mirror of
https://github.com/TerryCavanagh/VVVVVV.git
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3855 lines
158 KiB
C
3855 lines
158 KiB
C
/**
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* \file physfs.h
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*
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* Main header file for PhysicsFS.
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*/
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/**
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* \mainpage PhysicsFS
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*
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* The latest version of PhysicsFS can be found at:
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* https://icculus.org/physfs/
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*
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* PhysicsFS; a portable, flexible file i/o abstraction.
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*
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* This API gives you access to a system file system in ways superior to the
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* stdio or system i/o calls. The brief benefits:
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*
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* - It's portable.
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* - It's safe. No file access is permitted outside the specified dirs.
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* - It's flexible. Archives (.ZIP files) can be used transparently as
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* directory structures.
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*
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* With PhysicsFS, you have a single writing directory and multiple
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* directories (the "search path") for reading. You can think of this as a
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* filesystem within a filesystem. If (on Windows) you were to set the
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* writing directory to "C:\MyGame\MyWritingDirectory", then no PHYSFS calls
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* could touch anything above this directory, including the "C:\MyGame" and
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* "C:\" directories. This prevents an application's internal scripting
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* language from piddling over c:\\config.sys, for example. If you'd rather
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* give PHYSFS full access to the system's REAL file system, set the writing
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* dir to "C:\", but that's generally A Bad Thing for several reasons.
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*
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* Drive letters are hidden in PhysicsFS once you set up your initial paths.
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* The search path creates a single, hierarchical directory structure.
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* Not only does this lend itself well to general abstraction with archives,
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* it also gives better support to operating systems like MacOS and Unix.
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* Generally speaking, you shouldn't ever hardcode a drive letter; not only
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* does this hurt portability to non-Microsoft OSes, but it limits your win32
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* users to a single drive, too. Use the PhysicsFS abstraction functions and
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* allow user-defined configuration options, too. When opening a file, you
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* specify it like it was on a Unix filesystem: if you want to write to
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* "C:\MyGame\MyConfigFiles\game.cfg", then you might set the write dir to
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* "C:\MyGame" and then open "MyConfigFiles/game.cfg". This gives an
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* abstraction across all platforms. Specifying a file in this way is termed
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* "platform-independent notation" in this documentation. Specifying a
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* a filename in a form such as "C:\mydir\myfile" or
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* "MacOS hard drive:My Directory:My File" is termed "platform-dependent
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* notation". The only time you use platform-dependent notation is when
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* setting up your write directory and search path; after that, all file
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* access into those directories are done with platform-independent notation.
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*
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* All files opened for writing are opened in relation to the write directory,
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* which is the root of the writable filesystem. When opening a file for
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* reading, PhysicsFS goes through the search path. This is NOT the
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* same thing as the PATH environment variable. An application using
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* PhysicsFS specifies directories to be searched which may be actual
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* directories, or archive files that contain files and subdirectories of
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* their own. See the end of these docs for currently supported archive
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* formats.
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*
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* Once the search path is defined, you may open files for reading. If you've
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* got the following search path defined (to use a win32 example again):
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*
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* - C:\\mygame
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* - C:\\mygame\\myuserfiles
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* - D:\\mygamescdromdatafiles
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* - C:\\mygame\\installeddatafiles.zip
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*
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* Then a call to PHYSFS_openRead("textfiles/myfile.txt") (note the directory
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* separator, lack of drive letter, and lack of dir separator at the start of
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* the string; this is platform-independent notation) will check for
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* C:\\mygame\\textfiles\\myfile.txt, then
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* C:\\mygame\\myuserfiles\\textfiles\\myfile.txt, then
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* D:\\mygamescdromdatafiles\\textfiles\\myfile.txt, then, finally, for
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* textfiles\\myfile.txt inside of C:\\mygame\\installeddatafiles.zip.
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* Remember that most archive types and platform filesystems store their
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* filenames in a case-sensitive manner, so you should be careful to specify
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* it correctly.
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*
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* Files opened through PhysicsFS may NOT contain "." or ".." or ":" as dir
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* elements. Not only are these meaningless on MacOS Classic and/or Unix,
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* they are a security hole. Also, symbolic links (which can be found in
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* some archive types and directly in the filesystem on Unix platforms) are
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* NOT followed until you call PHYSFS_permitSymbolicLinks(). That's left to
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* your own discretion, as following a symlink can allow for access outside
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* the write dir and search paths. For portability, there is no mechanism for
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* creating new symlinks in PhysicsFS.
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*
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* The write dir is not included in the search path unless you specifically
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* add it. While you CAN change the write dir as many times as you like,
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* you should probably set it once and stick to it. Remember that your
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* program will not have permission to write in every directory on Unix and
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* NT systems.
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*
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* All files are opened in binary mode; there is no endline conversion for
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* textfiles. Other than that, PhysicsFS has some convenience functions for
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* platform-independence. There is a function to tell you the current
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* platform's dir separator ("\\" on windows, "/" on Unix, ":" on MacOS),
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* which is needed only to set up your search/write paths. There is a
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* function to tell you what CD-ROM drives contain accessible discs, and a
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* function to recommend a good search path, etc.
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*
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* A recommended order for the search path is the write dir, then the base dir,
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* then the cdrom dir, then any archives discovered. Quake 3 does something
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* like this, but moves the archives to the start of the search path. Build
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* Engine games, like Duke Nukem 3D and Blood, place the archives last, and
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* use the base dir for both searching and writing. There is a helper
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* function (PHYSFS_setSaneConfig()) that puts together a basic configuration
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* for you, based on a few parameters. Also see the comments on
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* PHYSFS_getBaseDir(), and PHYSFS_getPrefDir() for info on what those
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* are and how they can help you determine an optimal search path.
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*
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* PhysicsFS 2.0 adds the concept of "mounting" archives to arbitrary points
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* in the search path. If a zipfile contains "maps/level.map" and you mount
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* that archive at "mods/mymod", then you would have to open
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* "mods/mymod/maps/level.map" to access the file, even though "mods/mymod"
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* isn't actually specified in the .zip file. Unlike the Unix mentality of
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* mounting a filesystem, "mods/mymod" doesn't actually have to exist when
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* mounting the zipfile. It's a "virtual" directory. The mounting mechanism
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* allows the developer to seperate archives in the tree and avoid trampling
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* over files when added new archives, such as including mod support in a
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* game...keeping external content on a tight leash in this manner can be of
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* utmost importance to some applications.
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*
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* PhysicsFS is mostly thread safe. The errors returned by
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* PHYSFS_getLastErrorCode() are unique by thread, and library-state-setting
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* functions are mutex'd. For efficiency, individual file accesses are
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* not locked, so you can not safely read/write/seek/close/etc the same
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* file from two threads at the same time. Other race conditions are bugs
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* that should be reported/patched.
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*
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* While you CAN use stdio/syscall file access in a program that has PHYSFS_*
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* calls, doing so is not recommended, and you can not directly use system
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* filehandles with PhysicsFS and vice versa (but as of PhysicsFS 2.1, you
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* can wrap them in a PHYSFS_Io interface yourself if you wanted to).
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*
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* Note that archives need not be named as such: if you have a ZIP file and
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* rename it with a .PKG extension, the file will still be recognized as a
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* ZIP archive by PhysicsFS; the file's contents are used to determine its
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* type where possible.
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*
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* Currently supported archive types:
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* - .ZIP (pkZip/WinZip/Info-ZIP compatible)
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* - .7Z (7zip archives)
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* - .ISO (ISO9660 files, CD-ROM images)
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* - .GRP (Build Engine groupfile archives)
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* - .PAK (Quake I/II archive format)
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* - .HOG (Descent I/II HOG file archives)
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* - .MVL (Descent II movielib archives)
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* - .WAD (DOOM engine archives)
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* - .VDF (Gothic I/II engine archives)
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* - .SLB (Independence War archives)
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*
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* String policy for PhysicsFS 2.0 and later:
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*
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* PhysicsFS 1.0 could only deal with null-terminated ASCII strings. All high
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* ASCII chars resulted in undefined behaviour, and there was no Unicode
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* support at all. PhysicsFS 2.0 supports Unicode without breaking binary
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* compatibility with the 1.0 API by using UTF-8 encoding of all strings
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* passed in and out of the library.
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*
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* All strings passed through PhysicsFS are in null-terminated UTF-8 format.
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* This means that if all you care about is English (ASCII characters <= 127)
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* then you just use regular C strings. If you care about Unicode (and you
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* should!) then you need to figure out what your platform wants, needs, and
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* offers. If you are on Windows before Win2000 and build with Unicode
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* support, your TCHAR strings are two bytes per character (this is called
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* "UCS-2 encoding"). Any modern Windows uses UTF-16, which is two bytes
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* per character for most characters, but some characters are four. You
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* should convert them to UTF-8 before handing them to PhysicsFS with
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* PHYSFS_utf8FromUtf16(), which handles both UTF-16 and UCS-2. If you're
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* using Unix or Mac OS X, your wchar_t strings are four bytes per character
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* ("UCS-4 encoding", sometimes called "UTF-32"). Use PHYSFS_utf8FromUcs4().
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* Mac OS X can give you UTF-8 directly from a CFString or NSString, and many
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* Unixes generally give you C strings in UTF-8 format everywhere. If you
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* have a single-byte high ASCII charset, like so-many European "codepages"
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* you may be out of luck. We'll convert from "Latin1" to UTF-8 only, and
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* never back to Latin1. If you're above ASCII 127, all bets are off: move
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* to Unicode or use your platform's facilities. Passing a C string with
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* high-ASCII data that isn't UTF-8 encoded will NOT do what you expect!
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*
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* Naturally, there's also PHYSFS_utf8ToUcs2(), PHYSFS_utf8ToUtf16(), and
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* PHYSFS_utf8ToUcs4() to get data back into a format you like. Behind the
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* scenes, PhysicsFS will use Unicode where possible: the UTF-8 strings on
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* Windows will be converted and used with the multibyte Windows APIs, for
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* example.
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*
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* PhysicsFS offers basic encoding conversion support, but not a whole string
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* library. Get your stuff into whatever format you can work with.
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*
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* Most platforms supported by PhysicsFS 2.1 and later fully support Unicode.
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* Some older platforms have been dropped (Windows 95, Mac OS 9). Some, like
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* OS/2, might be able to convert to a local codepage or will just fail to
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* open/create the file. Modern OSes (macOS, Linux, Windows, etc) should all
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* be fine.
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*
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* Many game-specific archivers are seriously unprepared for Unicode (the
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* Descent HOG/MVL and Build Engine GRP archivers, for example, only offer a
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* DOS 8.3 filename, for example). Nothing can be done for these, but they
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* tend to be legacy formats for existing content that was all ASCII (and
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* thus, valid UTF-8) anyhow. Other formats, like .ZIP, don't explicitly
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* offer Unicode support, but unofficially expect filenames to be UTF-8
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* encoded, and thus Just Work. Most everything does the right thing without
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* bothering you, but it's good to be aware of these nuances in case they
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* don't.
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*
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*
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* Other stuff:
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*
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* Please see the file LICENSE.txt in the source's root directory for
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* licensing and redistribution rights.
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*
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* Please see the file CREDITS.txt in the source's "docs" directory for
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* a more or less complete list of who's responsible for this.
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*
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* \author Ryan C. Gordon.
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*/
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#ifndef _INCLUDE_PHYSFS_H_
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#define _INCLUDE_PHYSFS_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(PHYSFS_DECL)
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/* do nothing. */
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#elif defined(_MSC_VER)
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#define PHYSFS_DECL __declspec(dllexport)
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#elif defined(__SUNPRO_C)
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#define PHYSFS_DECL __global
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#elif ((__GNUC__ >= 3) && (!defined(__EMX__)) && (!defined(sun)))
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#define PHYSFS_DECL __attribute__((visibility("default")))
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#else
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#define PHYSFS_DECL
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#endif
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#if defined(PHYSFS_DEPRECATED)
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/* do nothing. */
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#elif (__GNUC__ >= 4) /* technically, this arrived in gcc 3.1, but oh well. */
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#define PHYSFS_DEPRECATED __attribute__((deprecated))
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#else
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#define PHYSFS_DEPRECATED
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#endif
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#if 0 /* !!! FIXME: look into this later. */
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#if defined(PHYSFS_CALL)
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/* do nothing. */
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#elif defined(__WIN32__) && !defined(__GNUC__)
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#define PHYSFS_CALL __cdecl
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#elif defined(__OS2__) || defined(OS2) /* should work across all compilers. */
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#define PHYSFS_CALL _System
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#else
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#define PHYSFS_CALL
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#endif
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#endif
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/**
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* \typedef PHYSFS_uint8
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* \brief An unsigned, 8-bit integer type.
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*/
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typedef unsigned char PHYSFS_uint8;
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/**
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* \typedef PHYSFS_sint8
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* \brief A signed, 8-bit integer type.
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*/
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typedef signed char PHYSFS_sint8;
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/**
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* \typedef PHYSFS_uint16
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* \brief An unsigned, 16-bit integer type.
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*/
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typedef unsigned short PHYSFS_uint16;
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/**
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* \typedef PHYSFS_sint16
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* \brief A signed, 16-bit integer type.
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*/
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typedef signed short PHYSFS_sint16;
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/**
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* \typedef PHYSFS_uint32
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* \brief An unsigned, 32-bit integer type.
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*/
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typedef unsigned int PHYSFS_uint32;
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/**
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* \typedef PHYSFS_sint32
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* \brief A signed, 32-bit integer type.
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*/
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typedef signed int PHYSFS_sint32;
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/**
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* \typedef PHYSFS_uint64
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* \brief An unsigned, 64-bit integer type.
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* \warning on platforms without any sort of 64-bit datatype, this is
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* equivalent to PHYSFS_uint32!
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*/
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/**
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* \typedef PHYSFS_sint64
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* \brief A signed, 64-bit integer type.
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* \warning on platforms without any sort of 64-bit datatype, this is
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* equivalent to PHYSFS_sint32!
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*/
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#if (defined PHYSFS_NO_64BIT_SUPPORT) /* oh well. */
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typedef PHYSFS_uint32 PHYSFS_uint64;
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typedef PHYSFS_sint32 PHYSFS_sint64;
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#elif (defined _MSC_VER)
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typedef signed __int64 PHYSFS_sint64;
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typedef unsigned __int64 PHYSFS_uint64;
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#else
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typedef unsigned long long PHYSFS_uint64;
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typedef signed long long PHYSFS_sint64;
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#endif
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#ifndef DOXYGEN_SHOULD_IGNORE_THIS
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/* Make sure the types really have the right sizes */
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#define PHYSFS_COMPILE_TIME_ASSERT(name, x) \
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typedef int PHYSFS_compile_time_assert_##name[(x) * 2 - 1]
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PHYSFS_COMPILE_TIME_ASSERT(uint8IsOneByte, sizeof(PHYSFS_uint8) == 1);
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PHYSFS_COMPILE_TIME_ASSERT(sint8IsOneByte, sizeof(PHYSFS_sint8) == 1);
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PHYSFS_COMPILE_TIME_ASSERT(uint16IsTwoBytes, sizeof(PHYSFS_uint16) == 2);
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PHYSFS_COMPILE_TIME_ASSERT(sint16IsTwoBytes, sizeof(PHYSFS_sint16) == 2);
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PHYSFS_COMPILE_TIME_ASSERT(uint32IsFourBytes, sizeof(PHYSFS_uint32) == 4);
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PHYSFS_COMPILE_TIME_ASSERT(sint32IsFourBytes, sizeof(PHYSFS_sint32) == 4);
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#ifndef PHYSFS_NO_64BIT_SUPPORT
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PHYSFS_COMPILE_TIME_ASSERT(uint64IsEightBytes, sizeof(PHYSFS_uint64) == 8);
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PHYSFS_COMPILE_TIME_ASSERT(sint64IsEightBytes, sizeof(PHYSFS_sint64) == 8);
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#endif
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#undef PHYSFS_COMPILE_TIME_ASSERT
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#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
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/**
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* \struct PHYSFS_File
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* \brief A PhysicsFS file handle.
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*
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* You get a pointer to one of these when you open a file for reading,
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* writing, or appending via PhysicsFS.
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*
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* As you can see from the lack of meaningful fields, you should treat this
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* as opaque data. Don't try to manipulate the file handle, just pass the
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* pointer you got, unmolested, to various PhysicsFS APIs.
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*
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* \sa PHYSFS_openRead
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* \sa PHYSFS_openWrite
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* \sa PHYSFS_openAppend
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* \sa PHYSFS_close
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* \sa PHYSFS_read
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* \sa PHYSFS_write
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* \sa PHYSFS_seek
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* \sa PHYSFS_tell
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* \sa PHYSFS_eof
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* \sa PHYSFS_setBuffer
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* \sa PHYSFS_flush
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*/
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typedef struct PHYSFS_File
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{
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void *opaque; /**< That's all you get. Don't touch. */
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} PHYSFS_File;
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/**
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* \def PHYSFS_file
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* \brief 1.0 API compatibility define.
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*
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* PHYSFS_file is identical to PHYSFS_File. This #define is here for backwards
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* compatibility with the 1.0 API, which had an inconsistent capitalization
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* convention in this case. New code should use PHYSFS_File, as this #define
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* may go away someday.
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*
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* \sa PHYSFS_File
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*/
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#define PHYSFS_file PHYSFS_File
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/**
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* \struct PHYSFS_ArchiveInfo
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* \brief Information on various PhysicsFS-supported archives.
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*
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* This structure gives you details on what sort of archives are supported
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* by this implementation of PhysicsFS. Archives tend to be things like
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* ZIP files and such.
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*
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* \warning Not all binaries are created equal! PhysicsFS can be built with
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* or without support for various archives. You can check with
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* PHYSFS_supportedArchiveTypes() to see if your archive type is
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* supported.
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*
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* \sa PHYSFS_supportedArchiveTypes
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* \sa PHYSFS_registerArchiver
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* \sa PHYSFS_deregisterArchiver
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*/
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typedef struct PHYSFS_ArchiveInfo
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{
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const char *extension; /**< Archive file extension: "ZIP", for example. */
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const char *description; /**< Human-readable archive description. */
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const char *author; /**< Person who did support for this archive. */
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const char *url; /**< URL related to this archive */
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int supportsSymlinks; /**< non-zero if archive offers symbolic links. */
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} PHYSFS_ArchiveInfo;
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/**
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* \struct PHYSFS_Version
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* \brief Information the version of PhysicsFS in use.
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*
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* Represents the library's version as three levels: major revision
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* (increments with massive changes, additions, and enhancements),
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* minor revision (increments with backwards-compatible changes to the
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* major revision), and patchlevel (increments with fixes to the minor
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* revision).
