2 * Copyright (C) 1995-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.70 1999-06-10 12:14:56 adam
8 * Fixed to use bend_start instead of pre_init.
10 * Revision 1.69 1999/06/10 09:20:03 adam
11 * Minor change to pre_init handler.
13 * Revision 1.68 1999/05/26 07:49:13 adam
16 * Revision 1.67 1999/02/02 14:51:14 adam
17 * Updated WIN32 code specific sections. Changed header.
19 * Revision 1.66 1998/10/28 10:54:41 adam
22 * Revision 1.65 1998/10/18 07:54:54 adam
23 * Additional info added for diagnostics 114 (Unsupported use attribute) and
24 * 121 (Unsupported attribute set).
26 * Revision 1.64 1998/09/22 10:48:21 adam
27 * Minor changes in search API.
29 * Revision 1.63 1998/09/02 13:53:21 adam
30 * Extra parameter decode added to search routines to implement
33 * Revision 1.62 1998/08/06 14:35:28 adam
34 * Routine bend_deleterequest removed.
36 * Revision 1.61 1998/06/24 12:16:15 adam
37 * Support for relations on text operands. Open range support in
38 * DFA module (i.e. [-j], [g-]).
40 * Revision 1.60 1998/06/22 11:36:49 adam
41 * Added authentication check facility to zebra.
43 * Revision 1.59 1998/06/12 12:22:13 adam
46 * Revision 1.58 1998/05/27 16:57:46 adam
47 * Zebra returns surrogate diagnostic for single records when
50 * Revision 1.57 1998/04/03 14:45:18 adam
51 * Fixed setting of last_in_set in bend_fetch.
53 * Revision 1.56 1998/03/05 08:45:13 adam
54 * New result set model and modular ranking system. Moved towards
55 * descent server API. System information stored as "SGML" records.
57 * Revision 1.55 1998/02/10 12:03:06 adam
60 * Revision 1.54 1998/01/29 13:39:13 adam
61 * Compress ISAM is default.
63 * Revision 1.53 1998/01/12 15:04:09 adam
64 * The test option (-s) only uses read-lock (and not write lock).
66 * Revision 1.52 1997/11/18 10:05:08 adam
67 * Changed character map facility so that admin can specify character
68 * mapping files for each register type, w, p, etc.
70 * Revision 1.51 1997/10/27 14:33:06 adam
71 * Moved towards generic character mapping depending on "structure"
72 * field in abstract syntax file. Fixed a few memory leaks. Fixed
73 * bug with negative integers when doing searches with relational
76 * Revision 1.50 1997/09/29 09:08:36 adam
77 * Revised locking system to be thread safe for the server.
79 * Revision 1.49 1997/09/25 14:57:23 adam
82 * Revision 1.48 1997/09/17 12:19:19 adam
83 * Zebra version corresponds to YAZ version 1.4.
84 * Changed Zebra server so that it doesn't depend on global common_resource.
86 * Revision 1.47 1997/09/04 13:58:36 adam
87 * New retrieve/extract method tellf (added).
88 * Added O_BINARY for open calls.
90 * Revision 1.46 1997/07/28 08:30:47 adam
91 * Server returns diagnostic 14 when record doesn't exist.
93 * Revision 1.45 1996/12/23 15:30:45 adam
95 * Bug fix: result sets weren't deleted after server shut down.
97 * Revision 1.44 1996/12/11 12:08:01 adam
98 * Added better compression.
100 * Revision 1.43 1996/11/15 15:03:58 adam
101 * Logging of execution speed by using the times(2) call.
103 * Revision 1.42 1996/11/08 11:10:36 adam
104 * Buffers used during file match got bigger.
105 * Compressed ISAM support everywhere.
106 * Bug fixes regarding masking characters in queries.
107 * Redesigned Regexp-2 queries.
109 * Revision 1.41 1996/10/29 14:09:56 adam
110 * Use of cisam system - enabled if setting isamc is 1.
112 * Revision 1.40 1996/06/04 10:19:02 adam
113 * Minor changes - removed include of ctype.h.
115 * Revision 1.39 1996/05/31 09:07:05 quinn
116 * Work on character-set handling
118 * Revision 1.38 1996/05/14 11:34:01 adam
119 * Scan support in multiple registers/databases.
121 * Revision 1.37 1996/05/14 06:16:48 adam
122 * Compact use/set bytes used in search service.
124 * Revision 1.36 1996/05/01 13:46:37 adam
125 * First work on multiple records in one file.
126 * New option, -offset, to the "unread" command in the filter module.
128 * Revision 1.35 1996/03/26 16:01:14 adam
129 * New setting lockPath: directory of various lock files.
