2 * Copyright (C) 1995-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.75 1999-11-30 13:48:04 adam
8 * Improved installation. Updated for inclusion of YAZ header files.
10 * Revision 1.74 1999/11/29 15:13:26 adam
11 * Server sets implementationName - and Version.
13 * Revision 1.73 1999/11/04 15:00:45 adam
14 * Implemented delete result set(s).
16 * Revision 1.71 1999/07/14 10:59:26 adam
17 * Changed functions isc_getmethod, isams_getmethod.
18 * Improved fatal error handling (such as missing EXPLAIN schema).
20 * Revision 1.70 1999/06/10 12:14:56 adam
21 * Fixed to use bend_start instead of pre_init.
23 * Revision 1.69 1999/06/10 09:20:03 adam
24 * Minor change to pre_init handler.
26 * Revision 1.68 1999/05/26 07:49:13 adam
29 * Revision 1.67 1999/02/02 14:51:14 adam
30 * Updated WIN32 code specific sections. Changed header.
32 * Revision 1.66 1998/10/28 10:54:41 adam
35 * Revision 1.65 1998/10/18 07:54:54 adam
36 * Additional info added for diagnostics 114 (Unsupported use attribute) and
37 * 121 (Unsupported attribute set).
39 * Revision 1.64 1998/09/22 10:48:21 adam
40 * Minor changes in search API.
42 * Revision 1.63 1998/09/02 13:53:21 adam
43 * Extra parameter decode added to search routines to implement
46 * Revision 1.62 1998/08/06 14:35:28 adam
47 * Routine bend_deleterequest removed.
49 * Revision 1.61 1998/06/24 12:16:15 adam
50 * Support for relations on text operands. Open range support in
51 * DFA module (i.e. [-j], [g-]).
53 * Revision 1.60 1998/06/22 11:36:49 adam
54 * Added authentication check facility to zebra.
56 * Revision 1.59 1998/06/12 12:22:13 adam
59 * Revision 1.58 1998/05/27 16:57:46 adam
60 * Zebra returns surrogate diagnostic for single records when
63 * Revision 1.57 1998/04/03 14:45:18 adam
64 * Fixed setting of last_in_set in bend_fetch.
66 * Revision 1.56 1998/03/05 08:45:13 adam
67 * New result set model and modular ranking system. Moved towards
68 * descent server API. System information stored as "SGML" records.
70 * Revision 1.55 1998/02/10 12:03:06 adam
73 * Revision 1.54 1998/01/29 13:39:13 adam
74 * Compress ISAM is default.
76 * Revision 1.53 1998/01/12 15:04:09 adam
77 * The test option (-s) only uses read-lock (and not write lock).
79 * Revision 1.52 1997/11/18 10:05:08 adam
80 * Changed character map facility so that admin can specify character
81 * mapping files for each register type, w, p, etc.
83 * Revision 1.51 1997/10/27 14:33:06 adam
84 * Moved towards generic character mapping depending on "structure"
85 * field in abstract syntax file. Fixed a few memory leaks. Fixed
86 * bug with negative integers when doing searches with relational
89 * Revision 1.50 1997/09/29 09:08:36 adam
90 * Revised locking system to be thread safe for the server.
92 * Revision 1.49 1997/09/25 14:57:23 adam
95 * Revision 1.48 1997/09/17 12:19:19 adam
96 * Zebra version corresponds to YAZ version 1.4.
97 * Changed Zebra server so that it doesn't depend on global common_resource.
99 * Revision 1.47 1997/09/04 13:58:36 adam
100 * New retrieve/extract method tellf (added).
101 * Added O_BINARY for open calls.
103 * Revision 1.46 1997/07/28 08:30:47 adam
104 * Server returns diagnostic 14 when record doesn't exist.
106 * Revision 1.45 1996/12/23 15:30:45 adam
107 * Work on truncation.
108 * Bug fix: result sets weren't deleted after server shut down.
110 * Revision 1.44 1996/12/11 12:08:01 adam
111 * Added better compression.
113 * Revision 1.43 1996/11/15 15:03:58 adam
114 * Logging of execution speed by using the times(2) call.
116 * Revision 1.42 1996/11/08 11:10:36 adam
117 * Buffers used during file match got bigger.
118 * Compressed ISAM support everywhere.
119 * Bug fixes regarding masking characters in queries.
120 * Redesigned Regexp-2 queries.
122 * Revision 1.41 1996/10/29 14:09:56 adam
123 * Use of cisam system - enabled if setting isamc is 1.
125 * Revision 1.40 1996/06/04 10:19:02 adam
126 * Minor changes - removed include of ctype.h.
128 * Revision 1.39 1996/05/31 09:07:05 quinn
129 * Work on character-set handling
131 * Revision 1.38 1996/05/14 11:34:01 adam
132 * Scan support in multiple registers/databases.
134 * Revision 1.37 1996/05/14 06:16:48 adam
135 * Compact use/set bytes used in search service.
137 * Revision 1.36 1996/05/01 13:46:37 adam
138 * First work on multiple records in one file.
139 * New option, -offset, to the "unread" command in the filter module.
