IUCVIDBK Back to Index page
 
Prolog 
Control Block Contents 
   IUCVIDBK DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  IUCVIDBK Prolog Top of page
  
 NAME       : IUCVIDBK
 DESCRIPTION: IUCV or APPC Program Identification Block
 DSECT      : IUCVIDBK
 FUNCTION   : This block is created each time a program
              identifies itself as an IUCV or APPC program to
              CMS by the HNDIUCV SET function.
 
 
  IUCVIDBK Control Block Content Top of page
  




 IUCVIDBK DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      IUCVIDBK       IUCV or APPC Program Identification Block
0000    0 Address      4 IUCVIDNX       POINTER TO NEXT ENTRY
0004    4 Address      4 IUCVIDEX       ADDRESS OF THE EXIT
0008    8 Address      4 IUCVIDUW       ADDRESS OF THE USER FULLWORD
000C   12 Character    8 IUCVIDID       IDENTITY OF THE PROGRAM
0014   20 Bitstring    1 IUCVIDFL       Flags
          1... ....      IUCVID31       X'80' IUCVID31 Drive this exit
                                        AMODE 31
          .1.. ....      IUCVIDCX       X'40' IUCVIDCX It's a control
                                        exit
          ..1. ....      IUCVIDPC       X'20' IUCVIDPC On = process level
                                        cleanup wanted for pid in
                                        IUCVIDPD
0015   21 Bitstring    1 IUCVIDF1       More flags
          1... ....      IUCVIDHL       X'80' IUCVIDHL On = disallow
                                        connect
0016   22 Bitstring    1 * (2)          Reserved
0018   24 Signed       4 IUCVIDPD       CMS MT process id
          00000004       IUCVIDSZ       (*-IUCVIDBK+7)/8 SIZE OF AREA IN
                                        DOUBLEWORDS
 
 
  IUCVIDBK Storage Layout Top of page
  
          
*** IUCVIDBK - IUCV or APPC Program Identification Block
*
*     +---------------------------+---------------------------+
*   0 |         IUCVIDNX          |         IUCVIDEX          |
*     +---------------------------+---------------------------+
*   8 |         IUCVIDUW          |        IUCVIDID-          |
*     +---------------------------+------+------+-------------+
*  10 |          -(00C)           |:VIDFL|:VIDF1|/////////////|
*     +---------------------------+------+------+-------------+
*  18 |         IUCVIDPD          | 1C
*     +---------------------------+
*
*** IUCVIDBK - IUCV or APPC Program Identification Block
 
 
  IUCVIDBK Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
IUCVIDCX       0014 40
IUCVIDEX       0004
IUCVIDFL       0014
IUCVIDF1       0015
IUCVIDHL       0015 80
IUCVIDID       000C
IUCVIDNX       0000
IUCVIDPC       0014 20
IUCVIDPD       0018
IUCVIDSZ       0018 00000004
IUCVIDUW       0008
IUCVID31       0014 80
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 16:01:34 EDT.
Copyright IBM Corporation, 1990, 2022