2 * Copyright (C) 1995-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.17 1999-05-12 13:08:06 adam
8 * First version of ISAMS.
10 * Revision 1.16 1999/02/19 10:38:30 adam
11 * Implemented chdir-setting.
13 * Revision 1.15 1999/02/17 12:18:12 adam
14 * Fixed zebra_close so that a NULL pointer is ignored.
16 * Revision 1.14 1999/02/02 14:51:11 adam
17 * Updated WIN32 code specific sections. Changed header.
19 * Revision 1.13 1998/12/16 12:23:30 adam
20 * Added facility for database name mapping using resource mapdb.
22 * Revision 1.12 1998/11/16 10:18:10 adam
23 * Better error reporting for result sets.
25 * Revision 1.11 1998/10/16 08:14:34 adam
26 * Updated record control system.
28 * Revision 1.10 1998/09/22 10:03:42 adam
29 * Changed result sets to be persistent in the sense that they can
30 * be re-searched if needed.
31 * Fixed memory leak in rsm_or.
33 * Revision 1.9 1998/09/02 13:53:17 adam
34 * Extra parameter decode added to search routines to implement
37 * Revision 1.8 1998/08/24 17:29:23 adam
40 * Revision 1.7 1998/06/24 12:16:13 adam
41 * Support for relations on text operands. Open range support in
42 * DFA module (i.e. [-j], [g-]).
44 * Revision 1.6 1998/06/22 11:36:47 adam
45 * Added authentication check facility to zebra.
47 * Revision 1.5 1998/06/13 00:14:08 adam
50 * Revision 1.4 1998/06/12 12:22:12 adam
53 * Revision 1.3 1998/05/27 16:57:44 adam
54 * Zebra returns surrogate diagnostic for single records when
57 * Revision 1.2 1998/05/20 10:12:19 adam
58 * Implemented automatic EXPLAIN database maintenance.
59 * Modified Zebra to work with ASN.1 compiled version of YAZ.
61 * Revision 1.1 1998/03/05 08:45:13 adam
62 * New result set model and modular ranking system. Moved towards
63 * descent server API. System information stored as "SGML" records.
79 static void zebra_chdir (ZebraHandle zh)
81 const char *dir = res_get (zh->res, "chdir");
84 logf (LOG_DEBUG, "chdir %s", dir);
91 static int zebra_register_lock (ZebraHandle zh)
98 state = zebra_server_lock_get_state(zh, &lastChange);
108 zebra_server_lock (zh, state);
112 if (zh->registerState == state)
114 if (zh->registerChange >= lastChange)
116 logf (LOG_LOG, "Register completely updated since last access");
118 else if (zh->registerState == -1)
119 logf (LOG_LOG, "Reading register using state %d pid=%ld", state,
122 logf (LOG_LOG, "Register has changed state from %d to %d",
123 zh->registerState, state);
124 zh->registerChange = lastChange;
127 zebraExplain_close (zh->zei, 0, 0);
128 dict_close (zh->dict);
129 sortIdx_close (zh->sortIdx);
133 isc_close (zh->isamc);
134 rec_close (&zh->records);
136 bf_cache (zh->bfs, state ? res_get (zh->res, "shadow") : NULL);
137 zh->registerState = state;
138 zh->records = rec_open (zh->bfs, 0);
139 if (!(zh->dict = dict_open (zh->bfs, FNAME_DICT, 40, 0)))
141 logf (LOG_WARN, "dict_open");
144 if (!(zh->sortIdx = sortIdx_open (zh->bfs, 0)))
146 logf (LOG_WARN, "sortIdx_open");
152 if (res_get_match (zh->res, "isam", "i", NULL))
154 if (!(zh->isam = is_open (zh->bfs, FNAME_ISAM, key_compare, 0,
155 sizeof (struct it_key), zh->res)))
157 logf (LOG_WARN, "is_open");
161 else if (res_get_match (zh->res, "isam", "s", NULL))
