Commit | Line | Data |
---|---|---|
dc7ddb87 MW |
1 | /* Public domain. */ |
2 | /* Adapted from DJB's original cdb-0.75 package */ | |
3 | ||
4 | #ifndef CDB_H | |
5 | #define CDB_H | |
6 | ||
7 | #include "uint32.h" | |
8 | ||
9 | #define CDB_HASHSTART 5381 | |
10 | extern uint32 cdb_hashadd(uint32,unsigned char); | |
11 | extern uint32 cdb_hash(char *,unsigned int); | |
12 | ||
13 | struct cdb { | |
14 | char *map; /* 0 if no map is available */ | |
15 | int fd; | |
16 | uint32 size; /* initialized if map is nonzero */ | |
17 | uint32 loop; /* number of hash slots searched under this key */ | |
18 | uint32 khash; /* initialized if loop is nonzero */ | |
19 | uint32 kpos; /* initialized if loop is nonzero */ | |
20 | uint32 hpos; /* initialized if loop is nonzero */ | |
21 | uint32 hslots; /* initialized if loop is nonzero */ | |
22 | uint32 dpos; /* initialized if cdb_findnext() returns 1 */ | |
23 | uint32 dlen; /* initialized if cdb_findnext() returns 1 */ | |
24 | } ; | |
25 | ||
26 | extern void cdb_free(struct cdb *); | |
27 | extern void cdb_init(struct cdb *,int fd); | |
28 | ||
29 | extern int cdb_read(struct cdb *,char *,unsigned int,uint32); | |
30 | ||
31 | extern void cdb_findstart(struct cdb *); | |
32 | extern int cdb_findnext(struct cdb *,char *,unsigned int); | |
33 | extern int cdb_find(struct cdb *,char *,unsigned int); | |
34 | ||
35 | #define cdb_datapos(c) ((c)->dpos) | |
36 | #define cdb_datalen(c) ((c)->dlen) | |
37 | ||
38 | #endif |