2 * Copyright (C) 1995-1998, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.12 1998-11-16 10:18:10 adam
8 * Better error reporting for result sets.
10 * Revision 1.11 1998/10/16 08:14:34 adam
11 * Updated record control system.
13 * Revision 1.10 1998/09/22 10:03:42 adam
14 * Changed result sets to be persistent in the sense that they can
15 * be re-searched if needed.
16 * Fixed memory leak in rsm_or.
18 * Revision 1.9 1998/09/02 13:53:17 adam
19 * Extra parameter decode added to search routines to implement
22 * Revision 1.8 1998/08/24 17:29:23 adam
25 * Revision 1.7 1998/06/24 12:16:13 adam
26 * Support for relations on text operands. Open range support in
27 * DFA module (i.e. [-j], [g-]).
29 * Revision 1.6 1998/06/22 11:36:47 adam
30 * Added authentication check facility to zebra.
32 * Revision 1.5 1998/06/13 00:14:08 adam
35 * Revision 1.4 1998/06/12 12:22:12 adam
38 * Revision 1.3 1998/05/27 16:57:44 adam
39 * Zebra returns surrogate diagnostic for single records when
42 * Revision 1.2 1998/05/20 10:12:19 adam
43 * Implemented automatic EXPLAIN database maintenance.
44 * Modified Zebra to work with ASN.1 compiled version of YAZ.
46 * Revision 1.1 1998/03/05 08:45:13 adam
47 * New result set model and modular ranking system. Moved towards
48 * descent server API. System information stored as "SGML" records.
63 static int zebra_register_lock (ZebraHandle zh)
66 int state = zebra_server_lock_get_state(zh, &lastChange);
76 zebra_server_lock (zh, state);
80 if (zh->registerState == state)
82 if (zh->registerChange >= lastChange)
84 logf (LOG_LOG, "Register completely updated since last access");
86 else if (zh->registerState == -1)
87 logf (LOG_LOG, "Reading register using state %d pid=%ld", state,
90 logf (LOG_LOG, "Register has changed state from %d to %d",
91 zh->registerState, state);
92 zh->registerChange = lastChange;
95 zebraExplain_close (zh->zei, 0, 0);
96 dict_close (zh->dict);
97 sortIdx_close (zh->sortIdx);
101 isc_close (zh->isamc);
102 rec_close (&zh->records);
104 bf_cache (zh->bfs, state ? res_get (zh->res, "shadow") : NULL);
105 zh->registerState = state;
106 zh->records = rec_open (zh->bfs, 0);
107 if (!(zh->dict = dict_open (zh->bfs, FNAME_DICT, 40, 0)))
109 logf (LOG_WARN, "dict_open");
112 if (!(zh->sortIdx = sortIdx_open (zh->bfs, 0)))
114 logf (LOG_WARN, "sortIdx_open");
119 if (!res_get_match (zh->res, "isam", "i", NULL))
121 if (!(zh->isamc = isc_open (zh->bfs, FNAME_ISAMC,
122 0, key_isamc_m(zh->res))))
124 logf (LOG_WARN, "isc_open");
131 if (!(zh->isam = is_open (zh->bfs, FNAME_ISAM, key_compare, 0,
132 sizeof (struct it_key), zh->res)))
134 logf (LOG_WARN, "is_open");
138 zh->zei = zebraExplain_open (zh->records, zh->dh, zh->res, 0, 0, 0);
143 static void zebra_register_unlock (ZebraHandle zh)
145 static int waitSec = -1;
149 logf (LOG_LOG, "user/system: %ld/%ld",
150 (long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
151 (long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
155 char *s = res_get (zh->res, "debugRequestWait");
166 if (zh->registerState != -1)
167 zebra_server_unlock (zh, zh->registerState);
170 ZebraHandle zebra_open (const char *configName)
172 ZebraHandle zh = xmalloc (sizeof(*zh));
174 if (!(zh->res = res_open (configName)))
176 logf (LOG_WARN, "Failed to read resources `%s'", configName);
179 zebra_server_lock_init (zh);
180 zh->dh = data1_create ();
181 zh->bfs = bfs_create (res_get (zh->res, "register"));
182 bf_lockDir (zh->bfs, res_get (zh->res, "lockDir"));
183 data1_set_tabpath (zh->dh, res_get(zh->res, "profilePath"));
