2 * Copyright (C) 1995-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss, Heikki Levanto
25 #define IT_MAX_WORD 256
26 #define IT_KEY_HAVE_SEQNO 1
27 #define IT_KEY_HAVE_FIELD 0
36 enum dirsKind { dirs_dir, dirs_file };
72 void getFnameTmp (char *fname, int no);
74 struct dirs_info *dirs_open (Dict dict, const char *rep, int rw);
75 struct dirs_info *dirs_fopen (Dict dict, const char *path);
76 struct dirs_entry *dirs_read (struct dirs_info *p);
77 struct dirs_entry *dirs_last (struct dirs_info *p);
78 void dirs_mkdir (struct dirs_info *p, const char *src, time_t mtime);
79 void dirs_rmdir (struct dirs_info *p, const char *src);
80 void dirs_add (struct dirs_info *p, const char *src, int sysno, time_t mtime);
81 void dirs_del (struct dirs_info *p, const char *src);
82 void dirs_free (struct dirs_info **pp);
84 struct dir_entry *dir_open (const char *rep);
85 void dir_sort (struct dir_entry *e);
86 void dir_free (struct dir_entry **e_p);
88 void repositoryUpdate (struct recordGroup *rGroup);
89 void repositoryAdd (struct recordGroup *rGroup);
90 void repositoryDelete (struct recordGroup *rGroup);
91 void repositoryShow (struct recordGroup *rGroup);
93 int key_open (struct recordGroup *rGroup, int mem);
94 int key_close (struct recordGroup *group);
95 int key_compare (const void *p1, const void *p2);
96 int key_get_pos (const void *p);
97 int key_compare_it (const void *p1, const void *p2);
98 int key_qsort_compare (const void *p1, const void *p2);
99 void key_logdump (int mask, const void *p);
100 void inv_prstat (BFiles bfs);
101 void inv_compact (BFiles bfs);
102 void key_input (BFiles bfs, int nkeys, int cache);
103 ISAMC_M key_isamc_m (Res res, ISAMC_M me);
104 ISAMS_M key_isams_m (Res res, ISAMS_M me);
105 ISAMH_M key_isamh_m (Res res);
106 ISAMD_M key_isamd_m (Res res, ISAMD_M me);
107 int merge_sort (char **buf, int from, int to);
108 int key_SU_code (int ch, char *out);
110 #define FNAME_DICT "dict"
111 #define FNAME_ISAM "isam"
112 #define FNAME_ISAMC "isamc"
113 #define FNAME_ISAMS "isams"
114 #define FNAME_ISAMH "isamh"
115 #define FNAME_ISAMD "isamd"
116 #define FNAME_CONFIG "zebra.cfg"
118 #define GMATCH_DICT "gmatch"
119 #define FMATCH_DICT "fmatch"
121 struct strtab *strtab_mk (void);
122 int strtab_src (struct strtab *t, const char *name, void ***infop);
123 void strtab_del (struct strtab *t,
124 void (*func)(const char *name, void *info, void *data),
126 int index_char_cvt (int c);
127 int index_word_prefix (char *string, int attset_ordinal,
128 int local_attribute, const char *databaseName);
130 int fileExtract (SYSNO *sysno, const char *fname,
131 const struct recordGroup *rGroup, int deleteFlag);
133 void zebraIndexLockMsg (const char *str);
134 void zebraIndexUnlock (void);
135 void zebraIndexLock (BFiles bfs, int commitNow, const char *rval);
136 int zebraIndexWait (int commitPhase);
138 #define FNAME_MAIN_LOCK "zebraidx.LCK"
139 #define FNAME_COMMIT_LOCK "zebracmt.LCK"
140 #define FNAME_ORG_LOCK "zebraorg.LCK"
141 #define FNAME_TOUCH_TIME "zebraidx.time"
143 typedef struct zebra_lock_info *ZebraLockHandle;
144 ZebraLockHandle zebra_lock_create(const char *file, int excl_flag);
145 void zebra_lock_destroy (ZebraLockHandle h);
146 int zebra_lock (ZebraLockHandle h);
147 int zebra_lock_nb (ZebraLockHandle h);
148 int zebra_unlock (ZebraLockHandle h);
149 int zebra_lock_fd (ZebraLockHandle h);
150 void zebra_lock_prefix (Res res, char *dst);
152 void zebra_load_atts (data1_handle dh, Res res);
154 extern Res common_resource;
164 * Revision 1.66 1999-07-14 13:21:34 heikki
165 * Added isam-d files. Compiles (almost) clean. Doesn't work at all
167 * Revision 1.65 1999/07/14 10:59:26 adam
168 * Changed functions isc_getmethod, isams_getmethod.
