Allow the specific :cf_cre "platform" behaviour to access the full gen_server state

[Andrea Amantini]

in the easiest form :cf_cre delegates a final (catch-all) handle_info to the implemented behaviour:

in a read only fashion something like:

-- cf_cre.erl

handle_info(request, {Mod, rest_of_state}) ->
  apply(Mod, :info, [rest_of_state]),  
  {no_reply, State}

we could consider also the ability to write back to the state,
with a handle_call but that could imply extra undesired blocking of the process...

use case: allow third party cuneiform interpreters to introspect the current state of the runtime:
e.g. the future cache as well as the map of the computed replies.

[Jörgen Brandt]

I seem to have missed that issue. Sry, I reply just now. You are right, of course. Do you need that feature?

[Andrea Amantini]

maybe let's keep this issue open, I'll come with more concrete use cases at some point.

With some past commits of yours we can already access (read) the reply-map and the runtime cache.

This issue would be about a more generic way to access the runtime state
and possibly even modify it...

[Jörgen Brandt]

sure, just tell me when you need it. otherwise, I'd rather keep it simple.

[Jörgen Brandt]

I understand what this issue is about. However, my guess is, no one actually needs that anymore.