On Sun, 4 Nov 2018, Tage Johansson wrote: > How ever, I still don't understand how to use the "poll" function. What > arguments should I give and what does it actually? See here: https://www.techrepublic.com/article/using-the-select-and-poll-methods/ You may disregard the note about Linux 2.4 support. This is not relevant these days. Nicolas