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79fa9765ca
We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace! This was a slightly tedious refactoring that took a long time, so it's not unlikely that some bugs crept in. Nevertheless, it does pass basic functionality testing, and it's just real nice to finally see the same pattern in all contexts. :^)
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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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/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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namespace Kernel {
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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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virtual ~DiskPartition();
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virtual void start_request(AsyncBlockDeviceRequest&) override;
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// ^BlockDevice
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virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
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virtual bool can_read(const OpenFileDescription&, size_t) const override;
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virtual ErrorOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
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virtual bool can_write(const OpenFileDescription&, size_t) const override;
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const DiskPartitionMetadata& metadata() const;
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private:
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DiskPartition(BlockDevice&, unsigned, 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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};
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}
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