guile as extension language

[Matthew R Wette]

How is Guile intended to be used as an extension language?

Some extension languages like Perl can be fed commands from the main
application.  I believe the Apache Perl module works this way.

Other extension languages can not be run this way and need to execute
in a separate process, typically communicating via a socket
connection.  I believe the Apache Java servlet modules work this way.

I just read through the Guile 1.5.6 code and it seems that Guile
cannot be fed commands from a parent application like the first case
above.  If you want to use Guile as an *extension* language you need
to run it in a separate process and talk via sockets.  For example, if
I wanted to generate a Guile Apache module it seems I would need to do
it this way.  Is this correct?  

Matt