fn insert_fd_locked(
fd_map: &mut FdList,
_state: &WasiState,
adjusted_rights: Rights,
adjusted_rights_inheriting: Rights,
fs_flags: Fdflags,
fd_flags: Fdflagsext,
open_flags: u16,
inode: InodeGuard,
with_fd: Option<Fd>,
) -> Result<Fd, Errno>