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Kernel+LibC: Turn errno codes into a strongly typed enum

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..and allow implicit creation of KResult and KResultOr from ErrnoCode.
This means that kernel functions that return those types can finally
do "return EINVAL;" and it will just work.

There's a handful of functions that still deal with signed integers
that should be converted to return KResults.
This commit is contained in:
Andreas Kling 2021-01-20 23:11:17 +01:00
parent e279b45aed
commit 19d3f8cab7
48 changed files with 591 additions and 506 deletions
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4
Kernel/FileSystem/InodeWatcher.cpp
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@ -77,14 +77,14 @@ KResultOr<size_t> InodeWatcher::read(FileDescription&, size_t, UserOrKernelBuffe
return (ssize_t)data_bytes;
});
if (nwritten < 0)
return KResult(nwritten);
return KResult((ErrnoCode)-nwritten);
evaluate_block_conditions();
return bytes_to_write;
}
KResultOr<size_t> InodeWatcher::write(FileDescription&, size_t, const UserOrKernelBuffer&, size_t)
{
return KResult(-EIO);
return EIO;
}
String InodeWatcher::absolute_path(const FileDescription&) const