view src/share/vm/memory/compactPermGen.hpp @ 3465:d2a62e0f25eb

6995781: Native Memory Tracking (Phase 1) 7151532: DCmd for hotspot native memory tracking Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd Reviewed-by: acorn, coleenp, fparain
author zgu
date Thu, 28 Jun 2012 17:03:16 -0400
parents c18cbe5936b8
children
line wrap: on
line source
/*
 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_MEMORY_COMPACTPERMGEN_HPP
#define SHARE_VM_MEMORY_COMPACTPERMGEN_HPP

#include "memory/generation.hpp"
#include "memory/permGen.hpp"

class ContigPermSpace;
class CardTableModRefBS;
class CompactingPermGenGen;
class PermanentGenerationSpec;

// A PermGen implemented with a contiguous space.
class CompactingPermGen:  public PermGen {
  friend class VMStructs;
protected:
  // The "generation" view.
  OneContigSpaceCardGeneration* _gen;

public:
  CompactingPermGen(ReservedSpace rs, ReservedSpace shared_rs,
                    size_t initial_byte_size, GenRemSet* remset,
                    PermanentGenerationSpec* perm_spec);

  HeapWord* mem_allocate(size_t size);

  void compute_new_size();

  Generation* as_gen() const { return _gen; }

};

#endif // SHARE_VM_MEMORY_COMPACTPERMGEN_HPP