Re: Ending/canceling/suspending a thread (proposal)

From: williamkempf_at_[hidden]
Date: 2001-08-23 10:15:47

--- In boost_at_y..., "Scott McCaskill" <scott_at_m...> wrote:
> I just remembered another problem that someone else pointed out 
when this
> was discussed a while back--using exceptions for thread 
cancellation would
> mean that you would have to make sure that you never called any 
cancellation
> points (directly or indirectly) from a destructor.  That's a much 
bigger
> concern--we couldn't even have scoped_lock then, not and also have 
robust
> cancellation.

That's why you *MUST* be able to set the cancellation state.  In a 
destructor that calls a cancellation point you'd need to temporarily 
turn cancellation off.  (This is one case where it would be nice for 
language support to insure this for us.  Until then we can do it 
manually.)

Bill Kempf