1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/share/vm/jfr/leakprofiler/chains/dfsClosure.hpp Mon Aug 12 18:30:40 2019 +0300 1.3 @@ -0,0 +1,65 @@ 1.4 +/* 1.5 + * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.23 + * or visit www.oracle.com if you need additional information or have any 1.24 + * questions. 1.25 + * 1.26 + */ 1.27 + 1.28 +#ifndef SHARE_VM_JFR_LEAKPROFILER_CHAINS_DFSCLOSURE_HPP 1.29 +#define SHARE_VM_JFR_LEAKPROFILER_CHAINS_DFSCLOSURE_HPP 1.30 + 1.31 +#include "memory/iterator.hpp" 1.32 +#include "oops/oop.hpp" 1.33 + 1.34 +class BitSet; 1.35 +class Edge; 1.36 +class EdgeStore; 1.37 +class EdgeQueue; 1.38 + 1.39 +// Class responsible for iterating the heap depth-first 1.40 +class DFSClosure: public ExtendedOopClosure { // XXX BasicOopIterateClosure 1.41 + private: 1.42 + static EdgeStore* _edge_store; 1.43 + static BitSet* _mark_bits; 1.44 + static const Edge*_start_edge; 1.45 + static size_t _max_depth; 1.46 + static bool _ignore_root_set; 1.47 + DFSClosure* _parent; 1.48 + const oop* _reference; 1.49 + size_t _depth; 1.50 + 1.51 + void add_chain(); 1.52 + void closure_impl(const oop* reference, const oop pointee); 1.53 + 1.54 + DFSClosure* parent() const { return _parent; } 1.55 + const oop* reference() const { return _reference; } 1.56 + 1.57 + DFSClosure(DFSClosure* parent, size_t depth); 1.58 + DFSClosure(); 1.59 + 1.60 + public: 1.61 + static void find_leaks_from_edge(EdgeStore* edge_store, BitSet* mark_bits, const Edge* start_edge); 1.62 + static void find_leaks_from_root_set(EdgeStore* edge_store, BitSet* mark_bits); 1.63 + 1.64 + virtual void do_oop(oop* ref); 1.65 + virtual void do_oop(narrowOop* ref); 1.66 +}; 1.67 + 1.68 +#endif // SHARE_VM_JFR_LEAKPROFILER_CHAINS_DFSCLOSURE_HPP