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3719602c PC |
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 | } |