185 zh->registerState = -1; /* trigger open of registers! */
186 zh->registerChange = 0;
187 zh->recTypes = recTypes_init (zh->dh);
188 recTypes_default_handlers (zh->recTypes);
191 zh->zebra_maps = zebra_maps_open (zh->res);
192 zh->rank_classes = NULL;
196 zebraRankInstall (zh, rank1_class);
198 if (!res_get (zh->res, "passwd"))
199 zh->passwd_db = NULL;
202 zh->passwd_db = passwd_db_open ();
204 logf (LOG_WARN|LOG_ERRNO, "passwd_db_open failed");
206 passwd_db_file (zh->passwd_db, res_get (zh->res, "passwd"));
211 void zebra_close (ZebraHandle zh)
215 resultSetDestroy (zh);
216 zebraExplain_close (zh->zei, 0, 0);
217 dict_close (zh->dict);
218 sortIdx_close (zh->sortIdx);
222 isc_close (zh->isamc);
223 rec_close (&zh->records);
224 zebra_register_unlock (zh);
226 recTypes_destroy (zh->recTypes);
227 zebra_maps_close (zh->zebra_maps);
228 zebraRankDestroy (zh);
229 bfs_destroy (zh->bfs);
230 data1_destroy (zh->dh);
231 zebra_server_lock_destroy (zh);
234 passwd_db_close (zh->passwd_db);
239 void zebra_search_rpn (ZebraHandle zh, ODR stream, ODR decode,
240 Z_RPNQuery *query, int num_bases, char **basenames,
243 zebra_register_lock (zh);
245 zh->errString = NULL;
248 resultSetAddRPN (zh, stream, decode, query, num_bases, basenames, setname);
250 zebra_register_unlock (zh);
253 void zebra_records_retrieve (ZebraHandle zh, ODR stream,
254 const char *setname, Z_RecordComposition *comp,
255 oid_value input_format, int num_recs,
256 ZebraRetrievalRecord *recs)
262 zh->errString = NULL;
263 pos_array = xmalloc (num_recs * sizeof(*pos_array));
264 for (i = 0; i<num_recs; i++)
265 pos_array[i] = recs[i].position;
267 zebra_register_lock (zh);
269 poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
272 logf (LOG_DEBUG, "zebraPosSetCreate error");
274 zh->errString = nmem_strdup (stream->mem, setname);
278 for (i = 0; i<num_recs; i++)
284 sprintf (num_str, "%d", pos_array[i]);
286 zh->errString = nmem_strdup (stream->mem, num_str);
292 zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
293 stream, input_format, comp,
294 &recs[i].format, &recs[i].buf,
297 recs[i].errString = NULL;
300 zebraPosSetDestroy (zh, poset, num_recs);
302 zebra_register_unlock (zh);
306 void zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
307 oid_value attributeset,
308 int num_bases, char **basenames,
309 int *position, int *num_entries, ZebraScanEntry **entries,
313 zh->errString = NULL;
314 zebra_register_lock (zh);
315 rpn_scan (zh, stream, zapt, attributeset,
316 num_bases, basenames, position,
317 num_entries, entries, is_partial);
318 zebra_register_unlock (zh);
321 void zebra_sort (ZebraHandle zh, ODR stream,
322 int num_input_setnames, const char **input_setnames,
323 const char *output_setname, Z_SortKeySpecList *sort_sequence,
327 zh->errString = NULL;
328 zebra_register_lock (zh);
329 resultSetSort (zh, stream->mem, num_input_setnames, input_setnames,
330 output_setname, sort_sequence, sort_status);
331 zebra_register_unlock (zh);
334 int zebra_errCode (ZebraHandle zh)
339 const char *zebra_errString (ZebraHandle zh)
341 return diagbib1_str (zh->errCode);
344 char *zebra_errAdd (ZebraHandle zh)
346 return zh->errString;
349 int zebra_hits (ZebraHandle zh)
354 int zebra_auth (ZebraHandle zh, const char *user, const char *pass)
356 if (!zh->passwd_db || !passwd_db_auth (zh->passwd_db, user, pass))
361 void zebra_setDB (ZebraHandle zh, int num_bases, char **basenames)
366 void zebra_setRecordType (ZebraHandle zh, const char *type)
371 void zebra_setGroup (ZebraHandle zh, const char *group)
376 void zebra_admin (ZebraHandle zh, const char *command)