131 * Revision 1.34 1996/03/20 09:36:46 adam
132 * Function dict_lookup_grep got extra parameter, init_pos, which marks
133 * from which position in pattern approximate pattern matching should occur.
134 * Approximate pattern matching is used in relevance=re-2.
136 * Revision 1.33 1996/01/17 14:57:56 adam
137 * Prototype changed for reader functions in extract/retrieve. File
138 * is identified by 'void *' instead of 'int.
140 * Revision 1.32 1995/12/11 09:12:58 adam
141 * The rec_get function returns NULL if record doesn't exist - will
142 * happen in the server if the result set records have been deleted since
143 * the creation of the set (i.e. the search).
144 * The server saves a result temporarily if it is 'volatile', i.e. the
145 * set is register dependent.
147 * Revision 1.31 1995/12/08 16:22:56 adam
148 * Work on update while servers are running. Three lock files introduced.
149 * The servers reload their registers when necessary, but they don't
150 * reestablish result sets yet.
152 * Revision 1.30 1995/12/07 17:38:48 adam
153 * Work locking mechanisms for concurrent updates/commit.
155 * Revision 1.29 1995/12/04 14:22:32 adam
156 * Extra arg to recType_byName.
157 * Started work on new regular expression parsed input to
158 * structured records.
160 * Revision 1.28 1995/11/28 09:09:48 adam
161 * Zebra config renamed.
162 * Use setting 'recordId' to identify record now.
163 * Bug fix in recindex.c: rec_release_blocks was invokeded even
164 * though the blocks were already released.
165 * File traversal properly deletes records when needed.
167 * Revision 1.27 1995/11/27 13:58:54 adam
168 * New option -t. storeStore data implemented in server.
170 * Revision 1.26 1995/11/25 10:24:07 adam
171 * More record fields - they are enumerated now.
172 * New options: flagStoreData flagStoreKey.
174 * Revision 1.25 1995/11/21 15:29:13 adam
175 * Config file 'base' read by default by both indexer and server.
177 * Revision 1.24 1995/11/20 16:59:47 adam
178 * New update method: the 'old' keys are saved for each records.
180 * Revision 1.23 1995/11/16 17:00:56 adam
181 * Better logging of rpn query.
183 * Revision 1.22 1995/11/16 15:34:55 adam
184 * Uses new record management system in both indexer and server.
186 * Revision 1.21 1995/11/01 16:25:52 quinn
187 * *** empty log message ***
189 * Revision 1.20 1995/10/27 14:00:12 adam
190 * Implemented detection of database availability.
192 * Revision 1.19 1995/10/17 18:02:11 adam
193 * New feature: databases. Implemented as prefix to words in dictionary.
195 * Revision 1.18 1995/10/16 14:03:09 quinn
196 * Changes to support element set names and espec1
198 * Revision 1.17 1995/10/16 09:32:40 adam
199 * More work on relational op.
201 * Revision 1.16 1995/10/13 12:26:44 adam
202 * Optimization of truncation.
204 * Revision 1.15 1995/10/12 12:40:55 adam
205 * Bug fixes in rpn_prox.
207 * Revision 1.14 1995/10/09 16:18:37 adam
208 * Function dict_lookup_grep got extra client data parameter.
210 * Revision 1.13 1995/10/06 14:38:00 adam
211 * New result set method: r_score.
212 * Local no (sysno) and score is transferred to retrieveCtrl.
214 * Revision 1.12 1995/10/06 13:52:06 adam
215 * Bug fixes. Handler may abort further scanning.
217 * Revision 1.11 1995/10/06 10:43:57 adam
218 * Scan added. 'occurrences' in scan entries not set yet.
220 * Revision 1.10 1995/10/02 16:43:32 quinn
221 * Set default resulting record type in fetch.
223 * Revision 1.9 1995/10/02 15:18:52 adam
224 * New member in recRetrieveCtrl: diagnostic.
226 * Revision 1.8 1995/09/28 09:19:47 adam
227 * xfree/xmalloc used everywhere.
228 * Extract/retrieve method seems to work for text records.
230 * Revision 1.7 1995/09/27 16:17:32 adam
231 * More work on retrieve.
233 * Revision 1.6 1995/09/08 08:53:22 adam
234 * Record buffer maintained in server_info.
236 * Revision 1.5 1995/09/06 16:11:18 adam
237 * Option: only one word key per file.
239 * Revision 1.4 1995/09/06 10:33:04 adam
240 * More work on present. Some log messages removed.
242 * Revision 1.3 1995/09/05 15:28:40 adam
243 * More work on search engine.
245 * Revision 1.2 1995/09/04 12:33:43 adam
246 * Various cleanup. YAZ util used instead.
248 * Revision 1.1 1995/09/04 09:10:41 adam
249 * More work on index add/del/update.
250 * Merge sort implemented.
