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src/share/vm/memory/watermark.hpp@167c2986d91b (annotated)

src/share/vm/memory/watermark.hpp

Wed, 16 Dec 2009 12:54:49 -0500

author

phh

date

Wed, 16 Dec 2009 12:54:49 -0500

changeset 1558

167c2986d91b

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6843629: Make current hotspot build part of jdk5 control build
Summary: Source changes for older compilers plus makefile changes.
Reviewed-by: xlu

duke@435	1	/*
duke@435	2	* Copyright 2000-2001 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// A water mark points into a space and is used during GC to keep track of
duke@435	26	// progress.
duke@435	27
duke@435	28	class Space;
duke@435	29
duke@435	30	class WaterMark VALUE_OBJ_CLASS_SPEC {
duke@435	31	friend class VMStructs;
duke@435	32	private:
duke@435	33	HeapWord* _point;
duke@435	34	Space* _space;
duke@435	35	public:
duke@435	36	// Accessors
duke@435	37	Space* space() const { return _space; }
duke@435	38	void set_space(Space* s) { _space = s; }
duke@435	39	HeapWord* point() const { return _point; }
duke@435	40	void set_point(HeapWord* p) { _point = p; }
duke@435	41
duke@435	42	// Constructors
duke@435	43	WaterMark(Space* s, HeapWord* p) : _space(s), _point(p) {};
duke@435	44	WaterMark() : _space(NULL), _point(NULL) {};
duke@435	45	};
duke@435	46
duke@435	47	inline bool operator==(const WaterMark& x, const WaterMark& y) {
duke@435	48	return (x.point() == y.point()) && (x.space() == y.space());
duke@435	49	}
duke@435	50
duke@435	51	inline bool operator!=(const WaterMark& x, const WaterMark& y) {
duke@435	52	return !(x == y);
duke@435	53	}