package EPON;public class Server implements Runnable {        private int ONUNUMBER;    private int CYCLENUMBER;    private int counter = 0;    public static double systime = 0;    private double[] idle_time;    private double tmp;    public Server(int ONUNUMBER, int CYCLENUMBER){        this.ONUNUMBER = ONUNUMBER;        this.CYCLENUMBER = CYCLENUMBER;        idle_time = new double[ONUNUMBER];    }    public void run(){        while(counter < CYCLENUMBER){            for(int i = 0; i < ONUNUMBER; i++) {                try {                    Simulation.server_lock.acquire();                    if(counter!=0) Simulation.set_grant((i-1+ONUNUMBER)%ONUNUMBER, tmp);                    systime = Simulation.grant[i];                    tmp = calculate_next_grant(Simulation.report, i);                    Simulation.customer_lock[i].release();                }catch (InterruptedException e){                    e.printStackTrace();                }            }            counter++;        }        for(int i = 0; i < ONUNUMBER; i++) {            Simulation.set_grant(i, -1);            Simulation.customer_lock[i].release();        }    }    public double calculate_next_grant(int [] report, int i){        double grant;        double factor = Simulation.PACKETBIT/Simulation.RATE;        if((systime + report[i]*factor + Simulation.RTT)>(Simulation.grant[(i-1+ONUNUMBER)%ONUNUMBER]+report[(i-1+ONUNUMBER)%ONUNUMBER]*factor+Simulation.GUARDTIME)){            grant = systime + report[i]*factor + Simulation.RTT;            //idle_time[i] += (systime + report[i]*factor + Simulation.RTT - (Simulation.grant[(i-1+ONUNUMBER)%ONUNUMBER]+report[(i-1+ONUNUMBER)%ONUNUMBER]*factor+Simulation.guard_time));        }        else {            grant = Simulation.grant[(i-1+ONUNUMBER)%ONUNUMBER]+report[(i-1+ONUNUMBER)%ONUNUMBER]*factor+Simulation.GUARDTIME;        }        return grant;    }}