Glenn Maynard
69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
#ifndef RAGE_FILE_DRIVER_H
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#define RAGE_FILE_DRIVER_H
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#include "RageFile.h"
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#include "RageFileManager.h"
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class RageFileObj;
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class FilenameDB;
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class RageFileDriver
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{
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public:
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RageFileDriver( FilenameDB *db ) { FDB = db; }
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virtual ~RageFileDriver();
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virtual RageFileObj *Open( const CString &path, int mode, RageFile &p, int &err ) = 0;
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virtual void GetDirListing( const CString &sPath, CStringArray &AddTo, bool bOnlyDirs, bool bReturnPathToo );
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virtual RageFileManager::FileType GetFileType( const CString &sPath );
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virtual int GetFileSizeInBytes( const CString &sFilePath );
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virtual int GetFileHash( const CString &sPath );
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virtual int GetPathValue( const CString &path );
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virtual bool Ready() { return true; } /* see RageFileManager::MountpointIsReady */
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virtual void FlushDirCache( const CString &sPath );
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virtual bool Remove( const CString &sPath ) { return false; }
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protected:
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FilenameDB *FDB;
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};
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class RageFileObj
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{
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protected:
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RageFile &parent;
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void SetError( const CString &err );
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public:
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RageFileObj( RageFile &p ): parent(p) { }
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virtual ~RageFileObj() { }
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void ClearError();
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// virtual CString RealPath() const { return parent->GetPath(); }
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virtual int Seek( int offset );
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virtual int SeekCur( int offset );
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virtual int GetFileSize();
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virtual CString GetDisplayPath() const { return parent.GetRealPath(); }
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/* Raw I/O: */
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virtual int Read(void *buffer, size_t bytes) = 0;
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virtual int Write(const void *buffer, size_t bytes) = 0;
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virtual int Flush() { return 0; }
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virtual void Rewind() = 0;
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virtual RageFileObj *Copy( RageFile &p ) const = 0;
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};
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/* This is used to register the driver, so RageFileManager can see it. */
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struct FileDriverEntry
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{
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FileDriverEntry( CString Type );
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virtual ~FileDriverEntry();
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virtual RageFileDriver *Create( CString Root ) const = 0;
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CString m_Type;
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const FileDriverEntry *m_Link;
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};
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RageFileDriver *MakeFileDriver( CString Type, CString Root );
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#endif
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