hotspot/src/share/vm/memory/metaspaceCounters.hpp
author coleenp
Fri, 08 Mar 2013 11:47:57 -0500
changeset 15928 f9d5c6e4107f
parent 14847 92a59a418262
child 15860 4375d0d48f37
permissions -rw-r--r--
8003553: NPG: metaspace objects should be zeroed in constructors Summary: Zero metadata in constructors, not in allocation (and some in constructors) Reviewed-by: jmasa, sspitsyn
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/*
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 * Copyright (c) 2012, 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_METASPACECOUNTERS_HPP
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#define SHARE_VM_MEMORY_METASPACECOUNTERS_HPP
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#include "runtime/perfData.hpp"
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class MetaspaceCounters: public CHeapObj<mtClass> {
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  friend class VMStructs;
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  PerfVariable*      _current_size;
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  PerfVariable*      _capacity;
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  PerfVariable*      _used;
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  PerfVariable*      _max_capacity;
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  char*              _name_space;
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  static MetaspaceCounters* _metaspace_counters;
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  void initialize(size_t min_capacity,
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                  size_t max_capacity,
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                  size_t curr_capacity,
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                  size_t used);
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 public:
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  MetaspaceCounters();
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  ~MetaspaceCounters();
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  void update_capacity();
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  void update_used();
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  void update_max_capacity();
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  void update_all();
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  static void initialize_performance_counters();
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  static void update_performance_counters();
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};
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#endif // SHARE_VM_MEMORY_METASPACECOUNTERS_HPP