Imagine I have a program with a main function that creates several threads. In each thread I redirect the CTRL + C interruption (SIGINT) to a functionA via signal(SIGINT, functionA) and in the main process I redirect the same interruption to a functionB (signal(SIGINT, functionB).
When the program is running and the interruption SIGINT is sent, what will the program do?
It will execute functionA in all threads then functionB in the main process?