2 * Copyright (C) 1995-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.18 1999-05-15 14:36:38 adam
8 * Updated dictionary. Implemented "compression" of dictionary.
10 * Revision 1.17 1999/05/12 13:08:06 adam
11 * First version of ISAMS.
13 * Revision 1.16 1999/02/19 10:38:30 adam
14 * Implemented chdir-setting.
16 * Revision 1.15 1999/02/17 12:18:12 adam
17 * Fixed zebra_close so that a NULL pointer is ignored.
19 * Revision 1.14 1999/02/02 14:51:11 adam
20 * Updated WIN32 code specific sections. Changed header.
22 * Revision 1.13 1998/12/16 12:23:30 adam
23 * Added facility for database name mapping using resource mapdb.
25 * Revision 1.12 1998/11/16 10:18:10 adam
26 * Better error reporting for result sets.
28 * Revision 1.11 1998/10/16 08:14:34 adam
29 * Updated record control system.
31 * Revision 1.10 1998/09/22 10:03:42 adam
32 * Changed result sets to be persistent in the sense that they can
33 * be re-searched if needed.
34 * Fixed memory leak in rsm_or.
36 * Revision 1.9 1998/09/02 13:53:17 adam
37 * Extra parameter decode added to search routines to implement
40 * Revision 1.8 1998/08/24 17:29:23 adam
43 * Revision 1.7 1998/06/24 12:16:13 adam
44 * Support for relations on text operands. Open range support in
45 * DFA module (i.e. [-j], [g-]).
47 * Revision 1.6 1998/06/22 11:36:47 adam
48 * Added authentication check facility to zebra.
50 * Revision 1.5 1998/06/13 00:14:08 adam
53 * Revision 1.4 1998/06/12 12:22:12 adam
56 * Revision 1.3 1998/05/27 16:57:44 adam
57 * Zebra returns surrogate diagnostic for single records when
60 * Revision 1.2 1998/05/20 10:12:19 adam
61 * Implemented automatic EXPLAIN database maintenance.
62 * Modified Zebra to work with ASN.1 compiled version of YAZ.
64 * Revision 1.1 1998/03/05 08:45:13 adam
65 * New result set model and modular ranking system. Moved towards
66 * descent server API. System information stored as "SGML" records.
82 static void zebra_chdir (ZebraHandle zh)
84 const char *dir = res_get (zh->res, "chdir");
87 logf (LOG_DEBUG, "chdir %s", dir);
94 static int zebra_register_lock (ZebraHandle zh)
101 state = zebra_server_lock_get_state(zh, &lastChange);
111 zebra_server_lock (zh, state);
115 if (zh->registerState == state)
117 if (zh->registerChange >= lastChange)
119 logf (LOG_LOG, "Register completely updated since last access");
121 else if (zh->registerState == -1)
122 logf (LOG_LOG, "Reading register using state %d pid=%ld", state,
125 logf (LOG_LOG, "Register has changed state from %d to %d",
126 zh->registerState, state);
127 zh->registerChange = lastChange;
130 zebraExplain_close (zh->zei, 0, 0);
131 dict_close (zh->dict);
132 sortIdx_close (zh->sortIdx);
136 isc_close (zh->isamc);
137 rec_close (&zh->records);
139 bf_cache (zh->bfs, state ? res_get (zh->res, "shadow") : NULL);
140 zh->registerState = state;
141 zh->records = rec_open (zh->bfs, 0);
142 if (!(zh->dict = dict_open (zh->bfs, FNAME_DICT, 40, 0, 0)))
144 logf (LOG_WARN, "dict_open");
147 if (!(zh->sortIdx = sortIdx_open (zh->bfs, 0)))
149 logf (LOG_WARN, "sortIdx_open");
155 if (res_get_match (zh->res, "isam", "i", NULL))
157 if (!(zh->isam = is_open (zh->bfs, FNAME_ISAM, key_compare, 0,
158 sizeof (struct it_key), zh->res)))
