From: Talbot, George (Gtalbot_at_[hidden])
Date: 2006-11-22 16:23:43
OK...so I've been looking at this, and I'm having a bit of trouble
reading it. Am I right in saying that ptr_base<> is your refcounted
What I'm trying to go for is to see how close to the shared_ptr<> public
interface I can get for an atomic refcounted pointer. I'll shortly post
a working prototype wrapper for shared_ptr<> that uses a spinlock, as a
demonstration of the interface that I'm looking for.
Looking more closely at your ptr_base<> template (sorry I didn't get to
it before...I've had a bit of time the last couple of days), I would
like to discuss further with you how close in interface to shared_ptr<>
one could come with the techniques you describe.
Is the stuff (vzoom, refcount, appcore) you are working on public, or is
this part of a proprietary thing?
Thanks for pointing me to your code, it's been helpful in trying to
understand this stuff.
-- George T. Talbot <gtalbot_at_[hidden]> > -----Original Message----- > From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] > On Behalf Of Chris Thomasson > Sent: Thursday, November 16, 2006 7:18 PM > To: boost_at_[hidden] > Subject: Re: [boost] I think using spinlocks to simulate an > atomicshared_ptr isdeadlock-prone, or inefficient. > > > I read the stuff from Chris Thommason and I have to admit that I'm not > > too sure how I'd wrap shared_ptr with it to make this work. > > Here is an alternative to shared_ptr: > > http://appcore.home.comcast.net/vzoom/refcount/ > > This is my version of an atomically thread-safe reference counting that > covers both basic and strong thread-safety models. Parts of it can also be > used in a signal handler, because it has 100% lock-free weak > increments/decrements' and pointer swap operations. It amortizes lock > actions from the first strong reference to an object X, down to the > drop-to-zero condition of object X. What do you think? > > > > _______________________________________________ > Unsubscribe & other changes: > http://lists.boost.org/mailman/listinfo.cgi/boost
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