1 /* 2 * Copyright (c) 2022 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 COMMUNICATIONNETMANAGER_BASE_EVENT_MANAGER_H 17 #define COMMUNICATIONNETMANAGER_BASE_EVENT_MANAGER_H 18 19 #include <atomic> 20 #include <list> 21 #include <shared_mutex> 22 23 #include <uv.h> 24 25 #include "event_listener.h" 26 #include "napi_utils.h" 27 28 namespace OHOS { 29 namespace NetManagerStandard { 30 class EventManager : public std::enable_shared_from_this<EventManager> { 31 public: 32 EventManager(); 33 34 void AddListener(napi_env env, const std::string &type, napi_value callback, bool once, bool asyncCallback); 35 void DeleteListener(const std::string &type, napi_value callback); 36 void Emit(const std::string &type, const std::pair<napi_value, napi_value> &argv); 37 void SetData(void *data); 38 void EmitByUv(const std::string &type, void *data, void(handler)(uv_work_t *, int status)); 39 void EmitByUvWithModuleId(const std::string &type, const NapiUtils::UvHandler &handler, uint64_t moduleId); 40 bool HasEventListener(const std::string &type); 41 void DeleteListener(const std::string &type); 42 void DeleteAllListener(); 43 [[nodiscard]] void *GetData(); 44 IsListenerListEmpty()45 bool IsListenerListEmpty() const 46 { 47 return listeners_.empty(); 48 } 49 GetListenerListNum()50 size_t GetListenerListNum() const 51 { 52 return listeners_.size(); 53 } 54 55 napi_ref GetRef() const; 56 void SetRef(napi_ref ref); 57 58 private: 59 std::shared_mutex mutexForListenersAndEmitByUv_; 60 std::mutex mutexForEmitAndEmitByUv_; 61 std::list<EventListener> listeners_; 62 void *data_ = nullptr; 63 napi_ref ref_ = nullptr; 64 }; 65 66 struct UvWorkWrapper { 67 UvWorkWrapper() = delete; 68 explicit UvWorkWrapper(void *theData, napi_env theEnv, std::string eventType, 69 std::shared_ptr<EventManager> eventManager); 70 void *data; 71 napi_env env; 72 std::string type; 73 std::shared_ptr<EventManager> manager{ nullptr }; 74 }; 75 } // namespace NetManagerStandard 76 } // namespace OHOS 77 #endif // COMMUNICATIONNETMANAGER_BASE_EVENT_MANAGER_H 78