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Kernel+LibPartition: Move DiskPartitionMetadata into LibPartition

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This commit creates a new library LibPartition which will contain
partition related code sharable between Kernel and Userland and
includes DiskPartitionMetadata as the first shared class.
This commit is contained in:
Samuel Bowman 2022-02-12 14:21:28 -05:00 • committed by Linus Groh
parent 2786147774
commit be1c5c6b9f
9 changed files with 27 additions and 20 deletions
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98
Userland/Libraries/LibPartition/DiskPartitionMetadata.cpp Normal file
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/*
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibPartition/DiskPartitionMetadata.h>
namespace Partition {
DiskPartitionMetadata::PartitionType::PartitionType(u8 partition_type)
{
m_partition_type[0] = partition_type;
}
DiskPartitionMetadata::PartitionType::PartitionType(Array<u8, 16> partition_type)
: m_partition_type_is_uuid(true)
{
m_partition_type.span().overwrite(0, partition_type.data(), partition_type.size());
}
UUID DiskPartitionMetadata::PartitionType::to_uuid() const
{
VERIFY(is_uuid());
return m_partition_type;
}
u8 DiskPartitionMetadata::PartitionType::to_byte_indicator() const
{
VERIFY(!is_uuid());
return m_partition_type[0];
}
bool DiskPartitionMetadata::PartitionType::is_uuid() const
{
return m_partition_type_is_uuid;
}
bool DiskPartitionMetadata::PartitionType::is_valid() const
{
return !all_of(m_partition_type, [](auto const octet) { return octet == 0; });
}
DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, u8 partition_type)
: m_start_block(start_block)
, m_end_block(end_block)
, m_type(partition_type)
{
VERIFY(m_type.is_valid());
}
DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type)
: m_start_block(start_block)
, m_end_block(end_block)
, m_type(partition_type)
{
VERIFY(m_type.is_valid());
}
DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type, UUID unique_guid, u64 special_attributes)
: m_start_block(start_block)
, m_end_block(end_block)
, m_type(partition_type)
, m_unique_guid(unique_guid)
, m_attributes(special_attributes)
{
VERIFY(m_type.is_valid());
VERIFY(!m_unique_guid.is_zero());
}
DiskPartitionMetadata DiskPartitionMetadata::offset(u64 blocks_count) const
{
return { blocks_count + m_start_block, blocks_count + m_end_block, m_type.m_partition_type };
}
u64 DiskPartitionMetadata::start_block() const
{
return m_start_block;
}
u64 DiskPartitionMetadata::end_block() const
{
return m_end_block;
}
Optional<u64> DiskPartitionMetadata::special_attributes() const
{
if (m_attributes == 0)
return {};
return m_attributes;
}
DiskPartitionMetadata::PartitionType const& DiskPartitionMetadata::type() const
{
return m_type;
}
const UUID& DiskPartitionMetadata::unique_guid() const
{
return m_unique_guid;
}
}