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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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10
Kernel/FileSystem/AnonymousFile.h
View file

@ -13,22 +13,22 @@ namespace Kernel {
class AnonymousFile final : public File {
public:
static KResultOr<NonnullRefPtr<AnonymousFile>> try_create(NonnullRefPtr<Memory::AnonymousVMObject> vmobject)
static ErrorOr<NonnullRefPtr<AnonymousFile>> try_create(NonnullRefPtr<Memory::AnonymousVMObject> vmobject)
{
return adopt_nonnull_ref_or_enomem(new (nothrow) AnonymousFile(move(vmobject)));
}
virtual ~AnonymousFile() override;
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;
private:
virtual StringView class_name() const override { return "AnonymousFile"sv; }
virtual KResultOr<NonnullOwnPtr<KString>> pseudo_path(const OpenFileDescription&) const;
virtual ErrorOr<NonnullOwnPtr<KString>> pseudo_path(const OpenFileDescription&) const;
virtual bool can_read(const OpenFileDescription&, size_t) const override { return false; }
virtual bool can_write(const OpenFileDescription&, size_t) const override { return false; }
virtual KResultOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override { return ENOTSUP; }
virtual KResultOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override { return ENOTSUP; }
virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override { return ENOTSUP; }
virtual ErrorOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override { return ENOTSUP; }
explicit AnonymousFile(NonnullRefPtr<Memory::AnonymousVMObject>);