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
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 V6R3.0.

Last updated on 22 Jul 2013 at 15:07:38.

Copyright IBM Corporation, 1990, 2013