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 V5R1.0.
Last updated on 13 Sep 2004 at 11:25:22.
Copyright IBM Corporation, 1990, 2004