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Re: String Property Leaks

To: REALbasic Plugins <realbasic-plugins at lists dot realsoftware dot com>
Subject: Re: String Property Leaks
From: Björn Eiríksson <bjorn at einhugur dot com>
Date: Thu, 15 Jun 2006 22:31:40 +0000
Delivered-to: listarchive at realsoftware dot com
Delivered-to: realbasic-plugins at lists dot realsoftware dot com
References: <DDC8D5BC-9B4E-4844-80D3-E85EBD063A5D at einhugur dot com> <F2B312ED-BA80-4200-9C70-251AF1C6F621 at realsoftware dot com>
Ohhh and I forgot, I would not even have suspected it if adding XX to one of the font properties in the property browser had not added 2 bytes to the leak.

On 15.6.2006, at 22:27, Jonathan Johnson wrote:


On Jun 15, 2006, at 5:24 PM, Björn Eiríksson wrote:

Hello

I found that string properties with REALstandardGetter and REALstandardSetter, defined like bellow will leak:

{"Font", "StartupLinuxFont", "String", REALpropInvalidate,REALstandardGetter,REALstandardSetter, FieldOffset(TableControlData, StartupLinuxFontName)},

In the Dispose Event of the control then the following is called:

REALUnlockString(me->StartupLinuxFontName);

And the following is called in the Init method of the control:

me->StartupLinuxFontName = REALBuildString("Geneva",6);


The property is not connected to anything else nor accessed or touched in any other place.

Now why does it leak ? Is it a bug in REALbasic handling of REALstandardSetter for REALstring ?

I doubt it's the latter -- that code hasn't changed in an extremely long time (before I even started working here). Is your destructor being called?

-Jon


--
Jonathan Johnson
jonj at realsoftware dot com
REAL Software, Inc.


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