Encapsulating the DOS IOCTL Interface

Listing 7 fhandle.h — Adds file-specific capability to IoctlHandle

#ifndef _FHANDLE_H
#define _FHANDLE_H

#include "iohandle.h"

class fileHandle : public IoctlHandle {
protected:
   fileHandle( const char *path )
             : IoctlHandle( path ) { }
   fileHandle( int handle )
             : IoctlHandle( handle ) { }
public:
   static fileHandle *Init(const char *path );
   static fileHandle *Init(int handle );
   ~fileHandle() { }

   //Return 0-based drive# for a file handle....
   int driveNumber(void )
      {   return (drive_number & _info); }

   int fileEof(void)    //returns !0 if at eof
      {   return !inputStatus(); }
};  // .... end class fileHandle

#endif // _FHANDLE_H

// End of File