160 logf (LOG_WARN, "is_open");
164 else if (res_get_match (zh->res, "isam", "s", NULL))
166 if (!(zh->isams = isams_open (zh->bfs, FNAME_ISAMS, 0,
167 key_isams_m(zh->res))))
169 logf (LOG_WARN, "isams_open");
175 if (!(zh->isamc = isc_open (zh->bfs, FNAME_ISAMC,
176 0, key_isamc_m(zh->res))))
178 logf (LOG_WARN, "isc_open");
182 zh->zei = zebraExplain_open (zh->records, zh->dh, zh->res, 0, 0, 0);
187 static void zebra_register_unlock (ZebraHandle zh)
189 static int waitSec = -1;
193 logf (LOG_LOG, "user/system: %ld/%ld",
194 (long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
195 (long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
199 char *s = res_get (zh->res, "debugRequestWait");
210 if (zh->registerState != -1)
211 zebra_server_unlock (zh, zh->registerState);
214 ZebraHandle zebra_open (const char *configName)
216 ZebraHandle zh = xmalloc (sizeof(*zh));
218 if (!(zh->res = res_open (configName)))
220 logf (LOG_WARN, "Failed to read resources `%s'", configName);
224 zebra_server_lock_init (zh);
225 zh->dh = data1_create ();
226 zh->bfs = bfs_create (res_get (zh->res, "register"));
227 bf_lockDir (zh->bfs, res_get (zh->res, "lockDir"));
228 data1_set_tabpath (zh->dh, res_get(zh->res, "profilePath"));
230 zh->registerState = -1; /* trigger open of registers! */
231 zh->registerChange = 0;
232 zh->recTypes = recTypes_init (zh->dh);
233 recTypes_default_handlers (zh->recTypes);
236 zh->zebra_maps = zebra_maps_open (zh->res);
237 zh->rank_classes = NULL;
241 zebraRankInstall (zh, rank1_class);
243 if (!res_get (zh->res, "passwd"))
244 zh->passwd_db = NULL;
247 zh->passwd_db = passwd_db_open ();
249 logf (LOG_WARN|LOG_ERRNO, "passwd_db_open failed");
251 passwd_db_file (zh->passwd_db, res_get (zh->res, "passwd"));
256 void zebra_close (ZebraHandle zh)
263 resultSetDestroy (zh);
264 zebraExplain_close (zh->zei, 0, 0);
265 dict_close (zh->dict);
266 sortIdx_close (zh->sortIdx);
270 isc_close (zh->isamc);
272 isams_close (zh->isams);
273 rec_close (&zh->records);
274 zebra_register_unlock (zh);
276 recTypes_destroy (zh->recTypes);
277 zebra_maps_close (zh->zebra_maps);
278 zebraRankDestroy (zh);
279 bfs_destroy (zh->bfs);
280 data1_destroy (zh->dh);
281 zebra_server_lock_destroy (zh);
284 passwd_db_close (zh->passwd_db);
289 struct map_baseinfo {
295 char **new_basenames;
299 void map_basenames_func (void *vp, const char *name, const char *value)
301 struct map_baseinfo *p = vp;
303 char fromdb[128], todb[8][128];
306 sscanf (value, "%127s %127s %127s %127s %127s %127s %127s %127s %127s",
307 fromdb, todb[0], todb[1], todb[2], todb[3], todb[4],
308 todb[5], todb[6], todb[7]);
312 for (i = 0; i<p->num_bases; i++)
313 if (p->basenames[i] && !strcmp (p->basenames[i], fromdb))
316 for (i = 0; i < no; i++)
318 if (p->new_num_bases == p->new_num_max)
320 p->new_basenames[(p->new_num_bases)++] =
321 nmem_strdup (p->mem, todb[i]);
327 void map_basenames (ZebraHandle zh, ODR stream,
328 int *num_bases, char ***basenames)
330 struct map_baseinfo info;
331 struct map_baseinfo *p = &info;
335 info.num_bases = *num_bases;
336 info.basenames = *basenames;
337 info.new_num_max = 128;
338 info.new_num_bases = 0;
339 info.new_basenames = (char **)
