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Re: Memory leak with NSPopupButton menu loaded from nib
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Re: Memory leak with NSPopupButton menu loaded from nib


  • Subject: Re: Memory leak with NSPopupButton menu loaded from nib
  • From: Chuck Fleming <email@hidden>
  • Date: Sun, 30 May 2004 12:52:33 -0700

Hi,

This bug appears to have been fixed (in NSMenuItem), but I don't believe the fix made it into 10.3.4. You might consider a temporary workaround involving carefully checking the retain count on the leaking NSMenu and reducing it as necessary as was suggested by Jesse.

Chuck



On May 29, 2004, at 6:01 PM, Chuck Fleming wrote:

Hi,

So far I've had no luck reproducing this using the steps you've described below. I'm running on post-Panther code, so this could be a bug that has been fixed. Could you send a simple project where you see the leaks?

Thanks,
Chuck


On May 29, 2004, at 4:55 PM, Peter Lennie wrote:

I did what you did and got the result you did. Puzzled, I looked at the default format of the nib. It was pre 10.2. Change the nib file format to 10.2 and later, and the menu leaks I described appear immediately.

PL

At 11:39 AM -0700 5/29/04, Chuck Fleming wrote:
Hi,

I'm not able to reproduce this at least with the stock Xcode document-based application template and populating the MyDocument.nib with several NSPopupButtons. Running leaks with MallocStackLogging turned on doesn't indicate any NSMenus leaking after opening and closing documents.

Chuck


On May 29, 2004, at 9:08 AM, Peter Lennie wrote:

I have run into what appears to be a major leak problem with NSMenus attached to NSPopupButtons instantiated from nibs.

My app uses several nib files each of which has a window containing a variable numbers of views (including several instances of NSPopupButton). Each nib is managed by a window controller and its window and views are loaded through a call to initWithWindowNibName. The window is released when the window controller is closed. ObjectAlloc shows that the window and all its associated objects are released *except* the NSMenus (and objects that belong to them) that were attached to the popupbuttons. My code does nothing that I know of to retain any of these.

This behavior is completely consistent in all nib files that I load and dispose of this way. I'm using the 10.2 and later nib format, and compiling and running under 10.3.4, though as far as I can tell the problem affects all versions of Panther.

Is this a known bug, and does anyone know a way around it? Or is there something special one is supposed to do to make sure menus are released? Help appreciated.
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References: 
 >Memory leak with NSPopupButton menu loaded from nib (From: Peter Lennie <email@hidden>)
 >Re: Memory leak with NSPopupButton menu loaded from nib (From: Chuck Fleming <email@hidden>)
 >Re: Memory leak with NSPopupButton menu loaded from nib (From: Peter Lennie <email@hidden>)
 >Re: Memory leak with NSPopupButton menu loaded from nib (From: Chuck Fleming <email@hidden>)

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