JPSCBLOK The JPSCBLOK is a part of DMKSYS. It is referenced via the EXTERNAL symbel DBKSYSJR. It
is used to centrol the LOGON/AUTOLOG/LINK Journaling and Password-cn-the-coaaand-line
Suppression functions.
o JPSLOGU S JPSLNKU 10 JPSPCHN J*1 J*2 1S J*5 I J*6 I J*7 RESERVED Hexadecimal Field
Displacement Nalle Field Description. Contents, Beaning ------------ -------------------------------------- 0 JPSLOGU DS CLS Userid for LOGON/IUTCLOG threshold aessages S JPSLNKU DS CLS Userid for LINK threshold messages 10 JPSPCHN DS 1F Anchor for FWDIBLOKs 14 JPSFLIGS DS 1X J*1 Control flags j!it§ in JPSFLG LOGONJRL EOU X '80--- LOGON/AUTOLCG journaling OJ LI1fKJRL EQU 1--40' SuccessfulL:INK journalingCI LIHKJRL1 EOU X'20' Invalid password LINK journaling ON JRLSQOK EQU X'10' SET/CUERY JCURNAL enabled !!ASKLOG EQU X'OS' Suppress LOGON password MASKLINK EOU X'04' Suppress LIBK password
15 JPSLOGAR DS 1X J*2 LOGON/AUTOLOG accounting record threshold
aessages
16 JPSLOGMS DS 1X J*3 LOGON/AUTOLCG message threshcld
17 JPSLOGDS DS 1X J*4 LOGON/AUTOLCG disable threshold 1S JPSLNKAR DS 1X J*5 LINK accounting record threshold
19 JPSLNKMS DS 1X J*6 LINK message threshold
1A JPSLNKDS DS 1X J*7 LINK disable threshold
1B DS XL5 Reserved for IB! use
32 IBM VM/370 Data Areas and Control Block Logic

LOCKBLCK LOCKELOK is used to synchronize execution for sections of nonreenterable code. Locked
users are returned to the CPEXBLCK queue when the function teing executed coapletes or no
longer requires nonreenterable resources. LOCKELOKs are queued eff DMKSYSLE. Hexadecimal Displacement
------------ 0 4
8
r ,
o I LOCKNEXT LOCKQUE I 1------------------------------------------------1
8 I LOCKNAME I Field Name LOCKNEXT DS LOCKQUE DS LOCKNAME DS
LOCKSIZE EQU 1F
1F
1D
Field Description, Contents, Meaning Pointer to the next lock centrol block
Pointer to CPEXELOK queue The name being locked C*-LOCKELOK)/8 LOCKELOK size in doutlevords (X'02') Section 1. CP Data Areas and Centrol Elocks 33