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 V5R2.0.
Last updated on 11 Dec 2005 at 18:48:12.
Copyright IBM Corporation, 1990, 2005