"Raab, Andreas" wrote:

> Callbacks are currently not support in the FFI stuff. There is more than one
> reason for it but for me the primary reason is that adding callbacks has
> some serious implications on the general working of the VM - so I was trying
> to avoid an (in my understanding unnecessary) complication for the
> forthcoming J3.

    A while ago a thought of a portable way of implementing something like callbacks. Indeed I just realized how it's implemented in Squeak.
    Isn't it possible to provide a portable callback mechanism using Semaphores?

    Callbacker Bye!
    Richie++

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