Path: utzoo!utgpu!watserv1!watmath!att!att!rutgers!cs.utexas.edu!swrinde!ucsd!ucbvax!DDATHD21.BITNET!XBR4DB26
From: XBR4DB26@DDATHD21.BITNET (OLAF THUN)
Newsgroups: comp.sys.apollo
Subject: Problems with inter process commnication (ipc)
Message-ID: <9011050722.AA10654@umix.cc.umich.edu>
Date: 5 Nov 90 07:21:08 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 20

We are running a selfmade programmsystem with up to 8 indepented
processes. They communicating with ipcs to sysnchronize them.
But very often we have problems with the ipcs. The errormessage is:

socket empty  by the call ipc_rcv()

Before we try to receive the ipc we wait for it with the function
ipc_wait(). If this function returns with the status OK we try to get
the datagram with ipc_rcv(). Then we often get the errormessage socket
empty.

Can anybody help us?

We have DN3000 and DN3500 maschines with AEGIS 9.7.

Olaf Thun
xbr4db26@ddathd21
Institut fuer Elektrische Energieversorgung
TH Darmstadt
Germany