I'm not sure it is a bug, so I'm asking here before reporting it as such.
this code:
procedure TForm1.Timer1Timer(Sender: TObject);
begin
timer1.enabled:=false;
while not Application.Terminated do
begin
image1.Picture.loadfromfile('test.png');
Label1.Tag:=Label1.Tag+1;
Label1.Caption:=IntToStr(Label1.Tag);
Application.ProcessMessages;
end;
end;
works perfectly under windows, but under linux/gtk2 the application is
using more and more memory (slowly but constantly, until the OOM kills
it) both for the application itself and for X.
Of course heaptrc reports no leak, using cmem doesn't help.
Before you ask, the application is not an interactive one, and the above
construct is to avoid using a thread (which makes memory usage even
worse), the real loop is like "read some data from the network, display
it, application.processmessages". If I limit myself to update labels,
memory usage stays constant, as soon as I try to use images (like the
above example) memory usage starts growing.
This happened both with an old svn revision (22350) with fpc 2.2.4 and
with a version updated yesterday (27607) with fpc 2.4.0.
Bye
--
Luca Olivetti
Wetron Automatización S.A. http://www.wetron.es/
Tel. +34 93 5883004 (Ext.133) Fax +34 93 5883007
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