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*
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* \sa PHYSFS_VERSION
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* \sa PHYSFS_getLinkedVersion
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*/
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typedef struct PHYSFS_Version
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{
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PHYSFS_uint8 major; /**< major revision */
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PHYSFS_uint8 minor; /**< minor revision */
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PHYSFS_uint8 patch; /**< patchlevel */
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} PHYSFS_Version;
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#ifndef DOXYGEN_SHOULD_IGNORE_THIS
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#define PHYSFS_VER_MAJOR 3
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#define PHYSFS_VER_MINOR 0
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#define PHYSFS_VER_PATCH 2
|
|
#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
|
|
|
|
|
|
/* PhysicsFS state stuff ... */
|
|
|
|
/**
|
|
* \def PHYSFS_VERSION(x)
|
|
* \brief Macro to determine PhysicsFS version program was compiled against.
|
|
*
|
|
* This macro fills in a PHYSFS_Version structure with the version of the
|
|
* library you compiled against. This is determined by what header the
|
|
* compiler uses. Note that if you dynamically linked the library, you might
|
|
* have a slightly newer or older version at runtime. That version can be
|
|
* determined with PHYSFS_getLinkedVersion(), which, unlike PHYSFS_VERSION,
|
|
* is not a macro.
|
|
*
|
|
* \param x A pointer to a PHYSFS_Version struct to initialize.
|
|
*
|
|
* \sa PHYSFS_Version
|
|
* \sa PHYSFS_getLinkedVersion
|
|
*/
|
|
#define PHYSFS_VERSION(x) \
|
|
{ \
|
|
(x)->major = PHYSFS_VER_MAJOR; \
|
|
(x)->minor = PHYSFS_VER_MINOR; \
|
|
(x)->patch = PHYSFS_VER_PATCH; \
|
|
}
|
|
|
|
|
|
/**
|
|
* \fn void PHYSFS_getLinkedVersion(PHYSFS_Version *ver)
|
|
* \brief Get the version of PhysicsFS that is linked against your program.
|
|
*
|
|
* If you are using a shared library (DLL) version of PhysFS, then it is
|
|
* possible that it will be different than the version you compiled against.
|
|
*
|
|
* This is a real function; the macro PHYSFS_VERSION tells you what version
|
|
* of PhysFS you compiled against:
|
|
*
|
|
* \code
|
|
* PHYSFS_Version compiled;
|
|
* PHYSFS_Version linked;
|
|
*
|
|
* PHYSFS_VERSION(&compiled);
|
|
* PHYSFS_getLinkedVersion(&linked);
|
|
* printf("We compiled against PhysFS version %d.%d.%d ...\n",
|
|
* compiled.major, compiled.minor, compiled.patch);
|
|
* printf("But we linked against PhysFS version %d.%d.%d.\n",
|
|
* linked.major, linked.minor, linked.patch);
|
|
* \endcode
|
|
*
|
|
* This function may be called safely at any time, even before PHYSFS_init().
|
|
*
|
|
* \sa PHYSFS_VERSION
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_getLinkedVersion(PHYSFS_Version *ver);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_init(const char *argv0)
|
|
* \brief Initialize the PhysicsFS library.
|
|
*
|
|
* This must be called before any other PhysicsFS function.
|
|
*
|
|
* This should be called prior to any attempts to change your process's
|
|
* current working directory.
|
|
*
|
|
* \param argv0 the argv[0] string passed to your program's mainline.
|
|
* This may be NULL on most platforms (such as ones without a
|
|
* standard main() function), but you should always try to pass
|
|
* something in here. Unix-like systems such as Linux _need_ to
|
|
* pass argv[0] from main() in here.
|
|
* \return nonzero on success, zero on error. Specifics of the error can be
|
|
* gleaned from PHYSFS_getLastError().
|
|
*
|
|
* \sa PHYSFS_deinit
|
|
* \sa PHYSFS_isInit
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_init(const char *argv0);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_deinit(void)
|
|
* \brief Deinitialize the PhysicsFS library.
|
|
*
|
|
* This closes any files opened via PhysicsFS, blanks the search/write paths,
|
|
* frees memory, and invalidates all of your file handles.
|
|
*
|
|
* Note that this call can FAIL if there's a file open for writing that
|
|
* refuses to close (for example, the underlying operating system was
|
|
* buffering writes to network filesystem, and the fileserver has crashed,
|
|
* or a hard drive has failed, etc). It is usually best to close all write
|
|
* handles yourself before calling this function, so that you can gracefully
|
|
* handle a specific failure.
|
|
*
|
|
* Once successfully deinitialized, PHYSFS_init() can be called again to
|
|
* restart the subsystem. All default API states are restored at this
|
|
* point, with the exception of any custom allocator you might have
|
|
* specified, which survives between initializations.
|
|
*
|
|
* \return nonzero on success, zero on error. Specifics of the error can be
|
|
* gleaned from PHYSFS_getLastError(). If failure, state of PhysFS is
|
|
* undefined, and probably badly screwed up.
|
|
*
|
|
* \sa PHYSFS_init
|
|
* \sa PHYSFS_isInit
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_deinit(void);
|
|
|
|
|
|
/**
|
|
* \fn const PHYSFS_ArchiveInfo **PHYSFS_supportedArchiveTypes(void)
|
|
* \brief Get a list of supported archive types.
|
|
*
|
|
* Get a list of archive types supported by this implementation of PhysicFS.
|
|
* These are the file formats usable for search path entries. This is for
|
|
* informational purposes only. Note that the extension listed is merely
|
|
* convention: if we list "ZIP", you can open a PkZip-compatible archive
|
|
* with an extension of "XYZ", if you like.
|
|
*
|
|
* The returned value is an array of pointers to PHYSFS_ArchiveInfo structures,
|
|
* with a NULL entry to signify the end of the list:
|
|
*
|
|
* \code
|
|
* PHYSFS_ArchiveInfo **i;
|
|
*
|
|
* for (i = PHYSFS_supportedArchiveTypes(); *i != NULL; i++)
|
|
* {
|
|
* printf("Supported archive: [%s], which is [%s].\n",
|
|
* (*i)->extension, (*i)->description);
|
|
* }
|
|
* \endcode
|
|
*
|
|
* The return values are pointers to internal memory, and should
|
|
* be considered READ ONLY, and never freed. The returned values are
|
|
* valid until the next call to PHYSFS_deinit(), PHYSFS_registerArchiver(),
|
|
* or PHYSFS_deregisterArchiver().
|
|
*
|
|
* \return READ ONLY Null-terminated array of READ ONLY structures.
|
|
*
|
|
* \sa PHYSFS_registerArchiver
|
|
* \sa PHYSFS_deregisterArchiver
|
|
*/
|
|
PHYSFS_DECL const PHYSFS_ArchiveInfo **PHYSFS_supportedArchiveTypes(void);
|
|
|
|
|
|
/**
|
|
* \fn void PHYSFS_freeList(void *listVar)
|
|
* \brief Deallocate resources of lists returned by PhysicsFS.
|
|
*
|
|
* Certain PhysicsFS functions return lists of information that are
|
|
* dynamically allocated. Use this function to free those resources.
|
|
*
|
|
* It is safe to pass a NULL here, but doing so will cause a crash in versions
|
|
* before PhysicsFS 2.1.0.
|
|
*
|
|
* \param listVar List of information specified as freeable by this function.
|
|
* Passing NULL is safe; it is a valid no-op.
|
|
*
|
|
* \sa PHYSFS_getCdRomDirs
|
|
* \sa PHYSFS_enumerateFiles
|
|
* \sa PHYSFS_getSearchPath
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_freeList(void *listVar);
|
|
|
|
|
|
/**
|
|
* \fn const char *PHYSFS_getLastError(void)
|
|
* \brief Get human-readable error information.
|
|
*
|
|
* \deprecated Use PHYSFS_getLastErrorCode() and PHYSFS_getErrorByCode() instead.
|
|
*
|
|
* \warning As of PhysicsFS 2.1, this function has been nerfed.
|
|
* Before PhysicsFS 2.1, this function was the only way to get
|
|
* error details beyond a given function's basic return value.
|
|
* This was meant to be a human-readable string in one of several
|
|
* languages, and was not useful for application parsing. This was
|
|
* a problem, because the developer and not the user chose the
|
|
* language at compile time, and the PhysicsFS maintainers had
|
|
* to (poorly) maintain a significant amount of localization work.
|
|
* The app couldn't parse the strings, even if they counted on a
|
|
* specific language, since some were dynamically generated.
|
|
* In 2.1 and later, this always returns a static string in
|
|
* English; you may use it as a key string for your own
|
|
* localizations if you like, as we'll promise not to change
|
|
* existing error strings. Also, if your application wants to
|
|
* look at specific errors, we now offer a better option:
|
|
* use PHYSFS_getLastErrorCode() instead.
|
|
*
|
|
* Get the last PhysicsFS error message as a human-readable, null-terminated
|
|
* string. This will return NULL if there's been no error since the last call
|
|
* to this function. The pointer returned by this call points to an internal
|
|
* buffer. Each thread has a unique error state associated with it, but each
|
|
* time a new error message is set, it will overwrite the previous one
|
|
* associated with that thread. It is safe to call this function at anytime,
|
|
* even before PHYSFS_init().
|
|
*
|
|
* PHYSFS_getLastError() and PHYSFS_getLastErrorCode() both reset the same
|
|
* thread-specific error state. Calling one will wipe out the other's
|
|
* data. If you need both, call PHYSFS_getLastErrorCode(), then pass that
|
|
* value to PHYSFS_getErrorByCode().
|
|
*
|
|
* As of PhysicsFS 2.1, this function only presents text in the English
|
|
* language, but the strings are static, so you can use them as keys into
|
|
* your own localization dictionary. These strings are meant to be passed on
|
|
* directly to the user.
|
|
*
|
|
* Generally, applications should only concern themselves with whether a
|
|
* given function failed; however, if your code require more specifics, you
|
|
* should use PHYSFS_getLastErrorCode() instead of this function.
|
|
*
|
|
* \return READ ONLY string of last error message.
|
|
*
|
|
* \sa PHYSFS_getLastErrorCode
|
|
* \sa PHYSFS_getErrorByCode
|
|
*/
|
|
PHYSFS_DECL const char *PHYSFS_getLastError(void) PHYSFS_DEPRECATED;
|
|
|
|
|
|
/**
|
|
* \fn const char *PHYSFS_getDirSeparator(void)
|
|
* \brief Get platform-dependent dir separator string.
|
|
*
|
|
* This returns "\\" on win32, "/" on Unix, and ":" on MacOS. It may be more
|
|
* than one character, depending on the platform, and your code should take
|
|
* that into account. Note that this is only useful for setting up the
|
|
* search/write paths, since access into those dirs always use '/'
|
|
* (platform-independent notation) to separate directories. This is also
|
|
* handy for getting platform-independent access when using stdio calls.
|
|
*
|
|
* \return READ ONLY null-terminated string of platform's dir separator.
|
|
*/
|
|
PHYSFS_DECL const char *PHYSFS_getDirSeparator(void);
|
|
|
|
|
|
/**
|
|
* \fn void PHYSFS_permitSymbolicLinks(int allow)
|
|
* \brief Enable or disable following of symbolic links.
|
|
*
|
|
* Some physical filesystems and archives contain files that are just pointers
|
|
* to other files. On the physical filesystem, opening such a link will
|
|
* (transparently) open the file that is pointed to.
|
|
*
|
|
* By default, PhysicsFS will check if a file is really a symlink during open
|
|
* calls and fail if it is. Otherwise, the link could take you outside the
|
|
* write and search paths, and compromise security.
|
|
*
|
|
* If you want to take that risk, call this function with a non-zero parameter.
|
|
* Note that this is more for sandboxing a program's scripting language, in
|
|
* case untrusted scripts try to compromise the system. Generally speaking,
|
|
* a user could very well have a legitimate reason to set up a symlink, so
|
|
* unless you feel there's a specific danger in allowing them, you should
|
|
* permit them.
|
|
*
|
|
* Symlinks are only explicitly checked when dealing with filenames
|
|
* in platform-independent notation. That is, when setting up your
|
|
* search and write paths, etc, symlinks are never checked for.
|
|
*
|
|
* Please note that PHYSFS_stat() will always check the path specified; if
|
|
* that path is a symlink, it will not be followed in any case. If symlinks
|
|
* aren't permitted through this function, PHYSFS_stat() ignores them, and
|
|
* would treat the query as if the path didn't exist at all.
|
|
*
|
|
* Symbolic link permission can be enabled or disabled at any time after
|
|
* you've called PHYSFS_init(), and is disabled by default.
|
|
*
|
|
* \param allow nonzero to permit symlinks, zero to deny linking.
|
|
*
|
|
* \sa PHYSFS_symbolicLinksPermitted
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_permitSymbolicLinks(int allow);
|
|
|
|
|
|
/**
|
|
* \fn char **PHYSFS_getCdRomDirs(void)
|
|
* \brief Get an array of paths to available CD-ROM drives.
|
|
*
|
|
* The dirs returned are platform-dependent ("D:\" on Win32, "/cdrom" or
|
|
* whatnot on Unix). Dirs are only returned if there is a disc ready and
|
|
* accessible in the drive. So if you've got two drives (D: and E:), and only
|
|
* E: has a disc in it, then that's all you get. If the user inserts a disc
|
|
* in D: and you call this function again, you get both drives. If, on a
|
|
* Unix box, the user unmounts a disc and remounts it elsewhere, the next
|
|
* call to this function will reflect that change.
|
|
*
|
|
* This function refers to "CD-ROM" media, but it really means "inserted disc
|
|
* media," such as DVD-ROM, HD-DVD, CDRW, and Blu-Ray discs. It looks for
|
|
* filesystems, and as such won't report an audio CD, unless there's a
|
|
* mounted filesystem track on it.
|
|
*
|
|
* The returned value is an array of strings, with a NULL entry to signify the
|
|
* end of the list:
|
|
*
|
|
* \code
|
|
* char **cds = PHYSFS_getCdRomDirs();
|
|
* char **i;
|
|
*
|
|
* for (i = cds; *i != NULL; i++)
|
|
* printf("cdrom dir [%s] is available.\n", *i);
|
|
*
|
|
* PHYSFS_freeList(cds);
|
|
* \endcode
|
|
*
|
|
* This call may block while drives spin up. Be forewarned.
|
|
*
|
|
* When you are done with the returned information, you may dispose of the
|
|
* resources by calling PHYSFS_freeList() with the returned pointer.
|
|
*
|
|
* \return Null-terminated array of null-terminated strings.
|
|
*
|
|
* \sa PHYSFS_getCdRomDirsCallback
|
|
*/
|
|
PHYSFS_DECL char **PHYSFS_getCdRomDirs(void);
|
|
|
|
|
|
/**
|
|
* \fn const char *PHYSFS_getBaseDir(void)
|
|
* \brief Get the path where the application resides.
|
|
*
|
|
* Helper function.
|
|
*
|
|
* Get the "base dir". This is the directory where the application was run
|
|
* from, which is probably the installation directory, and may or may not
|
|
* be the process's current working directory.
|
|
*
|
|
* You should probably use the base dir in your search path.
|
|
*
|
|
* \return READ ONLY string of base dir in platform-dependent notation.
|
|
*
|
|
* \sa PHYSFS_getPrefDir
|
|
*/
|
|
PHYSFS_DECL const char *PHYSFS_getBaseDir(void);
|
|
|
|
|
|
/**
|
|
* \fn const char *PHYSFS_getUserDir(void)
|
|
* \brief Get the path where user's home directory resides.
|
|
*
|
|
* \deprecated As of PhysicsFS 2.1, you probably want PHYSFS_getPrefDir().
|
|
*
|
|
* Helper function.
|
|
*
|
|
* Get the "user dir". This is meant to be a suggestion of where a specific
|
|
* user of the system can store files. On Unix, this is her home directory.
|
|
* On systems with no concept of multiple home directories (MacOS, win95),
|
|
* this will default to something like "C:\mybasedir\users\username"
|
|
* where "username" will either be the login name, or "default" if the
|
|
* platform doesn't support multiple users, either.
|
|
*
|
|
* \return READ ONLY string of user dir in platform-dependent notation.
|
|
*
|
|
* \sa PHYSFS_getBaseDir
|
|
* \sa PHYSFS_getPrefDir
|
|
*/
|
|
PHYSFS_DECL const char *PHYSFS_getUserDir(void) PHYSFS_DEPRECATED;
|
|
|
|
|
|
/**
|
|
* \fn const char *PHYSFS_getWriteDir(void)
|
|
* \brief Get path where PhysicsFS will allow file writing.
|
|
*
|
|
* Get the current write dir. The default write dir is NULL.
|
|
*
|
|
* \return READ ONLY string of write dir in platform-dependent notation,
|
|
* OR NULL IF NO WRITE PATH IS CURRENTLY SET.
|
|
*
|
|
* \sa PHYSFS_setWriteDir
|
|
*/
|
|
PHYSFS_DECL const char *PHYSFS_getWriteDir(void);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_setWriteDir(const char *newDir)
|
|
* \brief Tell PhysicsFS where it may write files.
|
|
*
|
|
* Set a new write dir. This will override the previous setting.
|
|
*
|
|
* This call will fail (and fail to change the write dir) if the current
|
|
* write dir still has files open in it.
|
|
*
|
|
* \param newDir The new directory to be the root of the write dir,
|
|
* specified in platform-dependent notation. Setting to NULL
|
|
* disables the write dir, so no files can be opened for
|
|
* writing via PhysicsFS.
|
|
* \return non-zero on success, zero on failure. All attempts to open a file
|
|
* for writing via PhysicsFS will fail until this call succeeds.
|
|
* Use PHYSFS_getLastErrorCode() to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_getWriteDir
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_setWriteDir(const char *newDir);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_addToSearchPath(const char *newDir, int appendToPath)
|
|
* \brief Add an archive or directory to the search path.
|
|
*
|
|
* \deprecated As of PhysicsFS 2.0, use PHYSFS_mount() instead. This
|
|
* function just wraps it anyhow.
|
|
*
|
|
* This function is equivalent to:
|
|
*
|
|
* \code
|
|
* PHYSFS_mount(newDir, NULL, appendToPath);
|
|
* \endcode
|
|
*
|
|
* You must use this and not PHYSFS_mount if binary compatibility with
|
|
* PhysicsFS 1.0 is important (which it may not be for many people).
|
|
*
|
|
* \sa PHYSFS_mount
|
|
* \sa PHYSFS_removeFromSearchPath
|
|
* \sa PHYSFS_getSearchPath
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_addToSearchPath(const char *newDir, int appendToPath)
|
|
PHYSFS_DEPRECATED;
|
|
|
|
/**
|
|
* \fn int PHYSFS_removeFromSearchPath(const char *oldDir)
|
|
* \brief Remove a directory or archive from the search path.
|
|
*
|
|
* \deprecated As of PhysicsFS 2.1, use PHYSFS_unmount() instead. This
|
|
* function just wraps it anyhow. There's no functional difference
|
|
* except the vocabulary changed from "adding to the search path"
|
|
* to "mounting" when that functionality was extended, and thus
|
|
* the preferred way to accomplish this function's work is now
|
|
* called "unmounting."
|
|
*
|
|
* This function is equivalent to:
|
|
*
|
|
* \code
|
|
* PHYSFS_unmount(oldDir);
|
|
* \endcode
|
|
*
|
|
* You must use this and not PHYSFS_unmount if binary compatibility with
|
|
* PhysicsFS 1.0 is important (which it may not be for many people).
|
|
*
|
|
* \sa PHYSFS_addToSearchPath
|
|
* \sa PHYSFS_getSearchPath
|
|
* \sa PHYSFS_unmount
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_removeFromSearchPath(const char *oldDir)
|
|
PHYSFS_DEPRECATED;
|
|
|
|
|
|
/**
|
|
* \fn char **PHYSFS_getSearchPath(void)
|
|
* \brief Get the current search path.
|
|
*
|
|
* The default search path is an empty list.
|
|
*
|
|
* The returned value is an array of strings, with a NULL entry to signify the
|
|
* end of the list:
|
|
*
|
|
* \code
|
|
* char **i;
|
|
*
|
|
* for (i = PHYSFS_getSearchPath(); *i != NULL; i++)
|
|
* printf("[%s] is in the search path.\n", *i);
|
|
* \endcode
|
|
*
|
|
* When you are done with the returned information, you may dispose of the
|
|
* resources by calling PHYSFS_freeList() with the returned pointer.
|
|
*
|
|
* \return Null-terminated array of null-terminated strings. NULL if there
|
|
* was a problem (read: OUT OF MEMORY).
|
|
*
|
|
* \sa PHYSFS_getSearchPathCallback
|
|
* \sa PHYSFS_addToSearchPath
|
|
* \sa PHYSFS_removeFromSearchPath
|
|
*/
|
|
PHYSFS_DECL char **PHYSFS_getSearchPath(void);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_setSaneConfig(const char *organization, const char *appName, const char *archiveExt, int includeCdRoms, int archivesFirst)
|
|
* \brief Set up sane, default paths.
|
|
*
|
|
* Helper function.
|
|
*
|
|
* The write dir will be set to the pref dir returned by
|
|
* \code PHYSFS_getPrefDir(organization, appName) \endcode, which is
|
|
* created if it doesn't exist.
|
|
*
|
|
* The above is sufficient to make sure your program's configuration directory
|
|
* is separated from other clutter, and platform-independent.
|
|
*
|
|
* The search path will be:
|
|
*
|
|
* - The Write Dir (created if it doesn't exist)
|
|
* - The Base Dir (PHYSFS_getBaseDir())
|
|
* - All found CD-ROM dirs (optionally)
|
|
*
|
|
* These directories are then searched for files ending with the extension
|
|
* (archiveExt), which, if they are valid and supported archives, will also
|
|
* be added to the search path. If you specified "PKG" for (archiveExt), and
|
|
* there's a file named data.PKG in the base dir, it'll be checked. Archives
|
|
* can either be appended or prepended to the search path in alphabetical
|
|
* order, regardless of which directories they were found in. All archives
|
|
* are mounted in the root of the virtual file system ("/").
|
|
*
|
|
* All of this can be accomplished from the application, but this just does it
|
|
* all for you. Feel free to add more to the search path manually, too.
|
|
*
|
|
* \param organization Name of your company/group/etc to be used as a
|
|
* dirname, so keep it small, and no-frills.
