src/share/vm/memory/referenceProcessor.hpp
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*** old/src/share/vm/memory/referenceProcessor.hpp Mon Jun 2 16:10:28 2014
--- new/src/share/vm/memory/referenceProcessor.hpp Mon Jun 2 16:10:27 2014
*** 97,107 ****
--- 97,106 ----
oop _next;
HeapWord* _referent_addr;
oop _referent;
OopClosure* _keep_alive;
BoolObjectClosure* _is_alive;
bool _discovered_list_needs_post_barrier;
DEBUG_ONLY(
oop _first_seen; // cyclic linked list check
)
*** 111,122 ****
--- 110,120 ----
)
public:
inline DiscoveredListIterator(DiscoveredList& refs_list,
OopClosure* keep_alive,
! BoolObjectClosure* is_alive,
bool discovered_list_needs_post_barrier = false):
! BoolObjectClosure* is_alive):
_refs_list(refs_list),
_prev_next(refs_list.adr_head()),
_prev(NULL),
_ref(refs_list.head()),
#ifdef ASSERT
*** 126,137 ****
--- 124,134 ----
_processed(0),
_removed(0),
#endif
_next(NULL),
_keep_alive(keep_alive),
- _is_alive(is_alive),
_discovered_list_needs_post_barrier(discovered_list_needs_post_barrier)
{ }
// End Of List.
inline bool has_next() const { return _ref != NULL; }
*** 228,245 ****
--- 225,234 ----
bool _discovering_refs; // true when discovery enabled
bool _discovery_is_atomic; // if discovery is atomic wrt
// other collectors in configuration
bool _discovery_is_mt; // true if reference discovery is MT.
// If true, setting "next" field of a discovered refs list requires
// write post barrier. (Must be true if used in a collector in which
// elements of a discovered list may be moved during discovery: for
// example, a collector like Garbage-First that moves objects during a
// long-term concurrent marking phase that does weak reference
// discovery.)
bool _discovered_list_needs_post_barrier;
bool _enqueuing_is_done; // true if all weak references enqueued
bool _processing_is_mt; // true during phases when
// reference processing is MT.
uint _next_id; // round-robin mod _num_q counter in
// support of work distribution
*** 380,394 ****
--- 369,378 ----
const char* list_name(uint i);
void enqueue_discovered_reflists(HeapWord* pending_list_addr, AbstractRefProcTaskExecutor* task_executor);
protected:
// Set the 'discovered' field of the given reference to
// the given value - emitting post barriers depending upon
// the value of _discovered_list_needs_post_barrier.
void set_discovered(oop ref, oop value);
// "Preclean" the given discovered reference list
// by removing references with strongly reachable referents.
// Currently used in support of CMS only.
void preclean_discovered_reflist(DiscoveredList& refs_list,
BoolObjectClosure* is_alive,
*** 425,436 ****
--- 409,419 ----
// Default parameters give you a vanilla reference processor.
ReferenceProcessor(MemRegion span,
bool mt_processing = false, uint mt_processing_degree = 1,
bool mt_discovery = false, uint mt_discovery_degree = 1,
bool atomic_discovery = true,
! BoolObjectClosure* is_alive_non_header = NULL,
bool discovered_list_needs_post_barrier = false);
! BoolObjectClosure* is_alive_non_header = NULL);
// RefDiscoveryPolicy values
enum DiscoveryPolicy {
ReferenceBasedDiscovery = 0,
ReferentBasedDiscovery = 1,
src/share/vm/memory/referenceProcessor.hpp
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