001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: * The Original Software is NetBeans. The Initial Developer of the Original
026: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
027: * Microsystems, Inc. All Rights Reserved.
028: *
029: * If you wish your version of this file to be governed by only the CDDL
030: * or only the GPL Version 2, indicate your decision by adding
031: * "[Contributor] elects to include this software in this distribution
032: * under the [CDDL or GPL Version 2] license." If you do not indicate a
033: * single choice of license, a recipient has the option to distribute
034: * your version of this file under either the CDDL, the GPL Version 2 or
035: * to extend the choice of license to its licensees as provided above.
036: * However, if you add GPL Version 2 code and therefore, elected the GPL
037: * Version 2 license, then the option applies only if the new code is
038: * made subject to such option by the copyright holder.
039: */
040:
041: package simple.cpu;
042:
043: public class WaitingTest {
044: //~ Static fields/initializers -----------------------------------------------------------------------------------------------
045:
046: public static Object mutex = new Object();
047:
048: //~ Instance fields ----------------------------------------------------------------------------------------------------------
049:
050: long run = 0;
051: long sleep = 0;
052: long wait = 0;
053:
054: //~ Constructors -------------------------------------------------------------------------------------------------------------
055:
056: public WaitingTest() {
057: }
058:
059: //~ Methods ------------------------------------------------------------------------------------------------------------------
060:
061: public static void main(String[] args) {
062: System.out.println("Start app: " + System.currentTimeMillis());
063:
064: WaitingTest test = new WaitingTest();
065:
066: for (int i = 0; i < 2; i++) {
067: test.method1000();
068: System.out.println("sleep: " + test.sleep);
069: System.out.println("wait: " + test.wait);
070: System.out.println("run: " + test.run);
071: }
072:
073: System.out.println("Finish app: " + System.currentTimeMillis());
074: }
075:
076: public void method1000() {
077: sleep = 0;
078: run = 0;
079: wait = 0;
080:
081: long time = System.currentTimeMillis();
082:
083: while ((System.currentTimeMillis() - time) < 1000) {
084: ;
085: }
086:
087: run += (System.currentTimeMillis() - time);
088: time = System.currentTimeMillis();
089:
090: synchronized (mutex) {
091: try {
092: mutex.wait(1000);
093: } catch (InterruptedException ex) {
094: ex.printStackTrace();
095: }
096: }
097:
098: wait += (System.currentTimeMillis() - time);
099: time = System.currentTimeMillis();
100:
101: while ((System.currentTimeMillis() - time) < 1000) {
102: ;
103: }
104:
105: run += (System.currentTimeMillis() - time);
106: time = System.currentTimeMillis();
107:
108: try {
109: Thread.sleep(1000);
110: } catch (InterruptedException ex) {
111: }
112:
113: sleep += (System.currentTimeMillis() - time);
114: }
115: }
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