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

[bugzilla-daemon at freedesktop.org]

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

Thomas Freitag <Thomas.Freitag at alfa.de> changed:

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--- Comment #13 from Thomas Freitag <Thomas.Freitag at alfa.de> ---
Created attachment 73834
  --> https://bugs.freedesktop.org/attachment.cgi?id=73834&action=edit
move lock/unlock pairs in Annot to correct place

Sorry if wasting anybodys time: I made some additional tests with Adam's
test-case and encountered, that there are problems when drawing annots during
rendering pages: the draw routines doesn't use only local variables but
modifies also instance variables (appearBuf), and therefore definitely need to
be locked!

Here the patch which does it correctly!

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