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//
// Nenya library - tools for developing networked games
// Copyright (C) 2002-2012 Three Rings Design, Inc., All Rights Reserved
// https://github.com/threerings/nenya
//
// This library 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 2.1 of the License, or
// (at your option) any later version.
//
// This library 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 library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package com.threerings.media.timer;
/**
* Implements the {@link MediaTimer} interface using {@link System#currentTimeMillis} to obtain
* timing information.
*
* Note: {@link System#currentTimeMillis} is notoriously inaccurate on different
* platforms. See
* bug report 4486109 for more information.
*
*
Also note: clock drift on Windows XP is especially pronounced and is exacerbated by
* the fact that WinXP periodically resyncs the system clock with the hardware clock, causing
* discontinuous jumps in the progression of time (usually backwards in time).
*/
public class MillisTimer implements MediaTimer
{
// documentation inherited from interface
public void reset ()
{
_resetStamp = System.currentTimeMillis();
}
// documentation inherited from interface
public long getElapsedMillis ()
{
return System.currentTimeMillis() - _resetStamp;
}
// documentation inherited from interface
public long getElapsedMicros ()
{
return getElapsedMillis() * 10;
}
/** The time at which this timer was last reset. */
protected long _resetStamp = System.currentTimeMillis();
}