1. /*

  2.  * @(#)Lock.java	1.30 03/01/23

  3.  *

  4.  * Copyright 2003 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

  8. package com.sun.corba.se.internal.orbutil;

  9. 

  10. //

  11. // Traditional mutex, unbound to any instance or class.

  12. //							KGH April 95

  13. 

  14. final public class Lock {

  15. 

  16.     public synchronized void lock()

  17.     {

  18. 	while (busy) {

  19. 	    try {

  20. 	        wait();

  21. 	    } catch (java.lang.InterruptedException ex) {

  22. 		// Eat it.

  23. 	    }

  24. 	}

  25. 	busy = true;

  26.     }

  27. 

  28.     public synchronized void unlock()

  29.     {

  30. 	if (!busy) {

  31. 	    throw new Error("freeing non-busy lock");

  32. 	}

  33. 	busy = false;

  34. 	notifyAll();

  35.     }

  36. 

  37.     boolean busy = false;

  38. 

  39. }