Possible language changes

[Doug Lea]

> Just to reiterate a relatively minor point, and make sure I'm not
> confused:
> 
> It seems to me that the Java notion of cancellation on a future
> is actually rather conservative compared to pthreads.  Setting
> mayInterruptIfRunning corresponds to a pthread cancellation
> type of PTHREAD_CANCEL_DEFERRED.  There is no equivalent of
> PTHREAD_CANCEL_ASYNCHRONOUS (which is almost always unsafe).
> 

Yes, exactly so. (Well, almost exactly. There are some java IO
methods that on some platforms actually async-cancel on
interrupt.)

-Doug