source: trunk/minix/commands/i386/mtools-3.9.7/dirCache.h@ 10

#ifndef MTOOLS_DIRCACHE_H
#define MTOOLS_DIRCACHE_H

typedef enum {
        DCET_FREE,
        DCET_USED,
        DCET_END
} dirCacheEntryType_t;

#define DC_BITMAP_SIZE 128

typedef struct dirCacheEntry_t {
        dirCacheEntryType_t type;
        int beginSlot;
        int endSlot;
        char *shortName;
        char *longName;
        struct directory dir;
} 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, char *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, 
                              char *longName, char *shortName,
                              struct directory *dir);
void freeDirCache(Stream_t *Stream);
dirCacheEntry_t *addFreeEntry(dirCache_t *Stream, int begin, int end);
dirCacheEntry_t *addEndEntry(dirCache_t *Stream, int pos);
dirCacheEntry_t *lookupInDircache(dirCache_t *Stream, int pos);
#endif