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 <memory> 21 #include <vector> 22 23 #include "nocopyable.h" 24 25 #include "i_epoll_event_source.h" 26 27 namespace OHOS { 28 namespace Msdp { 29 namespace DeviceStatus { 30 class EpollManager final : public IEpollEventSource { 31 public: 32 EpollManager() = default; 33 ~EpollManager(); 34 DISALLOW_COPY_AND_MOVE(EpollManager); 35 36 int32_t Open(); 37 void Close(); 38 39 int32_t Add(IEpollEventSource &source); 40 void Remove(IEpollEventSource &source); 41 int32_t Update(IEpollEventSource &source); 42 int32_t Wait(struct epoll_event *events, int32_t maxevents); 43 int32_t WaitTimeout(struct epoll_event *events, int32_t maxevents, int32_t timeout); 44 45 int32_t GetFd() const override; 46 void Dispatch(const struct epoll_event &ev) override; 47 48 private: 49 void DispatchOne(const struct epoll_event &ev); 50 51 private: 52 int32_t epollFd_ { -1 }; 53 }; 54 GetFd()55inline int32_t EpollManager::GetFd() const 56 { 57 return epollFd_; 58 } 59 } // namespace DeviceStatus 60 } // namespace Msdp 61 } // namespace OHOS 62 #endif // EPOLL_MANAGER_H