GDB (xrefs)
Loading...
Searching...
No Matches
filename-seen-cache.c
Go to the documentation of this file.
1/* Filename-seen cache for the GNU debugger, GDB.
2
3 Copyright (C) 1986-2023 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
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.
11
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.
16
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/>. */
19
20#include "defs.h"
21#include "filename-seen-cache.h"
22#include "filenames.h"
23
24 /* Initial size of the table. It automagically grows from here. */
25#define INITIAL_FILENAME_SEEN_CACHE_SIZE 100
26
27/* filename_seen_cache constructor. */
28
30 : m_tab (htab_create_alloc (INITIAL_FILENAME_SEEN_CACHE_SIZE,
31 filename_hash, filename_eq,
32 NULL, xcalloc, xfree))
33{
34}
35
36/* See filename-seen-cache.h. */
37
38void
40{
41 htab_empty (m_tab.get ());
42}
43
44/* See filename-seen-cache.h. */
45
46bool
47filename_seen_cache::seen (const char *file)
48{
49 void **slot;
50
51 /* Is FILE in tab? */
52 slot = htab_find_slot (m_tab.get (), file, INSERT);
53 if (*slot != NULL)
54 return true;
55
56 /* No; add it to tab. */
57 *slot = (char *) file;
58 return false;
59}
void xfree(void *)
void * xcalloc(size_t number, size_t size)
Definition alloc.c:85
bool seen(const char *file)
#define INITIAL_FILENAME_SEEN_CACHE_SIZE