fs/os.h

   1 /*
   2  * libhfs - library for reading and writing Macintosh HFS volumes
   3  * Copyright (C) 1996-1998, 2003 Robert Leslie
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  18  * MA 02110-1301, USA.
  19  *
  20  * $Id: os.h,v 1.1.1.1 2000/07/25 10:33:40 kkaempf Exp $
  21  */
  22
  23 #ifndef _H_OS
  24 #define _H_OS
  25
  26 /*
  27  * NAME:        os->same()
  28  * DESCRIPTION: return 1 iff path is same as the open descriptor
  29  */
  30 int os_same( int fd1, int fd2 );
  31
  32 /*
  33  * NAME:        os->seek()
  34  * DESCRIPTION: set a descriptor's seek pointer (offset in blocks)
  35  */
  36 unsigned long os_seek( int fd, unsigned long offset, int blksize_bits);
  37
  38 /*
  39  * NAME:        os->read()
  40  * DESCRIPTION: read blocks from an open descriptor
  41  */
  42 unsigned long os_read( int fd, void *buf, unsigned long len, int blksize_bits);
  43
  44 /*
  45  * NAME:        os->write()
  46  * DESCRIPTION: write blocks to an open descriptor
  47  */
  48 unsigned long os_write( int fd, const void *buf, unsigned long len, int blksize_bits);
  49
  50 /*
  51  * NAME:        os->seek_offset()
  52  * DESCRIPTION: set a descriptor's seek pointer (offset in bytes)
  53  */
  54 void os_seek_offset( int fd, long long offset );
  55
  56
  57 #endif   /* _H_OS */