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
 RELOCATION CONSIDERATIONS : None

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' NSSAVSEG Indicates a
                                        SAVESEG command
          .... ..1.      NSSAVSYS       X'02' NSSAVSYS Indicates a
                                        SAVESYS command
          .... .1..      NSSVSNTQ       X'04' NSSVSNTQ Indicates that a
                                        SNTBK is placed on
                                        Saveseg/Savesys SNTBK queue
          .... 1...      NSSERRCL       X'08' NSSERRCL Indicates that an
                                        error was detected when closing
                                        the SDF
          ...1 ....      NSSDFOPN       X'10' NSSDFOPN Indicates the SDF
                                        found by HCPSDFSC is open
          ..1. ....      NSSNOTFD       X'20' NSSNOTFD Indicates that the
                                        system specified in the SAVESYS
                                        cmd was not found
0001    1 Bitstring    1 NSSTATFG       Status flag
          1... ....      NSSSSPOR       X'80' NSSSSPOR Indicates that the
                                        segment space's SDF was found
                                        opened for read
          .1.. ....      NSSSSPOP       X'40' NSSSSPOP Indicates that the
                                        segment space's SDF was found
                                        opened
0002    2 Bitstring    1 NSSLCKFG       *NSS SDF queue lock status
          1... ....      NSSSDFEX       X'80' NSSSDFEX Indicates that the
                                        *NSS SDF queue lock is held
                                        exclusively
          ..1. ....      NSSSDFNO       X'20' NSSSDFNO 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