]> On Monday, July 14, 2003, at 08:37 PM, SooHyoung Oh wrote: > > I didn't read your message seriously, > but in my first glance, what you want to seems to be asychroneous > threads. > Why don't you use Event module of threads library? > It's a Concurrent ML. The implementation is up to the actual PortAudio implementors themselves, which is different on all the platforms that PortAudio runs on. They use a callback based API as the common interface that each PortAudio implementation would follow. I have no say over whether they should use Event module or otherwise. Event is synchronous. The problem of wrapping PortAudio callbacks using Event is that callbacks have a realtime requirement, that is, they're required to finish within a certain amount of time, so they must be processed right away, unlike Event that counts on being received at some convenient time. Callbacks need to return directly to PortAudio for further processing. Hope this clarifies. liulk ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners