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Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>
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. :^)
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262 changed files with 2415 additions and 2600 deletions
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@ -24,8 +24,8 @@ public:
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// ^CharacterDevice
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virtual bool can_read(const Kernel::OpenFileDescription&, size_t) const override;
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virtual bool can_write(const Kernel::OpenFileDescription&, size_t) const override { return true; }
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virtual Kernel::KResultOr<size_t> read(OpenFileDescription&, u64, Kernel::UserOrKernelBuffer&, size_t) override;
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virtual Kernel::KResultOr<size_t> write(OpenFileDescription&, u64, const Kernel::UserOrKernelBuffer&, size_t) override;
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virtual ErrorOr<size_t> read(OpenFileDescription&, u64, Kernel::UserOrKernelBuffer&, size_t) override;
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virtual ErrorOr<size_t> write(OpenFileDescription&, u64, const Kernel::UserOrKernelBuffer&, size_t) override;
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virtual StringView class_name() const override { return "Console"sv; }
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void put_char(char);
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