/*

 * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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.

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#ifndef SHARE_JFR_LEAKPROFILER_CHAINS_EDGEUTILS_HPP

#define SHARE_JFR_LEAKPROFILER_CHAINS_EDGEUTILS_HPP

#include "memory/allocation.hpp"

class Edge;

class Symbol;

class EdgeUtils : public AllStatic {

 public:

  static const size_t leak_context = 100;

  static const size_t root_context = 100;

  static const size_t max_ref_chain_depth = leak_context + root_context;

  static bool is_leak_edge(const Edge& edge);

  static const Edge* root(const Edge& edge);

  static const Edge* ancestor(const Edge& edge, size_t distance);

  static bool is_array_element(const Edge& edge);

  static int array_index(const Edge& edge);

  static int array_size(const Edge& edge);

  static const Symbol* field_name_symbol(const Edge& edge);

  static jshort field_modifiers(const Edge& edge);

};

#endif // SHARE_JFR_LEAKPROFILER_CHAINS_EDGEUTILS_HPP