2 * Copyright (C) 1995-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.16 1999-02-19 10:38:30 adam
8 * Implemented chdir-setting.
10 * Revision 1.15 1999/02/17 12:18:12 adam
11 * Fixed zebra_close so that a NULL pointer is ignored.
13 * Revision 1.14 1999/02/02 14:51:11 adam
14 * Updated WIN32 code specific sections. Changed header.
16 * Revision 1.13 1998/12/16 12:23:30 adam
17 * Added facility for database name mapping using resource mapdb.
19 * Revision 1.12 1998/11/16 10:18:10 adam
20 * Better error reporting for result sets.
22 * Revision 1.11 1998/10/16 08:14:34 adam
23 * Updated record control system.
25 * Revision 1.10 1998/09/22 10:03:42 adam
26 * Changed result sets to be persistent in the sense that they can
27 * be re-searched if needed.
28 * Fixed memory leak in rsm_or.
30 * Revision 1.9 1998/09/02 13:53:17 adam
31 * Extra parameter decode added to search routines to implement
34 * Revision 1.8 1998/08/24 17:29:23 adam
37 * Revision 1.7 1998/06/24 12:16:13 adam
38 * Support for relations on text operands. Open range support in
39 * DFA module (i.e. [-j], [g-]).
41 * Revision 1.6 1998/06/22 11:36:47 adam
42 * Added authentication check facility to zebra.
44 * Revision 1.5 1998/06/13 00:14:08 adam
47 * Revision 1.4 1998/06/12 12:22:12 adam
50 * Revision 1.3 1998/05/27 16:57:44 adam
51 * Zebra returns surrogate diagnostic for single records when
54 * Revision 1.2 1998/05/20 10:12:19 adam
55 * Implemented automatic EXPLAIN database maintenance.
56 * Modified Zebra to work with ASN.1 compiled version of YAZ.
58 * Revision 1.1 1998/03/05 08:45:13 adam
59 * New result set model and modular ranking system. Moved towards
60 * descent server API. System information stored as "SGML" records.
76 static void zebra_chdir (ZebraHandle zh)
78 const char *dir = res_get (zh->res, "chdir");
81 logf (LOG_DEBUG, "chdir %s", dir);
88 static int zebra_register_lock (ZebraHandle zh)
95 state = zebra_server_lock_get_state(zh, &lastChange);
105 zebra_server_lock (zh, state);
109 if (zh->registerState == state)
111 if (zh->registerChange >= lastChange)
113 logf (LOG_LOG, "Register completely updated since last access");
115 else if (zh->registerState == -1)
116 logf (LOG_LOG, "Reading register using state %d pid=%ld", state,
119 logf (LOG_LOG, "Register has changed state from %d to %d",
120 zh->registerState, state);
121 zh->registerChange = lastChange;
124 zebraExplain_close (zh->zei, 0, 0);
125 dict_close (zh->dict);
126 sortIdx_close (zh->sortIdx);
130 isc_close (zh->isamc);
131 rec_close (&zh->records);
133 bf_cache (zh->bfs, state ? res_get (zh->res, "shadow") : NULL);
134 zh->registerState = state;
135 zh->records = rec_open (zh->bfs, 0);
136 if (!(zh->dict = dict_open (zh->bfs, FNAME_DICT, 40, 0)))
138 logf (LOG_WARN, "dict_open");
141 if (!(zh->sortIdx = sortIdx_open (zh->bfs, 0)))
143 logf (LOG_WARN, "sortIdx_open");
148 if (!res_get_match (zh->res, "isam", "i", NULL))
150 if (!(zh->isamc = isc_open (zh->bfs, FNAME_ISAMC,
151 0, key_isamc_m(zh->res))))
153 logf (LOG_WARN, "isc_open");
160 if (!(zh->isam = is_open (zh->bfs, FNAME_ISAM, key_compare, 0,
161 sizeof (struct it_key), zh->res)))
163 logf (LOG_WARN, "is_open");
167 zh->zei = zebraExplain_open (zh->records, zh->dh, zh->res, 0, 0, 0);
172 static void zebra_register_unlock (ZebraHandle zh)
174 static int waitSec = -1;
178 logf (LOG_LOG, "user/system: %ld/%ld",
179 (long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
180 (long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
184 char *s = res_get (zh->res, "debugRequestWait");
195 if (zh->registerState != -1)
196 zebra_server_unlock (zh, zh->registerState);
199 ZebraHandle zebra_open (const char *configName)
201 ZebraHandle zh = xmalloc (sizeof(*zh));
203 if (!(zh->res = res_open (configName)))
205 logf (LOG_WARN, "Failed to read resources `%s'", configName);
209 zebra_server_lock_init (zh);
210 zh->dh = data1_create ();
211 zh->bfs = bfs_create (res_get (zh->res, "register"));
212 bf_lockDir (zh->bfs, res_get (zh->res, "lockDir"));
213 data1_set_tabpath (zh->dh, res_get(zh->res, "profilePath"));
215 zh->registerState = -1; /* trigger open of registers! */
216 zh->registerChange = 0;
217 zh->recTypes = recTypes_init (zh->dh);
218 recTypes_default_handlers (zh->recTypes);
221 zh->zebra_maps = zebra_maps_open (zh->res);
222 zh->rank_classes = NULL;
226 zebraRankInstall (zh, rank1_class);
228 if (!res_get (zh->res, "passwd"))
229 zh->passwd_db = NULL;
232 zh->passwd_db = passwd_db_open ();
234 logf (LOG_WARN|LOG_ERRNO, "passwd_db_open failed");
236 passwd_db_file (zh->passwd_db, res_get (zh->res, "passwd"));
