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/*
* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef SHARE_GC_G1_G1EDENREGIONS_HPP
#define SHARE_GC_G1_G1EDENREGIONS_HPP
#include "gc/g1/g1RegionsOnNodes.hpp"
#include "gc/g1/heapRegion.hpp"
#include "runtime/globals.hpp"
#include "utilities/debug.hpp"
class G1EdenRegions {
private:
int _length;
// Sum of used bytes from all retired eden regions.
// I.e. updated when mutator regions are retired.
volatile size_t _used_bytes;
G1RegionsOnNodes _regions_on_node;
public:
G1EdenRegions() : _length(0), _used_bytes(0), _regions_on_node() { }
uint add(HeapRegion* hr) {
assert(!hr->is_eden(), "should not already be set");
_length++;
return _regions_on_node.add(hr);
}
void clear() {
_length = 0;
_used_bytes = 0;
_regions_on_node.clear();
}
uint length() const { return _length; }
uint regions_on_node(uint node_index) const { return _regions_on_node.count(node_index); }
size_t used_bytes() const { return _used_bytes; }
void add_used_bytes(size_t used_bytes) {
_used_bytes += used_bytes;
}
};
#endif // SHARE_GC_G1_G1EDENREGIONS_HPP
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