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serenity/Kernel/Storage/Partition/DiskPartition.h
Andreas Kling 4a9c18afb9 Kernel: Rename FileDescription => OpenFileDescription
Dr. POSIX really calls these "open file description", not just
"file description", so let's call them exactly that. :^)
2021-09-07 13:53:14 +02:00

43 lines
1.3 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/RefPtr.h>
#include <Kernel/Devices/BlockDevice.h>
#include <Kernel/Storage/Partition/DiskPartitionMetadata.h>
namespace Kernel {
class DiskPartition final : public BlockDevice {
public:
static NonnullRefPtr<DiskPartition> create(BlockDevice&, unsigned, DiskPartitionMetadata);
virtual ~DiskPartition();
virtual void start_request(AsyncBlockDeviceRequest&) override;
// ^BlockDevice
virtual KResultOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
virtual bool can_read(const OpenFileDescription&, size_t) const override;
virtual KResultOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
virtual bool can_write(const OpenFileDescription&, size_t) const override;
// ^Device
virtual mode_t required_mode() const override { return 0600; }
virtual String device_name() const override;
const DiskPartitionMetadata& metadata() const;
private:
virtual StringView class_name() const override;
DiskPartition(BlockDevice&, unsigned, DiskPartitionMetadata);
NonnullRefPtr<BlockDevice> m_device;
DiskPartitionMetadata m_metadata;
};
}