you're essentially replacing
f := open(name, ...)
...
close(f)

which runs as a sequential process, and subject to the usual rules for sequential
composition, by

f := open(name, ...)
...
spawn clunk(f)

which introduces a race with an invisible anonymous process with no means of synchronisation.

what could possibly go wrong with that?

(actually, it's more complex than spawning a new process, but the added complexity of a set of service processes changes the details but not the existence of the race, and doesn't affect the anonymity.)

Hmm, I don't see the race there; perhaps I'm missing something or being blind; could you explain?

Also, if that is racy, isn't this at least analogous?

f := Sys->open(name, ...);

... # put f in a cyclic structure

f = nil;

evil_cyclic = nil;

... # wait until an invisible service process closes it, perhaps later?

Thanks,