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Kernel+LibPartition: Move DiskPartitionMetadata into LibPartition
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
Linus Groh
parent
2786147774
commit
be1c5c6b9f
9 changed files with 27 additions and 20 deletions
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@ -11,7 +11,7 @@
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namespace Kernel {
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NonnullRefPtr<DiskPartition> DiskPartition::create(BlockDevice& device, unsigned minor_number, DiskPartitionMetadata metadata)
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NonnullRefPtr<DiskPartition> DiskPartition::create(BlockDevice& device, unsigned minor_number, Partition::DiskPartitionMetadata metadata)
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{
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auto partition_or_error = DeviceManagement::try_create_device<DiskPartition>(device, minor_number, metadata);
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// FIXME: Find a way to propagate errors
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@ -19,7 +19,7 @@ NonnullRefPtr<DiskPartition> DiskPartition::create(BlockDevice& device, unsigned
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return partition_or_error.release_value();
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}
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DiskPartition::DiskPartition(BlockDevice& device, unsigned minor_number, DiskPartitionMetadata metadata)
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DiskPartition::DiskPartition(BlockDevice& device, unsigned minor_number, Partition::DiskPartitionMetadata metadata)
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: BlockDevice(100, minor_number, device.block_size())
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, m_device(device)
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, m_metadata(metadata)
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@ -28,7 +28,7 @@ DiskPartition::DiskPartition(BlockDevice& device, unsigned minor_number, DiskPar
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DiskPartition::~DiskPartition() = default;
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DiskPartitionMetadata const& DiskPartition::metadata() const
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Partition::DiskPartitionMetadata const& DiskPartition::metadata() const
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{
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return m_metadata;
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}
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@ -9,7 +9,7 @@
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#include <AK/RefPtr.h>
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#include <AK/WeakPtr.h>
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#include <Kernel/Devices/BlockDevice.h>
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#include <Kernel/Storage/Partition/DiskPartitionMetadata.h>
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#include <LibPartition/DiskPartitionMetadata.h>
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namespace Kernel {
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@ -17,7 +17,7 @@ class DiskPartition final : public BlockDevice {
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friend class DeviceManagement;
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public:
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static NonnullRefPtr<DiskPartition> create(BlockDevice&, unsigned, DiskPartitionMetadata);
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static NonnullRefPtr<DiskPartition> create(BlockDevice&, unsigned, Partition::DiskPartitionMetadata);
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virtual ~DiskPartition();
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virtual void start_request(AsyncBlockDeviceRequest&) override;
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@ -28,14 +28,14 @@ public:
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virtual ErrorOr<size_t> write(OpenFileDescription&, u64, UserOrKernelBuffer const&, size_t) override;
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virtual bool can_write(OpenFileDescription const&, u64) const override;
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DiskPartitionMetadata const& metadata() const;
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Partition::DiskPartitionMetadata const& metadata() const;
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private:
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DiskPartition(BlockDevice&, unsigned, DiskPartitionMetadata);
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DiskPartition(BlockDevice&, unsigned, Partition::DiskPartitionMetadata);
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virtual StringView class_name() const override;
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WeakPtr<BlockDevice> m_device;
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DiskPartitionMetadata m_metadata;
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Partition::DiskPartitionMetadata m_metadata;
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};
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}
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@ -1,99 +0,0 @@
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/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/AllOf.h>
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#include <Kernel/Storage/Partition/DiskPartitionMetadata.h>
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namespace Kernel {
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DiskPartitionMetadata::PartitionType::PartitionType(u8 partition_type)
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{
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m_partition_type[0] = partition_type;
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}
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DiskPartitionMetadata::PartitionType::PartitionType(Array<u8, 16> partition_type)
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: m_partition_type_is_uuid(true)
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{
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m_partition_type.span().overwrite(0, partition_type.data(), partition_type.size());
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}
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UUID DiskPartitionMetadata::PartitionType::to_uuid() const
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{
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VERIFY(is_uuid());
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return m_partition_type;
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}
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u8 DiskPartitionMetadata::PartitionType::to_byte_indicator() const
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{
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VERIFY(!is_uuid());
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return m_partition_type[0];
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}
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bool DiskPartitionMetadata::PartitionType::is_uuid() const
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{
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return m_partition_type_is_uuid;
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}
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bool DiskPartitionMetadata::PartitionType::is_valid() const
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{
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return !all_of(m_partition_type, [](auto const octet) { return octet == 0; });
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}
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DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, u8 partition_type)
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: m_start_block(start_block)
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, m_end_block(end_block)
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, m_type(partition_type)
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{
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VERIFY(m_type.is_valid());
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}
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DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type)
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: m_start_block(start_block)
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, m_end_block(end_block)
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, m_type(partition_type)
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{
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VERIFY(m_type.is_valid());
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}
