MBEBK Back to Index page
 
Prolog 
Control Block Contents 
   MBEBK 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.


  MBEBK Prolog Top of page
 
 NAME       : HCPMBEBK
 DESCRIPTION: ISFC Mailbox entry block
 DSECT      : MBEBK
 FUNCTION   : Maintain information about an ISFC mailbox.
 LOCATED BY : HCPCMS    points to the mailbox entries.
 CREATED BY : HCPCMS    part of the resident data.
 DELETED BY : Does not apply (data contained within a module).
 SERIALIZED : The ISFC global lock (HCPBDSGL).
 RELOCATION CONSIDERATIONS : None
 
 
  MBEBK Control Block Content Top of page
 

 MBEBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure MBEBK ISFC Mailbox entry block 0000 0 Signed 4 MBEIQUE ADDR OF MB INPUT QUEUE 0004 4 Signed 4 MBEIECB ADDR OF MB INPUT ECB 0008 8 Signed 4 MBEIROUT ADDR OF MB INPUT ROUTINE 000C 12 Signed 4 MBEOQUE ADDR OF MB OUTPUT QUEUE 0010 16 Signed 4 MBEOECB ADDR OF MB OUTPUT ECB 0014 20 Signed 4 MBEOROUT ADDR OF MB OUTPUT ROUTINE 0018 24 Signed 4 MBEDGPTH ADDR OF DATAGRAM PTHENT 001C 28 Signed 4 MBEPACCT MAILBOX PACING COUNT 0020 32 Character 4 MBENAME MAILBOX NAME 0024 36 Bitstring 1 MBEFLAG MAILBOX FLAG 0025 37 Bitstring 1 * Reserved 0026 38 Signed 2 MBEMHLEN Mailbox header length 0028 40 Dbl-Word 8 * Reserved 00000030 MBENTL *-MBEBK LENGTH OF MAILBOX ENTRY 00000006 MBESIZE (*-MBEBK+7)/8 Doubleword size of MBEBK
 
 
  MBEBK Storage Layout Top of page
 
          
*** MBEBK - ISFC Mailbox entry block
*
*     +---------------------------+---------------------------+
*   0 |         MBEIQUE           |         MBEIECB           |
*     +---------------------------+---------------------------+
*   8 |         MBEIROUT          |         MBEOQUE           |
*     +---------------------------+---------------------------+
*  10 |         MBEOECB           |         MBEOROUT          |
*     +---------------------------+---------------------------+
*  18 |         MBEDGPTH          |         MBEPACCT          |
*     +---------------------------+------+------+-------------+
*  20 |         MBENAME           |:FLAG |//////|  MBEMHLEN   |
*     +---------------------------+------+------+-------------+
*  28 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  30
*
*** MBEBK - ISFC Mailbox entry block
 
 
  MBEBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
MBEDGPTH       0018
MBEFLAG        0024
MBEIECB        0004
MBEIQUE        0000
MBEIROUT       0008
MBEMHLEN       0026
MBENAME        0020
MBENTL         0028 00000030
MBEOECB        0010
MBEOQUE        000C
MBEOROUT       0014
MBEPACCT       001C
MBESIZE        0028 00000006
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:52:30 EDT.
Copyright IBM Corporation, 1990, 2022