2 * Copyright (C) 1995-1998, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.9 1998-09-02 13:53:17 adam
8 * Extra parameter decode added to search routines to implement
11 * Revision 1.8 1998/08/24 17:29:23 adam
14 * Revision 1.7 1998/06/24 12:16:13 adam
15 * Support for relations on text operands. Open range support in
16 * DFA module (i.e. [-j], [g-]).
18 * Revision 1.6 1998/06/22 11:36:47 adam
19 * Added authentication check facility to zebra.
21 * Revision 1.5 1998/06/13 00:14:08 adam
24 * Revision 1.4 1998/06/12 12:22:12 adam
27 * Revision 1.3 1998/05/27 16:57:44 adam
28 * Zebra returns surrogate diagnostic for single records when
31 * Revision 1.2 1998/05/20 10:12:19 adam
32 * Implemented automatic EXPLAIN database maintenance.
33 * Modified Zebra to work with ASN.1 compiled version of YAZ.
35 * Revision 1.1 1998/03/05 08:45:13 adam
36 * New result set model and modular ranking system. Moved towards
37 * descent server API. System information stored as "SGML" records.
52 static int zebra_register_lock (ZebraHandle zh)
55 int state = zebra_server_lock_get_state(zh, &lastChange);
65 zebra_server_lock (zh, state);
69 if (zh->registerState == state)
71 if (zh->registerChange >= lastChange)
73 logf (LOG_LOG, "Register completely updated since last access");
75 else if (zh->registerState == -1)
76 logf (LOG_LOG, "Reading register using state %d pid=%ld", state,
79 logf (LOG_LOG, "Register has changed state from %d to %d",
80 zh->registerState, state);
81 zh->registerChange = lastChange;
84 zebraExplain_close (zh->zei, 0, 0);
85 dict_close (zh->dict);
86 sortIdx_close (zh->sortIdx);
90 isc_close (zh->isamc);
91 rec_close (&zh->records);
93 bf_cache (zh->bfs, state ? res_get (zh->res, "shadow") : NULL);
94 zh->registerState = state;
95 zh->records = rec_open (zh->bfs, 0);
96 if (!(zh->dict = dict_open (zh->bfs, FNAME_DICT, 40, 0)))
98 logf (LOG_WARN, "dict_open");
101 if (!(zh->sortIdx = sortIdx_open (zh->bfs, 0)))
103 logf (LOG_WARN, "sortIdx_open");
108 if (!res_get_match (zh->res, "isam", "i", NULL))
110 if (!(zh->isamc = isc_open (zh->bfs, FNAME_ISAMC,
111 0, key_isamc_m(zh->res))))
113 logf (LOG_WARN, "isc_open");
120 if (!(zh->isam = is_open (zh->bfs, FNAME_ISAM, key_compare, 0,
121 sizeof (struct it_key), zh->res)))
123 logf (LOG_WARN, "is_open");
127 zh->zei = zebraExplain_open (zh->records, zh->dh, zh->res, 0, 0, 0);
132 static void zebra_register_unlock (ZebraHandle zh)
134 static int waitSec = -1;
138 logf (LOG_LOG, "user/system: %ld/%ld",
139 (long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
140 (long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
144 char *s = res_get (zh->res, "debugRequestWait");
155 if (zh->registerState != -1)
156 zebra_server_unlock (zh, zh->registerState);
159 ZebraHandle zebra_open (const char *configName)
161 ZebraHandle zh = xmalloc (sizeof(*zh));
163 if (!(zh->res = res_open (configName)))
165 logf (LOG_WARN, "Failed to read resources `%s'", configName);
168 zebra_server_lock_init (zh);
169 zh->dh = data1_create ();
170 zh->bfs = bfs_create (res_get (zh->res, "register"));
171 bf_lockDir (zh->bfs, res_get (zh->res, "lockDir"));
172 data1_set_tabpath (zh->dh, res_get(zh->res, "profilePath"));
174 zh->registerState = -1; /* trigger open of registers! */
175 zh->registerChange = 0;
