2 * Copyright (C) 1994-1996, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.23 1996-12-23 15:30:46 adam
9 * Bug fix: result sets weren't deleted after server shut down.
11 * Revision 1.22 1996/11/04 14:07:49 adam
12 * Moved truncation code to trunc.c.
14 * Revision 1.21 1996/10/29 14:09:58 adam
15 * Use of cisam system - enabled if setting isamc is 1.
17 * Revision 1.20 1996/06/04 10:19:02 adam
18 * Minor changes - removed include of ctype.h.
20 * Revision 1.19 1996/05/14 11:34:01 adam
21 * Scan support in multiple registers/databases.
23 * Revision 1.18 1996/05/14 06:16:50 adam
24 * Compact use/set bytes used in search service.
26 * Revision 1.17 1995/12/08 16:22:57 adam
27 * Work on update while servers are running. Three lock files introduced.
28 * The servers reload their registers when necessary, but they don't
29 * reestablish result sets yet.
31 * Revision 1.16 1995/12/07 17:38:48 adam
32 * Work locking mechanisms for concurrent updates/commit.
34 * Revision 1.15 1995/11/21 15:29:13 adam
35 * Config file 'base' read by default by both indexer and server.
37 * Revision 1.14 1995/11/16 17:00:57 adam
38 * Better logging of rpn query.
40 * Revision 1.13 1995/11/16 15:34:56 adam
41 * Uses new record management system in both indexer and server.
43 * Revision 1.12 1995/10/27 14:00:12 adam
44 * Implemented detection of database availability.
46 * Revision 1.11 1995/10/17 18:02:12 adam
47 * New feature: databases. Implemented as prefix to words in dictionary.
49 * Revision 1.10 1995/10/09 16:18:38 adam
50 * Function dict_lookup_grep got extra client data parameter.
52 * Revision 1.9 1995/10/06 14:38:01 adam
53 * New result set method: r_score.
54 * Local no (sysno) and score is transferred to retrieveCtrl.
56 * Revision 1.8 1995/10/06 13:52:06 adam
57 * Bug fixes. Handler may abort further scanning.
59 * Revision 1.7 1995/10/06 10:43:57 adam
60 * Scan added. 'occurrences' in scan entries not set yet.
62 * Revision 1.6 1995/09/28 09:19:48 adam
63 * xfree/xmalloc used everywhere.
64 * Extract/retrieve method seems to work for text records.
66 * Revision 1.5 1995/09/27 16:17:32 adam
67 * More work on retrieve.
69 * Revision 1.4 1995/09/14 11:53:28 adam
70 * First work on regular expressions/truncations.
72 * Revision 1.3 1995/09/08 08:53:23 adam
73 * Record buffer maintained in server_info.
75 * Revision 1.2 1995/09/06 16:11:19 adam
76 * Option: only one word key per file.
78 * Revision 1.1 1995/09/05 15:28:40 adam
79 * More work on search engine.
94 typedef struct ZServerSet_ {
98 struct ZServerSet_ *next;
102 int registerState; /* 0 (no commit pages), 1 (use commit pages) */
103 time_t registerChange;
115 int rpn_search (ZServerInfo *zi,
116 Z_RPNQuery *rpn, int num_bases, char **basenames,
117 const char *setname, int *hits);
119 int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt,
120 oid_value attributeset,
121 int num_bases, char **basenames,
122 int *position, int *num_entries, struct scan_entry **list,
125 RSET rset_trunc (ZServerInfo *zi, ISAM_P *isam_p, int no);
127 ZServerSet *resultSetAdd (ZServerInfo *zi, const char *name,
129 ZServerSet *resultSetGet (ZServerInfo *zi, const char *name);
130 void resultSetDestroy (ZServerInfo *zi);
132 ZServerSetSysno *resultSetSysnoGet (ZServerInfo *zi, const char *name,
133 int num, int *positions);
134 void resultSetSysnoDel (ZServerInfo *zi, ZServerSetSysno *records, int num);
135 void zlog_rpn (Z_RPNQuery *rpn);
137 int zebraServerLock (int lockCommit);
138 void zebraServerUnlock (int commitPhase);
139 int zebraServerLockGetState (time_t *timep);