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Kernel: Move SystemExposed.* => FileSystem/SysFSComponent.*

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This commit is contained in:
Andreas Kling 2021-07-11 01:14:53 +02:00
parent 807aadbe6e
commit d40ea1a0a8
5 changed files with 4 additions and 4 deletions
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60
Kernel/FileSystem/SysFSComponent.h Normal file
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/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Function.h>
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <AK/StringView.h>
#include <AK/Types.h>
#include <Kernel/FileSystem/File.h>
#include <Kernel/FileSystem/FileSystem.h>
#include <Kernel/FileSystem/Forward.h>
#include <Kernel/KResult.h>
namespace Kernel {
class SysFSComponent : public RefCounted<SysFSComponent> {
public:
virtual KResultOr<size_t> entries_count() const { VERIFY_NOT_REACHED(); };
virtual StringView name() const { return m_name->view(); }
virtual KResultOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, FileDescription*) const { VERIFY_NOT_REACHED(); }
virtual KResult traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const { VERIFY_NOT_REACHED(); }
virtual RefPtr<SysFSComponent> lookup(StringView) { VERIFY_NOT_REACHED(); };
virtual KResultOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const&, FileDescription*) { return -EROFS; }
virtual size_t size() const { return 0; }
virtual NonnullRefPtr<Inode> to_inode(SysFS const&) const;
InodeIndex component_index() const { return m_component_index; };
virtual ~SysFSComponent() = default;
protected:
explicit SysFSComponent(StringView name);
private:
NonnullOwnPtr<KString> m_name;
InodeIndex m_component_index {};
};
class SysFSDirectory : public SysFSComponent {
public:
virtual KResultOr<size_t> entries_count() const override { return m_components.size(); };
virtual KResult traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual RefPtr<SysFSComponent> lookup(StringView name) override;
virtual NonnullRefPtr<Inode> to_inode(SysFS const& sysfs_instance) const override final;
protected:
explicit SysFSDirectory(StringView name);
SysFSDirectory(StringView name, SysFSDirectory const& parent_folder);
NonnullRefPtrVector<SysFSComponent> m_components;
RefPtr<SysFSDirectory> m_parent_folder;
};
}