178 zh->zebra_maps = zebra_maps_open (zh->res);
179 zh->rank_classes = NULL;
183 zebraRankInstall (zh, rank1_class);
185 if (!res_get (zh->res, "passwd"))
186 zh->passwd_db = NULL;
189 zh->passwd_db = passwd_db_open ();
191 logf (LOG_WARN|LOG_ERRNO, "passwd_db_open failed");
193 passwd_db_file (zh->passwd_db, res_get (zh->res, "passwd"));
198 void zebra_close (ZebraHandle zh)
202 resultSetDestroy (zh);
203 zebraExplain_close (zh->zei, 0, 0);
204 dict_close (zh->dict);
205 sortIdx_close (zh->sortIdx);
209 isc_close (zh->isamc);
210 rec_close (&zh->records);
211 zebra_register_unlock (zh);
213 zebra_maps_close (zh->zebra_maps);
214 zebraRankDestroy (zh);
215 bfs_destroy (zh->bfs);
216 data1_destroy (zh->dh);
217 zebra_server_lock_destroy (zh);
220 passwd_db_close (zh->passwd_db);
225 void zebra_search_rpn (ZebraHandle zh, ODR stream, ODR decode,
226 Z_RPNQuery *query, int num_bases, char **basenames,
229 zebra_register_lock (zh);
231 zh->errString = NULL;
233 rpn_search (zh, stream, decode, query, num_bases, basenames, setname);
234 zebra_register_unlock (zh);
237 void zebra_records_retrieve (ZebraHandle zh, ODR stream,
238 const char *setname, Z_RecordComposition *comp,
239 oid_value input_format, int num_recs,
240 ZebraRetrievalRecord *recs)
246 zh->errString = NULL;
247 pos_array = xmalloc (num_recs * sizeof(*pos_array));
248 for (i = 0; i<num_recs; i++)
249 pos_array[i] = recs[i].position;
251 zebra_register_lock (zh);
253 poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
256 logf (LOG_DEBUG, "zebraPosSetCreate error");
261 for (i = 0; i<num_recs; i++)
266 logf (LOG_DEBUG, "Out of range. pos=%d", pos_array[i]);
271 zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
272 stream, input_format, comp,
273 &recs[i].format, &recs[i].buf,
276 recs[i].errString = NULL;
279 zebraPosSetDestroy (zh, poset, num_recs);
281 zebra_register_unlock (zh);
285 void zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
286 oid_value attributeset,
287 int num_bases, char **basenames,
288 int *position, int *num_entries, ZebraScanEntry **entries,
292 zh->errString = NULL;
293 zebra_register_lock (zh);
294 rpn_scan (zh, stream, zapt, attributeset,
295 num_bases, basenames, position,
296 num_entries, entries, is_partial);
297 zebra_register_unlock (zh);
300 void zebra_sort (ZebraHandle zh, ODR stream,
301 int num_input_setnames, const char **input_setnames,
302 const char *output_setname, Z_SortKeySpecList *sort_sequence,
306 zh->errString = NULL;
307 zebra_register_lock (zh);
308 resultSetSort (zh, stream, num_input_setnames, input_setnames,
309 output_setname, sort_sequence, sort_status);
310 zebra_register_unlock (zh);
313 int zebra_errCode (ZebraHandle zh)
318 const char *zebra_errString (ZebraHandle zh)
320 return diagbib1_str (zh->errCode);
323 char *zebra_errAdd (ZebraHandle zh)
325 return zh->errString;
328 int zebra_hits (ZebraHandle zh)
333 int zebra_auth (ZebraHandle zh, const char *user, const char *pass)
335 if (!zh->passwd_db || !passwd_db_auth (zh->passwd_db, user, pass))
340 void zebra_setDB (ZebraHandle zh, int num_bases, char **basenames)
345 void zebra_setRecordType (ZebraHandle zh, const char *type)
350 void zebra_setGroup (ZebraHandle zh, const char *group)
355 void zebra_admin (ZebraHandle zh, const char *command)