1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specic language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_LIBAPPFUSE_EPOLLCONTROLLER_H_ 18 #define ANDROID_LIBAPPFUSE_EPOLLCONTROLLER_H_ 19 20 #include <sys/epoll.h> 21 22 #include <vector> 23 24 #include <android-base/macros.h> 25 #include <android-base/unique_fd.h> 26 27 namespace android { 28 namespace fuse { 29 30 class EpollController { 31 public: 32 explicit EpollController(base::unique_fd&& poll_fd); 33 bool Wait(size_t event_count); 34 bool AddFd(int fd, int events, void* data); 35 bool UpdateFd(int fd, int events, void* data); 36 bool RemoveFd(int fd); 37 38 const std::vector<epoll_event>& events() const; 39 40 protected: 41 bool InvokeControl(int op, int fd, int events, void* data) const; 42 43 private: 44 base::unique_fd poll_fd_; 45 std::vector<epoll_event> events_; 46 47 DISALLOW_COPY_AND_ASSIGN(EpollController); 48 }; 49 } 50 } 51 52 #endif // ANDROID_LIBAPPFUSE_EPOLLCONTROLLER_H_ 53
