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src/hotspot/share/gc/shared/referenceProcessor.hpp
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rev 49831 : imported patch 8201492-properly-implement-non-contiguous-reference-processing
rev 49834 : [mq]: 8202021-cleanup-referenceprocessor
rev 49835 : [mq]: 8202021-stefanj-review
@@ -76,15 +76,17 @@
class DiscoveredListIterator {
private:
DiscoveredList& _refs_list;
HeapWord* _prev_discovered_addr;
oop _prev_discovered;
- oop _ref;
- HeapWord* _discovered_addr;
+ oop _current_discovered;
+ HeapWord* _current_discovered_addr;
oop _next_discovered;
+
HeapWord* _referent_addr;
oop _referent;
+
OopClosure* _keep_alive;
BoolObjectClosure* _is_alive;
DEBUG_ONLY(
oop _first_seen; // cyclic linked list check
@@ -99,14 +101,14 @@
inline DiscoveredListIterator(DiscoveredList& refs_list,
OopClosure* keep_alive,
BoolObjectClosure* is_alive);
// End Of List.
- inline bool has_next() const { return _ref != NULL; }
+ inline bool has_next() const { return _current_discovered != NULL; }
// Get oop to the Reference object.
- inline oop obj() const { return _ref; }
+ inline oop obj() const { return _current_discovered; }
// Get oop to the referent object.
inline oop referent() const { return _referent; }
// Returns true if referent is alive.
@@ -121,12 +123,12 @@
// discovery concurrently, or interleaved, with mutator execution.
void load_ptrs(DEBUG_ONLY(bool allow_null_referent));
// Move to the next discovered reference.
inline void next() {
- _prev_discovered_addr = _discovered_addr;
- _prev_discovered = _ref;
+ _prev_discovered_addr = _current_discovered_addr;
+ _prev_discovered = _current_discovered;
move_to_next();
}
// Remove the current reference from the list
void remove();
@@ -148,17 +150,17 @@
inline size_t processed() const { return _processed; }
inline size_t removed() const { return _removed; }
)
inline void move_to_next() {
- if (_ref == _next_discovered) {
+ if (_current_discovered == _next_discovered) {
// End of the list.
- _ref = NULL;
+ _current_discovered = NULL;
} else {
- _ref = _next_discovered;
+ _current_discovered = _next_discovered;
}
- assert(_ref != _first_seen, "cyclic ref_list found");
+ assert(_current_discovered != _first_seen, "cyclic ref_list found");
NOT_PRODUCT(_processed++);
}
};
class ReferenceProcessor : public CHeapObj<mtGC> {
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