Inherited from posix::basic_descriptor.
Get a const reference to the lowest layer.
const lowest_layer_type & lowest_layer() const;
This function returns a const reference to the lowest layer in a stack
of layers. Since a
posix::basic_descriptor cannot contain
any further layers, it simply returns a reference to itself.
A const reference to the lowest layer in the stack of layers. Ownership is not transferred to the caller.