1 /* 2 +----------------------------------------------------------------------+ 3 | PHP Version 7 | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) 1997-2018 The PHP Group | 6 +----------------------------------------------------------------------+ 7 | This source file is subject to version 3.01 of the PHP license, | 8 | that is bundled with this package in the file LICENSE, and is | 9 | available through the world-wide-web at the following url: | 10 | http://www.php.net/license/3_01.txt | 11 | If you did not receive a copy of the PHP license and are unable to | 12 | obtain it through the world-wide-web, please send a note to | 13 | license@php.net so we can mail you a copy immediately. | 14 +----------------------------------------------------------------------+ 15 | Author: Marcus Boerger <helly@php.net> | 16 +----------------------------------------------------------------------+ 17 */ 18 19 /* $Id$ */ 20 21 /* incorporated from D.J.Bernstein's cdb-0.75 (http://cr.yp.to/cdb.html)*/ 22 23 #ifndef CDB_H 24 #define CDB_H 25 26 #include "uint32.h" 27 28 #define CDB_HASHSTART 5381 29 30 struct cdb { 31 php_stream *fp; 32 uint32 loop; /* number of hash slots searched under this key */ 33 uint32 khash; /* initialized if loop is nonzero */ 34 uint32 kpos; /* initialized if loop is nonzero */ 35 uint32 hpos; /* initialized if loop is nonzero */ 36 uint32 hslots; /* initialized if loop is nonzero */ 37 uint32 dpos; /* initialized if cdb_findnext() returns 1 */ 38 uint32 dlen; /* initialized if cdb_findnext() returns 1 */ 39 }; 40 41 uint32 cdb_hash(char *, unsigned int); 42 43 void cdb_free(struct cdb *); 44 void cdb_init(struct cdb *, php_stream *fp); 45 46 int cdb_read(struct cdb *, char *, unsigned int, uint32); 47 48 void cdb_findstart(struct cdb *); 49 int cdb_findnext(struct cdb *, char *, unsigned int); 50 int cdb_find(struct cdb *, char *, unsigned int); 51 52 #define cdb_datapos(c) ((c)->dpos) 53 #define cdb_datalen(c) ((c)->dlen) 54 55 char *cdb_version(); 56 57 #endif 58
