2 * Copyright (C) 1995-1998, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.4 1998-06-12 12:22:12 adam
10 * Revision 1.3 1998/05/27 16:57:44 adam
11 * Zebra returns surrogate diagnostic for single records when
14 * Revision 1.2 1998/05/20 10:12:19 adam
15 * Implemented automatic EXPLAIN database maintenance.
16 * Modified Zebra to work with ASN.1 compiled version of YAZ.
18 * Revision 1.1 1998/03/05 08:45:13 adam
19 * New result set model and modular ranking system. Moved towards
20 * descent server API. System information stored as "SGML" records.
35 static int zebra_register_lock (ZebraHandle zh)
38 int state = zebra_server_lock_get_state(zh, &lastChange);
48 zebra_server_lock (zh, state);
52 if (zh->registerState == state)
54 if (zh->registerChange >= lastChange)
56 logf (LOG_LOG, "Register completely updated since last access");
58 else if (zh->registerState == -1)
59 logf (LOG_LOG, "Reading register using state %d pid=%ld", state,
62 logf (LOG_LOG, "Register has changed state from %d to %d",
63 zh->registerState, state);
64 zh->registerChange = lastChange;
67 zebraExplain_close (zh->zei, 0, 0);
68 dict_close (zh->dict);
69 sortIdx_close (zh->sortIdx);
73 isc_close (zh->isamc);
74 rec_close (&zh->records);
76 bf_cache (zh->bfs, state ? res_get (zh->res, "shadow") : NULL);
77 zh->registerState = state;
78 zh->records = rec_open (zh->bfs, 0);
79 if (!(zh->dict = dict_open (zh->bfs, FNAME_DICT, 40, 0)))
81 if (!(zh->sortIdx = sortIdx_open (zh->bfs, 0)))
85 if (!res_get_match (zh->res, "isam", "i", NULL))
87 if (!(zh->isamc = isc_open (zh->bfs, FNAME_ISAMC,
88 0, key_isamc_m(zh->res))))
94 if (!(zh->isam = is_open (zh->bfs, FNAME_ISAM, key_compare, 0,
95 sizeof (struct it_key), zh->res)))
98 zh->zei = zebraExplain_open (zh->records, zh->dh, zh->res, 0, 0, 0);
103 static void zebra_register_unlock (ZebraHandle zh)
105 static int waitSec = -1;
109 logf (LOG_LOG, "user/system: %ld/%ld",
110 (long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
111 (long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
115 char *s = res_get (zh->res, "debugRequestWait");
126 if (zh->registerState != -1)
127 zebra_server_unlock (zh, zh->registerState);
130 ZebraHandle zebra_open (const char *configName)
132 ZebraHandle zh = xmalloc (sizeof(*zh));
134 if (!(zh->res = res_open (configName)))
136 logf (LOG_WARN, "Failed to read resources `%s'", configName);
139 zebra_server_lock_init (zh);
140 zh->dh = data1_create ();
141 zh->bfs = bfs_create (res_get (zh->res, "register"));
142 bf_lockDir (zh->bfs, res_get (zh->res, "lockDir"));
143 data1_set_tabpath (zh->dh, res_get(zh->res, "profilePath"));
145 zh->registerState = -1; /* trigger open of registers! */
146 zh->registerChange = 0;
149 zh->zebra_maps = zebra_maps_open (zh->res);
150 zh->rank_classes = NULL;
152 zebraRankInstall (zh, rank1_class);
156 void zebra_close (ZebraHandle zh)
160 resultSetDestroy (zh);
161 zebraExplain_close (zh->zei, 0, 0);
162 dict_close (zh->dict);
163 sortIdx_close (zh->sortIdx);
167 isc_close (zh->isamc);
168 rec_close (&zh->records);
169 zebra_register_unlock (zh);
171 zebra_maps_close (zh->zebra_maps);
172 zebraRankDestroy (zh);
173 bfs_destroy (zh->bfs);
174 data1_destroy (zh->dh);
175 zebra_server_lock_destroy (zh);
181 void zebra_search_rpn (ZebraHandle zh, ODR stream,
182 Z_RPNQuery *query, int num_bases, char **basenames,
185 zebra_register_lock (zh);
187 zh->errString = NULL;
189 rpn_search (zh, stream, query, num_bases, basenames, setname);
190 zebra_register_unlock (zh);
193 void zebra_records_retrieve (ZebraHandle zh, ODR stream,
194 const char *setname, Z_RecordComposition *comp,
195 oid_value input_format, int num_recs,
196 ZebraRetrievalRecord *recs)
202 pos_array = xmalloc (num_recs * sizeof(*pos_array));
203 for (i = 0; i<num_recs; i++)
204 pos_array[i] = recs[i].position;
206 zebra_register_lock (zh);
208 poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
211 logf (LOG_DEBUG, "zebraPosSetCreate error");
216 for (i = 0; i<num_recs; i++)
221 logf (LOG_DEBUG, "Out of range. pos=%d", pos_array[i]);
226 zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
227 stream, input_format, comp,
228 &recs[i].format, &recs[i].buf,
231 recs[i].errString = NULL;
234 zebraPosSetDestroy (zh, poset, num_recs);
236 zebra_register_unlock (zh);
240 void zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
241 oid_value attributeset,
242 int num_bases, char **basenames,
243 int *position, int *num_entries, ZebraScanEntry **entries,
247 zebra_register_lock (zh);
248 rpn_scan (zh, stream, zapt, attributeset,
249 num_bases, basenames, position,
250 num_entries, entries, is_partial);
251 zebra_register_unlock (zh);
254 void zebra_sort (ZebraHandle zh, ODR stream,
255 int num_input_setnames, char **input_setnames,
256 char *output_setname, Z_SortKeySpecList *sort_sequence,
259 zebra_register_lock (zh);
260 resultSetSort (zh, stream, num_input_setnames, input_setnames,
261 output_setname, sort_sequence, sort_status);
262 zebra_register_unlock (zh);
265 int zebra_errCode (ZebraHandle zh)
270 const char *zebra_errString (ZebraHandle zh)
272 return diagbib1_str (zh->errCode);
275 char *zebra_errAdd (ZebraHandle zh)
277 return zh->errString;
280 int zebra_hits (ZebraHandle zh)
285 void zebra_setDB (ZebraHandle zh, int num_bases, char **basenames)
290 void zebra_setRecordType (ZebraHandle zh, const char *type)
295 void zebra_setGroup (ZebraHandle zh, const char *group)
300 void zebra_admin (ZebraHandle zh, const char *command)