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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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38
Kernel/FileSystem/TmpFS.h
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@ -19,8 +19,8 @@ class TmpFS final : public FileSystem {
public:
virtual ~TmpFS() override;
static KResultOr<NonnullRefPtr<TmpFS>> try_create();
virtual KResult initialize() override;
static ErrorOr<NonnullRefPtr<TmpFS>> try_create();
virtual ErrorOr<void> initialize() override;
virtual StringView class_name() const override { return "TmpFS"sv; }
@ -34,7 +34,7 @@ private:
RefPtr<TmpFSInode> m_root_inode;
HashMap<InodeIndex, NonnullRefPtr<TmpFSInode>> m_inodes;
KResultOr<NonnullRefPtr<Inode>> get_inode(InodeIdentifier identifier) const;
ErrorOr<NonnullRefPtr<Inode>> get_inode(InodeIdentifier identifier) const;
void register_inode(TmpFSInode&);
void unregister_inode(InodeIdentifier);
@ -52,27 +52,27 @@ public:
const TmpFS& fs() const { return static_cast<const TmpFS&>(Inode::fs()); }
// ^Inode
virtual KResultOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
virtual InodeMetadata metadata() const override;
virtual KResult traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual KResultOr<NonnullRefPtr<Inode>> lookup(StringView name) override;
virtual KResult flush_metadata() override;
virtual KResultOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer& buffer, OpenFileDescription*) override;
virtual KResultOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual KResult add_child(Inode&, const StringView& name, mode_t) override;
virtual KResult remove_child(const StringView& name) override;
virtual KResult chmod(mode_t) override;
virtual KResult chown(UserID, GroupID) override;
virtual KResult truncate(u64) override;
virtual KResult set_atime(time_t) override;
virtual KResult set_ctime(time_t) override;
virtual KResult set_mtime(time_t) override;
virtual ErrorOr<void> traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<NonnullRefPtr<Inode>> lookup(StringView name) override;
virtual ErrorOr<void> flush_metadata() override;
virtual ErrorOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer& buffer, OpenFileDescription*) override;
virtual ErrorOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual ErrorOr<void> add_child(Inode&, const StringView& name, mode_t) override;
virtual ErrorOr<void> remove_child(const StringView& name) override;
virtual ErrorOr<void> chmod(mode_t) override;
virtual ErrorOr<void> chown(UserID, GroupID) override;
virtual ErrorOr<void> truncate(u64) override;
virtual ErrorOr<void> set_atime(time_t) override;
virtual ErrorOr<void> set_ctime(time_t) override;
virtual ErrorOr<void> set_mtime(time_t) override;
virtual void one_ref_left() override;
private:
TmpFSInode(TmpFS& fs, const InodeMetadata& metadata, InodeIdentifier parent);
static KResultOr<NonnullRefPtr<TmpFSInode>> try_create(TmpFS&, InodeMetadata const& metadata, InodeIdentifier parent);
static KResultOr<NonnullRefPtr<TmpFSInode>> try_create_root(TmpFS&);
static ErrorOr<NonnullRefPtr<TmpFSInode>> try_create(TmpFS&, InodeMetadata const& metadata, InodeIdentifier parent);
static ErrorOr<NonnullRefPtr<TmpFSInode>> try_create_root(TmpFS&);
void notify_watchers();
struct Child {