[plt-scheme] writing structures

Hi there,

I am trying to serialize a structure I created using:

(define-struct my-struct (field1 field2 field3))
(define s (make-my-struct 1 2 3))

Ideally I would like to simply use:

(write s port)

and

(define s (read port))

Is something like this possible? 

Thanks in advance,
-p