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