--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/gc_implementation/parallelScavenge/asPSOldGen.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,57 @@
+/*
+ * 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.
+ *
+ */
+
+class ASPSOldGen : public PSOldGen {
+  friend class VMStructs;
+  size_t _gen_size_limit;  // Largest size the generation's reserved size
+                           // can grow.
+ public:
+  ASPSOldGen(size_t initial_byte_size,
+             size_t minimum_byte_size,
+             size_t byte_size_limit,
+             const char* gen_name, int level);
+  ASPSOldGen(PSVirtualSpace* vs,
+             size_t initial_byte_size,
+             size_t minimum_byte_size,
+             size_t byte_size_limit,
+             const char* gen_name, int level);
+  size_t gen_size_limit()               { return _gen_size_limit; }
+  size_t max_gen_size()                 { return _reserved.byte_size(); }
+  void set_gen_size_limit(size_t v)     { _gen_size_limit = v; }
+
+  // After a shrink or expand reset the generation
+  void reset_after_change();
+
+  // Return number of bytes that the virtual space in the generation is willing
+  // to expand or contract.  The results from these methods should feed into the
+  // decisions about adjusting the virtual space.
+  size_t available_for_expansion();
+  size_t available_for_contraction();
+
+  // Accessors
+  void set_reserved(MemRegion v) { _reserved = v; }
+
+  // Debugging support
+  virtual const char* short_name() const { return "ASPSOldGen"; }
+};