Subj : Re: Lock Free -- where to start
To   : comp.programming.threads
From : Sergey P. Derevyago
Date : Wed Oct 05 2005 02:09 pm

David Hopwood wrote:
> >       Moreover, some "lock free papers" define the "lock free" term in such a way
> > that old good spin _locks_ become lock free synchronization primitives!
> 
> You're probably confusing a statement about the *implementation* of the lock with
> a statement about the lock itself. 
>
	No, I'm not.

> Of course the implementation of a lock will
> be lock-free (unless one kind of lock is being implemented in terms of another).
>
	Yes. The point is that some "lock free" algorithms just implement well known
locking patterns in user code. Their argumentation is: I don't call
mutex.lock() so my code is lock free...

> It won't be wait-free, though.
> 
--
         With all respect, Sergey.               http://ders.angen.net/
         mailto : ders at skeptik.net

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