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GUI Resource Estimate [message #655696]

Tue, 22 February 2011 05:45

Eclipse User

We want to apply an automatic resource management strategy to manage GUI resources in our software.

To make effective decision about when to reclaim/dispose resources, we want some reasonable estimate of the size of resources consumed by each object tree and the available space.

The measure we use should be good enough, i.e. relatively reliable and easy to maintain. One of the candidate measures we are considering is the number of allocated handles.

* Is there a way to compute the number of handles held by an object tree?
* Is there a way to query the overall number handles held by the application?

Thanks!

Re: GUI Resource Estimate [message #656707 is a reply to message #655696]

Mon, 28 February 2011 03:32

Eclipse User

Take a look at Sleak : http://www.eclipse.org/articles/swt-design-2/sleak.htm It's a tool basically used for testing and finding unallocated/not disposed resources. Check the code inside and you will see that is very easy to get the number of handles and other related stuff. Hope it helps, I've used it a lot.

Re: GUI Resource Estimate [message #657014 is a reply to message #656707]

Tue, 01 March 2011 06:29

Eclipse User

Thanks! That is a great help!

One issue is that it seems to track only resources and not native widgets. Is there a similar way to track native widgets?

Re: GUI Resource Estimate [message #657677 is a reply to message #657014]

Thu, 03 March 2011 10:51

Eclipse User

Hi,

SWT does not have an equivalent tool for tracking widget handles, but since
everything's native, any tool that would be used to track widget handles in
a different context (eg.- a C++ app) should work equally well for SWT apps.

Grant

"Rune" <rug@maconomy.com> wrote in message
news:ikikum$8mk$1@news.eclipse.org...
> Thanks! That is a great help!
>
> One issue is that it seems to track only resources and not native widgets.
> Is there a similar way to track native widgets?

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