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

#### MRRECHDR

Prolog
Control Block Contents
Cross Reference

#### MRRECHDR Prolog

####

####

     DSECT NAME - MRHDR
     FUNCTION - Define the common record header format or be used
                in all the Monitor Records.
     LOCATED BY -
           Used within each Monitor Record   (MRxxxzzz)
     REFERENCED CONTROL BLOCKS -
            None
     NAME - MRRECHDR
     DESCRIPTIVE NAME - Monitor Record Header
     DESCRIPTION -  Common data that prefaces all data in all
                    monitor records.

    MRRECHDR Control Block Contents

    Offsets
    Dec Hex  Type       Len  Name (Dim)             Description

      0   0  Structure   20  MRHDR
      0   0  Unsigned     2  MRHDRLEN               record length in bytes
      2   2  Unsigned     2  MRHDRZER               field of zeros
      4   4  Unsigned     1  MRHDRDM                domain identifier
      5   5  Unsigned     1  *                      reserved for IBM use
      6   6  Unsigned     2  MRHDRRC                record identifier
      8   8  Character    8  MRHDRTOD               Time at which this record was
                                                    built. In time-of-day (TOD)
                                                    clock format. See IBM System
                                                    370 XA Principle of Operation
                                                    for explanation of format.
     16  10  Character    4  *                      reserved for IBM use
     20  14  Character    0  MRHDR_END              End of header

    MRRECHDR Cross Reference

                          Hex           Hex
    Name                 Offset Length Value

    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 V6R1.0.

    Last updated on 8 Oct 2009 at 21:08:13.

    Copyright IBM Corporation, 1990, 2009