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Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
CKIBK
Cross Reference (Contains links to field and bit definitions)
CKIBK Prolog
NAME : HCPCKIBK
DESCRIPTION: SYSTEM CHECK POINT INTERFACE BLOCK
DSECT : CKIBK
FUNCTION : Contains the information shared by modules HCPCKP
and HCPCKS during the checkpoint process.
LOCATED BY : HCPWRKCK - Storage in the HCPWRK data area. This is
one of the first modules loaded at IPL
and remains in storage across a bounce.
CREATED BY : N/A
DELETED BY : N/A
NOTES : Any module that copies in HCPCKIBK MUST also
copy in HCPFIOBK because HCPCKIBK refers to FIOSIZE.
CKIBK Control Block Content
CKIBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure CKIBK SYSTEM CHECK POINT INTERFACE BLOCK Program flags 0000 0 Bitstring 1 CKIFLAG1 Program execution flag .... ...1 CKINOCLK X'01' Time of Day clock is invalid .... ..1. CKIRSUME X'02' Resume interrupted checkpoint ...1 .... CKIALLFL X'10' Checkpoint area is full ..1. .... CKINM981 X'20' Message 981 already issued .1.. .... CKINM982 X'40' message 982 already issued 0001 1 Bitstring 7 * Reserved for IBM use Save and work areas CKIOLSTB and CKIOLSTC are parameter lists mapped by the FIOBK. If the length of the FIOBK changes, then the length of CKIOLSTB and CKIOLSTC change as well and all the modules that copy in HCPCKIBK must be reassembled. ESA122: The replication of the CKIOLSTB for BLOCKMAP is 10 0008 8 Signed 4 CKIOLSTB (FIOSIZE*8/4) Stand-alone block I/O plist ESA122: The replication of the CKIOLSTC for BLOCKMAP is 10 0030 48 Signed 4 CKIOLSTC (FIOSIZE*8/4) Stand-alone ASA I/O plist 0058 88 Signed 4 CKIBLKST Starting block no. for entry 005C 92 Signed 4 CKIBLKCT No. blocks in current entry 0060 96 Signed 4 CKIPTNDX Buffer offset to next record slot 0064 100 Signed 2 CKIALRM Alarm code for operator or not 00000065 CKIALRM2 CKIALRM+1 Actual alarm byte 0066 102 Signed 2 * Reserved for IBM use 0068 104 Dbl-Word 8 * (4) Reserved for IBM use 00000011 CKISIZE (*-CKIBK+7)/8 CKIBK size in doublewords
CKIBK Storage Layout
*** CKIBK - SYSTEM CHECK POINT INTERFACE BLOCK * * +------+------------------------------------------------+ * 0 |:FLAG1|////////////////////////////////////////////////| * +------+------------------------------------------------+ * 8 | | * = CKIOLSTB = * | | * +-------------------------------------------------------+ * 30 | | * = CKIOLSTC = * | | * +---------------------------+---------------------------+ * 58 | CKIBLKST | CKIBLKCT | * +---------------------------+-------------+-------------+ * 60 | CKIPTNDX | CKIALRM |/////////////| * +---------------------------+-------------+-------------+ * 68 |///////////////////////////////////////////////////////| * =///////////////////////////////////////////////////////= * |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * 88 * *** CKIBK - SYSTEM CHECK POINT INTERFACE BLOCK
CKIBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----CKIALLFL 0000 10
CKIALRM 0064
CKIALRM2 0064 00000065
CKIBLKCT 005C
CKIBLKST 0058
CKIFLAG1 0000
CKINM981 0000 20
CKINM982 0000 40
CKINOCLK 0000 01
CKIOLSTB 0008
CKIOLSTC 0030
CKIPTNDX 0060
CKIRSUME 0000 02
CKISIZE 0068 00000011
Last updated on 3 Aug 1999 at 11:45:35 EDT.
Copyright IBM Corporation, 1990, 1999