Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!dogie.macc.wisc.edu!indri!polyslo!vlsi3b15!lehi3b15!murrey
From: murrey@lehi3b15.csee.Lehigh.EDU (Erik Murrey)
Newsgroups: comp.unix.wizards
Subject: preserving message boundaries on named pipes - System V
Message-ID: <571@lehi3b15.csee.Lehigh.EDU>
Date: 17 May 89 15:51:07 GMT
Reply-To: murrey@lehi3b15.csee.Lehigh.EDU (Erik Murrey)
Organization: CSEE Dept. Lehigh University, Bethlehem, PA
Lines: 19

System V.3.1 Unix

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?  It seems that right now, if the reading
process unblocks after both writes have completed, then it gets *both*
messages in one read.

I really don't wan't to muck with terminating null characters, and
the like...

... Erik

-- 
Erik Murrey
Lehigh University
murrey@csee.Lehigh.EDU
erik@mpx.com