2 * Copyright (C) 1995-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.69 1999-06-10 09:20:03 adam
8 * Minor change to pre_init handler.
10 * Revision 1.68 1999/05/26 07:49:13 adam
13 * Revision 1.67 1999/02/02 14:51:14 adam
14 * Updated WIN32 code specific sections. Changed header.
16 * Revision 1.66 1998/10/28 10:54:41 adam
19 * Revision 1.65 1998/10/18 07:54:54 adam
20 * Additional info added for diagnostics 114 (Unsupported use attribute) and
21 * 121 (Unsupported attribute set).
23 * Revision 1.64 1998/09/22 10:48:21 adam
24 * Minor changes in search API.
26 * Revision 1.63 1998/09/02 13:53:21 adam
27 * Extra parameter decode added to search routines to implement
30 * Revision 1.62 1998/08/06 14:35:28 adam
31 * Routine bend_deleterequest removed.
33 * Revision 1.61 1998/06/24 12:16:15 adam
34 * Support for relations on text operands. Open range support in
35 * DFA module (i.e. [-j], [g-]).
37 * Revision 1.60 1998/06/22 11:36:49 adam
38 * Added authentication check facility to zebra.
40 * Revision 1.59 1998/06/12 12:22:13 adam
43 * Revision 1.58 1998/05/27 16:57:46 adam
44 * Zebra returns surrogate diagnostic for single records when
47 * Revision 1.57 1998/04/03 14:45:18 adam
48 * Fixed setting of last_in_set in bend_fetch.
50 * Revision 1.56 1998/03/05 08:45:13 adam
51 * New result set model and modular ranking system. Moved towards
52 * descent server API. System information stored as "SGML" records.
54 * Revision 1.55 1998/02/10 12:03:06 adam
57 * Revision 1.54 1998/01/29 13:39:13 adam
58 * Compress ISAM is default.
60 * Revision 1.53 1998/01/12 15:04:09 adam
61 * The test option (-s) only uses read-lock (and not write lock).
63 * Revision 1.52 1997/11/18 10:05:08 adam
64 * Changed character map facility so that admin can specify character
65 * mapping files for each register type, w, p, etc.
67 * Revision 1.51 1997/10/27 14:33:06 adam
68 * Moved towards generic character mapping depending on "structure"
69 * field in abstract syntax file. Fixed a few memory leaks. Fixed
70 * bug with negative integers when doing searches with relational
73 * Revision 1.50 1997/09/29 09:08:36 adam
74 * Revised locking system to be thread safe for the server.
76 * Revision 1.49 1997/09/25 14:57:23 adam
79 * Revision 1.48 1997/09/17 12:19:19 adam
80 * Zebra version corresponds to YAZ version 1.4.
81 * Changed Zebra server so that it doesn't depend on global common_resource.
83 * Revision 1.47 1997/09/04 13:58:36 adam
84 * New retrieve/extract method tellf (added).
85 * Added O_BINARY for open calls.
87 * Revision 1.46 1997/07/28 08:30:47 adam
88 * Server returns diagnostic 14 when record doesn't exist.
90 * Revision 1.45 1996/12/23 15:30:45 adam
92 * Bug fix: result sets weren't deleted after server shut down.
94 * Revision 1.44 1996/12/11 12:08:01 adam
95 * Added better compression.
97 * Revision 1.43 1996/11/15 15:03:58 adam
98 * Logging of execution speed by using the times(2) call.
100 * Revision 1.42 1996/11/08 11:10:36 adam
101 * Buffers used during file match got bigger.
102 * Compressed ISAM support everywhere.
103 * Bug fixes regarding masking characters in queries.
104 * Redesigned Regexp-2 queries.
106 * Revision 1.41 1996/10/29 14:09:56 adam
107 * Use of cisam system - enabled if setting isamc is 1.
109 * Revision 1.40 1996/06/04 10:19:02 adam
110 * Minor changes - removed include of ctype.h.
112 * Revision 1.39 1996/05/31 09:07:05 quinn
113 * Work on character-set handling
115 * Revision 1.38 1996/05/14 11:34:01 adam
116 * Scan support in multiple registers/databases.
118 * Revision 1.37 1996/05/14 06:16:48 adam
119 * Compact use/set bytes used in search service.
121 * Revision 1.36 1996/05/01 13:46:37 adam
122 * First work on multiple records in one file.
123 * New option, -offset, to the "unread" command in the filter module.
125 * Revision 1.35 1996/03/26 16:01:14 adam
126 * New setting lockPath: directory of various lock files.
128 * Revision 1.34 1996/03/20 09:36:46 adam
129 * Function dict_lookup_grep got extra parameter, init_pos, which marks
130 * from which position in pattern approximate pattern matching should occur.
