On Fri, 02 Jan 2004, Jon Parise wrote:
> It looks like this code from zend_execute.c is responsible for the
> added reference:
>
> if (PZVAL_IS_REF(value) && value->refcount > 0) {
> ALLOC_ZVAL(variable_ptr);
> *variable_ptr_ptr = variable_ptr;
> *variable_ptr = *value;
> zval_copy_ctor(variable_ptr);
> variable_ptr->refcount=1;
> break;
> }
>
> In my case, 'value' is a reference (PZVAL_IS_REF(value) == 1), and in
> the case of the native PHP object, it isn't. zval_copy_ctor() calls
> zend_objects_store_add_ref(), which increments the store object's
> reference count.
>
> Two questions:
>
> Why is my object being treated as a reference while the native PHP
> object is not?
I guess that is a question for you really: are you doing anything
special to make your object a reference? I've used the new object model
for PHP-GTK and my objects were not treated as references.
> 'variable_ptr->refcount=1;' resets the reference count of the
> variable's zval to 1, but the underlying _store_object's reference
> count is still incremented. What will ever reclaim that reference on
> the _store_object?
zval_dtor() will. It calls del_ref on the underlying object.
- Andrei
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