1 /* Public domain. */

     2 

     3 #ifndef CDB_H

     4 #define CDB_H

     5 

     6 #include "uint32.h"

     7 

     8 #define CDB_HASHSTART 5381

     9 extern uint32 cdb_hashadd(uint32,unsigned char);

    10 extern uint32 cdb_hash(char *,unsigned int);

    11 

    12 struct cdb {

    13   char *map; /* 0 if no map is available */

    14   int fd;

    15   uint32 size; /* initialized if map is nonzero */

    16   uint32 loop; /* number of hash slots searched under this key */

    17   uint32 khash; /* initialized if loop is nonzero */

    18   uint32 kpos; /* initialized if loop is nonzero */

    19   uint32 hpos; /* initialized if loop is nonzero */

    20   uint32 hslots; /* initialized if loop is nonzero */

    21   uint32 dpos; /* initialized if cdb_findnext() returns 1 */

    22   uint32 dlen; /* initialized if cdb_findnext() returns 1 */

    23 } ;

    24 

    25 extern void cdb_free(struct cdb *);

    26 extern void cdb_init(struct cdb *,int fd);

    27 

    28 extern int cdb_read(struct cdb *,char *,unsigned int,uint32);

    29 

    30 extern void cdb_findstart(struct cdb *);

    31 extern int cdb_findnext(struct cdb *,char *,unsigned int);

    32 extern int cdb_find(struct cdb *,char *,unsigned int);

    33 

    34 #define cdb_datapos(c) ((c)->dpos)

    35 #define cdb_datalen(c) ((c)->dlen)

    36 

    37 #endif