2 $Id: cache.h,v 1.1 2009-02-02 11:55:01 franklahm Exp $
3 Copyright (c) 2008,2009 Frank Lahm <franklahm@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
20 * We need to cache all LDAP querie results, they just take too long.
21 * We do hashing with chaining. Two caches are needed:
22 * 1) name -> uuid, indexed by a hash(f(): hashstring) of the name
23 * 2) uuid -> name, indexed by a hash of the uuid(f(): hashuuid)
24 * Both hash funcs result in a value 0-255 with which we index a array.
25 * We malloc and free all elements as needed.
26 * The cache caches for CACHESECONDS.
29 #define CACHESECONDS 600
31 /********************************************************
33 ********************************************************/
36 * name: search for this name
37 * type: of type USER or GROUP
38 * uuid: if found copies uuid into this buffer
39 * returns 0 on success, !=0 if not found or on errors
41 extern int search_cachebyname( const char *name, uuidtype_t type, uuidp_t uuid);
48 * returns 0 on success, !=0 on memory errors
50 extern int add_cachebyname( const char *inname, const uuidp_t inuuid, const uuidtype_t type, const unsigned long uid);
52 /* same as above but for the uuid cache */
53 extern int search_cachebyuuid( uuidp_t uuidp, char **name, uuidtype_t *type);
54 extern int add_cachebyuuid( uuidp_t inuuid, const char *inname, uuidtype_t type, const unsigned long uid);
56 #endif /* LDAPCACHE_H */