2 * Copyright (C) 1994-1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.37 1996-03-26 16:01:13 adam
8 * New setting lockPath: directory of various lock files.
10 * Revision 1.36 1996/03/21 14:50:09 adam
11 * File update uses modify-time instead of change-time.
13 * Revision 1.35 1996/02/12 18:45:36 adam
14 * New fileVerboseFlag in record group control.
16 * Revision 1.34 1995/12/11 11:43:29 adam
17 * Locking based on fcntl instead of flock.
18 * Setting commitEnable removed. Command line option -n can be used to
19 * prevent commit if commit setting is defined in the configuration file.
21 * Revision 1.33 1995/12/08 16:22:53 adam
22 * Work on update while servers are running. Three lock files introduced.
23 * The servers reload their registers when necessary, but they don't
24 * reestablish result sets yet.
26 * Revision 1.32 1995/12/07 17:38:46 adam
27 * Work locking mechanisms for concurrent updates/commit.
29 * Revision 1.31 1995/12/06 12:41:22 adam
30 * New command 'stat' for the index program.
31 * Filenames can be read from stdin by specifying '-'.
32 * Bug fix/enhancement of the transformation from terms to regular
33 * expressons in the search engine.
35 * Revision 1.30 1995/12/05 11:25:02 adam
36 * Include of zebraver.h.
38 * Revision 1.29 1995/11/28 09:09:40 adam
39 * Zebra config renamed.
40 * Use setting 'recordId' to identify record now.
41 * Bug fix in recindex.c: rec_release_blocks was invokeded even
42 * though the blocks were already released.
43 * File traversal properly deletes records when needed.
45 * Revision 1.28 1995/11/27 13:58:53 adam
46 * New option -t. storeStore data implemented in server.
48 * Revision 1.27 1995/11/25 10:24:06 adam
49 * More record fields - they are enumerated now.
50 * New options: flagStoreData flagStoreKey.
52 * Revision 1.26 1995/11/22 17:19:17 adam
53 * Record management uses the bfile system.
55 * Revision 1.25 1995/11/21 15:29:12 adam
56 * Config file 'base' read by default by both indexer and server.
58 * Revision 1.24 1995/11/21 15:01:15 adam
59 * New general match criteria implemented.
60 * New feature: document groups.
62 * Revision 1.23 1995/11/20 16:59:45 adam
63 * New update method: the 'old' keys are saved for each records.
65 * Revision 1.22 1995/11/20 11:56:26 adam
66 * Work on new traversal.
68 * Revision 1.21 1995/11/16 15:34:55 adam
69 * Uses new record management system in both indexer and server.
71 * Revision 1.20 1995/11/15 14:46:18 adam
72 * Started work on better record management system.
74 * Revision 1.19 1995/10/27 14:00:11 adam
75 * Implemented detection of database availability.
77 * Revision 1.18 1995/10/17 18:02:08 adam
78 * New feature: databases. Implemented as prefix to words in dictionary.
80 * Revision 1.17 1995/10/13 16:01:49 adam
83 * Revision 1.16 1995/10/10 12:24:38 adam
84 * Temporary sort files are compressed.
86 * Revision 1.15 1995/10/04 16:57:19 adam
87 * Key input and merge sort in one pass.
89 * Revision 1.14 1995/09/29 14:01:40 adam
92 * Revision 1.13 1995/09/28 14:22:56 adam
93 * Sort uses smaller temporary files.
95 * Revision 1.12 1995/09/28 12:10:32 adam
96 * Bug fixes. Field prefix used in queries.
98 * Revision 1.11 1995/09/27 12:22:28 adam
99 * More work on extract in record control.
100 * Field name is not in isam keys but in prefix in dictionary words.
102 * Revision 1.10 1995/09/14 07:48:23 adam
103 * Record control management.
105 * Revision 1.9 1995/09/11 13:09:33 adam
106 * More work on relevance feedback.
108 * Revision 1.8 1995/09/08 14:52:27 adam
109 * Minor changes. Dictionary is lower case now.
