2 * Copyright (C) 1994-2000, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.9 2000-12-05 10:01:44 adam
8 * Fixed bug regarding user-defined attribute sets.
10 * Revision 1.8 2000/04/05 09:49:35 adam
11 * On Unix, zebra/z'mbol uses automake.
13 * Revision 1.7 1999/07/06 12:28:04 adam
14 * Updated record index structure. Format includes version ID. Compression
15 * algorithm ID is stored for each record block.
17 * Revision 1.6 1999/05/26 07:49:13 adam
20 * Revision 1.5 1999/02/02 14:51:05 adam
21 * Updated WIN32 code specific sections. Changed header.
23 * Revision 1.4 1998/03/05 08:45:12 adam
24 * New result set model and modular ranking system. Moved towards
25 * descent server API. System information stored as "SGML" records.
27 * Revision 1.3 1995/12/11 11:45:55 adam
28 * Removed commented code.
30 * Revision 1.2 1995/12/11 09:12:51 adam
31 * The rec_get function returns NULL if record doesn't exist - will
32 * happen in the server if the result set records have been deleted since
33 * the creation of the set (i.e. the search).
34 * The server saves a result temporarily if it is 'volatile', i.e. the
35 * set is register dependent.
37 * Revision 1.1 1995/12/06 12:41:25 adam
38 * New command 'stat' for the index program.
39 * Filenames can be read from stdin by specifying '-'.
40 * Bug fix/enhancement of the transformation from terms to regular
41 * expressons in the search engine.
51 #define REC_BLOCK_TYPES 2
52 #define REC_HEAD_MAGIC "recindex"
57 int compression_method;
62 char *data_fname[REC_BLOCK_TYPES];
63 BFile data_BFile[REC_BLOCK_TYPES];
68 struct record_cache_entry *record_cache;
78 int block_size[REC_BLOCK_TYPES];
79 int block_free[REC_BLOCK_TYPES];
80 int block_last[REC_BLOCK_TYPES];
81 int block_used[REC_BLOCK_TYPES];
82 int block_move[REC_BLOCK_TYPES];
92 enum recordCacheFlag { recordFlagNop, recordFlagWrite, recordFlagNew,
95 struct record_cache_entry {
97 enum recordCacheFlag flag;
100 struct record_index_entry {
101 int next; /* first block of record info / next free entry */
102 int size; /* size of record or 0 if free entry */