Function base::sys::unix::descriptor::clone_descriptor    
source ยท pub fn clone_descriptor(
    descriptor: &(impl AsRawDescriptor + ?Sized),
) -> Result<SafeDescriptor>Expand description
Clones descriptor, returning a new SafeDescriptor that refers to the same file
descriptor. The cloned descriptor will have the FD_CLOEXEC flag set but will not share any
other file descriptor flags with descriptor.