|
|
*
|
|
* \param appName Program-specific name of your program, to separate it
|
|
* from other programs using PhysicsFS.
|
|
*
|
|
* \param archiveExt File extension used by your program to specify an
|
|
* archive. For example, Quake 3 uses "pk3", even though
|
|
* they are just zipfiles. Specify NULL to not dig out
|
|
* archives automatically. Do not specify the '.' char;
|
|
* If you want to look for ZIP files, specify "ZIP" and
|
|
* not ".ZIP" ... the archive search is case-insensitive.
|
|
*
|
|
* \param includeCdRoms Non-zero to include CD-ROMs in the search path, and
|
|
* (if (archiveExt) != NULL) search them for archives.
|
|
* This may cause a significant amount of blocking
|
|
* while discs are accessed, and if there are no discs
|
|
* in the drive (or even not mounted on Unix systems),
|
|
* then they may not be made available anyhow. You may
|
|
* want to specify zero and handle the disc setup
|
|
* yourself.
|
|
*
|
|
* \param archivesFirst Non-zero to prepend the archives to the search path.
|
|
* Zero to append them. Ignored if !(archiveExt).
|
|
*
|
|
* \return nonzero on success, zero on error. Use PHYSFS_getLastErrorCode()
|
|
* to obtain the specific error.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_setSaneConfig(const char *organization,
|
|
const char *appName,
|
|
const char *archiveExt,
|
|
int includeCdRoms,
|
|
int archivesFirst);
|
|
|
|
|
|
/* Directory management stuff ... */
|
|
|
|
/**
|
|
* \fn int PHYSFS_mkdir(const char *dirName)
|
|
* \brief Create a directory.
|
|
*
|
|
* This is specified in platform-independent notation in relation to the
|
|
* write dir. All missing parent directories are also created if they
|
|
* don't exist.
|
|
*
|
|
* So if you've got the write dir set to "C:\mygame\writedir" and call
|
|
* PHYSFS_mkdir("downloads/maps") then the directories
|
|
* "C:\mygame\writedir\downloads" and "C:\mygame\writedir\downloads\maps"
|
|
* will be created if possible. If the creation of "maps" fails after we
|
|
* have successfully created "downloads", then the function leaves the
|
|
* created directory behind and reports failure.
|
|
*
|
|
* \param dirName New dir to create.
|
|
* \return nonzero on success, zero on error. Use
|
|
* PHYSFS_getLastErrorCode() to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_delete
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_mkdir(const char *dirName);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_delete(const char *filename)
|
|
* \brief Delete a file or directory.
|
|
*
|
|
* (filename) is specified in platform-independent notation in relation to the
|
|
* write dir.
|
|
*
|
|
* A directory must be empty before this call can delete it.
|
|
*
|
|
* Deleting a symlink will remove the link, not what it points to, regardless
|
|
* of whether you "permitSymLinks" or not.
|
|
*
|
|
* So if you've got the write dir set to "C:\mygame\writedir" and call
|
|
* PHYSFS_delete("downloads/maps/level1.map") then the file
|
|
* "C:\mygame\writedir\downloads\maps\level1.map" is removed from the
|
|
* physical filesystem, if it exists and the operating system permits the
|
|
* deletion.
|
|
*
|
|
* Note that on Unix systems, deleting a file may be successful, but the
|
|
* actual file won't be removed until all processes that have an open
|
|
* filehandle to it (including your program) close their handles.
|
|
*
|
|
* Chances are, the bits that make up the file still exist, they are just
|
|
* made available to be written over at a later point. Don't consider this
|
|
* a security method or anything. :)
|
|
*
|
|
* \param filename Filename to delete.
|
|
* \return nonzero on success, zero on error. Use PHYSFS_getLastErrorCode()
|
|
* to obtain the specific error.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_delete(const char *filename);
|
|
|
|
|
|
/**
|
|
* \fn const char *PHYSFS_getRealDir(const char *filename)
|
|
* \brief Figure out where in the search path a file resides.
|
|
*
|
|
* The file is specified in platform-independent notation. The returned
|
|
* filename will be the element of the search path where the file was found,
|
|
* which may be a directory, or an archive. Even if there are multiple
|
|
* matches in different parts of the search path, only the first one found
|
|
* is used, just like when opening a file.
|
|
*
|
|
* So, if you look for "maps/level1.map", and C:\\mygame is in your search
|
|
* path and C:\\mygame\\maps\\level1.map exists, then "C:\mygame" is returned.
|
|
*
|
|
* If a any part of a match is a symbolic link, and you've not explicitly
|
|
* permitted symlinks, then it will be ignored, and the search for a match
|
|
* will continue.
|
|
*
|
|
* If you specify a fake directory that only exists as a mount point, it'll
|
|
* be associated with the first archive mounted there, even though that
|
|
* directory isn't necessarily contained in a real archive.
|
|
*
|
|
* \warning This will return NULL if there is no real directory associated
|
|
* with (filename). Specifically, PHYSFS_mountIo(),
|
|
* PHYSFS_mountMemory(), and PHYSFS_mountHandle() will return NULL
|
|
* even if the filename is found in the search path. Plan accordingly.
|
|
*
|
|
* \param filename file to look for.
|
|
* \return READ ONLY string of element of search path containing the
|
|
* the file in question. NULL if not found.
|
|
*/
|
|
PHYSFS_DECL const char *PHYSFS_getRealDir(const char *filename);
|
|
|
|
|
|
/**
|
|
* \fn char **PHYSFS_enumerateFiles(const char *dir)
|
|
* \brief Get a file listing of a search path's directory.
|
|
*
|
|
* \warning In PhysicsFS versions prior to 2.1, this function would return
|
|
* as many items as it could in the face of a failure condition
|
|
* (out of memory, disk i/o error, etc). Since this meant apps
|
|
* couldn't distinguish between complete success and partial failure,
|
|
* and since the function could always return NULL to report
|
|
* catastrophic failures anyway, in PhysicsFS 2.1 this function's
|
|
* policy changed: it will either return a list of complete results
|
|
* or it will return NULL for any failure of any kind, so we can
|
|
* guarantee that the enumeration ran to completion and has no gaps
|
|
* in its results.
|
|
*
|
|
* Matching directories are interpolated. That is, if "C:\mydir" is in the
|
|
* search path and contains a directory "savegames" that contains "x.sav",
|
|
* "y.sav", and "z.sav", and there is also a "C:\userdir" in the search path
|
|
* that has a "savegames" subdirectory with "w.sav", then the following code:
|
|
*
|
|
* \code
|
|
* char **rc = PHYSFS_enumerateFiles("savegames");
|
|
* char **i;
|
|
*
|
|
* for (i = rc; *i != NULL; i++)
|
|
* printf(" * We've got [%s].\n", *i);
|
|
*
|
|
* PHYSFS_freeList(rc);
|
|
* \endcode
|
|
*
|
|
* \...will print:
|
|
*
|
|
* \verbatim
|
|
* We've got [x.sav].
|
|
* We've got [y.sav].
|
|
* We've got [z.sav].
|
|
* We've got [w.sav].\endverbatim
|
|
*
|
|
* Feel free to sort the list however you like. However, the returned data
|
|
* will always contain no duplicates, and will be always sorted in alphabetic
|
|
* (rather: case-sensitive Unicode) order for you.
|
|
*
|
|
* Don't forget to call PHYSFS_freeList() with the return value from this
|
|
* function when you are done with it.
|
|
*
|
|
* \param dir directory in platform-independent notation to enumerate.
|
|
* \return Null-terminated array of null-terminated strings, or NULL for
|
|
* failure cases.
|
|
*
|
|
* \sa PHYSFS_enumerate
|
|
*/
|
|
PHYSFS_DECL char **PHYSFS_enumerateFiles(const char *dir);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_exists(const char *fname)
|
|
* \brief Determine if a file exists in the search path.
|
|
*
|
|
* Reports true if there is an entry anywhere in the search path by the
|
|
* name of (fname).
|
|
*
|
|
* Note that entries that are symlinks are ignored if
|
|
* PHYSFS_permitSymbolicLinks(1) hasn't been called, so you
|
|
* might end up further down in the search path than expected.
|
|
*
|
|
* \param fname filename in platform-independent notation.
|
|
* \return non-zero if filename exists. zero otherwise.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_exists(const char *fname);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_isDirectory(const char *fname)
|
|
* \brief Determine if a file in the search path is really a directory.
|
|
*
|
|
* \deprecated As of PhysicsFS 2.1, use PHYSFS_stat() instead. This
|
|
* function just wraps it anyhow.
|
|
*
|
|
* Determine if the first occurence of (fname) in the search path is
|
|
* really a directory entry.
|
|
*
|
|
* Note that entries that are symlinks are ignored if
|
|
* PHYSFS_permitSymbolicLinks(1) hasn't been called, so you
|
|
* might end up further down in the search path than expected.
|
|
*
|
|
* \param fname filename in platform-independent notation.
|
|
* \return non-zero if filename exists and is a directory. zero otherwise.
|
|
*
|
|
* \sa PHYSFS_stat
|
|
* \sa PHYSFS_exists
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_isDirectory(const char *fname) PHYSFS_DEPRECATED;
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_isSymbolicLink(const char *fname)
|
|
* \brief Determine if a file in the search path is really a symbolic link.
|
|
*
|
|
* \deprecated As of PhysicsFS 2.1, use PHYSFS_stat() instead. This
|
|
* function just wraps it anyhow.
|
|
*
|
|
* Determine if the first occurence of (fname) in the search path is
|
|
* really a symbolic link.
|
|
*
|
|
* Note that entries that are symlinks are ignored if
|
|
* PHYSFS_permitSymbolicLinks(1) hasn't been called, and as such,
|
|
* this function will always return 0 in that case.
|
|
*
|
|
* \param fname filename in platform-independent notation.
|
|
* \return non-zero if filename exists and is a symlink. zero otherwise.
|
|
*
|
|
* \sa PHYSFS_stat
|
|
* \sa PHYSFS_exists
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_isSymbolicLink(const char *fname) PHYSFS_DEPRECATED;
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_sint64 PHYSFS_getLastModTime(const char *filename)
|
|
* \brief Get the last modification time of a file.
|
|
*
|
|
* \deprecated As of PhysicsFS 2.1, use PHYSFS_stat() instead. This
|
|
* function just wraps it anyhow.
|
|
*
|
|
* The modtime is returned as a number of seconds since the Unix epoch
|
|
* (midnight, Jan 1, 1970). The exact derivation and accuracy of this time
|
|
* depends on the particular archiver. If there is no reasonable way to
|
|
* obtain this information for a particular archiver, or there was some sort
|
|
* of error, this function returns (-1).
|
|
*
|
|
* You must use this and not PHYSFS_stat() if binary compatibility with
|
|
* PhysicsFS 2.0 is important (which it may not be for many people).
|
|
*
|
|
* \param filename filename to check, in platform-independent notation.
|
|
* \return last modified time of the file. -1 if it can't be determined.
|
|
*
|
|
* \sa PHYSFS_stat
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint64 PHYSFS_getLastModTime(const char *filename)
|
|
PHYSFS_DEPRECATED;
|
|
|
|
|
|
/* i/o stuff... */
|
|
|
|
/**
|
|
* \fn PHYSFS_File *PHYSFS_openWrite(const char *filename)
|
|
* \brief Open a file for writing.
|
|
*
|
|
* Open a file for writing, in platform-independent notation and in relation
|
|
* to the write dir as the root of the writable filesystem. The specified
|
|
* file is created if it doesn't exist. If it does exist, it is truncated to
|
|
* zero bytes, and the writing offset is set to the start.
|
|
*
|
|
* Note that entries that are symlinks are ignored if
|
|
* PHYSFS_permitSymbolicLinks(1) hasn't been called, and opening a
|
|
* symlink with this function will fail in such a case.
|
|
*
|
|
* \param filename File to open.
|
|
* \return A valid PhysicsFS filehandle on success, NULL on error. Use
|
|
* PHYSFS_getLastErrorCode() to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_openRead
|
|
* \sa PHYSFS_openAppend
|
|
* \sa PHYSFS_write
|
|
* \sa PHYSFS_close
|
|
*/
|
|
PHYSFS_DECL PHYSFS_File *PHYSFS_openWrite(const char *filename);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_File *PHYSFS_openAppend(const char *filename)
|
|
* \brief Open a file for appending.
|
|
*
|
|
* Open a file for writing, in platform-independent notation and in relation
|
|
* to the write dir as the root of the writable filesystem. The specified
|
|
* file is created if it doesn't exist. If it does exist, the writing offset
|
|
* is set to the end of the file, so the first write will be the byte after
|
|
* the end.
|
|
*
|
|
* Note that entries that are symlinks are ignored if
|
|
* PHYSFS_permitSymbolicLinks(1) hasn't been called, and opening a
|
|
* symlink with this function will fail in such a case.
|
|
*
|
|
* \param filename File to open.
|
|
* \return A valid PhysicsFS filehandle on success, NULL on error. Use
|
|
* PHYSFS_getLastErrorCode() to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_openRead
|
|
* \sa PHYSFS_openWrite
|
|
* \sa PHYSFS_write
|
|
* \sa PHYSFS_close
|
|
*/
|
|
PHYSFS_DECL PHYSFS_File *PHYSFS_openAppend(const char *filename);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_File *PHYSFS_openRead(const char *filename)
|
|
* \brief Open a file for reading.
|
|
*
|
|
* Open a file for reading, in platform-independent notation. The search path
|
|
* is checked one at a time until a matching file is found, in which case an
|
|
* abstract filehandle is associated with it, and reading may be done.
|
|
* The reading offset is set to the first byte of the file.
|
|
*
|
|
* Note that entries that are symlinks are ignored if
|
|
* PHYSFS_permitSymbolicLinks(1) hasn't been called, and opening a
|
|
* symlink with this function will fail in such a case.
|
|
*
|
|
* \param filename File to open.
|
|
* \return A valid PhysicsFS filehandle on success, NULL on error.
|
|
* Use PHYSFS_getLastErrorCode() to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_openWrite
|
|
* \sa PHYSFS_openAppend
|
|
* \sa PHYSFS_read
|
|
* \sa PHYSFS_close
|
|
*/
|
|
PHYSFS_DECL PHYSFS_File *PHYSFS_openRead(const char *filename);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_close(PHYSFS_File *handle)
|
|
* \brief Close a PhysicsFS filehandle.
|
|
*
|
|
* This call is capable of failing if the operating system was buffering
|
|
* writes to the physical media, and, now forced to write those changes to
|
|
* physical media, can not store the data for some reason. In such a case,
|
|
* the filehandle stays open. A well-written program should ALWAYS check the
|
|
* return value from the close call in addition to every writing call!
|
|
*
|
|
* \param handle handle returned from PHYSFS_open*().
|
|
* \return nonzero on success, zero on error. Use PHYSFS_getLastErrorCode()
|
|
* to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_openRead
|
|
* \sa PHYSFS_openWrite
|
|
* \sa PHYSFS_openAppend
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_close(PHYSFS_File *handle);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_sint64 PHYSFS_read(PHYSFS_File *handle, void *buffer, PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
|
|
* \brief Read data from a PhysicsFS filehandle
|
|
*
|
|
* The file must be opened for reading.
|
|
*
|
|
* \deprecated As of PhysicsFS 2.1, use PHYSFS_readBytes() instead. This
|
|
* function just wraps it anyhow. This function never clarified
|
|
* what would happen if you managed to read a partial object, so
|
|
* working at the byte level makes this cleaner for everyone,
|
|
* especially now that PHYSFS_Io interfaces can be supplied by the
|
|
* application.
|
|
*
|
|
* \param handle handle returned from PHYSFS_openRead().
|
|
* \param buffer buffer to store read data into.
|
|
* \param objSize size in bytes of objects being read from (handle).
|
|
* \param objCount number of (objSize) objects to read from (handle).
|
|
* \return number of objects read. PHYSFS_getLastErrorCode() can shed light
|
|
* on the reason this might be < (objCount), as can PHYSFS_eof().
|
|
* -1 if complete failure.
|
|
*
|
|
* \sa PHYSFS_readBytes
|
|
* \sa PHYSFS_eof
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint64 PHYSFS_read(PHYSFS_File *handle,
|
|
void *buffer,
|
|
PHYSFS_uint32 objSize,
|
|
PHYSFS_uint32 objCount)
|
|
PHYSFS_DEPRECATED;
|
|
|
|
/**
|
|
* \fn PHYSFS_sint64 PHYSFS_write(PHYSFS_File *handle, const void *buffer, PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
|
|
* \brief Write data to a PhysicsFS filehandle
|
|
*
|
|
* The file must be opened for writing.
|
|
*
|
|
* \deprecated As of PhysicsFS 2.1, use PHYSFS_writeBytes() instead. This
|
|
* function just wraps it anyhow. This function never clarified
|
|
* what would happen if you managed to write a partial object, so
|
|
* working at the byte level makes this cleaner for everyone,
|
|
* especially now that PHYSFS_Io interfaces can be supplied by the
|
|
* application.
|
|
*
|
|
* \param handle retval from PHYSFS_openWrite() or PHYSFS_openAppend().
|
|
* \param buffer buffer of bytes to write to (handle).
|
|
* \param objSize size in bytes of objects being written to (handle).
|
|
* \param objCount number of (objSize) objects to write to (handle).
|
|
* \return number of objects written. PHYSFS_getLastErrorCode() can shed
|
|
* light on the reason this might be < (objCount). -1 if complete
|
|
* failure.
|
|
*
|
|
* \sa PHYSFS_writeBytes
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint64 PHYSFS_write(PHYSFS_File *handle,
|
|
const void *buffer,
|
|
PHYSFS_uint32 objSize,
|
|
PHYSFS_uint32 objCount)
|
|
PHYSFS_DEPRECATED;
|
|
|
|
|
|
/* File position stuff... */
|
|
|
|
/**
|
|
* \fn int PHYSFS_eof(PHYSFS_File *handle)
|
|
* \brief Check for end-of-file state on a PhysicsFS filehandle.
|
|
*
|
|
* Determine if the end of file has been reached in a PhysicsFS filehandle.
|
|
*
|
|
* \param handle handle returned from PHYSFS_openRead().
|
|
* \return nonzero if EOF, zero if not.
|
|
*
|
|
* \sa PHYSFS_read
|
|
* \sa PHYSFS_tell
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_eof(PHYSFS_File *handle);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_sint64 PHYSFS_tell(PHYSFS_File *handle)
|
|
* \brief Determine current position within a PhysicsFS filehandle.
|
|
*
|
|
* \param handle handle returned from PHYSFS_open*().
|
|
* \return offset in bytes from start of file. -1 if error occurred.
|
|
* Use PHYSFS_getLastErrorCode() to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_seek
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint64 PHYSFS_tell(PHYSFS_File *handle);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_seek(PHYSFS_File *handle, PHYSFS_uint64 pos)
|
|
* \brief Seek to a new position within a PhysicsFS filehandle.
|
|
*
|
|
* The next read or write will occur at that place. Seeking past the
|
|
* beginning or end of the file is not allowed, and causes an error.
|
|
*
|
|
* \param handle handle returned from PHYSFS_open*().
|
|
* \param pos number of bytes from start of file to seek to.
|
|
* \return nonzero on success, zero on error. Use PHYSFS_getLastErrorCode()
|
|
* to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_tell
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_seek(PHYSFS_File *handle, PHYSFS_uint64 pos);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_sint64 PHYSFS_fileLength(PHYSFS_File *handle)
|
|
* \brief Get total length of a file in bytes.
|
|
*
|
|
* Note that if another process/thread is writing to this file at the same
|
|
* time, then the information this function supplies could be incorrect
|
|
* before you get it. Use with caution, or better yet, don't use at all.
|
|
*
|
|
* \param handle handle returned from PHYSFS_open*().
|
|
* \return size in bytes of the file. -1 if can't be determined.
|
|
*
|
|
* \sa PHYSFS_tell
|
|
* \sa PHYSFS_seek
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint64 PHYSFS_fileLength(PHYSFS_File *handle);
|
|
|
|
|
|
/* Buffering stuff... */
|
|
|
|
/**
|
|
* \fn int PHYSFS_setBuffer(PHYSFS_File *handle, PHYSFS_uint64 bufsize)
|
|
* \brief Set up buffering for a PhysicsFS file handle.
|
|
*
|
|
* Define an i/o buffer for a file handle. A memory block of (bufsize) bytes
|
|
* will be allocated and associated with (handle).
|
|
*
|
|
* For files opened for reading, up to (bufsize) bytes are read from (handle)
|
|
* and stored in the internal buffer. Calls to PHYSFS_read() will pull
|
|
* from this buffer until it is empty, and then refill it for more reading.
