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

     2 //

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

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

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

     6 // (at your option) any later version.

     7 //

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

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

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

    11 // GNU General Public License for more details.

    12 //

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

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

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

    16 

    17 #ifndef FDBUF__FDIBUF__H__

    18 #define FDBUF__FDIBUF__H__

    19 

    20 class fdibuf : protected fdbuf

    21 {

    22 public:

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

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

    25   virtual ~fdibuf();

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

    27   bool eof() const;

    28   bool operator!() const ;

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

    30   virtual bool get(char& ch);

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

    32   virtual bool getnetstring(mystring& out);

    33   virtual bool read(char*, unsigned);

    34   virtual bool read_large(char*, unsigned);

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

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

    37   unsigned last_count() { return count; }

    38   bool seek(unsigned o);

    39   bool seekfwd(unsigned o);

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

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

    42   int error_number() const { return errnum; }

    43 protected:

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

    45   bool refill();

    46 };

    47 

    48 extern fdibuf fin;

    49 

    50 #endif // FDBUF__FDIBUF__H__