On 30 May 2011 12:26, Paul Gilmartin <[email protected]> wrote: > On May 30, 2011, at 09:54, Chris Mason wrote: >> >> ..., with the exception ..., no asynchronous >> exit routine can interrupt another asynchronous exit routine; >> ... > Is this accomplished as simply as by inserting the RB in a > suitable position in the RB queue? Is this facility GUPI?
I think it's just saying that VTAM has to dispatch these routines, and it won't give control to one unless the last one has finished. Rather like STIMER. The exception is when VTAM is going down NOW, and it's probably a good thing to let *that* exit run regardless. Tony H.
