RE: Chain and Readc

Yes Dennis, I run debugger about a hundred times (I am exaggerating, but
believe me, it felt like that) with all kind of possible combinations;
and yes, the subroutine was executed (v_hazfrt was always 'N' at
beginning of the subroutine). As you can, also, see from my main program
code, between the subroutine and READC opcode it was only another
command (eval *in35 = *off - okay, it is a 'move', but it wasn't written
by me!) and the start of do loop...
During my on-line research to find a solution (I cry for help to this
list only when I feel like I am losing my mind), I found something
almost identical, but Paul Tuohy (sorry Paul!) said it is no necessary
any action on subfile control between Chain and Readc (someone suggested
that). It turns out that it is, like Scott said...


Thank you,


Florin Todor



-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Dennis Lovelady
Sent: Thursday, September 30, 2010 6:41 PM
To: 'RPG programming on the IBM i / System i'
Subject: RE: Chain and Readc

Yes, you said that. What we don't know, is whether the READC doesn't
work
because the subroutine sr_chkhaz doesn't do anything (v_hazfrt is not
"N" at
start of SR), or if it's some other reason. Maybe there are other
READs/CHAINs along the way - we don't know. We need to rely on your
input
in order to help us help you.

So with that, again, have you run this through Debug?

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
Fine: (n) A tax for doing wrong.
Tax: (n) A fine for doing well.

I specified after "doesn't work" that READC doesn't see the changes;

it

looks like my updates to the subfile records were not "comitted" (if I
can say it like that) until I issued a WRITE opcode for the SFLCTL, as
Scott pointed out (actually I had this WRITE opcode, but the

indicators

were wrong...)


Thank you


Florin Todor





-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Dennis Lovelady
Sent: Thursday, September 30, 2010 3:36 PM
To: 'RPG programming on the IBM i / System i'
Subject: RE: Chain and Readc

Are you sure v_hazfrt = 'N' at the beginning of the SR?

What does "doesn't work" mean? Have you run this in debug? Have you
stepped past the UPDATE statement et cetera? What conditions can you
tell
us about the way it runs beyond "doesn't work?"

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
Flashlight: (n) A case for holding dead batteries.

I have an issue, which, in my opinion shouldn't be an issue at all
because it is pretty straight forward...



Anyway, I have a subfile where I need to check (for ALL records) if

a

specific field has a certain value. I do this using CHAIN RRN

op-code.

I, also, want to make EVERY record available for the next READC
operation; pretty simple, right? The only problem is it doesn't

work!

The READC does not see any "changed" record...



Here is the relevant code:



C sr_chkhaz begsr

/Free

s1rrn = 1;

Dow s1rrn <= 30 and

sr_chkhaz = 'N';

Chain s1rrn R010D02;

If %found();

If #DHAZ = 'X' or

#DHAZ = 'H';

v_hazfrt = 'Y';

Endif;

*in37 = *on;

Update R010D02;

*in37 = *off;

Endif;

s1rrn += 1;

Enddo;

s1rrn = 1;

Write R010D03;

/End-free

C endsr



*in37 turns on/off SFLNXTCHG for R010D02 Subfile record:



A R R010D02 SFL

A 37

AO 69 SFLNXTCHG





The excerpt of the main program:



......................................................



C exsr sr_chkhaz

C move *off *in35

C *in35 doweq *off

C readc r010d02

35

<<<<<<----------*in35 is turned *on

C *in35 ifeq *off

........................................................................

.............





Any thoughts?







Thank you





Florin Todor



<mailto:ftodor@xxxxxxxxxxxxxxxx>



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