cdbread.h

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/* Public domain. */
 
#ifndef CDB_H
#define CDB_H
 
#include "uint_t.h"
 
#define CDB_HASHSTART 5381ULL
extern uint32 cdb_hashadd(uint32,unsigned char);
extern uint32 cdb_hash(char *,unsigned int);
extern uint32 cdb_unpack(unsigned char *);
 
struct cdb {
  char *map; /* 0 if no map is available */
  int fd;
  uint32 size; /* initialized if map is nonzero */
  uint32 loop; /* number of hash slots searched under this key */
  uint32 khash; /* initialized if loop is nonzero */
  uint32 kpos; /* initialized if loop is nonzero */
  uint32 hpos; /* initialized if loop is nonzero */
  uint32 hslots; /* initialized if loop is nonzero */
  uint32 dpos; /* initialized if cdb_findnext() returns 1 */
  uint32 dlen; /* initialized if cdb_findnext() returns 1 */
} ;
 
extern void cdb_free(struct cdb *);
extern void cdb_init(struct cdb *,int fd);
 
extern int cdb_read(struct cdb *,char *,unsigned int,uint32);
 
extern void cdb_findstart(struct cdb *);
extern int cdb_findnext(struct cdb *,char *,unsigned int);
extern int cdb_find(struct cdb *,char *,unsigned int);
 
#define cdb_datapos(c) ((c)->dpos)
#define cdb_datalen(c) ((c)->dlen)
 
#endif