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forked from 0ad/0ad
0ad/source/lib/file/vfs/vfs_tree.h
janwas 8667ea74c8 fixes and improvements
- directoryPosix: replace most methods with boost filesystem (but not
all: the latter cannot efficiently enumerate files AND query their
size/mtime)
- AllocatorChecker: better name for member functions
- file: move the File class here
- trace: bugfix
- io: move UnalignedWriter to write_buffer.cpp (basically the same
thing)
- vfs: remove unnecessary "vfs" warts from variable names
- vfs_tree: VfsFile now stores single Name/Size/MTime fields instead of
the FileInfo record (less clunky)
- vfs_path: use boost filesystem's version of the basename/extension
functions
- lf_alloc: remove (no longer necessary, won't be finished - not worth
the trouble)
- path_util: remove path_foreach_component (replaced by better path
traversal logic) and PathPackage (obsoleted by fs::path)

! resource loading code now receives VfsPath as its filename. there is
also OsPath (native absolute path) and Path (relative to binaries/data)

- tex is now independent of file loading code; it just en/decodes
in-memory buffers
- wdll_ver: clean up, use smart pointer to simplify bailout code
- wsdl: remove nonexistent failure path from calc_gamma (cruised by here
because SDL_SetGamme is failing once after a cold boot at work)
- wsnd: simplify OpenAL DLL search, use boost::filesystem
- wutil: Wow64 redirection is now packaged in a (RAII) class

This was SVN commit r5525.
2007-12-22 18:15:52 +00:00

107 lines
2.4 KiB
C++

/**
* =========================================================================
* File : vfs_tree.h
* Project : 0 A.D.
* Description : 'tree' of VFS directories and files
* =========================================================================
*/
// license: GPL; see lib/license.txt
#ifndef INCLUDED_VFS_TREE
#define INCLUDED_VFS_TREE
#include "lib/file/file_system.h" // FileInfo
#include "lib/file/common/file_loader.h" // PIFileLoader
#include "lib/file/common/real_directory.h" // PRealDirectory
class VfsFile
{
public:
VfsFile(const std::string& name, off_t size, time_t mtime, unsigned priority, PIFileLoader provider);
const std::string& Name() const
{
return m_name;
}
off_t Size() const
{
return m_size;
}
time_t MTime() const
{
return m_mtime;
}
bool IsSupersededBy(const VfsFile& file) const;
void GenerateDescription(char* text, size_t maxChars) const;
LibError Load(shared_ptr<u8> buf) const;
private:
std::string m_name;
off_t m_size;
time_t m_mtime;
unsigned m_priority;
PIFileLoader m_loader;
};
class VfsDirectory
{
public:
VfsDirectory();
/**
* @return address of existing or newly inserted file; remains
* valid until ClearR is called (i.e. VFS is rebuilt).
**/
VfsFile* AddFile(const VfsFile& file);
/**
* @return address of existing or newly inserted subdirectory; remains
* valid until ClearR is called (i.e. VFS is rebuilt).
**/
VfsDirectory* AddSubdirectory(const std::string& name);
VfsFile* GetFile(const std::string& name);
VfsDirectory* GetSubdirectory(const std::string& name);
void GetEntries(FileInfos* files, DirectoryNames* subdirectories) const;
void DisplayR(unsigned depth) const;
void ClearR();
void Attach(PRealDirectory realDirectory);
PRealDirectory AssociatedDirectory() const
{
return m_realDirectory;
}
/**
* @return whether this directory should be populated from its
* AssociatedDirectory(). note that calling this is a promise to
* do so if true is returned -- the flag is immediately reset.
**/
bool ShouldPopulate();
private:
typedef std::map<std::string, VfsFile> VfsFiles;
VfsFiles m_files;
typedef std::map<std::string, VfsDirectory> VfsSubdirectories;
VfsSubdirectories m_subdirectories;
PRealDirectory m_realDirectory;
volatile uintptr_t m_shouldPopulate; // (cpu_CAS can't be used on bool)
};
#endif // #ifndef INCLUDED_VFS_TREE