Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!loyola!jason
From: jason@loyola.UUCP (Jason Levitt)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: Distributed IPC Queues in a RT Cluster...
Message-ID: <1050@loyola.UUCP>
Date: 24 Feb 89 04:42:08 GMT
References: <22857@adelie.Adelie.COM>
Reply-To: jason@loyola.UUCP (Jason Levitt)
Distribution: usa
Organization: Comstock Connections. Austin, Texas
Lines: 21

In article <22857@adelie.Adelie.COM> sean@adelie.Adelie.COM (Sean Conway) writes:
>Does anyone have any experience with Distributed IPC Queues in a
>RT Cluster:
>    ........
>
>Specifically, I can't seem to define keys longer than seven digits long,
>even though, my program on a call to ftok() returns keys eight digits long.
>

I haven't used Distributed Services (DS) since the pre-1.0
days, but it used to be that the IPC key space allowed keys 
in the range 0x0 - 0xffffffff .
  Of those keys, the ones available to users were:

   0x30000 - 0xfffff  -- keys returned by create_ipc_prof(3)

   0x10000000 - 0xffffffff - keys returned by ftok(3)

   The rest of the keys are unavailable.         

     ---Jason