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DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type, UUID unique_guid, u64 special_attributes)
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: m_start_block(start_block)
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, m_end_block(end_block)
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, m_type(partition_type)
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, m_unique_guid(unique_guid)
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, m_attributes(special_attributes)
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{
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VERIFY(m_type.is_valid());
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VERIFY(!m_unique_guid.is_zero());
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}
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DiskPartitionMetadata DiskPartitionMetadata::offset(u64 blocks_count) const
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{
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return { blocks_count + m_start_block, blocks_count + m_end_block, m_type.m_partition_type };
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}
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u64 DiskPartitionMetadata::start_block() const
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{
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return m_start_block;
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}
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u64 DiskPartitionMetadata::end_block() const
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{
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return m_end_block;
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}
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Optional<u64> DiskPartitionMetadata::special_attributes() const
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{
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if (m_attributes == 0)
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return {};
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return m_attributes;
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}
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DiskPartitionMetadata::PartitionType const& DiskPartitionMetadata::type() const
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{
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return m_type;
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}
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const UUID& DiskPartitionMetadata::unique_guid() const
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{
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return m_unique_guid;
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}
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}
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@ -1,54 +0,0 @@
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/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefPtr.h>
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#include <AK/UUID.h>
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#include <Kernel/Devices/BlockDevice.h>
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namespace Kernel {
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class DiskPartitionMetadata {
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private:
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class PartitionType {
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friend class DiskPartitionMetadata;
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public:
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explicit PartitionType(u8 partition_type);
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explicit PartitionType(Array<u8, 16> partition_type);
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UUID to_uuid() const;
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u8 to_byte_indicator() const;
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bool is_uuid() const;
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bool is_valid() const;
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private:
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Array<u8, 16> m_partition_type {};
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bool m_partition_type_is_uuid { false };
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};
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public:
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DiskPartitionMetadata(u64 block_offset, u64 block_limit, u8 partition_type);
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DiskPartitionMetadata(u64 start_block, u64 end_block, Array<u8, 16> partition_type);
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DiskPartitionMetadata(u64 block_offset, u64 block_limit, Array<u8, 16> partition_type, UUID unique_guid, u64 special_attributes);
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u64 start_block() const;
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u64 end_block() const;
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DiskPartitionMetadata offset(u64 blocks_count) const;
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Optional<u64> special_attributes() const;
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PartitionType const& type() const;
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const UUID& unique_guid() const;
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private:
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u64 m_start_block;
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u64 m_end_block;
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PartitionType m_type;
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UUID m_unique_guid {};
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u64 m_attributes { 0 };
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};
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}
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@ -12,7 +12,7 @@ PartitionTable::PartitionTable(StorageDevice const& device)
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{
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}
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Optional<DiskPartitionMetadata> PartitionTable::partition(unsigned index)
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Optional<Partition::DiskPartitionMetadata> PartitionTable::partition(unsigned index)
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{
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if (index > partitions_count())
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return {};
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@ -9,25 +9,25 @@
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#include <AK/RefPtr.h>
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#include <AK/Vector.h>
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#include <Kernel/Storage/Partition/DiskPartition.h>
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#include <Kernel/Storage/Partition/DiskPartitionMetadata.h>
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#include <Kernel/Storage/StorageDevice.h>
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#include <LibPartition/DiskPartitionMetadata.h>
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namespace Kernel {
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class PartitionTable {
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public:
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Optional<DiskPartitionMetadata> partition(unsigned index);
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Optional<Partition::DiskPartitionMetadata> partition(unsigned index);
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size_t partitions_count() const { return m_partitions.size(); }
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virtual ~PartitionTable() = default;
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virtual bool is_valid() const = 0;
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Vector<DiskPartitionMetadata> partitions() const { return m_partitions; }
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Vector<Partition::DiskPartitionMetadata> partitions() const { return m_partitions; }
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protected:
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explicit PartitionTable(StorageDevice const&);
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NonnullRefPtr<StorageDevice> m_device;
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Vector<DiskPartitionMetadata> m_partitions;
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Vector<Partition::DiskPartitionMetadata> m_partitions;
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};
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}
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