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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
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* 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
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#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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