1 /*
2  * B-tree node descriptor functions
3  *
4  * Copyright (C) 2009-2021, Joachim Metz <joachim.metz@gmail.com>
5  *
6  * Refer to AUTHORS for acknowledgements.
7  *
8  * This program is free software: you can redistribute it and/or modify
9  * it under the terms of the GNU Lesser General Public License as published by
10  * the Free Software Foundation, either version 3 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public License
19  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
20  */
21 
22 #if !defined( _LIBFSHFS_BTREE_NODE_DESCRIPTOR_H )
23 #define _LIBFSHFS_BTREE_NODE_DESCRIPTOR_H
24 
25 #include <common.h>
26 #include <types.h>
27 
28 #include "libfshfs_libcerror.h"
29 
30 #if defined( __cplusplus )
31 extern "C" {
32 #endif
33 
34 typedef struct libfshfs_btree_node_descriptor libfshfs_btree_node_descriptor_t;
35 
36 struct libfshfs_btree_node_descriptor
37 {
38 	/* The (node) type
39 	 */
40 	uint8_t type;
41 
42 	/* The (node) level
43 	 */
44 	uint8_t level;
45 
46 	/* The number of records
47 	 */
48 	uint16_t number_of_records;
49 
50 	/* The next node number
51 	 */
52 	uint32_t next_node_number;
53 
54 	/* The previous node number
55 	 */
56 	uint32_t previous_node_number;
57 };
58 
59 int libfshfs_btree_node_descriptor_initialize(
60      libfshfs_btree_node_descriptor_t **btree_node_descriptor,
61      libcerror_error_t **error );
62 
63 int libfshfs_btree_node_descriptor_free(
64      libfshfs_btree_node_descriptor_t **btree_node_descriptor,
65      libcerror_error_t **error );
66 
67 int libfshfs_btree_node_descriptor_read_data(
68      libfshfs_btree_node_descriptor_t *btree_node_descriptor,
69      const uint8_t *data,
70      size_t data_size,
71      libcerror_error_t **error );
72 
73 #if defined( __cplusplus )
74 }
75 #endif
76 
77 #endif /* !defined( _LIBFSHFS_BTREE_NODE_DESCRIPTOR_H ) */
78 
79