Q:
I want to get some job's call stack, but the QWVRCSTK API need the Thread
identifier in JIDF0100 Format. How do I get the job thread identifier ?
A:
Here's an example using the QWVRCSTK API without a specific thread identifier:
The open job list API locates the most CPU consuming jobs on a system and
subsequently retrieves the program currently running in that job:
** Open list APIs are located in library QGY.
**
**-- Control spec:
H Option( *SrcStmt: *NoDebugIo ) BndDir( 'QC2LE' )
**-- API error data structure:
D ApiError Ds
D AeBytPrv 10i 0 Inz( %Size( ApiError ))
D AeBytAvl 10i 0
D AeExcpId 7a
D 1a
D AeExcpDta 128a
**-- API parameters:
D JlRtnRcdNbr s 10i 0 Inz( 1 )
D JlNbrFldRtn s 10i 0 Inz( %Elem( JlKeyFld ))
D JlKeyFld s 10i 0 Dim( 3 )
**-- Job information:
D JlJobInf Ds 512
D JbJobId 26a
D JbJobUsd 10a Overlay( JbJobId: 1 )
D JbUsrUsd 10a Overlay( JbJobId: *Next )
D JbNbrUsd 6a Overlay( JbJobId: *Next )
D JbActSts 4a
D JbJobTyp 1a
D JbJobSubTyp 1a
D JbDtaLen 10i 0
D 4a
**-- Key information:
D JlKeyInf Ds
D KiFldNbrRtn 10i 0
D KiKeyInf 20a Dim( %Elem( JlKeyFld ))
D KiFldInfLen 10i 0 Overlay( KiKeyInf : 1 )
D KiKeyFld 10i 0 Overlay( KiKeyInf : 5 )
D KiDtaTyp 1a Overlay( KiKeyInf : 9 )
D 3a Overlay( KiKeyInf : 10 )
D KiDtaLen 10i 0 Overlay( KiKeyInf : 13 )
D KiDtaOfs 10i 0 Overlay( KiKeyInf : 17 )
**-- Sort information:
D JlSrtInf Ds
D SiNbrKeys 10i 0 Inz( 1 )
D SiSrtInf 12a Dim( 10 )
D SiKeyFldOfs 10i 0 Overlay( SiSrtInf : 1 )
D SiKeyFldLen 10i 0 Overlay( SiSrtInf : 5 )
D SiKeyFldTyp 5i 0 Overlay( SiSrtInf : 9 )
D SiSrtOrd 1a Overlay( SiSrtInf : 11 )
D SiRsv 1a Overlay( SiSrtInf : 12 )
**-- List information:
D JlLstInf Ds
D LiRcdNbrTot 10i 0
D LiRcdNbrRtn 10i 0
D LiHandle 4a
D LiRcdLen 10i 0
D LiInfSts 1a
D LiDts 13a
D LiLstSts 1a
D 1a
D LiInfLen 10i 0
D LiRcd1 10i 0
D 40a
**-- Selection information:
D JlSltInf Ds
D SiJobNam 10a Inz( '*ALL' )
D SiUsrNam 10a Inz( '*ALL' )
D SiJobNbr 6a Inz( '*ALL' )
D SiJobTyp 1a Inz( '*' )
D 1a
D SiOfsPriSts 10i 0 Inz( 60 )
D SiNbrPriSts 10i 0 Inz( 0 )
D SiOfsActSts 10i 0 Inz( 70 )
D SiNbrActSts 10i 0 Inz( 0 )
D SiOfsJbqSts 10i 0 Inz( 78 )
D SiNbrJbqSts 10i 0 Inz( 0 )
D SiOfsJbqNam 10i 0 Inz( 88 )
D SiNbrJbqNam 10i 0 Inz( 0 )
**
D SiPriSts 10a Dim( 1 )
D SiActSts 4a Dim( 2 )
D SiJbqSts 10a Dim( 1 )
D SiJbqNam 20a Dim( 1 )
**-- Job information key fields:
D JbKeyDta Ds
D JbPrcUniTim 20u 0
D JbPrcUniPct 10i 0
D JbPrcUniTimE 20u 0
**-- General return data:
D JlGenDta Ds
D GdBytRtn 10i 0
D GdBytAvl 10i 0
D GdElpTim 20u 0
D 16a
**-- Global variables:
D Ix s 5i 0
D Msg s 256a Varying
D MsgKey s 4a
D PgmNam_q s 20a
**-- API constants:
D JOB_RESET_STAT c '1'
D JOB_KEEP_STAT c '0'
