On 08 Jan 2013 10:24, Rick.Chevalier@xxxxxxxxxxxxxxx wrote:

Multiple programs can access a user index at the same time. The key
is how they access it. You can do a 'destructive' read which removes
the entries when they are read or you can simply read the entries.
Obviously, if entries are removed when read they won't be available
for other programs to access.

What MI instruction or API provides a "destructive read" capability for a User Index object? There is the by-default destructive-read of messages read from a Data Queue, and there is an alternate means to effect a non-destructive-read of messages\entries on a queue. Or was perhaps a private interface that combines the effects of FNDINXEN and RMVINXEN [or the equivalent APIs: Retrieve User Index Entries (QUSRTVUI) API and Remove User Index Entries (QUSRMVUI) API] being described, rather than a specific method provided by the OS to access the Independent Index?

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