Re: [boost] Re: Draft of generation 2 thread class

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2002-01-20 16:20:01

----- Original Message -----
From: "bill_kempf" <williamkempf_at_[hidden]>

> > It occurred to me that maybe the disable_cancellation class should
> > defer cancellation, rather then prevent it. It isn't clear in the
> > documentation which of the two behaviors it will have. The reason
> for
> > deferred cancellation is so the application doesn't have to keep
> > trying to cancel a thread until it finally succeeds. Implementation
> > would be simple: disabling/deferring cancellation doesn't prevent
> the
> > cancel flag from being set, just from being acted on.
>
> I thought the documentation covered this well enough.  Nothing ever
> prevents another thread from requesting the thread be cancelled.
> Disabling simply means that cancellation points do not throw
> regardless of any such pending requests.

I think Tom was concerned with whether the request gets discarded or will be
acted upon at the next cancellation point encountered with cancellation
enabled.

-Dave