**-- Open list of jobs:
D LstJobs Pr ExtPgm( 'QGYOLJOB' )
D LjRcvVar 65535a Options( *VarSize )
D LjRcvVarLen 10i 0 Const
D LjFmtNam 8a Const
D LjRcvVarDfn 65535a Options( *VarSize )
D LjRcvDfnLen 10i 0 Const
D LjLstInf 80a
D LjNbrRcdRtn 10i 0 Const
D LjSrtInf 1024a Const Options( *VarSize )
D LjJobSltInf 1024a Const Options( *VarSize )
D LjJobSltLen 10i 0 Const
D LjNbrFldRtn 10i 0 Const
D LjKeyFldRtn 10i 0 Const Options( *VarSize )
D Dim( 32 )
D LjError 1024a Options( *VarSize )
**
D LjJobSltFmt 8a Const Options( *NoPass )
**
D LjResStc 1a Const Options( *NoPass )
D LjGenRtnDta 32a Options( *NoPass:*VarSize)
D LjGenRtnDtaLn 10i 0 Const Options( *NoPass )
**-- Get list entry:
D GetLstEnt Pr ExtPgm( 'QGYGTLE' )
D GlRcvVar 65535a Options( *VarSize )
D GlRcvVarLen 10i 0 Const
D GlHandle 4a Const
D GlLstInf 80a
D GlNbrRcdRtn 10i 0 Const
D GlRtnRcdNbr 10i 0 Const
D GlError 1024a Options( *VarSize )
**-- Close list:
D CloseLst Pr ExtPgm( 'QGYCLST' )
D ClHandle 4a Const
D ClError 1024a Options( *VarSize )
**-- Copy memory:
D MemCpy Pr * ExtProc( '_MEMMOVE' )
D pOutMem * Value
D pInpMem * Value
D iMemSiz 10u 0 Value
**-- Delay job:
D sleep Pr 10i 0 ExtProc( 'sleep' )
D seconds 10u 0 Value
**-- Get job program:
D GetJobPgmX Pr 20a
D PxJobId 26a Const
**-- Mainline:
C* Eval SiNbrActSts = SiNbrActSts + 1
C* Eval SiActSts(SiNbrActSts) = 'HLD '
**
C Eval JlKeyFld(1) = 312
C Eval JlKeyFld(2) = 314
C Eval JlKeyFld(3) = 315
**
C Eval SiNbrKeys = 1
C Eval SiKeyFldOfs(1) = 49
C Eval SiKeyFldLen(1) = 4
C Eval SiKeyFldTyp(1) = 0
C Eval SiSrtOrd(1) = '2'
C Eval SiRsv(1) = x'00'
**
C CallP LstJobs( JlJobInf
C : %Size( JlJobInf )
C : 'OLJB0300'
C : JlKeyInf
C : %Size( JlKeyInf )
C : JlLstInf
C : 0
C : JlSrtInf
C : JlSltInf
C : %Size( JlSltInf )
C : JlNbrFldRtn
C : JlKeyFld
C : ApiError
C : 'OLJS0100'
C : JOB_RESET_STAT
C : JlGenDta
C : %Size( JlGenDta )
C )
**
C CallP sleep( 30 )
**
C CallP LstJobs( JlJobInf
C : %Size( JlJobInf )
C : 'OLJB0300'
C : JlKeyInf
C : %Size( JlKeyInf )
C : JlLstInf
C : 1
C : JlSrtInf
C : JlSltInf
C : %Size( JlSltInf )
C : JlNbrFldRtn
C : JlKeyFld
C : ApiError
C : 'OLJS0100'
C : JOB_KEEP_STAT
C : JlGenDta
C : %Size( JlGenDta )
C )
**
C If AeBytAvl = *Zero
**
C DoW LiLstSts <> '2' Or
C LiRcdNbrTot > JlRtnRcdNbr
**
C If JbJobTyp <> 'X'
C ExSr GetKeyDta
C ExSr GetJobPgm
C EndIf
**
C Eval JlRtnRcdNbr = JlRtnRcdNbr + 1
**
C CallP GetLstEnt( JlJobInf
C : %Size( JlJobInf )
C : LiHandle
C : JlLstInf
C : 1
C : JlRtnRcdNbr
C : ApiError
C )
**
C If JbPrcUniTimE <= *Zero
C Leave
C EndIf
**
C EndDo
**
C CallP CloseLst( LiHandle
C : ApiError
C )
**
C EndIf
**
C Eval *InLr = *On
**
C Return
**-- Get Key Field Data:
C GetKeyDta BegSr
