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

MBEBK

Prolog
Control Block Contents
MBEBK DSECT
Storage Layout
Cross Reference

MBEBK Prolog

 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).

 

MBEBK Control Block Content

MBEBK DSECT

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

          
*** 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

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 V3R1.0.
Last updated on 30 Mar 2001 at 08:11:47 EDT.
Copyright IBM Corporation, 1990, 2001