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 OBSERVER_HANDLER_H 17 #define OBSERVER_HANDLER_H 18 19 #include <mutex> 20 #include <unordered_map> 21 22 #include "event_handler.h" 23 #include "tel_event_handler.h" 24 #include "telephony_log_wrapper.h" 25 26 namespace OHOS { 27 namespace Telephony { 28 class ObserverHandler { 29 public: 30 ObserverHandler(); 31 32 virtual ~ObserverHandler(); 33 34 void RegObserver(int32_t what, const std::shared_ptr<AppExecFwk::EventHandler> handler); 35 36 void RegUniqueObserver(int32_t what, const std::shared_ptr<AppExecFwk::EventHandler> handler); 37 38 void Remove(int32_t what, const std::shared_ptr<AppExecFwk::EventHandler> handler); 39 40 void RemoveAll(); 41 42 void NotifyObserver(int32_t what); 43 NotifyObserver(int32_t what,int64_t param)44 void NotifyObserver(int32_t what, int64_t param) 45 { 46 std::lock_guard<std::mutex> lock(mutex_); 47 auto iter = observerHandlerMap_.find(what); 48 if (iter == observerHandlerMap_.end()) { 49 TELEPHONY_LOGE("ObserverHandler NotifyObserver %{public}d not register", what); 50 return; 51 } 52 53 for (auto handlers : iter->second) { 54 TelEventHandler::SendTelEvent(handlers, what, param, 0); 55 } 56 } 57 58 template<typename T> NotifyObserver(int32_t what,std::shared_ptr<T> object)59 void NotifyObserver(int32_t what, std::shared_ptr<T> object) 60 { 61 std::lock_guard<std::mutex> lock(mutex_); 62 auto iter = observerHandlerMap_.find(what); 63 if (iter == observerHandlerMap_.end()) { 64 TELEPHONY_LOGE("ObserverHandler NotifyObserver %{public}d not register", what); 65 return; 66 } 67 for (auto handlers : iter->second) { 68 TelEventHandler::SendTelEvent(handlers, what, object); 69 } 70 } 71 72 private: 73 std::unordered_map<int32_t, std::list<std::shared_ptr<AppExecFwk::EventHandler>>> observerHandlerMap_; 74 std::mutex mutex_; 75 }; 76 } // namespace Telephony 77 } // namespace OHOS 78 #endif // OBSERVER_HANDLER_H 79