Han-Wen Nienhuys <[EMAIL PROTECTED]> writes:
> Neil Jerram escreveu:
>> Do you think you need to do this in C? (You might do, for reasonable
>> performance - I genuinely don't know yet.) The evaluator already has
>> hooks (see "Evaluator trap options" in the manual) that allow you to
>> call out to arbitrary Scheme code at the entry and exit of every
>> frame.
>
> [EMAIL PROTECTED] info]$ guile
> guile> (trap-enable 'enter-frame-handler)
> throw from within critical section.
> Abortado
> [EMAIL PROTECTED] info]$
Takes effect quickly, doesn't it? :-)
What you need is something more like this:
(trap-set! enter-frame-handler
(lambda (key continuation . args)
...))
(trap-enable 'enter-frame)
And it's important to do them in this order.
Regards,
Neil
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