Path: utzoo!attcan!uunet!mcvax!kth!sunic!maxim!prc
From: prc@erbe.se (Robert Claeson)
Newsgroups: comp.unix.wizards
Subject: Re: preserving message boundaries on named pipes - System V
Message-ID: <683@maxim.erbe.se>
Date: 18 May 89 07:43:39 GMT
References: <571@lehi3b15.csee.Lehigh.EDU>
Reply-To: prc@maxim.UUCP (Robert Claeson)
Organization: Hall of Fame
Lines: 13

In article <571@lehi3b15.csee.Lehigh.EDU> murrey@lehi3b15.csee.Lehigh.EDU (Erik Murrey) writes:

>Is it possible to preserve message boundaries on named pipes under
>System V?  For instance, if a process sends two separate messages (via
>two write()'s) down a named pipe, how can the receiver read those as
>two separate messages?

You can't, as far as I know. I'd suggest you to take a look at message
queues instead. They are also more efficient than pipes since they don't
deal with the file system at all.
-- 
          Robert Claeson      E-mail: rclaeson@erbe.se
	  ERBE DATA AB