Is a signal sent with kill to a parent thread guaranteed to be processed before the next statement?

Posted by Jonathan M Davis on Stack Overflow See other posts from Stack Overflow or by Jonathan M Davis
Published on 2010-04-24T02:07:16Z Indexed on 2010/04/24 2:13 UTC
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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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