Re: GNUstep-gui make problems (linking pthreads)

[Richard Frith-Macdonald]

On Tuesday, April 1, 2003, at 09:58  am, David Ayers wrote:

> Hi,
>
> Banlu Kemiyatorn wrote:
>
> > hello, I have a question.
> > how can I stop sorting an array while it is being sorted?
> > I want to sort a big array in a seperated thread but sometimes
> > the data that being sorted is obsolete and I don't want to
> > waste cpu time with that thread anymore. is it a safe way to
> > release the array and exit thread within the compare method?
>
> No it wouldn't be as the code doing the sorting has no way of knowing 
> that 'self' (a variable) has become obsolete.  I think you will 
> probably need a custom subclass of NSArray which implements an 
> invalidatin mechanism a sorting routine which uses it.

Perhaps you could sort using a function rather than the selector, and 
provide a mechanism for that function to tell that sorting should be 
aborted (upon which it could cause the thread to exit).