111 * Revision 1.7 1995/09/06 16:11:16 adam
112 * Option: only one word key per file.
114 * Revision 1.6 1995/09/05 15:28:39 adam
115 * More work on search engine.
117 * Revision 1.5 1995/09/04 12:33:42 adam
118 * Various cleanup. YAZ util used instead.
120 * Revision 1.4 1995/09/04 09:10:35 adam
121 * More work on index add/del/update.
122 * Merge sort implemented.
123 * Initial work on z39 server.
125 * Revision 1.3 1995/09/01 14:06:35 adam
126 * Split of work into more files.
128 * Revision 1.2 1995/09/01 10:30:24 adam
129 * More work on indexing. Not working yet.
131 * Revision 1.1 1995/08/31 14:50:24 adam
132 * New simple file index tool.
137 #include <zebraver.h>
138 #include <alexutil.h>
142 #define IT_MAX_WORD 256
143 #define IT_KEY_HAVE_SEQNO 1
144 #define IT_KEY_HAVE_FIELD 0
151 enum dirsKind { dirs_dir, dirs_file };
178 struct dirs_info *dirs_open (Dict dict, const char *rep);
179 struct dirs_entry *dirs_read (struct dirs_info *p);
180 struct dirs_entry *dirs_last (struct dirs_info *p);
181 void dirs_mkdir (struct dirs_info *p, const char *src, time_t mtime);
182 void dirs_rmdir (struct dirs_info *p, const char *src);
183 void dirs_add (struct dirs_info *p, const char *src, int sysno, time_t mtime);
184 void dirs_del (struct dirs_info *p, const char *src);
185 void dirs_free (struct dirs_info **pp);
187 struct dir_entry *dir_open (const char *rep);
188 void dir_sort (struct dir_entry *e);
189 void dir_free (struct dir_entry **e_p);
191 void repositoryUpdate (struct recordGroup *rGroup);
192 void repositoryAdd (struct recordGroup *rGroup);
193 void repositoryDelete (struct recordGroup *rGroup);
194 void repositoryShow (struct recordGroup *rGroup);
196 void key_open (int mem);
197 int key_close (void);
198 void key_write (int cmd, struct it_key *k, const char *str);
199 int key_compare (const void *p1, const void *p2);
200 int key_qsort_compare (const void *p1, const void *p2);
201 void key_logdump (int mask, const void *p);
202 void key_input (const char *dict_fname, const char *isam_fname,
203 int nkeys, int cache);
204 int merge_sort (char **buf, int from, int to);
206 #define TEMP_FNAME "keys%d.tmp"
207 #define FNAME_WORD_DICT "worddict"
208 #define FNAME_WORD_ISAM "wordisam"
209 #define FNAME_CONFIG "zebra.cfg"
211 #define GMATCH_DICT "gmatch"
212 #define FMATCH_DICT "fmatch"
214 struct strtab *strtab_mk (void);
215 int strtab_src (struct strtab *t, const char *name, void ***infop);
216 void strtab_del (struct strtab *t,
217 void (*func)(const char *name, void *info, void *data),
219 int index_char_cvt (int c);
220 int index_word_prefix (char *string, int attset_ordinal,
221 int local_attribute, const char *databaseName);
223 int fileExtract (SYSNO *sysno, const char *fname,
224 const struct recordGroup *rGroup, int deleteFlag);
226 void rec_prstat (void);
228 void zebraLockPrefix (char *pathPrefix);
230 void zebraIndexLockMsg (const char *str);
231 void zebraIndexUnlock (void);
232 void zebraIndexLock (int commitNow);
233 int zebraIndexWait (int commitPhase);
235 #define FNAME_MAIN_LOCK "zebraidx.LCK"
236 #define FNAME_COMMIT_LOCK "zebracmt.LCK"
237 #define FNAME_ORG_LOCK "zebraorg.LCK"
238 #define FNAME_TOUCH_TIME "zebraidx.time"
240 int zebraLock (int fd, int wr);
241 int zebraLockNB (int fd, int wr);
242 int zebraUnlock (int fd);