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DiskPartition.h
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DiskPartition.h
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/*
* Copyright (c) 2018-2020, Andreas Kling <[email protected]>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/Devices/BlockDevice.h>
#include <Kernel/Library/LockRefPtr.h>
#include <Kernel/Library/LockWeakPtr.h>
#include <LibPartition/DiskPartitionMetadata.h>
namespace Kernel {
class DiskPartition final : public BlockDevice {
friend class DeviceManagement;
public:
static NonnullLockRefPtr<DiskPartition> create(BlockDevice&, MinorNumber, Partition::DiskPartitionMetadata);
virtual ~DiskPartition();
virtual void start_request(AsyncBlockDeviceRequest&) override;
// ^BlockDevice
virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
virtual bool can_read(OpenFileDescription const&, u64) const override;
virtual ErrorOr<size_t> write(OpenFileDescription&, u64, UserOrKernelBuffer const&, size_t) override;
virtual bool can_write(OpenFileDescription const&, u64) const override;
Partition::DiskPartitionMetadata const& metadata() const;
private:
DiskPartition(BlockDevice&, MinorNumber, Partition::DiskPartitionMetadata);
virtual StringView class_name() const override;
LockWeakPtr<BlockDevice> m_device;
Partition::DiskPartitionMetadata m_metadata;
};
}