141 * Revision 1.35 1996/03/26 16:01:14 adam
142 * New setting lockPath: directory of various lock files.
144 * Revision 1.34 1996/03/20 09:36:46 adam
145 * Function dict_lookup_grep got extra parameter, init_pos, which marks
146 * from which position in pattern approximate pattern matching should occur.
147 * Approximate pattern matching is used in relevance=re-2.
149 * Revision 1.33 1996/01/17 14:57:56 adam
150 * Prototype changed for reader functions in extract/retrieve. File
151 * is identified by 'void *' instead of 'int.
153 * Revision 1.32 1995/12/11 09:12:58 adam
154 * The rec_get function returns NULL if record doesn't exist - will
155 * happen in the server if the result set records have been deleted since
156 * the creation of the set (i.e. the search).
157 * The server saves a result temporarily if it is 'volatile', i.e. the
158 * set is register dependent.
160 * Revision 1.31 1995/12/08 16:22:56 adam
161 * Work on update while servers are running. Three lock files introduced.
162 * The servers reload their registers when necessary, but they don't
163 * reestablish result sets yet.
165 * Revision 1.30 1995/12/07 17:38:48 adam
166 * Work locking mechanisms for concurrent updates/commit.
168 * Revision 1.29 1995/12/04 14:22:32 adam
169 * Extra arg to recType_byName.
170 * Started work on new regular expression parsed input to
171 * structured records.
173 * Revision 1.28 1995/11/28 09:09:48 adam
174 * Zebra config renamed.
175 * Use setting 'recordId' to identify record now.
176 * Bug fix in recindex.c: rec_release_blocks was invokeded even
177 * though the blocks were already released.
178 * File traversal properly deletes records when needed.
180 * Revision 1.27 1995/11/27 13:58:54 adam
181 * New option -t. storeStore data implemented in server.
183 * Revision 1.26 1995/11/25 10:24:07 adam
184 * More record fields - they are enumerated now.
185 * New options: flagStoreData flagStoreKey.
187 * Revision 1.25 1995/11/21 15:29:13 adam
188 * Config file 'base' read by default by both indexer and server.
190 * Revision 1.24 1995/11/20 16:59:47 adam
191 * New update method: the 'old' keys are saved for each records.
193 * Revision 1.23 1995/11/16 17:00:56 adam
194 * Better logging of rpn query.
196 * Revision 1.22 1995/11/16 15:34:55 adam
197 * Uses new record management system in both indexer and server.
199 * Revision 1.21 1995/11/01 16:25:52 quinn
200 * *** empty log message ***
202 * Revision 1.20 1995/10/27 14:00:12 adam
203 * Implemented detection of database availability.
205 * Revision 1.19 1995/10/17 18:02:11 adam
206 * New feature: databases. Implemented as prefix to words in dictionary.
208 * Revision 1.18 1995/10/16 14:03:09 quinn
209 * Changes to support element set names and espec1
211 * Revision 1.17 1995/10/16 09:32:40 adam
212 * More work on relational op.
214 * Revision 1.16 1995/10/13 12:26:44 adam
215 * Optimization of truncation.
217 * Revision 1.15 1995/10/12 12:40:55 adam
218 * Bug fixes in rpn_prox.
220 * Revision 1.14 1995/10/09 16:18:37 adam
221 * Function dict_lookup_grep got extra client data parameter.
223 * Revision 1.13 1995/10/06 14:38:00 adam
224 * New result set method: r_score.
225 * Local no (sysno) and score is transferred to retrieveCtrl.
227 * Revision 1.12 1995/10/06 13:52:06 adam
228 * Bug fixes. Handler may abort further scanning.
230 * Revision 1.11 1995/10/06 10:43:57 adam
231 * Scan added. 'occurrences' in scan entries not set yet.
233 * Revision 1.10 1995/10/02 16:43:32 quinn
234 * Set default resulting record type in fetch.
236 * Revision 1.9 1995/10/02 15:18:52 adam
237 * New member in recRetrieveCtrl: diagnostic.
239 * Revision 1.8 1995/09/28 09:19:47 adam
240 * xfree/xmalloc used everywhere.
241 * Extract/retrieve method seems to work for text records.
243 * Revision 1.7 1995/09/27 16:17:32 adam
244 * More work on retrieve.
246 * Revision 1.6 1995/09/08 08:53:22 adam
247 * Record buffer maintained in server_info.
249 * Revision 1.5 1995/09/06 16:11:18 adam
250 * Option: only one word key per file.
252 * Revision 1.4 1995/09/06 10:33:04 adam
253 * More work on present. Some log messages removed.
255 * Revision 1.3 1995/09/05 15:28:40 adam
256 * More work on search engine.
258 * Revision 1.2 1995/09/04 12:33:43 adam
259 * Various cleanup. YAZ util used instead.
261 * Revision 1.1 1995/09/04 09:10:41 adam
262 * More work on index add/del/update.
263 * Merge sort implemented.
264 * Initial work on z39 server.
