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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
Notes: sideshowbarker 2024-07-18 23:01:53 +09:00
48 changed files with 591 additions and 506 deletions
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8
Kernel/FileSystem/File.h
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@ -115,13 +115,13 @@ public:
virtual KResultOr<size_t> write(FileDescription&, size_t, const UserOrKernelBuffer&, size_t) = 0;
virtual int ioctl(FileDescription&, unsigned request, FlatPtr arg);
virtual KResultOr<Region*> mmap(Process&, FileDescription&, VirtualAddress preferred_vaddr, size_t offset, size_t size, int prot, bool shared);
virtual KResult stat(::stat&) const { return KResult(-EBADF); }
virtual KResult stat(::stat&) const { return EBADF; }
virtual String absolute_path(const FileDescription&) const = 0;
virtual KResult truncate(u64) { return KResult(-EINVAL); }
virtual KResult chown(FileDescription&, uid_t, gid_t) { return KResult(-EBADF); }
virtual KResult chmod(FileDescription&, mode_t) { return KResult(-EBADF); }
virtual KResult truncate(u64) { return EINVAL; }
virtual KResult chown(FileDescription&, uid_t, gid_t) { return EBADF; }
virtual KResult chmod(FileDescription&, mode_t) { return EBADF; }
virtual const char* class_name() const = 0;