AREXBK - 64-bit CP - V4R4.0

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

#### AREXBK

Prolog

Control Block Contents
AREXBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### AREXBK Prolog

     Name       : HCPARIBK
     Description: Queue entry containing a pending IORBK
     DSECT      : AREXBK
     Function   : Queue entry containing a pending IORBK.
     Located by : Queue hanging off ARIIORL
     Created by : HCPARR
     Deleted by : HCPARR

#### AREXBK Control Block Content

#### AREXBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      AREXBK         Queue entry containing a pending
                                            IORBK
    0000    0 Address      4 AREXFWD        Pointer to next AREXBK
    0004    4 Address      4 AREXIOR        Pointer to pending IORBK
    0008    8 Bitstring    1 AREXFLG1       Flag byte 1
              1... ....      AREXCLS        X'80' Close process pending
              .1.. ....      AREXRES        X'40' Close process from reset
    0009    9 Bitstring    7 *              Reserved
              00000010       AREXBLEN       *-AREXBK Byte length of AREXBK
              00000002       AREXDSIZ       ((AREXBLEN+7)/8) Doubleword
                                            length of AREXBK

#### AREXBK Storage Layout

    *** AREXBK - Queue entry containing a pending IORBK
    *
    *     +---------------------------+---------------------------+
    *   0 |         AREXFWD           |         AREXIOR           |
    *     +------+--------------------+---------------------------+
    *   8 |:XFLG1|////////////////////////////////////////////////|
    *     +------+------------------------------------------------+
    *  10
    *
    *** AREXBK - Queue entry containing a pending IORBK

#### AREXBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    AREXBLEN       0009 00000010
    AREXCLS        0008 80
    AREXDSIZ       0009 00000002
    AREXFLG1       0008
    AREXFWD        0000
    AREXIOR        0004
    AREXRES        0008 40

This information is based on z/VM V4R4.0. Last updated on 30 Jul 2003 at 12:28:19 EDT.
Copyright IBM Corporation, 1990, 2003