[Poppler-bugs] [Bug 59927] make qt4 frontend thread-safe

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59927

--- Comment #9 from Thomas Freitag <Thomas.Freitag at alfa.de> ---
Thanks a lot for Your test case, Adam. Two reasóns for thanking
a) I learned a little bit more about qt programming. It took me some time to
figure out how to compile Your test case, but it wasn't wasted time. I
encountered how easy it is to setup threads with qt, perhaps this helps me
anywhere else sometimes.
b) Your test case shows me really fast that I missed to fix the FontInfo stuff:
it uses the page resource dict which is manipulated during rendering of this
page and can't be used by FontInfo during the page is rendered. (BTW, same also
occurs when creating / removing annotations, I haven't seen that, but rarely it
causes crashes, too)

I was already able to solve these problems, Your test case runs now since 30
minutes without any problems. But before I upload the changes I want change the
sources a little bit more according to Albert hints, and because I've now some
other dates that have to be wait at least until tomorrow.

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