cdb.h

   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(const 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 *,const char *,unsigned int);
  32 extern int cdb_find(struct cdb *,const char *,unsigned int);
  33
  34 #define cdb_datapos(c) ((c)->dpos)
  35 #define cdb_datalen(c) ((c)->dlen)
  36
  37 #endif