|
|
* Note that compressed files, like ZIP archives, will decompress while
|
|
* buffering, so this can be handy for offsetting CPU-intensive operations.
|
|
* The buffer isn't filled until you do your next read.
|
|
*
|
|
* For files opened for writing, data will be buffered to memory until the
|
|
* buffer is full or the buffer is flushed. Closing a handle implicitly
|
|
* causes a flush...check your return values!
|
|
*
|
|
* Seeking, etc transparently accounts for buffering.
|
|
*
|
|
* You can resize an existing buffer by calling this function more than once
|
|
* on the same file. Setting the buffer size to zero will free an existing
|
|
* buffer.
|
|
*
|
|
* PhysicsFS file handles are unbuffered by default.
|
|
*
|
|
* Please check the return value of this function! Failures can include
|
|
* not being able to seek backwards in a read-only file when removing the
|
|
* buffer, not being able to allocate the buffer, and not being able to
|
|
* flush the buffer to disk, among other unexpected problems.
|
|
*
|
|
* \param handle handle returned from PHYSFS_open*().
|
|
* \param bufsize size, in bytes, of buffer to allocate.
|
|
* \return nonzero if successful, zero on error.
|
|
*
|
|
* \sa PHYSFS_flush
|
|
* \sa PHYSFS_read
|
|
* \sa PHYSFS_write
|
|
* \sa PHYSFS_close
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_setBuffer(PHYSFS_File *handle, PHYSFS_uint64 bufsize);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_flush(PHYSFS_File *handle)
|
|
* \brief Flush a buffered PhysicsFS file handle.
|
|
*
|
|
* For buffered files opened for writing, this will put the current contents
|
|
* of the buffer to disk and flag the buffer as empty if possible.
|
|
*
|
|
* For buffered files opened for reading or unbuffered files, this is a safe
|
|
* no-op, and will report success.
|
|
*
|
|
* \param handle handle returned from PHYSFS_open*().
|
|
* \return nonzero if successful, zero on error.
|
|
*
|
|
* \sa PHYSFS_setBuffer
|
|
* \sa PHYSFS_close
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_flush(PHYSFS_File *handle);
|
|
|
|
|
|
/* Byteorder stuff... */
|
|
|
|
/**
|
|
* \fn PHYSFS_sint16 PHYSFS_swapSLE16(PHYSFS_sint16 val)
|
|
* \brief Swap littleendian signed 16 to platform's native byte order.
|
|
*
|
|
* Take a 16-bit signed value in littleendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint16 PHYSFS_swapSLE16(PHYSFS_sint16 val);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_uint16 PHYSFS_swapULE16(PHYSFS_uint16 val)
|
|
* \brief Swap littleendian unsigned 16 to platform's native byte order.
|
|
*
|
|
* Take a 16-bit unsigned value in littleendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_uint16 PHYSFS_swapULE16(PHYSFS_uint16 val);
|
|
|
|
/**
|
|
* \fn PHYSFS_sint32 PHYSFS_swapSLE32(PHYSFS_sint32 val)
|
|
* \brief Swap littleendian signed 32 to platform's native byte order.
|
|
*
|
|
* Take a 32-bit signed value in littleendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint32 PHYSFS_swapSLE32(PHYSFS_sint32 val);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_uint32 PHYSFS_swapULE32(PHYSFS_uint32 val)
|
|
* \brief Swap littleendian unsigned 32 to platform's native byte order.
|
|
*
|
|
* Take a 32-bit unsigned value in littleendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_uint32 PHYSFS_swapULE32(PHYSFS_uint32 val);
|
|
|
|
/**
|
|
* \fn PHYSFS_sint64 PHYSFS_swapSLE64(PHYSFS_sint64 val)
|
|
* \brief Swap littleendian signed 64 to platform's native byte order.
|
|
*
|
|
* Take a 64-bit signed value in littleendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*
|
|
* \warning Remember, PHYSFS_sint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint64 PHYSFS_swapSLE64(PHYSFS_sint64 val);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_uint64 PHYSFS_swapULE64(PHYSFS_uint64 val)
|
|
* \brief Swap littleendian unsigned 64 to platform's native byte order.
|
|
*
|
|
* Take a 64-bit unsigned value in littleendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*
|
|
* \warning Remember, PHYSFS_uint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_uint64 PHYSFS_swapULE64(PHYSFS_uint64 val);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_sint16 PHYSFS_swapSBE16(PHYSFS_sint16 val)
|
|
* \brief Swap bigendian signed 16 to platform's native byte order.
|
|
*
|
|
* Take a 16-bit signed value in bigendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint16 PHYSFS_swapSBE16(PHYSFS_sint16 val);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_uint16 PHYSFS_swapUBE16(PHYSFS_uint16 val)
|
|
* \brief Swap bigendian unsigned 16 to platform's native byte order.
|
|
*
|
|
* Take a 16-bit unsigned value in bigendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_uint16 PHYSFS_swapUBE16(PHYSFS_uint16 val);
|
|
|
|
/**
|
|
* \fn PHYSFS_sint32 PHYSFS_swapSBE32(PHYSFS_sint32 val)
|
|
* \brief Swap bigendian signed 32 to platform's native byte order.
|
|
*
|
|
* Take a 32-bit signed value in bigendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint32 PHYSFS_swapSBE32(PHYSFS_sint32 val);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_uint32 PHYSFS_swapUBE32(PHYSFS_uint32 val)
|
|
* \brief Swap bigendian unsigned 32 to platform's native byte order.
|
|
*
|
|
* Take a 32-bit unsigned value in bigendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_uint32 PHYSFS_swapUBE32(PHYSFS_uint32 val);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_sint64 PHYSFS_swapSBE64(PHYSFS_sint64 val)
|
|
* \brief Swap bigendian signed 64 to platform's native byte order.
|
|
*
|
|
* Take a 64-bit signed value in bigendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*
|
|
* \warning Remember, PHYSFS_sint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint64 PHYSFS_swapSBE64(PHYSFS_sint64 val);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_uint64 PHYSFS_swapUBE64(PHYSFS_uint64 val)
|
|
* \brief Swap bigendian unsigned 64 to platform's native byte order.
|
|
*
|
|
* Take a 64-bit unsigned value in bigendian format and convert it to
|
|
* the platform's native byte order.
|
|
*
|
|
* \param val value to convert
|
|
* \return converted value.
|
|
*
|
|
* \warning Remember, PHYSFS_uint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_uint64 PHYSFS_swapUBE64(PHYSFS_uint64 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readSLE16(PHYSFS_File *file, PHYSFS_sint16 *val)
|
|
* \brief Read and convert a signed 16-bit littleendian value.
|
|
*
|
|
* Convenience function. Read a signed 16-bit littleendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readSLE16(PHYSFS_File *file, PHYSFS_sint16 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readULE16(PHYSFS_File *file, PHYSFS_uint16 *val)
|
|
* \brief Read and convert an unsigned 16-bit littleendian value.
|
|
*
|
|
* Convenience function. Read an unsigned 16-bit littleendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readULE16(PHYSFS_File *file, PHYSFS_uint16 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readSBE16(PHYSFS_File *file, PHYSFS_sint16 *val)
|
|
* \brief Read and convert a signed 16-bit bigendian value.
|
|
*
|
|
* Convenience function. Read a signed 16-bit bigendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readSBE16(PHYSFS_File *file, PHYSFS_sint16 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readUBE16(PHYSFS_File *file, PHYSFS_uint16 *val)
|
|
* \brief Read and convert an unsigned 16-bit bigendian value.
|
|
*
|
|
* Convenience function. Read an unsigned 16-bit bigendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readUBE16(PHYSFS_File *file, PHYSFS_uint16 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readSLE32(PHYSFS_File *file, PHYSFS_sint32 *val)
|
|
* \brief Read and convert a signed 32-bit littleendian value.
|
|
*
|
|
* Convenience function. Read a signed 32-bit littleendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readSLE32(PHYSFS_File *file, PHYSFS_sint32 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readULE32(PHYSFS_File *file, PHYSFS_uint32 *val)
|
|
* \brief Read and convert an unsigned 32-bit littleendian value.
|
|
*
|
|
* Convenience function. Read an unsigned 32-bit littleendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readULE32(PHYSFS_File *file, PHYSFS_uint32 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readSBE32(PHYSFS_File *file, PHYSFS_sint32 *val)
|
|
* \brief Read and convert a signed 32-bit bigendian value.
|
|
*
|
|
* Convenience function. Read a signed 32-bit bigendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readSBE32(PHYSFS_File *file, PHYSFS_sint32 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readUBE32(PHYSFS_File *file, PHYSFS_uint32 *val)
|
|
* \brief Read and convert an unsigned 32-bit bigendian value.
|
|
*
|
|
* Convenience function. Read an unsigned 32-bit bigendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readUBE32(PHYSFS_File *file, PHYSFS_uint32 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readSLE64(PHYSFS_File *file, PHYSFS_sint64 *val)
|
|
* \brief Read and convert a signed 64-bit littleendian value.
|
|
*
|
|
* Convenience function. Read a signed 64-bit littleendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*
|
|
* \warning Remember, PHYSFS_sint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readSLE64(PHYSFS_File *file, PHYSFS_sint64 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readULE64(PHYSFS_File *file, PHYSFS_uint64 *val)
|
|
* \brief Read and convert an unsigned 64-bit littleendian value.
|
|
*
|
|
* Convenience function. Read an unsigned 64-bit littleendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*
|
|
* \warning Remember, PHYSFS_uint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readULE64(PHYSFS_File *file, PHYSFS_uint64 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readSBE64(PHYSFS_File *file, PHYSFS_sint64 *val)
|
|
* \brief Read and convert a signed 64-bit bigendian value.
|
|
*
|
|
* Convenience function. Read a signed 64-bit bigendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*
|
|
* \warning Remember, PHYSFS_sint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readSBE64(PHYSFS_File *file, PHYSFS_sint64 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_readUBE64(PHYSFS_File *file, PHYSFS_uint64 *val)
|
|
* \brief Read and convert an unsigned 64-bit bigendian value.
|
|
*
|
|
* Convenience function. Read an unsigned 64-bit bigendian value from a
|
|
* file and convert it to the platform's native byte order.
|
|
*
|
|
* \param file PhysicsFS file handle from which to read.
|
|
* \param val pointer to where value should be stored.
|
|
* \return zero on failure, non-zero on success. If successful, (*val) will
|
|
* store the result. On failure, you can find out what went wrong
|
|
* from PHYSFS_getLastErrorCode().
|
|
*
|
|
* \warning Remember, PHYSFS_uint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_readUBE64(PHYSFS_File *file, PHYSFS_uint64 *val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeSLE16(PHYSFS_File *file, PHYSFS_sint16 val)
|
|
* \brief Convert and write a signed 16-bit littleendian value.
|
|
*
|
|
* Convenience function. Convert a signed 16-bit value from the platform's
|
|
* native byte order to littleendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeSLE16(PHYSFS_File *file, PHYSFS_sint16 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeULE16(PHYSFS_File *file, PHYSFS_uint16 val)
|
|
* \brief Convert and write an unsigned 16-bit littleendian value.
|
|
*
|
|
* Convenience function. Convert an unsigned 16-bit value from the platform's
|
|
* native byte order to littleendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeULE16(PHYSFS_File *file, PHYSFS_uint16 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeSBE16(PHYSFS_File *file, PHYSFS_sint16 val)
|
|
* \brief Convert and write a signed 16-bit bigendian value.
|
|
*
|
|
* Convenience function. Convert a signed 16-bit value from the platform's
|
|
* native byte order to bigendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeSBE16(PHYSFS_File *file, PHYSFS_sint16 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeUBE16(PHYSFS_File *file, PHYSFS_uint16 val)
|
|
* \brief Convert and write an unsigned 16-bit bigendian value.
|
|
*
|
|
* Convenience function. Convert an unsigned 16-bit value from the platform's
|
|
* native byte order to bigendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeUBE16(PHYSFS_File *file, PHYSFS_uint16 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeSLE32(PHYSFS_File *file, PHYSFS_sint32 val)
|
|
* \brief Convert and write a signed 32-bit littleendian value.
|
|
*
|
|
* Convenience function. Convert a signed 32-bit value from the platform's
|
|
* native byte order to littleendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeSLE32(PHYSFS_File *file, PHYSFS_sint32 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeULE32(PHYSFS_File *file, PHYSFS_uint32 val)
|
|
* \brief Convert and write an unsigned 32-bit littleendian value.
|
|
*
|
|
* Convenience function. Convert an unsigned 32-bit value from the platform's
|
|
* native byte order to littleendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeULE32(PHYSFS_File *file, PHYSFS_uint32 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeSBE32(PHYSFS_File *file, PHYSFS_sint32 val)
|
|
* \brief Convert and write a signed 32-bit bigendian value.
|
|
*
|
|
* Convenience function. Convert a signed 32-bit value from the platform's
|
|
* native byte order to bigendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeSBE32(PHYSFS_File *file, PHYSFS_sint32 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeUBE32(PHYSFS_File *file, PHYSFS_uint32 val)
|
|
* \brief Convert and write an unsigned 32-bit bigendian value.
|
|
*
|
|
* Convenience function. Convert an unsigned 32-bit value from the platform's
|
|
* native byte order to bigendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeUBE32(PHYSFS_File *file, PHYSFS_uint32 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeSLE64(PHYSFS_File *file, PHYSFS_sint64 val)
|
|
* \brief Convert and write a signed 64-bit littleendian value.
|
|
*
|
|
* Convenience function. Convert a signed 64-bit value from the platform's
|
|
* native byte order to littleendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*
|
|
* \warning Remember, PHYSFS_sint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeSLE64(PHYSFS_File *file, PHYSFS_sint64 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeULE64(PHYSFS_File *file, PHYSFS_uint64 val)
|
|
* \brief Convert and write an unsigned 64-bit littleendian value.
|
|
*
|
|
* Convenience function. Convert an unsigned 64-bit value from the platform's
|
|
* native byte order to littleendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*
|
|
* \warning Remember, PHYSFS_uint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeULE64(PHYSFS_File *file, PHYSFS_uint64 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeSBE64(PHYSFS_File *file, PHYSFS_sint64 val)
|
|
* \brief Convert and write a signed 64-bit bigending value.
|
|
*
|
|
* Convenience function. Convert a signed 64-bit value from the platform's
|
|
* native byte order to bigendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*
|
|
* \warning Remember, PHYSFS_sint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeSBE64(PHYSFS_File *file, PHYSFS_sint64 val);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_writeUBE64(PHYSFS_File *file, PHYSFS_uint64 val)
|
|
* \brief Convert and write an unsigned 64-bit bigendian value.
|
|
*
|
|
* Convenience function. Convert an unsigned 64-bit value from the platform's
|
|
* native byte order to bigendian and write it to a file.
|
|
*
|
|
* \param file PhysicsFS file handle to which to write.
|
|
* \param val Value to convert and write.
|
|
* \return zero on failure, non-zero on success. On failure, you can
|
|
* find out what went wrong from PHYSFS_getLastErrorCode().
|
|
*
|
|
* \warning Remember, PHYSFS_uint64 is only 32 bits on platforms without
|
|
* any sort of 64-bit support.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_writeUBE64(PHYSFS_File *file, PHYSFS_uint64 val);
|
|
|
|
|
|
/* Everything above this line is part of the PhysicsFS 1.0 API. */
|
|
|
|
/**
|
|
* \fn int PHYSFS_isInit(void)
|
|
* \brief Determine if the PhysicsFS library is initialized.
|
|
*
|
|
* Once PHYSFS_init() returns successfully, this will return non-zero.
|
|
* Before a successful PHYSFS_init() and after PHYSFS_deinit() returns
|
|
* successfully, this will return zero. This function is safe to call at
|
|
* any time.
|
|
*
|
|
* \return non-zero if library is initialized, zero if library is not.
|
|
*
|
|
* \sa PHYSFS_init
|
|
* \sa PHYSFS_deinit
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_isInit(void);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_symbolicLinksPermitted(void)
|
|
* \brief Determine if the symbolic links are permitted.
|
|
*
|
|
* This reports the setting from the last call to PHYSFS_permitSymbolicLinks().
|
|
* If PHYSFS_permitSymbolicLinks() hasn't been called since the library was
|
|
* last initialized, symbolic links are implicitly disabled.
|
|
*
|
|
* \return non-zero if symlinks are permitted, zero if not.
|
|
*
|
|
* \sa PHYSFS_permitSymbolicLinks
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_symbolicLinksPermitted(void);
|
|
|
|
|
|
/**
|
|
* \struct PHYSFS_Allocator
|
|
* \brief PhysicsFS allocation function pointers.
|
|
*
|
|
* (This is for limited, hardcore use. If you don't immediately see a need
|
|
* for it, you can probably ignore this forever.)
|
|
*
|
|
* You create one of these structures for use with PHYSFS_setAllocator.
|
|
* Allocators are assumed to be reentrant by the caller; please mutex
|
|
* accordingly.
|
|
*
|
|
* Allocations are always discussed in 64-bits, for future expansion...we're
|
|
* on the cusp of a 64-bit transition, and we'll probably be allocating 6
|
|
* gigabytes like it's nothing sooner or later, and I don't want to change
|
|
* this again at that point. If you're on a 32-bit platform and have to
|
|
* downcast, it's okay to return NULL if the allocation is greater than
|
|
* 4 gigabytes, since you'd have to do so anyhow.
|
|
*
|
|
* \sa PHYSFS_setAllocator
|
|
*/
|
|
typedef struct PHYSFS_Allocator
|
|
{
|
|
int (*Init)(void); /**< Initialize. Can be NULL. Zero on failure. */
|
|
void (*Deinit)(void); /**< Deinitialize your allocator. Can be NULL. */
|
|
void *(*Malloc)(PHYSFS_uint64); /**< Allocate like malloc(). */
|
|
void *(*Realloc)(void *, PHYSFS_uint64); /**< Reallocate like realloc(). */
|
|
void (*Free)(void *); /**< Free memory from Malloc or Realloc. */
|
|
} PHYSFS_Allocator;
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_setAllocator(const PHYSFS_Allocator *allocator)
|
|
* \brief Hook your own allocation routines into PhysicsFS.
|
|
*
|
|
* (This is for limited, hardcore use. If you don't immediately see a need
|
|
* for it, you can probably ignore this forever.)
|
|
*
|
|
* By default, PhysicsFS will use whatever is reasonable for a platform
|
|
* to manage dynamic memory (usually ANSI C malloc/realloc/free, but
|
|
* some platforms might use something else), but in some uncommon cases, the
|
|
* app might want more control over the library's memory management. This
|
|
* lets you redirect PhysicsFS to use your own allocation routines instead.
|
|
* You can only call this function before PHYSFS_init(); if the library is
|
|
* initialized, it'll reject your efforts to change the allocator mid-stream.
|
|
* You may call this function after PHYSFS_deinit() if you are willing to
|
|
* shut down the library and restart it with a new allocator; this is a safe
|
|
* and supported operation. The allocator remains intact between deinit/init
|
|
* calls. If you want to return to the platform's default allocator, pass a
|
|
* NULL in here.
|
|
*
|
|
* If you aren't immediately sure what to do with this function, you can
|
|
* safely ignore it altogether.
|
|
*
|
|
* \param allocator Structure containing your allocator's entry points.
|
|
* \return zero on failure, non-zero on success. This call only fails
|
|
* when used between PHYSFS_init() and PHYSFS_deinit() calls.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_setAllocator(const PHYSFS_Allocator *allocator);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_mount(const char *newDir, const char *mountPoint, int appendToPath)
|
|
* \brief Add an archive or directory to the search path.
|
|
*
|
|
* If this is a duplicate, the entry is not added again, even though the
|
|
* function succeeds. You may not add the same archive to two different
|
|
* mountpoints: duplicate checking is done against the archive and not the
|
|
* mountpoint.
|
|
*
|
|
* When you mount an archive, it is added to a virtual file system...all files
|
|
* in all of the archives are interpolated into a single hierachical file
|
|
* tree. Two archives mounted at the same place (or an archive with files
|
|
* overlapping another mountpoint) may have overlapping files: in such a case,
|
|
* the file earliest in the search path is selected, and the other files are
|
|
* inaccessible to the application. This allows archives to be used to
|
|
* override previous revisions; you can use the mounting mechanism to place
|
|
* archives at a specific point in the file tree and prevent overlap; this
|
|
* is useful for downloadable mods that might trample over application data
|
|
* or each other, for example.
