EVNBK

Prolog  

Control Block Contents  
   EVNBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

EVNBK Prolog

 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.
 Notes      :

EVNBK Control Block Content

EVNBK DSECT

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 Dbl-Word     8 EVNNTTOD       Timestamp when event last
                                        notified (for debug)
0010   16 Dbl-Word     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

          
*** EVNBK - C System Services Event block
*
*     +---------------------------+---------------------------+
*   0 |         EVNLATLK          |         EVNQUEUE          |
*     +---------------------------+---------------------------+
*   8 |                       EVNNTTOD                        |
*     +-------------------------------------------------------+
*  10 |                       EVNNTFNH                        |
*     +-------------------------------------------------------+
*  18
*
*** EVNBK - C System Services Event block

EVNBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
EVNBSIZE       0010 00000018
EVNLATLK       0000
EVNNTFNH       0010
EVNNTTOD       0008
EVNQUEUE       0004
EVNSIZE        0010 00000003