163 if (!(zh->isams = isams_open (zh->bfs, FNAME_ISAMS, 0,
164 key_isams_m(zh->res))))
166 logf (LOG_WARN, "isams_open");
172 if (!(zh->isamc = isc_open (zh->bfs, FNAME_ISAMC,
173 0, key_isamc_m(zh->res))))
175 logf (LOG_WARN, "isc_open");
179 zh->zei = zebraExplain_open (zh->records, zh->dh, zh->res, 0, 0, 0);
184 static void zebra_register_unlock (ZebraHandle zh)
186 static int waitSec = -1;
190 logf (LOG_LOG, "user/system: %ld/%ld",
191 (long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
192 (long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
196 char *s = res_get (zh->res, "debugRequestWait");
207 if (zh->registerState != -1)
208 zebra_server_unlock (zh, zh->registerState);
211 ZebraHandle zebra_open (const char *configName)
213 ZebraHandle zh = xmalloc (sizeof(*zh));
215 if (!(zh->res = res_open (configName)))
217 logf (LOG_WARN, "Failed to read resources `%s'", configName);
221 zebra_server_lock_init (zh);
222 zh->dh = data1_create ();
223 zh->bfs = bfs_create (res_get (zh->res, "register"));
224 bf_lockDir (zh->bfs, res_get (zh->res, "lockDir"));
225 data1_set_tabpath (zh->dh, res_get(zh->res, "profilePath"));
227 zh->registerState = -1; /* trigger open of registers! */
228 zh->registerChange = 0;
229 zh->recTypes = recTypes_init (zh->dh);
230 recTypes_default_handlers (zh->recTypes);
233 zh->zebra_maps = zebra_maps_open (zh->res);
234 zh->rank_classes = NULL;
238 zebraRankInstall (zh, rank1_class);
240 if (!res_get (zh->res, "passwd"))
241 zh->passwd_db = NULL;
244 zh->passwd_db = passwd_db_open ();
246 logf (LOG_WARN|LOG_ERRNO, "passwd_db_open failed");
248 passwd_db_file (zh->passwd_db, res_get (zh->res, "passwd"));
253 void zebra_close (ZebraHandle zh)
260 resultSetDestroy (zh);
261 zebraExplain_close (zh->zei, 0, 0);
262 dict_close (zh->dict);
263 sortIdx_close (zh->sortIdx);
267 isc_close (zh->isamc);
269 isams_close (zh->isams);
270 rec_close (&zh->records);
271 zebra_register_unlock (zh);
273 recTypes_destroy (zh->recTypes);
274 zebra_maps_close (zh->zebra_maps);
275 zebraRankDestroy (zh);
276 bfs_destroy (zh->bfs);
277 data1_destroy (zh->dh);
278 zebra_server_lock_destroy (zh);
281 passwd_db_close (zh->passwd_db);
286 struct map_baseinfo {
292 char **new_basenames;
296 void map_basenames_func (void *vp, const char *name, const char *value)
298 struct map_baseinfo *p = vp;
300 char fromdb[128], todb[8][128];
303 sscanf (value, "%127s %127s %127s %127s %127s %127s %127s %127s %127s",
304 fromdb, todb[0], todb[1], todb[2], todb[3], todb[4],
305 todb[5], todb[6], todb[7]);
309 for (i = 0; i<p->num_bases; i++)
310 if (p->basenames[i] && !strcmp (p->basenames[i], fromdb))
313 for (i = 0; i < no; i++)
315 if (p->new_num_bases == p->new_num_max)
317 p->new_basenames[(p->new_num_bases)++] =
318 nmem_strdup (p->mem, todb[i]);
324 void map_basenames (ZebraHandle zh, ODR stream,
325 int *num_bases, char ***basenames)
327 struct map_baseinfo info;
328 struct map_baseinfo *p = &info;
332 info.num_bases = *num_bases;
333 info.basenames = *basenames;
334 info.new_num_max = 128;
335 info.new_num_bases = 0;
336 info.new_basenames = (char **)
337 odr_malloc (stream, sizeof(*info.new_basenames) * info.new_num_max);
