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 EPOLL_MANAGER_H 17 #define EPOLL_MANAGER_H 18 19 #include <cinttypes> 20 #include <map> 21 #include <memory> 22 #include <vector> 23 24 #include "nocopyable.h" 25 26 #include "i_epoll_event_source.h" 27 28 namespace OHOS { 29 namespace Msdp { 30 namespace DeviceStatus { 31 class EpollManager final : public IEpollEventSource { 32 public: 33 EpollManager() = default; 34 ~EpollManager(); 35 DISALLOW_COPY_AND_MOVE(EpollManager); 36 37 bool Open(); 38 void Close(); 39 40 bool Add(std::shared_ptr<IEpollEventSource> source); 41 void Remove(std::shared_ptr<IEpollEventSource> source); 42 bool Update(std::shared_ptr<IEpollEventSource> source); 43 int32_t Wait(struct epoll_event *events, int32_t maxevents); 44 int32_t WaitTimeout(struct epoll_event *events, int32_t maxevents, int32_t timeout); 45 46 int32_t GetFd() const override; 47 void Dispatch(const struct epoll_event &ev) override; 48 49 private: 50 void DispatchOne(const struct epoll_event &ev); 51 52 private: 53 int32_t epollFd_ { -1 }; 54 std::map<int32_t, std::shared_ptr<IEpollEventSource>> sources_; 55 }; 56 GetFd() const57inline int32_t EpollManager::GetFd() const 58 { 59 return epollFd_; 60 } 61 } // namespace DeviceStatus 62 } // namespace Msdp 63 } // namespace OHOS 64 #endif // EPOLL_MANAGER_H