sdl3_sys/generated/filesystem.rs
1//! SDL offers an API for examining and manipulating the system's filesystem.
2//! This covers most things one would need to do with directories, except for
3//! actual file I/O (which is covered by [CategoryIOStream](CategoryIOStream)
4//! and [CategoryAsyncIO](CategoryAsyncIO) instead).
5//!
6//! There are functions to answer necessary path questions:
7//!
8//! - Where is my app's data? [`SDL_GetBasePath()`].
9//! - Where can I safely write files? [`SDL_GetPrefPath()`].
10//! - Where are paths like Downloads, Desktop, Music? [`SDL_GetUserFolder()`].
11//! - What is this thing at this location? [`SDL_GetPathInfo()`].
12//! - What items live in this folder? [`SDL_EnumerateDirectory()`].
13//! - What items live in this folder by wildcard? [`SDL_GlobDirectory()`].
14//! - What is my current working directory? [`SDL_GetCurrentDirectory()`].
15//!
16//! SDL also offers functions to manipulate the directory tree: renaming,
17//! removing, copying files.
18
19use super::stdinc::*;
20
21use super::error::*;
22
23extern "C" {
24 /// Get the directory where the application was run from.
25 ///
26 /// SDL caches the result of this call internally, but the first call to this
27 /// function is not necessarily fast, so plan accordingly.
28 ///
29 /// **macOS and iOS Specific Functionality**: If the application is in a ".app"
30 /// bundle, this function returns the Resource directory (e.g.
31 /// MyApp.app/Contents/Resources/). This behaviour can be overridden by adding
32 /// a property to the Info.plist file. Adding a string key with the name
33 /// SDL_FILESYSTEM_BASE_DIR_TYPE with a supported value will change the
34 /// behaviour.
35 ///
36 /// Supported values for the SDL_FILESYSTEM_BASE_DIR_TYPE property (Given an
37 /// application in /Applications/SDLApp/MyApp.app):
38 ///
39 /// - `resource`: bundle resource directory (the default). For example:
40 /// `/Applications/SDLApp/MyApp.app/Contents/Resources`
41 /// - `bundle`: the Bundle directory. For example:
42 /// `/Applications/SDLApp/MyApp.app/`
43 /// - `parent`: the containing directory of the bundle. For example:
44 /// `/Applications/SDLApp/`
45 ///
46 /// **Nintendo 3DS Specific Functionality**: This function returns "romfs"
47 /// directory of the application as it is uncommon to store resources outside
48 /// the executable. As such it is not a writable directory.
49 ///
50 /// The returned path is guaranteed to end with a path separator ('\\' on
51 /// Windows, '/' on most other platforms).
52 ///
53 /// ### Return value
54 /// Returns an absolute path in UTF-8 encoding to the application data
55 /// directory. NULL will be returned on error or when the platform
56 /// doesn't implement this functionality, call [`SDL_GetError()`] for more
57 /// information.
58 ///
59 /// ### Availability
60 /// This function is available since SDL 3.2.0.
61 ///
62 /// ### See also
63 /// - [`SDL_GetPrefPath`]
64 pub fn SDL_GetBasePath() -> *const ::core::ffi::c_char;
65}
66
67extern "C" {
68 /// Get the user-and-app-specific path where files can be written.
69 ///
70 /// Get the "pref dir". This is meant to be where users can write personal
71 /// files (preferences and save games, etc) that are specific to your
72 /// application. This directory is unique per user, per application.
73 ///
74 /// This function will decide the appropriate location in the native
75 /// filesystem, create the directory if necessary, and return a string of the
76 /// absolute path to the directory in UTF-8 encoding.
77 ///
78 /// On Windows, the string might look like:
79 ///
80 /// `C:\\Users\\bob\\AppData\\Roaming\\My Company\\My Program Name\\`
81 ///
82 /// On Linux, the string might look like:
83 ///
84 /// `/home/bob/.local/share/My Program Name/`
85 ///
86 /// On macOS, the string might look like:
87 ///
88 /// `/Users/bob/Library/Application Support/My Program Name/`
89 ///
90 /// You should assume the path returned by this function is the only safe place
91 /// to write files (and that [`SDL_GetBasePath()`], while it might be writable, or
92 /// even the parent of the returned path, isn't where you should be writing
93 /// things).
