00001 #ifndef MTOOLS_DIRCACHE_H
00002 #define MTOOLS_DIRCACHE_H
00003
00004 typedef enum {
00005 DCET_FREE,
00006 DCET_USED,
00007 DCET_END
00008 } dirCacheEntryType_t;
00009
00010 #define DC_BITMAP_SIZE 128
00011
00012 typedef struct dirCacheEntry_t {
00013 dirCacheEntryType_t type;
00014 int beginSlot;
00015 int endSlot;
00016 char *shortName;
00017 char *longName;
00018 struct directory dir;
00019 } dirCacheEntry_t;
00020
00021 typedef struct dirCache_t {
00022 struct dirCacheEntry_t **entries;
00023 int nr_entries;
00024 unsigned int nrHashed;
00025 unsigned int bm0[DC_BITMAP_SIZE];
00026 unsigned int bm1[DC_BITMAP_SIZE];
00027 unsigned int bm2[DC_BITMAP_SIZE];
00028 } dirCache_t;
00029
00030 int isHashed(dirCache_t *cache, char *name);
00031 int growDirCache(dirCache_t *cache, int slot);
00032 dirCache_t *allocDirCache(Stream_t *Stream, int slot);
00033 dirCacheEntry_t *addUsedEntry(dirCache_t *Stream, int begin, int end,
00034 char *longName, char *shortName,
00035 struct directory *dir);
00036 void freeDirCache(Stream_t *Stream);
00037 dirCacheEntry_t *addFreeEntry(dirCache_t *Stream, int begin, int end);
00038 dirCacheEntry_t *addEndEntry(dirCache_t *Stream, int pos);
00039 dirCacheEntry_t *lookupInDircache(dirCache_t *Stream, int pos);
00040 #endif
