[silva-dev] possible memory leak with the EditorSupportNested

[Clemens Robbenhaar]

Hi again,

 some more information about my last problem:

 [...]
 >  1. go to the edit tab of a Silva Document
 >  2. open some paragraph for editing
 >  3. click the "save" button
 > 
 > repeating step 3. for a while leads to an increase of reference counts 
 > of some ParsedXML documents ,HTTPRequests, etc in the 
 > /ControlPanel/DebugInfo/manage_main

 well, I have found the time to reproduce the issue wiht a newer,
unpatched version.

 With the following setup:

Zope 2.6.1 / Python 2.1.3
Annotation-0_4_1
ParsedXML 1.3.1
ProxyIndex-1_1
Silva 0.9.2.2
SilvaMetadata-0_6
XMLWidgets-0_9

I get the following reference count increments for each time saving a
paragraph (without any markup):

Acquisition.ImplicitAcquirerWrapper         +21
Acquisition.ExplicitAcquirerWrapper          +7
Products.XMLWidgets.WidgetDOM.WidgetElement  +2
Products.XMLWidgets.WidgetDOM.WidgetNodeList +2
Products.ParsedXML.DOM.Core.ChildNodeList    +2
Products.ParsedXML.DOM.Core.Element          +1
Products.ParsedXML.DOM.Core.Text             +1
Products.ParsedXML.DOM.Core.Document         +1
Products.ParsedXML.ParsedXML.ParsedXML       +1
Products.XMLWidgets.WidgetDOM.WidgetDocument +1
ZPublisher.BaseRequest.RequestContainer      +1
ZPublisher.HTTPRequest.HTTPRequest           +1
ZServer.HTTPResponse.ZServerHTTPResponse     +1


Incidentially I found that even moving elements up or down in the editor
leads to the following reference counts:

Acquisition.ImplicitAcquirerWrapper            +17
Acquisition.ExplicitAcquirerWrapper             +6
Products.XMLWidgets.WidgetDOM.WidgetElement     +3
Products.XMLWidgets.WidgetDOM.WidgetNodeList    +2
Products.ParsedXML.DOM.Core.ChildNodeList       +2
Products.XMLWidgets.WidgetDOM.WidgetDocument    +1
ZPublisher.HTTPRequest.HTTPRequest              +1
ZPublisher.BaseRequest.RequestContainer         +1
ZServer.HTTPResponse.ZServerHTTPResponse        +1

I have no clue why this happens. Wiping out the sessions by editing the
/temp_folder/session_data seems not to help for me (though its getting
a little late (local time), and I am maybe starting to see white mice).

 It would be nice if someone tries to reproduce these findings before I
make an issue out of it.

Cheers,
Clemens