-/*
- * Copyright (C) 1994-1998, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: zserver.h,v $
- * Revision 1.31 1998-05-20 10:12:23 adam
- * Implemented automatic EXPLAIN database maintenance.
- * Modified Zebra to work with ASN.1 compiled version of YAZ.
- *
- * Revision 1.30 1998/03/05 08:45:13 adam
- * New result set model and modular ranking system. Moved towards
- * descent server API. System information stored as "SGML" records.
- *
- * Revision 1.29 1998/02/10 12:03:06 adam
- * Implemented Sort.
- *
- * Revision 1.28 1998/01/29 13:40:11 adam
- * Better logging for scan service.
- *
- * Revision 1.27 1997/10/27 14:33:06 adam
- * Moved towards generic character mapping depending on "structure"
- * field in abstract syntax file. Fixed a few memory leaks. Fixed
- * bug with negative integers when doing searches with relational
- * operators.
- *
- * Revision 1.26 1997/09/29 12:41:35 adam
- * Fixed bug regarding USE_TIMES var.
- *
- * Revision 1.25 1997/09/29 09:08:36 adam
- * Revised locking system to be thread safe for the server.
- *
- * Revision 1.24 1997/09/17 12:19:19 adam
- * Zebra version corresponds to YAZ version 1.4.
- * Changed Zebra server so that it doesn't depend on global common_resource.
- *
- * Revision 1.23 1996/12/23 15:30:46 adam
- * Work on truncation.
- * Bug fix: result sets weren't deleted after server shut down.
- *
- * Revision 1.22 1996/11/04 14:07:49 adam
- * Moved truncation code to trunc.c.
- *
- * Revision 1.21 1996/10/29 14:09:58 adam
- * Use of cisam system - enabled if setting isamc is 1.
- *
- * Revision 1.20 1996/06/04 10:19:02 adam
- * Minor changes - removed include of ctype.h.
- *
- * Revision 1.19 1996/05/14 11:34:01 adam
- * Scan support in multiple registers/databases.
- *
- * Revision 1.18 1996/05/14 06:16:50 adam
- * Compact use/set bytes used in search service.
- *
- * Revision 1.17 1995/12/08 16:22:57 adam
- * Work on update while servers are running. Three lock files introduced.
- * The servers reload their registers when necessary, but they don't
- * reestablish result sets yet.
- *
- * Revision 1.16 1995/12/07 17:38:48 adam
- * Work locking mechanisms for concurrent updates/commit.
- *
- * Revision 1.15 1995/11/21 15:29:13 adam
- * Config file 'base' read by default by both indexer and server.
- *
- * Revision 1.14 1995/11/16 17:00:57 adam
- * Better logging of rpn query.
- *
- * Revision 1.13 1995/11/16 15:34:56 adam
- * Uses new record management system in both indexer and server.
- *
- * Revision 1.12 1995/10/27 14:00:12 adam
- * Implemented detection of database availability.
- *
- * Revision 1.11 1995/10/17 18:02:12 adam
- * New feature: databases. Implemented as prefix to words in dictionary.
- *
- * Revision 1.10 1995/10/09 16:18:38 adam
- * Function dict_lookup_grep got extra client data parameter.
- *
- * Revision 1.9 1995/10/06 14:38:01 adam
- * New result set method: r_score.
- * Local no (sysno) and score is transferred to retrieveCtrl.
- *
- * Revision 1.8 1995/10/06 13:52:06 adam
- * Bug fixes. Handler may abort further scanning.
- *
- * Revision 1.7 1995/10/06 10:43:57 adam
- * Scan added. 'occurrences' in scan entries not set yet.
- *
- * Revision 1.6 1995/09/28 09:19:48 adam
- * xfree/xmalloc used everywhere.
- * Extract/retrieve method seems to work for text records.
- *
- * Revision 1.5 1995/09/27 16:17:32 adam
- * More work on retrieve.
- *
- * Revision 1.4 1995/09/14 11:53:28 adam
- * First work on regular expressions/truncations.
- *
- * Revision 1.3 1995/09/08 08:53:23 adam
- * Record buffer maintained in server_info.
- *
- * Revision 1.2 1995/09/06 16:11:19 adam
- * Option: only one word key per file.
- *
- * Revision 1.1 1995/09/05 15:28:40 adam
- * More work on search engine.
- *
- */
-
-
-#ifndef USE_TIMES
-#ifdef __linux__
-#define USE_TIMES 1
-#else
-#define USE_TIMES 0
-#endif
-#endif
-
-#if USE_TIMES
-#include <sys/times.h>
-#endif
-
-#include <backend.h>
-#include <rset.h>
-
-#include <sortidx.h>
-#include "index.h"
-#include "zinfo.h"
-
-typedef struct {
- int sysno;
- int score;
-} *ZebraPosSet;
-
-typedef struct zebra_set *ZebraSet;
-
-typedef struct zebra_rank_class {
- struct rank_control *control;
- int init_flag;
- void *class_handle;
- struct zebra_rank_class *next;
-} *ZebraRankClass;
-
-struct zebra_info {
- int registerState; /* 0 (no commit pages), 1 (use commit pages) */
- time_t registerChange;
- ZebraSet sets;
- Dict dict;
- SortIdx sortIdx;
- ISAM isam;
- ISAMC isamc;
- Records records;
- int errCode;
- int hits;
- char *errString;
- ZebraExplainInfo zei;
- data1_handle dh;
- BFiles bfs;
- Res res;
-
- ZebraLockHandle server_lock_cmt;
- ZebraLockHandle server_lock_org;
- char *server_path_prefix;
-#if USE_TIMES
- struct tms tms1;
- struct tms tms2;
-#endif
- ZebraMaps zebra_maps;
- ZebraRankClass rank_classes;
-};
-
-typedef struct zebra_info *ZebraHandle;
-
-struct rank_control {
- char *name;
- void *(*create)(ZebraHandle zh);
- void (*destroy)(ZebraHandle zh, void *class_handle);
- void *(*begin)(ZebraHandle zh, void *class_handle, RSET rset);
- void (*end)(ZebraHandle zh, void *set_handle);
- int (*calc)(void *set_handle, int sysno);
- void (*add)(void *set_handle, int seqno, int term_index);
-};