RE: Variable length variables and data queues

OK, so specifying a data queue length too large can actually cause the  data
queue to fill quicker, and unnecessarily.

Phil

> -----Original Message-----
> From: owner-rpg400-l@midrange.com [mailto:owner-rpg400-l@midrange.com]On
> Behalf Of Midrange Lists
> Sent: Tuesday, July 24, 2001 6:44 PM
> To: RPG400-L@midrange.com
> Subject: RE: Variable length variables and data queues
>
>
> Yeah - that is my understanding
>
> if the grey matter serves me correctly, the max size of the dtaq is about
> 16meg
>
>
> the length specified on the CRTDTAQ is the equivalent of a record length.
> if you create it with a length of 128, and write 10 bytes to it,
> it "takes"
> (or, "uses" )   128 bytes...
>
> <at the risk of starting a bun fight,>
> kind of takes you back to the days of the s36 flat files..
>
> kevin
>
>
> At 05:58 PM 7/24/2001, you wrote:
> >My understanding is that the CRTDTAQ MAXLEN parameter sets the
> entry length,
> >not the number of bytes allocated for the queue. If MAXLEN =
> 100, each entry
> >on the queue can be a maximum of 100 bytes.
> >
> >Roger
> >
> >-----Original Message-----
> >From: Phil [mailto:sublime78ska@yahoo.com]
> >Sent: Tuesday, July 24, 2001 4:23 PM
> >To: RPG400-L@midrange.com
> >Subject: RE: Variable length variables and data queues
> >
> >
> >The size of the queue - is it the maximum per entry or the maximum of the
> >sum of all entries on the queue?  To keep a queue from filling quickly, I
> >have always made the maximum queue size large so I thought the latter was
> >true.
> >
> >Phil
> >
> > > -----Original Message-----
> > > From: owner-rpg400-l@midrange.com
> [mailto:owner-rpg400-l@midrange.com]On
> > > Behalf Of Denis Robitaille
> > > Sent: Tuesday, July 24, 2001 4:14 PM
> > > To: RPG400-L@midrange.com
> > > Subject: Re: Variable length variables and data queues
> > >
> > >
> > > When you create the data queue, you specify the maximum size of
> > > any entry. But you can put smaller variable in to it. Also, when
> > > you use variable length variable, I think you must also specify
> > > the maximum length allowed
> > >
> > > Denis Robitaille
> > > Directeur services techniques
> > > Cascades Inc
> > > 819 363 5187
> > > fax 819 363 5177
> > >
> > >
> > > >>> ALBartell@taylorcorp.com 07/24/01 03:40pm >>>
> > > I know this has been addressed before here but I can't get onto
> > > the archive
> > > part of midrange.
> > >
> > > I am writing a program to output an XML stream to a data
> queue for a Java
> > > pgm to pick up.  Since I am unsure of how big my XML stream
> could get I
> > > would like to venture into variable length variables but I
> have never done
> > > them before.  I have seen an example before and I thought all I
> > > needed to do
> > > was put the keyword 'variable' on the definition but that
> doesn't seem to
> > > work.  If someone could post an example that would be great.
> > >
> > > Also, I am new to data queues.  Can I write one data queue
> entry that is
> > > 2000 characters in length and then right another entry to the
> same data
> > > queue that is 3000 characters in length?  I already know how
> to write to a
> > > data queue but I don't know if what I described above is allowed.
> > >
> > > Thanks,
> > > Aaron Bartell
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