Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRSSIXLK
PrologControl 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 92 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 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 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 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 92 SSIXLK_END 5C 0 SSIXLK_MRHDR 0 0 SSIXLK_RDEVDEV 16 2 SSIXLK_XLKCLENS 2C 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 V6R2.0.
Last updated on 23 Nov 2011 at 15:33:04.
Copyright IBM Corporation, 1990, 2011