2 * Copyright (C) 1995-1998, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.13 1998-12-16 12:23:30 adam
8 * Added facility for database name mapping using resource mapdb.
10 * Revision 1.12 1998/11/16 10:18:10 adam
11 * Better error reporting for result sets.
13 * Revision 1.11 1998/10/16 08:14:34 adam
14 * Updated record control system.
16 * Revision 1.10 1998/09/22 10:03:42 adam
17 * Changed result sets to be persistent in the sense that they can
18 * be re-searched if needed.
19 * Fixed memory leak in rsm_or.
21 * Revision 1.9 1998/09/02 13:53:17 adam
22 * Extra parameter decode added to search routines to implement
25 * Revision 1.8 1998/08/24 17:29:23 adam
28 * Revision 1.7 1998/06/24 12:16:13 adam
29 * Support for relations on text operands. Open range support in
30 * DFA module (i.e. [-j], [g-]).
32 * Revision 1.6 1998/06/22 11:36:47 adam
33 * Added authentication check facility to zebra.
35 * Revision 1.5 1998/06/13 00:14:08 adam
38 * Revision 1.4 1998/06/12 12:22:12 adam
41 * Revision 1.3 1998/05/27 16:57:44 adam
42 * Zebra returns surrogate diagnostic for single records when
45 * Revision 1.2 1998/05/20 10:12:19 adam
46 * Implemented automatic EXPLAIN database maintenance.
47 * Modified Zebra to work with ASN.1 compiled version of YAZ.
49 * Revision 1.1 1998/03/05 08:45:13 adam
50 * New result set model and modular ranking system. Moved towards
51 * descent server API. System information stored as "SGML" records.
66 static int zebra_register_lock (ZebraHandle zh)
69 int state = zebra_server_lock_get_state(zh, &lastChange);
79 zebra_server_lock (zh, state);
83 if (zh->registerState == state)
85 if (zh->registerChange >= lastChange)
87 logf (LOG_LOG, "Register completely updated since last access");
89 else if (zh->registerState == -1)
90 logf (LOG_LOG, "Reading register using state %d pid=%ld", state,
93 logf (LOG_LOG, "Register has changed state from %d to %d",
94 zh->registerState, state);
95 zh->registerChange = lastChange;
98 zebraExplain_close (zh->zei, 0, 0);
99 dict_close (zh->dict);
100 sortIdx_close (zh->sortIdx);
104 isc_close (zh->isamc);
105 rec_close (&zh->records);
107 bf_cache (zh->bfs, state ? res_get (zh->res, "shadow") : NULL);
108 zh->registerState = state;
109 zh->records = rec_open (zh->bfs, 0);
110 if (!(zh->dict = dict_open (zh->bfs, FNAME_DICT, 40, 0)))
112 logf (LOG_WARN, "dict_open");
115 if (!(zh->sortIdx = sortIdx_open (zh->bfs, 0)))
117 logf (LOG_WARN, "sortIdx_open");
122 if (!res_get_match (zh->res, "isam", "i", NULL))
124 if (!(zh->isamc = isc_open (zh->bfs, FNAME_ISAMC,
125 0, key_isamc_m(zh->res))))
127 logf (LOG_WARN, "isc_open");
134 if (!(zh->isam = is_open (zh->bfs, FNAME_ISAM, key_compare, 0,
135 sizeof (struct it_key), zh->res)))
137 logf (LOG_WARN, "is_open");
141 zh->zei = zebraExplain_open (zh->records, zh->dh, zh->res, 0, 0, 0);
146 static void zebra_register_unlock (ZebraHandle zh)
148 static int waitSec = -1;
152 logf (LOG_LOG, "user/system: %ld/%ld",
153 (long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
154 (long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
158 char *s = res_get (zh->res, "debugRequestWait");
169 if (zh->registerState != -1)
170 zebra_server_unlock (zh, zh->registerState);
173 ZebraHandle zebra_open (const char *configName)
175 ZebraHandle zh = xmalloc (sizeof(*zh));
177 if (!(zh->res = res_open (configName)))
179 logf (LOG_WARN, "Failed to read resources `%s'", configName);
182 zebra_server_lock_init (zh);
183 zh->dh = data1_create ();
184 zh->bfs = bfs_create (res_get (zh->res, "register"));
185 bf_lockDir (zh->bfs, res_get (zh->res, "lockDir"));
186 data1_set_tabpath (zh->dh, res_get(zh->res, "profilePath"));
188 zh->registerState = -1; /* trigger open of registers! */
189 zh->registerChange = 0;
190 zh->recTypes = recTypes_init (zh->dh);
191 recTypes_default_handlers (zh->recTypes);
194 zh->zebra_maps = zebra_maps_open (zh->res);
195 zh->rank_classes = NULL;
199 zebraRankInstall (zh, rank1_class);
201 if (!res_get (zh->res, "passwd"))
202 zh->passwd_db = NULL;
205 zh->passwd_db = passwd_db_open ();
207 logf (LOG_WARN|LOG_ERRNO, "passwd_db_open failed");
209 passwd_db_file (zh->passwd_db, res_get (zh->res, "passwd"));
214 void zebra_close (ZebraHandle zh)
218 resultSetDestroy (zh);
219 zebraExplain_close (zh->zei, 0, 0);
220 dict_close (zh->dict);
221 sortIdx_close (zh->sortIdx);
225 isc_close (zh->isamc);
226 rec_close (&zh->records);
