Thanks Mars looks like a good starting point.
I have a program to check the enqueues for a dataset in ISPF:
LA R10,RNAMELEN
ISGQUERY ANSAREA=ANSWER,ANSLEN=ANSLEN, X
GATHERFROM=SYSPLEX,ANSDETAIL=FULL, X
SEARCH=BY_FILTER,SCANACTION=START,SCOPE=SYSPLEX, X
REQINFO=QSCAN,RESUMETOKEN=RESUMETK, X
RNAME=RNAME,QNAME=SYSDSN,RNAMELEN=(R10), X
RNAMEMATCH=PATTERN,RETCODE=RETCODE, X
QNAMEMATCH=SPECIFIC,RSNCODE=RSNCODE
*
LA R6,ANSWER Address returned area R6
USING ISGYQUAAHDR,R6 Map the header
*
*
ISGLOOP0 L R3,ISGYQUAAHDRFIRSTRECORD31 Address first record
L R4,ISGYQUAAHDRNUMRECORDS Address the count
ISGLOOP EQU *
USING ISGYQUAARS,R3 Map the next Resource Rec
TM ISGYQUAARSFLAGS1,ISGYQUAARSRQSOMITTED Any dropped?
BNO ISGLOOP1 No, branch
*
* Requester area too small
*
ISGLOOP1 EQU *
L R5,ISGYQUAARSFIRSTRQ31 Address first requester
L R6,ISGYQUAARSNUMRQ Address count
ISGLOOP2 EQU *
USING ISGYQUAARQ,R5 Map Requester area
MVC ENQTYPE,=CL4'SHR '
TM ISGYQUAARQFLAGS1,ISGYQUAARQCONTROL Is the ENQ=SHR?
BO ISGLOOP3 Yes branch
MVC ENQTYPE,=CL4'EXC '
ISGLOOP3 TM ISGYQUAARQFLAGS1,ISGYQUAARQOWNER Is this the OWNER?
BNO ISGLOOP4 No branch
MVC ENQOWNR,=CL6'USING '
B ISGLOOP5 Branch
ISGLOOP4 EQU *
TM ISGYQUAARQFLAGS1,ISGYQUAARQMATU Is Requester using it?
BO ISGLOOP5 Yes branch
MVC ENQOWNR,=CL6'WAIT '
ISGLOOP5 DS 0H
* Is Requester Data Record Extension valid?
TM ISGYQUAARQFLAGS2,ISGYQUAARQRQXVALID
BNO ISGLOOP9 No branch
L R7,ISGYQUAARQRQX31 Address the area
USING ISGYQUAARQX,R7 Map the extension area
MVC OUTREC+47(2),ISGYQUAARQXSYSNAME Put in the system
MVC OUTREC+51(8),ISGYQUAARQXJOBNAME Put in the jobname
MVC OUTREC+61(3),ENQTYPE Put in the ENQ type
MVC OUTREC+66(5),ENQOWNR Put in the OWNER field
DROP R7
ISGLOOP DS 0H
Thanks,
Mark.
-----Original Message-----
From: IBM Mainframe Assembler List [mailto:[email protected]] On
Behalf Of [email protected]
Sent: 13 February 2016 16:56
To: [email protected]
Subject: Would ISGQUERY be the proper macro/service
.
I have a Started Task (STC), and sometimes a batch job will hold a VSAM dataset
needed by this STC. This prevents the STC from properly re-opening the dataset.
.
Share Options are 2,3 and Transactional VSAM (RLS) is not an option.
.
.
Im looking for a macro or callable service that will allow the Started Task to
identify the name of the batch job that has opened a VSAM dataset which the
Started Task needs.
.
.
I started reading the description of the ISGQUERY and its various Mapping
Macros but i dont see where it would returns the name of a batch job that has
allocated a VSAM dataset. I suspect I would use GATHERFROM=SYSTEM with
SCOPE=SYSTEM, since the batch processing occurs on the same LPAR as the Started
Task.
Is ISGQUERY the proper macro/service to accomplish this ?
.
Would someone provide some sample code and point me to the proper macro/service
to invoke.
.
.
The Started Task happens to be a CICS Address Space and we would use a CICS
Supplied Open Exit to drive this.
.
.
Paul D'Angelo
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