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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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*
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* 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef SHARE_VM_MEMORY_WATERMARK_HPP
#define SHARE_VM_MEMORY_WATERMARK_HPP
#include "memory/allocation.hpp"
#include "utilities/globalDefinitions.hpp"
// A water mark points into a space and is used during GC to keep track of
// progress.
class Space;
class WaterMark VALUE_OBJ_CLASS_SPEC {
friend class VMStructs;
private:
HeapWord* _point;
Space* _space;
public:
// Accessors
Space* space() const { return _space; }
void set_space(Space* s) { _space = s; }
HeapWord* point() const { return _point; }
void set_point(HeapWord* p) { _point = p; }
// Constructors
WaterMark(Space* s, HeapWord* p) : _space(s), _point(p) {};
WaterMark() : _space(NULL), _point(NULL) {};
};
inline bool operator==(const WaterMark& x, const WaterMark& y) {
return (x.point() == y.point()) && (x.space() == y.space());
}
inline bool operator!=(const WaterMark& x, const WaterMark& y) {
return !(x == y);
}
#endif // SHARE_VM_MEMORY_WATERMARK_HPP