1 /* Filename-seen cache for the GNU debugger, GDB.
3 Copyright (C) 1986-2019 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/>. */
22 /* Local non-gdb includes. */
23 #include "filename-seen-cache.h"
24 #include "filenames.h"
26 /* Initial size of the table. It automagically grows from here. */
27 #define INITIAL_FILENAME_SEEN_CACHE_SIZE 100
29 /* filename_seen_cache constructor. */
31 filename_seen_cache::filename_seen_cache ()
33 m_tab = htab_create_alloc (INITIAL_FILENAME_SEEN_CACHE_SIZE,
34 filename_hash, filename_eq,
35 NULL, xcalloc, xfree);
38 /* See filename-seen-cache.h. */
41 filename_seen_cache::clear ()
46 /* See filename-seen-cache.h. */
48 filename_seen_cache::~filename_seen_cache ()
53 /* See filename-seen-cache.h. */
56 filename_seen_cache::seen (const char *file)
61 slot = htab_find_slot (m_tab, file, INSERT);
65 /* No; add it to tab. */
66 *slot = (char *) file;