hotspot/src/share/vm/services/nmtDCmd.hpp
author tschatzl
Wed, 09 Oct 2013 10:57:01 +0200
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child 25946 1572c9f03fb9
permissions -rw-r--r--
8003420: NPG: make new GC root for pd_set Summary: Move protection domain oops from system dictionary entries into a seperate set; the system dictionary references entries in that set now. This allows fast iteration during non-classunloading garbage collection. Implementation based on initial prototype from Ioi Lam (iklam). Reviewed-by: coleenp, iklam
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/*
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 * Copyright (c) 2012, 2013, 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_SERVICES_NMT_DCMD_HPP
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#define SHARE_VM_SERVICES_NMT_DCMD_HPP
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#include "services/diagnosticArgument.hpp"
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#include "services/diagnosticFramework.hpp"
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/**
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 * Native memory tracking DCmd implementation
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 */
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class NMTDCmd: public DCmdWithParser {
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 protected:
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  DCmdArgument<bool>  _summary;
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  DCmdArgument<bool>  _detail;
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  DCmdArgument<bool>  _baseline;
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  DCmdArgument<bool>  _summary_diff;
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  DCmdArgument<bool>  _detail_diff;
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  DCmdArgument<bool>  _shutdown;
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  DCmdArgument<bool>  _auto_shutdown;
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#ifndef PRODUCT
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  DCmdArgument<bool>  _debug;
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#endif
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  DCmdArgument<char*> _scale;
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 public:
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  NMTDCmd(outputStream* output, bool heap);
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  static const char* name() { return "VM.native_memory"; }
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  static const char* description() {
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    return "Print native memory usage";
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  }
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  static const char* impact() {
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    return "Medium";
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  }
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  static const JavaPermission permission() {
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    JavaPermission p = {"java.lang.management.ManagementPermission",
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                        "monitor", NULL};
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    return p;
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  }
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  static int num_arguments();
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  virtual void execute(DCmdSource source, TRAPS);
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};
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#endif // SHARE_VM_SERVICES_NMT_DCMD_HPP