Re: Do I still need to use FRCRATIO

[Alan Shore <AlanShore@xxxxxxxx>]

I want to thank everyone for their replies
I learnt a couple of new things from my question.
I did not know about the FEOD verb
I also did not know about the BLOCK(*NO)

Thanks all


Alan Shore
Programmer/Analyst, Distribution
E:AShore@xxxxxxxxxxx
P:(631) 200-5019
C:(631) 880-8640
"If you're going through Hell, keep going" - Winston Churchill

rpg400-l-bounces@xxxxxxxxxxxx wrote on 09/14/2009 08:18:28 AM:

> David,
>
> In order to see a problem, you'd have to be doing two things
> 1) Writing to a file in PGMA in such a manner that RPG does blocking.
> 2) Writing some records in PGMA, then without ending the program or
> closing the file, calling PGMB and expecting it to see the records
> just writing by PGMA.
>
> Regarding 1)
> Basically, you have to write output only to a file.  By default RPG
> will block such output.  Though you can use the BLOCK(*NO) keyword on
> the f-spec to change it.  In addition, the SEQONLY param of OVRDBF can
> effect blocking.
>
> You'll see a compile time diagnostic message:
> RNF7086 - RPG handles blocking for file XXXXXXX. INFDS is updated only
> when blocks of data are transferred.
>
> Here's some more info:
> http://www-912.ibm.com/s_dir/slkbase.
> NSF/0/d6738e1cd37e1f33862565c2007cef79?OpenDocument
>
> In addition, Google is your friend.
>
> HTH,
> Charles Wilt
>
>
> On Mon, Sep 14, 2009 at 2:56 AM, David FOXWELL <David.FOXWELL@agipi.
> com> wrote:
> > That's an interesting piece of information that I'm saving so that
> I'll be able to use it next time, but I'd like to know when to
> implement it. I mean, do we HAVE to discover the problem during the
> test or wait for a program to crash or not work properly first?
> > > -----Message d'origine-----
> > > De : rpg400-l-bounces@xxxxxxxxxxxx
> > > [mailto:rpg400-l-bounces@xxxxxxxxxxxx] De la part de Jon Paris
> > > Envoyé : samedi 12 septembre 2009 19:17
> > > À : rpg400-l@xxxxxxxxxxxx
> > > Objet : Re: Do I still need to use FRCRATIO
> > >
> > > I'd use FEOD with the N extender.  i.e. FEOD(N) filename;
> > >
> > > This version is far more efficient than even the basic FEOD
> > > and better than removing blocking. Its effect is to write the
> > > current updated block back to the OS buffers so that it is
> > > immediately visible to other programs - it just doesn't force
> > > the system to wait while the data is written to disk.
> > >
> > > Avoid closing the file whenever possible.
> > >
> > >
> > > Jon Paris
> > >
> > > www.Partner400.com
> > > www.SystemiDeveloper.com
> > >
> > >
> > >
> > > On 12-Sep-09, at 1:00 PM, rpg400-l-request@xxxxxxxxxxxx wrote:
> > >
> > > > Yes, closing the file should force it to disk.
> > > > Likewise, you could use FEOD (without closing the file) Or
> > > you could
> > > > put BLOCK(*NO) on the F-spec.
> > >
> > > --
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