marshalling objects

[Pietro Abate <Pietro.Abate@anu.edu.au>]

Hi all,

It's not clear to me if it is possible or not to marshall objects ? From
my tests it is not the case (output_value: abstract value (outside
heap).). Am I missing something ? What is common practice to send
objects across the wire ?

thanks,
p

--------- ex.ml

class node = object val d = 1 end ;;

let l =
    try
        let a = (new node) in
        let s = (Marshal.to_string a [])
        in print_endline "Success"; (Marshal.from_string s 0 : node)
    with Invalid_argument s -> print_endline ("Failed "^s) ; (new node)
;;

let l =
    try
        let a = (new node) in
        let s = (Marshal.to_string a [Marshal.Closures])
        in print_endline "Success"; (Marshal.from_string s 0 : node)
    with Invalid_argument s -> print_endline ("Failed "^s) ; (new node)
;;

let l =
    try
        let a = (new node) in
        let s = (Marshal.to_string a [Marshal.No_sharing])
        in print_endline "Success"; (Marshal.from_string s 0 : node)
    with Invalid_argument s -> print_endline ("Failed "^s) ; (new node)
;;

let l =
    try
        let a = (new node) in
        let s = (Marshal.to_string a [Marshal.No_sharing;Marshal.Closures])
        in print_endline "Success"; (Marshal.from_string s 0 : node)
    with Invalid_argument s -> print_endline ("Failed "^s) ; (new node)
;;


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