Deleting channels...

Robin Iddon <robini@spider.co.uk> Sat, 07 December 1991 14:41 UTC

From: Robin Iddon <robini@spider.co.uk>
Date: Sat, 07 Dec 1991 14:05:21 +0000
Message-Id: <11561.9112071405@orbweb.spider.co.uk>
To: rmonmib@lexcel.com
In-Reply-To: Steve Witten's message of Sat, 07 Dec 91 03:23:34 GM
Subject: Deleting channels...

Hi,

   Given the following scenario:

	   channel A
		   filter B "tied to" channel A
		   filter C "tied to" channel A
		   filter D "tied to" channel A


   If one invalidates channel A, do filters B, C and D get invalidated as
   well?  If not, what happens to them?

   Thanks in advance...


In our implementation nothing happens to the filters.  They hang around
waiting for channel A to re-appear, at which point they bind themselves back
on to it.

IMHO it would be unfriendly to invalidate them - what if the application
deleted the channel merely to re-insert it with different event indices ?  It
wouldn't be too happy having to re-download all those tedious filters again.

   ============================================================================
   Steve Witten                    stevewi%hpspd@hplabs.hp.com
   Intelligent Networks Operation  ...!hplabs!hpspd!stevewi
   Hewlett-Packard Co.             stevewi@hpspd.spd.hp.com

Anybody else?
Robin
Robin Iddon (robini@spider.co.uk)
Spider Systems Ltd
Edinburgh
Scotland