jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <LibPartition/DiskPartitionMetadata.h>
8
9namespace Partition {
10
11DiskPartitionMetadata::PartitionType::PartitionType(u8 partition_type)
12{
13 m_partition_type[0] = partition_type;
14}
15DiskPartitionMetadata::PartitionType::PartitionType(Array<u8, 16> partition_type)
16 : m_partition_type_is_uuid(true)
17{
18 m_partition_type.span().overwrite(0, partition_type.data(), partition_type.size());
19}
20UUID DiskPartitionMetadata::PartitionType::to_uuid() const
21{
22 VERIFY(is_uuid());
23 return m_partition_type;
24}
25u8 DiskPartitionMetadata::PartitionType::to_byte_indicator() const
26{
27 VERIFY(!is_uuid());
28 return m_partition_type[0];
29}
30bool DiskPartitionMetadata::PartitionType::is_uuid() const
31{
32 return m_partition_type_is_uuid;
33}
34bool DiskPartitionMetadata::PartitionType::is_valid() const
35{
36 return !all_of(m_partition_type, [](auto const octet) { return octet == 0; });
37}
38
39DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, u8 partition_type)
40 : m_start_block(start_block)
41 , m_end_block(end_block)
42 , m_type(partition_type)
43{
44 VERIFY(m_type.is_valid());
45}
46
47DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type)
48 : m_start_block(start_block)
49 , m_end_block(end_block)
50 , m_type(partition_type)
51{
52 VERIFY(m_type.is_valid());
53}
54
55DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type, UUID unique_guid, u64 special_attributes)
56 : m_start_block(start_block)
57 , m_end_block(end_block)
58 , m_type(partition_type)
59 , m_unique_guid(unique_guid)
60 , m_attributes(special_attributes)
61{
62 VERIFY(m_type.is_valid());
63 VERIFY(!m_unique_guid.is_zero());
64}
65
66DiskPartitionMetadata DiskPartitionMetadata::offset(u64 blocks_count) const
67{
68 return { blocks_count + m_start_block, blocks_count + m_end_block, m_type.m_partition_type };
69}
70
71u64 DiskPartitionMetadata::start_block() const
72{
73 return m_start_block;
74}
75
76u64 DiskPartitionMetadata::end_block() const
77{
78 return m_end_block;
79}
80
81Optional<u64> DiskPartitionMetadata::special_attributes() const
82{
83 if (m_attributes == 0)
84 return {};
85 return m_attributes;
86}
87
88DiskPartitionMetadata::PartitionType const& DiskPartitionMetadata::type() const
89{
90 return m_type;
91}
92
93const UUID& DiskPartitionMetadata::unique_guid() const
94{
95 return m_unique_guid;
96}
97
98}