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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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48
Kernel/FileSystem/ISO9660FileSystem.h
View file

@ -7,12 +7,12 @@
#pragma once
#include <AK/EnumBits.h>
#include <AK/Error.h>
#include <AK/HashMap.h>
#include <AK/NonnullRefPtr.h>
#include <AK/RecursionDecision.h>
#include <AK/StringView.h>
#include <AK/Types.h>
#include <Kernel/API/KResult.h>
#include <Kernel/FileSystem/BlockBasedFileSystem.h>
#include <Kernel/FileSystem/Inode.h>
#include <Kernel/KBuffer.h>
@ -291,7 +291,7 @@ public:
// We need it as an OwnPtr to default-construct this struct.
OwnPtr<KBuffer> blocks;
static KResultOr<NonnullRefPtr<DirectoryEntry>> try_create(u32 extent, u32 length, OwnPtr<KBuffer> blocks)
static ErrorOr<NonnullRefPtr<DirectoryEntry>> try_create(u32 extent, u32 length, OwnPtr<KBuffer> blocks)
{
return adopt_nonnull_ref_or_enomem(new (nothrow) DirectoryEntry(extent, length, move(blocks)));
}
@ -305,10 +305,10 @@ public:
}
};
static KResultOr<NonnullRefPtr<ISO9660FS>> try_create(OpenFileDescription&);
static ErrorOr<NonnullRefPtr<ISO9660FS>> try_create(OpenFileDescription&);
virtual ~ISO9660FS() override;
virtual KResult initialize() override;
virtual ErrorOr<void> initialize() override;
virtual StringView class_name() const override { return "ISO9660FS"sv; }
virtual Inode& root_inode() override;
@ -317,18 +317,18 @@ public:
virtual u8 internal_file_type_to_directory_entry_type(DirectoryEntryView const& entry) const override;
KResultOr<NonnullRefPtr<DirectoryEntry>> directory_entry_for_record(Badge<ISO9660DirectoryIterator>, ISO::DirectoryRecordHeader const* record);
ErrorOr<NonnullRefPtr<DirectoryEntry>> directory_entry_for_record(Badge<ISO9660DirectoryIterator>, ISO::DirectoryRecordHeader const* record);
private:
ISO9660FS(OpenFileDescription&);
KResult parse_volume_set();
KResult create_root_inode();
KResult calculate_inode_count() const;
ErrorOr<void> parse_volume_set();
ErrorOr<void> create_root_inode();
ErrorOr<void> calculate_inode_count() const;
u32 calculate_directory_entry_cache_key(ISO::DirectoryRecordHeader const&);
KResult visit_directory_record(ISO::DirectoryRecordHeader const& record, Function<KResultOr<RecursionDecision>(ISO::DirectoryRecordHeader const*)> const& visitor) const;
ErrorOr<void> visit_directory_record(ISO::DirectoryRecordHeader const& record, Function<ErrorOr<RecursionDecision>(ISO::DirectoryRecordHeader const*)> const& visitor) const;
OwnPtr<ISO::PrimaryVolumeDescriptor> m_primary_volume;
RefPtr<ISO9660Inode> m_root_inode;
@ -347,21 +347,21 @@ public:
ISO9660FS const& fs() const { return static_cast<ISO9660FS const&>(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:
@ -371,7 +371,7 @@ private:
static constexpr size_t max_file_identifier_length = 256 - sizeof(ISO::DirectoryRecordHeader);
ISO9660Inode(ISO9660FS&, ISO::DirectoryRecordHeader const& record, StringView const& name);
static KResultOr<NonnullRefPtr<ISO9660Inode>> try_create_from_directory_record(ISO9660FS&, ISO::DirectoryRecordHeader const& record, StringView const& name);
static ErrorOr<NonnullRefPtr<ISO9660Inode>> try_create_from_directory_record(ISO9660FS&, ISO::DirectoryRecordHeader const& record, StringView const& name);
static InodeIndex get_inode_index(ISO::DirectoryRecordHeader const& record, StringView const& name);
static StringView get_normalized_filename(ISO::DirectoryRecordHeader const& record, Bytes buffer);