94 ///
95 /// Both the org and app strings may become part of a directory name, so please
96 /// follow these rules:
97 ///
98 /// - Try to use the same org string (_including case-sensitivity_) for all
99 /// your applications that use this function.
100 /// - Always use a unique app string for each one, and make sure it never
101 /// changes for an app once you've decided on it.
102 /// - Unicode characters are legal, as long as they are UTF-8 encoded, but...
103 /// - ...only use letters, numbers, and spaces. Avoid punctuation like "Game
104 /// Name 2: Bad Guy's Revenge!" ... "Game Name 2" is sufficient.
105 ///
106 /// The returned path is guaranteed to end with a path separator ('\\' on
107 /// Windows, '/' on most other platforms).
108 ///
109 /// ### Parameters
110 /// - `org`: the name of your organization.
111 /// - `app`: the name of your application.
112 ///
113 /// ### Return value
114 /// Returns a UTF-8 string of the user directory in platform-dependent
115 /// notation. NULL if there's a problem (creating directory failed,
116 /// etc.). This should be freed with [`SDL_free()`] when it is no longer
117 /// needed.
118 ///
119 /// ### Availability
120 /// This function is available since SDL 3.2.0.
121 ///
122 /// ### See also
123 /// - [`SDL_GetBasePath`]
124 pub fn SDL_GetPrefPath(
125 org: *const ::core::ffi::c_char,
126 app: *const ::core::ffi::c_char,
127 ) -> *mut ::core::ffi::c_char;
128}
129
130/// The type of the OS-provided default folder for a specific purpose.
131///
132/// Note that the Trash folder isn't included here, because trashing files
133/// usually involves extra OS-specific functionality to remember the file's
134/// original location.
135///
136/// The folders supported per platform are:
137///
138/// | | Windows | macOS/iOS | tvOS | Unix (XDG) | Haiku | Emscripten |
139/// | ----------- | ------- | --------- | ---- | ---------- | ----- | ---------- |
140/// | HOME | X | X | | X | X | X |
141/// | DESKTOP | X | X | | X | X | |
142/// | DOCUMENTS | X | X | | X | | |
143/// | DOWNLOADS | Vista+ | X | | X | | |
144/// | MUSIC | X | X | | X | | |
145/// | PICTURES | X | X | | X | | |
146/// | PUBLICSHARE | | X | | X | | |
147/// | SAVEDGAMES | Vista+ | | | | | |
148/// | SCREENSHOTS | Vista+ | | | | | |
149/// | TEMPLATES | X | X | | X | | |
150/// | VIDEOS | X | X* | | X | | |
151///
152/// Note that on macOS/iOS, the Videos folder is called "Movies".
153///
154/// ### Availability
155/// This enum is available since SDL 3.2.0.
156///
157/// ### See also
158/// - [`SDL_GetUserFolder`]
159///
160/// ### Known values (`sdl3-sys`)
161/// | Associated constant | Global constant | Description |
162/// | ------------------- | --------------- | ----------- |
163/// | [`HOME`](SDL_Folder::HOME) | [`SDL_FOLDER_HOME`] | The folder which contains all of the current user's data, preferences, and documents. It usually contains most of the other folders. If a requested folder does not exist, the home folder can be considered a safe fallback to store a user's documents. |
164/// | [`DESKTOP`](SDL_Folder::DESKTOP) | [`SDL_FOLDER_DESKTOP`] | The folder of files that are displayed on the desktop. Note that the existence of a desktop folder does not guarantee that the system does show icons on its desktop; certain GNU/Linux distros with a graphical environment may not have desktop icons. |
165/// | [`DOCUMENTS`](SDL_Folder::DOCUMENTS) | [`SDL_FOLDER_DOCUMENTS`] | User document files, possibly application-specific. This is a good place to save a user's projects. |
166/// | [`DOWNLOADS`](SDL_Folder::DOWNLOADS) | [`SDL_FOLDER_DOWNLOADS`] | Standard folder for user files downloaded from the internet. |
167/// | [`MUSIC`](SDL_Folder::MUSIC) | [`SDL_FOLDER_MUSIC`] | Music files that can be played using a standard music player (mp3, ogg...). |
168/// | [`PICTURES`](SDL_Folder::PICTURES) | [`SDL_FOLDER_PICTURES`] | Image files that can be displayed using a standard viewer (png, jpg...). |
