Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!mordor!sri-spam!rutgers!ucla-cs!krowney
From: krowney@MATH.UCLA.EDU
Newsgroups: comp.lang.lisp
Subject: Is LISPcraft mistaken?
Message-ID: <11022@shemp.UCLA.EDU>
Date: 2 Feb 88 20:04:16 GMT
Sender: root@CS.UCLA.EDU
Reply-To: krowney@MATH.UCLA.EDU (Kevin Rowney)
Organization: UCLA Computer Science Department
Lines: 34


	I am having problems with the inter-process communication facilities 
running on Franz Lisp. I am running on a Vax under UNIX, and the following is
a script session:

1) lisp
Franz Lisp, Opus 38.92
-> ;Fire up and get ports to a "wc" process.
(setq ports (*process 'wc t t))
(%from-process %to-process 6550)

-> ;Feed the running "wc" some input
(mapc '(lambda (x) (print x (cadr ports))) '(a b c d))
(a b c d)

-> ;Read any results that might have come back
(read (car ports))
			.
			.
			.
			.
		<NO  RESPONSE>

On pages 265-266 of LISPcraft Wilensky claims the read command will return the
first column of wc's output; however the above read yields nothing and requires
a ^C to get the prompt back.  Does anyone know what is going awry here?
Before you respond please note that I don't care about the "exece" family
of commands in that I am not interested in running simple shell commands, but
rather I would like lisp to talk with a running C process and vice versa.
Also note that I have tried doing a (patom (ascii 4) (cadr ports)) [that is
tossing a ^D to the process in order to tell it the input is done] with the 
same results.  If you have any code to manage interprocess communication between
Franz and C ,all help would be greatly appreciated.

			Thanks