[Lazarus] OpenDialog memory leak in GTK2 ?

[Mattias Gaertner]

On Tue, 04 Mar 2008 22:45:38 +0000
Malcolm Poole <malcolm at lingua-z.co.uk> wrote:

> Hi,
> 
> There seems to be a memory leak in the implementation of dialogs in
> GTK2.
> 
> I compiled a form containing only a button and a TOpenDialog using 
> yesterday's Lazarus snapshot and the heaptrc unit.
> 
> If the dialog is opened and closed by using either of the buttons,
> when the application is terminated I get the output given below.
> 
> It seems that the TFPList variable named FilterList which is created
> in line 113 of gtkfiledialogutils.inc is not being freed but I cannot
> work out where it should be freed.

Please create a bug report for this.


Mattias


> 
> Hope someone can help.
> 
> Regards, Malcolm
> 
> /tmp/project1
> Heap dump by heaptrc unit
> 1930 memory blocks allocated : 102861/108992
> 1929 memory blocks freed     : 102845/108976
> 1 unfreed memory blocks : 16
> True heap size : 884736
> True free heap : 884656
> Should be : 884664
> Call trace for block $B7FBB2A8 size 16
>   $08067052
>   $081DFED1  EXTRACTFILTERLIST,  line 113 of 
> /home/malcolm/Desktop/lazarus/lcl/interfaces/gtk/gtkfiledialogutils.inc
>   $08249661  TGTK2WSOPENDIALOG__CREATEOPENDIALOGFILTER,  line 233 of 
> gtk2wsdialogs.pp
>   $082499D5  TGTK2WSOPENDIALOG__CREATEHANDLE,  line 336 of
> gtk2wsdialogs.pp $081A1E86  TCOMMONDIALOG__EXECUTE,  line 36
> of ./include/commondialog.inc $081A2406  TFILEDIALOG__EXECUTE,  line
> 62 of ./include/filedialog.inc $08084EA2  TFORM1__BUTTON1CLICK,  line
> 34 of unit1.pas $0813D8C9  TCONTROL__CLICK,  line 2022
> of ./include/control.inc
> 
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