169/// | [`PUBLICSHARE`](SDL_Folder::PUBLICSHARE) | [`SDL_FOLDER_PUBLICSHARE`] | Files that are meant to be shared with other users on the same computer. |
170/// | [`SAVEDGAMES`](SDL_Folder::SAVEDGAMES) | [`SDL_FOLDER_SAVEDGAMES`] | Save files for games. |
171/// | [`SCREENSHOTS`](SDL_Folder::SCREENSHOTS) | [`SDL_FOLDER_SCREENSHOTS`] | Application screenshots. |
172/// | [`TEMPLATES`](SDL_Folder::TEMPLATES) | [`SDL_FOLDER_TEMPLATES`] | Template files to be used when the user requests the desktop environment to create a new file in a certain folder, such as "New Text File.txt". Any file in the Templates folder can be used as a starting point for a new file. |
173/// | [`VIDEOS`](SDL_Folder::VIDEOS) | [`SDL_FOLDER_VIDEOS`] | Video files that can be played using a standard video player (mp4, webm...). |
174/// | [`COUNT`](SDL_Folder::COUNT) | [`SDL_FOLDER_COUNT`] | Total number of types in this enum, not a folder type by itself. |
175#[repr(transparent)]
176#[derive(Clone, Copy, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
177pub struct SDL_Folder(pub ::core::ffi::c_int);
178
179impl From<SDL_Folder> for ::core::ffi::c_int {
180 #[inline(always)]
181 fn from(value: SDL_Folder) -> Self {
182 value.0
183 }
184}
185
186#[cfg(feature = "debug-impls")]
187impl ::core::fmt::Debug for SDL_Folder {
188 fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
189 #[allow(unreachable_patterns)]
190 f.write_str(match *self {
191 Self::HOME => "SDL_FOLDER_HOME",
192 Self::DESKTOP => "SDL_FOLDER_DESKTOP",
193 Self::DOCUMENTS => "SDL_FOLDER_DOCUMENTS",
194 Self::DOWNLOADS => "SDL_FOLDER_DOWNLOADS",
195 Self::MUSIC => "SDL_FOLDER_MUSIC",
196 Self::PICTURES => "SDL_FOLDER_PICTURES",
197 Self::PUBLICSHARE => "SDL_FOLDER_PUBLICSHARE",
198 Self::SAVEDGAMES => "SDL_FOLDER_SAVEDGAMES",
199 Self::SCREENSHOTS => "SDL_FOLDER_SCREENSHOTS",
200 Self::TEMPLATES => "SDL_FOLDER_TEMPLATES",
201 Self::VIDEOS => "SDL_FOLDER_VIDEOS",
202 Self::COUNT => "SDL_FOLDER_COUNT",
203
204 _ => return write!(f, "SDL_Folder({})", self.0),
205 })
206 }
207}
208
209impl SDL_Folder {
210 /// The folder which contains all of the current user's data, preferences, and documents. It usually contains most of the other folders. If a requested folder does not exist, the home folder can be considered a safe fallback to store a user's documents.
211 pub const HOME: Self = Self(0);
212 /// The folder of files that are displayed on the desktop. Note that the existence of a desktop folder does not guarantee that the system does show icons on its desktop; certain GNU/Linux distros with a graphical environment may not have desktop icons.
213 pub const DESKTOP: Self = Self(1);
214 /// User document files, possibly application-specific. This is a good place to save a user's projects.
215 pub const DOCUMENTS: Self = Self(2);
216 /// Standard folder for user files downloaded from the internet.
217 pub const DOWNLOADS: Self = Self(3);
218 /// Music files that can be played using a standard music player (mp3, ogg...).
219 pub const MUSIC: Self = Self(4);
220 /// Image files that can be displayed using a standard viewer (png, jpg...).
221 pub const PICTURES: Self = Self(5);
222 /// Files that are meant to be shared with other users on the same computer.
223 pub const PUBLICSHARE: Self = Self(6);
224 /// Save files for games.
225 pub const SAVEDGAMES: Self = Self(7);
226 /// Application screenshots.
227 pub const SCREENSHOTS: Self = Self(8);
228 /// Template files to be used when the user requests the desktop environment to create a new file in a certain folder, such as "New Text File.txt". Any file in the Templates folder can be used as a starting point for a new file.
229 pub const TEMPLATES: Self = Self(9);
230 /// Video files that can be played using a standard video player (mp4, webm...).
231 pub const VIDEOS: Self = Self(10);
232 /// Total number of types in this enum, not a folder type by itself.
