You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
1.9 KiB
56 lines
1.9 KiB
#ifndef MTOOLS_DIRCACHE_H
|
|
#define MTOOLS_DIRCACHE_H
|
|
|
|
/* Copyright 1997,1999,2001-2003,2008,2009 Alain Knaff.
|
|
* This file is part of mtools.
|
|
*
|
|
* Mtools 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.
|
|
*
|
|
* Mtools 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 Mtools. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
typedef enum {
|
|
DCET_FREE,
|
|
DCET_USED,
|
|
DCET_END
|
|
} dirCacheEntryType_t;
|
|
|
|
#define DC_BITMAP_SIZE 128
|
|
|
|
typedef struct dirCacheEntry_t dirCacheEntry_t;
|
|
|
|
typedef struct dirCache_t {
|
|
struct dirCacheEntry_t **entries;
|
|
unsigned int nr_entries;
|
|
unsigned int nrHashed;
|
|
unsigned int bm0[DC_BITMAP_SIZE];
|
|
unsigned int bm1[DC_BITMAP_SIZE];
|
|
unsigned int bm2[DC_BITMAP_SIZE];
|
|
} dirCache_t;
|
|
|
|
int isHashed(dirCache_t *cache, wchar_t *name);
|
|
int growDirCache(dirCache_t *cache, unsigned int slot);
|
|
dirCache_t *allocDirCache(Stream_t *Stream, unsigned int slot);
|
|
dirCacheEntry_t *addUsedEntry(dirCache_t *Stream,
|
|
unsigned int begin,
|
|
unsigned int end,
|
|
wchar_t *longName, wchar_t *shortName,
|
|
struct directory *dir);
|
|
void freeDirCache(Stream_t *Stream);
|
|
dirCacheEntry_t *addFreeEntry(dirCache_t *Stream,
|
|
unsigned int begin, unsigned int end);
|
|
dirCacheEntry_t *addFreeEndEntry(dirCache_t *Stream,
|
|
unsigned int begin, unsigned int end,
|
|
int isAtEnd);
|
|
dirCacheEntry_t *addEndEntry(dirCache_t *Stream, unsigned int pos);
|
|
dirCacheEntry_t *lookupInDircache(dirCache_t *Stream, unsigned int pos);
|
|
#endif
|