#!/bin/bash

run_locked_simple_lock() {

        while ! ./increment_number_simple_lock ;do
                :
        done
}

run_locked_flock() {

        while ! ./increment_number_flock ;do
                :
        done
}

# --- start test ---

echo

# write sequentially for testing with simple_lock
echo 0 >data.txt
rm -f ./bla-lock
for ((i=1;i<=100;i++));do
        ./increment_number_simple_lock
done
echo "Data Value after 100 sequential executions with simple lock: $(cat data.txt)"

# write sequentially for testing with flock
echo 0 > data.txt
for ((i=1;i<=100;i++));do
        ./increment_number_flock
done
echo "Data Value after 100 sequential executions with flock:       $(cat data.txt)"


echo
# write parallel for testing with simple_lock
echo 0 > data.txt
rm -f ./bla-lock
{
for ((i=1;i<=100;i++));do
        run_locked_simple_lock &
done
} >/dev/null 2>&1
wait
echo "Data Value after 100 parallel executions with simple lock:   $(printf "%3d" $(cat data.txt))"

# write parallel for testing with simple_lock
echo 0 > data.txt
{
for ((i=1;i<=100;i++));do
        run_locked_flock &
done
} >/dev/null 2>&1
wait
echo "Data Value after 100 parallel executions with flock          $(cat data.txt)"
echo