Joachim Wieland <joe@mcknight.de> writes:
> As there were so many boolean SomethingCancelPending variables I changed them
> to be bitmasks and merged all of them into a single variable.
This seems like a truly horrid idea, because those variables are set by
signal handlers. A bitmask cannot be manipulated atomically, so you
have almost certainly introduced race-condition bugs.
regards, tom lane