#!/bin/bash

trap "cleanup" SIGUSR1
export TOP_PID=$$

echo $TOP_PID

function cleanup() {
    rm serwerfifo
    kill -9 $TOP_PID
}

function respond() {
    read -r path number <<< "$1"
    path="${path}/klientfifo"
    number=$number**$number

    echo $number > $path
}

trap "" SIGHUP
trap "" SIGTERM

mkfifo serwerfifo

while true
do
    input=$(< serwerfifo)

    respond $input

    sleep 1
done