forked from mirrors/0ad
janwas
75ab906315
archive: ArchiveEntry now a mememto and not exposed directly typedefs for boost::shared_ptr fixed up dir_util to new interface add "FileProvider" that does Load/Store and indicates Precedence vfs: structure has changed. one RealDirectory per OS dir; vfs_tree stores it; populate uses it to Add() stuff to vfs_tree; lookup does path traversal and calls populate This was SVN commit r5499.
92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
/**
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* =========================================================================
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* File : filesystem.h
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* Project : 0 A.D.
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* Description :
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* =========================================================================
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*/
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// license: GPL; see lib/license.txt
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#ifndef INCLUDED_FILESYSTEM
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#define INCLUDED_FILESYSTEM
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/**
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* information describing file system entries (i.e. files or directories)
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*
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* note: don't be extravagant with memory - dir_ForEachSortedEntry allocates
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* one instance of this per directory entry.
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**/
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class FileInfo
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{
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public:
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FileInfo()
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{
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}
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FileInfo(const char* name, off_t size, time_t mtime)
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: m_name(name), m_size(size), m_mtime(mtime)
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{
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}
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const char* Name() const
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{
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return m_name;
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}
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off_t Size() const
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{
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return m_size;
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}
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time_t MTime() const
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{
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return m_mtime;
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}
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private:
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/**
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* name of the entry; does not include a path.
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* the underlying storage is guaranteed to remain valid and must not
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* be freed/modified.
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**/
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const char* m_name;
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off_t m_size;
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time_t m_mtime;
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};
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typedef std::vector<FileInfo> FileInfos;
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typedef std::vector<const char*> Directories;
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//
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struct IFileProvider
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{
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virtual ~IFileProvider();
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virtual unsigned Precedence() const = 0;
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virtual char LocationCode() const = 0;
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virtual LibError Load(const char* name, const void* location, u8* fileContents, size_t size) const = 0;
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virtual LibError Store(const char* name, const void* location, const u8* fileContents, size_t size) const = 0;
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};
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typedef boost::shared_ptr<IFileProvider> PIFileProvider;
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struct IFilesystem
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{
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virtual ~IFilesystem();
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virtual LibError GetFileInfo(const char* pathname, FileInfo& fileInfo) const = 0;
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// note: this interface avoids having to lock a directory while an
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// iterator is extant.
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// (don't split this into 2 functions because POSIX can't implement
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// that efficiently)
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virtual LibError GetDirectoryEntries(const char* path, FileInfos* files, Directories* subdirectories) const = 0;
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};
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#endif // #ifndef INCLUDED_FILESYSTEM
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