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Prolog 
Control Block Contents 
   EVNBK DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  EVNBK Prolog Top of page
  
 NAME       : HCPEVNBK
 DESCRIPTION: C System Services Event block
 DSECT      : EVNBK
 FUNCTION   : C System Services Event block used to describe a
              Event used by platform specific C Services
 LOCATED BY : Passed as argument on eventWait and eventNotify
              services
 CREATED BY : allocateEvent service
 DELETED BY : deallocateEvent service
 SERIALIZED : A latch or lock is held (EVNLATLK) before
              this control block is updated.
 RELOCATION CONSIDERATIONS : None
 NOTES      :
 
 
  EVNBK Control Block Content Top of page
  




 EVNBK DSECT
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Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      EVNBK          C System Services Event block
0000    0 Address      4 EVNLATLK       Pointer to latch or lock -
                                        HCPLATBK or HCPLOCBK (for debug
                                        only)
0004    4 Address      4 EVNQUEUE       Pointer to chain of deferred
                                        CPEBKs
0008    8 Signed       8 EVNNTTOD       Timestamp when event last
                                        notified (for debug)
0010   16 Address      8 EVNNTFNH       fnhdr pointer for last function
                                        which called notifyEvent (for
                                        debug only)
          00000018       EVNBSIZE       *-EVNBK size in bytes
          00000003       EVNSIZE        (*-EVNBK+7)/8 size in double
                                        words
 
 
  EVNBK Storage Layout Top of page
  
          
*** EVNBK - C System Services Event block
*
*     +---------------------------+---------------------------+
*   0 |         EVNLATLK          |         EVNQUEUE          |
*     +---------------------------+---------------------------+
*   8 |                       EVNNTTOD                        |
*     +-------------------------------------------------------+
*  10 |                       EVNNTFNH                        |
*     +-------------------------------------------------------+
*  18
*
*** EVNBK - C System Services Event block
 
 
  EVNBK Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
EVNBSIZE       0010 00000018
EVNLATLK       0000
EVNNTFNH       0010
EVNNTTOD       0008
EVNQUEUE       0004
EVNSIZE        0010 00000003
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:50:14 EDT.
Copyright IBM Corporation, 1990, 2022