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Prolog 
Control Block Contents 
   AMTW 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.


  AMTW Prolog Top of page
 
 NAME       : HCPAMTW
 DESCRIPTION: Asynchronous Message Task Work Request
 DSECT      : AMTW
 FUNCTION   : Work element request for asynchronous message read task.
 LOCATED BY : Pointer (RDEVAMTQ) in the Real Device Block
 CREATED BY : Any asynchronous message requester
              HCPAMTRQ - Asynchronous Message Task Interface
 DELETED BY : HCPAMR - Message Read Task
 RELOCATION CONSIDERATIONS : None
 
 
  AMTW Control Block Content Top of page
 

 AMTW DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure AMTW Asynchronous Message Task Work Request 0000 0 Address 4 * Reserved for Gated Queue Manager for use as a queue chain pointer 0004 4 Bitstring 1 AMTWREQ Defines the work to be performed 00000080 AMTWREAD X'80' AMTWREAD Read request 00000040 AMTWNTFY X'40' AMTWNTFY Notify request 00000020 AMTWRQSC X'20' AMTWRQSC Requeue request if a state change pending condition occurs 00000010 AMTWCANC X'10' AMTWCANC Cancel request 0005 5 Bitstring 1 AMTWDRMD Defines the disposition of message 00000080 AMTWPEND X'80' AMTWPEND Call reflection if pending response 00000040 AMTWRNOM X'40' AMTWRNOM Call reflection if no-message message 00000020 AMTWRTNM X'20' AMTWRTNM Return a no-msg msg with the furnished ms 00000010 AMTWIGNE X'10' AMTWIGNE Ignore error - will discard IOCM 0006 6 Bitstring 1 AMTWAMSK Attention presented path mask 0007 7 Bitstring 1 * Reserved 0008 8 Signed 4 AMTWMGID Message ID for a Read-specific request 000C 12 Address 4 AMTWRDEV RDEV Address 0010 16 Address 4 AMTWVDEV VDEV Address 0014 20 Address 4 AMTWPOST Pointer to CPEBK which represents a task waiting to be notified that the processing for this work request has been completed 00000003 AMTWSIZE ((*-AMTW)+7)/8 AMTW size in double-words
 
 
  AMTW Storage Layout Top of page
 
 
*** AMTW - Asynchronous Message Task Work Request
*
*     +---------------------------+------+------+------+------+
*   0 |///////////////////////////|:WREQ |:WDRMD|:WAMSK|//////|
*     +---------------------------+------+------+------+------+
*   8 |         AMTWMGID          |         AMTWRDEV          |
*     +---------------------------+---------------------------+
*  10 |         AMTWVDEV          |         AMTWPOST          |
*     +---------------------------+---------------------------+
*  18
*
*** AMTW - Asynchronous Message Task Work Request
 
 
  AMTW Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
AMTWAMSK       0006
AMTWCANC       0004 00000010
AMTWDRMD       0005
AMTWIGNE       0005 00000010
AMTWMGID       0008
AMTWNTFY       0004 00000040
AMTWPEND       0005 00000080
AMTWPOST       0014
AMTWRDEV       000C
AMTWREAD       0004 00000080
AMTWREQ        0004
AMTWRNOM       0005 00000040
AMTWRQSC       0004 00000020
AMTWRTNM       0005 00000020
AMTWSIZE       0014 00000003
AMTWVDEV       0010
 
This information is based on z/VM 6.4.0 Last updated on 24 Aug 2016 at 09:22:35 EDT.
Copyright IBM Corporation, 1990, 2016