diff options
| author | Alistair Delva <adelva@google.com> | 2021-02-24 11:27:23 -0800 |
|---|---|---|
| committer | Alistair Delva <adelva@google.com> | 2021-02-24 11:28:00 -0800 |
| commit | beaee834aed2d56a37ad3df7cf381378067b1c65 (patch) | |
| tree | 86ca12f6da3a8c5c8a7116dbe02add01768df7c8 /dirCache.h | |
| parent | 0ffa2249f0feb3239cb062228a13f433ad9474e9 (diff) | |
| download | mtools-beaee834aed2d56a37ad3df7cf381378067b1c65.tar.gz | |
Import mtools 4.0.26
Bug: 175204891
Bug: 180112530
Change-Id: I8a656b5da155f9857afa4f48c6b40fe72f68c052
Diffstat (limited to 'dirCache.h')
| -rw-r--r-- | dirCache.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/dirCache.h b/dirCache.h new file mode 100644 index 0000000..04f9f3e --- /dev/null +++ b/dirCache.h @@ -0,0 +1,55 @@ +#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 |