01: /*
02: * $RCSfile: J3DTimer.java,v $
03: *
04: * Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * Redistribution and use in source and binary forms, with or without
07: * modification, are permitted provided that the following conditions
08: * are met:
09: *
10: * - Redistribution of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: *
13: * - Redistribution in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in
15: * the documentation and/or other materials provided with the
16: * distribution.
17: *
18: * Neither the name of Sun Microsystems, Inc. or the names of
19: * contributors may be used to endorse or promote products derived
20: * from this software without specific prior written permission.
21: *
22: * This software is provided "AS IS," without a warranty of any
23: * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
24: * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
25: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
26: * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
27: * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
28: * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
29: * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
30: * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
31: * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
32: * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
33: * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
34: * POSSIBILITY OF SUCH DAMAGES.
35: *
36: * You acknowledge that this software is not designed, licensed or
37: * intended for use in the design, construction, operation or
38: * maintenance of any nuclear facility.
39: *
40: * $Revision: 1.5 $
41: * $Date: 2007/02/09 17:20:43 $
42: * $State: Exp $
43: */
44:
45: package com.sun.j3d.utils.timer;
46:
47: /**
48: * A High Resolution interval timer. The timer resolution is
49: * operating system dependent and can be queried using
50: * getTimerResolution().
51: *
52: * These methods are not reentrant and should not
53: * be called concurrently from multiple threads.
54: *
55: * @deprecated Use java.lang.System.nanoTime() instead.
56: */
57: public class J3DTimer {
58:
59: // Since we can't get the resolution from the JDK, we will hard-code it
60: // at 1000 (microsecond resolution).
61: private static final long resolution = 1000L;
62:
63: /**
64: * Private constructor because users should
65: * not construct instances of this class
66: */
67: private J3DTimer() {
68: }
69:
70: /**
71: * Get the timer value, in nanoseconds.
72: * The initial value of the timer is OS dependent.
73: *
74: * @return The current timer value in nanoseconds.
75: */
76: public static long getValue() {
77: return System.nanoTime();
78: }
79:
80: /**
81: * Get the nanosecond resolution of the timer
82: *
83: * @return The timer resolution in nanoseconds.
84: */
85: public static long getResolution() {
86: return resolution;
87: }
88: }
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