Yes I do. Effectively I want to support message passing across
distributed & asynchronous systems which supports the appearance of
sequential code, even though it's really suspending and then waking back
up again when a response becomes available.
So running something like:
(<<- my-actor 'some-method)
Triggers the following code, elsewhere:
;; ...
(define resume-data
(call-with-composable-continuation
(lambda (k)
(abort-current-continuation actor-prompt-tag k to sys-method
kws kw-args args))
actor-prompt-tag))
;; ...
So this is during a message send where we want our code to suspend, but
then when the other actor sends a response, this code is woken back up
again.
You can see more here:
https://gitlab.com/spritely/goblins/blob/eff201e93bc01e73baef160cfa798e993dddc73b/goblins/actors.rkt#L127
https://gitlab.com/spritely/goblins/blob/eff201e93bc01e73baef160cfa798e993dddc73b/goblins/actors.rkt#L338
Linked to a specific commit, as some of that code is about to go through
overhaul.
Matthias Felleisen writes:
> Do you manipulate delimited continuations with explicit prompts somewhere?
>
>
>> On Oct 23, 2018, at 7:38 PM, Christopher Lemmer Webber
>> <cweb...@dustycloud.org> wrote:
>>
>> Christopher Lemmer Webber writes:
>>
>>> Christopher Lemmer Webber writes:
>>>
>>>> Somehow I'm triggering this error in Goblins.
>>>>
>>>> ; Dynamic-wind record doesn't match prompt!
>>>>
>>>> I am doing some things with delimited continuations. I'm guessing
>>>> that's related, but I'm not sure why/how one might expect to trigger
>>>> this error. Any ideas?
>>>>
>>>> Thoughts?
>>>> - Chris
>>>
>>> Hm okay, my code is making things run out of memory I think and that's
>>> causing weird errors :)
>>>
>>> I'll try to figure out the source of that.
>>
>> Never mind, it's still happening regardless of the memory issue, but
>> inconsistently. I'm not sure of the source of the error.
>>
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