Re: [Dynapi-Dev] removing layers

[Raymond I. <xw...@ya...>]

This sound great Chris!

In dynapi_ns4.js there's a recycled array that's used
to recycle used layers. I don't think this is
currently being used. If you can get these changes
along with an example to us (or in cvs) then it would
well appreciated.

Many thanks for helping us with this memory problem.



Best regards,

--
Raymond Irving

--- Chris Greener <chr...@ms...> wrote:
> I ran a continuous test in both IE6 and NS7 and
> found calling addChild as designed loses memory.
> The test was continuous with 100th second delay. In
> IE memory usage gradually increased a few bytes each
> minute in NS7 Megs were consumed. After removing the
> destroy method, memory remained constant with IE and
> increased very slowly with NS (bytes).
> There were also significant speed gains from both
> browsers. These finding are consistent with work I
> did with communicator about 6 years ago where I
> couldn't find a way to destroy layers instead I
> opted to create a reusable layer pool for discarded
> layers. 
> The Image loading issue I discussed was my system. I
> now know after a long painful process that XP-Pro
> running IIS has a built in limit of 10 connections.
> 
> ----- Original Message ----- 
>   From: Raymond Irving 
>   To: Chris Greener ;
> dyn...@li... 
>   Sent: Monday, June 23, 2003 6:23 AM
>   Subject: Re: [Dynapi-Dev] removing layers
> 
> 
>   Hi Chris,
> 
>   --- Chris Greener <chr...@ms...> wrote:
>   > I'm new to the product so please bear with me.
>   > Environment: 3.0 Beta/IE6
>    
>   Welcome to the DynAPI dev group. Glad to have you
>   aboard.
> 
>   > When using the addChild() method to move a
> dynlayer
>   > to another dynlayer parent the elm and it child
>   > elements are first destroyed and then
> re-created. Is
>   > there a reason for destroying the element
> layers?
>   > Also during this process child layers with
> images
>   > intermittently stopped loading causing IE to
> spin
>   > until the image load timed-out. Is this a known
>   > issue? 
>   > 
>   > I modified the _remove method to stop the elm
> from
>   > being destroyed and modified _create method to
>   > re-use the same elm. 
>   > something like the following:
>   >   if(this.elm) {
>   >    parentElement = this.parent.elm;
>   >    parentElement.appendChild(this.elm);
>   >    DynLayer._assignElement(this,this.elm);
>   >    DynElement._flagCreate(this);
>   >   }
>   > 
>   > This considerably speeded up the re-draw process
> and
>   > seems to have fixed the image load issue.
>   > 
>   > Comments welcome?
>   > 
> 
>   How does this fix affects the other browsers (such
> as
>   IE4, Mozilla, opera, etc)? The reason for
> destroying
>   the elm was to release memory, etc. I'm not sure
> it
>   DOM will automatically remove the elm from one
> parent
>   to the next. But if this works fine then we can
> look
>   into it. To submit patches you can 1) make your
>   change, 2) Zip the modified file into a .zip file,
> 3)
>   upload them through the patch service on DynAPI's
>   website.
> 
>  
>
http://sourceforge.net/tracker/?group_id=5757&atid=305757
> 
>    
>   > Bugs found: Is this the right place to post
> them?
>   > dynlayer_ie: setLocation and setPageLocation
> methods
>   > are broken. setClass needs overriding
> 
>   Well, normal you could post them to the bugs
> section
>   of the site
>  
>
(http://sourceforge.net/tracker/?group_id=5757&atid=105757)
>   or you could send an email to the dev-help group,
> etc.
>   But since you've made mention of it we can deal
> with
>   it as we speak. 
> 
>   Please provide a working example of the bugs and
> send
>   it to this group.
> 
>   Best regards,
> 
>   --
>   Raymond Irving
> 
>   > 
>   > Thx
>   > ChrisG
>   > 
>   > 
>   > 
>   > 
>   > 
>   > 
> 
> 
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