Question

Will a thread stop if I send it SIGTSTP signal? Or in other words will it behave like process on SIGTSTP and SIGCONT?

Thanks in advance.

Answer 1

From `man 3p pthread_kill:

Note that pthread_kill() only causes the signal to be handled in the context of the given thread; the signal action (termination or stopping) affects the process as a
whole.

So I’d say that you will stop the whole process, not just the thread.