233 pub const COUNT: Self = Self(11);
234}
235
236/// The folder which contains all of the current user's data, preferences, and documents. It usually contains most of the other folders. If a requested folder does not exist, the home folder can be considered a safe fallback to store a user's documents.
237pub const SDL_FOLDER_HOME: SDL_Folder = SDL_Folder::HOME;
238/// The folder of files that are displayed on the desktop. Note that the existence of a desktop folder does not guarantee that the system does show icons on its desktop; certain GNU/Linux distros with a graphical environment may not have desktop icons.
239pub const SDL_FOLDER_DESKTOP: SDL_Folder = SDL_Folder::DESKTOP;
240/// User document files, possibly application-specific. This is a good place to save a user's projects.
241pub const SDL_FOLDER_DOCUMENTS: SDL_Folder = SDL_Folder::DOCUMENTS;
242/// Standard folder for user files downloaded from the internet.
243pub const SDL_FOLDER_DOWNLOADS: SDL_Folder = SDL_Folder::DOWNLOADS;
244/// Music files that can be played using a standard music player (mp3, ogg...).
245pub const SDL_FOLDER_MUSIC: SDL_Folder = SDL_Folder::MUSIC;
246/// Image files that can be displayed using a standard viewer (png, jpg...).
247pub const SDL_FOLDER_PICTURES: SDL_Folder = SDL_Folder::PICTURES;
248/// Files that are meant to be shared with other users on the same computer.
249pub const SDL_FOLDER_PUBLICSHARE: SDL_Folder = SDL_Folder::PUBLICSHARE;
250/// Save files for games.
251pub const SDL_FOLDER_SAVEDGAMES: SDL_Folder = SDL_Folder::SAVEDGAMES;
252/// Application screenshots.
253pub const SDL_FOLDER_SCREENSHOTS: SDL_Folder = SDL_Folder::SCREENSHOTS;
254/// Template files to be used when the user requests the desktop environment to create a new file in a certain folder, such as "New Text File.txt". Any file in the Templates folder can be used as a starting point for a new file.
255pub const SDL_FOLDER_TEMPLATES: SDL_Folder = SDL_Folder::TEMPLATES;
256/// Video files that can be played using a standard video player (mp4, webm...).
257pub const SDL_FOLDER_VIDEOS: SDL_Folder = SDL_Folder::VIDEOS;
258/// Total number of types in this enum, not a folder type by itself.
259pub const SDL_FOLDER_COUNT: SDL_Folder = SDL_Folder::COUNT;
260
261extern "C" {
262 /// Finds the most suitable user folder for a specific purpose.
263 ///
264 /// Many OSes provide certain standard folders for certain purposes, such as
265 /// storing pictures, music or videos for a certain user. This function gives
266 /// the path for many of those special locations.
267 ///
268 /// This function is specifically for _user_ folders, which are meant for the
269 /// user to access and manage. For application-specific folders, meant to hold
270 /// data for the application to manage, see [`SDL_GetBasePath()`] and
271 /// [`SDL_GetPrefPath()`].
272 ///
273 /// The returned path is guaranteed to end with a path separator ('\\' on
274 /// Windows, '/' on most other platforms).
275 ///
276 /// If NULL is returned, the error may be obtained with [`SDL_GetError()`].
277 ///
278 /// ### Parameters
279 /// - `folder`: the type of folder to find.
280 ///
281 /// ### Return value
282 /// Returns either a null-terminated C string containing the full path to the
283 /// folder, or NULL if an error happened.
284 ///
285 /// ### Availability
286 /// This function is available since SDL 3.2.0.
287 pub fn SDL_GetUserFolder(folder: SDL_Folder) -> *const ::core::ffi::c_char;
288}
289
290/// Types of filesystem entries.
291///
292/// Note that there may be other sorts of items on a filesystem: devices,
293/// symlinks, named pipes, etc. They are currently reported as
294/// [`SDL_PATHTYPE_OTHER`].
295///
296/// ### Availability
297/// This enum is available since SDL 3.2.0.
