This is a convenience function that provides a simple way to call
startServer, service, and
stopServer in the correct sequence. It does not return unless
interrupted or an error occurs.
A string that is a valid IPv4 address that is owned by this
server, or "0.0.0.0" to listen on all IP addresses.
port
A number or integer that indicates the server port that should be
listened on. Note that on most Unix-like systems including Linux and Mac OS
X, port numbers smaller than 1025 require root privileges.
app
A collection of functions that define your application. See
startServer.
interruptIntervalMs
How often to check for interrupt. The default
should be appropriate for most situations.
Details
If you have multiple hosts and/or ports to listen on, call the individual
functions instead of runServer.
providing 
.