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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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44
Kernel/FileSystem/SysFS.h
View file

@ -19,7 +19,7 @@ class SysFSRootDirectory final : public SysFSDirectory {
public:
static NonnullRefPtr<SysFSRootDirectory> create();
virtual KResult traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
private:
SysFSRootDirectory();
@ -53,7 +53,7 @@ private:
class SysFSBlockDevicesDirectory final : public SysFSDirectory {
public:
static NonnullRefPtr<SysFSBlockDevicesDirectory> must_create(SysFSDevicesDirectory const&);
virtual KResult traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual RefPtr<SysFSComponent> lookup(StringView name) override;
private:
@ -63,7 +63,7 @@ private:
class SysFSCharacterDevicesDirectory final : public SysFSDirectory {
public:
static NonnullRefPtr<SysFSCharacterDevicesDirectory> must_create(SysFSDevicesDirectory const&);
virtual KResult traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual RefPtr<SysFSComponent> lookup(StringView name) override;
private:
@ -111,9 +111,9 @@ class SysFS final : public FileSystem {
public:
virtual ~SysFS() override;
static KResultOr<NonnullRefPtr<SysFS>> try_create();
static ErrorOr<NonnullRefPtr<SysFS>> try_create();
virtual KResult initialize() override;
virtual ErrorOr<void> initialize() override;
virtual StringView class_name() const override { return "SysFS"sv; }
virtual Inode& root_inode() override;
@ -129,26 +129,26 @@ class SysFSInode : public Inode {
friend class SysFSDirectoryInode;
public:
static KResultOr<NonnullRefPtr<SysFSInode>> try_create(SysFS const&, SysFSComponent const&);
static ErrorOr<NonnullRefPtr<SysFSInode>> try_create(SysFS const&, SysFSComponent const&);
StringView name() const { return m_associated_component->name(); }
protected:
SysFSInode(SysFS const&, SysFSComponent const&);
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;
virtual KResultOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const&, OpenFileDescription*) override;
virtual KResultOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual KResult add_child(Inode&, StringView const& name, mode_t) override;
virtual KResult remove_child(StringView const& name) override;
virtual KResult chmod(mode_t) override;
virtual KResult chown(UserID, GroupID) override;
virtual KResult truncate(u64) override;
virtual KResult set_mtime(time_t);
virtual ErrorOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const&, OpenFileDescription*) override;
virtual ErrorOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual ErrorOr<void> add_child(Inode&, StringView const& name, mode_t) override;
virtual ErrorOr<void> remove_child(StringView const& 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_mtime(time_t);
virtual KResult attach(OpenFileDescription& description) override final;
virtual ErrorOr<void> attach(OpenFileDescription& description) override final;
virtual void did_seek(OpenFileDescription&, off_t) override final;
NonnullRefPtr<SysFSComponent> m_associated_component;
@ -158,7 +158,7 @@ class SysFSDirectoryInode : public SysFSInode {
friend class SysFS;
public:
static KResultOr<NonnullRefPtr<SysFSDirectoryInode>> try_create(SysFS const&, SysFSComponent const&);
static ErrorOr<NonnullRefPtr<SysFSDirectoryInode>> try_create(SysFS const&, SysFSComponent const&);
virtual ~SysFSDirectoryInode() override;
SysFS& fs() { return static_cast<SysFS&>(Inode::fs()); }
@ -168,8 +168,8 @@ protected:
SysFSDirectoryInode(SysFS const&, SysFSComponent const&);
// ^Inode
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 ErrorOr<void> traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<NonnullRefPtr<Inode>> lookup(StringView name) override;
};
}