IPP Mail Archive: IPP> OPS - Get rid of Pause-Current-Job, Space-Current-Job, and Cancel

IPP Mail Archive: IPP> OPS - Get rid of Pause-Current-Job, Space-Current-Job, and Cancel

IPP> OPS - Get rid of Pause-Current-Job, Space-Current-Job, and Cancel

Hastings, Tom N (hastings@cp10.es.xerox.com)
Wed, 14 Jul 1999 09:35:48 -0700

Note number 19 questioned whether we really needed Pause-Current-Job.
The advantage of Pause-Current-Job was that the client didn't have to supply
the job-id (but could as a check against the race). On the other hand, the
Pause-Printer doesn't need a job-id. And then the operator could check to
see what was the current job and the use Pause-Job where he MUST supply the
job-id. So I agree that we really don't need Pause-Current-Job.

Note 21-24 dealt with the other Xxxx-Current-Job operations:

In fact, following the same line of reasoning and pruning out operations, do
we really need the other two Xxxx-Current-Job operations: Space-Current-Job
and Cancel-Current-Job? Perhaps the Xxxx-Current-Job operations were more
needed for command line interfaces than for more recent GUI interfaces which
would likely be displaying the job queue with job-ids for all jobs or at
least the current job id.

1. Space-Current-Job when we have Space-Printer which works when there is
and isn't a current job.

We could add an OPTIONAL "job-id" to Space-Printer which would reject the
request if the current job didn't match. This would help the race condition
that the current job might just finish or a new job start just as the
Space-Printer operation was issued.

2. Cancel-Current-Job when we have Cancel-Job as a REQUIRED operation.

Comments?

Tom

-----Original Message-----
From: Hastings, Tom N [mailto:hastings@cp10.es.xerox.com]
Sent: Tuesday, July 13, 1999 12:55
To: ipp
Subject: IPP> OPS - Notes and Agreements on IPP Admin Ops from IPP WG
meeting, 7/7/99 in Copenhagen

snip...

19. Do we really need Pause-Current-Job. Most people felt that Pause-
Job was sufficient.

snip...

21. ISSUE: Does we really need a Space-Current-Job. This seems very
specific to roll-fed printers.

22. ISSUE: Is Space-Current-Job reasonable to do in the 'processing'
state when paper is still moving?

23. ISSUE: In the 'processing-stopped' state, is there a "current"
job?

24. Should be Space-Job with job-id if in spec at all.

snip...