// Copyright (C) 1999,2000 Bruce Guenter <bruceg@em.ca>

//

// This program is free software; you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation; either version 2 of the License, or

// (at your option) any later version.

//

// This program is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with this program; if not, write to the Free Software

// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#ifndef FDBUF__FDIBUF__H__

#define FDBUF__FDIBUF__H__

class fdibuf : protected fdbuf

{

public:

  fdibuf(const char* filename, unsigned bufsz = FDBUF_SIZE);

  fdibuf(int fdesc, bool dc = false, unsigned bufsz = FDBUF_SIZE);

  virtual ~fdibuf();

  bool close() { lock(); bool r = fdbuf::close(); unlock(); return r; }

  bool eof() const;

  bool operator!() const ;

  operator bool() const { return !operator!(); }

  virtual bool get(char& ch);

  virtual bool getline(mystring& out, char terminator = '\n');

  virtual bool getnetstring(mystring& out);

  virtual bool read(char*, unsigned);

  virtual bool read_large(char*, unsigned);

  bool read(unsigned char* b, unsigned l) { return read((char*)b, l); }

  bool read(signed char* b, unsigned l) { return read((char*)b, l); }

  unsigned last_count() { return count; }

  bool seek(unsigned o);

  bool seekfwd(unsigned o);

  bool rewind() { return seek(0); }

  unsigned tell() const { return offset-buflength+bufstart; }

  int error_number() const { return errnum; }

protected:

  unsigned count;		// Number of bytes read by last operation

  bool refill();

};

extern fdibuf fin;

#endif // FDBUF__FDIBUF__H__