26 #include "gc/g1/g1CollectedHeap.inline.hpp"
27 #include "gc/g1/g1SATBCardTableModRefBS.inline.hpp"
28 #include "gc/g1/heapRegion.hpp"
29 #include "gc/g1/satbMarkQueue.hpp"
30 #include "gc/shared/memset_with_concurrent_readers.hpp"
31 #include "logging/log.hpp"
32 #include "oops/oop.inline.hpp"
33 #include "runtime/atomic.hpp"
34 #include "runtime/mutexLocker.hpp"
35 #include "runtime/orderAccess.inline.hpp"
36 #include "runtime/thread.inline.hpp"
37
38 G1SATBCardTableModRefBS::G1SATBCardTableModRefBS(
39 MemRegion whole_heap,
40 const BarrierSet::FakeRtti& fake_rtti) :
41 CardTableModRefBS(whole_heap, fake_rtti.add_tag(BarrierSet::G1SATBCT))
42 { }
43
44 void G1SATBCardTableModRefBS::enqueue(oop pre_val) {
45 // Nulls should have been already filtered.
46 assert(pre_val->is_oop(true), "Error");
47
48 if (!JavaThread::satb_mark_queue_set().is_active()) return;
49 Thread* thr = Thread::current();
50 if (thr->is_Java_thread()) {
51 JavaThread* jt = (JavaThread*)thr;
52 jt->satb_mark_queue().enqueue(pre_val);
53 } else {
54 MutexLockerEx x(Shared_SATB_Q_lock, Mutex::_no_safepoint_check_flag);
55 JavaThread::satb_mark_queue_set().shared_satb_queue()->enqueue(pre_val);
56 }
57 }
58
59 template <class T> void
60 G1SATBCardTableModRefBS::write_ref_array_pre_work(T* dst, int count) {
61 if (!JavaThread::satb_mark_queue_set().is_active()) return;
62 T* elem_ptr = dst;
63 for (int i = 0; i < count; i++, elem_ptr++) {
64 T heap_oop = oopDesc::load_heap_oop(elem_ptr);
65 if (!oopDesc::is_null(heap_oop)) {
66 enqueue(oopDesc::decode_heap_oop_not_null(heap_oop));
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26 #include "gc/g1/g1CollectedHeap.inline.hpp"
27 #include "gc/g1/g1SATBCardTableModRefBS.inline.hpp"
28 #include "gc/g1/heapRegion.hpp"
29 #include "gc/g1/satbMarkQueue.hpp"
30 #include "gc/shared/memset_with_concurrent_readers.hpp"
31 #include "logging/log.hpp"
32 #include "oops/oop.inline.hpp"
33 #include "runtime/atomic.hpp"
34 #include "runtime/mutexLocker.hpp"
35 #include "runtime/orderAccess.inline.hpp"
36 #include "runtime/thread.inline.hpp"
37
38 G1SATBCardTableModRefBS::G1SATBCardTableModRefBS(
39 MemRegion whole_heap,
40 const BarrierSet::FakeRtti& fake_rtti) :
41 CardTableModRefBS(whole_heap, fake_rtti.add_tag(BarrierSet::G1SATBCT))
42 { }
43
44 void G1SATBCardTableModRefBS::enqueue(oop pre_val) {
45 // Nulls should have been already filtered.
46 assert(oopDesc::is_oop(pre_val, true), "Error");
47
48 if (!JavaThread::satb_mark_queue_set().is_active()) return;
49 Thread* thr = Thread::current();
50 if (thr->is_Java_thread()) {
51 JavaThread* jt = (JavaThread*)thr;
52 jt->satb_mark_queue().enqueue(pre_val);
53 } else {
54 MutexLockerEx x(Shared_SATB_Q_lock, Mutex::_no_safepoint_check_flag);
55 JavaThread::satb_mark_queue_set().shared_satb_queue()->enqueue(pre_val);
56 }
57 }
58
59 template <class T> void
60 G1SATBCardTableModRefBS::write_ref_array_pre_work(T* dst, int count) {
61 if (!JavaThread::satb_mark_queue_set().is_active()) return;
62 T* elem_ptr = dst;
63 for (int i = 0; i < count; i++, elem_ptr++) {
64 T heap_oop = oopDesc::load_heap_oop(elem_ptr);
65 if (!oopDesc::is_null(heap_oop)) {
66 enqueue(oopDesc::decode_heap_oop_not_null(heap_oop));
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