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 6.4.0.
Last updated on 24 Aug 2016 at 09:21:42 EDT.
Copyright IBM Corporation, 1990, 2016