--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/gc_implementation/parallelScavenge/psGenerationCounters.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,43 @@
+
+/*
+ * Copyright 2004 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.
+ *
+ */
+
+// A PSGenerationCounter is a holder class for performance counters
+// that track a generation
+
+class PSGenerationCounters: public GenerationCounters {
+  friend class VMStructs;
+
+ private:
+  PSVirtualSpace*      _ps_virtual_space;
+
+ public:
+  PSGenerationCounters(const char* name, int ordinal, int spaces,
+                     PSVirtualSpace* v);
+
+  void update_all() {
+    assert(_virtual_space == NULL, "Only one should be in use");
+    _current_size->set_value(_ps_virtual_space->committed_size());
+  }
+};