From:	(Justin Mason)	Date:	Wed Mar 21 09:49:00 2007
Subject:	Re: cancelling queued items

Brian Duggan writes:
> Hello,
> 
> I'm using IPC::DirQueue -- very nice module, thanks.
> 
> I wanted the ability to cancel not-yet-active items from 
> anywhere in the queue (a la lprm), and was trying
> to think of a safe way to do it.  It occurred to me
> that one easy modification to IPC::DirQueue that would
> allow this would be to have pickup_queued_job() take
> an optional parameter which is the name of the data path,
> and then just add something like
> 
> 	 next if exists($args{datapath}) &&
> 		 $nextfile ne $args{datapath};
> 
> to the while loop.  
> 
> Any chance this could be incorporated?  Or is there
> already another safe way to cancel an item?

It sounds pretty good -- just one thing -- how is a caller supposed to get
the datapath?  Presumably they don't construct it themselves...

> thanks
> Brian
> 
> (p.s. happy to send a patch if you prefer)

that's ok, that suggestion is a one-liner. Having said that -- a test case
"t" script would rock though :)

--j.