298///
299/// ### See also
300/// - [`SDL_PathInfo`]
301///
302/// ### Known values (`sdl3-sys`)
303/// | Associated constant | Global constant | Description |
304/// | ------------------- | --------------- | ----------- |
305/// | [`NONE`](SDL_PathType::NONE) | [`SDL_PATHTYPE_NONE`] | path does not exist |
306/// | [`FILE`](SDL_PathType::FILE) | [`SDL_PATHTYPE_FILE`] | a normal file |
307/// | [`DIRECTORY`](SDL_PathType::DIRECTORY) | [`SDL_PATHTYPE_DIRECTORY`] | a directory |
308/// | [`OTHER`](SDL_PathType::OTHER) | [`SDL_PATHTYPE_OTHER`] | something completely different like a device node (not a symlink, those are always followed) |
309#[repr(transparent)]
310#[derive(Clone, Copy, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
311pub struct SDL_PathType(pub ::core::ffi::c_int);
312
313impl From<SDL_PathType> for ::core::ffi::c_int {
314 #[inline(always)]
315 fn from(value: SDL_PathType) -> Self {
316 value.0
317 }
318}
319
320#[cfg(feature = "debug-impls")]
321impl ::core::fmt::Debug for SDL_PathType {
322 fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
323 #[allow(unreachable_patterns)]
324 f.write_str(match *self {
325 Self::NONE => "SDL_PATHTYPE_NONE",
326 Self::FILE => "SDL_PATHTYPE_FILE",
327 Self::DIRECTORY => "SDL_PATHTYPE_DIRECTORY",
328 Self::OTHER => "SDL_PATHTYPE_OTHER",
329
330 _ => return write!(f, "SDL_PathType({})", self.0),
331 })
332 }
333}
334
335impl SDL_PathType {
336 /// path does not exist
337 pub const NONE: Self = Self(0);
338 /// a normal file
339 pub const FILE: Self = Self(1);
340 /// a directory
341 pub const DIRECTORY: Self = Self(2);
342 /// something completely different like a device node (not a symlink, those are always followed)
343 pub const OTHER: Self = Self(3);
344}
345
346/// path does not exist
347pub const SDL_PATHTYPE_NONE: SDL_PathType = SDL_PathType::NONE;
348/// a normal file
349pub const SDL_PATHTYPE_FILE: SDL_PathType = SDL_PathType::FILE;
350/// a directory
351pub const SDL_PATHTYPE_DIRECTORY: SDL_PathType = SDL_PathType::DIRECTORY;
352/// something completely different like a device node (not a symlink, those are always followed)
353pub const SDL_PATHTYPE_OTHER: SDL_PathType = SDL_PathType::OTHER;
354
355/// Information about a path on the filesystem.
356///
357/// ### Availability
358/// This datatype is available since SDL 3.2.0.
359///
360/// ### See also
361/// - [`SDL_GetPathInfo`]
362/// - [`SDL_GetStoragePathInfo`]
363#[repr(C)]
364#[derive(Clone, Copy, Default, PartialEq, Eq, Hash)]
365#[cfg_attr(feature = "debug-impls", derive(Debug))]
366pub struct SDL_PathInfo {
367 /// the path type
368 pub r#type: SDL_PathType,
369 /// the file size in bytes
370 pub size: Uint64,
371 /// the time when the path was created
372 pub create_time: SDL_Time,
373 /// the last time the path was modified
374 pub modify_time: SDL_Time,
375 /// the last time the path was read
376 pub access_time: SDL_Time,
377}
378
379/// Flags for path matching.
380///
381/// ### Availability
382/// This datatype is available since SDL 3.2.0.
383///
384/// ### See also
385/// - [`SDL_GlobDirectory`]
386/// - [`SDL_GlobStorageDirectory`]
387///
388/// ### Known values (`sdl3-sys`)
389/// | Constant | Description |
390/// | -------- | ----------- |
391/// | [`SDL_GLOB_CASEINSENSITIVE`] | |
392pub type SDL_GlobFlags = Uint32;
393
394pub const SDL_GLOB_CASEINSENSITIVE: SDL_GlobFlags = ((1_u32) as SDL_GlobFlags);
395
396extern "C" {
397 /// Create a directory, and any missing parent directories.
398 ///
399 /// This reports success if `path` already exists as a directory.
400 ///
401 /// If parent directories are missing, it will also create them. Note that if
402 /// this fails, it will not remove any parent directories it already made.
403 ///
404 /// ### Parameters
405 /// - `path`: the path of the directory to create.
406 ///
407 /// ### Return value
408 /// Returns true on success or false on failure; call [`SDL_GetError()`] for more
409 /// information.
410 ///
411 /// ### Availability
412 /// This function is available since SDL 3.2.0.
