[ofiwg] wait sets

[Hefty, Sean]

> Will this still require processing all queues attached to a wait object,

No - it should not

> or is there going to be an interface call added to somehow retrieve
> information about which queues signaled (if possible)?

If an app is using a wait set, using a poll set to get this list makes sense.  If the app is using wait objects associated with the CQ, the app can select the queues to check based on the output from select/poll.  There are a couple ways for the app to handle this.