59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
/*
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* Copyright (c) 2015, 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_GC_G1_G1EDENREGIONS_HPP
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#define SHARE_GC_G1_G1EDENREGIONS_HPP
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#include "gc/g1/heapRegion.hpp"
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#include "runtime/globals.hpp"
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#include "utilities/debug.hpp"
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class G1EdenRegions {
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private:
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int _length;
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// Sum of used bytes from all retired eden regions.
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// I.e. updated when mutator regions are retired.
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volatile size_t _used_bytes;
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public:
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G1EdenRegions() : _length(0), _used_bytes(0) { }
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void add(HeapRegion* hr) {
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assert(!hr->is_eden(), "should not already be set");
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_length++;
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}
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void clear() { _length = 0; _used_bytes = 0; }
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uint length() const { return _length; }
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size_t used_bytes() const { return _used_bytes; }
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void add_used_bytes(size_t used_bytes) {
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_used_bytes += used_bytes;
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}
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};
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#endif // SHARE_GC_G1_G1EDENREGIONS_HPP
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