/* help detect directory cycles efficiently
- Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
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
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Jim Meyering */
#ifndef CYCLE_CHECK_H
# define CYCLE_CHECK_H 1
-# if HAVE_INTTYPES_H
-# include <inttypes.h>
-# endif
-# if HAVE_STDINT_H
-# include <stdint.h>
-# endif
+# include <stdint.h>
# include <stdbool.h>
# include "dev-ino.h"
+# include "same-inode.h"
struct cycle_check_state
{
void cycle_check_init (struct cycle_check_state *state);
bool cycle_check (struct cycle_check_state *state, struct stat const *sb);
+# define CYCLE_CHECK_REFLECT_CHDIR_UP(State, SB_dir, SB_subdir) \
+ do \
+ { \
+ /* You must call cycle_check at least once before using this macro. */ \
+ if ((State)->chdir_counter == 0) \
+ abort (); \
+ if (SAME_INODE ((State)->dev_ino, SB_subdir)) \
+ { \
+ (State)->dev_ino.st_dev = (SB_dir).st_dev; \
+ (State)->dev_ino.st_ino = (SB_dir).st_ino; \
+ } \
+ } \
+ while (0)
+
#endif