jdk-sandbox: src/hotspot/share/gc/shared/modRefBarrierSet.hpp@fb0275c320a0 (annotated)

1 489c9b5090e2 Initial load duke parents: diff changeset	1	/*
47658 c2b7fb8e5144 8189355: Cleanup of BarrierSet barrier functions eosterlund parents: 47216 diff changeset	2	* Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
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5547 f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1388 diff changeset	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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1 489c9b5090e2 Initial load duke parents: diff changeset	22	*
489c9b5090e2 Initial load duke parents: diff changeset	23	*/
489c9b5090e2 Initial load duke parents: diff changeset	24
30764 fec48bf5a827 8079792: GC directory structure cleanup pliden parents: 29325 diff changeset	25	#ifndef SHARE_VM_GC_SHARED_MODREFBARRIERSET_HPP
fec48bf5a827 8079792: GC directory structure cleanup pliden parents: 29325 diff changeset	26	#define SHARE_VM_GC_SHARED_MODREFBARRIERSET_HPP
7397 5b173b4ca846 6989984: Use standard include model for Hospot stefank parents: 5547 diff changeset	27
30764 fec48bf5a827 8079792: GC directory structure cleanup pliden parents: 29325 diff changeset	28	#include "gc/shared/barrierSet.hpp"
47998 fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	29	#include "memory/memRegion.hpp"
7397 5b173b4ca846 6989984: Use standard include model for Hospot stefank parents: 5547 diff changeset	30
47998 fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	31	class Klass;
1 489c9b5090e2 Initial load duke parents: diff changeset	32
489c9b5090e2 Initial load duke parents: diff changeset	33	class ModRefBarrierSet: public BarrierSet {
489c9b5090e2 Initial load duke parents: diff changeset	34	protected:
29325 0e86e64c66e5 8069016: Add BarrierSet downcast support kbarrett parents: 28830 diff changeset	35	ModRefBarrierSet(const BarrierSet::FakeRtti& fake_rtti)
0e86e64c66e5 8069016: Add BarrierSet downcast support kbarrett parents: 28830 diff changeset	36	: BarrierSet(fake_rtti.add_tag(BarrierSet::ModRef)) { }
28830 a252e278c3d9 8064947: Clean up BarrierSet ctor/dtor jprovino parents: 27687 diff changeset	37	~ModRefBarrierSet() { }
a252e278c3d9 8064947: Clean up BarrierSet ctor/dtor jprovino parents: 27687 diff changeset	38
1 489c9b5090e2 Initial load duke parents: diff changeset	39	public:
47998 fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	40	template <DecoratorSet decorators, typename T>
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	41	inline void write_ref_field_pre(T* addr) {}
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	42
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	43	template <DecoratorSet decorators, typename T>
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	44	inline void write_ref_field_post(T *addr, oop new_value) {}
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	45
42598 45562c0473fb 8166898: G1SATBCardTableLoggingModRefBS::invalidate() incorrect with whole_heap == true lmesnik parents: 32612 diff changeset	46	// Causes all refs in "mr" to be assumed to be modified.
45562c0473fb 8166898: G1SATBCardTableLoggingModRefBS::invalidate() incorrect with whole_heap == true lmesnik parents: 32612 diff changeset	47	virtual void invalidate(MemRegion mr) = 0;
1 489c9b5090e2 Initial load duke parents: diff changeset	48
489c9b5090e2 Initial load duke parents: diff changeset	49	// The caller guarantees that "mr" contains no references. (Perhaps it's
489c9b5090e2 Initial load duke parents: diff changeset	50	// objects have been moved elsewhere.)
489c9b5090e2 Initial load duke parents: diff changeset	51	virtual void clear(MemRegion mr) = 0;
47998 fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	52
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	53	// The ModRef abstraction introduces pre and post barriers
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	54	template <DecoratorSet decorators, typename BarrierSetT>
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	55	class AccessBarrier: public BarrierSet::AccessBarrier<decorators, BarrierSetT> {
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	56	typedef BarrierSet::AccessBarrier<decorators, BarrierSetT> Raw;
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	57
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	58	public:
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	59	template <typename T>
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	60	static void oop_store_in_heap(T* addr, oop value);
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	61	template <typename T>
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	62	static oop oop_atomic_cmpxchg_in_heap(oop new_value, T* addr, oop compare_value);
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	63	template <typename T>
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	64	static oop oop_atomic_xchg_in_heap(oop new_value, T* addr);
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	65
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	66	template <typename T>
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	67	static bool oop_arraycopy_in_heap(arrayOop src_obj, arrayOop dst_obj, T* src, T* dst, size_t length);
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	68
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	69	static void clone_in_heap(oop src, oop dst, size_t size);
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	70
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	71	static void oop_store_in_heap_at(oop base, ptrdiff_t offset, oop value) {
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	72	oop_store_in_heap(AccessInternal::oop_field_addr<decorators>(base, offset), value);
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	73	}
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	74
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	75	static oop oop_atomic_xchg_in_heap_at(oop new_value, oop base, ptrdiff_t offset) {
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	76	return oop_atomic_xchg_in_heap(new_value, AccessInternal::oop_field_addr<decorators>(base, offset));
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	77	}
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	78
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	79	static oop oop_atomic_cmpxchg_in_heap_at(oop new_value, oop base, ptrdiff_t offset, oop compare_value) {
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	80	return oop_atomic_cmpxchg_in_heap(new_value, AccessInternal::oop_field_addr<decorators>(base, offset), compare_value);
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	81	}
fb0275c320a0 8189871: Refactor GC barriers to use declarative semantics eosterlund parents: 47658 diff changeset	82	};
1 489c9b5090e2 Initial load duke parents: diff changeset	83	};
7397 5b173b4ca846 6989984: Use standard include model for Hospot stefank parents: 5547 diff changeset	84
29325 0e86e64c66e5 8069016: Add BarrierSet downcast support kbarrett parents: 28830 diff changeset	85	template<>
0e86e64c66e5 8069016: Add BarrierSet downcast support kbarrett parents: 28830 diff changeset	86	struct BarrierSet::GetName<ModRefBarrierSet> {
0e86e64c66e5 8069016: Add BarrierSet downcast support kbarrett parents: 28830 diff changeset	87	static const BarrierSet::Name value = BarrierSet::ModRef;
0e86e64c66e5 8069016: Add BarrierSet downcast support kbarrett parents: 28830 diff changeset	88	};
0e86e64c66e5 8069016: Add BarrierSet downcast support kbarrett parents: 28830 diff changeset	89
30764 fec48bf5a827 8079792: GC directory structure cleanup pliden parents: 29325 diff changeset	90	#endif // SHARE_VM_GC_SHARED_MODREFBARRIERSET_HPP

author	eosterlund
	Mon, 20 Nov 2017 13:07:44 +0100
changeset 47998	fb0275c320a0
parent 47658	c2b7fb8e5144
child 48961	120b61d50f85
permissions	-rw-r--r--