doc/technical/file-management.txt

   1 Overview of the file management subsystem
   2 Adrian Chadd <adrian@creative.net.au>
   3
   4 $Id: file-management.txt 6 2005-09-10 01:02:21Z nenolod $
   5
   6
   7 File operations
   8 ---------------
   9
  10 The file operations are also wrapped through file_open() and file_close()
  11 which handle calling fd_open() / fd_close() and tracking the filedescriptors
  12 correctly. fbopen() / fbclose() use file_open() / file_close() too.
  13
  14 fileio.c defines the functions:
  15
  16 int
  17 file_open(const char *filename, int mode, int fmode)
  18
  19 A wrapper around open(filename, flags, mode). Read the open manpage for
  20 information. file_open() enforces filedescriptor limits and tags the FD
  21 through fd_open().
  22
  23 void
  24 file_close(int fd)
  25
  26 A wrapper around close() for files. close() handles fd_close()ing the fd.
  27
  28
  29 FBFILE *
  30 fbopen(const char *filename, const char *mode)
  31
  32 void
  33 fbclose(FBFILE *fb)
  34
  35 These are the 'buffered disk IO' routines. You can read the code yourself.
  36 Note that these routines use file_open() and file_close().
  37