|
|
*
|
|
* The mountpoint does not need to exist prior to mounting, which is different
|
|
* than those familiar with the Unix concept of "mounting" may expect.
|
|
* As well, more than one archive can be mounted to the same mountpoint, or
|
|
* mountpoints and archive contents can overlap...the interpolation mechanism
|
|
* still functions as usual.
|
|
*
|
|
* Specifying a symbolic link to an archive or directory is allowed here,
|
|
* regardless of the state of PHYSFS_permitSymbolicLinks(). That function
|
|
* only deals with symlinks inside the mounted directory or archive.
|
|
*
|
|
* \param newDir directory or archive to add to the path, in
|
|
* platform-dependent notation.
|
|
* \param mountPoint Location in the interpolated tree that this archive
|
|
* will be "mounted", in platform-independent notation.
|
|
* NULL or "" is equivalent to "/".
|
|
* \param appendToPath nonzero to append to search path, zero to prepend.
|
|
* \return nonzero if added to path, zero on failure (bogus archive, dir
|
|
* missing, etc). Use PHYSFS_getLastErrorCode() to obtain
|
|
* the specific error.
|
|
*
|
|
* \sa PHYSFS_removeFromSearchPath
|
|
* \sa PHYSFS_getSearchPath
|
|
* \sa PHYSFS_getMountPoint
|
|
* \sa PHYSFS_mountIo
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_mount(const char *newDir,
|
|
const char *mountPoint,
|
|
int appendToPath);
|
|
|
|
/**
|
|
* \fn int PHYSFS_getMountPoint(const char *dir)
|
|
* \brief Determine a mounted archive's mountpoint.
|
|
*
|
|
* You give this function the name of an archive or dir you successfully
|
|
* added to the search path, and it reports the location in the interpolated
|
|
* tree where it is mounted. Files mounted with a NULL mountpoint or through
|
|
* PHYSFS_addToSearchPath() will report "/". The return value is READ ONLY
|
|
* and valid until the archive is removed from the search path.
|
|
*
|
|
* \param dir directory or archive previously added to the path, in
|
|
* platform-dependent notation. This must match the string
|
|
* used when adding, even if your string would also reference
|
|
* the same file with a different string of characters.
|
|
* \return READ-ONLY string of mount point if added to path, NULL on failure
|
|
* (bogus archive, etc). Use PHYSFS_getLastErrorCode() to obtain the
|
|
* specific error.
|
|
*
|
|
* \sa PHYSFS_removeFromSearchPath
|
|
* \sa PHYSFS_getSearchPath
|
|
* \sa PHYSFS_getMountPoint
|
|
*/
|
|
PHYSFS_DECL const char *PHYSFS_getMountPoint(const char *dir);
|
|
|
|
|
|
/**
|
|
* \typedef PHYSFS_StringCallback
|
|
* \brief Function signature for callbacks that report strings.
|
|
*
|
|
* These are used to report a list of strings to an original caller, one
|
|
* string per callback. All strings are UTF-8 encoded. Functions should not
|
|
* try to modify or free the string's memory.
|
|
*
|
|
* These callbacks are used, starting in PhysicsFS 1.1, as an alternative to
|
|
* functions that would return lists that need to be cleaned up with
|
|
* PHYSFS_freeList(). The callback means that the library doesn't need to
|
|
* allocate an entire list and all the strings up front.
|
|
*
|
|
* Be aware that promises data ordering in the list versions are not
|
|
* necessarily so in the callback versions. Check the documentation on
|
|
* specific APIs, but strings may not be sorted as you expect.
|
|
*
|
|
* \param data User-defined data pointer, passed through from the API
|
|
* that eventually called the callback.
|
|
* \param str The string data about which the callback is meant to inform.
|
|
*
|
|
* \sa PHYSFS_getCdRomDirsCallback
|
|
* \sa PHYSFS_getSearchPathCallback
|
|
*/
|
|
typedef void (*PHYSFS_StringCallback)(void *data, const char *str);
|
|
|
|
|
|
/**
|
|
* \typedef PHYSFS_EnumFilesCallback
|
|
* \brief Function signature for callbacks that enumerate files.
|
|
*
|
|
* \warning As of PhysicsFS 2.1, Use PHYSFS_EnumerateCallback with
|
|
* PHYSFS_enumerate() instead; it gives you more control over the process.
|
|
*
|
|
* These are used to report a list of directory entries to an original caller,
|
|
* one file/dir/symlink per callback. All strings are UTF-8 encoded.
|
|
* Functions should not try to modify or free any string's memory.
|
|
*
|
|
* These callbacks are used, starting in PhysicsFS 1.1, as an alternative to
|
|
* functions that would return lists that need to be cleaned up with
|
|
* PHYSFS_freeList(). The callback means that the library doesn't need to
|
|
* allocate an entire list and all the strings up front.
|
|
*
|
|
* Be aware that promised data ordering in the list versions are not
|
|
* necessarily so in the callback versions. Check the documentation on
|
|
* specific APIs, but strings may not be sorted as you expect and you might
|
|
* get duplicate strings.
|
|
*
|
|
* \param data User-defined data pointer, passed through from the API
|
|
* that eventually called the callback.
|
|
* \param origdir A string containing the full path, in platform-independent
|
|
* notation, of the directory containing this file. In most
|
|
* cases, this is the directory on which you requested
|
|
* enumeration, passed in the callback for your convenience.
|
|
* \param fname The filename that is being enumerated. It may not be in
|
|
* alphabetical order compared to other callbacks that have
|
|
* fired, and it will not contain the full path. You can
|
|
* recreate the fullpath with $origdir/$fname ... The file
|
|
* can be a subdirectory, a file, a symlink, etc.
|
|
*
|
|
* \sa PHYSFS_enumerateFilesCallback
|
|
*/
|
|
typedef void (*PHYSFS_EnumFilesCallback)(void *data, const char *origdir,
|
|
const char *fname);
|
|
|
|
|
|
/**
|
|
* \fn void PHYSFS_getCdRomDirsCallback(PHYSFS_StringCallback c, void *d)
|
|
* \brief Enumerate CD-ROM directories, using an application-defined callback.
|
|
*
|
|
* Internally, PHYSFS_getCdRomDirs() just calls this function and then builds
|
|
* a list before returning to the application, so functionality is identical
|
|
* except for how the information is represented to the application.
|
|
*
|
|
* Unlike PHYSFS_getCdRomDirs(), this function does not return an array.
|
|
* Rather, it calls a function specified by the application once per
|
|
* detected disc:
|
|
*
|
|
* \code
|
|
*
|
|
* static void foundDisc(void *data, const char *cddir)
|
|
* {
|
|
* printf("cdrom dir [%s] is available.\n", cddir);
|
|
* }
|
|
*
|
|
* // ...
|
|
* PHYSFS_getCdRomDirsCallback(foundDisc, NULL);
|
|
* \endcode
|
|
*
|
|
* This call may block while drives spin up. Be forewarned.
|
|
*
|
|
* \param c Callback function to notify about detected drives.
|
|
* \param d Application-defined data passed to callback. Can be NULL.
|
|
*
|
|
* \sa PHYSFS_StringCallback
|
|
* \sa PHYSFS_getCdRomDirs
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_getCdRomDirsCallback(PHYSFS_StringCallback c, void *d);
|
|
|
|
|
|
/**
|
|
* \fn void PHYSFS_getSearchPathCallback(PHYSFS_StringCallback c, void *d)
|
|
* \brief Enumerate the search path, using an application-defined callback.
|
|
*
|
|
* Internally, PHYSFS_getSearchPath() just calls this function and then builds
|
|
* a list before returning to the application, so functionality is identical
|
|
* except for how the information is represented to the application.
|
|
*
|
|
* Unlike PHYSFS_getSearchPath(), this function does not return an array.
|
|
* Rather, it calls a function specified by the application once per
|
|
* element of the search path:
|
|
*
|
|
* \code
|
|
*
|
|
* static void printSearchPath(void *data, const char *pathItem)
|
|
* {
|
|
* printf("[%s] is in the search path.\n", pathItem);
|
|
* }
|
|
*
|
|
* // ...
|
|
* PHYSFS_getSearchPathCallback(printSearchPath, NULL);
|
|
* \endcode
|
|
*
|
|
* Elements of the search path are reported in order search priority, so the
|
|
* first archive/dir that would be examined when looking for a file is the
|
|
* first element passed through the callback.
|
|
*
|
|
* \param c Callback function to notify about search path elements.
|
|
* \param d Application-defined data passed to callback. Can be NULL.
|
|
*
|
|
* \sa PHYSFS_StringCallback
|
|
* \sa PHYSFS_getSearchPath
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_getSearchPathCallback(PHYSFS_StringCallback c, void *d);
|
|
|
|
|
|
/**
|
|
* \fn void PHYSFS_enumerateFilesCallback(const char *dir, PHYSFS_EnumFilesCallback c, void *d)
|
|
* \brief Get a file listing of a search path's directory, using an application-defined callback.
|
|
*
|
|
* \deprecated As of PhysicsFS 2.1, use PHYSFS_enumerate() instead. This
|
|
* function has no way to report errors (or to have the callback signal an
|
|
* error or request a stop), so if data will be lost, your callback has no
|
|
* way to direct the process, and your calling app has no way to know.
|
|
*
|
|
* As of PhysicsFS 2.1, this function just wraps PHYSFS_enumerate() and
|
|
* ignores errors. Consider using PHYSFS_enumerate() or
|
|
* PHYSFS_enumerateFiles() instead.
|
|
*
|
|
* \sa PHYSFS_enumerate
|
|
* \sa PHYSFS_enumerateFiles
|
|
* \sa PHYSFS_EnumFilesCallback
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_enumerateFilesCallback(const char *dir,
|
|
PHYSFS_EnumFilesCallback c,
|
|
void *d) PHYSFS_DEPRECATED;
|
|
|
|
/**
|
|
* \fn void PHYSFS_utf8FromUcs4(const PHYSFS_uint32 *src, char *dst, PHYSFS_uint64 len)
|
|
* \brief Convert a UCS-4 string to a UTF-8 string.
|
|
*
|
|
* \warning This function will not report an error if there are invalid UCS-4
|
|
* values in the source string. It will replace them with a '?'
|
|
* character and continue on.
|
|
*
|
|
* UCS-4 (aka UTF-32) strings are 32-bits per character: \c wchar_t on Unix.
|
|
*
|
|
* To ensure that the destination buffer is large enough for the conversion,
|
|
* please allocate a buffer that is the same size as the source buffer. UTF-8
|
|
* never uses more than 32-bits per character, so while it may shrink a UCS-4
|
|
* string, it will never expand it.
|
|
*
|
|
* Strings that don't fit in the destination buffer will be truncated, but
|
|
* will always be null-terminated and never have an incomplete UTF-8
|
|
* sequence at the end. If the buffer length is 0, this function does nothing.
|
|
*
|
|
* \param src Null-terminated source string in UCS-4 format.
|
|
* \param dst Buffer to store converted UTF-8 string.
|
|
* \param len Size, in bytes, of destination buffer.
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_utf8FromUcs4(const PHYSFS_uint32 *src, char *dst,
|
|
PHYSFS_uint64 len);
|
|
|
|
/**
|
|
* \fn void PHYSFS_utf8ToUcs4(const char *src, PHYSFS_uint32 *dst, PHYSFS_uint64 len)
|
|
* \brief Convert a UTF-8 string to a UCS-4 string.
|
|
*
|
|
* \warning This function will not report an error if there are invalid UTF-8
|
|
* sequences in the source string. It will replace them with a '?'
|
|
* character and continue on.
|
|
*
|
|
* UCS-4 (aka UTF-32) strings are 32-bits per character: \c wchar_t on Unix.
|
|
*
|
|
* To ensure that the destination buffer is large enough for the conversion,
|
|
* please allocate a buffer that is four times the size of the source buffer.
|
|
* UTF-8 uses from one to four bytes per character, but UCS-4 always uses
|
|
* four, so an entirely low-ASCII string will quadruple in size!
|
|
*
|
|
* Strings that don't fit in the destination buffer will be truncated, but
|
|
* will always be null-terminated and never have an incomplete UCS-4
|
|
* sequence at the end. If the buffer length is 0, this function does nothing.
|
|
*
|
|
* \param src Null-terminated source string in UTF-8 format.
|
|
* \param dst Buffer to store converted UCS-4 string.
|
|
* \param len Size, in bytes, of destination buffer.
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_utf8ToUcs4(const char *src, PHYSFS_uint32 *dst,
|
|
PHYSFS_uint64 len);
|
|
|
|
/**
|
|
* \fn void PHYSFS_utf8FromUcs2(const PHYSFS_uint16 *src, char *dst, PHYSFS_uint64 len)
|
|
* \brief Convert a UCS-2 string to a UTF-8 string.
|
|
*
|
|
* \warning you almost certainly should use PHYSFS_utf8FromUtf16(), which
|
|
* became available in PhysicsFS 2.1, unless you know what you're doing.
|
|
*
|
|
* \warning This function will not report an error if there are invalid UCS-2
|
|
* values in the source string. It will replace them with a '?'
|
|
* character and continue on.
|
|
*
|
|
* UCS-2 strings are 16-bits per character: \c TCHAR on Windows, when building
|
|
* with Unicode support. Please note that modern versions of Windows use
|
|
* UTF-16, which is an extended form of UCS-2, and not UCS-2 itself. You
|
|
* almost certainly want PHYSFS_utf8FromUtf16() instead.
|
|
*
|
|
* To ensure that the destination buffer is large enough for the conversion,
|
|
* please allocate a buffer that is double the size of the source buffer.
|
|
* UTF-8 never uses more than 32-bits per character, so while it may shrink
|
|
* a UCS-2 string, it may also expand it.
|
|
*
|
|
* Strings that don't fit in the destination buffer will be truncated, but
|
|
* will always be null-terminated and never have an incomplete UTF-8
|
|
* sequence at the end. If the buffer length is 0, this function does nothing.
|
|
*
|
|
* \param src Null-terminated source string in UCS-2 format.
|
|
* \param dst Buffer to store converted UTF-8 string.
|
|
* \param len Size, in bytes, of destination buffer.
|
|
*
|
|
* \sa PHYSFS_utf8FromUtf16
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_utf8FromUcs2(const PHYSFS_uint16 *src, char *dst,
|
|
PHYSFS_uint64 len);
|
|
|
|
/**
|
|
* \fn PHYSFS_utf8ToUcs2(const char *src, PHYSFS_uint16 *dst, PHYSFS_uint64 len)
|
|
* \brief Convert a UTF-8 string to a UCS-2 string.
|
|
*
|
|
* \warning you almost certainly should use PHYSFS_utf8ToUtf16(), which
|
|
* became available in PhysicsFS 2.1, unless you know what you're doing.
|
|
*
|
|
* \warning This function will not report an error if there are invalid UTF-8
|
|
* sequences in the source string. It will replace them with a '?'
|
|
* character and continue on.
|
|
*
|
|
* UCS-2 strings are 16-bits per character: \c TCHAR on Windows, when building
|
|
* with Unicode support. Please note that modern versions of Windows use
|
|
* UTF-16, which is an extended form of UCS-2, and not UCS-2 itself. You
|
|
* almost certainly want PHYSFS_utf8ToUtf16() instead, but you need to
|
|
* understand how that changes things, too.
|
|
*
|
|
* To ensure that the destination buffer is large enough for the conversion,
|
|
* please allocate a buffer that is double the size of the source buffer.
|
|
* UTF-8 uses from one to four bytes per character, but UCS-2 always uses
|
|
* two, so an entirely low-ASCII string will double in size!
|
|
*
|
|
* Strings that don't fit in the destination buffer will be truncated, but
|
|
* will always be null-terminated and never have an incomplete UCS-2
|
|
* sequence at the end. If the buffer length is 0, this function does nothing.
|
|
*
|
|
* \param src Null-terminated source string in UTF-8 format.
|
|
* \param dst Buffer to store converted UCS-2 string.
|
|
* \param len Size, in bytes, of destination buffer.
|
|
*
|
|
* \sa PHYSFS_utf8ToUtf16
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_utf8ToUcs2(const char *src, PHYSFS_uint16 *dst,
|
|
PHYSFS_uint64 len);
|
|
|
|
/**
|
|
* \fn void PHYSFS_utf8FromLatin1(const char *src, char *dst, PHYSFS_uint64 len)
|
|
* \brief Convert a UTF-8 string to a Latin1 string.
|
|
*
|
|
* Latin1 strings are 8-bits per character: a popular "high ASCII" encoding.
|
|
*
|
|
* To ensure that the destination buffer is large enough for the conversion,
|
|
* please allocate a buffer that is double the size of the source buffer.
|
|
* UTF-8 expands latin1 codepoints over 127 from 1 to 2 bytes, so the string
|
|
* may grow in some cases.
|
|
*
|
|
* Strings that don't fit in the destination buffer will be truncated, but
|
|
* will always be null-terminated and never have an incomplete UTF-8
|
|
* sequence at the end. If the buffer length is 0, this function does nothing.
|
|
*
|
|
* Please note that we do not supply a UTF-8 to Latin1 converter, since Latin1
|
|
* can't express most Unicode codepoints. It's a legacy encoding; you should
|
|
* be converting away from it at all times.
|
|
*
|
|
* \param src Null-terminated source string in Latin1 format.
|
|
* \param dst Buffer to store converted UTF-8 string.
|
|
* \param len Size, in bytes, of destination buffer.
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_utf8FromLatin1(const char *src, char *dst,
|
|
PHYSFS_uint64 len);
|
|
|
|
/* Everything above this line is part of the PhysicsFS 2.0 API. */
|
|
|
|
/**
|
|
* \fn int PHYSFS_caseFold(const PHYSFS_uint32 from, PHYSFS_uint32 *to)
|
|
* \brief "Fold" a Unicode codepoint to a lowercase equivalent.
|
|
*
|
|
* (This is for limited, hardcore use. If you don't immediately see a need
|
|
* for it, you can probably ignore this forever.)
|
|
*
|
|
* This will convert a Unicode codepoint into its lowercase equivalent.
|
|
* Bogus codepoints and codepoints without a lowercase equivalent will
|
|
* be returned unconverted.
|
|
*
|
|
* Note that you might get multiple codepoints in return! The German Eszett,
|
|
* for example, will fold down to two lowercase latin 's' codepoints. The
|
|
* theory is that if you fold two strings, one with an Eszett and one with
|
|
* "SS" down, they will match.
|
|
*
|
|
* \warning Anyone that is a student of Unicode knows about the "Turkish I"
|
|
* problem. This API does not handle it. Assume this one letter
|
|
* in all of Unicode will definitely fold sort of incorrectly. If
|
|
* you don't know what this is about, you can probably ignore this
|
|
* problem for most of the planet, but perfection is impossible.
|
|
*
|
|
* \param from The codepoint to fold.
|
|
* \param to Buffer to store the folded codepoint values into. This should
|
|
* point to space for at least 3 PHYSFS_uint32 slots.
|
|
* \return The number of codepoints the folding produced. Between 1 and 3.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_caseFold(const PHYSFS_uint32 from, PHYSFS_uint32 *to);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_utf8stricmp(const char *str1, const char *str2)
|
|
* \brief Case-insensitive compare of two UTF-8 strings.
|
|
*
|
|
* This is a strcasecmp/stricmp replacement that expects both strings
|
|
* to be in UTF-8 encoding. It will do "case folding" to decide if the
|
|
* Unicode codepoints in the strings match.
|
|
*
|
|
* If both strings are exclusively low-ASCII characters, this will do the
|
|
* right thing, as that is also valid UTF-8. If there are any high-ASCII
|
|
* chars, this will not do what you expect!
|
|
*
|
|
* It will report which string is "greater than" the other, but be aware that
|
|
* this doesn't necessarily mean anything: 'a' may be "less than" 'b', but
|
|
* a Japanese kuten has no meaningful alphabetically relationship to
|
|
* a Greek lambda, but being able to assign a reliable "value" makes sorting
|
|
* algorithms possible, if not entirely sane. Most cases should treat the
|
|
* return value as "equal" or "not equal".
|
|
*
|
|
* Like stricmp, this expects both strings to be NULL-terminated.
|
|
*
|
|
* \param str1 First string to compare.
|
|
* \param str2 Second string to compare.
|
|
* \return -1 if str1 is "less than" str2, 1 if "greater than", 0 if equal.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_utf8stricmp(const char *str1, const char *str2);
|
|
|
|
/**
|
|
* \fn int PHYSFS_utf16stricmp(const PHYSFS_uint16 *str1, const PHYSFS_uint16 *str2)
|
|
* \brief Case-insensitive compare of two UTF-16 strings.
|
|
*
|
|
* This is a strcasecmp/stricmp replacement that expects both strings
|
|
* to be in UTF-16 encoding. It will do "case folding" to decide if the
|
|
* Unicode codepoints in the strings match.
|
|
*
|
|
* It will report which string is "greater than" the other, but be aware that
|
|
* this doesn't necessarily mean anything: 'a' may be "less than" 'b', but
|
|
* a Japanese kuten has no meaningful alphabetically relationship to
|
|
* a Greek lambda, but being able to assign a reliable "value" makes sorting
|
|
* algorithms possible, if not entirely sane. Most cases should treat the
|
|
* return value as "equal" or "not equal".
|
|
*
|
|
* Like stricmp, this expects both strings to be NULL-terminated.
|
|
*
|
|
* \param str1 First string to compare.
|
|
* \param str2 Second string to compare.
|
|
* \return -1 if str1 is "less than" str2, 1 if "greater than", 0 if equal.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_utf16stricmp(const PHYSFS_uint16 *str1,
|
|
const PHYSFS_uint16 *str2);
|
|
|
|
/**
|
|
* \fn int PHYSFS_ucs4stricmp(const PHYSFS_uint32 *str1, const PHYSFS_uint32 *str2)
|
|
* \brief Case-insensitive compare of two UCS-4 strings.
|
|
*
|
|
* This is a strcasecmp/stricmp replacement that expects both strings
|
|
* to be in UCS-4 (aka UTF-32) encoding. It will do "case folding" to decide
|
|
* if the Unicode codepoints in the strings match.
|
|
*
|
|
* It will report which string is "greater than" the other, but be aware that
|
|
* this doesn't necessarily mean anything: 'a' may be "less than" 'b', but
|
|
* a Japanese kuten has no meaningful alphabetically relationship to
|
|
* a Greek lambda, but being able to assign a reliable "value" makes sorting
|
|
* algorithms possible, if not entirely sane. Most cases should treat the
|
|
* return value as "equal" or "not equal".
|
|
*
|
|
* Like stricmp, this expects both strings to be NULL-terminated.
|
|
*
|
|
* \param str1 First string to compare.
|
|
* \param str2 Second string to compare.
|
|
* \return -1 if str1 is "less than" str2, 1 if "greater than", 0 if equal.
