[PyQt] SEGV on exit but only with ALT-F4
barry at barrys-emacs.org
Sun Mar 20 16:20:30 GMT 2016
I have been reading about the issue of atexit handlers deleting Qt objects in
a random order, causing SEGV.
I use this pattern to start up my application:
def main( argv ):
app = wb_git_app.WbGit_App( argv )
rc = app.exec_()
# force clean up of objects to avoid segv on exit
if __name__ == '__main__':
sys.exit( main( sys.argv ) )
All the PyQt work in in WbGit_App object and its children.
All is well if I exit from an menu action or clicking the [X] on the window
decoration to exit. But type Alt-F4 and I get a SEGV.
I have two questions:
1) How can I track down the orphaned Qt objects to try and delete them
in predicable order?
2) What is different about Alt-F4 method of quitting? (Maybe I can figure
why it crashes from that difference)
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