1 files changed, 281 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/lang/management/MemoryMXBeanImpl.java b/gcc-4.4.3/libjava/classpath/gnu/java/lang/management/MemoryMXBeanImpl.java
new file mode 100644
index 000000000..1e6c63afc
--- /dev/null
+++ b/gcc-4.4.3/libjava/classpath/gnu/java/lang/management/MemoryMXBeanImpl.java
@@ -0,0 +1,281 @@
+/* MemoryMXBeanImpl.java - Implementation of a memory bean
+   Copyright (C) 2006 Free Software Foundation
+
+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.lang.management;
+
+import gnu.javax.management.ListenerData;
+
+import java.lang.management.MemoryMXBean;
+import java.lang.management.MemoryNotificationInfo;
+import java.lang.management.MemoryUsage;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import javax.management.ListenerNotFoundException;
+import javax.management.MBeanNotificationInfo;
+import javax.management.NotCompliantMBeanException;
+import javax.management.Notification;
+import javax.management.NotificationEmitter;
+import javax.management.NotificationFilter;
+import javax.management.NotificationListener;
+
+import javax.management.openmbean.CompositeData;
+import javax.management.openmbean.CompositeDataSupport;
+import javax.management.openmbean.CompositeType;
+import javax.management.openmbean.OpenDataException;
+import javax.management.openmbean.OpenType;
+import javax.management.openmbean.SimpleType;
+
+/**
+ * Provides access to information about the memory 
+ * management of the current invocation of the virtual
+ * machine.  Instances of this bean are obtained by calling
+ * {@link ManagementFactory#getMemoryMXBean()}.
+ *
+ * @author Andrew John Hughes (gnu_andrew@member.fsf.org)
+ * @since 1.5
+ */
+public final class MemoryMXBeanImpl
+  extends BeanImpl
+  implements MemoryMXBean, NotificationEmitter
+{
+
+  private List listeners;
+
+  private long notificationCount;
+
+  public static CompositeType notifType;
+
+  public static CompositeType usageType;
+
+  static
+  {
+    try
+      {
+	CompositeType usageType = 
+	  new CompositeType(MemoryUsage.class.getName(),
+			    "Describes the usage levels of a pool",
+			    new String[] { "init", "used",
+					   "committed", "max"
+			    },
+			    new String[] { "Initial level",
+					   "Used level",
+					   "Committed level",
+					   "Maximum level"
+			    },
+			    new OpenType[] {
+			      SimpleType.LONG, SimpleType.LONG,
+			      SimpleType.LONG, SimpleType.LONG
+			    });
+	CompositeType notifType =
+	  new CompositeType(MemoryNotificationInfo.class.getName(),
+			    "Provides the notification info on memory usage",
+			    new String[] { "poolName", "usage", "count" },
+			    new String[] { "Name of the memory pool",
+					   "Usage level of the memory pool",
+					   "Number of times the threshold " +
+					   "has been crossed"
+			    },
+			    new OpenType[] {
+			      SimpleType.STRING, usageType, SimpleType.LONG 
+			    });
+	  }
+	catch (OpenDataException e)
+	  {
+	    throw new IllegalStateException("Something went wrong in creating " +
+					    "the composite data types.", e);
+	  }
+  }
+
+  /**
+   * Constructs a new <code>MemoryMXBeanImpl</code>.
+   *
+   * @throws NotCompliantMBeanException if this class doesn't implement
+   *                                    the interface or a method appears
+   *                                    in the interface that doesn't comply
+   *                                    with the naming conventions.
