Thread: [Dynapi-Dev] memory leak

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why in IE the simpe action of draging a layer 
causes memory leak's ?

I been working with DynAPI 3 for a couple of weeks now. Overall, I'm very
impressed and optimistic about the future of DynAPI.

I'm having trouble with (what I believe is) a memory leak in dynapi.js at
line 106:

        f.onunload = function() {
                //alert('hi');
                for (var i=0;i<o._unloadfn.length;i++) o._unloadfn[i]();
                if (o.document) {
                        o.document._destroy();
                        o.document = null;
                }
        };

I'm working on a window widget with quite a few DynLayers and when unload
event triggers, the document unloads before the above function is finished
and I get the following error in IE6:

    Error:'this.children[...]' is null or not an object

...at which point I notice that my available system memory has been reduced
by a couple hundred KBytes or so. I get the same error in Netscape 7.1, but
I can get around it by changing the event listener from 'onunload' to
'onbeforeunload'. Alas, this does not fix the problem in IE. Has anyone else
run into this problem? Are there any known workarounds? Thanks in advance
for you help and keep up the good work.

Jeremy Wanamaker

Could you please supply an example showing this error?

I think this has something to do with the ._destroy()
function

--
Raymond Irving

--- Jeremy Wanamaker <je...@ma...> wrote:
> I been working with DynAPI 3 for a couple of weeks
> now. Overall, I'm very
> impressed and optimistic about the future of DynAPI.
> 
> I'm having trouble with (what I believe is) a memory
> leak in dynapi.js at
> line 106:
> 
>         f.onunload = function() {
>                 //alert('hi');
>                 for (var
> i=0;i<o._unloadfn.length;i++) o._unloadfn[i]();
>                 if (o.document) {
>                         o.document._destroy();
>                         o.document = null;
>                 }
>         };
> 
> I'm working on a window widget with quite a few
> DynLayers and when unload
> event triggers, the document unloads before the
> above function is finished
> and I get the following error in IE6:
> 
>     Error:'this.children[...]' is null or not an
> object
> 
> ...at which point I notice that my available system
> memory has been reduced
> by a couple hundred KBytes or so. I get the same
> error in Netscape 7.1, but
> I can get around it by changing the event listener
> from 'onunload' to
> 'onbeforeunload'. Alas, this does not fix the
> problem in IE. Has anyone else
> run into this problem? Are there any known
> workarounds? Thanks in advance
> for you help and keep up the good work.
> 
> Jeremy Wanamaker
> 
> 
> 
>
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Are you sure? this was normally solved in version 2.53 - lets start testing
with the latest release, 2.54 released today, so we are all talking about
the same thing.
Memory leaks were a thing of the past AFAIK.

BTW your posts are not always readable due to a security warning.

Richard.

----- Original Message -----
From: "Bogdan Pietroiu" <bo...@fl...>
To: <dyn...@li...>
Sent: 27 June, 2001 17:32
Subject: [Dynapi-Dev] memory leak

> why in IE the simpe action of draging a layer
> causes memory leak's ?
>

Thread: [Dynapi-Dev] memory leak

dynapi-dev