1 /* Filename-seen cache for the GNU debugger, GDB.
3 Copyright (C) 1986-2018 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "filename-seen-cache.h"
22 #include "filenames.h"
24 /* Initial size of the table. It automagically grows from here. */
25 #define INITIAL_FILENAME_SEEN_CACHE_SIZE 100
27 /* filename_seen_cache constructor. */
29 filename_seen_cache::filename_seen_cache ()
31 m_tab = htab_create_alloc (INITIAL_FILENAME_SEEN_CACHE_SIZE,
32 filename_hash, filename_eq,
33 NULL, xcalloc, xfree);
36 /* See filename-seen-cache.h. */
39 filename_seen_cache::clear ()
44 /* See filename-seen-cache.h. */
46 filename_seen_cache::~filename_seen_cache ()
51 /* See filename-seen-cache.h. */
54 filename_seen_cache::seen (const char *file)
59 slot = htab_find_slot (m_tab, file, INSERT);
63 /* No; add it to tab. */
64 *slot = (char *) file;