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ad3ae7e0e8
Now that all KResult and KResultOr are used consistently throughout the kernel, it's no longer necessary to return negative error codes. However, we were still doing that in some places, so let's fix all those (bugs) by removing the minuses. :^)
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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* Copyright (c) 2021, 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/Function.h>
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#include <AK/RefCounted.h>
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#include <AK/RefPtr.h>
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#include <AK/StringView.h>
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#include <AK/Types.h>
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#include <Kernel/FileSystem/File.h>
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#include <Kernel/FileSystem/FileSystem.h>
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#include <Kernel/Forward.h>
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#include <Kernel/KResult.h>
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namespace Kernel {
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class SysFSComponent : public RefCounted<SysFSComponent> {
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public:
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virtual StringView name() const { return m_name->view(); }
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virtual KResultOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, FileDescription*) const { VERIFY_NOT_REACHED(); }
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virtual KResult traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const { VERIFY_NOT_REACHED(); }
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virtual RefPtr<SysFSComponent> lookup(StringView) { VERIFY_NOT_REACHED(); };
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virtual KResultOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const&, FileDescription*) { return EROFS; }
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virtual size_t size() const { return 0; }
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virtual NonnullRefPtr<Inode> to_inode(SysFS const&) const;
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InodeIndex component_index() const { return m_component_index; };
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virtual ~SysFSComponent() = default;
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protected:
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explicit SysFSComponent(StringView name);
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private:
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NonnullOwnPtr<KString> m_name;
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InodeIndex m_component_index {};
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};
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class SysFSDirectory : public SysFSComponent {
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public:
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virtual KResult traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
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virtual RefPtr<SysFSComponent> lookup(StringView name) override;
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virtual NonnullRefPtr<Inode> to_inode(SysFS const& sysfs_instance) const override final;
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protected:
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explicit SysFSDirectory(StringView name);
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SysFSDirectory(StringView name, SysFSDirectory const& parent_directory);
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NonnullRefPtrVector<SysFSComponent> m_components;
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RefPtr<SysFSDirectory> m_parent_directory;
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};
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}
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