227 zebra_register_unlock (zh);
229 recTypes_destroy (zh->recTypes);
230 zebra_maps_close (zh->zebra_maps);
231 zebraRankDestroy (zh);
232 bfs_destroy (zh->bfs);
233 data1_destroy (zh->dh);
234 zebra_server_lock_destroy (zh);
237 passwd_db_close (zh->passwd_db);
242 struct map_baseinfo {
248 char **new_basenames;
252 void map_basenames_func (void *vp, const char *name, const char *value)
254 struct map_baseinfo *p = vp;
256 char fromdb[128], todb[8][128];
259 sscanf (value, "%127s %127s %127s %127s %127s %127s %127s %127s %127s",
260 fromdb, todb[0], todb[1], todb[2], todb[3], todb[4],
261 todb[5], todb[6], todb[7]);
265 for (i = 0; i<p->num_bases; i++)
266 if (p->basenames[i] && !strcmp (p->basenames[i], fromdb))
269 for (i = 0; i < no; i++)
271 if (p->new_num_bases == p->new_num_max)
273 p->new_basenames[(p->new_num_bases)++] =
274 nmem_strdup (p->mem, todb[i]);
280 void map_basenames (ZebraHandle zh, ODR stream,
281 int *num_bases, char ***basenames)
283 struct map_baseinfo info;
284 struct map_baseinfo *p = &info;
288 info.num_bases = *num_bases;
289 info.basenames = *basenames;
290 info.new_num_max = 128;
291 info.new_num_bases = 0;
292 info.new_basenames = (char **)
293 odr_malloc (stream, sizeof(*info.new_basenames) * info.new_num_max);
294 info.mem = stream->mem;
296 res_trav (zh->res, "mapdb", &info, map_basenames_func);
298 for (i = 0; i<p->num_bases; i++)
299 if (p->basenames[i] && p->new_num_bases < p->new_num_max)
301 p->new_basenames[(p->new_num_bases)++] =
302 nmem_strdup (p->mem, p->basenames[i]);
304 *num_bases = info.new_num_bases;
305 *basenames = info.new_basenames;
306 for (i = 0; i<*num_bases; i++)
307 logf (LOG_LOG, "base %s", (*basenames)[i]);
310 void zebra_search_rpn (ZebraHandle zh, ODR stream, ODR decode,
311 Z_RPNQuery *query, int num_bases, char **basenames,
314 zebra_register_lock (zh);
316 zh->errString = NULL;
319 map_basenames (zh, stream, &num_bases, &basenames);
320 resultSetAddRPN (zh, stream, decode, query, num_bases, basenames, setname);
322 zebra_register_unlock (zh);
325 void zebra_records_retrieve (ZebraHandle zh, ODR stream,
326 const char *setname, Z_RecordComposition *comp,
327 oid_value input_format, int num_recs,
328 ZebraRetrievalRecord *recs)
334 zh->errString = NULL;
335 pos_array = xmalloc (num_recs * sizeof(*pos_array));
336 for (i = 0; i<num_recs; i++)
337 pos_array[i] = recs[i].position;
339 zebra_register_lock (zh);
341 poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
344 logf (LOG_DEBUG, "zebraPosSetCreate error");
346 zh->errString = nmem_strdup (stream->mem, setname);
350 for (i = 0; i<num_recs; i++)
356 sprintf (num_str, "%d", pos_array[i]);
358 zh->errString = nmem_strdup (stream->mem, num_str);
364 zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
365 stream, input_format, comp,
366 &recs[i].format, &recs[i].buf,
369 recs[i].errString = NULL;
372 zebraPosSetDestroy (zh, poset, num_recs);
374 zebra_register_unlock (zh);
378 void zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
379 oid_value attributeset,
380 int num_bases, char **basenames,
381 int *position, int *num_entries, ZebraScanEntry **entries,
385 zh->errString = NULL;
386 zebra_register_lock (zh);
387 map_basenames (zh, stream, &num_bases, &basenames);
388 rpn_scan (zh, stream, zapt, attributeset,
389 num_bases, basenames, position,
390 num_entries, entries, is_partial);
391 zebra_register_unlock (zh);
394 void zebra_sort (ZebraHandle zh, ODR stream,
395 int num_input_setnames, const char **input_setnames,
396 const char *output_setname, Z_SortKeySpecList *sort_sequence,
400 zh->errString = NULL;
401 zebra_register_lock (zh);
402 resultSetSort (zh, stream->mem, num_input_setnames, input_setnames,
403 output_setname, sort_sequence, sort_status);
404 zebra_register_unlock (zh);
407 int zebra_errCode (ZebraHandle zh)
412 const char *zebra_errString (ZebraHandle zh)
414 return diagbib1_str (zh->errCode);
417 char *zebra_errAdd (ZebraHandle zh)
419 return zh->errString;
422 int zebra_hits (ZebraHandle zh)
427 int zebra_auth (ZebraHandle zh, const char *user, const char *pass)
429 if (!zh->passwd_db || !passwd_db_auth (zh->passwd_db, user, pass))
434 void zebra_setDB (ZebraHandle zh, int num_bases, char **basenames)
439 void zebra_setRecordType (ZebraHandle zh, const char *type)
444 void zebra_setGroup (ZebraHandle zh, const char *group)
449 void zebra_admin (ZebraHandle zh, const char *command)