251 * Initial work on z39 server.
274 #include "zebrasdr.h"
277 static int bend_sort (void *handle, bend_sort_rr *rr);
279 bend_initresult *bend_init (bend_initrequest *q)
281 bend_initresult *r = (bend_initresult *)
282 odr_malloc (q->stream, sizeof(*r));
284 struct statserv_options_block *sob;
290 q->bend_sort = bend_sort;
292 logf (LOG_DEBUG, "bend_init");
294 sob = statserv_getcontrol ();
295 if (!(zh = zebra_open (sob->configname)))
297 logf (LOG_FATAL, "Failed to open Zebra `%s'", sob->configname);
303 if (q->auth->which == Z_IdAuthentication_open)
305 char *openpass = xstrdup (q->auth->u.open);
306 char *cp = strchr (openpass, '/');
310 user = nmem_strdup (odr_getmem (q->stream), openpass);
311 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
316 if (zebra_auth (zh, user, passwd))
327 bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
329 ZebraHandle zh = (ZebraHandle) handle;
330 bend_searchresult *r = (bend_searchresult *)
331 odr_malloc (q->stream, sizeof(*r));
337 logf (LOG_LOG, "ResultSet '%s'", q->setname);
338 switch (q->query->which)
340 case Z_Query_type_1: case Z_Query_type_101:
341 zebra_search_rpn (zh, q->decode, q->stream, q->query->u.type_1,
342 q->num_bases, q->basenames, q->setname);
343 r->errcode = zh->errCode;
344 r->errstring = zh->errString;
349 r->errstring = "type-2";
357 bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
359 ZebraHandle zh = (ZebraHandle) handle;
360 bend_fetchresult *r = (bend_fetchresult *)
361 odr_malloc (q->stream, sizeof(*r));
362 ZebraRetrievalRecord retrievalRecord;
364 retrievalRecord.position = q->number;
367 zebra_records_retrieve (zh, q->stream, q->setname, q->comp,
368 q->format, 1, &retrievalRecord);
369 if (zh->errCode) /* non Surrogate Diagnostic */
371 r->errcode = zh->errCode;
372 r->errstring = zh->errString;
374 else if (retrievalRecord.errCode) /* Surrogate Diagnostic */
376 q->surrogate_flag = 1;
377 r->errcode = retrievalRecord.errCode;
378 r->errstring = retrievalRecord.errString;
379 r->basename = retrievalRecord.base;
381 else /* Database Record */
384 r->basename = retrievalRecord.base;
385 r->record = retrievalRecord.buf;
386 r->len = retrievalRecord.len;
387 r->format = retrievalRecord.format;
392 bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
394 ZebraScanEntry *entries;
395 ZebraHandle zh = (ZebraHandle) handle;
396 bend_scanresult *r = (bend_scanresult *)
397 odr_malloc (q->stream, sizeof(*r));
400 r->term_position = q->term_position;
401 r->num_entries = q->num_entries;
403 r->entries = (struct scan_entry *)
404 odr_malloc (q->stream, sizeof(*r->entries) * q->num_entries);
405 zebra_scan (zh, q->stream, q->term,
407 q->num_bases, q->basenames,
409 &r->num_entries, &entries, &is_partial);
411 r->status = BEND_SCAN_PARTIAL;
413 r->status = BEND_SCAN_SUCCESS;
414 for (i = 0; i < r->num_entries; i++)
416 r->entries[i].term = entries[i].term;
417 r->entries[i].occurrences = entries[i].occurrences;
419 r->errcode = zh->errCode;
420 r->errstring = zh->errString;
424 void bend_close (void *handle)
426 zebra_close ((ZebraHandle) handle);
429 int bend_sort (void *handle, bend_sort_rr *rr)
431 ZebraHandle zh = (ZebraHandle) handle;
433 zebra_sort (zh, rr->stream,
434 rr->num_input_setnames, (const char **) rr->input_setnames,
435 rr->output_setname, rr->sort_sequence, &rr->sort_status);
436 rr->errcode = zh->errCode;
437 rr->errstring = zh->errString;
442 static void bend_start (struct statserv_options_block *sob)
446 char *pidfile = "zebrasrv.pid";
447 int fd = creat (pidfile, 0666);
449 logf (LOG_WARN|LOG_ERRNO, "creat %s", pidfile);
454 sprintf (pidstr, "%ld", (long) getpid ());
455 write (fd, pidstr, strlen(pidstr));
462 int main (int argc, char **argv)
464 struct statserv_options_block *sob;
466 sob = statserv_getcontrol ();
467 strcpy (sob->configname, FNAME_CONFIG);
469 sob->bend_start = bend_start;
471 statserv_setcontrol (sob);
476 return statserv_main (argc, argv);