/*

 * Copyright 2001-2005 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 AdaptivePaddedAverage;

class PSPermGen : public PSOldGen {

  friend class VMStructs;

 protected:

  AdaptivePaddedAverage* _avg_size;  // Used for sizing

  size_t _last_used;                 // Amount used at last GC, used for sizing

 public:

  // Initialize the generation.

  PSPermGen(ReservedSpace rs, size_t alignment, size_t initial_byte_size,

            size_t minimum_byte_size, size_t maximum_byte_size,

            const char* gen_name, int level);

  // Permanent Gen special allocation. Uses the OldGen allocation

  // routines, which should not be directly called on this generation.

  HeapWord* allocate_permanent(size_t word_size);

  // Size calculation.

  void compute_new_size(size_t used_before_collection);

  // MarkSweep code

  virtual void precompact();

  // Parallel old

  virtual void move_and_update(ParCompactionManager* cm);

  virtual const char* name() const { return "PSPermGen"; }

};