SECBK

Prolog  

Control Block Contents  
   SECBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

SECBK Prolog

 NAME       : HCPSECBK
 DESCRIPTION: An element of the SECONDARY USERIDS TABLE
 DSECT      : SECBK (for IDOFFSET) / SECBB (for LIKE declares)
 FUNCTION   :
              Used to map information for an element of the
              TABLE OF SECONDARY USERIDS. It is maintained
              by HCPSEC. This table is neccessary to improve
              the performance of HCPSEC.
 LOCATED BY : SYSSECQ, an anchor located in SYSCM
 CREATED BY : HCPSEC
 DELETED BY : HCPSEC
 RELOCATION CONSIDERATIONS : None
  otes-
              - The TABLE OF SECONDARY USERIDS is anchored in SYSCM.
              The lock for the table is SYSSECLK.
              - The definition for each field in an element of the
              TABLE OF SECONDARY USERIDS is:
              - SEC_NEXT = points to the next element, if there is no
              next element then it is zero.
              - SEC_SECONDARY_USERID = has a user-id that can be found
              in the VMDSECU of some user in the system.
              - SEC_NUMBER_OF_REQUESTORS = the number of users in the
              system whose VMDSECU is the same as
              the SEC_SECONDARY_USERID of this element.
              - The invariant for this table
              (TABLE_OF_SECONDARY_USERIDS) is:
              A user-id is in this table if and only if there is some
              user in the system whose VMDSECU field contains
              this user-id, and, the SEC_NUMBER_OF_REQUESTORS is the
              number of users in the system whose VMDSECU field
              contains this user-id.

SECBK Control Block Content

SECBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      SECBK          An element of the SECONDARY USERIDS TABLE
0000    0 Address      4 SEC_NEXT       Next SECBK address
0004    4 Character    8 SEC_SECONDARY_USERID
                                        Secondary userid
000C   12 Signed       4 SEC_NUMBER_OF_REQUESTORS
                                        Referring users
          00000002       SECSIZE        (*-SECBK+7)/8 SECBK size in
                                        doublewords

SECBK Storage Layout

          
*** SECBK - An element of the SECONDARY USERIDS TABLE
*
*     +---------------------------+---------------------------+
*   0 |         SEC_NEXT          |  SEC_SECONDARY_USERID-    |
*     +---------------------------+---------------------------+
*   8 |          -(004)           | SEC_NUMBER_OF_REQUESTORS  |
*     +---------------------------+---------------------------+
*  10
*
*** SECBK - An element of the SECONDARY USERIDS TABLE

SECBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
SEC_NEXT       0000
SEC_NUMBER_OF_REQUESTORS
               000C
SEC_SECONDARY_USERID
               0004
SECSIZE        000C 00000002