CKP_HDR
Prolog  
Control Block Contents  
   CKP_HDR DSECT
Storage Layout  
Cross Reference (Contains links to field and bit definitions)  

CKP_HDR Prolog
 NAME       : STRUCPRA
 DSECT      : CKP_HDR
 STATUS     : VM/ESA Version 1, Release 2.0
 DESCRIPTION: Checkpoint data header
 

 
 
 CKP_HDR Control Block Content

CKP_HDR DSECT
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' suspend data read
          .1.. ....      CKP_FLAG_BLKRD X'40' 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
*** 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
 (contains links to field and bit definitions)
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 VM/ESA 2.4.0.
Last updated on 19 Aug 1999 at 15:30:08 EDT.

Copyright IBM Corporation, 1990, 1999