| 1 | /* Copyright (C) 2010-2020 The RetroArch team |
| 2 | * |
| 3 | * --------------------------------------------------------------------------------------- |
| 4 | * The following license statement only applies to this file (retro_dirent.c). |
| 5 | * --------------------------------------------------------------------------------------- |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, |
| 8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), |
| 9 | * to deal in the Software without restriction, including without limitation the rights to |
| 10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, |
| 11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
| 16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #include <stdio.h> |
| 24 | #include <stdlib.h> |
| 25 | #include <string.h> |
| 26 | |
| 27 | #include <retro_common.h> |
| 28 | |
| 29 | #include <boolean.h> |
| 30 | #include <retro_dirent.h> |
| 31 | #define VFS_FRONTEND |
| 32 | #include <vfs/vfs_implementation.h> |
| 33 | |
| 34 | /* TODO/FIXME - static globals */ |
| 35 | static retro_vfs_opendir_t dirent_opendir_cb = NULL; |
| 36 | static retro_vfs_readdir_t dirent_readdir_cb = NULL; |
| 37 | static retro_vfs_dirent_get_name_t dirent_dirent_get_name_cb = NULL; |
| 38 | static retro_vfs_dirent_is_dir_t dirent_dirent_is_dir_cb = NULL; |
| 39 | static retro_vfs_closedir_t dirent_closedir_cb = NULL; |
| 40 | |
| 41 | void dirent_vfs_init(const struct retro_vfs_interface_info* vfs_info) |
| 42 | { |
| 43 | const struct retro_vfs_interface* vfs_iface; |
| 44 | |
| 45 | dirent_opendir_cb = NULL; |
| 46 | dirent_readdir_cb = NULL; |
| 47 | dirent_dirent_get_name_cb = NULL; |
| 48 | dirent_dirent_is_dir_cb = NULL; |
| 49 | dirent_closedir_cb = NULL; |
| 50 | |
| 51 | vfs_iface = vfs_info->iface; |
| 52 | |
| 53 | if ( |
| 54 | vfs_info->required_interface_version < DIRENT_REQUIRED_VFS_VERSION || |
| 55 | !vfs_iface) |
| 56 | return; |
| 57 | |
| 58 | dirent_opendir_cb = vfs_iface->opendir; |
| 59 | dirent_readdir_cb = vfs_iface->readdir; |
| 60 | dirent_dirent_get_name_cb = vfs_iface->dirent_get_name; |
| 61 | dirent_dirent_is_dir_cb = vfs_iface->dirent_is_dir; |
| 62 | dirent_closedir_cb = vfs_iface->closedir; |
| 63 | } |
| 64 | |
| 65 | struct RDIR *retro_opendir_include_hidden( |
| 66 | const char *name, bool include_hidden) |
| 67 | { |
| 68 | if (dirent_opendir_cb) |
| 69 | return (struct RDIR *)dirent_opendir_cb(name, include_hidden); |
| 70 | return (struct RDIR *)retro_vfs_opendir_impl(name, include_hidden); |
| 71 | } |
| 72 | |
| 73 | struct RDIR *retro_opendir(const char *name) |
| 74 | { |
| 75 | return retro_opendir_include_hidden(name, false); |
| 76 | } |
| 77 | |
| 78 | bool retro_dirent_error(struct RDIR *rdir) |
| 79 | { |
| 80 | /* Left for compatibility */ |
| 81 | return false; |
| 82 | } |
| 83 | |
| 84 | int retro_readdir(struct RDIR *rdir) |
| 85 | { |
| 86 | if (dirent_readdir_cb) |
| 87 | return dirent_readdir_cb((struct retro_vfs_dir_handle *)rdir); |
| 88 | return retro_vfs_readdir_impl((struct retro_vfs_dir_handle *)rdir); |
| 89 | } |
| 90 | |
| 91 | const char *retro_dirent_get_name(struct RDIR *rdir) |
| 92 | { |
| 93 | if (dirent_dirent_get_name_cb) |
| 94 | return dirent_dirent_get_name_cb((struct retro_vfs_dir_handle *)rdir); |
| 95 | return retro_vfs_dirent_get_name_impl((struct retro_vfs_dir_handle *)rdir); |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * |
| 100 | * retro_dirent_is_dir: |
| 101 | * @rdir : pointer to the directory entry. |
| 102 | * @unused : deprecated, included for compatibility reasons, pass NULL |
| 103 | * |
| 104 | * Is the directory listing entry a directory? |
| 105 | * |
| 106 | * Returns: true if directory listing entry is |
| 107 | * a directory, false if not. |
| 108 | */ |
| 109 | bool retro_dirent_is_dir(struct RDIR *rdir, const char *unused) |
| 110 | { |
| 111 | if (dirent_dirent_is_dir_cb) |
| 112 | return dirent_dirent_is_dir_cb((struct retro_vfs_dir_handle *)rdir); |
| 113 | return retro_vfs_dirent_is_dir_impl((struct retro_vfs_dir_handle *)rdir); |
| 114 | } |
| 115 | |
| 116 | void retro_closedir(struct RDIR *rdir) |
| 117 | { |
| 118 | if (dirent_closedir_cb) |
| 119 | dirent_closedir_cb((struct retro_vfs_dir_handle *)rdir); |
| 120 | else |
| 121 | retro_vfs_closedir_impl((struct retro_vfs_dir_handle *)rdir); |
| 122 | } |