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Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>

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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. :^)
This commit is contained in:
Andreas Kling 2021-11-08 00:51:39 +01:00
parent 7ee10c6926
commit 79fa9765ca
262 changed files with 2415 additions and 2600 deletions
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24
Kernel/Graphics/FramebufferDevice.h
View file

@ -24,29 +24,29 @@ class FramebufferDevice final : public GenericFramebufferDevice {
public:
static NonnullRefPtr<FramebufferDevice> create(const GenericGraphicsAdapter&, PhysicalAddress, size_t, size_t, size_t);
virtual KResultOr<Memory::Region*> mmap(Process&, OpenFileDescription&, Memory::VirtualRange const&, u64 offset, int prot, bool shared) override;
virtual ErrorOr<Memory::Region*> mmap(Process&, OpenFileDescription&, Memory::VirtualRange const&, u64 offset, int prot, bool shared) override;
virtual void deactivate_writes() override;
virtual void activate_writes() override;
virtual KResult try_to_initialize() override;
virtual ErrorOr<void> try_to_initialize() override;
virtual bool multihead_support() const override { return false; }
virtual bool flushing_support() const override { return false; }
virtual bool partial_flushing_support() const override { return false; }
virtual size_t heads_count() const override { return 1; }
virtual KResultOr<size_t> buffer_length(size_t head) const override;
virtual KResultOr<size_t> pitch(size_t head) const override;
virtual KResultOr<size_t> height(size_t head) const override;
virtual KResultOr<size_t> width(size_t head) const override;
virtual KResultOr<size_t> vertical_offset(size_t head) const override;
virtual KResultOr<bool> vertical_offseted(size_t head) const override;
virtual ErrorOr<size_t> buffer_length(size_t head) const override;
virtual ErrorOr<size_t> pitch(size_t head) const override;
virtual ErrorOr<size_t> height(size_t head) const override;
virtual ErrorOr<size_t> width(size_t head) const override;
virtual ErrorOr<size_t> vertical_offset(size_t head) const override;
virtual ErrorOr<bool> vertical_offseted(size_t head) const override;
private:
virtual KResult set_head_resolution(size_t head, size_t width, size_t height, size_t pitch) override;
virtual KResult set_head_buffer(size_t head, bool second_buffer) override;
virtual KResult flush_head_buffer(size_t head) override;
virtual KResult flush_rectangle(size_t head, FBRect const&) override;
virtual ErrorOr<void> set_head_resolution(size_t head, size_t width, size_t height, size_t pitch) override;
virtual ErrorOr<void> set_head_buffer(size_t head, bool second_buffer) override;
virtual ErrorOr<void> flush_head_buffer(size_t head) override;
virtual ErrorOr<void> flush_rectangle(size_t head, FBRect const&) override;
FramebufferDevice(const GenericGraphicsAdapter&, PhysicalAddress, size_t, size_t, size_t);