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

#### MRSCLIOP

Prolog
Control Block Contents
Cross Reference

#### MRSCLIOP Prolog

####

####

     DSECT NAME - SCLIOP
     FUNCTION - Map a Monitor record.
     LOCATED BY -
               Through the Monitor Control Area
     REFERENCED CONTROL BLOCKS -
            MRRECHDR    Monitor Record Header
     NAME - MRSCLIOP
     DESCRIPTIVE NAME - Monitor Event Record
                        Domain 2 - Scheduler Domain
                        Record 11 - I/O Priority Change
     DESCRIPTION - Records I/O Priority change to a user.  A
                   user's I/O priority may change when a system
                   change occurs.  A system change occurs when
                   the system operator changes the I/O priority
                   status on the system console.  A user change
                   can also occur when a SET IOPRIORITY command
                   is issued specifying this user, or user logs
                   on and has a IOPRIORITY directory statement.
                   This record is generated only if the user
                   who is the target of the command is enabled
                   for scheduler domain (not to be confused
                   with the user that issued the command).

    MRSCLIOP Control Block Contents

    Offsets
    Dec Hex  Type       Len  Name (Dim)             Description

      0   0  Structure   36  SCLIOP                 Start of monitor record
      0   0  Character    0  SCLIOP_MRHDR           Record header
      0   0  Character   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  *
      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  *
     20  14  Character    0  MRHDR_END              End of header
     20  14  Character    8  SCLIOP_VMDUSER         Userid
     28  1C  Unsigned     4  SCLIOP_IPQUPR1         HCPIPQUP input R1
     28  1C  Unsigned     1  SCLIOP_NEWRQLO         If not a system change, this
                                                    is the user's requested LO
                                                    range value.
     29  1D  Unsigned     1  SCLIOP_NEWRQHI         If not a system change, this
                                                    is the user's requested HI
                                                    range value.
     30  1E  Character    1  *                      Reserved and available for
                                                    IBM use
     31  1F  Bitstring    1  SCLIOP_IPQX0           Type of change flag byte
              1... ....      SCLIOP_IPQXCP          System change. Received real
                                                    machine check.
              .1.. ....      SCLIOP_IPQXDIS         I/O Priority Queuing changed
                                                    from enabled to disabled state
              ..1. ....      SCLIOP_IPQXENB         I/O Priority Queuing changed
                                                    from disabled to enabled state
              ...1 ....      *
              .... 1...      SCLIOP_IPQXUSER        Not a system change.
              .... .1..      SCLIOP_IPQXREL         User wants RELATIVE range.
              .... ..1.      SCLIOP_IPQXABS         User wants ABSOLUTE range.
              .... ...1      *
     32  20  Unsigned     4  SCLIOP_SYSIOPQ         I/O Priority Queueing
                                                    Information
     32  20  Bitstring    1  SCLIOP_SYSIOPQH        I/O Priority Queueing
                                                    Hardware Flags
              1... ....      SCLIOP_SYSIOPQA        I/O Priority Queueing
                                                    facility active
              .1.. ....      *
              ..1. ....      *
              ...1 ....      *
              .... 1...      *
              .... .1..      *
              .... ..1.      *
              .... ...1      *
     33  21  Unsigned     1  SCLIOP_SYSIOPLO        I/O Priority system minimum
     34  22  Unsigned     1  SCLIOP_SYSIOPHI        I/O Priority system maximum
     35  23  Character    1  *                      Reserved for IBM Use
     36  24  Character    0  SCLIOP_END

    MRSCLIOP 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
    SCLIOP                     0     36
    SCLIOP_END                24      0
    SCLIOP_IPQUPR1            1C      4
    SCLIOP_IPQXABS            1F           02
    SCLIOP_IPQXCP             1F           80
    SCLIOP_IPQXDIS            1F           40
    SCLIOP_IPQXENB            1F           20
    SCLIOP_IPQXREL            1F           04
    SCLIOP_IPQXUSER           1F           08
    SCLIOP_IPQX0              1F      1
    SCLIOP_MRHDR               0      0
    SCLIOP_NEWRQHI            1D      1
    SCLIOP_NEWRQLO            1C      1
    SCLIOP_SYSIOPHI           22      1
    SCLIOP_SYSIOPLO           21      1
    SCLIOP_SYSIOPQ            20      4
    SCLIOP_SYSIOPQA           20           80
    SCLIOP_SYSIOPQH           20      1
    SCLIOP_VMDUSER            14      8

    This information is
    based on z/VM V6R1.0.

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

    Copyright IBM Corporation, 1990, 2009