Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.

SCLBK

Prolog  

Control Block Contents  
   SCLBK DSECT
   SCLCHTEN DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

SCLBK Prolog

 NAME       : HCPSCLBK
 DESCRIPTION: *SCLP IUCV System Service Block
 DSECT      : SCLBK
 FUNCTION   : Record active *SCLP IUCV System Service
              connections.
 LOCATED BY : HCPIUGSC
 CREATED BY : N/A (Assembled as part of HCPIUG)
 DELETED BY : N/A
 REFERENCES : none
 

SCLBK Control Block Content

SCLBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      SCLBK          *SCLP IUCV System Service Block
0000    0 Dbl-Word     8 SCLLOCK (3)    SCLBK Lockword
0018   24 Signed       4 SCLVALID       Valid message classes
001C   28 Signed       4 SCLREGIS       Registered message classes
0020   32 Dbl-Word     8 * (4)          Reserved for IBM use
0040   64 Bitstring   24 SCLCHTAB (0)   Class handler table
          00000340       SCLBKLEN       *-SCLBK SCLBK Length




SCLCHTEN DSECT


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      SCLCHTEN       *SCLP IUCV System Service Block
0000    0 Bitstring    4 SCLCHMSK       Message classes handled
0004    4 Signed       2 SCLCHPTH       CP path identifier
0006    6 Signed       2 *              Reserved for IBM use
0008    8 Character    8 SCLCHUID       User identifier
0010   16 Character    8 SCLCHOWN       Owner identifier
0018   24 Bitstring    1 SCLCHTNX (0)   Next table entry
          00000018       SCLCHTEL       *-SCLCHTEN Class handler table
                                        entry length






 

SCLBK Storage Layout


          
*** SCLBK - *SCLP IUCV System Service Block
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                       SCLLOCK                         =
*     |                                                       |
*     +---------------------------+---------------------------+
*  18 |         SCLVALID          |         SCLREGIS          |
*     +---------------------------+---------------------------+
*  20 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*
*** SCLBK - *SCLP IUCV System Service Block
          
*** SCLCHTEN - *SCLP IUCV System Service Block
*
*     +---------------------------+-------------+-------------+
*   0 |         SCLCHMSK          |  SCLCHPTH   |/////////////|
*     +---------------------------+-------------+-------------+
*   8 |                       SCLCHUID                        |
*     +-------------------------------------------------------+
*  10 |                       SCLCHOWN                        |
*     +-------------------------------------------------------+
*
*** SCLCHTEN - *SCLP IUCV System Service Block






 

SCLBK Cross Reference


Symbol         Dspl Value
-------------- ---- -----
SCLBKLEN       0040 00000340
SCLCHMSK       0000
SCLCHOWN       0010
SCLCHPTH       0004
SCLCHTAB       0040
SCLCHTEL       0018 00000018
SCLCHTNX       0018
SCLCHUID       0008
SCLLOCK        0000
SCLREGIS       001C
SCLVALID       0018






This information is
based on z/VM V6R1.0.
Last updated on 18 Feb 2010 at 09:03:19 EDT.

Copyright IBM Corporation, 1990, 2008