1 files changed, 156 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/rmi/server/ConnectionRunnerPool.java b/gcc-4.4.3/libjava/classpath/gnu/java/rmi/server/ConnectionRunnerPool.java
new file mode 100644
index 000000000..9f2b3706e
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+++ b/gcc-4.4.3/libjava/classpath/gnu/java/rmi/server/ConnectionRunnerPool.java
@@ -0,0 +1,156 @@
+/* gnu.java.rmi.server.ConnectionRunnerPool
+   Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+ 
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.java.rmi.server;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+//Should I generalize this class?
+
+class ConnectionRunnerPool
+{
+  
+  public static 
+    class ConnectionRunner extends Thread{
+      private UnicastConnection conn;
+      private volatile boolean exiting = false;
+      
+      public ConnectionRunner(ThreadGroup group, String id){
+        super(group, id);
+      }
+      
+      public synchronized void run(){
+        while(!exiting){
+	  if(conn == null)
+	    try{
+	      wait();
+	    }catch(InterruptedException e){
+	      continue;
+	    }
+	  else{
+	    conn.run();
+	    conn = null;
+	    synchronized(ConnectionRunnerPool.class){
+	      freelist.add(this);
+	      if(freelist.size() == 1)
+		ConnectionRunnerPool.class.notifyAll();
+	    }
+	  }    
+        }
+      }
+      
+      public synchronized void dispatch(UnicastConnection conn){
+        this.conn = conn;
+        notify();
+      }
+      
+      void exit(){
+        exiting = true;
+        if(conn != null)
+	  try{
+	    join(500);
+	  }catch(InterruptedException e){}
+        interrupt();
+      }
+      
+    }
+  
+  // Should this value equal to number of CPU?
+  private static int size = 5;
+  private static int max_size = 10;
+  
+  // Package-private to avoid a trampoline.
+  static ArrayList freelist;
+  
+  private static ThreadGroup group = new ThreadGroup("pool");
+  
+  static {
+    ConnectionRunner[] pools = new ConnectionRunner[size];
+    for(int i = 0; i < pools.length; i++){
+      pools[i] = new ConnectionRunner(group, Integer.toString(i));
+      pools[i].setContextClassLoader(Thread.currentThread().getContextClassLoader());
+      pools[i].start();
+    }
+    freelist = new ArrayList(Arrays.asList(pools));
+  }
+  
+  public static void setSize(int size_){
+    size = size_;
+  }
+  
+  public static void setMaxSize(int size){
+    max_size = size;
+  }
+  
+  private static synchronized ConnectionRunner getConnectionRunner()
+  {
+    if(freelist.size() == 0){
+      if(size < max_size){
+	++size;
+	ConnectionRunner a = new ConnectionRunner(group, Integer.toString(size));
+	a.start();
+	freelist.add(a);
+      }else
+	while(freelist.size() == 0)
+	  try{
+	    ConnectionRunnerPool.class.wait();
+	  }catch(InterruptedException e){}
+    }
+    
+    // always let the first in pool most busy or other scheduling plan??
+    ConnectionRunner a = (ConnectionRunner)freelist.get(0);
+    freelist.remove(a);
+    return a;
+  }
+  
+  public static void dispatchConnection(UnicastConnection conn)
+  {
+    ConnectionRunner r = getConnectionRunner();
+    r.dispatch(conn);
+  }
+  
+  public static void exit()
+  {
+    Thread[] list = new Thread[group.activeCount()];
+    group.enumerate(list);
+    for(int i = 0; i < list.length; i++)
+      ((ConnectionRunner)list[i]).exit();
+  }
+  
+}