Path: utzoo!utgpu!water!watmath!jagardner
From: jagardner@watmath.waterloo.edu (Jim Gardner)
Newsgroups: comp.lang.c
Subject: Re: Variable-length messages.
Message-ID: <21602@watmath.waterloo.edu>
Date: 21 Oct 88 09:43:40 GMT
References: <LJZ.88Oct20131114%fxgrp.fx.com@ames.arc.nasa.gov>
Reply-To: jagardner@watmath.waterloo.edu (Jim Gardner)
Organization: U. of Waterloo, Ontario
Lines: 9


From Waterloo Port comes another way to do it:

#define sendMessage(id,msg)  _sendMessage(id, &(msg), sizeof(msg))
#define receiveMessage(id,msg)	_receiveMessage(id, &(msg), sizeof(msg))

where msg is a struct. If you have a lot of data to pass, you pass a
buffer address and call another routine (Transfer_to or Transfer_from
in Port) to move the data between processes.