Martin Natano
97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
#ifndef RAGE_FILE_DRIVER_DIRECT_H
|
|
#define RAGE_FILE_DRIVER_DIRECT_H
|
|
|
|
#include "RageFile.h"
|
|
#include "RageFileDriver.h"
|
|
|
|
#include <cstddef>
|
|
|
|
/** @brief File driver for accessing a regular filesystem. */
|
|
class RageFileDriverDirect: public RageFileDriver
|
|
{
|
|
public:
|
|
RageFileDriverDirect( const RString &sRoot );
|
|
|
|
RageFileBasic *Open( const RString &sPath, int iMode, int &iError );
|
|
bool Move( const RString &sOldPath, const RString &sNewPath );
|
|
bool Remove( const RString &sPath );
|
|
bool Remount( const RString &sPath );
|
|
|
|
private:
|
|
RString m_sRoot;
|
|
};
|
|
|
|
class RageFileDriverDirectReadOnly: public RageFileDriverDirect
|
|
{
|
|
public:
|
|
RageFileDriverDirectReadOnly( const RString &sRoot );
|
|
RageFileBasic *Open( const RString &sPath, int iMode, int &iError );
|
|
bool Move( const RString &sOldPath, const RString &sNewPath );
|
|
bool Remove( const RString &sPath );
|
|
};
|
|
|
|
/** @brief This driver handles direct file access. */
|
|
|
|
class RageFileObjDirect: public RageFileObj
|
|
{
|
|
public:
|
|
RageFileObjDirect( const RString &sPath, int iFD, int iMode );
|
|
virtual ~RageFileObjDirect();
|
|
virtual int ReadInternal( void *pBuffer, std::size_t iBytes );
|
|
virtual int WriteInternal( const void *pBuffer, std::size_t iBytes );
|
|
virtual int FlushInternal();
|
|
virtual int SeekInternal( int offset );
|
|
virtual RageFileObjDirect *Copy() const;
|
|
virtual RString GetDisplayPath() const { return m_sPath; }
|
|
virtual int GetFileSize() const;
|
|
virtual int GetFD();
|
|
|
|
private:
|
|
bool FinalFlush();
|
|
|
|
int m_iFD;
|
|
int m_iMode;
|
|
RString m_sPath; /* for Copy */
|
|
|
|
/*
|
|
* When not streaming to disk, we write to a temporary file, and rename to the
|
|
* real file on completion. If any write, this is aborted. When streaming to
|
|
* disk, allow recovering from errors.
|
|
*/
|
|
bool m_bWriteFailed;
|
|
bool WriteFailed() const { return !(m_iMode & RageFile::STREAMED) && m_bWriteFailed; }
|
|
|
|
// unused
|
|
RageFileObjDirect& operator=(const RageFileObjDirect& rhs);
|
|
RageFileObjDirect(const RageFileObjDirect& rhs);
|
|
};
|
|
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Copyright (c) 2003-2004 Glenn Maynard
|
|
* All rights reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, and/or sell copies of the Software, and to permit persons to
|
|
* whom the Software is furnished to do so, provided that the above
|
|
* copyright notice(s) and this permission notice appear in all copies of
|
|
* the Software and that both the above copyright notice(s) and this
|
|
* permission notice appear in supporting documentation.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
|
|
* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
|
|
* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
|
|
* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
|
|
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
|
|
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|