Re: persistent zval

> On 9 Dec 2014, at 19:45, Marc Bennewitz <dev@mabe.berlin> wrote: > > > Am 09.12.2014 um 20:03 schrieb Sara Golemon: >> On Tue, Dec 9, 2014 at 10:58 AM, Marc Bennewitz <dev@mabe.berlin> wrote: >>> Is it possible to make a zval persistent? >>> >> Nope. >> > Why? > > There is a reference counter, which should be increased on put a value into persistence and on > removing a value from persistence decrease it. > So the GC could handle unreferenced zvals. > > Example: > persist_set($key, $value); > persist_get($key); > persist_has($key); > persist_list(); // list of persistent values No, no the GC couldn’t. All zval data is stored in non-persistent memory allocated with emalloc(). The allocator destroys all of that at the end of the request/script execution. So you’d now have a dangling pointer. Kabewm! -- Andrea Faulds http://ajf.me/