2 * Copyright (C) 1994, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.8 1995-12-07 11:48:56 adam
8 * Insert operation obeys DICT_type = 1 (slack in page).
9 * Function dict_open exists if page size or magic aren't right.
11 * Revision 1.7 1995/09/04 12:33:32 adam
12 * Various cleanup. YAZ util used instead.
14 * Revision 1.6 1994/10/05 12:16:52 adam
15 * Pagesize is a resource now.
17 * Revision 1.5 1994/09/01 17:49:39 adam
18 * Removed stupid line. Work on insertion in dictionary. Not finished yet.
20 * Revision 1.4 1994/09/01 17:44:10 adam
21 * depend include change.
23 * Revision 1.3 1994/08/18 12:40:58 adam
24 * Some development of dictionary. Not finished at all!
26 * Revision 1.2 1994/08/17 13:32:20 adam
27 * Use cache in dict - not in bfile.
29 * Revision 1.1 1994/08/16 16:26:49 adam
40 Dict dict_open (const char *name, int cache, int rw)
45 char resource_str[80];
48 dict = xmalloc (sizeof(*dict));
50 sprintf (resource_str, "dict.%s.pagesize", name);
52 page_size = atoi (res_get_def (common_resource, resource_str,
53 DICT_DEFAULT_PAGESIZE));
56 logf (LOG_WARN, "Resource %s was too small. Set to 2048",
60 dict->dbf = dict_bf_open (name, page_size, cache, rw);
65 logf (LOG_WARN, "Cannot open `%s'", name);
69 if (dict_bf_readp (dict->dbf, 0, &head_buf) <= 0)
72 { /* create header with information (page 0) */
73 dict_bf_newp (dict->dbf, 0, &head_buf);
74 dh = (struct Dict_head *) head_buf;
75 strcpy(dh->magic_str, DICT_MAGIC);
76 dh->free_list = dh->last = 1;
77 dh->page_size = page_size;
78 memcpy (&dict->head, dh, sizeof(*dh));
81 { /* no header present, i.e. no dictionary at all */
82 dict->head.free_list = dict->head.last = 0;
83 dict->head.page_size = page_size;
86 else /* header was there, check magic and page size */
88 dh = (struct Dict_head *) head_buf;
89 if (strcmp (dh->magic_str, DICT_MAGIC))
91 logf (LOG_WARN, "Bad magic of `%s'", name);
94 if (dh->page_size != page_size)
96 logf (LOG_WARN, "Resource %s is %d and pagesize of `%s' is %d",
97 resource_str, page_size, name, dh->page_size);
100 memcpy (&dict->head, dh, sizeof(*dh));
105 int dict_strcmp (const Dict_char *s1, const Dict_char *s2)
107 return strcmp (s1, s2);
110 int dict_strlen (const Dict_char *s)