413 pub fn SDL_CreateDirectory(path: *const ::core::ffi::c_char) -> ::core::primitive::bool;
414}
415
416/// Possible results from an enumeration callback.
417///
418/// ### Availability
419/// This enum is available since SDL 3.2.0.
420///
421/// ### See also
422/// - [`SDL_EnumerateDirectoryCallback`]
423///
424/// ### Known values (`sdl3-sys`)
425/// | Associated constant | Global constant | Description |
426/// | ------------------- | --------------- | ----------- |
427/// | [`CONTINUE`](SDL_EnumerationResult::CONTINUE) | [`SDL_ENUM_CONTINUE`] | Value that requests that enumeration continue. |
428/// | [`SUCCESS`](SDL_EnumerationResult::SUCCESS) | [`SDL_ENUM_SUCCESS`] | Value that requests that enumeration stop, successfully. |
429/// | [`FAILURE`](SDL_EnumerationResult::FAILURE) | [`SDL_ENUM_FAILURE`] | Value that requests that enumeration stop, as a failure. |
430#[repr(transparent)]
431#[derive(Clone, Copy, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
432pub struct SDL_EnumerationResult(pub ::core::ffi::c_int);
433
434impl From<SDL_EnumerationResult> for ::core::ffi::c_int {
435 #[inline(always)]
436 fn from(value: SDL_EnumerationResult) -> Self {
437 value.0
438 }
439}
440
441#[cfg(feature = "debug-impls")]
442impl ::core::fmt::Debug for SDL_EnumerationResult {
443 fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
444 #[allow(unreachable_patterns)]
445 f.write_str(match *self {
446 Self::CONTINUE => "SDL_ENUM_CONTINUE",
447 Self::SUCCESS => "SDL_ENUM_SUCCESS",
448 Self::FAILURE => "SDL_ENUM_FAILURE",
449
450 _ => return write!(f, "SDL_EnumerationResult({})", self.0),
451 })
452 }
453}
454
455impl SDL_EnumerationResult {
456 /// Value that requests that enumeration continue.
457 pub const CONTINUE: Self = Self(0);
458 /// Value that requests that enumeration stop, successfully.
459 pub const SUCCESS: Self = Self(1);
460 /// Value that requests that enumeration stop, as a failure.
461 pub const FAILURE: Self = Self(2);
462}
463
464/// Value that requests that enumeration continue.
465pub const SDL_ENUM_CONTINUE: SDL_EnumerationResult = SDL_EnumerationResult::CONTINUE;
466/// Value that requests that enumeration stop, successfully.
467pub const SDL_ENUM_SUCCESS: SDL_EnumerationResult = SDL_EnumerationResult::SUCCESS;
468/// Value that requests that enumeration stop, as a failure.
469pub const SDL_ENUM_FAILURE: SDL_EnumerationResult = SDL_EnumerationResult::FAILURE;
470
471/// Callback for directory enumeration.
472///
473/// Enumeration of directory entries will continue until either all entries
474/// have been provided to the callback, or the callback has requested a stop
475/// through its return value.
476///
477/// Returning [`SDL_ENUM_CONTINUE`] will let enumeration proceed, calling the
478/// callback with further entries. [`SDL_ENUM_SUCCESS`] and [`SDL_ENUM_FAILURE`] will
479/// terminate the enumeration early, and dictate the return value of the
480/// enumeration function itself.
481///
482/// `dirname` is guaranteed to end with a path separator ('\\' on Windows, '/'
483/// on most other platforms).
484///
485/// ### Parameters
486/// - `userdata`: an app-controlled pointer that is passed to the callback.
487/// - `dirname`: the directory that is being enumerated.
488/// - `fname`: the next entry in the enumeration.
489///
490/// ### Return value
491/// Returns how the enumeration should proceed.
492///
493/// ### Availability
494/// This datatype is available since SDL 3.2.0.
495///
496/// ### See also
497/// - [`SDL_EnumerateDirectory`]
498pub type SDL_EnumerateDirectoryCallback = ::core::option::Option<
499 unsafe extern "C" fn(
500 userdata: *mut ::core::ffi::c_void,
501 dirname: *const ::core::ffi::c_char,
502 fname: *const ::core::ffi::c_char,
503 ) -> SDL_EnumerationResult,
504>;
505
506extern "C" {
507 /// Enumerate a directory through a callback function.
