Parameter list for log capture routines

At invocation, registers are set, and the log capture routine uses the standard exit parameter list (EXPL). You can ignore the reason and return codes in that list.

Begin program-specific programming interface information.

The following is a list of the exit-specific parameters; it is mapped by macro DSNDLOGX.

Table 1. Log capture routine specific parameter list
Name Hex offset Data type Description
LOGXEYE 00 Character, 4 bytes Eye catcher: LOGX
LOGXLNG 04 Signed 2-byte integer Length of parameter list
  06   Reserved
  08   Reserved
LOGXTYPE 10 Character, 1 byte Situation identifier:
I
Initialization
W
Write
T
Termination
P
Partial control interval (CI) call
LOGXFLAG 11 Hex Mode identifier.
X'00'
SRB mode
X'01'
TCB mode
LOGXSRBA 12 Character, 6 bytes First log RBA, set when DB2® is started. The value remains constant while DB2 is active.
LOGXARBA 18 Character, 6 bytes Highest log archive RBA used. The value is updated after completion of each log archive operation.
  1E   Reserved
LOGXRBUF 20 Character, 8 bytes Range of consecutive log buffers:
  • Address of first log buffer
  • Address of last log buffer
LOGXBUFL 28 Signed 4-byte integer Length of single log buffer (constant 4096)
LOGXSSID 2C Character, 4 bytes DB2 subsystem ID, 4 characters left justified
LOGXSTIM 30 Character, 8 bytes DB2 subsystem startup time (TIME format with DEC option: 0CYYDDDFHHMMSSTH)
LOGXREL 38 Character, 3 bytes DB2 subsystem release level:
  • '810' for Version 8
  • '910' for Version 9
  • Start of change'101' for Version 10End of change
LOGXMAXB 3B Character, 1 byte Maximum number of buffers that can be passed on one call. The value remains constant while DB2 is active.
  3C 8 bytes Reserved
LOGXUSR1 44 Character, 4 bytes First word of a doubleword work area for the user routine. (The content is not changed by DB2.)
LOGXUSR2 48 Character, 4 bytes Second word of user work area.
End program-specific programming interface information.