lib/hash-triple.h

   1 /* Hash functions for file-related (name, device, inode) triples.
   2    Copyright (C) 2007-2024 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Jim Meyering, 2007.  */
  18
  19 #ifndef HASH_TRIPLE_H
  20 #define HASH_TRIPLE_H
  21
  22 /* This file uses _GL_ATTRIBUTE_PURE.  */
  23 #if !_GL_CONFIG_H_INCLUDED
  24  #error "Please include config.h first."
  25 #endif
  26
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29
  30 /* Describe a just-created or just-renamed destination file.  */
  31 struct F_triple
  32 {
  33   char *name;
  34   ino_t st_ino;
  35   dev_t st_dev;
  36 };
  37
  38 /* Defined in module 'hash-triple-simple'.  */
  39
  40 extern size_t triple_hash (void const *x, size_t table_size) _GL_ATTRIBUTE_PURE;
  41 extern bool triple_compare_ino_str (void const *x, void const *y)
  42   _GL_ATTRIBUTE_PURE;
  43 extern void triple_free (void *x);
  44
  45 /* Defined in module 'hash-triple'.  */
  46 extern size_t triple_hash_no_name (void const *x, size_t table_size)
  47   _GL_ATTRIBUTE_PURE;
  48 extern bool triple_compare (void const *x, void const *y);
  49
  50 #endif