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_LIBPERFMGR_FILENODE_H_ 18 #define ANDROID_LIBPERFMGR_FILENODE_H_ 19 20 #include <cstddef> 21 #include <string> 22 #include <vector> 23 24 #include <android-base/unique_fd.h> 25 26 #include "perfmgr/Node.h" 27 28 namespace android { 29 namespace perfmgr { 30 31 // FileNode represents file 32 class FileNode : public Node { 33 public: 34 FileNode(std::string name, std::string node_path, 35 std::vector<RequestGroup> req_sorted, std::size_t default_val_index, 36 bool reset_on_init, bool hold_fd = false); 37 38 std::chrono::milliseconds Update(bool log_error) override; 39 40 bool GetHoldFd() const; 41 42 void DumpToFd(int fd) const override; 43 44 private: 45 FileNode(const Node& other) = delete; 46 FileNode& operator=(Node const&) = delete; 47 48 const bool hold_fd_; 49 android::base::unique_fd fd_; 50 }; 51 52 } // namespace perfmgr 53 } // namespace android 54 55 #endif // ANDROID_LIBPERFMGR_FILENODE_H_ 56