1 /* $Id: dict.h,v 1.32 2002-08-02 19:26:55 adam Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
35 typedef unsigned Dict_ptr;
36 typedef unsigned char Dict_char;
42 Dict_ptr root, last, freelist;
45 struct Dict_file_block
47 struct Dict_file_block *h_next, **h_prev;
48 struct Dict_file_block *lru_next, *lru_prev;
55 typedef struct Dict_file_struct
60 struct Dict_file_block *all_blocks;
61 struct Dict_file_block *free_list;
62 struct Dict_file_block **hash_array;
64 struct Dict_file_block *lru_back, *lru_front;
74 typedef struct Dict_struct {
77 const char **(*grep_cmap)(void *vp, const char **from, int len);
79 struct Dict_head head;
82 #define DICT_MAGIC "dict01"
84 #define DICT_DEFAULT_PAGESIZE 4096
86 int dict_bf_readp (Dict_BFile bf, int no, void **bufp);
87 int dict_bf_newp (Dict_BFile bf, int no, void **bufp, int nbytes);
88 int dict_bf_touch (Dict_BFile bf, int no);
89 void dict_bf_flush_blocks (Dict_BFile bf, int no_to_flush);
90 Dict_BFile dict_bf_open (BFiles bfs, const char *name, int block_size,
92 int dict_bf_close (Dict_BFile dbf);
93 void dict_bf_compact (Dict_BFile dbf);
95 Dict dict_open (BFiles bfs, const char *name, int cache, int rw,
97 int dict_close (Dict dict);
98 int dict_insert (Dict dict, const char *p, int userlen, void *userinfo);
99 int dict_delete (Dict dict, const char *p);
100 int dict_delete_subtree (Dict dict, const char *p, void *client,
101 int (*f)(const char *info, void *client));
102 char *dict_lookup (Dict dict, const char *p);
103 int dict_lookup_ec (Dict dict, char *p, int range,
104 int (*f)(char *name));
105 int dict_lookup_grep (Dict dict, const char *p, int range, void *client,
106 int *max_pos, int init_pos,
107 int (*f)(char *name, const char *info,
109 int dict_strcmp (const Dict_char *s1, const Dict_char *s2);
110 int dict_strncmp (const Dict_char *s1, const Dict_char *s2, size_t n);
111 int dict_strlen (const Dict_char *s);
112 int dict_scan (Dict dict, char *str,
113 int *before, int *after, void *client,
114 int (*f)(char *name, const char *info, int pos,
117 void dict_grep_cmap (Dict dict, void *vp,
118 const char **(*cmap)(void *vp,
119 const char **from, int len));
120 int dict_copy_compact (BFiles bfs, const char *from, const char *to);
124 #define DICT_type(x) 0[(Dict_ptr*) x]
125 #define DICT_backptr(x) 1[(Dict_ptr*) x]
126 #define DICT_bsize(x) 2[(short*)((char*)(x)+2*sizeof(Dict_ptr))]
127 #define DICT_nodir(x) 0[(short*)((char*)(x)+2*sizeof(Dict_ptr))]
128 #define DICT_size(x) 1[(short*)((char*)(x)+2*sizeof(Dict_ptr))]
129 #define DICT_infoffset (2*sizeof(Dict_ptr)+3*sizeof(short))
130 #define DICT_xxxxpagesize(x) ((x)->head.page_size)
132 #define DICT_to_str(x) sizeof(Dict_info)+sizeof(Dict_ptr)
136 backptr pointer to parent
137 nextptr pointer to next page (if any)
139 size size of strings,info,ptr entries