Re: [xml] Possible memory leak in extension functions

On Tue, 18 Feb 2003, Matt Sergeant wrote:

On Tue, 18 Feb 2003, Daniel Veillard wrote:

  if, on an XPATH_NODESET object you set obj->boolval to 1, then
assuming also that you have groupped the nodes built for that nodeset
back into a container node, then setting obj->user to that tree will
in effect free up the whole tree when the nodeset is deallocated.

Unfortunately I have no idea what you mean when you say "groupped the
nodes ...". Do you have a API I can look at?

Never mind - I figured it out. Final code is now:

            ret = xmlXPathNewNodeSet(NULL);
            ret->boolval = 1;
            array_result = (AV*)SvRV(perl_result);
            while (av_len(array_result) >= 0) {
                tmp_node1 =
                tmp_node = xmlDocCopyNode(tmp_node1, ctxt->context->doc,
                xmlXPathNodeSetAdd(ret->nodesetval, tmp_node);
                if (ret->user == NULL) {
                    ret->user = (void*)tmp_node;
                else {
                    xmlNodePtr old = (xmlNodePtr)(ret->user);
                    old->prev = tmp_node;
                    tmp_node->next = old;
                    ret->user = (void*)tmp_node;

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