Subj : Re: speed-up critical regions
To   : comp.programming.threads
From : David Schwartz
Date : Wed Jun 15 2005 05:21 pm


<amorox@gmail.com> wrote in message 
news:1118873412.659131.122870@g14g2000cwa.googlegroups.com...

> I thought about using 'local' pools for each thread.

> Unfortunatelly this is not solving the problem. The locks are still
> needed.

> An object could be visible over multiple threads. So, while Thread A
> may ask for a new object, Thread B may ask for destroying an object was
> created by Thread A. Both are acting on the internal structure of the
> same pool (owned by Thread A), so you need to lock the alloc function
> against the destroy function.

    Just return the object to thread B's allocator. You may need to balance 
the allocators though, which is kind of a PITA.

    DS

.