508 ///
509 /// This function provides every directory entry through an app-provided
510 /// callback, called once for each directory entry, until all results have been
511 /// provided or the callback returns either [`SDL_ENUM_SUCCESS`] or
512 /// [`SDL_ENUM_FAILURE`].
513 ///
514 /// This will return false if there was a system problem in general, or if a
515 /// callback returns [`SDL_ENUM_FAILURE`]. A successful return means a callback
516 /// returned [`SDL_ENUM_SUCCESS`] to halt enumeration, or all directory entries
517 /// were enumerated.
518 ///
519 /// ### Parameters
520 /// - `path`: the path of the directory to enumerate.
521 /// - `callback`: a function that is called for each entry in the directory.
522 /// - `userdata`: a pointer that is passed to `callback`.
523 ///
524 /// ### Return value
525 /// Returns true on success or false on failure; call [`SDL_GetError()`] for more
526 /// information.
527 ///
528 /// ### Availability
529 /// This function is available since SDL 3.2.0.
530 pub fn SDL_EnumerateDirectory(
531 path: *const ::core::ffi::c_char,
532 callback: SDL_EnumerateDirectoryCallback,
533 userdata: *mut ::core::ffi::c_void,
534 ) -> ::core::primitive::bool;
535}
536
537extern "C" {
538 /// Remove a file or an empty directory.
539 ///
540 /// Directories that are not empty will fail; this function will not recursely
541 /// delete directory trees.
542 ///
543 /// ### Parameters
544 /// - `path`: the path to remove from the filesystem.
545 ///
546 /// ### Return value
547 /// Returns true on success or false on failure; call [`SDL_GetError()`] for more
548 /// information.
549 ///
550 /// ### Availability
551 /// This function is available since SDL 3.2.0.
552 pub fn SDL_RemovePath(path: *const ::core::ffi::c_char) -> ::core::primitive::bool;
553}
554
555extern "C" {
556 /// Rename a file or directory.
557 ///
558 /// If the file at `newpath` already exists, it will replaced.
559 ///
560 /// Note that this will not copy files across filesystems/drives/volumes, as
561 /// that is a much more complicated (and possibly time-consuming) operation.
562 ///
563 /// Which is to say, if this function fails, [`SDL_CopyFile()`] to a temporary file
564 /// in the same directory as `newpath`, then [`SDL_RenamePath()`] from the
565 /// temporary file to `newpath` and [`SDL_RemovePath()`] on `oldpath` might work
566 /// for files. Renaming a non-empty directory across filesystems is
567 /// dramatically more complex, however.
568 ///
569 /// ### Parameters
570 /// - `oldpath`: the old path.
571 /// - `newpath`: the new path.
572 ///
573 /// ### Return value
574 /// Returns true on success or false on failure; call [`SDL_GetError()`] for more
575 /// information.
576 ///
577 /// ### Availability
578 /// This function is available since SDL 3.2.0.
579 pub fn SDL_RenamePath(
580 oldpath: *const ::core::ffi::c_char,
581 newpath: *const ::core::ffi::c_char,
582 ) -> ::core::primitive::bool;
583}
584
585extern "C" {
586 /// Copy a file.
587 ///
588 /// If the file at `newpath` already exists, it will be overwritten with the
589 /// contents of the file at `oldpath`.
590 ///
591 /// This function will block until the copy is complete, which might be a
592 /// significant time for large files on slow disks. On some platforms, the copy
593 /// can be handed off to the OS itself, but on others SDL might just open both
594 /// paths, and read from one and write to the other.
595 ///
596 /// Note that this is not an atomic operation! If something tries to read from
597 /// `newpath` while the copy is in progress, it will see an incomplete copy of
598 /// the data, and if the calling thread terminates (or the power goes out)
599 /// during the copy, `newpath`'s previous contents will be gone, replaced with
600 /// an incomplete copy of the data. To avoid this risk, it is recommended that
601 /// the app copy to a temporary file in the same directory as `newpath`, and if
602 /// the copy is successful, use [`SDL_RenamePath()`] to replace `newpath` with the
603 /// temporary file. This will ensure that reads of `newpath` will either see a
604 /// complete copy of the data, or it will see the pre-copy state of `newpath`.
605 ///
606 /// This function attempts to synchronize the newly-copied data to disk before
607 /// returning, if the platform allows it, so that the renaming trick will not
608 /// have a problem in a system crash or power failure, where the file could be
609 /// renamed but the contents never made it from the system file cache to the
610 /// physical disk.
