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  2. RPG400-L
  3. November 2020

Re: User Index - updated by multiple jobs

Of course, but the OS handles it, then I don't need to.

Charles

On Wed, Nov 4, 2020 at 5:00 PM Alan Campin <alan0307d@xxxxxxxxx> wrote:

It would be simple enough to add your own locking. Either just request to
lock the object or create a data area and read in with a lock. Either way
your couldn't have too people in at same time.


On Wed, Nov 4, 2020 at 3:38 PM Bruce Vining <bruce.vining@xxxxxxxxx>
wrote:

I would consider it an APARable situation if it didn't allow concurrent
access.

On Wed, Nov 4, 2020 at 2:01 PM Charles Wilt <charles.wilt@xxxxxxxxx>
wrote:

All,

Considering using a "permanent" user index (*USRIDX) as a cache for
some
values retrieved from a web service call.

Question, does a user index support concurrent access/updates?

Specifically, can multiple jobs call the Add User Index Entries
(QUSADDUI)
API at the same time?

It's marked threadsafe, so I suppose the answer must be yes. But
there's
nothing in the documentation about how concurrency is handled.

I've never used a user index in this manner, so just looking for
confirmation that this should work fine.

Thanks!
Charles
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Thanks and Regards,
Bruce
931-505-1915
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