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#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;
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, int slot);
dirCache_t *allocDirCache(Stream_t *Stream, int slot);
dirCacheEntry_t *addUsedEntry(dirCache_t *Stream, int begin, 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, int pos);
dirCacheEntry_t *lookupInDircache(dirCache_t *Stream, int pos);
#endif
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