Linux C catching kill signal for graceful termination

Question

I have a process using sockets, database connections and the likes. It is basically a server process relaying between sensor data and a web interface, and as such it is impo

Answer 1

You install signal handlers to catch signals -- however in 99% of cases you just want to exit and let the Linux OS take care of the cleanup -- it will happily close all files, sockets, free memory and shutdown threads.

So unless there is anything specifically you want to do, like sending a message on the sockets, then you should just exit from the process and not try to catch the signal.