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_ucs4stricmp(const PHYSFS_uint32 *str1,
|
|
const PHYSFS_uint32 *str2);
|
|
|
|
|
|
/**
|
|
* \typedef PHYSFS_EnumerateCallback
|
|
* \brief Possible return values from PHYSFS_EnumerateCallback.
|
|
*
|
|
* These values dictate if an enumeration callback should continue to fire,
|
|
* or stop (and why it is stopping).
|
|
*
|
|
* \sa PHYSFS_EnumerateCallback
|
|
* \sa PHYSFS_enumerate
|
|
*/
|
|
typedef enum PHYSFS_EnumerateCallbackResult
|
|
{
|
|
PHYSFS_ENUM_ERROR = -1, /**< Stop enumerating, report error to app. */
|
|
PHYSFS_ENUM_STOP = 0, /**< Stop enumerating, report success to app. */
|
|
PHYSFS_ENUM_OK = 1 /**< Keep enumerating, no problems */
|
|
} PHYSFS_EnumerateCallbackResult;
|
|
|
|
/**
|
|
* \typedef PHYSFS_EnumerateCallback
|
|
* \brief Function signature for callbacks that enumerate and return results.
|
|
*
|
|
* This is the same thing as PHYSFS_EnumFilesCallback from PhysicsFS 2.0,
|
|
* except it can return a result from the callback: namely: if you're looking
|
|
* for something specific, once you find it, you can tell PhysicsFS to stop
|
|
* enumerating further. This is used with PHYSFS_enumerate(), which we
|
|
* hopefully got right this time. :)
|
|
*
|
|
* \param data User-defined data pointer, passed through from the API
|
|
* that eventually called the callback.
|
|
* \param origdir A string containing the full path, in platform-independent
|
|
* notation, of the directory containing this file. In most
|
|
* cases, this is the directory on which you requested
|
|
* enumeration, passed in the callback for your convenience.
|
|
* \param fname The filename that is being enumerated. It may not be in
|
|
* alphabetical order compared to other callbacks that have
|
|
* fired, and it will not contain the full path. You can
|
|
* recreate the fullpath with $origdir/$fname ... The file
|
|
* can be a subdirectory, a file, a symlink, etc.
|
|
* \return A value from PHYSFS_EnumerateCallbackResult.
|
|
* All other values are (currently) undefined; don't use them.
|
|
*
|
|
* \sa PHYSFS_enumerate
|
|
* \sa PHYSFS_EnumerateCallbackResult
|
|
*/
|
|
typedef PHYSFS_EnumerateCallbackResult (*PHYSFS_EnumerateCallback)(void *data,
|
|
const char *origdir, const char *fname);
|
|
|
|
/**
|
|
* \fn int PHYSFS_enumerate(const char *dir, PHYSFS_EnumerateCallback c, void *d)
|
|
* \brief Get a file listing of a search path's directory, using an application-defined callback, with errors reported.
|
|
*
|
|
* Internally, PHYSFS_enumerateFiles() just calls this function and then builds
|
|
* a list before returning to the application, so functionality is identical
|
|
* except for how the information is represented to the application.
|
|
*
|
|
* Unlike PHYSFS_enumerateFiles(), this function does not return an array.
|
|
* Rather, it calls a function specified by the application once per
|
|
* element of the search path:
|
|
*
|
|
* \code
|
|
*
|
|
* static int printDir(void *data, const char *origdir, const char *fname)
|
|
* {
|
|
* printf(" * We've got [%s] in [%s].\n", fname, origdir);
|
|
* return 1; // give me more data, please.
|
|
* }
|
|
*
|
|
* // ...
|
|
* PHYSFS_enumerate("/some/path", printDir, NULL);
|
|
* \endcode
|
|
*
|
|
* Items sent to the callback are not guaranteed to be in any order whatsoever.
|
|
* There is no sorting done at this level, and if you need that, you should
|
|
* probably use PHYSFS_enumerateFiles() instead, which guarantees
|
|
* alphabetical sorting. This form reports whatever is discovered in each
|
|
* archive before moving on to the next. Even within one archive, we can't
|
|
* guarantee what order it will discover data. <em>Any sorting you find in
|
|
* these callbacks is just pure luck. Do not rely on it.</em> As this walks
|
|
* the entire list of archives, you may receive duplicate filenames.
|
|
*
|
|
* This API and the callbacks themselves are capable of reporting errors.
|
|
* Prior to this API, callbacks had to accept every enumerated item, even if
|
|
* they were only looking for a specific thing and wanted to stop after that,
|
|
* or had a serious error and couldn't alert anyone. Furthermore, if
|
|
* PhysicsFS itself had a problem (disk error or whatnot), it couldn't report
|
|
* it to the calling app, it would just have to skip items or stop
|
|
* enumerating outright, and the caller wouldn't know it had lost some data
|
|
* along the way.
|
|
*
|
|
* Now the caller can be sure it got a complete data set, and its callback has
|
|
* control if it wants enumeration to stop early. See the documentation for
|
|
* PHYSFS_EnumerateCallback for details on how your callback should behave.
|
|
*
|
|
* \param dir Directory, in platform-independent notation, to enumerate.
|
|
* \param c Callback function to notify about search path elements.
|
|
* \param d Application-defined data passed to callback. Can be NULL.
|
|
* \return non-zero on success, zero on failure. Use
|
|
* PHYSFS_getLastErrorCode() to obtain the specific error. If the
|
|
* callback returns PHYSFS_ENUM_STOP to stop early, this will be
|
|
* considered success. Callbacks returning PHYSFS_ENUM_ERROR will
|
|
* make this function return zero and set the error code to
|
|
* PHYSFS_ERR_APP_CALLBACK.
|
|
*
|
|
* \sa PHYSFS_EnumerateCallback
|
|
* \sa PHYSFS_enumerateFiles
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_enumerate(const char *dir, PHYSFS_EnumerateCallback c,
|
|
void *d);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_unmount(const char *oldDir)
|
|
* \brief Remove a directory or archive from the search path.
|
|
*
|
|
* This is functionally equivalent to PHYSFS_removeFromSearchPath(), but that
|
|
* function is deprecated to keep the vocabulary paired with PHYSFS_mount().
|
|
*
|
|
* This must be a (case-sensitive) match to a dir or archive already in the
|
|
* search path, specified in platform-dependent notation.
|
|
*
|
|
* This call will fail (and fail to remove from the path) if the element still
|
|
* has files open in it.
|
|
*
|
|
* \warning This function wants the path to the archive or directory that was
|
|
* mounted (the same string used for the "newDir" argument of
|
|
* PHYSFS_addToSearchPath or any of the mount functions), not the
|
|
* path where it is mounted in the tree (the "mountPoint" argument
|
|
* to any of the mount functions).
|
|
*
|
|
* \param oldDir dir/archive to remove.
|
|
* \return nonzero on success, zero on failure. Use
|
|
* PHYSFS_getLastErrorCode() to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_getSearchPath
|
|
* \sa PHYSFS_mount
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_unmount(const char *oldDir);
|
|
|
|
|
|
/**
|
|
* \fn const PHYSFS_Allocator *PHYSFS_getAllocator(void)
|
|
* \brief Discover the current allocator.
|
|
*
|
|
* (This is for limited, hardcore use. If you don't immediately see a need
|
|
* for it, you can probably ignore this forever.)
|
|
*
|
|
* This function exposes the function pointers that make up the currently used
|
|
* allocator. This can be useful for apps that want to access PhysicsFS's
|
|
* internal, default allocation routines, as well as for external code that
|
|
* wants to share the same allocator, even if the application specified their
|
|
* own.
|
|
*
|
|
* This call is only valid between PHYSFS_init() and PHYSFS_deinit() calls;
|
|
* it will return NULL if the library isn't initialized. As we can't
|
|
* guarantee the state of the internal allocators unless the library is
|
|
* initialized, you shouldn't use any allocator returned here after a call
|
|
* to PHYSFS_deinit().
|
|
*
|
|
* Do not call the returned allocator's Init() or Deinit() methods under any
|
|
* circumstances.
|
|
*
|
|
* If you aren't immediately sure what to do with this function, you can
|
|
* safely ignore it altogether.
|
|
*
|
|
* \return Current allocator, as set by PHYSFS_setAllocator(), or PhysicsFS's
|
|
* internal, default allocator if no application defined allocator
|
|
* is currently set. Will return NULL if the library is not
|
|
* initialized.
|
|
*
|
|
* \sa PHYSFS_Allocator
|
|
* \sa PHYSFS_setAllocator
|
|
*/
|
|
PHYSFS_DECL const PHYSFS_Allocator *PHYSFS_getAllocator(void);
|
|
|
|
|
|
/**
|
|
* \enum PHYSFS_FileType
|
|
* \brief Type of a File
|
|
*
|
|
* Possible types of a file.
|
|
*
|
|
* \sa PHYSFS_stat
|
|
*/
|
|
typedef enum PHYSFS_FileType
|
|
{
|
|
PHYSFS_FILETYPE_REGULAR, /**< a normal file */
|
|
PHYSFS_FILETYPE_DIRECTORY, /**< a directory */
|
|
PHYSFS_FILETYPE_SYMLINK, /**< a symlink */
|
|
PHYSFS_FILETYPE_OTHER /**< something completely different like a device */
|
|
} PHYSFS_FileType;
|
|
|
|
/**
|
|
* \struct PHYSFS_Stat
|
|
* \brief Meta data for a file or directory
|
|
*
|
|
* Container for various meta data about a file in the virtual file system.
|
|
* PHYSFS_stat() uses this structure for returning the information. The time
|
|
* data will be either the number of seconds since the Unix epoch (midnight,
|
|
* Jan 1, 1970), or -1 if the information isn't available or applicable.
|
|
* The (filesize) field is measured in bytes.
|
|
* The (readonly) field tells you whether the archive thinks a file is
|
|
* not writable, but tends to be only an estimate (for example, your write
|
|
* dir might overlap with a .zip file, meaning you _can_ successfully open
|
|
* that path for writing, as it gets created elsewhere.
|
|
*
|
|
* \sa PHYSFS_stat
|
|
* \sa PHYSFS_FileType
|
|
*/
|
|
typedef struct PHYSFS_Stat
|
|
{
|
|
PHYSFS_sint64 filesize; /**< size in bytes, -1 for non-files and unknown */
|
|
PHYSFS_sint64 modtime; /**< last modification time */
|
|
PHYSFS_sint64 createtime; /**< like modtime, but for file creation time */
|
|
PHYSFS_sint64 accesstime; /**< like modtime, but for file access time */
|
|
PHYSFS_FileType filetype; /**< File? Directory? Symlink? */
|
|
int readonly; /**< non-zero if read only, zero if writable. */
|
|
} PHYSFS_Stat;
|
|
|
|
/**
|
|
* \fn int PHYSFS_stat(const char *fname, PHYSFS_Stat *stat)
|
|
* \brief Get various information about a directory or a file.
|
|
*
|
|
* Obtain various information about a file or directory from the meta data.
|
|
*
|
|
* This function will never follow symbolic links. If you haven't enabled
|
|
* symlinks with PHYSFS_permitSymbolicLinks(), stat'ing a symlink will be
|
|
* treated like stat'ing a non-existant file. If symlinks are enabled,
|
|
* stat'ing a symlink will give you information on the link itself and not
|
|
* what it points to.
|
|
*
|
|
* \param fname filename to check, in platform-indepedent notation.
|
|
* \param stat pointer to structure to fill in with data about (fname).
|
|
* \return non-zero on success, zero on failure. On failure, (stat)'s
|
|
* contents are undefined.
|
|
*
|
|
* \sa PHYSFS_Stat
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_stat(const char *fname, PHYSFS_Stat *stat);
|
|
|
|
|
|
/**
|
|
* \fn void PHYSFS_utf8FromUtf16(const PHYSFS_uint16 *src, char *dst, PHYSFS_uint64 len)
|
|
* \brief Convert a UTF-16 string to a UTF-8 string.
|
|
*
|
|
* \warning This function will not report an error if there are invalid UTF-16
|
|
* sequences in the source string. It will replace them with a '?'
|
|
* character and continue on.
|
|
*
|
|
* UTF-16 strings are 16-bits per character (except some chars, which are
|
|
* 32-bits): \c TCHAR on Windows, when building with Unicode support. Modern
|
|
* Windows releases use UTF-16. Windows releases before 2000 used TCHAR, but
|
|
* only handled UCS-2. UTF-16 _is_ UCS-2, except for the characters that
|
|
* are 4 bytes, which aren't representable in UCS-2 at all anyhow. If you
|
|
* aren't sure, you should be using UTF-16 at this point on Windows.
|
|
*
|
|
* To ensure that the destination buffer is large enough for the conversion,
|
|
* please allocate a buffer that is double the size of the source buffer.
|
|
* UTF-8 never uses more than 32-bits per character, so while it may shrink
|
|
* a UTF-16 string, it may also expand it.
|
|
*
|
|
* Strings that don't fit in the destination buffer will be truncated, but
|
|
* will always be null-terminated and never have an incomplete UTF-8
|
|
* sequence at the end. If the buffer length is 0, this function does nothing.
|
|
*
|
|
* \param src Null-terminated source string in UTF-16 format.
|
|
* \param dst Buffer to store converted UTF-8 string.
|
|
* \param len Size, in bytes, of destination buffer.
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_utf8FromUtf16(const PHYSFS_uint16 *src, char *dst,
|
|
PHYSFS_uint64 len);
|
|
|
|
/**
|
|
* \fn PHYSFS_utf8ToUtf16(const char *src, PHYSFS_uint16 *dst, PHYSFS_uint64 len)
|
|
* \brief Convert a UTF-8 string to a UTF-16 string.
|
|
*
|
|
* \warning This function will not report an error if there are invalid UTF-8
|
|
* sequences in the source string. It will replace them with a '?'
|
|
* character and continue on.
|
|
*
|
|
* UTF-16 strings are 16-bits per character (except some chars, which are
|
|
* 32-bits): \c TCHAR on Windows, when building with Unicode support. Modern
|
|
* Windows releases use UTF-16. Windows releases before 2000 used TCHAR, but
|
|
* only handled UCS-2. UTF-16 _is_ UCS-2, except for the characters that
|
|
* are 4 bytes, which aren't representable in UCS-2 at all anyhow. If you
|
|
* aren't sure, you should be using UTF-16 at this point on Windows.
|
|
*
|
|
* To ensure that the destination buffer is large enough for the conversion,
|
|
* please allocate a buffer that is double the size of the source buffer.
|
|
* UTF-8 uses from one to four bytes per character, but UTF-16 always uses
|
|
* two to four, so an entirely low-ASCII string will double in size! The
|
|
* UTF-16 characters that would take four bytes also take four bytes in UTF-8,
|
|
* so you don't need to allocate 4x the space just in case: double will do.
|
|
*
|
|
* Strings that don't fit in the destination buffer will be truncated, but
|
|
* will always be null-terminated and never have an incomplete UTF-16
|
|
* surrogate pair at the end. If the buffer length is 0, this function does
|
|
* nothing.
|
|
*
|
|
* \param src Null-terminated source string in UTF-8 format.
|
|
* \param dst Buffer to store converted UTF-16 string.
|
|
* \param len Size, in bytes, of destination buffer.
|
|
*
|
|
* \sa PHYSFS_utf8ToUtf16
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_utf8ToUtf16(const char *src, PHYSFS_uint16 *dst,
|
|
PHYSFS_uint64 len);
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_sint64 PHYSFS_readBytes(PHYSFS_File *handle, void *buffer, PHYSFS_uint64 len)
|
|
* \brief Read bytes from a PhysicsFS filehandle
|
|
*
|
|
* The file must be opened for reading.
|
|
*
|
|
* \param handle handle returned from PHYSFS_openRead().
|
|
* \param buffer buffer of at least (len) bytes to store read data into.
|
|
* \param len number of bytes being read from (handle).
|
|
* \return number of bytes read. This may be less than (len); this does not
|
|
* signify an error, necessarily (a short read may mean EOF).
|
|
* PHYSFS_getLastErrorCode() can shed light on the reason this might
|
|
* be < (len), as can PHYSFS_eof(). -1 if complete failure.
|
|
*
|
|
* \sa PHYSFS_eof
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint64 PHYSFS_readBytes(PHYSFS_File *handle, void *buffer,
|
|
PHYSFS_uint64 len);
|
|
|
|
/**
|
|
* \fn PHYSFS_sint64 PHYSFS_writeBytes(PHYSFS_File *handle, const void *buffer, PHYSFS_uint64 len)
|
|
* \brief Write data to a PhysicsFS filehandle
|
|
*
|
|
* The file must be opened for writing.
|
|
*
|
|
* Please note that while (len) is an unsigned 64-bit integer, you are limited
|
|
* to 63 bits (9223372036854775807 bytes), so we can return a negative value
|
|
* on error. If length is greater than 0x7FFFFFFFFFFFFFFF, this function will
|
|
* immediately fail. For systems without a 64-bit datatype, you are limited
|
|
* to 31 bits (0x7FFFFFFF, or 2147483647 bytes). We trust most things won't
|
|
* need to do multiple gigabytes of i/o in one call anyhow, but why limit
|
|
* things?
|
|
*
|
|
* \param handle retval from PHYSFS_openWrite() or PHYSFS_openAppend().
|
|
* \param buffer buffer of (len) bytes to write to (handle).
|
|
* \param len number of bytes being written to (handle).
|
|
* \return number of bytes written. This may be less than (len); in the case
|
|
* of an error, the system may try to write as many bytes as possible,
|
|
* so an incomplete write might occur. PHYSFS_getLastErrorCode() can
|
|
* shed light on the reason this might be < (len). -1 if complete
|
|
* failure.
|
|
*/
|
|
PHYSFS_DECL PHYSFS_sint64 PHYSFS_writeBytes(PHYSFS_File *handle,
|
|
const void *buffer,
|
|
PHYSFS_uint64 len);
|
|
|
|
|
|
/**
|
|
* \struct PHYSFS_Io
|
|
* \brief An abstract i/o interface.
|
|
*
|
|
* \warning This is advanced, hardcore stuff. You don't need this unless you
|
|
* really know what you're doing. Most apps will not need this.
