[boost] Re: shared_ptr/weak_ptr and thread-safety

From: Alexander Terekhov (terekhov_at_[hidden])
Date: 2003-05-27 08:34:41

Peter Dimov wrote:
> 
> Trevor Taylor wrote:
> >
> > Why wait? With so many people contributing to boost, why not
> > introduce a pthread_refcount_t into  into boost threads (or is there
> > one already?), provide a default implementation equivalent to what
> > shared_ptr does now,
> 
> We can't; shared_ptr uses a single pthread_mutex to protects its two counts.
> A naive pthread_mutex based pthread_refcount_t would result in two mutexes,
> one per count.

Yeah. http://google.com/groups?q=PTHREAD_REFCOUNT_NONBLOCKING

regards,
alexander.