minix/commands/i386/mtools-3.9.7/dirCache.h

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2005-04-21 16:53:53 +02:00
#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