[c++-pthreads] concrete library-code example

[Alexander Terekhov]

Dave Butenhof wrote:
[...]
> returned by read). The ECANCELLED some have proposed would be lost, and
> that's unacceptable. This is why we settled on exceptions to represent
> cancellation. 

And asynchronous cancelability was another reason, I guess. Oder? ;-)

regards,
alexander.