Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/jfr/leakprofiler/chains/dfsClosure.hpp
src/share/vm/jfr/leakprofiler/chains/dfsClosure.hpp
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- b985cbb00e68
- child 9885
- 8e875c964f41
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| 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_JFR_LEAKPROFILER_CHAINS_DFSCLOSURE_HPP | |
| 26 #define SHARE_VM_JFR_LEAKPROFILER_CHAINS_DFSCLOSURE_HPP | |
| 27 | |
| 28 #include "memory/iterator.hpp" | |
| 29 #include "oops/oop.hpp" | |
| 30 | |
| 31 class BitSet; | |
| 32 class Edge; | |
| 33 class EdgeStore; | |
| 34 class EdgeQueue; | |
| 35 | |
| 36 // Class responsible for iterating the heap depth-first | |
| 37 class DFSClosure: public ExtendedOopClosure { // XXX BasicOopIterateClosure | |
| 38 private: | |
| 39 static EdgeStore* _edge_store; | |
| 40 static BitSet* _mark_bits; | |
| 41 static const Edge*_start_edge; | |
| 42 static size_t _max_depth; | |
| 43 static bool _ignore_root_set; | |
| 44 DFSClosure* _parent; | |
| 45 const oop* _reference; | |
| 46 size_t _depth; | |
| 47 | |
| 48 void add_chain(); | |
| 49 void closure_impl(const oop* reference, const oop pointee); | |
| 50 | |
| 51 DFSClosure* parent() const { return _parent; } | |
| 52 const oop* reference() const { return _reference; } | |
| 53 | |
| 54 DFSClosure(DFSClosure* parent, size_t depth); | |
| 55 DFSClosure(); | |
| 56 | |
| 57 public: | |
| 58 static void find_leaks_from_edge(EdgeStore* edge_store, BitSet* mark_bits, const Edge* start_edge); | |
| 59 static void find_leaks_from_root_set(EdgeStore* edge_store, BitSet* mark_bits); | |
| 60 | |
| 61 virtual void do_oop(oop* ref); | |
| 62 virtual void do_oop(narrowOop* ref); | |
| 63 }; | |
| 64 | |
| 65 #endif // SHARE_VM_JFR_LEAKPROFILER_CHAINS_DFSCLOSURE_HPP |
