From: Lee Brown (lee_at_[hidden])
Date: 2002-01-14 23:27:39
> (C) is the biggest issue. The thread_ref you refer to below failed
> in this regard. Cancellation requests should really cause instant
> cancellation during such blocking operations. However, doing this in
> a portable manner, especially one that doesn't add overhead to such
> operations, is very difficult to do.
The only way to do this (UNIX) is by sending the thread a signal.