archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-17 09:34:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8066827: Remove ReferenceProcessor::clean_up_discovered_references()

Browse source 
Abandon rather than clean up discovered references.

Reviewed-by: jmasa, ysr
This commit is contained in:
Kim Barrett 2014-12-17 22:32:44 -05:00
parent c40b1dd803
commit 093d2698fc
9 changed files with 22 additions and 81 deletions
Download patch file Download diff file Expand all files Collapse all files

17
hotspot/src/share/vm/memory/referenceProcessor.hpp
View file

@ -353,19 +353,6 @@ class ReferenceProcessor : public CHeapObj<mtGC> {
GCTimer* gc_timer,
GCId gc_id);
// Delete entries in the discovered lists that have
// either a null referent or are not active. Such
// Reference objects can result from the clearing
// or enqueueing of Reference objects concurrent
// with their discovery by a (concurrent) collector.
// For a definition of "active" see java.lang.ref.Reference;
// Refs are born active, become inactive when enqueued,
// and never become active again. The state of being
// active is encoded as follows: A Ref is active
// if and only if its "next" field is NULL.
void clean_up_discovered_references();
void clean_up_discovered_reflist(DiscoveredList& refs_list);
// Returns the name of the discovered reference list
// occupying the i / _num_q slot.
const char* list_name(uint i);
@ -439,7 +426,7 @@ class ReferenceProcessor : public CHeapObj<mtGC> {
void set_span(MemRegion span) { _span = span; }
// start and stop weak ref discovery
void enable_discovery(bool verify_disabled, bool check_no_refs);
void enable_discovery(bool check_no_refs = true);
void disable_discovery() { _discovering_refs = false; }
bool discovery_enabled() { return _discovering_refs; }
@ -517,7 +504,7 @@ class NoRefDiscovery: StackObj {
~NoRefDiscovery() {
if (_was_discovering_refs) {
_rp->enable_discovery(true /*verify_disabled*/, false /*check_no_refs*/);
_rp->enable_discovery(false /*check_no_refs*/);
}
}
};