|
|
*
|
|
* Historically, PhysicsFS provided access to the physical filesystem and
|
|
* archives within that filesystem. However, sometimes you need more power
|
|
* than this. Perhaps you need to provide an archive that is entirely
|
|
* contained in RAM, or you need to bridge some other file i/o API to
|
|
* PhysicsFS, or you need to translate the bits (perhaps you have a
|
|
* a standard .zip file that's encrypted, and you need to decrypt on the fly
|
|
* for the unsuspecting zip archiver).
|
|
*
|
|
* A PHYSFS_Io is the interface that Archivers use to get archive data.
|
|
* Historically, this has mapped to file i/o to the physical filesystem, but
|
|
* as of PhysicsFS 2.1, applications can provide their own i/o implementations
|
|
* at runtime.
|
|
*
|
|
* This interface isn't necessarily a good universal fit for i/o. There are a
|
|
* few requirements of note:
|
|
*
|
|
* - They only do blocking i/o (at least, for now).
|
|
* - They need to be able to duplicate. If you have a file handle from
|
|
* fopen(), you need to be able to create a unique clone of it (so we
|
|
* have two handles to the same file that can both seek/read/etc without
|
|
* stepping on each other).
|
|
* - They need to know the size of their entire data set.
|
|
* - They need to be able to seek and rewind on demand.
|
|
*
|
|
* ...in short, you're probably not going to write an HTTP implementation.
|
|
*
|
|
* Thread safety: PHYSFS_Io implementations are not guaranteed to be thread
|
|
* safe in themselves. Under the hood where PhysicsFS uses them, the library
|
|
* provides its own locks. If you plan to use them directly from separate
|
|
* threads, you should either use mutexes to protect them, or don't use the
|
|
* same PHYSFS_Io from two threads at the same time.
|
|
*
|
|
* \sa PHYSFS_mountIo
|
|
*/
|
|
typedef struct PHYSFS_Io
|
|
{
|
|
/**
|
|
* \brief Binary compatibility information.
|
|
*
|
|
* This must be set to zero at this time. Future versions of this
|
|
* struct will increment this field, so we know what a given
|
|
* implementation supports. We'll presumably keep supporting older
|
|
* versions as we offer new features, though.
|
|
*/
|
|
PHYSFS_uint32 version;
|
|
|
|
/**
|
|
* \brief Instance data for this struct.
|
|
*
|
|
* Each instance has a pointer associated with it that can be used to
|
|
* store anything it likes. This pointer is per-instance of the stream,
|
|
* so presumably it will change when calling duplicate(). This can be
|
|
* deallocated during the destroy() method.
|
|
*/
|
|
void *opaque;
|
|
|
|
/**
|
|
* \brief Read more data.
|
|
*
|
|
* Read (len) bytes from the interface, at the current i/o position, and
|
|
* store them in (buffer). The current i/o position should move ahead
|
|
* by the number of bytes successfully read.
|
|
*
|
|
* You don't have to implement this; set it to NULL if not implemented.
|
|
* This will only be used if the file is opened for reading. If set to
|
|
* NULL, a default implementation that immediately reports failure will
|
|
* be used.
|
|
*
|
|
* \param io The i/o instance to read from.
|
|
* \param buf The buffer to store data into. It must be at least
|
|
* (len) bytes long and can't be NULL.
|
|
* \param len The number of bytes to read from the interface.
|
|
* \return number of bytes read from file, 0 on EOF, -1 if complete
|
|
* failure.
|
|
*/
|
|
PHYSFS_sint64 (*read)(struct PHYSFS_Io *io, void *buf, PHYSFS_uint64 len);
|
|
|
|
/**
|
|
* \brief Write more data.
|
|
*
|
|
* Write (len) bytes from (buffer) to the interface at the current i/o
|
|
* position. The current i/o position should move ahead by the number of
|
|
* bytes successfully written.
|
|
*
|
|
* You don't have to implement this; set it to NULL if not implemented.
|
|
* This will only be used if the file is opened for writing. If set to
|
|
* NULL, a default implementation that immediately reports failure will
|
|
* be used.
|
|
*
|
|
* You are allowed to buffer; a write can succeed here and then later
|
|
* fail when flushing. Note that PHYSFS_setBuffer() may be operating a
|
|
* level above your i/o, so you should usually not implement your
|
|
* own buffering routines.
|
|
*
|
|
* \param io The i/o instance to write to.
|
|
* \param buffer The buffer to read data from. It must be at least
|
|
* (len) bytes long and can't be NULL.
|
|
* \param len The number of bytes to read from (buffer).
|
|
* \return number of bytes written to file, -1 if complete failure.
|
|
*/
|
|
PHYSFS_sint64 (*write)(struct PHYSFS_Io *io, const void *buffer,
|
|
PHYSFS_uint64 len);
|
|
|
|
/**
|
|
* \brief Move i/o position to a given byte offset from start.
|
|
*
|
|
* This method moves the i/o position, so the next read/write will
|
|
* be of the byte at (offset) offset. Seeks past the end of file should
|
|
* be treated as an error condition.
|
|
*
|
|
* \param io The i/o instance to seek.
|
|
* \param offset The new byte offset for the i/o position.
|
|
* \return non-zero on success, zero on error.
|
|
*/
|
|
int (*seek)(struct PHYSFS_Io *io, PHYSFS_uint64 offset);
|
|
|
|
/**
|
|
* \brief Report current i/o position.
|
|
*
|
|
* Return bytes offset, or -1 if you aren't able to determine. A failure
|
|
* will almost certainly be fatal to further use of this stream, so you
|
|
* may not leave this unimplemented.
|
|
*
|
|
* \param io The i/o instance to query.
|
|
* \return The current byte offset for the i/o position, -1 if unknown.
|
|
*/
|
|
PHYSFS_sint64 (*tell)(struct PHYSFS_Io *io);
|
|
|
|
/**
|
|
* \brief Determine size of the i/o instance's dataset.
|
|
*
|
|
* Return number of bytes available in the file, or -1 if you
|
|
* aren't able to determine. A failure will almost certainly be fatal
|
|
* to further use of this stream, so you may not leave this unimplemented.
|
|
*
|
|
* \param io The i/o instance to query.
|
|
* \return Total size, in bytes, of the dataset.
|
|
*/
|
|
PHYSFS_sint64 (*length)(struct PHYSFS_Io *io);
|
|
|
|
/**
|
|
* \brief Duplicate this i/o instance.
|
|
*
|
|
* This needs to result in a full copy of this PHYSFS_Io, that can live
|
|
* completely independently. The copy needs to be able to perform all
|
|
* its operations without altering the original, including either object
|
|
* being destroyed separately (so, for example: they can't share a file
|
|
* handle; they each need their own).
|
|
*
|
|
* If you can't duplicate a handle, it's legal to return NULL, but you
|
|
* almost certainly need this functionality if you want to use this to
|
|
* PHYSFS_Io to back an archive.
|
|
*
|
|
* \param io The i/o instance to duplicate.
|
|
* \return A new value for a stream's (opaque) field, or NULL on error.
|
|
*/
|
|
struct PHYSFS_Io *(*duplicate)(struct PHYSFS_Io *io);
|
|
|
|
/**
|
|
* \brief Flush resources to media, or wherever.
|
|
*
|
|
* This is the chance to report failure for writes that had claimed
|
|
* success earlier, but still had a chance to actually fail. This method
|
|
* can be NULL if flushing isn't necessary.
|
|
*
|
|
* This function may be called before destroy(), as it can report failure
|
|
* and destroy() can not. It may be called at other times, too.
|
|
*
|
|
* \param io The i/o instance to flush.
|
|
* \return Zero on error, non-zero on success.
|
|
*/
|
|
int (*flush)(struct PHYSFS_Io *io);
|
|
|
|
/**
|
|
* \brief Cleanup and deallocate i/o instance.
|
|
*
|
|
* Free associated resources, including (opaque) if applicable.
|
|
*
|
|
* This function must always succeed: as such, it returns void. The
|
|
* system may call your flush() method before this. You may report
|
|
* failure there if necessary. This method may still be called if
|
|
* flush() fails, in which case you'll have to abandon unflushed data
|
|
* and other failing conditions and clean up.
|
|
*
|
|
* Once this method is called for a given instance, the system will assume
|
|
* it is unsafe to touch that instance again and will discard any
|
|
* references to it.
|
|
*
|
|
* \param s The i/o instance to destroy.
|
|
*/
|
|
void (*destroy)(struct PHYSFS_Io *io);
|
|
} PHYSFS_Io;
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_mountIo(PHYSFS_Io *io, const char *newDir, const char *mountPoint, int appendToPath)
|
|
* \brief Add an archive, built on a PHYSFS_Io, to the search path.
|
|
*
|
|
* \warning Unless you have some special, low-level need, you should be using
|
|
* PHYSFS_mount() instead of this.
|
|
*
|
|
* This function operates just like PHYSFS_mount(), but takes a PHYSFS_Io
|
|
* instead of a pathname. Behind the scenes, PHYSFS_mount() calls this
|
|
* function with a physical-filesystem-based PHYSFS_Io.
|
|
*
|
|
* (newDir) must be a unique string to identify this archive. It is used
|
|
* to optimize archiver selection (if you name it XXXXX.zip, we might try
|
|
* the ZIP archiver first, for example, or directly choose an archiver that
|
|
* can only trust the data is valid by filename extension). It doesn't
|
|
* need to refer to a real file at all. If the filename extension isn't
|
|
* helpful, the system will try every archiver until one works or none
|
|
* of them do. This filename must be unique, as the system won't allow you
|
|
* to have two archives with the same name.
|
|
*
|
|
* (io) must remain until the archive is unmounted. When the archive is
|
|
* unmounted, the system will call (io)->destroy(io), which will give you
|
|
* a chance to free your resources.
|
|
*
|
|
* If this function fails, (io)->destroy(io) is not called.
|
|
*
|
|
* \param io i/o instance for archive to add to the path.
|
|
* \param newDir Filename that can represent this stream.
|
|
* \param mountPoint Location in the interpolated tree that this archive
|
|
* will be "mounted", in platform-independent notation.
|
|
* NULL or "" is equivalent to "/".
|
|
* \param appendToPath nonzero to append to search path, zero to prepend.
|
|
* \return nonzero if added to path, zero on failure (bogus archive, stream
|
|
* i/o issue, etc). Use PHYSFS_getLastErrorCode() to obtain
|
|
* the specific error.
|
|
*
|
|
* \sa PHYSFS_unmount
|
|
* \sa PHYSFS_getSearchPath
|
|
* \sa PHYSFS_getMountPoint
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_mountIo(PHYSFS_Io *io, const char *newDir,
|
|
const char *mountPoint, int appendToPath);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_mountMemory(const void *buf, PHYSFS_uint64 len, void (*del)(void *), const char *newDir, const char *mountPoint, int appendToPath)
|
|
* \brief Add an archive, contained in a memory buffer, to the search path.
|
|
*
|
|
* \warning Unless you have some special, low-level need, you should be using
|
|
* PHYSFS_mount() instead of this.
|
|
*
|
|
* This function operates just like PHYSFS_mount(), but takes a memory buffer
|
|
* instead of a pathname. This buffer contains all the data of the archive,
|
|
* and is used instead of a real file in the physical filesystem.
|
|
*
|
|
* (newDir) must be a unique string to identify this archive. It is used
|
|
* to optimize archiver selection (if you name it XXXXX.zip, we might try
|
|
* the ZIP archiver first, for example, or directly choose an archiver that
|
|
* can only trust the data is valid by filename extension). It doesn't
|
|
* need to refer to a real file at all. If the filename extension isn't
|
|
* helpful, the system will try every archiver until one works or none
|
|
* of them do. This filename must be unique, as the system won't allow you
|
|
* to have two archives with the same name.
|
|
*
|
|
* (ptr) must remain until the archive is unmounted. When the archive is
|
|
* unmounted, the system will call (del)(ptr), which will notify you that
|
|
* the system is done with the buffer, and give you a chance to free your
|
|
* resources. (del) can be NULL, in which case the system will make no
|
|
* attempt to free the buffer.
|
|
*
|
|
* If this function fails, (del) is not called.
|
|
*
|
|
* \param buf Address of the memory buffer containing the archive data.
|
|
* \param len Size of memory buffer, in bytes.
|
|
* \param del A callback that triggers upon unmount. Can be NULL.
|
|
* \param newDir Filename that can represent this stream.
|
|
* \param mountPoint Location in the interpolated tree that this archive
|
|
* will be "mounted", in platform-independent notation.
|
|
* NULL or "" is equivalent to "/".
|
|
* \param appendToPath nonzero to append to search path, zero to prepend.
|
|
* \return nonzero if added to path, zero on failure (bogus archive, etc).
|
|
* Use PHYSFS_getLastErrorCode() to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_unmount
|
|
* \sa PHYSFS_getSearchPath
|
|
* \sa PHYSFS_getMountPoint
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_mountMemory(const void *buf, PHYSFS_uint64 len,
|
|
void (*del)(void *), const char *newDir,
|
|
const char *mountPoint, int appendToPath);
|
|
|
|
|
|
/**
|
|
* \fn int PHYSFS_mountHandle(PHYSFS_File *file, const char *newDir, const char *mountPoint, int appendToPath)
|
|
* \brief Add an archive, contained in a PHYSFS_File handle, to the search path.
|
|
*
|
|
* \warning Unless you have some special, low-level need, you should be using
|
|
* PHYSFS_mount() instead of this.
|
|
*
|
|
* \warning Archives-in-archives may be very slow! While a PHYSFS_File can
|
|
* seek even when the data is compressed, it may do so by rewinding
|
|
* to the start and decompressing everything before the seek point.
|
|
* Normal archive usage may do a lot of seeking behind the scenes.
|
|
* As such, you might find normal archive usage extremely painful
|
|
* if mounted this way. Plan accordingly: if you, say, have a
|
|
* self-extracting .zip file, and want to mount something in it,
|
|
* compress the contents of the inner archive and make sure the outer
|
|
* .zip file doesn't compress the inner archive too.
|
|
*
|
|
* This function operates just like PHYSFS_mount(), but takes a PHYSFS_File
|
|
* handle instead of a pathname. This handle contains all the data of the
|
|
* archive, and is used instead of a real file in the physical filesystem.
|
|
* The PHYSFS_File may be backed by a real file in the physical filesystem,
|
|
* but isn't necessarily. The most popular use for this is likely to mount
|
|
* archives stored inside other archives.
|
|
*
|
|
* (newDir) must be a unique string to identify this archive. It is used
|
|
* to optimize archiver selection (if you name it XXXXX.zip, we might try
|
|
* the ZIP archiver first, for example, or directly choose an archiver that
|
|
* can only trust the data is valid by filename extension). It doesn't
|
|
* need to refer to a real file at all. If the filename extension isn't
|
|
* helpful, the system will try every archiver until one works or none
|
|
* of them do. This filename must be unique, as the system won't allow you
|
|
* to have two archives with the same name.
|
|
*
|
|
* (file) must remain until the archive is unmounted. When the archive is
|
|
* unmounted, the system will call PHYSFS_close(file). If you need this
|
|
* handle to survive, you will have to wrap this in a PHYSFS_Io and use
|
|
* PHYSFS_mountIo() instead.
|
|
*
|
|
* If this function fails, PHYSFS_close(file) is not called.
|
|
*
|
|
* \param file The PHYSFS_File handle containing archive data.
|
|
* \param newDir Filename that can represent this stream.
|
|
* \param mountPoint Location in the interpolated tree that this archive
|
|
* will be "mounted", in platform-independent notation.
|
|
* NULL or "" is equivalent to "/".
|
|
* \param appendToPath nonzero to append to search path, zero to prepend.
|
|
* \return nonzero if added to path, zero on failure (bogus archive, etc).
|
|
* Use PHYSFS_getLastErrorCode() to obtain the specific error.
|
|
*
|
|
* \sa PHYSFS_unmount
|
|
* \sa PHYSFS_getSearchPath
|
|
* \sa PHYSFS_getMountPoint
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_mountHandle(PHYSFS_File *file, const char *newDir,
|
|
const char *mountPoint, int appendToPath);
|
|
|
|
|
|
/**
|
|
* \enum PHYSFS_ErrorCode
|
|
* \brief Values that represent specific causes of failure.
|
|
*
|
|
* Most of the time, you should only concern yourself with whether a given
|
|
* operation failed or not, but there may be occasions where you plan to
|
|
* handle a specific failure case gracefully, so we provide specific error
|
|
* codes.
|
|
*
|
|
* Most of these errors are a little vague, and most aren't things you can
|
|
* fix...if there's a permission error, for example, all you can really do
|
|
* is pass that information on to the user and let them figure out how to
|
|
* handle it. In most these cases, your program should only care that it
|
|
* failed to accomplish its goals, and not care specifically why.
|
|
*
|
|
* \sa PHYSFS_getLastErrorCode
|
|
* \sa PHYSFS_getErrorByCode
|
|
*/
|
|
typedef enum PHYSFS_ErrorCode
|
|
{
|
|
PHYSFS_ERR_OK, /**< Success; no error. */
|
|
PHYSFS_ERR_OTHER_ERROR, /**< Error not otherwise covered here. */
|
|
PHYSFS_ERR_OUT_OF_MEMORY, /**< Memory allocation failed. */
|
|
PHYSFS_ERR_NOT_INITIALIZED, /**< PhysicsFS is not initialized. */
|
|
PHYSFS_ERR_IS_INITIALIZED, /**< PhysicsFS is already initialized. */
|
|
PHYSFS_ERR_ARGV0_IS_NULL, /**< Needed argv[0], but it is NULL. */
|
|
PHYSFS_ERR_UNSUPPORTED, /**< Operation or feature unsupported. */
|
|
PHYSFS_ERR_PAST_EOF, /**< Attempted to access past end of file. */
|
|
PHYSFS_ERR_FILES_STILL_OPEN, /**< Files still open. */
|
|
PHYSFS_ERR_INVALID_ARGUMENT, /**< Bad parameter passed to an function. */
|
|
PHYSFS_ERR_NOT_MOUNTED, /**< Requested archive/dir not mounted. */
|
|
PHYSFS_ERR_NOT_FOUND, /**< File (or whatever) not found. */
|
|
PHYSFS_ERR_SYMLINK_FORBIDDEN,/**< Symlink seen when not permitted. */
|
|
PHYSFS_ERR_NO_WRITE_DIR, /**< No write dir has been specified. */
|
|
PHYSFS_ERR_OPEN_FOR_READING, /**< Wrote to a file opened for reading. */
|
|
PHYSFS_ERR_OPEN_FOR_WRITING, /**< Read from a file opened for writing. */
|
|
PHYSFS_ERR_NOT_A_FILE, /**< Needed a file, got a directory (etc). */
|
|
PHYSFS_ERR_READ_ONLY, /**< Wrote to a read-only filesystem. */
|
|
PHYSFS_ERR_CORRUPT, /**< Corrupted data encountered. */
|
|
PHYSFS_ERR_SYMLINK_LOOP, /**< Infinite symbolic link loop. */
|
|
PHYSFS_ERR_IO, /**< i/o error (hardware failure, etc). */
|
|
PHYSFS_ERR_PERMISSION, /**< Permission denied. */
|
|
PHYSFS_ERR_NO_SPACE, /**< No space (disk full, over quota, etc) */
|
|
PHYSFS_ERR_BAD_FILENAME, /**< Filename is bogus/insecure. */
|
|
PHYSFS_ERR_BUSY, /**< Tried to modify a file the OS needs. */
|
|
PHYSFS_ERR_DIR_NOT_EMPTY, /**< Tried to delete dir with files in it. */
|
|
PHYSFS_ERR_OS_ERROR, /**< Unspecified OS-level error. */
|
|
PHYSFS_ERR_DUPLICATE, /**< Duplicate entry. */
|
|
PHYSFS_ERR_BAD_PASSWORD, /**< Bad password. */
|
|
PHYSFS_ERR_APP_CALLBACK /**< Application callback reported error. */
|
|
} PHYSFS_ErrorCode;
|
|
|
|
|
|
/**
|
|
* \fn PHYSFS_ErrorCode PHYSFS_getLastErrorCode(void)
|
|
* \brief Get machine-readable error information.
|
|
*
|
|
* Get the last PhysicsFS error message as an integer value. This will return
|
|
* PHYSFS_ERR_OK if there's been no error since the last call to this
|
|
* function. Each thread has a unique error state associated with it, but
|
|
* each time a new error message is set, it will overwrite the previous one
|
|
* associated with that thread. It is safe to call this function at anytime,
|
|
* even before PHYSFS_init().
|
|
*
|
|
* PHYSFS_getLastError() and PHYSFS_getLastErrorCode() both reset the same
|
|
* thread-specific error state. Calling one will wipe out the other's
|
|
* data. If you need both, call PHYSFS_getLastErrorCode(), then pass that
|
|
* value to PHYSFS_getErrorByCode().
