diff -r 075a9ef4e467 -r eb506d590394 hotspot/src/share/vm/services/g1MemoryPool.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/services/g1MemoryPool.cpp	Fri Nov 20 14:47:01 2009 -0500
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2007 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.
+ *
+ */
+
+# include "incls/_precompiled.incl"
+# include "incls/_g1MemoryPool.cpp.incl"
+
+G1MemoryPoolSuper::G1MemoryPoolSuper(G1CollectedHeap* g1h,
+                                     const char* name,
+                                     size_t init_size,
+                                     size_t max_size,
+                                     bool support_usage_threshold) :
+  _g1h(g1h), CollectedMemoryPool(name,
+                                 MemoryPool::Heap,
+                                 init_size,
+                                 max_size,
+                                 support_usage_threshold) {
+  assert(UseG1GC, "sanity");
+}
+
+// See the comment at the top of g1MemoryPool.hpp
+size_t G1MemoryPoolSuper::eden_space_committed(G1CollectedHeap* g1h) {
+  return eden_space_used(g1h);
+}
+
+// See the comment at the top of g1MemoryPool.hpp
+size_t G1MemoryPoolSuper::eden_space_used(G1CollectedHeap* g1h) {
+  size_t young_list_length = g1h->young_list_length();
+  size_t eden_used = young_list_length * HeapRegion::GrainBytes;
+  size_t survivor_used = survivor_space_used(g1h);
+  eden_used = subtract_up_to_zero(eden_used, survivor_used);
+  return eden_used;
+}
+
+// See the comment at the top of g1MemoryPool.hpp
+size_t G1MemoryPoolSuper::eden_space_max(G1CollectedHeap* g1h) {
+  return eden_space_committed(g1h);
+}
+
+// See the comment at the top of g1MemoryPool.hpp
+size_t G1MemoryPoolSuper::survivor_space_committed(G1CollectedHeap* g1h) {
+  return survivor_space_used(g1h);
+}
+
+// See the comment at the top of g1MemoryPool.hpp
+size_t G1MemoryPoolSuper::survivor_space_used(G1CollectedHeap* g1h) {
+  size_t survivor_num = g1h->g1_policy()->recorded_survivor_regions();
+  size_t survivor_used = survivor_num * HeapRegion::GrainBytes;
+  return survivor_used;
+}
+
+// See the comment at the top of g1MemoryPool.hpp
+size_t G1MemoryPoolSuper::survivor_space_max(G1CollectedHeap* g1h) {
+  return survivor_space_committed(g1h);
+}
+
+// See the comment at the top of g1MemoryPool.hpp
+size_t G1MemoryPoolSuper::old_space_committed(G1CollectedHeap* g1h) {
+  size_t committed = overall_committed(g1h);
+  size_t eden_committed = eden_space_committed(g1h);
+  size_t survivor_committed = survivor_space_committed(g1h);
+  committed = subtract_up_to_zero(committed, eden_committed);
+  committed = subtract_up_to_zero(committed, survivor_committed);
+  return committed;
+}
+
+// See the comment at the top of g1MemoryPool.hpp
+size_t G1MemoryPoolSuper::old_space_used(G1CollectedHeap* g1h) {
+  size_t used = overall_used(g1h);
+  size_t eden_used = eden_space_used(g1h);
+  size_t survivor_used = survivor_space_used(g1h);
+  used = subtract_up_to_zero(used, eden_used);
+  used = subtract_up_to_zero(used, survivor_used);
+  return used;
+}
+
+// See the comment at the top of g1MemoryPool.hpp
+size_t G1MemoryPoolSuper::old_space_max(G1CollectedHeap* g1h) {
+  size_t max = g1h->g1_reserved_obj_bytes();
+  size_t eden_max = eden_space_max(g1h);
+  size_t survivor_max = survivor_space_max(g1h);
+  max = subtract_up_to_zero(max, eden_max);
+  max = subtract_up_to_zero(max, survivor_max);
+  return max;
+}
+
+G1EdenPool::G1EdenPool(G1CollectedHeap* g1h) :
+  G1MemoryPoolSuper(g1h,
+                    "G1 Eden",
+                    eden_space_committed(g1h), /* init_size */
+                    eden_space_max(g1h), /* max_size */
+                    false /* support_usage_threshold */) {
+}
+
+MemoryUsage G1EdenPool::get_memory_usage() {
+  size_t maxSize   = max_size();
+  size_t used      = used_in_bytes();
+  size_t committed = eden_space_committed();
+
+  return MemoryUsage(initial_size(), used, committed, maxSize);
+}
+
+G1SurvivorPool::G1SurvivorPool(G1CollectedHeap* g1h) :
+  G1MemoryPoolSuper(g1h,
+                    "G1 Survivor",
+                    survivor_space_committed(g1h), /* init_size */
+                    survivor_space_max(g1h), /* max_size */
+                    false /* support_usage_threshold */) {
+}
+
+MemoryUsage G1SurvivorPool::get_memory_usage() {
+  size_t maxSize   = max_size();
+  size_t used      = used_in_bytes();
+  size_t committed = survivor_space_committed();
+
+  return MemoryUsage(initial_size(), used, committed, maxSize);
+}
+
+G1OldGenPool::G1OldGenPool(G1CollectedHeap* g1h) :
+  G1MemoryPoolSuper(g1h,
+                    "G1 Old Gen",
+                    old_space_committed(g1h), /* init_size */
+                    old_space_max(g1h), /* max_size */
+                    true /* support_usage_threshold */) {
+}
+
+MemoryUsage G1OldGenPool::get_memory_usage() {
+  size_t maxSize   = max_size();
+  size_t used      = used_in_bytes();
+  size_t committed = old_space_committed();
+
+  return MemoryUsage(initial_size(), used, committed, maxSize);
+}