diff agent/src/share/classes/sun/jvm/hotspot/gc_implementation/parallelScavenge/ParallelScavengeHeap.java @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/gc_implementation/parallelScavenge/ParallelScavengeHeap.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.gc_implementation.parallelScavenge;
+
+import java.io.*;
+import java.util.*;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.gc_interface.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.types.*;
+
+public class ParallelScavengeHeap extends CollectedHeap {
+   static {
+      VM.registerVMInitializedObserver(new Observer() {
+         public void update(Observable o, Object data) {
+            initialize(VM.getVM().getTypeDataBase());
+         }
+      });
+   }
+
+   private static synchronized void initialize(TypeDataBase db) {
+      Type type = db.lookupType("ParallelScavengeHeap");
+      youngGenField = type.getAddressField("_young_gen");
+      oldGenField    = type.getAddressField("_old_gen");
+      permGenField    = type.getAddressField("_perm_gen");
+   }
+
+   public ParallelScavengeHeap(Address addr) {
+      super(addr);
+   }
+
+   // Fields
+   private static AddressField youngGenField;
+   private static AddressField oldGenField;
+   private static AddressField permGenField;
+
+   // Accessors
+   public PSYoungGen youngGen() {
+      return (PSYoungGen) VMObjectFactory.newObject(PSYoungGen.class, youngGenField.getValue());
+   }
+
+   public PSOldGen oldGen() {
+      return (PSOldGen) VMObjectFactory.newObject(PSOldGen.class, oldGenField.getValue());
+   }
+
+   public PSPermGen permGen() {
+      return (PSPermGen) VMObjectFactory.newObject(PSPermGen.class, permGenField.getValue());
+   }
+
+   public long capacity() {
+      return youngGen().capacity() + oldGen().capacity();
+   }
+
+   public long used() {
+      return youngGen().used() + oldGen().used();
+   }
+
+   public boolean isIn(Address a) {
+      if (youngGen().isIn(a)) {
+         return true;
+      }
+
+      if (oldGen().isIn(a)) {
+         return true;
+      }
+
+      if (permGen().isIn(a)) {
+         return true;
+      }
+
+      return false;
+   }
+
+   public CollectedHeapName kind() {
+      return CollectedHeapName.PARALLEL_SCAVENGE_HEAP;
+   }
+
+   public void printOn(PrintStream tty) {
+      tty.print("ParallelScavengeHeap [ ");
+      youngGen().printOn(tty);
+      oldGen().printOn(tty);
+      permGen().printOn(tty);
+      tty.print(" ] ");
+   }
+}