|
|
*
|
|
* Generally, applications should only concern themselves with whether a
|
|
* given function failed; however, if you require more specifics, you can
|
|
* try this function to glean information, if there's some specific problem
|
|
* you're expecting and plan to handle. But with most things that involve
|
|
* file systems, the best course of action is usually to give up, report the
|
|
* problem to the user, and let them figure out what should be done about it.
|
|
* For that, you might prefer PHYSFS_getErrorByCode() instead.
|
|
*
|
|
* \return Enumeration value that represents last reported error.
|
|
*
|
|
* \sa PHYSFS_getErrorByCode
|
|
*/
|
|
PHYSFS_DECL PHYSFS_ErrorCode PHYSFS_getLastErrorCode(void);
|
|
|
|
|
|
/**
|
|
* \fn const char *PHYSFS_getErrorByCode(PHYSFS_ErrorCode code)
|
|
* \brief Get human-readable description string for a given error code.
|
|
*
|
|
* Get a static string, in UTF-8 format, that represents an English
|
|
* description of a given error code.
|
|
*
|
|
* This string is guaranteed to never change (although we may add new strings
|
|
* for new error codes in later versions of PhysicsFS), so you can use it
|
|
* for keying a localization dictionary.
|
|
*
|
|
* It is safe to call this function at anytime, even before PHYSFS_init().
|
|
*
|
|
* These strings are meant to be passed on directly to the user.
|
|
* Generally, applications should only concern themselves with whether a
|
|
* given function failed, but not care about the specifics much.
|
|
*
|
|
* Do not attempt to free the returned strings; they are read-only and you
|
|
* don't own their memory pages.
|
|
*
|
|
* \param code Error code to convert to a string.
|
|
* \return READ ONLY string of requested error message, NULL if this
|
|
* is not a valid PhysicsFS error code. Always check for NULL if
|
|
* you might be looking up an error code that didn't exist in an
|
|
* earlier version of PhysicsFS.
|
|
*
|
|
* \sa PHYSFS_getLastErrorCode
|
|
*/
|
|
PHYSFS_DECL const char *PHYSFS_getErrorByCode(PHYSFS_ErrorCode code);
|
|
|
|
/**
|
|
* \fn void PHYSFS_setErrorCode(PHYSFS_ErrorCode code)
|
|
* \brief Set the current thread's error code.
|
|
*
|
|
* This lets you set the value that will be returned by the next call to
|
|
* PHYSFS_getLastErrorCode(). This will replace any existing error code,
|
|
* whether set by your application or internally by PhysicsFS.
|
|
*
|
|
* Error codes are stored per-thread; what you set here will not be
|
|
* accessible to another thread.
|
|
*
|
|
* Any call into PhysicsFS may change the current error code, so any code you
|
|
* set here is somewhat fragile, and thus you shouldn't build any serious
|
|
* error reporting framework on this function. The primary goal of this
|
|
* function is to allow PHYSFS_Io implementations to set the error state,
|
|
* which generally will be passed back to your application when PhysicsFS
|
|
* makes a PHYSFS_Io call that fails internally.
|
|
*
|
|
* This function doesn't care if the error code is a value known to PhysicsFS
|
|
* or not (but PHYSFS_getErrorByCode() will return NULL for unknown values).
|
|
* The value will be reported unmolested by PHYSFS_getLastErrorCode().
|
|
*
|
|
* \param code Error code to become the current thread's new error state.
|
|
*
|
|
* \sa PHYSFS_getLastErrorCode
|
|
* \sa PHYSFS_getErrorByCode
|
|
*/
|
|
PHYSFS_DECL void PHYSFS_setErrorCode(PHYSFS_ErrorCode code);
|
|
|
|
|
|
/**
|
|
* \fn const char *PHYSFS_getPrefDir(const char *org, const char *app)
|
|
* \brief Get the user-and-app-specific path where files can be written.
|
|
*
|
|
* Helper function.
|
|
*
|
|
* Get the "pref dir". This is meant to be where users can write personal
|
|
* files (preferences and save games, etc) that are specific to your
|
|
* application. This directory is unique per user, per application.
|
|
*
|
|
* This function will decide the appropriate location in the native filesystem,
|
|
* create the directory if necessary, and return a string in
|
|
* platform-dependent notation, suitable for passing to PHYSFS_setWriteDir().
|
|
*
|
|
* On Windows, this might look like:
|
|
* "C:\\Users\\bob\\AppData\\Roaming\\My Company\\My Program Name"
|
|
*
|
|
* On Linux, this might look like:
|
|
* "/home/bob/.local/share/My Program Name"
|
|
*
|
|
* On Mac OS X, this might look like:
|
|
* "/Users/bob/Library/Application Support/My Program Name"
|
|
*
|
|
* (etc.)
|
|
*
|
|
* You should probably use the pref dir for your write dir, and also put it
|
|
* near the beginning of your search path. Older versions of PhysicsFS
|
|
* offered only PHYSFS_getUserDir() and left you to figure out where the
|
|
* files should go under that tree. This finds the correct location
|
|
* for whatever platform, which not only changes between operating systems,
|
|
* but also versions of the same operating system.
|
|
*
|
|
* You specify the name of your organization (if it's not a real organization,
|
|
* your name or an Internet domain you own might do) and the name of your
|
|
* application. These should be proper names.
|
|
*
|
|
* Both the (org) and (app) strings may become part of a directory name, so
|
|
* please follow these rules:
|
|
*
|
|
* - Try to use the same org string (including case-sensitivity) for
|
|
* all your applications that use this function.
|
|
* - Always use a unique app string for each one, and make sure it never
|
|
* changes for an app once you've decided on it.
|
|
* - Unicode characters are legal, as long as it's UTF-8 encoded, but...
|
|
* - ...only use letters, numbers, and spaces. Avoid punctuation like
|
|
* "Game Name 2: Bad Guy's Revenge!" ... "Game Name 2" is sufficient.
|
|
*
|
|
* The pointer returned by this function remains valid until you call this
|
|
* function again, or call PHYSFS_deinit(). This is not necessarily a fast
|
|
* call, though, so you should call this once at startup and copy the string
|
|
* if you need it.
|
|
*
|
|
* You should assume the path returned by this function is the only safe
|
|
* place to write files (and that PHYSFS_getUserDir() and PHYSFS_getBaseDir(),
|
|
* while they might be writable, or even parents of the returned path, aren't
|
|
* where you should be writing things).
|
|
*
|
|
* \param org The name of your organization.
|
|
* \param app The name of your application.
|
|
* \return READ ONLY string of user dir in platform-dependent notation. NULL
|
|
* if there's a problem (creating directory failed, etc).
|
|
*
|
|
* \sa PHYSFS_getBaseDir
|
|
* \sa PHYSFS_getUserDir
|
|
*/
|
|
PHYSFS_DECL const char *PHYSFS_getPrefDir(const char *org, const char *app);
|
|
|
|
|
|
/**
|
|
* \struct PHYSFS_Archiver
|
|
* \brief Abstract interface to provide support for user-defined archives.
|
|
*
|
|
* \warning This is advanced, hardcore stuff. You don't need this unless you
|
|
* really know what you're doing. Most apps will not need this.
|
|
*
|
|
* Historically, PhysicsFS provided a means to mount various archive file
|
|
* formats, and physical directories in the native filesystem. However,
|
|
* applications have been limited to the file formats provided by the
|
|
* library. This interface allows an application to provide their own
|
|
* archive file types.
|
|
*
|
|
* Conceptually, a PHYSFS_Archiver provides directory entries, while
|
|
* PHYSFS_Io provides data streams for those directory entries. The most
|
|
* obvious use of PHYSFS_Archiver is to provide support for an archive
|
|
* file type that isn't provided by PhysicsFS directly: perhaps some
|
|
* proprietary format that only your application needs to understand.
|
|
*
|
|
* Internally, all the built-in archive support uses this interface, so the
|
|
* best examples for building a PHYSFS_Archiver is the source code to
|
|
* PhysicsFS itself.
|
|
*
|
|
* An archiver is added to the system with PHYSFS_registerArchiver(), and then
|
|
* it will be available for use automatically with PHYSFS_mount(); if a
|
|
* given archive can be handled with your archiver, it will be given control
|
|
* as appropriate.
|
|
*
|
|
* These methods deal with dir handles. You have one instance of your
|
|
* archiver, and it generates a unique, opaque handle for each opened
|
|
* archive in its openArchive() method. Since the lifetime of an Archiver
|
|
* (not an archive) is generally the entire lifetime of the process, and it's
|
|
* assumed to be a singleton, we do not provide any instance data for the
|
|
* archiver itself; the app can just use some static variables if necessary.
|
|
*
|
|
* Symlinks should always be followed (except in stat()); PhysicsFS will
|
|
* use the stat() method to check for symlinks and make a judgement on
|
|
* whether to continue to call other methods based on that.
|
|
*
|
|
* Archivers, when necessary, should set the PhysicsFS error state with
|
|
* PHYSFS_setErrorCode() before returning. PhysicsFS will pass these errors
|
|
* back to the application unmolested in most cases.
|
|
*
|
|
* Thread safety: PHYSFS_Archiver implementations are not guaranteed to be
|
|
* thread safe in themselves. PhysicsFS provides thread safety when it calls
|
|
* into a given archiver inside the library, but it does not promise that
|
|
* using the same PHYSFS_File from two threads at once is thread-safe; as
|
|
* such, your PHYSFS_Archiver can assume that locking is handled for you
|
|
* so long as the PHYSFS_Io you return from PHYSFS_open* doesn't change any
|
|
* of your Archiver state, as the PHYSFS_Io won't be as aggressively
|
|
* protected.
|
|
*
|
|
* \sa PHYSFS_registerArchiver
|
|
* \sa PHYSFS_deregisterArchiver
|
|
* \sa PHYSFS_supportedArchiveTypes
|
|
*/
|
|
typedef struct PHYSFS_Archiver
|
|
{
|
|
/**
|
|
* \brief Binary compatibility information.
|
|
*
|
|
* This must be set to zero at this time. Future versions of this
|
|
* struct will increment this field, so we know what a given
|
|
* implementation supports. We'll presumably keep supporting older
|
|
* versions as we offer new features, though.
|
|
*/
|
|
PHYSFS_uint32 version;
|
|
|
|
/**
|
|
* \brief Basic info about this archiver.
|
|
*
|
|
* This is used to identify your archive, and is returned in
|
|
* PHYSFS_supportedArchiveTypes().
|
|
*/
|
|
PHYSFS_ArchiveInfo info;
|
|
|
|
/**
|
|
* \brief Open an archive provided by (io).
|
|
*
|
|
* This is where resources are allocated and data is parsed when mounting
|
|
* an archive.
|
|
* (name) is a filename associated with (io), but doesn't necessarily
|
|
* map to anything, let alone a real filename. This possibly-
|
|
* meaningless name is in platform-dependent notation.
|
|
* (forWrite) is non-zero if this is to be used for
|
|
* the write directory, and zero if this is to be used for an
|
|
* element of the search path.
|
|
* (claimed) should be set to 1 if this is definitely an archive your
|
|
* archiver implementation can handle, even if it fails. We use to
|
|
* decide if we should stop trying other archivers if you fail to open
|
|
* it. For example: the .zip archiver will set this to 1 for something
|
|
* that's got a .zip file signature, even if it failed because the file
|
|
* was also truncated. No sense in trying other archivers here, we
|
|
* already tried to handle it with the appropriate implementation!.
|
|
* Return NULL on failure and set (claimed) appropriately. If no archiver
|
|
* opened the archive or set (claimed), PHYSFS_mount() will report
|
|
* PHYSFS_ERR_UNSUPPORTED. Otherwise, it will report the error from the
|
|
* archiver that claimed the data through (claimed).
|
|
* Return non-NULL on success. The pointer returned will be
|
|
* passed as the "opaque" parameter for later calls.
|
|
*/
|
|
void *(*openArchive)(PHYSFS_Io *io, const char *name,
|
|
int forWrite, int *claimed);
|
|
|
|
/**
|
|
* \brief List all files in (dirname).
|
|
*
|
|
* Each file is passed to (cb), where a copy is made if appropriate, so
|
|
* you can dispose of it upon return from the callback. (dirname) is in
|
|
* platform-independent notation.
|
|
* If you have a failure, call PHYSFS_SetErrorCode() with whatever code
|
|
* seem appropriate and return PHYSFS_ENUM_ERROR.
|
|
* If the callback returns PHYSFS_ENUM_ERROR, please call
|
|
* PHYSFS_SetErrorCode(PHYSFS_ERR_APP_CALLBACK) and then return
|
|
* PHYSFS_ENUM_ERROR as well. Don't call the callback again in any
|
|
* circumstances.
|
|
* If the callback returns PHYSFS_ENUM_STOP, stop enumerating and return
|
|
* PHYSFS_ENUM_STOP as well. Don't call the callback again in any
|
|
* circumstances. Don't set an error code in this case.
|
|
* Callbacks are only supposed to return a value from
|
|
* PHYSFS_EnumerateCallbackResult. Any other result has undefined
|
|
* behavior.
|
|
* As long as the callback returned PHYSFS_ENUM_OK and you haven't
|
|
* experienced any errors of your own, keep enumerating until you're done
|
|
* and then return PHYSFS_ENUM_OK without setting an error code.
|
|
*
|
|
* \warning PHYSFS_enumerate returns zero or non-zero (success or failure),
|
|
* so be aware this function pointer returns different values!
|
|
*/
|
|
PHYSFS_EnumerateCallbackResult (*enumerate)(void *opaque,
|
|
const char *dirname, PHYSFS_EnumerateCallback cb,
|
|
const char *origdir, void *callbackdata);
|
|
|
|
/**
|
|
* \brief Open a file in this archive for reading.
|
|
*
|
|
* This filename, (fnm), is in platform-independent notation.
|
|
* Fail if the file does not exist.
|
|
* Returns NULL on failure, and calls PHYSFS_setErrorCode().
|
|
* Returns non-NULL on success. The pointer returned will be
|
|
* passed as the "opaque" parameter for later file calls.
|
|
*/
|
|
PHYSFS_Io *(*openRead)(void *opaque, const char *fnm);
|
|
|
|
/**
|
|
* \brief Open a file in this archive for writing.
|
|
*
|
|
* If the file does not exist, it should be created. If it exists,
|
|
* it should be truncated to zero bytes. The writing offset should
|
|
* be the start of the file.
|
|
* If the archive is read-only, this operation should fail.
|
|
* This filename is in platform-independent notation.
|
|
* Returns NULL on failure, and calls PHYSFS_setErrorCode().
|
|
* Returns non-NULL on success. The pointer returned will be
|
|
* passed as the "opaque" parameter for later file calls.
|
|
*/
|
|
PHYSFS_Io *(*openWrite)(void *opaque, const char *filename);
|
|
|
|
/**
|
|
* \brief Open a file in this archive for appending.
|
|
*
|
|
* If the file does not exist, it should be created. The writing
|
|
* offset should be the end of the file.
|
|
* If the archive is read-only, this operation should fail.
|
|
* This filename is in platform-independent notation.
|
|
* Returns NULL on failure, and calls PHYSFS_setErrorCode().
|
|
* Returns non-NULL on success. The pointer returned will be
|
|
* passed as the "opaque" parameter for later file calls.
|
|
*/
|
|
PHYSFS_Io *(*openAppend)(void *opaque, const char *filename);
|
|
|
|
/**
|
|
* \brief Delete a file or directory in the archive.
|
|
*
|
|
* This same call is used for both files and directories; there is not a
|
|
* separate rmdir() call. Directories are only meant to be removed if
|
|
* they are empty.
|
|
* If the archive is read-only, this operation should fail.
|
|
*
|
|
* Return non-zero on success, zero on failure.
|
|
* This filename is in platform-independent notation.
|
|
* On failure, call PHYSFS_setErrorCode().
|
|
*/
|
|
int (*remove)(void *opaque, const char *filename);
|
|
|
|
/**
|
|
* \brief Create a directory in the archive.
|
|
*
|
|
* If the application is trying to make multiple dirs, PhysicsFS
|
|
* will split them up into multiple calls before passing them to
|
|
* your driver.
|
|
* If the archive is read-only, this operation should fail.
|
|
* Return non-zero on success, zero on failure.
|
|
* This filename is in platform-independent notation.
|
|
* On failure, call PHYSFS_setErrorCode().
|
|
*/
|
|
int (*mkdir)(void *opaque, const char *filename);
|
|
|
|
/**
|
|
* \brief Obtain basic file metadata.
|
|
*
|
|
* On success, fill in all the fields in (stat), using
|
|
* reasonable defaults for fields that apply to your archive.
|
|
*
|
|
* Returns non-zero on success, zero on failure.
|
|
* This filename is in platform-independent notation.
|
|
* On failure, call PHYSFS_setErrorCode().
|
|
*/
|
|
int (*stat)(void *opaque, const char *fn, PHYSFS_Stat *stat);
|
|
|
|
/**
|
|
* \brief Destruct a previously-opened archive.
|
|
*
|
|
* Close this archive, and free any associated memory,
|
|
* including the original PHYSFS_Io and (opaque) itself, if
|
|
* applicable. Implementation can assume that it won't be called if
|
|
* there are still files open from this archive.
|
|
*/
|
|
void (*closeArchive)(void *opaque);
|
|
} PHYSFS_Archiver;
|
|
|
|
/**
|
|
* \fn int PHYSFS_registerArchiver(const PHYSFS_Archiver *archiver)
|
|
* \brief Add a new archiver to the system.
|
|
*
|
|
* \warning This is advanced, hardcore stuff. You don't need this unless you
|
|
* really know what you're doing. Most apps will not need this.
|
|
*
|
|
* If you want to provide your own archiver (for example, a custom archive
|
|
* file format, or some virtual thing you want to make look like a filesystem
|
|
* that you can access through the usual PhysicsFS APIs), this is where you
|
|
* start. Once an archiver is successfully registered, then you can use
|
|
* PHYSFS_mount() to add archives that your archiver supports to the
|
|
* search path, or perhaps use it as the write dir. Internally, PhysicsFS
|
|
* uses this function to register its own built-in archivers, like .zip
|
|
* support, etc.
|
|
*
|
|
* You may not have two archivers that handle the same extension. If you are
|
|
* going to have a clash, you can deregister the other archiver (including
|
|
* built-in ones) with PHYSFS_deregisterArchiver().
|
|
*
|
|
* The data in (archiver) is copied; you may free this pointer when this
|
|
* function returns.
|
|
*
|
|
* Once this function returns successfully, PhysicsFS will be able to support
|
|
* archives of this type until you deregister the archiver again.
|
|
*
|
|
* \param archiver The archiver to register.
|
|
* \return Zero on error, non-zero on success.
|
|
*
|
|
* \sa PHYSFS_Archiver
|
|
* \sa PHYSFS_deregisterArchiver
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_registerArchiver(const PHYSFS_Archiver *archiver);
|
|
|
|
/**
|
|
* \fn int PHYSFS_deregisterArchiver(const char *ext)
|
|
* \brief Remove an archiver from the system.
|
|
*
|
|
* If for some reason, you only need your previously-registered archiver to
|
|
* live for a portion of your app's lifetime, you can remove it from the
|
|
* system once you're done with it through this function.
|
|
*
|
|
* This fails if there are any archives still open that use this archiver.
|
|
*
|
|
* This function can also remove internally-supplied archivers, like .zip
|
|
* support or whatnot. This could be useful in some situations, like
|
|
* disabling support for them outright or overriding them with your own
|
|
* implementation. Once an internal archiver is disabled like this,
|
|
* PhysicsFS provides no mechanism to recover them, short of calling
|
|
* PHYSFS_deinit() and PHYSFS_init() again.
|
|
*
|
|
* PHYSFS_deinit() will automatically deregister all archivers, so you don't
|
|
* need to explicitly deregister yours if you otherwise shut down cleanly.
|
|
*
|
|
* \param ext Filename extension that the archiver handles.
|
|
* \return Zero on error, non-zero on success.
|
|
*
|
|
* \sa PHYSFS_Archiver
|
|
* \sa PHYSFS_registerArchiver
|
|
*/
|
|
PHYSFS_DECL int PHYSFS_deregisterArchiver(const char *ext);
|
|
|
|
|
|
/* Everything above this line is part of the PhysicsFS 2.1 API. */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* !defined _INCLUDE_PHYSFS_H_ */
|
|
|
|
/* end of physfs.h ... */
|
|
|