NSSBK

Prolog  

Control Block Contents  
   NSSBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

NSSBK Prolog

 NAME       : HCPNSSBK
 DESCRIPTION: SAVESEG/SAVESYS parameter control block
 DSECT      : NSSBK
 FUNCTION   : The HCPNSSBK is a parameter area used for
              SAVESEG/SAVESYS.
 LOCATED BY : None
 CREATED BY : HCPNSS
 DELETED BY : HCPNSS

NSSBK Control Block Content

NSSBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      NSSBK          SAVESEG/SAVESYS parameter control
                                        block
0000    0 Bitstring    1 NSSWRKFG       Work flag
          .... ...1      NSSAVSEG       X'01' Indicates a SAVESEG command
          .... ..1.      NSSAVSYS       X'02' Indicates a SAVESYS command
          .... .1..      NSSVSNTQ       X'04' Indicates that a SNTBK is
                                        placed on Saveseg/Savesys SNTBK
                                        queue
          .... 1...      NSSERRCL       X'08' Indicates that an error was
                                        detected when closing the SDF
          ...1 ....      NSSDFOPN       X'10' Indicates the SDF found by
                                        HCPSDFSC is open
          ..1. ....      NSSNOTFD       X'20' Indicates that the system
                                        specified in the SAVESYS cmd was
                                        not found
0001    1 Bitstring    1 NSSTATFG       Status flag
          1... ....      NSSSSPOR       X'80' Indicates that the segment
                                        space's SDF was found opened for
                                        read
          .1.. ....      NSSSSPOP       X'40' Indicates that the segment
                                        space's SDF was found opened
0002    2 Bitstring    1 NSSLCKFG       *NSS SDF queue lock status
          1... ....      NSSSDFEX       X'80' Indicates that the *NSS SDF
                                        queue lock is held exclusively
          ..1. ....      NSSSDFNO       X'20' Indicates that the *NSS SDF
                                        queue lock is not held
0003    3 Bitstring    1 *              Reserved for IBM furture usage
          00000001       NSSBKDSZ       (*-NSSBK+7)/8 NSSBK block size in
                                        DW's
          00000004       NSSBKBSZ       (*-NSSBK) NSSBK block size in
                                        bytes

NSSBK Storage Layout

          
*** NSSBK - SAVESEG/SAVESYS parameter control block
*
*     +------+------+------+------+
*   0 |:WRKFG|:TATFG|:LCKFG|//////| 4
*     +------+------+------+------+
*
*** NSSBK - SAVESEG/SAVESYS parameter control block

NSSBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
NSSAVSEG       0000 01
NSSAVSYS       0000 02
NSSBKBSZ       0003 00000004
NSSBKDSZ       0003 00000001
NSSDFOPN       0000 10
NSSERRCL       0000 08
NSSLCKFG       0002
NSSNOTFD       0000 20
NSSSDFEX       0002 80
NSSSDFNO       0002 20
NSSSSPOP       0001 40
NSSSSPOR       0001 80
NSSTATFG       0001
NSSVSNTQ       0000 04
NSSWRKFG       0000