🚀 go-pugleaf

I wonder if it would be possible for Apple to define a routine to let other
applications have a time slice which could run at interrupt time. For example,
if EventAvail was removed from the list of traps that may move or purge
memory, an application writer could install a VBL task which did nothing except
call EventAvail 60 times a second. Since EventAvail is (I believe) one of the
traps which allows context-switching, this would give programmers an easy way
to add preemptive multi-tasking to their applications.

Since each application runs in its own heap, it shouldn't have its own memory
moved or purged even if another application is run. I suppose you would get
into trouble if your app was allocating a block in the system heap, though.
Might there be some way around this?

Bill Lipa
Bitnet: lipa%polya@stanford