On 5/09/2018 2:03 PM, Gord Tomlin wrote:
Unlike SYSDSN, SPFEDIT is not taken care of by the system. There are
plenty of IBM and non-IBM programs that do not follow the SPFEDIT ENQ
conventions, and I don't think any product other than ISPF itself
would be APARable for failing to do so. Since it is not universal, it
does not carry the same level of reliability. It's like a gentlemen's
agreement in a world where not all are gentlemen.
All serialization mechanisms are gentlemen's agreements. The system
doesn't really take care of SYSDSN - you are free to update a dataset
with DISP=SHR if that is what you specify.
Which products request their own ENQs and update PDS members without
SPFEDIT or exclusive SYSDSN? I seem to recall that other components do
use SPFEDIT for member serialization - the linkage editor/binder comes
to mind.
--
Andrew Rowley
Black Hill Software
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