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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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46
Kernel/FileSystem/DevTmpFS.h
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@ -20,9 +20,9 @@ class DevTmpFS final : public FileSystem {
public:
virtual ~DevTmpFS() override;
static KResultOr<NonnullRefPtr<DevTmpFS>> try_create();
static ErrorOr<NonnullRefPtr<DevTmpFS>> try_create();
virtual KResult initialize() override;
virtual ErrorOr<void> initialize() override;
virtual StringView class_name() const override { return "DevTmpFS"sv; }
virtual Inode& root_inode() override;
@ -48,18 +48,18 @@ public:
protected:
explicit DevTmpFSInode(DevTmpFS&);
DevTmpFSInode(DevTmpFS&, unsigned, unsigned);
virtual KResultOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) 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 ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const 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 InodeMetadata metadata() const override final;
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 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;
mode_t m_mode { 0600 };
UserID m_uid { 0 };
@ -96,8 +96,8 @@ private:
virtual Type node_type() const override { return m_block_device ? Type::BlockDevice : Type::CharacterDevice; }
// ^Inode
virtual KResultOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
virtual KResultOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer& buffer, OpenFileDescription*) override;
virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
virtual ErrorOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer& buffer, OpenFileDescription*) override;
NonnullOwnPtr<KString> m_name;
const bool m_block_device;
@ -117,8 +117,8 @@ protected:
virtual Type node_type() const override { return Type::Link; }
// ^Inode
virtual KResultOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
virtual KResultOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer& buffer, OpenFileDescription*) override;
virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
virtual ErrorOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer& buffer, OpenFileDescription*) override;
NonnullOwnPtr<KString> m_name;
OwnPtr<KString> m_link;
@ -136,10 +136,10 @@ protected:
// ^DevTmpFSInode
virtual Type node_type() const override { return Type::Directory; }
virtual KResultOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual KResult remove_child(const StringView& name) override;
virtual KResult traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual KResultOr<NonnullRefPtr<Inode>> lookup(StringView name) override;
virtual ErrorOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual ErrorOr<void> remove_child(const StringView& name) override;
virtual ErrorOr<void> traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<NonnullRefPtr<Inode>> lookup(StringView name) override;
DevTmpFSDirectoryInode(DevTmpFS&, NonnullOwnPtr<KString> name);
// ^Inode
OwnPtr<KString> m_name;
@ -161,8 +161,8 @@ private:
virtual Type node_type() const override { return Type::Directory; }
explicit DevTmpFSRootDirectoryInode(DevTmpFS&);
virtual KResult chmod(mode_t) override;
virtual KResult chown(UserID, GroupID) override;
virtual ErrorOr<void> chmod(mode_t) override;
virtual ErrorOr<void> chown(UserID, GroupID) override;
};
}