67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/* Filename-seen cache for the GNU debugger, GDB.
|
|
|
|
Copyright (C) 1986-2020 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
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/>. */
|
|
|
|
#include "defs.h"
|
|
#include "filename-seen-cache.h"
|
|
#include "filenames.h"
|
|
|
|
/* Initial size of the table. It automagically grows from here. */
|
|
#define INITIAL_FILENAME_SEEN_CACHE_SIZE 100
|
|
|
|
/* filename_seen_cache constructor. */
|
|
|
|
filename_seen_cache::filename_seen_cache ()
|
|
{
|
|
m_tab = htab_create_alloc (INITIAL_FILENAME_SEEN_CACHE_SIZE,
|
|
filename_hash, filename_eq,
|
|
NULL, xcalloc, xfree);
|
|
}
|
|
|
|
/* See filename-seen-cache.h. */
|
|
|
|
void
|
|
filename_seen_cache::clear ()
|
|
{
|
|
htab_empty (m_tab);
|
|
}
|
|
|
|
/* See filename-seen-cache.h. */
|
|
|
|
filename_seen_cache::~filename_seen_cache ()
|
|
{
|
|
htab_delete (m_tab);
|
|
}
|
|
|
|
/* See filename-seen-cache.h. */
|
|
|
|
bool
|
|
filename_seen_cache::seen (const char *file)
|
|
{
|
|
void **slot;
|
|
|
|
/* Is FILE in tab? */
|
|
slot = htab_find_slot (m_tab, file, INSERT);
|
|
if (*slot != NULL)
|
|
return true;
|
|
|
|
/* No; add it to tab. */
|
|
*slot = (char *) file;
|
|
return false;
|
|
}
|