IUCVIDBK

IUCVIDBK Prolog

 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

IUCVIDBK DSECT

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' Drive this exit AMODE 31
          .1.. ....      IUCVIDCX       X'40' It's a control exit
          ..1. ....      IUCVIDPC       X'20' On = process level cleanup
                                        wanted for pid in IUCVIDPD
0015   21 Bitstring    1 IUCVIDF1       More flags
          1... ....      IUCVIDHL       X'80' 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

          
*** 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

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