338 info.mem = stream->mem;
340 res_trav (zh->res, "mapdb", &info, map_basenames_func);
342 for (i = 0; i<p->num_bases; i++)
343 if (p->basenames[i] && p->new_num_bases < p->new_num_max)
345 p->new_basenames[(p->new_num_bases)++] =
346 nmem_strdup (p->mem, p->basenames[i]);
348 *num_bases = info.new_num_bases;
349 *basenames = info.new_basenames;
350 for (i = 0; i<*num_bases; i++)
351 logf (LOG_LOG, "base %s", (*basenames)[i]);
354 void zebra_search_rpn (ZebraHandle zh, ODR stream, ODR decode,
355 Z_RPNQuery *query, int num_bases, char **basenames,
358 zebra_register_lock (zh);
360 zh->errString = NULL;
363 map_basenames (zh, stream, &num_bases, &basenames);
364 resultSetAddRPN (zh, stream, decode, query, num_bases, basenames, setname);
366 zebra_register_unlock (zh);
369 void zebra_records_retrieve (ZebraHandle zh, ODR stream,
370 const char *setname, Z_RecordComposition *comp,
371 oid_value input_format, int num_recs,
372 ZebraRetrievalRecord *recs)
378 zh->errString = NULL;
379 pos_array = xmalloc (num_recs * sizeof(*pos_array));
380 for (i = 0; i<num_recs; i++)
381 pos_array[i] = recs[i].position;
383 zebra_register_lock (zh);
385 poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
388 logf (LOG_DEBUG, "zebraPosSetCreate error");
390 zh->errString = nmem_strdup (stream->mem, setname);
394 for (i = 0; i<num_recs; i++)
400 sprintf (num_str, "%d", pos_array[i]);
402 zh->errString = nmem_strdup (stream->mem, num_str);
408 zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
409 stream, input_format, comp,
410 &recs[i].format, &recs[i].buf,
413 recs[i].errString = NULL;
416 zebraPosSetDestroy (zh, poset, num_recs);
418 zebra_register_unlock (zh);
422 void zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
423 oid_value attributeset,
424 int num_bases, char **basenames,
425 int *position, int *num_entries, ZebraScanEntry **entries,
429 zh->errString = NULL;
430 zebra_register_lock (zh);
431 map_basenames (zh, stream, &num_bases, &basenames);
432 rpn_scan (zh, stream, zapt, attributeset,
433 num_bases, basenames, position,
434 num_entries, entries, is_partial);
435 zebra_register_unlock (zh);
438 void zebra_sort (ZebraHandle zh, ODR stream,
439 int num_input_setnames, const char **input_setnames,
440 const char *output_setname, Z_SortKeySpecList *sort_sequence,
444 zh->errString = NULL;
445 zebra_register_lock (zh);
446 resultSetSort (zh, stream->mem, num_input_setnames, input_setnames,
447 output_setname, sort_sequence, sort_status);
448 zebra_register_unlock (zh);
451 int zebra_errCode (ZebraHandle zh)
456 const char *zebra_errString (ZebraHandle zh)
458 return diagbib1_str (zh->errCode);
461 char *zebra_errAdd (ZebraHandle zh)
463 return zh->errString;
466 int zebra_hits (ZebraHandle zh)
471 int zebra_auth (ZebraHandle zh, const char *user, const char *pass)
473 if (!zh->passwd_db || !passwd_db_auth (zh->passwd_db, user, pass))
478 void zebra_setDB (ZebraHandle zh, int num_bases, char **basenames)
483 void zebra_setRecordType (ZebraHandle zh, const char *type)
488 void zebra_setGroup (ZebraHandle zh, const char *group)
493 void zebra_admin (ZebraHandle zh, const char *command)