I can verify that it really is an online program. It is in CICS and the programmer just recompiled it with a small change to verify it was really the right compile. The change showed up and I looked at the linkmap (which I included with the last email).

Tony Thigpen

[email protected] wrote on 04/23/2017 12:50 PM:
Hello Tony

I'm a bit confused ...
Are You Sure this is a program that runs as a CICS Transaction ?
Can  You issue CEMT I PROG(xxxxx), or CEMT I TRANS(*) PROG(xxxxxxxx) or  better 
yet issue a CECI LOAD PRPGRAM(xxxxxxxx)
.
I suspect its a Batch Submitted program using EXCI to LINK To or Start a 
transaction
in a CICS Region.


---------- Original Message ----------
From: Tony Thigpen <[email protected]>
To: [email protected]
Subject: Re: DFHEXLI vs DFHECI
Date: Sat, 22 Apr 2017 15:53:51 -0400

I had a little time and looked at this closer. I am trying to determine
what they are really doing and why.

Here is the JCL that they use to compile:

... translate step
... cobol step with output going to
//SYSLIN   DD DSN=&&LOADSET,DISP=(MOD,PASS),
//            UNIT=&WORK,SPACE=(80,(250,100))
... then
//COPYLINK EXEC PGM=IEBGENER,COND=(7,LT,COB)
//SYSUT1   DD DSN=&INDEX..SDFHMAC(DFHEXLI),DISP=SHR
//SYSUT2   DD DSN=&&COPYLINK,DISP=(NEW,PASS),
//            DCB=(LRECL=80,BLKSIZE=400,RECFM=FB),
//            UNIT=&WORK,SPACE=(400,(20,20))
//SYSPRINT DD SYSOUT=&OUTC
//SYSIN    DD DUMMY
//*------------------------------------------------
//LKED   EXEC PGM=IEWL,REGION=&REG,
//            PARM='&LNKPARM',COND=(5,LT,COB)
//SYSLIB   DD DSN=&INDEX..SDFHEXCI,DISP=SHR
//         DD DSN=&INDEX..SDFHLOAD,DISP=SHR
//         DD DSN=&LE370HLQ..SCEELKED,DISP=SHR
//         DD DSN=&INDEX..SDFHCOB,DISP=SHR
//         DD DSN=&INDEX..SDFHMAC,DISP=SHR
//         DD DSN=&INDEX..SDFHSAMP,DISP=SHR
//SYSLMOD  DD DSN=XXXX.&CICS..USER.LOADLIB,DISP=SHR
//SYSUT1   DD UNIT=&WORK,DCB=BLKSIZE=1024,
//            SPACE=(1024,(200,20))
//SYSPRINT DD SYSOUT=&OUTC
//SYSLIN   DD DSN=&&COPYLINK,DISP=(OLD,DELETE)
//         DD DSN=&&LOADSET,DISP=(OLD,DELETE)
//         DD DDNAME=SYSIN

They run the compile using:
/HBCC08  EXEC CICSCCLH,.....
//TRN.SYSIN DD *
./ INCLUDE HBCC08,LIB=PROD
/*
//LKED.SYSIN DD *
      NAME HBCC08(R)
/*
//

It seems that ..SDFHMAC(DFHEXLI) only contains one line:
    INCLUDE SYSLIB(DFHXCSTB)

DFHXCSTB is in ..SDFHEXCI

It appears that during the link stage, DFHEI1 is being pulled in
automatically.

BATCH EMULATOR  JOB(HBCC08  ) STEP(HBCC08  ) PGM= IEWL
PROCEDURE(LKED    )
IEW2278I B352 INVOCATION PARAMETERS - AMODE(31),RMODE(ANY),LIST,XREF

IEW2322I 1220  1     INCLUDE SYSLIB(DFHXCSTB)
IEW2322I 1220  2       NAME HBCC08(R)
                                         C R O S S - R E F E R E N C E  T
A B L E

_________________________________________
TEXT CLASS = B_TEXT

---------------  R E F E R E N C E  --------------------------  T A R G
E T  ---
    CLASS                            ELEMENT       |

    OFFSET SECT/PART(ABBREV)          OFFSET  TYPE | SYMBOL(ABBREV)
SECTION (ABB
      2A0 HBCC08                         50 V-CON | IGZCBSO
IGZCBSO
      30A HBCC08                         BA V-CON | CEESTART
CEESTART
      32A HBCC08                         DA V-CON | CEESTART
CEESTART
      32E HBCC08                         DE V-CON | CEEBETBL
CEEBETBL
      384 HBCC08                        134 V-CON | DFHEI1
DFHEAI
      388 HBCC08                        138 V-CON | CEELOCT
CEELOCT
     33BC CEEBETBL                        4 V-CON | CEEBXITA
$UNRESOLVED(

So, what are they really doing by including something from the EXCI
library instead of the normal INCLUDE?

Tony Thigpen

[email protected] wrote on 04/22/2017 09:59 AM:
Hi Tony

I found two references to DFHEXLI
and also refer to the external interface guide as you mentioned

CICS.SDFHPROC(DFHYXTDL)

CICS.SDFHPROC(DFHEXTAL)

---------- Original Message ----------
From: Tony Thigpen <[email protected]>
To: [email protected]
Subject: DFHEXLI vs DFHECI
Date: Fri, 21 Apr 2017 21:09:07 -0400

I am working with a site, and their CICS COBOL compile procs include
DFHEXLI instead of DFHECI.

I thought DFHEXLI was only for batch programs using the external
interface link. But, there is not much information about it when I
google it.

Can DFHEXLI safely be used for "normal" CICS programs?


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