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bug with displayPopUp with MT [message #22755]

Tue, 11 August 2009 16:32

cocob
Messages: 156
Registered: January 2008

Experienced Member

I have some problems with my multithreaded app.

It seems to be related with tooltips when somes Ctrl are not totally initialized by the other thread.

For the moment i have solved my problems (crashs) with this fix.

LabelBase.cpp line 449:

void DisplayPopup::Paint(Draw& w)
{
	Rect r = GetSize();
	w.DrawRect(r, SColorPaper);
	if(display) display->PaintBackground(w, r, value, ink, paper, style);
	r.left += margin;
	if(display) display->Paint(w, r, value, ink, paper, style);
}

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Re: bug with displayPopUp with MT [message #22758 is a reply to message #22755]

Tue, 11 August 2009 19:38

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

cocob wrote on Tue, 11 August 2009 10:32

void DisplayPopup::Paint(Draw& w)
{
	Rect r = GetSize();
	w.DrawRect(r, SColorPaper);
	if(display) display->PaintBackground(w, r, value, ink, paper, style);
	r.left += margin;
	if(display) display->Paint(w, r, value, ink, paper, style);
}

Do you conform to synchronization rules?

Any Ctrl related operation needs GuiLock, are you aware about that?

Mirek

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Re: bug with displayPopUp with MT [message #22762 is a reply to message #22755]

Wed, 12 August 2009 09:13

cocob
Messages: 156
Registered: January 2008

Experienced Member

Yes i use guilock when it is necessary.

cocob

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Re: bug with displayPopUp with MT [message #22765 is a reply to message #22755]

Wed, 12 August 2009 10:13

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Never mind, problem confirmed, working on it.

Mirek

[Updated on: Wed, 12 August 2009 10:54]

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Re: bug with displayPopUp with MT [message #22777 is a reply to message #22765]

Thu, 13 August 2009 21:00

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Well, this one was hard. It took me 5 hour to figure out what is going on and another 10 hours to fix it.

The basic problem is that MT in Win32 is really stupid and we have to do a lot of uninntuitive workaround to get it working. And in these workarounds, we had bugs...

Anyway, all should be fine now. Please check.

Given the complexity of the issue, I expect to fix more bugs there in the future. But for now, reported issue is solved.

Mirek

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