On 2018-03-29 08:15, Thomas David Rivers wrote:
The documentation for "Subpool handling" from the Assembler Services Guide
indicates that (for subpools 0-127, which are task-related) "when the task
terminates, the system automatically releases any of the subpool from
0 through 127 that are unshared and are associated with the task."
It then goes on to note that the SHSPV and SHSPL option on the
ATTACH/ATTACHX
macro can be used to indicate that a subpool is to be shared (other than
subpool 0
which is, by default, shared.)
My question is the attribute of "shared" - once a subpool is marked shared,
can it ever be marked non-shared again? Once all sub-tasks end, does it
revert back to non-shared, and thus when the main task ends, would the
subpool
be released by the OS?
I can't seem to find any commentary on that question...
That is - if a multi-task address space shares a subpool; is it the
responsibilty
of the main task to release the shared subpool, or will the OS do this when
the main task ends?
- Thanks -
- Dave Rivers -
These should help:
https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.2.0/com.ibm.zos.v2r2.ieaa800/pers.htm
https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.2.0/com.ibm.zos.v2r2.ieaa800/sptbl.htm
--
Regards, Gord Tomlin
Action Software International
(a division of Mazda Computer Corporation)
Tel: (905) 470-7113, Fax: (905) 470-6507
Support: https://actionsoftware.com/support/
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