1 /* 2 * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_LEAKPROFILER_CHAINS_EDGEUTILS_HPP 26 #define SHARE_VM_LEAKPROFILER_CHAINS_EDGEUTILS_HPP 27 28 #include "memory/allocation.hpp" 29 30 class Edge; 31 class Symbol; 32 33 class EdgeUtils : public AllStatic { 34 public: 35 static const size_t leak_context = 100; 36 static const size_t root_context = 100; 37 static const size_t max_ref_chain_depth = leak_context + root_context; 38 39 static bool is_leak_edge(const Edge& edge); 40 static const Edge* root(const Edge& edge); 41 static const Edge* ancestor(const Edge& edge, size_t distance); 42 43 static bool is_array_element(const Edge& edge); 44 static int array_index(const Edge& edge); 45 static int array_size(const Edge& edge); 46 47 static const Symbol* field_name_symbol(const Edge& edge); 48 static jshort field_modifiers(const Edge& edge); 49 }; 50 51 #endif // SHARE_VM_LEAKPROFILER_CHAINS_EDGEUTILS_HPP