1 /* 2 * Copyright (C) 2019 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 specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef MEDIA_PROVIDER_FUSE_READDIR_HELPER_H 18 #define MEDIA_PROVIDER_FUSE_READDIR_HELPER_H 19 20 #include <dirent.h> 21 #include <string> 22 #include <vector> 23 24 namespace mediaprovider { 25 namespace fuse { 26 27 /** 28 * Holds a directory entry. 29 * 30 * DirectoryEntry object holds information about the directory entry such as 31 * name and type of the file or directory. 32 */ 33 struct DirectoryEntry { 34 /** 35 * Create a directory entry. 36 * 37 * @param name directory entry name. 38 * @param type directory entry type. Directory entry type corresponds to 39 * d_type of dirent structure defined in dirent.h 40 */ DirectoryEntryDirectoryEntry41 DirectoryEntry(const std::string& name, int type) : d_name(name), d_type(type) {} 42 const std::string d_name; 43 const int d_type; 44 }; 45 46 /** 47 * Adds directory entries from lower file system to the list. 48 * 49 * If a filter is specified, directory entries must satisfy the given filter. If filter is null, 50 * all directory entries(except '.' & '..') are returned. 51 */ 52 void addDirectoryEntriesFromLowerFs(DIR* dirp, bool (*const filter)(const dirent&), 53 std::vector<std::shared_ptr<DirectoryEntry>>* directory_entries); 54 55 /** 56 * Checks if the given dirent is directory. 57 */ 58 bool isDirectory(const dirent& entry); 59 60 } // namespace fuse 61 } // namespace mediaprovider 62 #endif 63