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8248391: Unify handling of all OopStorage instances in weak root processing

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OopStorage instance now owned by subsystems, and generalize dead entry notification

Co-authored-by: Erik Osterlund <erik.osterlund@oracle.com>
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Reviewed-by: coleenp, tschatzl
This commit is contained in:
Kim Barrett 2020-07-16 17:41:14 -04:00
parent 55af701cc3
commit a8d6a05ce8
42 changed files with 822 additions and 574 deletions
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13
src/hotspot/share/gc/shared/oopStorageParState.hpp
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@ -133,6 +133,7 @@ class OopStorage::BasicParState {
volatile size_t _next_block;
uint _estimated_thread_count;
bool _concurrent;
volatile size_t _num_dead;
NONCOPYABLE(BasicParState);
@ -156,6 +157,10 @@ public:
template<bool is_const, typename F> void iterate(F f);
static uint default_estimated_thread_count(bool concurrent);
size_t num_dead() const;
void increment_num_dead(size_t num_dead);
void report_num_dead() const;
};
template<bool concurrent, bool is_const>
@ -175,6 +180,10 @@ public:
const OopStorage* storage() const { return _basic_state.storage(); }
template<typename F> void iterate(F f);
template<typename Closure> void oops_do(Closure* cl);
size_t num_dead() const { return _basic_state.num_dead(); }
void increment_num_dead(size_t num_dead) { _basic_state.increment_num_dead(num_dead); }
void report_num_dead() const { _basic_state.report_num_dead(); }
};
template<>
@ -193,6 +202,10 @@ public:
template<typename Closure> void weak_oops_do(Closure* cl);
template<typename IsAliveClosure, typename Closure>
void weak_oops_do(IsAliveClosure* is_alive, Closure* cl);
size_t num_dead() const { return _basic_state.num_dead(); }
void increment_num_dead(size_t num_dead) { _basic_state.increment_num_dead(num_dead); }
void report_num_dead() const { _basic_state.report_num_dead(); }
};
#endif // SHARE_GC_SHARED_OOPSTORAGEPARSTATE_HPP