611 ///
612 /// If the copy fails for any reason, the state of `newpath` is undefined. It
613 /// might be half a copy, it might be the untouched data of what was already
614 /// there, or it might be a zero-byte file, etc.
615 ///
616 /// ### Parameters
617 /// - `oldpath`: the old path.
618 /// - `newpath`: the new path.
619 ///
620 /// ### Return value
621 /// Returns true on success or false on failure; call [`SDL_GetError()`] for more
622 /// information.
623 ///
624 /// ### Availability
625 /// This function is available since SDL 3.2.0.
626 pub fn SDL_CopyFile(
627 oldpath: *const ::core::ffi::c_char,
628 newpath: *const ::core::ffi::c_char,
629 ) -> ::core::primitive::bool;
630}
631
632extern "C" {
633 /// Get information about a filesystem path.
634 ///
635 /// ### Parameters
636 /// - `path`: the path to query.
637 /// - `info`: a pointer filled in with information about the path, or NULL to
638 /// check for the existence of a file.
639 ///
640 /// ### Return value
641 /// Returns true on success or false if the file doesn't exist, or another
642 /// failure; call [`SDL_GetError()`] for more information.
643 ///
644 /// ### Availability
645 /// This function is available since SDL 3.2.0.
646 pub fn SDL_GetPathInfo(
647 path: *const ::core::ffi::c_char,
648 info: *mut SDL_PathInfo,
649 ) -> ::core::primitive::bool;
650}
651
652extern "C" {
653 /// Enumerate a directory tree, filtered by pattern, and return a list.
654 ///
655 /// Files are filtered out if they don't match the string in `pattern`, which
656 /// may contain wildcard characters '\*' (match everything) and '?' (match one
657 /// character). If pattern is NULL, no filtering is done and all results are
658 /// returned. Subdirectories are permitted, and are specified with a path
659 /// separator of '/'. Wildcard characters '\*' and '?' never match a path
660 /// separator.
661 ///
662 /// `flags` may be set to [`SDL_GLOB_CASEINSENSITIVE`] to make the pattern matching
663 /// case-insensitive.
664 ///
665 /// The returned array is always NULL-terminated, for your iterating
666 /// convenience, but if `count` is non-NULL, on return it will contain the
667 /// number of items in the array, not counting the NULL terminator.
668 ///
669 /// ### Parameters
670 /// - `path`: the path of the directory to enumerate.
671 /// - `pattern`: the pattern that files in the directory must match. Can be
672 /// NULL.
673 /// - `flags`: `SDL_GLOB_*` bitflags that affect this search.
674 /// - `count`: on return, will be set to the number of items in the returned
675 /// array. Can be NULL.
676 ///
677 /// ### Return value
678 /// Returns an array of strings on success or NULL on failure; call
679 /// [`SDL_GetError()`] for more information. This is a single allocation
680 /// that should be freed with [`SDL_free()`] when it is no longer needed.
681 ///
682 /// ### Thread safety
683 /// It is safe to call this function from any thread.
684 ///
685 /// ### Availability
686 /// This function is available since SDL 3.2.0.
687 pub fn SDL_GlobDirectory(
688 path: *const ::core::ffi::c_char,
689 pattern: *const ::core::ffi::c_char,
690 flags: SDL_GlobFlags,
691 count: *mut ::core::ffi::c_int,
692 ) -> *mut *mut ::core::ffi::c_char;
693}
694
695extern "C" {
696 /// Get what the system believes is the "current working directory."
697 ///
698 /// For systems without a concept of a current working directory, this will
699 /// still attempt to provide something reasonable.
700 ///
701 /// SDL does not provide a means to _change_ the current working directory; for
702 /// platforms without this concept, this would cause surprises with file access
703 /// outside of SDL.
704 ///
705 /// The returned path is guaranteed to end with a path separator ('\\' on
706 /// Windows, '/' on most other platforms).
707 ///
708 /// ### Return value
709 /// Returns a UTF-8 string of the current working directory in
710 /// platform-dependent notation. NULL if there's a problem. This
711 /// should be freed with [`SDL_free()`] when it is no longer needed.
712 ///
713 /// ### Availability
714 /// This function is available since SDL 3.2.0.
715 pub fn SDL_GetCurrentDirectory() -> *mut ::core::ffi::c_char;
716}
717
718#[cfg(doc)]
719use crate::everything::*;