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src/share/vm/gc_implementation/parNew/parOopClosures.hpp@710a3c8b516e (annotated)

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

Tue, 08 Aug 2017 15:57:29 +0800

author

aoqi

date

Tue, 08 Aug 2017 15:57:29 +0800

changeset 6876

710a3c8b516e

parent 5515

9766f73e770d

parent 0

f90c822e73f8

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#ifndef SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP
aoqi@0	26	#define SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP
aoqi@0	27
aoqi@0	28	#include "memory/genOopClosures.hpp"
aoqi@0	29	#include "memory/padded.hpp"
aoqi@0	30
aoqi@0	31	// Closures for ParNewGeneration
aoqi@0	32
aoqi@0	33	class ParScanThreadState;
aoqi@0	34	class ParNewGeneration;
aoqi@0	35	typedef Padded<OopTaskQueue> ObjToScanQueue;
aoqi@0	36	typedef GenericTaskQueueSet<ObjToScanQueue, mtGC> ObjToScanQueueSet;
aoqi@0	37	class ParallelTaskTerminator;
aoqi@0	38
aoqi@0	39	class ParScanClosure: public OopsInKlassOrGenClosure {
aoqi@0	40	protected:
aoqi@0	41	ParScanThreadState* _par_scan_state;
aoqi@0	42	ParNewGeneration* _g;
aoqi@0	43	HeapWord* _boundary;
aoqi@0	44	template <class T> void inline par_do_barrier(T* p);
aoqi@0	45	template <class T> void inline do_oop_work(T* p,
aoqi@0	46	bool gc_barrier,
aoqi@0	47	bool root_scan);
aoqi@0	48	public:
aoqi@0	49	ParScanClosure(ParNewGeneration* g, ParScanThreadState* par_scan_state);
aoqi@0	50	};
aoqi@0	51
aoqi@0	52	class ParScanWithBarrierClosure: public ParScanClosure {
aoqi@0	53	public:
aoqi@0	54	ParScanWithBarrierClosure(ParNewGeneration* g,
aoqi@0	55	ParScanThreadState* par_scan_state) :
aoqi@0	56	ParScanClosure(g, par_scan_state) {}
aoqi@0	57	virtual void do_oop(oop* p);
aoqi@0	58	virtual void do_oop(narrowOop* p);
aoqi@0	59	inline void do_oop_nv(oop* p);
aoqi@0	60	inline void do_oop_nv(narrowOop* p);
aoqi@0	61	};
aoqi@0	62
aoqi@0	63	class ParScanWithoutBarrierClosure: public ParScanClosure {
aoqi@0	64	public:
aoqi@0	65	ParScanWithoutBarrierClosure(ParNewGeneration* g,
aoqi@0	66	ParScanThreadState* par_scan_state) :
aoqi@0	67	ParScanClosure(g, par_scan_state) {}
aoqi@0	68	virtual void do_oop(oop* p);
aoqi@0	69	virtual void do_oop(narrowOop* p);
aoqi@0	70	inline void do_oop_nv(oop* p);
aoqi@0	71	inline void do_oop_nv(narrowOop* p);
aoqi@0	72	};
aoqi@0	73
aoqi@0	74	class ParRootScanWithBarrierTwoGensClosure: public ParScanClosure {
aoqi@0	75	public:
aoqi@0	76	ParRootScanWithBarrierTwoGensClosure(ParNewGeneration* g,
aoqi@0	77	ParScanThreadState* par_scan_state) :
aoqi@0	78	ParScanClosure(g, par_scan_state) {}
aoqi@0	79	virtual void do_oop(oop* p);
aoqi@0	80	virtual void do_oop(narrowOop* p);
aoqi@0	81	};
aoqi@0	82
aoqi@0	83	class ParRootScanWithoutBarrierClosure: public ParScanClosure {
aoqi@0	84	public:
aoqi@0	85	ParRootScanWithoutBarrierClosure(ParNewGeneration* g,
