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src/share/vm/gc_implementation/parNew/parOopClosures.hpp@a93a9eda13f7 (annotated)

src/share/vm/gc_implementation/parNew/parOopClosures.hpp

Fri, 16 Jul 2010 21:33:21 -0700

author

jcoomes

date

Fri, 16 Jul 2010 21:33:21 -0700

changeset 2020

a93a9eda13f7

parent 1907

c18cbe5936b8

child 2314

f95d63e2154a

permissions

-rw-r--r--

6962947: shared TaskQueue statistics
Reviewed-by: tonyp, ysr

duke@435	1	/*
jcoomes@2020	2	* Copyright (c) 2007, 2010, Oracle and/or its affiliates. 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	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// Closures for ParNewGeneration
duke@435	26
duke@435	27	class ParScanThreadState;
duke@435	28	class ParNewGeneration;
jcoomes@2020	29	typedef Padded<OopTaskQueue> ObjToScanQueue;
jcoomes@2020	30	typedef GenericTaskQueueSet<ObjToScanQueue> ObjToScanQueueSet;
duke@435	31	class ParallelTaskTerminator;
duke@435	32
duke@435	33	class ParScanClosure: public OopsInGenClosure {
coleenp@548	34	protected:
duke@435	35	ParScanThreadState* _par_scan_state;
coleenp@548	36	ParNewGeneration* _g;
coleenp@548	37	HeapWord* _boundary;
coleenp@548	38	template <class T> void inline par_do_barrier(T* p);
coleenp@548	39	template <class T> void inline do_oop_work(T* p,
coleenp@548	40	bool gc_barrier,
coleenp@548	41	bool root_scan);
coleenp@548	42	public:
duke@435	43	ParScanClosure(ParNewGeneration* g, ParScanThreadState* par_scan_state);
duke@435	44	};
duke@435	45
duke@435	46	class ParScanWithBarrierClosure: public ParScanClosure {
coleenp@548	47	public:
duke@435	48	ParScanWithBarrierClosure(ParNewGeneration* g,
duke@435	49	ParScanThreadState* par_scan_state) :
duke@435	50	ParScanClosure(g, par_scan_state) {}
coleenp@548	51	virtual void do_oop(oop* p);
coleenp@548	52	virtual void do_oop(narrowOop* p);
coleenp@548	53	inline void do_oop_nv(oop* p);
coleenp@548	54	inline void do_oop_nv(narrowOop* p);
duke@435	55	};
duke@435	56
duke@435	57	class ParScanWithoutBarrierClosure: public ParScanClosure {
coleenp@548	58	public:
duke@435	59	ParScanWithoutBarrierClosure(ParNewGeneration* g,
duke@435	60	ParScanThreadState* par_scan_state) :
duke@435	61	ParScanClosure(g, par_scan_state) {}
coleenp@548	62	virtual void do_oop(oop* p);
coleenp@548	63	virtual void do_oop(narrowOop* p);
coleenp@548	64	inline void do_oop_nv(oop* p);
coleenp@548	65	inline void do_oop_nv(narrowOop* p);
duke@435	66	};
duke@435	67
duke@435	68	class ParRootScanWithBarrierTwoGensClosure: public ParScanClosure {
coleenp@548	69	public:
duke@435	70	ParRootScanWithBarrierTwoGensClosure(ParNewGeneration* g,
duke@435	71	ParScanThreadState* par_scan_state) :
duke@435	72	ParScanClosure(g, par_scan_state) {}
coleenp@548	73	virtual void do_oop(oop* p);
coleenp@548	74	virtual void do_oop(narrowOop* p);
duke@435	75	};
duke@435	76
duke@435	77	class ParRootScanWithoutBarrierClosure: public ParScanClosure {
coleenp@548	78	public:
duke@435	79	ParRootScanWithoutBarrierClosure(ParNewGeneration* g,
duke@435	80	ParScanThreadState* par_scan_state) :
duke@435	81	ParScanClosure(g, par_scan_state) {}
coleenp@548	82	virtual void do_oop(oop* p);
coleenp@548	83	virtual void do_oop(narrowOop* p);
duke@435	84	};
duke@435	85
duke@435	86	class ParScanWeakRefClosure: public ScanWeakRefClosure {
coleenp@548	87	protected:
duke@435	88	ParScanThreadState* _par_scan_state;
coleenp@548	89	template <class T> inline void do_oop_work(T* p);
coleenp@548	90	public:
duke@435	91	ParScanWeakRefClosure(ParNewGeneration* g,
duke@435	92	ParScanThreadState* par_scan_state);
coleenp@548	93	virtual void do_oop(oop* p);
coleenp@548	94	virtual void do_oop(narrowOop* p);
coleenp@548	95	inline void do_oop_nv(oop* p);
coleenp@548	96	inline void do_oop_nv(narrowOop* p);
duke@435	97	};
duke@435	98
duke@435	99	class ParEvacuateFollowersClosure: public VoidClosure {
coleenp@548	100	private:
duke@435	101	ParScanThreadState* _par_scan_state;
duke@435	102	ParScanThreadState* par_scan_state() { return _par_scan_state; }
duke@435	103
duke@435	104	// We want to preserve the specific types here (rather than "OopClosure")
duke@435	105	// for later de-virtualization of do_oop calls.
duke@435	106	ParScanWithoutBarrierClosure* _to_space_closure;
duke@435	107	ParScanWithoutBarrierClosure* to_space_closure() {
duke@435	108	return _to_space_closure;
duke@435	109	}
duke@435	110	ParRootScanWithoutBarrierClosure* _to_space_root_closure;
duke@435	111	ParRootScanWithoutBarrierClosure* to_space_root_closure() {
duke@435	112	return _to_space_root_closure;
duke@435	113	}
duke@435	114
duke@435	115	ParScanWithBarrierClosure* _old_gen_closure;
duke@435	116	ParScanWithBarrierClosure* old_gen_closure () {
duke@435	117	return _old_gen_closure;
duke@435	118	}
duke@435	119	ParRootScanWithBarrierTwoGensClosure* _old_gen_root_closure;
duke@435	120	ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure () {
duke@435	121	return _old_gen_root_closure;
duke@435	122	}
duke@435	123
duke@435	124	ParNewGeneration* _par_gen;
duke@435	125	ParNewGeneration* par_gen() { return _par_gen; }
duke@435	126
duke@435	127	ObjToScanQueueSet* _task_queues;
duke@435	128	ObjToScanQueueSet* task_queues() { return _task_queues; }
duke@435	129
duke@435	130	ParallelTaskTerminator* _terminator;
duke@435	131	ParallelTaskTerminator* terminator() { return _terminator; }
coleenp@548	132	public:
duke@435	133	ParEvacuateFollowersClosure(
duke@435	134	ParScanThreadState* par_scan_state_,
duke@435	135	ParScanWithoutBarrierClosure* to_space_closure_,
duke@435	136	ParScanWithBarrierClosure* old_gen_closure_,
duke@435	137	ParRootScanWithoutBarrierClosure* to_space_root_closure_,
duke@435	138	ParNewGeneration* par_gen_,
duke@435	139	ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure_,
duke@435	140	ObjToScanQueueSet* task_queues_,
duke@435	141	ParallelTaskTerminator* terminator_);
coleenp@548	142	virtual void do_void();
duke@435	143	};