Mercurial > gnulib
view lib/file-set.c @ 36940:c741bc27922a
maint: update all copyright year number ranges
Run "make update-copyright". Compare to commit 1602f0a from last year.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Tue, 01 Jan 2013 00:50:58 +0000 |
parents | 807a2defea28 |
children | 344018b6e5d7 |
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/* Specialized functions to manipulate a set of files. Copyright (C) 2007, 2009-2013 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 the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* written by Jim Meyering */ #include <config.h> #include "file-set.h" #include "hash-triple.h" #include "xalloc.h" /* Record file, FILE, and dev/ino from *STATS, in the hash table, HT. If HT is NULL, return immediately. If memory allocation fails, exit immediately. */ void record_file (Hash_table *ht, char const *file, struct stat const *stats) { struct F_triple *ent; if (ht == NULL) return; ent = xmalloc (sizeof *ent); ent->name = xstrdup (file); ent->st_ino = stats->st_ino; ent->st_dev = stats->st_dev; { struct F_triple *ent_from_table = hash_insert (ht, ent); if (ent_from_table == NULL) { /* Insertion failed due to lack of memory. */ xalloc_die (); } if (ent_from_table != ent) { /* There was alread a matching entry in the table, so ENT was not inserted. Free it. */ triple_free (ent); } } } /* Return true if there is an entry in hash table, HT, for the file described by FILE and STATS. */ bool seen_file (Hash_table const *ht, char const *file, struct stat const *stats) { struct F_triple new_ent; if (ht == NULL) return false; new_ent.name = (char *) file; new_ent.st_ino = stats->st_ino; new_ent.st_dev = stats->st_dev; return !!hash_lookup (ht, &new_ent); }