contrib/cvs-1.12/lib/cycle-check.h

   1 /* help detect directory cycles efficiently
   2
   3    Copyright (C) 2003, 2004 Free Software Foundation, Inc.
   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, or (at your option)
   8    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; see the file COPYING.
  17    If not, write to the Free Software Foundation,
  18    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  19
  20 /* Written by Jim Meyering */
  21
  22 #ifndef CYCLE_CHECK_H
  23 # define CYCLE_CHECK_H 1
  24
  25 # if HAVE_INTTYPES_H
  26 #  include <inttypes.h>
  27 # endif
  28 # if HAVE_STDINT_H
  29 #  include <stdint.h>
  30 # endif
  31 # include <stdbool.h>
  32 # include "dev-ino.h"
  33
  34 struct cycle_check_state
  35 {
  36   struct dev_ino dev_ino;
  37   uintmax_t chdir_counter;
  38   int magic;
  39 };
  40
  41 void cycle_check_init (struct cycle_check_state *state);
  42 bool cycle_check (struct cycle_check_state *state, struct stat const *sb);
  43
  44 #endif