77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
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#pragma once
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#include "types.h"
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#include "ustring.h"
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class Dentry;
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class VfsMount;
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class Path;
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class FileSystemInfo;
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/**
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* @enum Type of the last component on LOOKUP_PARENT
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*/
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enum
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{
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/**
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* The last component is a regular filename
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*/
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LAST_NORM,
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/**
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* The last component is "."
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*/
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LAST_DOT,
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/**
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* The last component is ".."
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*/
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LAST_DOTDOT,
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};
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/**
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* @enum Error Codes for the path walk
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*/
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enum
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{
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PW_SUCCESS = 0,
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/**
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* The path was not found
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*/
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PW_ENOTFOUND,
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/**
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* The path to look up is invalid
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*/
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PW_EINVALID
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};
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class PathWalker
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{
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public:
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/**
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* Perform a file system lookup
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* @param pathname File pathname to be resolved
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* @param pwd Start directory of the file system walk
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* @param root Root directory for the file system walk
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* @param out Output parameter: Found file path
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* @param parent Optional output parameter: Parent directory
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* @return Returns 0 on success, != 0 on error
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*/
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static int32 pathWalk(const char* pathname, const Path& pwd, const Path& root, Path& out, Path* parent = nullptr);
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static int32 pathWalk(const char* pathname, FileSystemInfo* fs_info, Path& out, Path* parent_dir = nullptr);
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static ustl::string pathPrefix(const ustl::string& path);
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static ustl::string lastPathSegment(const ustl::string& path, bool ignore_separator_at_end = false);
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private:
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static size_t getNextPartLen(const char* path);
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static int pathSegmentType(const char* segment);
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PathWalker();
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~PathWalker();
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};
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