non-blocking reads/writes and event loops

[Todd Whitesel]

> However, threads may need to be used in the case where you only have a
> blocking API to control the inferior, but in that case all you are doing is
> using threads to fix this local deficiency, not pushing it into the gdb
> architecture.  I think this is managable.

Agreed. If the API designers are dumb enough to trust threads absolutely,
and don't give us an option, then well, that's life.

-- 
Todd Whitesel
toddpw @ windriver.com