At Mon, 16 Jul 2012 17:33:23 +0100, Tim Brown wrote: > In any case, I will need to invisibleise the pointer when it is no > longer in use by racket (i.e. "legitimately" collectable). What would be > the best way/hook to detect the pointers' end-of-life?
Probably `register-finalizer'. Beware that when you supply a pointer value to `register-finalizer', you're really registering a finalizer on the wrapper object and not the pointer itself; that's usually what you want, but not always. For example, if you register a finalizer on `p', use `cast' to convert `p' to `q', and then retain only `q', the finalizer can be triggered for `p'. ____________________ Racket Users list: http://lists.racket-lang.org/users
