 #define OHOS_ABILITY_RUNTIME_DATAOBS_MGR_INNER_H 18 19 #include <atomic> 20 #include <list> 21 #include <map> 22 #include <memory> 23 #include <mutex> 24 #include <string> 25 #include "cpp/mutex.h" 26 27 #include "data_ability_observer_interface.h" 28 29 namespace OHOS { 30 namespace AAFwk { 31 class DataObsMgrInner : public std::enable_shared_from_this<DataObsMgrInner> { 32 public: 33 using ObsMapType = std::map<std::string, std::list<sptr<IDataAbilityObserver>>>; 34 using ObsRecipientMapType = std::map<sptr<IRemoteObject>, sptr<IRemoteObject::DeathRecipient>>; 35 36 DataObsMgrInner(); 37 virtual ~DataObsMgrInner(); 38 39 int HandleRegisterObserver(const Uri &uri, sptr<IDataAbilityObserver> dataObserver); 40 int HandleUnregisterObserver(const Uri &uri, sptr<IDataAbilityObserver> dataObserver); 41 int HandleNotifyChange(const Uri &uri); 42 void OnCallBackDied(const wptr<IRemoteObject> &remote); 43 44 private: 45 void AddObsDeathRecipient(sptr<IDataAbilityObserver> dataObserver); 46 void RemoveObsDeathRecipient(sptr<IRemoteObject> dataObserver); 47 void RemoveObs(sptr<IRemoteObject> dataObserver); 48 bool HaveRegistered(sptr<IDataAbilityObserver> dataObserver); 49 50 static constexpr uint32_t OBS_NUM_MAX = 50; 51 ffrt::mutex innerMutex_; 52 ObsMapType observers_; 53 ObsRecipientMapType obsRecipient_; 54 }; 55 } // namespace AAFwk 56 } // namespace OHOS 57 #endif // OHOS_ABILITY_RUNTIME_DATAOBS_MGR_INNER_H 58