241 void zebra_close (ZebraHandle zh)
248 resultSetDestroy (zh);
249 zebraExplain_close (zh->zei, 0, 0);
250 dict_close (zh->dict);
251 sortIdx_close (zh->sortIdx);
255 isc_close (zh->isamc);
256 rec_close (&zh->records);
257 zebra_register_unlock (zh);
259 recTypes_destroy (zh->recTypes);
260 zebra_maps_close (zh->zebra_maps);
261 zebraRankDestroy (zh);
262 bfs_destroy (zh->bfs);
263 data1_destroy (zh->dh);
264 zebra_server_lock_destroy (zh);
267 passwd_db_close (zh->passwd_db);
272 struct map_baseinfo {
278 char **new_basenames;
282 void map_basenames_func (void *vp, const char *name, const char *value)
284 struct map_baseinfo *p = vp;
286 char fromdb[128], todb[8][128];
289 sscanf (value, "%127s %127s %127s %127s %127s %127s %127s %127s %127s",
290 fromdb, todb[0], todb[1], todb[2], todb[3], todb[4],
291 todb[5], todb[6], todb[7]);
295 for (i = 0; i<p->num_bases; i++)
296 if (p->basenames[i] && !strcmp (p->basenames[i], fromdb))
299 for (i = 0; i < no; i++)
301 if (p->new_num_bases == p->new_num_max)
303 p->new_basenames[(p->new_num_bases)++] =
304 nmem_strdup (p->mem, todb[i]);
310 void map_basenames (ZebraHandle zh, ODR stream,
311 int *num_bases, char ***basenames)
313 struct map_baseinfo info;
314 struct map_baseinfo *p = &info;
318 info.num_bases = *num_bases;
319 info.basenames = *basenames;
320 info.new_num_max = 128;
321 info.new_num_bases = 0;
322 info.new_basenames = (char **)
323 odr_malloc (stream, sizeof(*info.new_basenames) * info.new_num_max);
324 info.mem = stream->mem;
326 res_trav (zh->res, "mapdb", &info, map_basenames_func);
328 for (i = 0; i<p->num_bases; i++)
329 if (p->basenames[i] && p->new_num_bases < p->new_num_max)
331 p->new_basenames[(p->new_num_bases)++] =
332 nmem_strdup (p->mem, p->basenames[i]);
334 *num_bases = info.new_num_bases;
335 *basenames = info.new_basenames;
336 for (i = 0; i<*num_bases; i++)
337 logf (LOG_LOG, "base %s", (*basenames)[i]);
340 void zebra_search_rpn (ZebraHandle zh, ODR stream, ODR decode,
341 Z_RPNQuery *query, int num_bases, char **basenames,
344 zebra_register_lock (zh);
346 zh->errString = NULL;
349 map_basenames (zh, stream, &num_bases, &basenames);
350 resultSetAddRPN (zh, stream, decode, query, num_bases, basenames, setname);
352 zebra_register_unlock (zh);
355 void zebra_records_retrieve (ZebraHandle zh, ODR stream,
356 const char *setname, Z_RecordComposition *comp,
357 oid_value input_format, int num_recs,
358 ZebraRetrievalRecord *recs)
364 zh->errString = NULL;
365 pos_array = xmalloc (num_recs * sizeof(*pos_array));
366 for (i = 0; i<num_recs; i++)
367 pos_array[i] = recs[i].position;
369 zebra_register_lock (zh);
371 poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
374 logf (LOG_DEBUG, "zebraPosSetCreate error");
376 zh->errString = nmem_strdup (stream->mem, setname);
380 for (i = 0; i<num_recs; i++)
386 sprintf (num_str, "%d", pos_array[i]);
388 zh->errString = nmem_strdup (stream->mem, num_str);
394 zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
395 stream, input_format, comp,
396 &recs[i].format, &recs[i].buf,
399 recs[i].errString = NULL;
402 zebraPosSetDestroy (zh, poset, num_recs);
404 zebra_register_unlock (zh);
408 void zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
409 oid_value attributeset,
410 int num_bases, char **basenames,
411 int *position, int *num_entries, ZebraScanEntry **entries,
415 zh->errString = NULL;
416 zebra_register_lock (zh);
417 map_basenames (zh, stream, &num_bases, &basenames);
418 rpn_scan (zh, stream, zapt, attributeset,
419 num_bases, basenames, position,
420 num_entries, entries, is_partial);
421 zebra_register_unlock (zh);
424 void zebra_sort (ZebraHandle zh, ODR stream,
425 int num_input_setnames, const char **input_setnames,
426 const char *output_setname, Z_SortKeySpecList *sort_sequence,
430 zh->errString = NULL;
431 zebra_register_lock (zh);
432 resultSetSort (zh, stream->mem, num_input_setnames, input_setnames,
433 output_setname, sort_sequence, sort_status);
434 zebra_register_unlock (zh);
437 int zebra_errCode (ZebraHandle zh)
442 const char *zebra_errString (ZebraHandle zh)
444 return diagbib1_str (zh->errCode);
447 char *zebra_errAdd (ZebraHandle zh)
449 return zh->errString;
452 int zebra_hits (ZebraHandle zh)
457 int zebra_auth (ZebraHandle zh, const char *user, const char *pass)
459 if (!zh->passwd_db || !passwd_db_auth (zh->passwd_db, user, pass))
464 void zebra_setDB (ZebraHandle zh, int num_bases, char **basenames)
469 void zebra_setRecordType (ZebraHandle zh, const char *type)
474 void zebra_setGroup (ZebraHandle zh, const char *group)
479 void zebra_admin (ZebraHandle zh, const char *command)