340 odr_malloc (stream, sizeof(*info.new_basenames) * info.new_num_max);
341 info.mem = stream->mem;
343 res_trav (zh->res, "mapdb", &info, map_basenames_func);
345 for (i = 0; i<p->num_bases; i++)
346 if (p->basenames[i] && p->new_num_bases < p->new_num_max)
348 p->new_basenames[(p->new_num_bases)++] =
349 nmem_strdup (p->mem, p->basenames[i]);
351 *num_bases = info.new_num_bases;
352 *basenames = info.new_basenames;
353 for (i = 0; i<*num_bases; i++)
354 logf (LOG_LOG, "base %s", (*basenames)[i]);
357 void zebra_search_rpn (ZebraHandle zh, ODR stream, ODR decode,
358 Z_RPNQuery *query, int num_bases, char **basenames,
361 zebra_register_lock (zh);
363 zh->errString = NULL;
366 map_basenames (zh, stream, &num_bases, &basenames);
367 resultSetAddRPN (zh, stream, decode, query, num_bases, basenames, setname);
369 zebra_register_unlock (zh);
372 void zebra_records_retrieve (ZebraHandle zh, ODR stream,
373 const char *setname, Z_RecordComposition *comp,
374 oid_value input_format, int num_recs,
375 ZebraRetrievalRecord *recs)
381 zh->errString = NULL;
382 pos_array = xmalloc (num_recs * sizeof(*pos_array));
383 for (i = 0; i<num_recs; i++)
384 pos_array[i] = recs[i].position;
386 zebra_register_lock (zh);
388 poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
391 logf (LOG_DEBUG, "zebraPosSetCreate error");
393 zh->errString = nmem_strdup (stream->mem, setname);
397 for (i = 0; i<num_recs; i++)
403 sprintf (num_str, "%d", pos_array[i]);
405 zh->errString = nmem_strdup (stream->mem, num_str);
411 zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
412 stream, input_format, comp,
413 &recs[i].format, &recs[i].buf,
416 recs[i].errString = NULL;
419 zebraPosSetDestroy (zh, poset, num_recs);
421 zebra_register_unlock (zh);
425 void zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
426 oid_value attributeset,
427 int num_bases, char **basenames,
428 int *position, int *num_entries, ZebraScanEntry **entries,
432 zh->errString = NULL;
433 zebra_register_lock (zh);
434 map_basenames (zh, stream, &num_bases, &basenames);
435 rpn_scan (zh, stream, zapt, attributeset,
436 num_bases, basenames, position,
437 num_entries, entries, is_partial);
438 zebra_register_unlock (zh);
441 void zebra_sort (ZebraHandle zh, ODR stream,
442 int num_input_setnames, const char **input_setnames,
443 const char *output_setname, Z_SortKeySpecList *sort_sequence,
447 zh->errString = NULL;
448 zebra_register_lock (zh);
449 resultSetSort (zh, stream->mem, num_input_setnames, input_setnames,
450 output_setname, sort_sequence, sort_status);
451 zebra_register_unlock (zh);
454 int zebra_errCode (ZebraHandle zh)
459 const char *zebra_errString (ZebraHandle zh)
461 return diagbib1_str (zh->errCode);
464 char *zebra_errAdd (ZebraHandle zh)
466 return zh->errString;
469 int zebra_hits (ZebraHandle zh)
474 int zebra_auth (ZebraHandle zh, const char *user, const char *pass)
476 if (!zh->passwd_db || !passwd_db_auth (zh->passwd_db, user, pass))
481 void zebra_setDB (ZebraHandle zh, int num_bases, char **basenames)
486 void zebra_setRecordType (ZebraHandle zh, const char *type)
491 void zebra_setGroup (ZebraHandle zh, const char *group)
496 void zebra_admin (ZebraHandle zh, const char *command)