89 void flush_deferred_card_mark_barrier(JavaThread* thread);
90
91 // If a compiler is eliding store barriers for TLAB-allocated objects,
92 // we will be informed of a slow-path allocation by a call
93 // to on_slowpath_allocation_exit() below. Such a call precedes the
94 // initialization of the object itself, and no post-store-barriers will
95 // be issued. Some heap types require that the barrier strictly follows
96 // the initializing stores. (This is currently implemented by deferring the
97 // barrier until the next slow-path allocation or gc-related safepoint.)
98 // This interface answers whether a particular barrier type needs the card
99 // mark to be thus strictly sequenced after the stores.
100 virtual bool card_mark_must_follow_store() const;
101
102 virtual void on_slowpath_allocation_exit(JavaThread* thread, oop new_obj);
103 virtual void on_thread_detach(Thread* thread);
104
105 virtual void make_parsable(JavaThread* thread) { flush_deferred_card_mark_barrier(thread); }
106
107 virtual void print_on(outputStream* st) const;
108
109 template <DecoratorSet decorators, typename BarrierSetT = CardTableBarrierSet>
110 class AccessBarrier: public ModRefBarrierSet::AccessBarrier<decorators, BarrierSetT> {};
111 };
112
113 template<>
114 struct BarrierSet::GetName<CardTableBarrierSet> {
115 static const BarrierSet::Name value = BarrierSet::CardTableBarrierSet;
116 };
117
118 template<>
119 struct BarrierSet::GetType<BarrierSet::CardTableBarrierSet> {
120 typedef ::CardTableBarrierSet type;
121 };
122
123 #endif // SHARE_GC_SHARED_CARDTABLEBARRIERSET_HPP
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89 void flush_deferred_card_mark_barrier(JavaThread* thread);
90
91 // If a compiler is eliding store barriers for TLAB-allocated objects,
92 // we will be informed of a slow-path allocation by a call
93 // to on_slowpath_allocation_exit() below. Such a call precedes the
94 // initialization of the object itself, and no post-store-barriers will
95 // be issued. Some heap types require that the barrier strictly follows
96 // the initializing stores. (This is currently implemented by deferring the
97 // barrier until the next slow-path allocation or gc-related safepoint.)
98 // This interface answers whether a particular barrier type needs the card
99 // mark to be thus strictly sequenced after the stores.
100 virtual bool card_mark_must_follow_store() const;
101
102 virtual void on_slowpath_allocation_exit(JavaThread* thread, oop new_obj);
103 virtual void on_thread_detach(Thread* thread);
104
105 virtual void make_parsable(JavaThread* thread) { flush_deferred_card_mark_barrier(thread); }
106
107 virtual void print_on(outputStream* st) const;
108
109 // The AOT code cache manager needs to know the current card shift
110 // and, for some barrier sets, the region grain size shift
111 uint card_shift() const { return _card_table->card_shift(); }
112 virtual uint grain_shift() { return 0; }
113
114 template <DecoratorSet decorators, typename BarrierSetT = CardTableBarrierSet>
115 class AccessBarrier: public ModRefBarrierSet::AccessBarrier<decorators, BarrierSetT> {};
116 };
117
118 template<>
119 struct BarrierSet::GetName<CardTableBarrierSet> {
120 static const BarrierSet::Name value = BarrierSet::CardTableBarrierSet;
121 };
122
123 template<>
124 struct BarrierSet::GetType<BarrierSet::CardTableBarrierSet> {
125 typedef ::CardTableBarrierSet type;
126 };
127
128 #endif // SHARE_GC_SHARED_CARDTABLEBARRIERSET_HPP
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