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Pure Java implementation of libzmq

There is a newer version: 0.6.0

/*
    Copyright (c) 2007-2014 Contributors as noted in the AUTHORS file

    This file is part of 0MQ.

    0MQ is free software; you can redistribute it and/or modify it under
    the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    0MQ is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see .
*/

package zmq;

public class Clock
{
    //  TSC timestamp of when last time measurement was made.
    // private long last_tsc;

    //  Physical time corresponding to the TSC above (in milliseconds).
    // private long last_time;

    private Clock()
    {
    }

    //  High precision timestamp.
    public static long nowUS()
    {
        return System.nanoTime() * 1000L;
    }

    //  Low precision timestamp. In tight loops generating it can be
    //  10 to 100 times faster than the high precision timestamp.
    public static long nowMS()
    {
        return System.currentTimeMillis();
    }

    //  CPU's timestamp counter. Returns 0 if it's not available.
    public static long rdtsc()
    {
        return 0;
    }
}