+   */
+  public MemoryMXBeanImpl()
+    throws NotCompliantMBeanException
+  {
+    super(MemoryMXBean.class);
+    listeners = new ArrayList();
+    notificationCount = 0;
+  }
+
+  public void gc()
+  {
+    System.gc();
+  }
+
+  public MemoryUsage getHeapMemoryUsage()
+  {
+    return VMMemoryMXBeanImpl.getHeapMemoryUsage();
+  }
+
+  public MemoryUsage getNonHeapMemoryUsage()
+  {
+    return VMMemoryMXBeanImpl.getNonHeapMemoryUsage();
+  }
+
+  public int getObjectPendingFinalizationCount()
+  {
+    return VMMemoryMXBeanImpl.getObjectPendingFinalizationCount();
+  }
+
+  public boolean isVerbose()
+  {
+    return VMMemoryMXBeanImpl.isVerbose();
+  }
+
+  public void setVerbose(boolean verbose)
+  {
+    checkControlPermissions();
+    VMMemoryMXBeanImpl.setVerbose(verbose);
+  }
+
+  public void addNotificationListener(NotificationListener listener,
+				      NotificationFilter filter,
+				      Object passback)
+  {
+    if (listener == null)
+      throw new IllegalArgumentException("Null listener added to bean.");
+    listeners.add(new ListenerData(listener, filter, passback));
+  }
+
+  public MBeanNotificationInfo[] getNotificationInfo()
+  {
+    return new MBeanNotificationInfo[]
+      {
+	new MBeanNotificationInfo(new String[]
+	  {
+	    MemoryNotificationInfo.MEMORY_COLLECTION_THRESHOLD_EXCEEDED,
+	    MemoryNotificationInfo.MEMORY_THRESHOLD_EXCEEDED
+	  },
+				  Notification.class.getName(), 
+				  "Memory Usage Notifications")
+      };
+  }
+
+  public void removeNotificationListener(NotificationListener listener)
+    throws ListenerNotFoundException
+  {
+    Iterator it = listeners.iterator();
+    boolean foundOne = false;
+    while (it.hasNext())
+      {
+	ListenerData data = (ListenerData) it.next();
+	if (data.getListener() == listener)
+	  {
+	    it.remove();
+	    foundOne = true;
+	  }
+      }
+    if (!foundOne)
+      throw new ListenerNotFoundException("The specified listener, " + listener +
+					  "is not registered with this bean.");
+  }
+
+  public void removeNotificationListener(NotificationListener listener,
+					 NotificationFilter filter,
+					 Object passback)
+    throws ListenerNotFoundException
+  {
+    if (!(listeners.remove(new ListenerData(listener, filter, passback))))
+      {
+	throw new ListenerNotFoundException("The specified listener, " + listener +
+					    " with filter " + filter + 
+					    "and passback " + passback + 
+					    ", is not registered with this bean.");
+      }
+  }
+
+  void fireNotification(String type, String poolName, long init, long used,
+			long committed, long max, long count)
+  {
+    Notification notif = new Notification(type, this, notificationCount);
+    MemoryUsage usage = new MemoryUsage(init, used, committed, max);
+    CompositeData data;
+    try
+      {
+	data = new CompositeDataSupport(notifType, 
+					new String[] {
+					  "poolName", "usage", "count"
+					},
+					new Object[] {
+					  poolName, usage, Long.valueOf(count)
+					});
+      }
+    catch (OpenDataException e)
+      {
+	throw new IllegalStateException("Something went wrong in creating " +
+					"the composite data instance.", e);
+      }
+    notif.setUserData(data);
+    Iterator it = listeners.iterator();
+    while (it.hasNext())
+      {
+	ListenerData ldata = (ListenerData) it.next();
+	NotificationFilter filter = ldata.getFilter();
+	if (filter == null || filter.isNotificationEnabled(notif))
+	  ldata.getListener().handleNotification(notif, ldata.getPassback());
+      }
+    ++notificationCount;
+  }
+
+  void fireThresholdExceededNotification(String poolName, long init,
+					 long used, long committed,
+					 long max, long count)
+  {
+    fireNotification(MemoryNotificationInfo.MEMORY_THRESHOLD_EXCEEDED,
+		     poolName, init, used, committed, max, count);
+  }
+
+  void fireCollectionThresholdExceededNotification(String poolName,
+						   long init,
+						   long used,
+						   long committed,
+						   long max,
+						   long count)
+  {
+    fireNotification(MemoryNotificationInfo.MEMORY_COLLECTION_THRESHOLD_EXCEEDED,
+		     poolName, init, used, committed, max, count);
+  }
+
+}