2 * Copyright (C) 1995-1998, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.10 1998-09-22 10:03:42 adam
8 * Changed result sets to be persistent in the sense that they can
9 * be re-searched if needed.
10 * Fixed memory leak in rsm_or.
12 * Revision 1.9 1998/09/02 13:53:17 adam
13 * Extra parameter decode added to search routines to implement
16 * Revision 1.8 1998/08/24 17:29:23 adam
19 * Revision 1.7 1998/06/24 12:16:13 adam
20 * Support for relations on text operands. Open range support in
21 * DFA module (i.e. [-j], [g-]).
23 * Revision 1.6 1998/06/22 11:36:47 adam
24 * Added authentication check facility to zebra.
26 * Revision 1.5 1998/06/13 00:14:08 adam
29 * Revision 1.4 1998/06/12 12:22:12 adam
32 * Revision 1.3 1998/05/27 16:57:44 adam
33 * Zebra returns surrogate diagnostic for single records when
36 * Revision 1.2 1998/05/20 10:12:19 adam
37 * Implemented automatic EXPLAIN database maintenance.
38 * Modified Zebra to work with ASN.1 compiled version of YAZ.
40 * Revision 1.1 1998/03/05 08:45:13 adam
41 * New result set model and modular ranking system. Moved towards
42 * descent server API. System information stored as "SGML" records.
57 static int zebra_register_lock (ZebraHandle zh)
60 int state = zebra_server_lock_get_state(zh, &lastChange);
70 zebra_server_lock (zh, state);
74 if (zh->registerState == state)
76 if (zh->registerChange >= lastChange)
78 logf (LOG_LOG, "Register completely updated since last access");
80 else if (zh->registerState == -1)
81 logf (LOG_LOG, "Reading register using state %d pid=%ld", state,
84 logf (LOG_LOG, "Register has changed state from %d to %d",
85 zh->registerState, state);
86 zh->registerChange = lastChange;
89 zebraExplain_close (zh->zei, 0, 0);
90 dict_close (zh->dict);
91 sortIdx_close (zh->sortIdx);
95 isc_close (zh->isamc);
96 rec_close (&zh->records);
98 bf_cache (zh->bfs, state ? res_get (zh->res, "shadow") : NULL);
99 zh->registerState = state;
100 zh->records = rec_open (zh->bfs, 0);
101 if (!(zh->dict = dict_open (zh->bfs, FNAME_DICT, 40, 0)))
103 logf (LOG_WARN, "dict_open");
106 if (!(zh->sortIdx = sortIdx_open (zh->bfs, 0)))
108 logf (LOG_WARN, "sortIdx_open");
113 if (!res_get_match (zh->res, "isam", "i", NULL))
115 if (!(zh->isamc = isc_open (zh->bfs, FNAME_ISAMC,
116 0, key_isamc_m(zh->res))))
118 logf (LOG_WARN, "isc_open");
125 if (!(zh->isam = is_open (zh->bfs, FNAME_ISAM, key_compare, 0,
126 sizeof (struct it_key), zh->res)))
128 logf (LOG_WARN, "is_open");
132 zh->zei = zebraExplain_open (zh->records, zh->dh, zh->res, 0, 0, 0);
137 static void zebra_register_unlock (ZebraHandle zh)
139 static int waitSec = -1;
143 logf (LOG_LOG, "user/system: %ld/%ld",
144 (long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
145 (long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
149 char *s = res_get (zh->res, "debugRequestWait");
160 if (zh->registerState != -1)
161 zebra_server_unlock (zh, zh->registerState);
164 ZebraHandle zebra_open (const char *configName)
166 ZebraHandle zh = xmalloc (sizeof(*zh));
168 if (!(zh->res = res_open (configName)))
170 logf (LOG_WARN, "Failed to read resources `%s'", configName);
173 zebra_server_lock_init (zh);
174 zh->dh = data1_create ();
175 zh->bfs = bfs_create (res_get (zh->res, "register"));
176 bf_lockDir (zh->bfs, res_get (zh->res, "lockDir"));
177 data1_set_tabpath (zh->dh, res_get(zh->res, "profilePath"));