131 * Approximate pattern matching is used in relevance=re-2.
133 * Revision 1.33 1996/01/17 14:57:56 adam
134 * Prototype changed for reader functions in extract/retrieve. File
135 * is identified by 'void *' instead of 'int.
137 * Revision 1.32 1995/12/11 09:12:58 adam
138 * The rec_get function returns NULL if record doesn't exist - will
139 * happen in the server if the result set records have been deleted since
140 * the creation of the set (i.e. the search).
141 * The server saves a result temporarily if it is 'volatile', i.e. the
142 * set is register dependent.
144 * Revision 1.31 1995/12/08 16:22:56 adam
145 * Work on update while servers are running. Three lock files introduced.
146 * The servers reload their registers when necessary, but they don't
147 * reestablish result sets yet.
149 * Revision 1.30 1995/12/07 17:38:48 adam
150 * Work locking mechanisms for concurrent updates/commit.
152 * Revision 1.29 1995/12/04 14:22:32 adam
153 * Extra arg to recType_byName.
154 * Started work on new regular expression parsed input to
155 * structured records.
157 * Revision 1.28 1995/11/28 09:09:48 adam
158 * Zebra config renamed.
159 * Use setting 'recordId' to identify record now.
160 * Bug fix in recindex.c: rec_release_blocks was invokeded even
161 * though the blocks were already released.
162 * File traversal properly deletes records when needed.
164 * Revision 1.27 1995/11/27 13:58:54 adam
165 * New option -t. storeStore data implemented in server.
167 * Revision 1.26 1995/11/25 10:24:07 adam
168 * More record fields - they are enumerated now.
169 * New options: flagStoreData flagStoreKey.
171 * Revision 1.25 1995/11/21 15:29:13 adam
172 * Config file 'base' read by default by both indexer and server.
174 * Revision 1.24 1995/11/20 16:59:47 adam
175 * New update method: the 'old' keys are saved for each records.
177 * Revision 1.23 1995/11/16 17:00:56 adam
178 * Better logging of rpn query.
180 * Revision 1.22 1995/11/16 15:34:55 adam
181 * Uses new record management system in both indexer and server.
183 * Revision 1.21 1995/11/01 16:25:52 quinn
184 * *** empty log message ***
186 * Revision 1.20 1995/10/27 14:00:12 adam
187 * Implemented detection of database availability.
189 * Revision 1.19 1995/10/17 18:02:11 adam
190 * New feature: databases. Implemented as prefix to words in dictionary.
192 * Revision 1.18 1995/10/16 14:03:09 quinn
193 * Changes to support element set names and espec1
195 * Revision 1.17 1995/10/16 09:32:40 adam
196 * More work on relational op.
198 * Revision 1.16 1995/10/13 12:26:44 adam
199 * Optimization of truncation.
201 * Revision 1.15 1995/10/12 12:40:55 adam
202 * Bug fixes in rpn_prox.
204 * Revision 1.14 1995/10/09 16:18:37 adam
205 * Function dict_lookup_grep got extra client data parameter.
207 * Revision 1.13 1995/10/06 14:38:00 adam
208 * New result set method: r_score.
209 * Local no (sysno) and score is transferred to retrieveCtrl.
211 * Revision 1.12 1995/10/06 13:52:06 adam
212 * Bug fixes. Handler may abort further scanning.
214 * Revision 1.11 1995/10/06 10:43:57 adam
215 * Scan added. 'occurrences' in scan entries not set yet.
217 * Revision 1.10 1995/10/02 16:43:32 quinn
218 * Set default resulting record type in fetch.
220 * Revision 1.9 1995/10/02 15:18:52 adam
221 * New member in recRetrieveCtrl: diagnostic.
223 * Revision 1.8 1995/09/28 09:19:47 adam
224 * xfree/xmalloc used everywhere.
225 * Extract/retrieve method seems to work for text records.
227 * Revision 1.7 1995/09/27 16:17:32 adam
228 * More work on retrieve.
230 * Revision 1.6 1995/09/08 08:53:22 adam
231 * Record buffer maintained in server_info.
233 * Revision 1.5 1995/09/06 16:11:18 adam
234 * Option: only one word key per file.
236 * Revision 1.4 1995/09/06 10:33:04 adam
237 * More work on present. Some log messages removed.
239 * Revision 1.3 1995/09/05 15:28:40 adam
240 * More work on search engine.
242 * Revision 1.2 1995/09/04 12:33:43 adam
243 * Various cleanup. YAZ util used instead.
245 * Revision 1.1 1995/09/04 09:10:41 adam
246 * More work on index add/del/update.
247 * Merge sort implemented.
248 * Initial work on z39 server.
