IBM SC33-1683-02 - Manual (Page 352)

Kernel domain functions
The START_PURGE_PROTECTION function
The START_PURGE_PROTECTION function is provided on the DFHKEDSX macro
call. It inhibits purge, but not force-purge, for the current task. This function can be
used by all global user exit programs if they want to inhibit purge during a global
user exit call.
In general, each START_PURGE_PROTECTION call should have a corresponding
STOP_PURGE_PROTECTION function call to end the purge protection period on
completion of any program logic that needs such protection.
START_PURGE_PROTECTION
DFHKEDSX [CALL,]
[CLEAR,]
[IN,
FUNCTION(START_PURGE_PROTECTION),]
[OUT,
RESPONSE (name1 | *)]
There are no input or output parameters on this call, only a RESPONSE.
RESPONSE values for START_PURGE_PROTECTION:
RESPONSE REASON
OK None
DISASTER None
INVALID None
The STOP_PURGE_PROTECTION function
The STOP_PURGE_PROTECTION function is provided on the DFHKEDSX macro
call. It is re-enables purge for the current task after purge has been suspended by a
preceding START_PURGE_PROTECTION function call.
STOP_PURGE_PROTECTION
DFHKEDSX [CALL,]
[CLEAR,]
[IN,
FUNCTION(STOP_PURGE_PROTECTION),]
[OUT,
RESPONSE (name1 | *)]
There are no input or output parameters on this call, only a RESPONSE.
RESPONSE values for STOP_PURGE_PROTECTION:
RESPONSE REASON
OK None
DISASTER None
INVALID None
kernel domain functions
320 CICS TS for OS/390: CICS Customization Guide
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