> I have yet to see a real-world device that could actually manage to count zero > seconds ..
I'm not aware of any system call like sleep(0) that causes an error or
locks forever. I just sleeps for 0 seconds (which for us means, that it
doesn't sleep at all).
On the other hand I know a lot of configuration options in different
programs where positive values means a limit (e.g. only 20 concurrent
connections) whereas negative values (usually -1) waive all limits.
