Re: [boost] Re: Boost.Thread

From: Victor A. Wagner, Jr. (vawjr_at_[hidden])
Date: 2002-09-16 11:04:07

At Monday 2002/09/16 05:29, you wrote:

>"Hillel Y. Sims" wrote:
> >
> > "Eric Woodruff" <Eric.Woodruff_at_[hidden]> wrote in message
> > news:014f01c25a8f$605ebd80$1800000a_at_soy...
> > > When return values enter the picture, join needs to become the return
> > value
> > > accessor, allowed to be called more than once
> >
> > If this is the case, how would the thread library know when to finally 
> clean
> > up the finished thread's resources?
>
>When the last reference goes away (i.e. managing thread objects via
>smart pointers; I'd even choose *AUTO*_ptr like move semantics by
>default with some "shared ownership" adapter for {current} standard
>containers and algorithms). http://www.terekhov.de/mythread.c
>
>---
>int my_thread_join( my_thread_t mt,void** value_ptr );
>
>int my_thread_tryjoin( my_thread_t mt,void** value_ptr );
>
>int my_thread_timedjoin( my_thread_t mt,
>                          struct timespec* timeout,
>                          void** value_ptr );
>---

So, we're going to intentionally put a "timing window" problem into user 
code....
multiple join() will work just fine _provided_ that all the relevant join() 
requests actually occur _before_ the thread terminates.  Otherwise, all 
bets are off.

I don't like it.

>regards,
>alexander.
>
>
>_______________________________________________
>Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost

Victor A. Wagner Jr.      http://rudbek.com
PGP RSA fingerprint = 4D20 EBF6 0101 B069 3817 8DBF C846 E47A
PGP D-H fingerprint = 98BC 65E3 1A19 43EC 3908 65B9 F755 E6F4 63BB 9D93
The five most dangerous words in the English language:
               "There oughta be a law"