author | coleenp |
Wed, 13 Nov 2019 08:23:23 -0500 | |
changeset 59056 | 15936b142f86 |
parent 53244 | 9807daeb47c4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2014, 2019, 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_JFR_LEAKPROFILER_CHAINS_EDGEQUEUE_HPP |
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#define SHARE_JFR_LEAKPROFILER_CHAINS_EDGEQUEUE_HPP |
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#include "memory/allocation.hpp" |
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#include "jfr/leakprofiler/chains/edge.hpp" |
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class JfrVirtualMemory; |
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class EdgeQueue : public CHeapObj<mtTracing> { |
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private: |
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JfrVirtualMemory* _vmm; |
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const size_t _reservation_size_bytes; |
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const size_t _commit_block_size_bytes; |
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mutable size_t _top_index; |
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mutable size_t _bottom_index; |
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public: |
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EdgeQueue(size_t reservation_size_bytes, size_t commit_block_size_bytes); |
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~EdgeQueue(); |
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bool initialize(); |
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void add(const Edge* parent, const oop* ref); |
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const Edge* remove() const; |
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const Edge* element_at(size_t index) const; |
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size_t top() const; |
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size_t bottom() const; |
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bool is_empty() const; |
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bool is_full() const; |
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size_t reserved_size() const; |
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size_t live_set() const; |
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size_t sizeof_edge() const; // with alignments |
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}; |
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#endif // SHARE_JFR_LEAKPROFILER_CHAINS_EDGEQUEUE_HPP |