diff options
Diffstat (limited to 'dirCache.h')
| -rw-r--r-- | dirCache.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/dirCache.h b/dirCache.h new file mode 100644 index 0000000..bd9637b --- /dev/null +++ b/dirCache.h @@ -0,0 +1,53 @@ +#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 |