179 zh->registerState = -1; /* trigger open of registers! */
180 zh->registerChange = 0;
183 zh->zebra_maps = zebra_maps_open (zh->res);
184 zh->rank_classes = NULL;
188 zebraRankInstall (zh, rank1_class);
190 if (!res_get (zh->res, "passwd"))
191 zh->passwd_db = NULL;
194 zh->passwd_db = passwd_db_open ();
196 logf (LOG_WARN|LOG_ERRNO, "passwd_db_open failed");
198 passwd_db_file (zh->passwd_db, res_get (zh->res, "passwd"));
203 void zebra_close (ZebraHandle zh)
207 resultSetDestroy (zh);
208 zebraExplain_close (zh->zei, 0, 0);
209 dict_close (zh->dict);
210 sortIdx_close (zh->sortIdx);
214 isc_close (zh->isamc);
215 rec_close (&zh->records);
216 zebra_register_unlock (zh);
218 zebra_maps_close (zh->zebra_maps);
219 zebraRankDestroy (zh);
220 bfs_destroy (zh->bfs);
221 data1_destroy (zh->dh);
222 zebra_server_lock_destroy (zh);
225 passwd_db_close (zh->passwd_db);
230 void zebra_search_rpn (ZebraHandle zh, ODR stream, ODR decode,
231 Z_RPNQuery *query, int num_bases, char **basenames,
234 zebra_register_lock (zh);
236 zh->errString = NULL;
239 resultSetAddRPN (zh, stream, decode, query, num_bases, basenames, setname);
241 zebra_register_unlock (zh);
244 void zebra_records_retrieve (ZebraHandle zh, ODR stream,
245 const char *setname, Z_RecordComposition *comp,
246 oid_value input_format, int num_recs,
247 ZebraRetrievalRecord *recs)
253 zh->errString = NULL;
254 pos_array = xmalloc (num_recs * sizeof(*pos_array));
255 for (i = 0; i<num_recs; i++)
256 pos_array[i] = recs[i].position;
258 zebra_register_lock (zh);
260 poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
263 logf (LOG_DEBUG, "zebraPosSetCreate error");
268 for (i = 0; i<num_recs; i++)
273 logf (LOG_DEBUG, "Out of range. pos=%d", pos_array[i]);
278 zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
279 stream, input_format, comp,
280 &recs[i].format, &recs[i].buf,
283 recs[i].errString = NULL;
286 zebraPosSetDestroy (zh, poset, num_recs);
288 zebra_register_unlock (zh);
292 void zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
293 oid_value attributeset,
294 int num_bases, char **basenames,
295 int *position, int *num_entries, ZebraScanEntry **entries,
299 zh->errString = NULL;
300 zebra_register_lock (zh);
301 rpn_scan (zh, stream, zapt, attributeset,
302 num_bases, basenames, position,
303 num_entries, entries, is_partial);
304 zebra_register_unlock (zh);
307 void zebra_sort (ZebraHandle zh, ODR stream,
308 int num_input_setnames, const char **input_setnames,
309 const char *output_setname, Z_SortKeySpecList *sort_sequence,
313 zh->errString = NULL;
314 zebra_register_lock (zh);
315 resultSetSort (zh, stream->mem, num_input_setnames, input_setnames,
316 output_setname, sort_sequence, sort_status);
317 zebra_register_unlock (zh);
320 int zebra_errCode (ZebraHandle zh)
325 const char *zebra_errString (ZebraHandle zh)
327 return diagbib1_str (zh->errCode);
330 char *zebra_errAdd (ZebraHandle zh)
332 return zh->errString;
335 int zebra_hits (ZebraHandle zh)
340 int zebra_auth (ZebraHandle zh, const char *user, const char *pass)
342 if (!zh->passwd_db || !passwd_db_auth (zh->passwd_db, user, pass))
347 void zebra_setDB (ZebraHandle zh, int num_bases, char **basenames)
352 void zebra_setRecordType (ZebraHandle zh, const char *type)
357 void zebra_setGroup (ZebraHandle zh, const char *group)
362 void zebra_admin (ZebraHandle zh, const char *command)