54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
/*
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* Copyright 2000-2001 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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// A water mark points into a space and is used during GC to keep track of
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// progress.
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class Space;
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class WaterMark VALUE_OBJ_CLASS_SPEC {
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friend class VMStructs;
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private:
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HeapWord* _point;
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Space* _space;
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public:
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// Accessors
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Space* space() const { return _space; }
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void set_space(Space* s) { _space = s; }
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HeapWord* point() const { return _point; }
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void set_point(HeapWord* p) { _point = p; }
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// Constructors
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WaterMark(Space* s, HeapWord* p) : _space(s), _point(p) {};
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WaterMark() : _space(NULL), _point(NULL) {};
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};
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inline bool operator==(const WaterMark& x, const WaterMark& y) {
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return (x.point() == y.point()) && (x.space() == y.space());
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}
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inline bool operator!=(const WaterMark& x, const WaterMark& y) {
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return !(x == y);
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}
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