forked from 0ad/0ad
janwas
3c411dd174
(mostly passing arguments by const reference and checking LibError return codes) This was SVN commit r6214.
68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/**
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* =========================================================================
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* File : file_system_util.h
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* Project : 0 A.D.
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* Description : helper functions for directory access
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* =========================================================================
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*/
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// license: GPL; see lib/license.txt
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#ifndef INCLUDED_FILE_SYSTEM_UTIL
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#define INCLUDED_FILE_SYSTEM_UTIL
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#include "lib/file/vfs/vfs.h"
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extern void fs_SortFiles(FileInfos& files);
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extern void fs_SortDirectories(DirectoryNames& directories);
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extern LibError fs_GetPathnames(const PIVFS& fs, const VfsPath& path, const char* filter, VfsPaths& pathnames);
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/**
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* called for files in a directory.
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*
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* @param pathname full pathname (since FileInfo only gives the name).
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* @param fileInfo file information
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* @param cbData user-specified context
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* @return INFO::CB_CONTINUE on success; any other value will immediately
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* be returned to the caller (no more calls will be forthcoming).
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*
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* CAVEAT: pathname and fileInfo are only valid until the function
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* returns!
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**/
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typedef LibError (*FileCallback)(const VfsPath& pathname, const FileInfo& fileInfo, const uintptr_t cbData);
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enum DirFlags
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{
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DIR_RECURSIVE = 1
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};
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/**
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* call back for each file in a directory tree
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*
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* @param cb see DirCallback
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* @param pattern that file names must match. '*' and '&' wildcards
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* are allowed. 0 matches everything.
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* @param flags see DirFlags
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* @param LibError
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**/
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extern LibError fs_ForEachFile(const PIVFS& fs, const VfsPath& path, FileCallback cb, uintptr_t cbData, const char* pattern = 0, int flags = 0);
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/**
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* determine the next available pathname with a given format.
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* this is useful when creating new files without overwriting the previous
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* ones (screenshots are a good example).
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*
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* @param pathnameFormat format string for the pathname; must contain one
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* format specifier for a size_t.
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* example: "screenshots/screenshot%04d.png"
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* @param nextNumber in: the first number to try; out: the next number.
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* if 0, numbers corresponding to existing files are skipped.
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* @param nextPathname receives the output.
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**/
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extern void fs_NextNumberedFilename(const PIVFS& fs, const VfsPath& pathnameFormat, size_t& nextNumber, VfsPath& nextPathname);
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#endif // #ifndef INCLUDED_FILE_SYSTEM_UTIL
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