Re: Message Waiting Indicator

[Don Brown <DBrown@xxxxxxxxxx>]

I had to prompt the crtdspf command to see the data queue parameter - 
never actually realised that was there.

Has anyone actually ever used this in production ?

Just can't think of a use case at the moment but I am sure there are many 
- perhaps a way to monitor a batch job ?

Interested in any experiences from the group.

Cheers

Don






From:   "Peter Dow" <petercdow@xxxxxxxxx>
To:     midrange-l@xxxxxxxxxxxxxxxxxx
Date:   07/07/2020 05:04 AM
Subject:        Re: Message Waiting Indicator
Sent by:        "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxxxxxxxx>



Or do you want your RPG program to be able to respond to other things 
while waiting for the user to press an AID key?

https://www.ibm.com/support/knowledgecenter/en/ssw_ibm_i_71/rbam6/dspfdq.htm


Basically you attach a data queue to the display file, and your program 
waits for data on the data queue.  When the display file has data ready 
for the program, it puts an entry on the data queue, and the program can 
READ from the display file to get the data.  Or some other program can 
place an entry on the data queue, and the program can respond to that, 
possibly by writing additional info to the screen or sending a *STATUS 
message.

--
*Peter Dow* /
Dow Software Services, Inc.
909 793-9050
petercdow@xxxxxxxxx <mailto:petercdow@xxxxxxxxx>
pdow@xxxxxxxxxxxxxx <mailto:pdow@xxxxxxxxxxxxxx> /

On 7/6/2020 11:01 AM, Booth Martin wrote:
> Are you thinking key-at-a-time processing versus screen-at-a-time 
> processing?
>
>
> On 7/6/2020 5:46 AM, Patrik Schindler wrote:
> > Hello,
> >
> > 5250 sessions can show a "message waiting" indicator, as soon as a 
> > message arrives, even if the user isn't hitting return and the screen 
> > doesn't poll like with an invited device.
> >
> > Did anybody find out if this facility can be exploited/duplicated 
> > with "regular" programming for proper screen refreshing, without 
> > constant polling via Invite?
> >
> > Thanks!
> >
> > :wq! PoC
> >
> > PGP-Key: DDD3 4ABF 6413 38DE - https://www.pocnet.net/poc-key.asc