IPP Mail Archive: RE: IPP> Duplicate ippget events

RE: IPP> Duplicate ippget events

From: Hastings, Tom N (hastings@cp10.es.xerox.com)
Date: Fri Jul 27 2001 - 20:39:38 EDT

  • Next message: Hastings, Tom N: "IPP> NOT - 7 issues in the IPPGET spec"

    Michael wrote:

    Even with the multipart encoding, I think there will still be a
    significant number of implementations that don't implement the
    event wait mode.

    Currently, the spec REQUIRES that a Printer that supports ippget Delivery
    Mode, MUST support the Event Wait Mode. Is this an ISSUE?

    Tom

    -----Original Message-----
    From: Michael Sweet [mailto:mike@easysw.com]
    Sent: Friday, July 27, 2001 16:57
    To: Hastings, Tom N
    Cc: Marty Joel; ipp@pwg.org
    Subject: Re: IPP> Duplicate ippget events

    "Hastings, Tom N" wrote:
    > ...
    > However, remember this problem is only for using Get-Notifications
    > in Event No Wait mode (polling). For Event Wait mode, there aren't
    > any duplicate events returned to a Notification Recipient. If we
    > think that the majority of use will be with Event Wait Mode, then we
    > don't need to solve the problem for Event No Wait Mode.

    Even with the multipart encoding, I think there will still be a
    significant number of implementations that don't implement the
    event wait mode, and if we don't provide a way for clients to
    specify what they've already seen then the efficiency of ippget
    in this mode will be quite poor. 

    -- 
______________________________________________________________________
Michael Sweet, Easy Software Products                  mike@easysw.com
Printing Software for UNIX                       http://www.easysw.com

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