hotspot/src/share/vm/memory/compactPermGen.hpp
author tonyp
Tue, 08 Nov 2011 00:41:28 -0500
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7099849: G1: include heap region information in hs_err files Reviewed-by: johnc, brutisso, poonam
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/*
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 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_VM_MEMORY_COMPACTPERMGEN_HPP
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#define SHARE_VM_MEMORY_COMPACTPERMGEN_HPP
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#include "memory/generation.hpp"
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#include "memory/permGen.hpp"
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class ContigPermSpace;
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class CardTableModRefBS;
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class CompactingPermGenGen;
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class PermanentGenerationSpec;
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// A PermGen implemented with a contiguous space.
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class CompactingPermGen:  public PermGen {
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  friend class VMStructs;
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protected:
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  // The "generation" view.
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  OneContigSpaceCardGeneration* _gen;
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public:
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  CompactingPermGen(ReservedSpace rs, ReservedSpace shared_rs,
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                    size_t initial_byte_size, GenRemSet* remset,
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                    PermanentGenerationSpec* perm_spec);
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  HeapWord* mem_allocate(size_t size);
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  void compute_new_size();
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  Generation* as_gen() const { return _gen; }
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};
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#endif // SHARE_VM_MEMORY_COMPACTPERMGEN_HPP