--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/memory/GenCollectedHeap.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2000-2003 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.memory;
+
+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.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class GenCollectedHeap extends SharedHeap {
+  private static CIntegerField nGensField;
+  private static long gensOffset;
+  private static AddressField genSpecsField;
+
+  private static GenerationFactory genFactory;
+
+  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("GenCollectedHeap");
+
+    nGensField = type.getCIntegerField("_n_gens");
+    gensOffset = type.getField("_gens").getOffset();
+    genSpecsField = type.getAddressField("_gen_specs");
+
+    genFactory = new GenerationFactory();
+  }
+
+  public GenCollectedHeap(Address addr) {
+    super(addr);
+  }
+
+  public int nGens() {
+    return (int) nGensField.getValue(addr);
+  }
+
+  public Generation getGen(int i) {
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that((i >= 0) && (i < nGens()), "Index " + i +
+                  " out of range (should be between 0 and " + nGens() + ")");
+    }
+
+    if ((i < 0) || (i >= nGens())) {
+      return null;
+    }
+
+    Address genAddr = addr.getAddressAt(gensOffset +
+                                        (i * VM.getVM().getAddressSize()));
+    return genFactory.newObject(addr.getAddressAt(gensOffset +
+                                                  (i * VM.getVM().getAddressSize())));
+  }
+
+  public boolean isIn(Address a) {
+    for (int i = 0; i < nGens(); i++) {
+      Generation gen = getGen(i);
+      if (gen.isIn(a)) {
+        return true;
+      }
+    }
+
+    return permGen().isIn(a);
+  }
+
+  public long capacity() {
+    long capacity = 0;
+    for (int i = 0; i < nGens(); i++) {
+      capacity += getGen(i).capacity();
+    }
+    return capacity;
+  }
+
+  public long used() {
+    long used = 0;
+    for (int i = 0; i < nGens(); i++) {
+      used += getGen(i).used();
+    }
+    return used;
+  }
+
+  /** Package-private access to GenerationSpecs */
+  GenerationSpec spec(int level) {
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that((level >= 0) && (level < nGens()), "Index " + level +
+                  " out of range (should be between 0 and " + nGens() + ")");
+    }
+
+    if ((level < 0) || (level >= nGens())) {
+      return null;
+    }
+
+    Address ptrList = genSpecsField.getValue(addr);
+    if (ptrList == null) {
+      return null;
+    }
+    return (GenerationSpec)
+      VMObjectFactory.newObject(GenerationSpec.class,
+                                ptrList.getAddressAt(level * VM.getVM().getAddressSize()));
+  }
+
+  public CollectedHeapName kind() {
+    return CollectedHeapName.GEN_COLLECTED_HEAP;
+  }
+
+  public void printOn(PrintStream tty) {
+    for (int i = 0; i < nGens(); i++) {
+      tty.print("Gen " + i + ": ");
+      getGen(i).printOn(tty);
+      tty.println("Invocations: " + getGen(i).invocations());
+      tty.println();
+    }
+    permGen().printOn(tty);
+    tty.println("Invocations: " + permGen().invocations());
+  }
+}