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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
Download patch file Download diff file Expand all files Collapse all files

34
Kernel/FileSystem/DevPtsFS.cpp
View file

@ -12,7 +12,7 @@
namespace Kernel {
KResultOr<NonnullRefPtr<DevPtsFS>> DevPtsFS::try_create()
ErrorOr<NonnullRefPtr<DevPtsFS>> DevPtsFS::try_create()
{
return adopt_nonnull_ref_or_enomem(new (nothrow) DevPtsFS);
}
@ -25,7 +25,7 @@ DevPtsFS::~DevPtsFS()
{
}
KResult DevPtsFS::initialize()
ErrorOr<void> DevPtsFS::initialize()
{
m_root_inode = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) DevPtsFSInode(*this, 1, nullptr)));
m_root_inode->m_metadata.inode = { fsid(), 1 };
@ -34,7 +34,7 @@ KResult DevPtsFS::initialize()
m_root_inode->m_metadata.gid = 0;
m_root_inode->m_metadata.size = 0;
m_root_inode->m_metadata.mtime = mepoch;
return KSuccess;
return {};
}
static unsigned inode_index_to_pty_index(InodeIndex inode_index)
@ -53,7 +53,7 @@ Inode& DevPtsFS::root_inode()
return *m_root_inode;
}
KResultOr<NonnullRefPtr<Inode>> DevPtsFS::get_inode(InodeIdentifier inode_id) const
ErrorOr<NonnullRefPtr<Inode>> DevPtsFS::get_inode(InodeIdentifier inode_id) const
{
if (inode_id.index() == 1)
return *m_root_inode;
@ -85,12 +85,12 @@ DevPtsFSInode::~DevPtsFSInode()
{
}
KResultOr<size_t> DevPtsFSInode::read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const
ErrorOr<size_t> DevPtsFSInode::read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const
{
VERIFY_NOT_REACHED();
}
KResultOr<size_t> DevPtsFSInode::write_bytes(off_t, size_t, const UserOrKernelBuffer&, OpenFileDescription*)
ErrorOr<size_t> DevPtsFSInode::write_bytes(off_t, size_t, const UserOrKernelBuffer&, OpenFileDescription*)
{
VERIFY_NOT_REACHED();
}
@ -105,7 +105,7 @@ InodeMetadata DevPtsFSInode::metadata() const
return m_metadata;
}
KResult DevPtsFSInode::traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)> callback) const
ErrorOr<void> DevPtsFSInode::traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)> callback) const
{
if (identifier().index() > 1)
return ENOTDIR;
@ -121,10 +121,10 @@ KResult DevPtsFSInode::traverse_as_directory(Function<bool(FileSystem::Directory
}
});
return KSuccess;
return {};
}
KResultOr<NonnullRefPtr<Inode>> DevPtsFSInode::lookup(StringView name)
ErrorOr<NonnullRefPtr<Inode>> DevPtsFSInode::lookup(StringView name)
{
VERIFY(identifier().index() == 1);
@ -135,7 +135,7 @@ KResultOr<NonnullRefPtr<Inode>> DevPtsFSInode::lookup(StringView name)
if (!pty_index.has_value())
return ENOENT;
return SlavePTY::all_instances().with([&](auto& list) -> KResultOr<NonnullRefPtr<Inode>> {
return SlavePTY::all_instances().with([&](auto& list) -> ErrorOr<NonnullRefPtr<Inode>> {
for (SlavePTY& slave_pty : list) {
if (slave_pty.index() != pty_index.value())
continue;
@ -145,32 +145,32 @@ KResultOr<NonnullRefPtr<Inode>> DevPtsFSInode::lookup(StringView name)
});
}
KResult DevPtsFSInode::flush_metadata()
ErrorOr<void> DevPtsFSInode::flush_metadata()
{
return KSuccess;
return {};
}
KResult DevPtsFSInode::add_child(Inode&, const StringView&, mode_t)
ErrorOr<void> DevPtsFSInode::add_child(Inode&, const StringView&, mode_t)
{
return EROFS;
}
KResultOr<NonnullRefPtr<Inode>> DevPtsFSInode::create_child(StringView, mode_t, dev_t, UserID, GroupID)
ErrorOr<NonnullRefPtr<Inode>> DevPtsFSInode::create_child(StringView, mode_t, dev_t, UserID, GroupID)
{
return EROFS;
}
KResult DevPtsFSInode::remove_child(const StringView&)
ErrorOr<void> DevPtsFSInode::remove_child(const StringView&)
{
return EROFS;
}
KResult DevPtsFSInode::chmod(mode_t)
ErrorOr<void> DevPtsFSInode::chmod(mode_t)
{
return EROFS;
}
KResult DevPtsFSInode::chown(UserID, GroupID)
ErrorOr<void> DevPtsFSInode::chown(UserID, GroupID)
{
return EROFS;
}