271 #include "zebrasdr.h"
274 static int bend_sort (void *handle, bend_sort_rr *rr);
276 bend_initresult *bend_init (bend_initrequest *q)
278 bend_initresult *r = (bend_initresult *)
279 odr_malloc (q->stream, sizeof(*r));
281 struct statserv_options_block *sob;
287 q->bend_sort = bend_sort;
289 logf (LOG_DEBUG, "bend_init");
291 sob = statserv_getcontrol ();
292 if (!(zh = zebra_open (sob->configname)))
294 logf (LOG_FATAL, "Failed to open Zebra `%s'", sob->configname);
300 if (q->auth->which == Z_IdAuthentication_open)
302 char *openpass = xstrdup (q->auth->u.open);
303 char *cp = strchr (openpass, '/');
307 user = nmem_strdup (odr_getmem (q->stream), openpass);
308 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
313 if (zebra_auth (zh, user, passwd))
324 bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
326 ZebraHandle zh = (ZebraHandle) handle;
327 bend_searchresult *r = (bend_searchresult *)
328 odr_malloc (q->stream, sizeof(*r));
334 logf (LOG_LOG, "ResultSet '%s'", q->setname);
335 switch (q->query->which)
337 case Z_Query_type_1: case Z_Query_type_101:
338 zebra_search_rpn (zh, q->decode, q->stream, q->query->u.type_1,
339 q->num_bases, q->basenames, q->setname);
340 r->errcode = zh->errCode;
341 r->errstring = zh->errString;
346 r->errstring = "type-2";
354 bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
356 ZebraHandle zh = (ZebraHandle) handle;
357 bend_fetchresult *r = (bend_fetchresult *)
358 odr_malloc (q->stream, sizeof(*r));
359 ZebraRetrievalRecord retrievalRecord;
361 retrievalRecord.position = q->number;
364 zebra_records_retrieve (zh, q->stream, q->setname, q->comp,
365 q->format, 1, &retrievalRecord);
366 if (zh->errCode) /* non Surrogate Diagnostic */
368 r->errcode = zh->errCode;
369 r->errstring = zh->errString;
371 else if (retrievalRecord.errCode) /* Surrogate Diagnostic */
373 q->surrogate_flag = 1;
374 r->errcode = retrievalRecord.errCode;
375 r->errstring = retrievalRecord.errString;
376 r->basename = retrievalRecord.base;
378 else /* Database Record */
381 r->basename = retrievalRecord.base;
382 r->record = retrievalRecord.buf;
383 r->len = retrievalRecord.len;
384 r->format = retrievalRecord.format;
389 bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
391 ZebraScanEntry *entries;
392 ZebraHandle zh = (ZebraHandle) handle;
393 bend_scanresult *r = (bend_scanresult *)
394 odr_malloc (q->stream, sizeof(*r));
397 r->term_position = q->term_position;
398 r->num_entries = q->num_entries;
400 r->entries = (struct scan_entry *)
401 odr_malloc (q->stream, sizeof(*r->entries) * q->num_entries);
402 zebra_scan (zh, q->stream, q->term,
404 q->num_bases, q->basenames,
406 &r->num_entries, &entries, &is_partial);
408 r->status = BEND_SCAN_PARTIAL;
410 r->status = BEND_SCAN_SUCCESS;
411 for (i = 0; i < r->num_entries; i++)
413 r->entries[i].term = entries[i].term;
414 r->entries[i].occurrences = entries[i].occurrences;
416 r->errcode = zh->errCode;
417 r->errstring = zh->errString;
421 void bend_close (void *handle)
423 zebra_close ((ZebraHandle) handle);
426 int bend_sort (void *handle, bend_sort_rr *rr)
428 ZebraHandle zh = (ZebraHandle) handle;
430 zebra_sort (zh, rr->stream,
431 rr->num_input_setnames, (const char **) rr->input_setnames,
432 rr->output_setname, rr->sort_sequence, &rr->sort_status);
433 rr->errcode = zh->errCode;
434 rr->errstring = zh->errString;
439 static void pre_init (struct statserv_options_block *sob)
443 char *pidfile = "zebrasrv.pid";
444 int fd = creat (pidfile, 0666);
446 logf (LOG_WARN|LOG_ERRNO, "creat %s", pidfile);
451 sprintf (pidstr, "%ld", (long) getpid ());
452 write (fd, pidstr, strlen(pidstr));
459 int main (int argc, char **argv)
461 struct statserv_options_block *sob;
463 sob = statserv_getcontrol ();
464 strcpy (sob->configname, FNAME_CONFIG);
466 sob->pre_init = pre_init;
468 statserv_setcontrol (sob);
473 return statserv_main (argc, argv);