Re: [PHP4BETA] quick API question re refcounts in c-modules.

On Thu, 9 Dec 1999, Zeev Suraski wrote: > At 22:23 09/12/1999 , Thies C. Arntzen wrote: > >this is by no way really important, but i'd like to understand how we want > >to handle recursive refs like this ($this->parser is a resource keeping a > >ref of $this). > > I haven't really read your entire letter, I just glanced through this, so > there's a (small?) chance that I got it wrong. But as soon as I read the > above sentence, the simple answer that came to mind is that you simply can't. > > The reference mechanism in PHP 4.0 wasn't designed for building fancy data > structures such as recursive lists, and its behavior does prevent you from > doing that sort of stuff (that is, it's not that it is unstable, it's just > that its designed behavior doesn't fit the purposes of recursive data > structures). ok, 2nd try (to explain) - a c-module receive a ref to a php-var. - instead of "just-do-and-forget" this function want's to keep that ref for some time (see docs for ocibindbyname) -> so the c-module does an zval_add_ref() for that php-var. - this ref to php-var is kept in a zend-resource (eg an oracle-cursor) - when this resource (eg oracle-resource) gets destructed, it calles zval_del_ref() for the remembered references to php-vars. so far i hop you do agree... (i really do;-) problem is now when i do this inside an object with a reference to the object itself (my xml question from the 1st mail). got me? tc > Zeev > -- > Zeev Suraski <zeev@zend.com> http://www.zend.com/ > > Thies C. Arntzen "One Big-Mac, Small Fries and a Coke!" Digital Collections Phone +49 40 235350 Fax +49 40 23535180 Hammerbrookstr. 93 20097 Hamburg / Germany