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

#### MRSSIXLK

Prolog
Control Block Contents
Cross Reference

#### MRSSIXLK Prolog

     DSECT NAME - SSIXLK
     FUNCTION - Map a Monitor record.
     LOCATED BY -
            Through the Monitor Control Area
     REFERENCED CONTROL BLOCKS -
            MRRECHDR    Monitor Record Header
     NAME - MRSSIXLK
     DESCRIPTIVE NAME - Monitor Sample Record
                        Domain 11- SSI Domain
                        Record  6 - XDISK Serialization Sample
     DESCRIPTION - Indicates usage information for XDISK cross-system
                   serialization routines.
     NOTES -
      1.  An SSIXLK record is generated for each XKLBK that exists.

#### MRSSIXLK Control Block Contents

    Offsets
    Dec  Hex  Type        Len  Name (Dim)             Description

       0   0  Structure   104  SSIXLK                 Start of monitor record
       0   0  Character     0  SSIXLK_MRHDR           Record header. See
                                                      MRRECHDR.
       0   0  Character    20  MRHDR
       0   0  Unsigned      2  MRHDRLEN
       2   2  Unsigned      2  MRHDRZER
       4   4  Unsigned      1  MRHDRDM
       5   5  Unsigned      1  *
       6   6  Unsigned      2  MRHDRRC
       8   8  Character     8  MRHDRTOD
      16  10  Character     4  *
      20  14  Character     0  MRHDR_END
      20  14  Character     1  SSIXLK_XLKTYPE         Lock Type - see XLKTYPE for
                                                      type definitions
      21  15  Character     1  *                      Reserved for future IBM use
      22  16  Unsigned      2  SSIXLK_RDEVDEV         For locks of type XLKMDCHN,
                                                      this value = RDEV number.
                                                      Otherwise, this is blank.
      24  18  Unsigned      4  SSIXLK_XLKXLGET        Count of exclusive acquires
                                                      that did not require comm.
      28  1C  Unsigned      4  SSIXLK_XLKXXGET        Count of exclusive acquires
                                                      that required cross-SSI comm.
      32  20  Unsigned      4  SSIXLK_XLKXDFRS        Count of acquires that
                                                      deferred before starting SSI
                                                      negotiation
      36  24  Unsigned      4  SSIXLK_XLKXAMSG        Count of messages sent in
                                                      order to achieve exclusive
                                                      acquires
      40  28  Unsigned      4  SSIXLK_XLKXARPL        Count of messages received
                                                      in response to exclusive
                                                      acquires
      44  2C  Unsigned      4  SSIXLK_XLKCLENS        Count of cleanups performed
                                                      on this lock
      48  30  Character     4  *                      Reserved for IBM use
      52  34  Character     8  SSIXLK_XLKXAWTM        TOD time spent deferred
                                                      waiting to communicate for
                                                      excl. acq.
      60  3C  Character     8  SSIXLK_XLKXARTM        TOD time spent deferred
                                                      waiting for responses to
                                                      excl. acq.
      68  44  Character     8  SSIXLK_XLKXRWTM        TOD time spent deferred
                                                      waiting to communicate for
                                                      excl. rel.
      76  4C  Character     8  SSIXLK_XLKXRRTM        TOD time spent deferred
                                                      waiting for responses to
                                                      excl. rel.
      84  54  Character     8  SSIXLK_XLKXHELD        TOD time spent holding the
                                                      lock exclusively across the
                                                      SSI on behalf of this system
      92  5C  Unsigned      4  SSIXLK_XLKMRTRY        Maximum number of retries
                                                      ever seen for any acquisition
                                                      of this lock.
      96  60  Unsigned      4  SSIXLK_XLKTRTRY        Total number of retries for
                                                      all acquisitions of this
                                                      lock.
     100  64  Unsigned      2  SSIXLK_XLKHGBST        Highest priority boost ever
                                                      seen for this lock.
     102  66  Unsigned      2  *                      Reserved for IBM use
     104  68  Character     0  SSIXLK_END

#### MRSSIXLK 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
    SSIXLK                     0    104
    SSIXLK_END                68      0
    SSIXLK_MRHDR               0      0
    SSIXLK_RDEVDEV            16      2
    SSIXLK_XLKCLENS           2C      4
    SSIXLK_XLKHGBST           64      2
    SSIXLK_XLKMRTRY           5C      4
    SSIXLK_XLKTRTRY           60      4
    SSIXLK_XLKTYPE            14      1
    SSIXLK_XLKXAMSG           24      4
    SSIXLK_XLKXARPL           28      4
    SSIXLK_XLKXARTM           3C      8
    SSIXLK_XLKXAWTM           34      8
    SSIXLK_XLKXDFRS           20      4
    SSIXLK_XLKXHELD           54      8
    SSIXLK_XLKXLGET           18      4
    SSIXLK_XLKXRRTM           4C      8
    SSIXLK_XLKXRWTM           44      8
    SSIXLK_XLKXXGET           1C      4

    This information is
    based on z/VM V7R2.0.

    Last updated on 08 August 2020 at 21:24:43.

    Copyright IBM Corporation, 1990, 2020