// Runs a core scenario's network in Java FILIUS (ScenarioNetwork) and records
// what DHCP really does: every frame each network card saw and each host's
// address configuration at the end.
//
//   DhcpRun <scenario.json> <milliseconds> <out.json>
//
// The scenario's steps are ignored: the network runs, in real time, for the
// given milliseconds. Threads make the times vary from run to run; the order
// of one client's messages does not.

public class DhcpRun {

    public static void main(String[] args) throws Exception {
        ScenarioNetwork network = ScenarioNetwork.read(args[0]);
        network.start();
        Thread.sleep(Long.parseLong(args[1]));
        ScenarioNetwork.Json out = new ScenarioNetwork.Json();
        out.open('{');
        network.writeFrames(out);
        network.writeDevices(out);
        out.close('}');
        network.stop();
        ScenarioNetwork.write(args[2], out);
        System.exit(0);
    }
}