2 * Copyright (C) 1994, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.4 1994-09-01 17:44:40 adam
8 * Work on insertion in dictionary. Not finished yet.
9 * CVS ----------------------------------------------------------------------
11 * Revision 1.3 1994/08/18 12:41:12 adam
12 * Some development of dictionary. Not finished at all!
14 * Revision 1.2 1994/08/17 13:32:33 adam
15 * Use cache in dict - not in bfile.
17 * Revision 1.1 1994/08/16 16:26:53 adam
27 typedef unsigned Dict_ptr;
28 typedef char Dict_char;
33 Dict_ptr free_list, last;
36 struct Dict_file_block
38 struct Dict_file_block *h_next, **h_prev;
39 struct Dict_file_block *lru_next, *lru_prev;
45 typedef struct Dict_file_struct
50 struct Dict_file_block *all_blocks;
51 struct Dict_file_block *free_list;
52 struct Dict_file_block **hash_array;
54 struct Dict_file_block *lru_back, *lru_front;
63 typedef struct Dict_struct {
66 struct Dict_head head;
69 int dict_bf_readp (Dict_BFile bf, int no, void **bufp);
70 int dict_bf_newp (Dict_BFile bf, int no, void **bufp);
71 int dict_bf_touch (Dict_BFile bf, int no);
72 void dict_bf_flush_blocks (Dict_BFile bf, int no_to_flush);
73 Dict_BFile dict_bf_open (const char *name, int block_size, int cache, int rw);
74 int dict_bf_close (Dict_BFile dbf);
75 #define DICT_MAGIC "dict00"
77 #define DICT_PAGESIZE 64
79 Dict dict_open (const char *name, int cache, int rw);
80 int dict_close (Dict dict);
81 int dict_insert (Dict dict, const Dict_char *p, int userlen, void *userinfo);
82 int dict_lookup (Dict dict, Dict_char *p);
83 int dict_strcmp (const Dict_char *s1, const Dict_char *s2);
84 int dict_strlen (const Dict_char *s);
87 #define DICT_type(x) 0[(Dict_ptr*) x]
88 #define DICT_backptr(x) 1[(Dict_ptr*) x]
89 #define DICT_nextptr(x) 2[(Dict_ptr*) x]
90 #define DICT_nodir(x) 0[(short*)((char*)(x)+3*sizeof(Dict_ptr))]
91 #define DICT_size(x) 1[(short*)((char*)(x)+3*sizeof(Dict_ptr))]
92 #define DICT_infoffset (3*sizeof(Dict_ptr)+2*sizeof(short))
94 #define DICT_to_str(x) sizeof(Dict_info)+sizeof(Dict_ptr)
98 backptr pointer to parent
99 nextptr pointer to next page (if any)
101 size size of strings,info,ptr entries