[Chicken-users] newbie srfi-38 (shared structure) & records question

[Basile STARYNKEVITCH]

Hello All

(My third batch of questions)

I want to use srfi-38, that is read-with-shared-structure & 
write-with-shared-structure to persistently store & reload (at next 
program invocation) a complex state with shared values. I like very much 
that the persisted state is some textual file. The issue is then to 
store values which contain stuff which cannot be really stored, in 
particular closures (perhaps even continuation closures), mutex, 
threads, etc... My intuition would be that these could be slots in 
records which I do not write (nor re-read) at all. So the record writer 
would write nil for such slots, and at read time some postprocessing 
would be required to fill them appropriately. Specifically, I was 
thinking of persisting my "function-like" values as the name of a 
function, the closed values, ... (closed within my DSL, not only in the 
chicken sense, because there is no way of accessing Chicken closures 
contents.).

First are structures provided in http://chicken.wiki.br/Unit 
data-structures (e.g. queues) correctly persisted using 
write-with-shared-structure & read-with-shared-structure ?

Second are external representations http://chicken.wiki.br/Non-standard 
read syntax  #,(CONSTRUCTORNAME DATUM ...) compatible with 
write-with-shared-structure & read-with-shared-structure ?

Also, does write-with-shared-structure uses the writing routines set on 
records with  define-record-printer ?

Thanks for reading.

Regards.

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Basile STARYNKEVITCH         http://starynkevitch.net/Basile/
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