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EIBCALEN 0 even if we pass LEN and FROM on START Command


IBM Mainframe Forums -> CICS
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anandsabapathi

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Joined: 19 Nov 2021
Posts: 1
Location: USA

PostPosted: Fri Nov 19, 2021 2:56 am
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Im trying to start a transaction that invokes Application Program to receive information from Commarea and process the data.
I use below command on TERM (CLEAR).

Code:

CECI START TRAN(YD**) FROM('TEST DATA ') LENGTH(10)


Command becomes successful. But when I see the output (I use display statements to see what happens) it goes into EIBCALEN=0 part.

Code:

 LINKAGE SECTION.                                       
*01 DFHCOMMAREA                 PIC X(16).               
 01 DFHCOMMAREA.                                         
    05 CA-MQ-AREA               PIC X(16).               
    05 CA-BATCH-AREA            REDEFINES CA-MQ-AREA.   
       10 CAB-HEADER            PIC X(05) VALUE 'BATCH'.
          88 CA-BATCH           VALUE 'BATCH'.           
       10 CAB-TIMESTAMP         PIC X(26).               
       10 CAB-MASTER            PIC X(10).               
       10 CAB-MSG-TY            PIC X(10).               
                                                         
 PROCEDURE DIVISION USING DFHCOMMAREA.                   
                                                         
 MAIN-PARA.                                             
                                                         
     PERFORM 0000-INITIAL-TASKS                         
        THRU 0000-EXIT                                   
...
...
0000-INITIAL-TASKS.                                         
    SET  NOT-ENQUED                                         
        ,SW-SUCCESS                                         
        ,SW-MORE-JCL                                       
        ,SW-RUN                                             
        ,SW-NEXT-MSG                                       
        ,SW-PROCEED                   TO TRUE               
    MOVE SPACES                       TO WS-LEAVE-PARM-VALUE
* VALIDATE INVOKE METHOD                                   
    IF EIBCALEN = ZERO                                     
       MOVE 'DFHCOMMAREA MISSING, CONTACT SYSTEMS'         
                                      TO WS-ERROR-MESSAGE   
       DISPLAY WS-ERROR-MESSAGE                             
    ELSE                                                   
       DISPLAY THIS-PROGRAM ' RECEIVED MESSAGE IN COMMAREA'


OUTPUT:
Code:

    YD** 20211118110855 DFHCOMMAREA MISSING, CONTACT SYSTEMS   


I want my application program to go into the ELSE Part to receive the commarea info and process it. Please advise if Im missing something here.

Note: Same Application program is tied up to other transaction which always LINKs this program using Comm Area. it gets triggered from MQ.
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Robert Sample

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Joined: 06 Jun 2008
Posts: 8593
Location: Dubuque, Iowa, USA

PostPosted: Fri Nov 19, 2021 7:17 am
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The code is behaving correctly; it is your understanding that is incorrect. If you want to see your data, you will need to do
Code:
EXEC CICS RECEIVE
to retrieve the terminal data. If you want to use COMMAREA, you have to use a START with COMMAREA specified -- which your code does not do. Your 'TEST DATA' is NOT part of any COMMAREA.
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Rohit Umarjikar

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Joined: 21 Sep 2010
Posts: 2815
Location: NYC,USA

PostPosted: Fri Nov 19, 2021 7:54 am
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Or you can do the right way by putting a message in mq and let it run systemstically.
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Robert Sample

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Joined: 06 Jun 2008
Posts: 8593
Location: Dubuque, Iowa, USA

PostPosted: Fri Nov 19, 2021 10:24 pm
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I don't know how CECI would handle this, but you could code
Code:
CECI RETURN TRANSID('YD**') COMMAREA('TEST COMM ') LENGTH(10)
if you wanted to test your COMMAREA processing. Note that START will not allow you to put a COMMAREA on it.
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Robert Sample

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Joined: 06 Jun 2008
Posts: 8593
Location: Dubuque, Iowa, USA

PostPosted: Tue Nov 23, 2021 1:04 am
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I tested CECI and discovered that the RETURN TRANSID .... generates an INVREQ error with RESP2 value of 2
Quote:
2
A RETURN command with the CHANNEL, COMMAREA, or IMMEDIATE option is issued by a program that is not at the highest logical level.
so you cannot pass a COMMAREA using CECI.
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