iotimeout

# timelimit watches standard out for a delay longer than the timeout w/o any output.
# Example:
#   make clean test | timeout 300
timelimit=$1
touch tmp.out  # Set initial time in case never get any output
(
  while true
  do 
    if [ ! -f tmp.out ]; then break; fi
    lastline=$(date +%s -r tmp.out)
    currtime=$(date +%s)
    (( diff = currtime - lastline ))
    if [ $diff -gt 10 ]
    then
        echo "More than $diff seconds w/o any response."
    fi
    if [ $diff -gt $timelimit ]
    then
        echo "Exceeded maximim timout of ${timelimit} seconds w/o response."
	kill -9 0
    fi
    sleep 10
  done
) &
while read -r line
do
    echo "$line"
    touch tmp.out
done
rm tmp.out
wait
echo "iotimeout finished."