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

#### MRSCLRDB

Prolog
Control Block Contents
Storage Layout
Cross Reference

#### MRSCLRDB Prolog

####

####

     DSECT NAME - SCLRDB
     FUNCTION - Map a Monitor record.
     LOCATED BY -
               Through the Monitor Control Area
     REFERENCED CONTROL BLOCKS -
            MRRECHDR    Monitor Record Header
     NAME - MRSCLRDB
     DESCRIPTIVE NAME - Monitor Event Record
                        Domain 2 - Scheduler Domain
                        Record 1 - Begin Read
     DESCRIPTION - Indicates that a console read has begun for a user.

    MRSCLRDB Control Block Contents

    Offsets
    Dec Hex  Type       Len  Name (Dim)          Description

      0   0  Structure   36  SCLRDB              Start of monitor record
      0   0  Character    0  SCLRDB_MRHDR        Record header. See MRRECHDR for
                                                 details.
      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  SCLRDB_VMDUSER      Userid
     28  1C  Bitstring    1  SCLRDB_CALFLAGS     Byte of flags
              1... ....      SCLRDB_CALRDSID     ON = SCLRDB_RDEVSID contains
                                                 real device subchannel id. OFF =
                                                 no terminal was involved in this
                                                 event, SCLRDB_RDEVSID is not
                                                 applicable.
              .1.. ....      *
              ..1. ....      *
              ...1 ....      *
              .... 1...      *
              .... .1..      *
              .... ..1.      *
              .... ...1      *
     29  1D  Character    3  *                   Reserved for IBM use
     32  20  Unsigned     4  SCLRDB_RDEVSID      Real device subchannel id.
                                                 Applicable only when
                                                 SCLRDB_CALRDSID = on.
     36  24  Character    0  SCLRDB_END

    MRSCLRDB 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
    SCLRDB                  0     36
    SCLRDB_CALFLAGS        1C      1
    SCLRDB_CALRDSID        1C           80
    SCLRDB_END             24      0
    SCLRDB_MRHDR            0      0
    SCLRDB_RDEVSID         20      4
    SCLRDB_VMDUSER         14      8

    This information is
    based on z/VM V4R3.0.

    Last updated on 1 May 2002 at 16:20:33.

    Copyright IBM Corporation, 1990, 2002