memfile.h Source File

00001 /*
00002     Copyright (C) 2000 by Eric Sunshine <sunshine@sunshineco.com>
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_MEMFILE_H__
00020 #define __CS_MEMFILE_H__
00021 
00022 #include "iutil/vfs.h"
00023 
00028 class csMemFile : public iFile
00029 {
00030 public:
00032   enum Disposition
00033   {
00035     DISPOSITION_DELETE,
00037     DISPOSITION_FREE,
00039     DISPOSITION_IGNORE
00040   };
00041 
00042 public:
00044   csMemFile();
00046   csMemFile(const char*, size_t);
00048   csMemFile(char*, size_t, Disposition = DISPOSITION_DELETE);
00050   virtual ~csMemFile();
00051 
00053   virtual const char* GetName();
00055   virtual size_t GetSize();
00057   virtual int GetStatus();
00058 
00060   virtual size_t Read(char* Data, size_t DataSize);
00062   virtual size_t Write(const char* Data, size_t DataSize);
00064   virtual bool AtEOF();
00066   virtual size_t GetPos();
00068   virtual void SetPos(size_t);
00069 
00074   virtual iDataBuffer* GetAllData();
00079   virtual const char* GetData() const;
00080 
00081   SCF_DECLARE_IBASE;
00082 
00083 protected:
00084   Disposition disposition;
00085   char* buffer;
00086   size_t capacity;
00087   size_t size;
00088   size_t cursor;
00089   virtual void FreeBuffer();
00090 };
00091 
00092 #endif // __CS_MEMFILE_H__