1 files changed, 0 insertions, 174 deletions
diff --git a/java/src/RWMutex.java b/java/src/RWMutex.java
deleted file mode 100644
index 1161d9a8618..00000000000
--- a/java/src/RWMutex.java
+++ /dev/null
@@ -1,174 +0,0 @@
-/*************************************************
- *
- * = PACKAGE
- *    JACE.Concurrency
- *
- * = FILENAME
- *    RWMutex.java
- *
- *@author Ross Dargahi (rossd@krinfo.com), Prashant Jain, and Irfan Pyarali
- *
- *************************************************/
-
-package JACE.Concurrency;
-
-import JACE.OS.*;
-
-/*******************************************************************************
-* <HR>
-* <B> Description </B>
-* <BR>
-* This class increments a read/write lock. A read/write lock allows multiple
-* readers or a single writer to access the guarded element.
-* This implementation is based on the C++ version of ACE.
-* </PRE><P><HR>
-* <B> Notes </B>
-* <UL>
-* <LI> This class does not support recursive semantics
-* </UL>
-*******************************************************************************/
-public class RWMutex
-{
-  /**
-   * Acquires the write lock
-   * @exception InterruptedException Lock acquisition interrupted
-   **/
-  public void acquire()
-    throws InterruptedException
-  {
-    acquireWrite();
-  }
-
-  /**
-   * Acquires the read lock
-   * @exception InterruptedException Lock acquisition interrupted
-   **/
-  public void acquireRead()
-    throws InterruptedException
-  {
-    // make sure we start with no exception
-    InterruptedException exception_ = null;
-    
-    // grab lock
-    lock_.acquire ();
-    
-    // Give preference to writers who are waiting.
-    while (referenceCount_ < 0 || numberOfWaitingWriters_ > 0)
-      {
-	numberOfWaitingReaders_++;
-	try 
-	  {
-	    waitingReaders_.Wait ();
-	  }
-	catch (InterruptedException exception)
-	  {
-	    // cache exception
-	    exception_ = exception;
-	  }
-	numberOfWaitingReaders_--;
-      }
-    
-    if (exception_ == null)
-      // No errors
-      referenceCount_++;
-
-    // make sure this is released in all cases
-    lock_.release ();
-
-    if (exception_ != null)
-      // error: propogate
-      throw exception_;
-  }
-  
-  /**
-   * Acquires the write lock
-   * @exception InterruptedException Lock acquisition interrupted
-   **/
-  public void acquireWrite()
-    throws InterruptedException
-  {
-    // make sure we start with no exception
-    InterruptedException exception_ = null;
-    
-    // grab lock
-    lock_.acquire ();
-    
-    // Give preference to writers who are waiting.
-    while (referenceCount_ != 0)
-      {
-	numberOfWaitingWriters_++;
-	try 
-	  {
-	    waitingWriters_.Wait ();
-	  }
-	catch (InterruptedException exception)
-	  {
-	    // cache exception
-	    exception_ = exception;
-	  }
-	numberOfWaitingWriters_--;
-      }
-    
-    if (exception_ == null)
-      // No errors
-      referenceCount_ = -1;
-
-    // make sure this is released in all cases
-    lock_.release ();
-
-    if (exception_ != null)
-      // error: propogate
-      throw exception_;
-  }
-
-  /**
-   * Release held lock
-   * @exception InterruptedException Lock acquisition interrupted
-   **/
-  public void release()
-    throws InterruptedException
-  {
-    lock_.acquire ();
-    
-    // Releasing a reader.
-    if (referenceCount_ > 0) 
-      referenceCount_--;
-    else 
-      // Releasing a writer.
-      if (referenceCount_ == -1) 
-	referenceCount_ = 0;
-    
-    // Give preference to writers over readers...
-    if (numberOfWaitingWriters_ > 0)
-      {
-	waitingWriters_.signal ();
-      }
-    else if (numberOfWaitingReaders_ > 0)
-      {
-	waitingReaders_.broadcast ();
-      }
-	
-    
-    lock_.release ();
-  }
-
-  private Mutex lock_ = new Mutex (); 
-  // Serialize access to internal state.
- 
-  private Condition waitingReaders_ = new Condition (lock_);
-  // Reader threads waiting to acquire the lock.
- 
-  private int numberOfWaitingReaders_;
-  // Number of waiting readers.
- 
-  private Condition waitingWriters_ = new Condition (lock_);
-  // Writer threads waiting to acquire the lock.
- 
-  private int numberOfWaitingWriters_ = 0;
-  // Number of waiting writers.
- 
-  private int referenceCount_ = 0;
-  // Value is -1 if writer has the lock, else this keeps track of the
-  // number of readers holding the lock.
-}
-