aoqi@0	86	ParScanThreadState* par_scan_state) :
aoqi@0	87	ParScanClosure(g, par_scan_state) {}
aoqi@0	88	virtual void do_oop(oop* p);
aoqi@0	89	virtual void do_oop(narrowOop* p);
aoqi@0	90	};
aoqi@0	91
aoqi@0	92	class ParScanWeakRefClosure: public ScanWeakRefClosure {
aoqi@0	93	protected:
aoqi@0	94	ParScanThreadState* _par_scan_state;
aoqi@0	95	template <class T> inline void do_oop_work(T* p);
aoqi@0	96	public:
aoqi@0	97	ParScanWeakRefClosure(ParNewGeneration* g,
aoqi@0	98	ParScanThreadState* par_scan_state);
aoqi@0	99	virtual void do_oop(oop* p);
aoqi@0	100	virtual void do_oop(narrowOop* p);
aoqi@0	101	inline void do_oop_nv(oop* p);
aoqi@0	102	inline void do_oop_nv(narrowOop* p);
aoqi@0	103	};
aoqi@0	104
aoqi@0	105	class ParEvacuateFollowersClosure: public VoidClosure {
aoqi@0	106	private:
aoqi@0	107	ParScanThreadState* _par_scan_state;
aoqi@0	108	ParScanThreadState* par_scan_state() { return _par_scan_state; }
aoqi@0	109
aoqi@0	110	// We want to preserve the specific types here (rather than "OopClosure")
aoqi@0	111	// for later de-virtualization of do_oop calls.
aoqi@0	112	ParScanWithoutBarrierClosure* _to_space_closure;
aoqi@0	113	ParScanWithoutBarrierClosure* to_space_closure() {
aoqi@0	114	return _to_space_closure;
aoqi@0	115	}
aoqi@0	116	ParRootScanWithoutBarrierClosure* _to_space_root_closure;
aoqi@0	117	ParRootScanWithoutBarrierClosure* to_space_root_closure() {
aoqi@0	118	return _to_space_root_closure;
aoqi@0	119	}
aoqi@0	120
aoqi@0	121	ParScanWithBarrierClosure* _old_gen_closure;
aoqi@0	122	ParScanWithBarrierClosure* old_gen_closure () {
aoqi@0	123	return _old_gen_closure;
aoqi@0	124	}
aoqi@0	125	ParRootScanWithBarrierTwoGensClosure* _old_gen_root_closure;
aoqi@0	126	ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure () {
aoqi@0	127	return _old_gen_root_closure;
aoqi@0	128	}
aoqi@0	129
aoqi@0	130	ParNewGeneration* _par_gen;
aoqi@0	131	ParNewGeneration* par_gen() { return _par_gen; }
aoqi@0	132
aoqi@0	133	ObjToScanQueueSet* _task_queues;
aoqi@0	134	ObjToScanQueueSet* task_queues() { return _task_queues; }
aoqi@0	135
aoqi@0	136	ParallelTaskTerminator* _terminator;
aoqi@0	137	ParallelTaskTerminator* terminator() { return _terminator; }
aoqi@0	138	public:
aoqi@0	139	ParEvacuateFollowersClosure(
aoqi@0	140	ParScanThreadState* par_scan_state_,
aoqi@0	141	ParScanWithoutBarrierClosure* to_space_closure_,
aoqi@0	142	ParScanWithBarrierClosure* old_gen_closure_,
aoqi@0	143	ParRootScanWithoutBarrierClosure* to_space_root_closure_,
aoqi@0	144	ParNewGeneration* par_gen_,
aoqi@0	145	ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure_,
aoqi@0	146	ObjToScanQueueSet* task_queues_,
aoqi@0	147	ParallelTaskTerminator* terminator_);
aoqi@0	148	virtual void do_void();
aoqi@0	149	};
aoqi@0	150
aoqi@0	151	#endif // SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP