IPP> create job IPP operation

IPP> create job IPP operation

IPP> create job IPP operation

Roger K Debry rdebry at us.ibm.com
Fri Jun 13 07:47:24 EDT 1997

I thought at one time we had agreed on sending an empty Send-Document?

The proposal that Keith Carter and I had made included an EndJob, but was

Roger K deBry
Senior Techncial Staff Member
Architecture and Technology
IBM Printing Systems
email: rdebry at us.ibm.com
phone: 1-303-924-4080

---------------------- Forwarded by Roger K Debry/Boulder/IBM on 06/13/97 05:41
AM ---------------------------

        ipp-owner @ pwg.org
        06/12/97 08:02 PM
Please respond to ipp-owner at pwg.org @ internet

To: rturner @ sharplabs.com @ internet, ipp @ pwg.org @ internet
Subject: Re: IPP> create job IPP operation

Option 1 (flag for last document) is the best and only reasonable solution.

Option 3 (end job operation) can be accomplished with Option 1 by
allowing a document of length zero and the last flag on for clients
that cannot figure out they are done when they send the last document.

Bob Herriot

> From rturner at sharplabs.com Thu Jun 12 17:13:25 1997.

> In our current document we have a CREATE-JOB operation that specifies up
> front
> how many documents we have. Is this an unrealistic requirement for
> future IPP
> clients (or drivers) ? Will they always know how many documents are
> coming when
> they first do the CREATE-JOB?
> My feeling is that the clients might not know how many documents will be
> sent, and
> if that is the case, we need a mechanism for SEND-DOCUMENT to indicate
> to
> the server that this is the last document for the job. There are at
> least 3 ways to do
> this off the top of my head:
> 1. Have a specific SEND-DOCUMENT attribute or parameter that flags a
> particular
>     request as the last document for the job.
> 2. Since we are using HTTP 1.1 with persistent connections, just close
> the TCP
>     connection from client to host indicating the end of the job stream
> (or last document).
> 3. Have another IPP operation called END-JOB or CLOSE-JOB that
> unambiguously
>     encapsulates the job stream within a CREATE-JOB/END-JOB pair.
> Comments?
> Randy

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