Is a signal sent with kill to a parent thread guaranteed to be processed before the next statement?
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by Jonathan M Davis
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Published on 2010-04-24T02:07:16Z
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2010/04/24
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Okay, so if I'm running in a child thread on linux (using pthreads if that matters), and I run the following command
kill(getpid(), someSignal);
it will send the given signal to the parent of the current thread.
My question: Is it guaranteed that the parent will then immediately get the CPU and process the signal (killing the app if it's a SIGKILL or doing whatever else if it's some other signal) before the statement following kill() is run? Or is it possible - even probable - that whatever command follows kill() will run before the signal is processed by the parent thread?
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