jdk/test/sun/jvmstat/testlibrary/Sleeper.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
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0:fd16c54261b3 2:90ce3da70b43
       
     1 /*
       
     2  * Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved.
       
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       
     4  *
       
     5  * This code is free software; you can redistribute it and/or modify it
       
     6  * under the terms of the GNU General Public License version 2 only, as
       
     7  * published by the Free Software Foundation.
       
     8  *
       
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
       
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
       
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
       
    12  * version 2 for more details (a copy is included in the LICENSE file that
       
    13  * accompanied this code).
       
    14  *
       
    15  * You should have received a copy of the GNU General Public License version
       
    16  * 2 along with this work; if not, write to the Free Software Foundation,
       
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
       
    18  *
       
    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
       
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
       
    21  * have any questions.
       
    22  */
       
    23 
       
    24 /*
       
    25  *
       
    26  */
       
    27 public class Sleeper {
       
    28 
       
    29    private static final String USAGE = "Sleeper [ms]";
       
    30 
       
    31    public static void main(String argv[]) {
       
    32 
       
    33       long sleep = Long.MAX_VALUE;   // sleep indefinately if no arg is given
       
    34 
       
    35       // if argv[0] is present, use it to set the sleep time. ignore
       
    36       // all other arguments - some tests pass additional arguments to
       
    37       // differentiate or associate multiple sleeper processes.
       
    38       if (argv.length >= 1) {
       
    39         try {
       
    40           sleep = Long.parseLong(argv[0]);
       
    41         }
       
    42         catch (NumberFormatException e) {
       
    43           System.err.println(USAGE);
       
    44           System.exit(1);
       
    45         }
       
    46       }
       
    47 
       
    48       try { Thread.sleep(sleep); } catch (InterruptedException e) {};
       
    49    }
       
    50 }