1/*
2 * Copyright © 2010 Codethink Limited
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
16 *
17 * Author: Ryan Lortie <desrt@desrt.ca>
18 */
19
20#ifndef __gvdb_format_h__
21#define __gvdb_format_h__
22
23#include <glib.h>
24
25typedef struct { guint16 value; } guint16_le;
26typedef struct { guint32 value; } guint32_le;
27
28struct gvdb_pointer {
29 guint32_le start;
30 guint32_le end;
31};
32
33struct gvdb_hash_header {
34 guint32_le n_bloom_words;
35 guint32_le n_buckets;
36};
37
38struct gvdb_hash_item {
39 guint32_le hash_value;
40 guint32_le parent;
41
42 guint32_le key_start;
43 guint16_le key_size;
44 gchar type;
45 gchar unused;
46
47 union
48 {
49 struct gvdb_pointer pointer;
50 gchar direct[8];
51 } value;
52};
53
54struct gvdb_header {
55 guint32 signature[2];
56 guint32_le version;
57 guint32_le options;
58
59 struct gvdb_pointer root;
60};
61
62static inline guint32_le guint32_to_le (guint32 value) {
63 guint32_le result = { GUINT32_TO_LE (value) };
64 return result;
65}
66
67static inline guint32 guint32_from_le (guint32_le value) {
68 return GUINT32_FROM_LE (value.value);
69}
70
71static inline guint16_le guint16_to_le (guint16 value) {
72 guint16_le result = { GUINT16_TO_LE (value) };
73 return result;
74}
75
76static inline guint16 guint16_from_le (guint16_le value) {
77 return GUINT16_FROM_LE (value.value);
78}
79
80#define GVDB_SIGNATURE0 1918981703
81#define GVDB_SIGNATURE1 1953390953
82#define GVDB_SWAPPED_SIGNATURE0 GUINT32_SWAP_LE_BE (GVDB_SIGNATURE0)
83#define GVDB_SWAPPED_SIGNATURE1 GUINT32_SWAP_LE_BE (GVDB_SIGNATURE1)
84
85#endif /* __gvdb_format_h__ */
86

source code of gtk/subprojects/glib/gio/gvdb/gvdb-format.h