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86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
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* Copyright © 2010 Codethink Limited
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the licence, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Ryan Lortie <desrt@desrt.ca>
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*/
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#ifndef __gvdb_format_h__
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#define __gvdb_format_h__
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#include <glib.h>
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typedef struct { guint16 value; } guint16_le;
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typedef struct { guint32 value; } guint32_le;
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struct gvdb_pointer {
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guint32_le start;
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guint32_le end;
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};
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struct gvdb_hash_header {
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guint32_le n_bloom_words;
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guint32_le n_buckets;
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};
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struct gvdb_hash_item {
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guint32_le hash_value;
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guint32_le parent;
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guint32_le key_start;
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guint16_le key_size;
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gchar type;
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gchar unused;
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union
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{
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struct gvdb_pointer pointer;
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gchar direct[8];
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} value;
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};
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struct gvdb_header {
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guint32 signature[2];
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guint32_le version;
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guint32_le options;
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struct gvdb_pointer root;
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};
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static inline guint32_le guint32_to_le (guint32 value) {
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guint32_le result = { GUINT32_TO_LE (value) };
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return result;
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}
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static inline guint32 guint32_from_le (guint32_le value) {
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return GUINT32_FROM_LE (value.value);
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}
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static inline guint16_le guint16_to_le (guint16 value) {
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guint16_le result = { GUINT16_TO_LE (value) };
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return result;
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}
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static inline guint16 guint16_from_le (guint16_le value) {
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return GUINT16_FROM_LE (value.value);
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}
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#define GVDB_SIGNATURE0 1918981703
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#define GVDB_SIGNATURE1 1953390953
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#define GVDB_SWAPPED_SIGNATURE0 GUINT32_SWAP_LE_BE (GVDB_SIGNATURE0)
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#define GVDB_SWAPPED_SIGNATURE1 GUINT32_SWAP_LE_BE (GVDB_SIGNATURE1)
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#endif /* __gvdb_format_h__ */
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