2 * Copyright (C) 1994-1997, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.27 1997-10-27 14:33:06 adam
8 * Moved towards generic character mapping depending on "structure"
9 * field in abstract syntax file. Fixed a few memory leaks. Fixed
10 * bug with negative integers when doing searches with relational
13 * Revision 1.26 1997/09/29 12:41:35 adam
14 * Fixed bug regarding USE_TIMES var.
16 * Revision 1.25 1997/09/29 09:08:36 adam
17 * Revised locking system to be thread safe for the server.
19 * Revision 1.24 1997/09/17 12:19:19 adam
20 * Zebra version corresponds to YAZ version 1.4.
21 * Changed Zebra server so that it doesn't depend on global common_resource.
23 * Revision 1.23 1996/12/23 15:30:46 adam
25 * Bug fix: result sets weren't deleted after server shut down.
27 * Revision 1.22 1996/11/04 14:07:49 adam
28 * Moved truncation code to trunc.c.
30 * Revision 1.21 1996/10/29 14:09:58 adam
31 * Use of cisam system - enabled if setting isamc is 1.
33 * Revision 1.20 1996/06/04 10:19:02 adam
34 * Minor changes - removed include of ctype.h.
36 * Revision 1.19 1996/05/14 11:34:01 adam
37 * Scan support in multiple registers/databases.
39 * Revision 1.18 1996/05/14 06:16:50 adam
40 * Compact use/set bytes used in search service.
42 * Revision 1.17 1995/12/08 16:22:57 adam
43 * Work on update while servers are running. Three lock files introduced.
44 * The servers reload their registers when necessary, but they don't
45 * reestablish result sets yet.
47 * Revision 1.16 1995/12/07 17:38:48 adam
48 * Work locking mechanisms for concurrent updates/commit.
50 * Revision 1.15 1995/11/21 15:29:13 adam
51 * Config file 'base' read by default by both indexer and server.
53 * Revision 1.14 1995/11/16 17:00:57 adam
54 * Better logging of rpn query.
56 * Revision 1.13 1995/11/16 15:34:56 adam
57 * Uses new record management system in both indexer and server.
59 * Revision 1.12 1995/10/27 14:00:12 adam
60 * Implemented detection of database availability.
62 * Revision 1.11 1995/10/17 18:02:12 adam
63 * New feature: databases. Implemented as prefix to words in dictionary.
65 * Revision 1.10 1995/10/09 16:18:38 adam
66 * Function dict_lookup_grep got extra client data parameter.
68 * Revision 1.9 1995/10/06 14:38:01 adam
69 * New result set method: r_score.
70 * Local no (sysno) and score is transferred to retrieveCtrl.
72 * Revision 1.8 1995/10/06 13:52:06 adam
73 * Bug fixes. Handler may abort further scanning.
75 * Revision 1.7 1995/10/06 10:43:57 adam
76 * Scan added. 'occurrences' in scan entries not set yet.
78 * Revision 1.6 1995/09/28 09:19:48 adam
79 * xfree/xmalloc used everywhere.
80 * Extract/retrieve method seems to work for text records.
82 * Revision 1.5 1995/09/27 16:17:32 adam
83 * More work on retrieve.
85 * Revision 1.4 1995/09/14 11:53:28 adam
86 * First work on regular expressions/truncations.
88 * Revision 1.3 1995/09/08 08:53:23 adam
89 * Record buffer maintained in server_info.
91 * Revision 1.2 1995/09/06 16:11:19 adam
92 * Option: only one word key per file.
94 * Revision 1.1 1995/09/05 15:28:40 adam
95 * More work on search engine.
109 #include <sys/times.h>
123 typedef struct ZServerSet_ {
127 struct ZServerSet_ *next;
131 int registerState; /* 0 (no commit pages), 1 (use commit pages) */
132 time_t registerChange;
143 data1_attset *registered_sets;
147 ZebraLockHandle server_lock_cmt;
148 ZebraLockHandle server_lock_org;
149 char *server_path_prefix;
154 ZebraMaps zebra_maps;
157 int rpn_search (ZServerInfo *zi,
158 Z_RPNQuery *rpn, int num_bases, char **basenames,
159 const char *setname, int *hits);
161 int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt,
162 oid_value attributeset,
163 int num_bases, char **basenames,
164 int *position, int *num_entries, struct scan_entry **list,
167 RSET rset_trunc (ZServerInfo *zi, ISAM_P *isam_p, int no);
169 ZServerSet *resultSetAdd (ZServerInfo *zi, const char *name,
171 ZServerSet *resultSetGet (ZServerInfo *zi, const char *name);
172 void resultSetDestroy (ZServerInfo *zi);
174 ZServerSetSysno *resultSetSysnoGet (ZServerInfo *zi, const char *name,
175 int num, int *positions);
176 void resultSetSysnoDel (ZServerInfo *zi, ZServerSetSysno *records, int num);
177 void zlog_rpn (Z_RPNQuery *rpn);
179 int zebra_server_lock_init (ZServerInfo *zi);
180 int zebra_server_lock_destroy (ZServerInfo *zi);
181 int zebra_server_lock (ZServerInfo *zi, int lockCommit);
182 void zebra_server_unlock (ZServerInfo *zi, int commitPhase);
183 int zebra_server_lock_get_state (ZServerInfo *zi, time_t *timep);
185 typedef struct attent
188 data1_local_attribute *local_attributes;
191 int att_getentbyatt(ZServerInfo *zi, attent *res, oid_value set, int att);