**
C Clear JbKeyDta
**
C For Ix = 1 To KiFldNbrRtn
**
C Select
C When KiKeyFld(Ix)= 312
C CallP MemCpy( %Addr( JbPrcUniTim )
C : %Addr( JlJobInf ) +
C KiDtaOfs(Ix)
C : KiDtaLen(Ix)
C )
**
C When KiKeyFld(Ix)= 314
C CallP MemCpy( %Addr( JbPrcUniPct )
C : %Addr( JlJobInf ) +
C KiDtaOfs(Ix)
C : KiDtaLen(Ix)
C )
**
C When KiKeyFld(Ix)= 315
C CallP MemCpy( %Addr( JbPrcUniTimE )
C : %Addr( JlJobInf ) +
C KiDtaOfs(Ix)
C : KiDtaLen(Ix)
C )
C EndSl
**
C EndFor
**
C EndSr
**-- Get job program:
C GetJobPgm BegSr
**
C Eval PgmNam_q = GetJobPgmX( JbJobId )
**
C EndSr
**-- Get job program:
P GetJobPgmX B Export
D Pi 20a
D PxJobId 26a Const
**-- API error data structure:
D ApiError Ds
D AeBytPrv 10i 0 Inz( %Size( ApiError ))
D AeBytAvl 10i 0
D AeExcpId 7a
D 1a
D AeExcpDta 128a
**-- Retrieve call stack API parameters:
D CsRcvVar Ds
D CsBytRtn 10i 0
D CsBytAvl 10i 0
D CsNbrStkE 10i 0
D CsOfsStkE 10i 0
D CsNbrEntRtn 10i 0
D CsThrId 8a
D CsInfSts 1a
D CsCalStk 32767a
**
D CsCalStkE Ds Based( pCalStkE )
D CsStkEntLen 10i 0
D CsOfsStmIds 10i 0
D CsNbrStmIds 10i 0
D CsOfsPrcNam 10i 0
D CsLenPrcNam 10i 0
D CsRqsLvl 10i 0
D CsPgmNam 10a
D CsPgmLib 10a
D CsMiInst 10i 0
D CsModNam 10a
D CsModLib 10a
D CsCtlBdy 1a
D CsRsv 3a
D CsActGrpNbr 10u 0
D CsActGrpNam 10a
D CsAddInf 4096a
**
D CsStmIds 10a Dim( 16 )
D CsPrcNam 512a
**
D CsJobId Ds
D JiJobId 26a
D JiJobNam 10a Overlay( JiJobId: 1 )
D JiUsrNam 10a Overlay( JiJobId: *Next )
D JiJobNbr 6a Overlay( JiJobId: *Next )
D JiIntId 16a
D JiRsv 2a Inz( *Allx'00' )
D JiThrInd 10i 0 Inz( 2 )
D JiThrId 8a Inz( *Allx'00' )
**
D RtvCalStk Pr ExtPgm( 'QWVRCSTK' )
D RcRcvVar 32767a
D RcRcvVarLen 10i 0 Const
D RcRcvInfFmt 8a Const
D RcJobId 56a Const
D RcJobIdFmt 8a Const
D RcError 32767a Options( *VarSize )
**
D EntNbr s 5u 0
**
**-- Mainline:
**
C Eval JiJobId = PxJobId
**
C CallP RtvCalStk( CsRcvVar
C : %Size( CsRcvVar )
C : 'CSTK0100'
C : CsJobId
C : 'JIDF0100'
C : ApiError
C )
**
C If AeBytAvl = *Zero
C Eval pCalStkE = %Addr( CsRcvVar ) +
C CsOfsStkE
**
C For EntNbr = 1 to CsNbrEntRtn
**
C If EntNbr = 1
**
C Eval CsStmIds = *Blanks
C Eval CsPrcNam = *Blanks
**
C If CsOfsStmIds > *Zero
C CallP MemCpy( %Addr( CsStmIds )
C : %Addr( CsCalStkE ) +
C CsOfsStmIds
C : CsNbrStmIds * %Size( CsStmIds )
C )
C EndIf
**
C If CsOfsPrcNam > *Zero
C CallP MemCpy( %Addr( CsPrcNam )
C : %Addr( CsCalStkE ) +
C CsOfsPrcNam
C : CsLenPrcNam
C )
C EndIf
**
C Leave
C EndIf
**
C If EntNbr < CsNbrEntRtn
C Eval pCalStkE = PCalStkE + CsStkEntLen
C EndIf
**
C EndFor
C EndIf
**
C Return CsPgmNam + CsPgmLib
**
P GetJobPgmX E
Thanks to Carsten Flensburg
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