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Prolog 
Control Block Contents 
   CKP_HDR 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.


  CKP_HDR Prolog Top of page
  
 NAME       : STRUCPRA
 DSECT      : CKP_HDR
 DESCRIPTION: Checkpoint data header
 
 
  CKP_HDR Control Block Content Top of page
  




 CKP_HDR DSECT
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Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      CKP_HDR        Checkpoint data header
0000    0 Signed       4 * (0)
0000    0 Signed       4 CKP_SUSPCNT    Suspended count
0004    4 Signed       4 CKP_BLKCNT     Blocked count
0008    8 Signed       4 CKP_FLAG (0)   Flags
0008    8 Bitstring    1 CKP_FLAG0
          1... ....      CKP_FLAG_SUSPRD
                                        X'80' CKP_FLAG_SUSPRD suspend
                                        data read
          .1.. ....      CKP_FLAG_BLKRD X'40' CKP_FLAG_BLKRD block data
                                        read
0009    9 Bitstring    1 CKP_FLAG1      Reserved
000A   10 Bitstring    1 CKP_FLAG2      Reserved
000B   11 Bitstring    1 CKP_FLAG3      Reserved
          Suspended checkpoint data entry
 
 
  CKP_HDR Storage Layout Top of page
  
          
*** CKP_HDR - Checkpoint data header
*
*     +---------------------------+---------------------------+
*   0 |       CKP_SUSPCNT         |        CKP_BLKCNT         |
*     +------+------+------+------+---------------------------+
*   8 |(008) |(009) |(00A) |(00B) | C
*     +------+------+------+------+
*
*** CKP_HDR - Checkpoint data header
 
 
  CKP_HDR Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
CKP_BLKCNT     0004
CKP_FLAG       0008
CKP_FLAG_BLKRD
               0008 40
CKP_FLAG_SUSPRD
               0008 80
CKP_FLAG0      0008
CKP_FLAG1      0009
CKP_FLAG2      000A
CKP_FLAG3      000B
CKP_SUSPCNT    0000
 
This information is based on z/VM 7.4.0 Last updated on 24 Jun 2024 at 11:38:22 EDT.
Copyright IBM Corporation, 1990, 2024