[racket-dev] FrTime propagation bug

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On 11-01-12 21:26, Gregory Cooper wrote:
> Hi Marijn,
> 
> FrTime propagates changes asynchronously.  When send-event returns,
> there's no guarantee that the event has finished propagating
> through the system. And in general, (value-now b) is not
> well-defined, since asynchronous processing makes it difficult to
> define what "now" means; programs should only call this if they can
> tolerate stale values.

Hi Gregory, so just to make sure I understand the implications of
this: there is no way to do something like the following:


#lang racket

(require frtime)

(define a (event-receiver))
(define b (event-receiver))

(define a+b (... ??? (merge-e a b)))

(send-event a 3)
(send-event b 5)

(... ??? make sure everything is consistent again)

(... ??? get the value 8 out of a+b)


Marijn
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