#ifndef BTREE_VFS_H 
#define BTREE_VFS_H
class bTreeVFS {
 public:
                bTreeVFS(void);
  virtual bool  fClose(void) = 0;
  virtual bool  fCreate(char * filename) = 0;
  virtual bool  fExist(char * filename) = 0;
  virtual bool  fOpen(char * filename) = 0;
  virtual bool  fRead(char * filename) = 0;
  virtual bool  fSeek(uInt32 offset) = 0;
  virtual bool  fWrite(void * buf, uInt32 size) = 0;
  virtual      ~bTreeVFS(void) = 0;  
};  // bTreeVFS
#endif