X-Git-Url: http://git.indexdata.com/?p=idzebra-moved-to-github.git;a=blobdiff_plain;f=index%2Fzserver.h;h=dd9335238b01010fab0de4f9c7bdeeb65c6a4e42;hp=b5899c1db2658c2c42751589b8e00ac845604f5b;hb=ce3907338568fce46c5751e7e1091a5ad1c8e291;hpb=ca19a15163ee74ee0c6765bfef4fd9794627e26a diff --git a/index/zserver.h b/index/zserver.h index b5899c1..dd93352 100644 --- a/index/zserver.h +++ b/index/zserver.h @@ -1,10 +1,91 @@ /* - * Copyright (C) 1994-1995, Index Data I/S + * Copyright (C) 1994-1998, Index Data I/S * All rights reserved. * Sebastian Hammer, Adam Dickmeiss * * $Log: zserver.h,v $ - * Revision 1.6 1995-09-28 09:19:48 adam + * 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. * @@ -25,44 +106,171 @@ * */ -#include "index.h" -#include + +#ifndef USE_TIMES +#ifdef __linux__ +#define USE_TIMES 1 +#else +#define USE_TIMES 0 +#endif +#endif + +#if USE_TIMES +#include +#endif + +#include #include -typedef struct { - size_t size; - char *buf; -} ZServerRecord; +#include +#include "index.h" +#include "zinfo.h" typedef struct { int sysno; -} ZServerSetSysno; + int score; +} *ZebraPosSet; -typedef struct ZServerSet_ { - char *name; - RSET rset; - int size; - struct ZServerSet_ *next; -} ZServerSet; +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; -typedef struct { - ZServerSet *sets; - Dict wordDict; - ISAM wordIsam; - Dict fileDict; - int sys_idx_fd; - char *recordBuf; +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; -} ZServerInfo; - -int rpn_search (ZServerInfo *zi, - Z_RPNQuery *rpn, int num_bases, char **basenames, - const char *setname, int *hits); - -ZServerSet *resultSetAdd (ZServerInfo *zi, const char *name, - int ov, RSET rset); -ZServerSet *resultSetGet (ZServerInfo *zi, const char *name); -ZServerSetSysno *resultSetSysnoGet (ZServerInfo *zi, const char *name, - int num, int *positions); -void resultSetRecordDel (ZServerInfo *zi, ZServerRecord *records, int num); + ZebraExplainInfo zei; + data1_handle dh; + data1_attset *registered_sets; + 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); +}; + +void rpn_search (ZebraHandle zh, ODR stream, + Z_RPNQuery *rpn, int num_bases, char **basenames, + const char *setname); + + +typedef struct { + int occurrences; + char *term; +} ZebraScanEntry; + +void rpn_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt, + oid_value attributeset, + int num_bases, char **basenames, + int *position, int *num_entries, ZebraScanEntry **list, + int *is_partial); + +RSET rset_trunc (ZebraHandle zh, ISAM_P *isam_p, int no, + const char *term, int length_term, const char *flags); + +ZebraSet resultSetAdd (ZebraHandle zh, const char *name, + int ov, RSET rset, int *hits); +ZebraSet resultSetGet (ZebraHandle zh, const char *name); +RSET resultSetRef (ZebraHandle zh, Z_ResultSetId *resultSetId); +void resultSetDestroy (ZebraHandle zh); + +ZebraPosSet zebraPosSetCreate (ZebraHandle zh, const char *name, + int num, int *positions); +void zebraPosSetDestroy (ZebraHandle zh, ZebraPosSet records, int num); + +void resultSetSort (ZebraHandle zh, ODR stream, + int num_input_setnames, char **input_setnames, + char *output_setname, Z_SortKeySpecList *sort_sequence, + int *sort_status); + +void zebra_sort (ZebraHandle zh, ODR stream, + int num_input_setnames, char **input_setnames, + char *output_setname, Z_SortKeySpecList *sort_sequence, + int *sort_status); + +void zlog_rpn (Z_RPNQuery *rpn); +void zlog_scan (Z_AttributesPlusTerm *zapt, oid_value ast); + +int zebra_server_lock_init (ZebraHandle zh); +int zebra_server_lock_destroy (ZebraHandle zh); +int zebra_server_lock (ZebraHandle zh, int lockCommit); +void zebra_server_unlock (ZebraHandle zh, int commitPhase); +int zebra_server_lock_get_state (ZebraHandle zh, time_t *timep); + +typedef struct attent +{ + int attset_ordinal; + data1_local_attribute *local_attributes; +} attent; + +void zebraRankInstall (ZebraHandle zh, struct rank_control *ctrl); +ZebraRankClass zebraRankLookup (ZebraHandle zh, const char *name); +void zebraRankDestroy (ZebraHandle zh); + +int att_getentbyatt(ZebraHandle zh, attent *res, oid_value set, int att); + +extern struct rank_control *rank1_class; + +ZebraHandle zebra_open (const char *host, const char *configName); +void zebra_search_rpn (ZebraHandle zh, ODR stream, + Z_RPNQuery *query, int num_bases, char **basenames, + const char *setname); + +typedef struct { + int position; + char *buf; + int len; + oid_value format; + char *base; +} ZebraRetrievalRecord; + +void zebra_records_retrieve (ZebraHandle zh, ODR stream, + const char *setname, Z_RecordComposition *comp, + oid_value input_format, + int num_recs, ZebraRetrievalRecord *recs); + +int zebra_record_fetch (ZebraHandle zh, int sysno, int score, ODR stream, + oid_value input_format, Z_RecordComposition *comp, + oid_value *output_format, char **rec_bufp, + int *rec_lenp, char **basenamep); + +void zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt, + oid_value attributeset, + int num_bases, char **basenames, + int *position, int *num_entries, ZebraScanEntry **list, + int *is_partial); + +void zebra_close (ZebraHandle zh); +