Re: [Firebird-devel] Providers, yvalve, external engines and object lifecycle

[Adriano d. S. F. <adr...@gm...>]

On 28-03-2011 04:36, Alex Peshkoff wrote:
> Certainly, more clever helper object can solve a problem. But I do not
> see a way to build it without lock. And I claim that this is too high
> price for removing reference counters from API.
> 
I must say here that if you're going to create proxy objects that do:
if (x)
    x->something();

And concurrently do:
x = NULL;

let saying, "x" is a Jrd::Attachment or a jrd_tra, this is VERY incorrect.


Adriano