[Isolate-interest] JSR-121 aggregates and links

[Godmar Back]

Hi,

returning after a long time to Java multi-tasking issues, I was
reading over the details of JSR-121 and a few basic questions popped
up.

The first question is about aggregates.  The FAQ mentions them, and so
does Pete's recent presentation, but I didn't see them in the proposed
API.  Did I overlook them?  What does the current specification say
about aggregates as far as how/whether they should be visible to an
isolate?  For example, are the methods that allow an isolate to
inquire about the aggregate in which it is executing, or inquire about
its parent/anchestors?

The second question is with regards to objects sent across Links, a
question I am sure was discussed at length in the expert group.  What
is the semantics of sending an object that is associated with some
capability (a file descriptor or socket) through a Link?

Students of mine are thinking of doing a prototype distributed
implementation of JSR-121, so answers to these questions would be
helpful.  It also seems that at least the second question should be
discussed as part of the API documentation.

Thank you!

 - Godmar