169 * Improved fatal error handling (such as missing EXPLAIN schema).
171 * Revision 1.64 1999/06/30 15:07:23 heikki
174 * Revision 1.63 1999/05/26 07:49:13 adam
177 * Revision 1.62 1999/05/12 13:08:06 adam
178 * First version of ISAMS.
180 * Revision 1.61 1999/03/09 16:27:49 adam
181 * More work on SDRKit integration.
183 * Revision 1.60 1998/10/16 08:14:31 adam
184 * Updated record control system.
186 * Revision 1.59 1998/06/08 14:43:11 adam
187 * Added suport for EXPLAIN Proxy servers - added settings databasePath
188 * and explainDatabase to facilitate this. Increased maximum number
189 * of databases and attributes in one register.
191 * Revision 1.58 1998/05/20 10:12:16 adam
192 * Implemented automatic EXPLAIN database maintenance.
193 * Modified Zebra to work with ASN.1 compiled version of YAZ.
195 * Revision 1.57 1998/03/05 08:45:12 adam
196 * New result set model and modular ranking system. Moved towards
197 * descent server API. System information stored as "SGML" records.
199 * Revision 1.56 1998/01/12 15:04:08 adam
200 * The test option (-s) only uses read-lock (and not write lock).
202 * Revision 1.55 1997/10/27 14:33:04 adam
203 * Moved towards generic character mapping depending on "structure"
204 * field in abstract syntax file. Fixed a few memory leaks. Fixed
205 * bug with negative integers when doing searches with relational
208 * Revision 1.54 1997/09/29 09:08:36 adam
209 * Revised locking system to be thread safe for the server.
211 * Revision 1.53 1997/09/25 14:54:43 adam
212 * WIN32 files lock support.
214 * Revision 1.52 1997/09/22 12:39:06 adam
215 * Added get_pos method for the ranked result sets.
217 * Revision 1.51 1997/09/18 08:59:19 adam
218 * Extra generic handle for the character mapping routines.
220 * Revision 1.50 1997/09/17 12:19:13 adam
221 * Zebra version corresponds to YAZ version 1.4.
222 * Changed Zebra server so that it doesn't depend on global common_resource.
224 * Revision 1.49 1997/09/05 15:30:08 adam
225 * Changed prototype for chr_map_input - added const.
226 * Added support for C++, headers uses extern "C" for public definitions.
228 * Revision 1.48 1997/02/12 20:39:45 adam
229 * Implemented options -f <n> that limits the log to the first <n>
231 * Changed some log messages also.
233 * Revision 1.47 1996/12/23 15:30:44 adam
234 * Work on truncation.
235 * Bug fix: result sets weren't deleted after server shut down.
237 * Revision 1.46 1996/11/08 11:10:19 adam
238 * Buffers used during file match got bigger.
239 * Compressed ISAM support everywhere.
240 * Bug fixes regarding masking characters in queries.
241 * Redesigned Regexp-2 queries.
243 * Revision 1.45 1996/10/29 14:09:42 adam
244 * Use of cisam system - enabled if setting isamc is 1.
246 * Revision 1.44 1996/06/06 12:08:40 quinn
247 * Added showRecord function
249 * Revision 1.43 1996/06/04 10:18:12 adam
250 * Search/scan uses character mapping module.
252 * Revision 1.42 1996/06/04 08:20:16 quinn
255 * Revision 1.41 1996/06/04 07:54:55 quinn
258 * Revision 1.40 1996/05/31 09:06:58 quinn
259 * Work on character-set handling
261 * Revision 1.39 1996/05/14 14:04:33 adam
262 * In zebraidx, the 'stat' command is improved. Statistics about ISAM/DICT
265 * Revision 1.38 1996/04/12 07:02:23 adam
266 * File update of single files.
268 * Revision 1.37 1996/03/26 16:01:13 adam
269 * New setting lockPath: directory of various lock files.
271 * Revision 1.36 1996/03/21 14:50:09 adam
272 * File update uses modify-time instead of change-time.
274 * Revision 1.35 1996/02/12 18:45:36 adam
275 * New fileVerboseFlag in record group control.
