Programming Interface Information:
The Monitor Records are intended Programming Interfaces that
allow the customer to write programs to obtain services of z/VM.

MRIODCHA

Prolog
Control Block Contents
Cross Reference

MRIODCHA Prolog

 DSECT NAME - IODCHA
 FUNCTION - Map a Monitor record.
 LOCATED BY -
        Through the Monitor Control Area
 REFERENCED CONTROL BLOCKS -
        MRRECHDR    Monitor Record Header
 NAME - MRIODCHA
 DESCRIPTIVE NAME - Monitor Event record
                    Domain 6  - I/O Domain
                    Record 47 - CHPID now in use for EDEV activity
 DESCRIPTION - Indicates a CHPID that is now in use by one or more
               EDEVices
 NOTES:
  - This indicates that a CHPID that was not being used by any
    EDEV(s) is now in use by at least one EDEV.

MRIODCHA Control Block Contents

Offsets
Dec  Hex  Type        Len  Name (Dim)             Description
 
   0   0  Structure    24  IODCHA                 Start of monitor record
   0   0  Character     0  IODCHA_MRHDR           Record header. See MRRECHDR
                                                  for details.
   0   0  Character    20  MRHDR
   0   0  Unsigned      2  MRHDRLEN
   2   2  Unsigned      2  MRHDRZER
   4   4  Unsigned      1  MRHDRDM
   5   5  Unsigned      1  *
   6   6  Unsigned      2  MRHDRRC
   8   8  Character     8  MRHDRTOD
  16  10  Character     4  *
  20  14  Character     0  MRHDR_END
  20  14  Unsigned      1  IODCHA_CHACHPID        CHPID number
  21  15  Unsigned      3  *                      Reserved
  24  18  Character     0  IODCHA_END

MRIODCHA Cross Reference

                      Hex           Hex
Name                  Offset Length Value
 
IODCHA                     0     24
IODCHA_CHACHPID           14      1
IODCHA_END                18      0
IODCHA_MRHDR               0      0
MRHDR                      0     20
MRHDR_END                 14      0
MRHDRDM                    4      1
MRHDRLEN                   0      2
MRHDRRC                    6      2
MRHDRTOD                   8      8
MRHDRZER                   2      2

This information is
based on z/VM V7R4.0.

Last updated on 10 September 2024 at 08:47:05.

Copyright IBM Corporation, 1990, 2024