278 #include <yaz/data1.h>
286 #include "zebrasdr.h"
289 static int bend_sort (void *handle, bend_sort_rr *rr);
290 static int bend_delete (void *handle, bend_delete_rr *rr);
292 bend_initresult *bend_init (bend_initrequest *q)
294 bend_initresult *r = (bend_initresult *)
295 odr_malloc (q->stream, sizeof(*r));
297 struct statserv_options_block *sob;
303 q->bend_sort = bend_sort;
304 q->bend_delete = bend_delete;
306 q->implementation_name = "Z'mbol Information Server";
307 q->implementation_version = "Z'mbol 1.0";
309 logf (LOG_DEBUG, "bend_init");
311 sob = statserv_getcontrol ();
312 if (!(zh = zebra_open (sob->configname)))
314 logf (LOG_FATAL, "Failed to open Zebra `%s'", sob->configname);
320 if (q->auth->which == Z_IdAuthentication_open)
322 char *openpass = xstrdup (q->auth->u.open);
323 char *cp = strchr (openpass, '/');
327 user = nmem_strdup (odr_getmem (q->stream), openpass);
328 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
333 if (zebra_auth (zh, user, passwd))
344 bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
346 ZebraHandle zh = (ZebraHandle) handle;
347 bend_searchresult *r = (bend_searchresult *)
348 odr_malloc (q->stream, sizeof(*r));
354 logf (LOG_LOG, "ResultSet '%s'", q->setname);
355 switch (q->query->which)
357 case Z_Query_type_1: case Z_Query_type_101:
358 zebra_search_rpn (zh, q->decode, q->stream, q->query->u.type_1,
359 q->num_bases, q->basenames, q->setname);
360 r->errcode = zh->errCode;
361 r->errstring = zh->errString;
366 r->errstring = "type-2";
374 bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
376 ZebraHandle zh = (ZebraHandle) handle;
377 bend_fetchresult *r = (bend_fetchresult *)
378 odr_malloc (q->stream, sizeof(*r));
379 ZebraRetrievalRecord retrievalRecord;
381 retrievalRecord.position = q->number;
384 zebra_records_retrieve (zh, q->stream, q->setname, q->comp,
385 q->format, 1, &retrievalRecord);
386 if (zh->errCode) /* non Surrogate Diagnostic */
388 r->errcode = zh->errCode;
389 r->errstring = zh->errString;
391 else if (retrievalRecord.errCode) /* Surrogate Diagnostic */
393 q->surrogate_flag = 1;
394 r->errcode = retrievalRecord.errCode;
395 r->errstring = retrievalRecord.errString;
396 r->basename = retrievalRecord.base;
398 else /* Database Record */
401 r->basename = retrievalRecord.base;
402 r->record = retrievalRecord.buf;
403 r->len = retrievalRecord.len;
404 r->format = retrievalRecord.format;
409 bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
411 ZebraScanEntry *entries;
412 ZebraHandle zh = (ZebraHandle) handle;
413 bend_scanresult *r = (bend_scanresult *)
414 odr_malloc (q->stream, sizeof(*r));
417 r->term_position = q->term_position;
418 r->num_entries = q->num_entries;
420 r->entries = (struct scan_entry *)
421 odr_malloc (q->stream, sizeof(*r->entries) * q->num_entries);
422 zebra_scan (zh, q->stream, q->term,
424 q->num_bases, q->basenames,
426 &r->num_entries, &entries, &is_partial);
428 r->status = BEND_SCAN_PARTIAL;
430 r->status = BEND_SCAN_SUCCESS;
431 for (i = 0; i < r->num_entries; i++)
433 r->entries[i].term = entries[i].term;
434 r->entries[i].occurrences = entries[i].occurrences;
436 r->errcode = zh->errCode;
437 r->errstring = zh->errString;
441 void bend_close (void *handle)
443 zebra_close ((ZebraHandle) handle);
446 int bend_sort (void *handle, bend_sort_rr *rr)
448 ZebraHandle zh = (ZebraHandle) handle;
450 zebra_sort (zh, rr->stream,
451 rr->num_input_setnames, (const char **) rr->input_setnames,
452 rr->output_setname, rr->sort_sequence, &rr->sort_status);
453 rr->errcode = zh->errCode;
454 rr->errstring = zh->errString;
458 int bend_delete (void *handle, bend_delete_rr *rr)
460 ZebraHandle zh = (ZebraHandle) handle;
462 rr->delete_status = zebra_deleleResultSet(zh, rr->function,
463 rr->num_setnames, rr->setnames,
469 static void bend_start (struct statserv_options_block *sob)
473 char *pidfile = "zebrasrv.pid";
474 int fd = creat (pidfile, 0666);
476 logf (LOG_WARN|LOG_ERRNO, "creat %s", pidfile);
481 sprintf (pidstr, "%ld", (long) getpid ());
482 write (fd, pidstr, strlen(pidstr));
489 int main (int argc, char **argv)
491 struct statserv_options_block *sob;
493 sob = statserv_getcontrol ();
494 strcpy (sob->configname, FNAME_CONFIG);
496 sob->bend_start = bend_start;
498 statserv_setcontrol (sob);
503 return statserv_main (argc, argv);