277 * Revision 1.34 1995/12/11 11:43:29 adam
278 * Locking based on fcntl instead of flock.
279 * Setting commitEnable removed. Command line option -n can be used to
280 * prevent commit if commit setting is defined in the configuration file.
282 * Revision 1.33 1995/12/08 16:22:53 adam
283 * Work on update while servers are running. Three lock files introduced.
284 * The servers reload their registers when necessary, but they don't
285 * reestablish result sets yet.
287 * Revision 1.32 1995/12/07 17:38:46 adam
288 * Work locking mechanisms for concurrent updates/commit.
290 * Revision 1.31 1995/12/06 12:41:22 adam
291 * New command 'stat' for the index program.
292 * Filenames can be read from stdin by specifying '-'.
293 * Bug fix/enhancement of the transformation from terms to regular
294 * expressons in the search engine.
296 * Revision 1.30 1995/12/05 11:25:02 adam
297 * Include of zebraver.h.
299 * Revision 1.29 1995/11/28 09:09:40 adam
300 * Zebra config renamed.
301 * Use setting 'recordId' to identify record now.
302 * Bug fix in recindex.c: rec_release_blocks was invokeded even
303 * though the blocks were already released.
304 * File traversal properly deletes records when needed.
306 * Revision 1.28 1995/11/27 13:58:53 adam
307 * New option -t. storeStore data implemented in server.
309 * Revision 1.27 1995/11/25 10:24:06 adam
310 * More record fields - they are enumerated now.
311 * New options: flagStoreData flagStoreKey.
313 * Revision 1.26 1995/11/22 17:19:17 adam
314 * Record management uses the bfile system.
316 * Revision 1.25 1995/11/21 15:29:12 adam
317 * Config file 'base' read by default by both indexer and server.
319 * Revision 1.24 1995/11/21 15:01:15 adam
320 * New general match criteria implemented.
321 * New feature: document groups.
323 * Revision 1.23 1995/11/20 16:59:45 adam
324 * New update method: the 'old' keys are saved for each records.
326 * Revision 1.22 1995/11/20 11:56:26 adam
327 * Work on new traversal.
329 * Revision 1.21 1995/11/16 15:34:55 adam
330 * Uses new record management system in both indexer and server.
332 * Revision 1.20 1995/11/15 14:46:18 adam
333 * Started work on better record management system.
335 * Revision 1.19 1995/10/27 14:00:11 adam
336 * Implemented detection of database availability.
338 * Revision 1.18 1995/10/17 18:02:08 adam
339 * New feature: databases. Implemented as prefix to words in dictionary.
341 * Revision 1.17 1995/10/13 16:01:49 adam
344 * Revision 1.16 1995/10/10 12:24:38 adam
345 * Temporary sort files are compressed.
347 * Revision 1.15 1995/10/04 16:57:19 adam
348 * Key input and merge sort in one pass.
350 * Revision 1.14 1995/09/29 14:01:40 adam
353 * Revision 1.13 1995/09/28 14:22:56 adam
354 * Sort uses smaller temporary files.
356 * Revision 1.12 1995/09/28 12:10:32 adam
357 * Bug fixes. Field prefix used in queries.
359 * Revision 1.11 1995/09/27 12:22:28 adam
360 * More work on extract in record control.
361 * Field name is not in isam keys but in prefix in dictionary words.
363 * Revision 1.10 1995/09/14 07:48:23 adam
364 * Record control management.
366 * Revision 1.9 1995/09/11 13:09:33 adam
367 * More work on relevance feedback.
369 * Revision 1.8 1995/09/08 14:52:27 adam
370 * Minor changes. Dictionary is lower case now.
372 * Revision 1.7 1995/09/06 16:11:16 adam
373 * Option: only one word key per file.
375 * Revision 1.6 1995/09/05 15:28:39 adam
376 * More work on search engine.
378 * Revision 1.5 1995/09/04 12:33:42 adam
379 * Various cleanup. YAZ util used instead.
381 * Revision 1.4 1995/09/04 09:10:35 adam
382 * More work on index add/del/update.
383 * Merge sort implemented.
384 * Initial work on z39 server.
386 * Revision 1.3 1995/09/01 14:06:35 adam
387 * Split of work into more files.
389 * Revision 1.2 1995/09/01 10:30:24 adam
390 * More work on indexing. Not working yet.
392 * Revision 1.1 1995/08/31 14:50:24 adam
393 * New simple file index tool.