6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "gc_implementation/g1/concurrentMark.inline.hpp"
27 #include "gc_implementation/g1/dirtyCardQueue.hpp"
28 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
29 #include "gc_implementation/g1/g1EvacFailure.hpp"
30 #include "gc_implementation/g1/g1_globals.hpp"
31 #include "gc_implementation/g1/g1OopClosures.inline.hpp"
32 #include "gc_implementation/g1/heapRegion.hpp"
33 #include "gc_implementation/g1/heapRegionRemSet.hpp"
34
35 class UpdateRSetDeferred : public OopsInHeapRegionClosure {
36 private:
37 G1CollectedHeap* _g1;
38 DirtyCardQueue *_dcq;
39 G1SATBCardTableModRefBS* _ct_bs;
40
41 public:
42 UpdateRSetDeferred(G1CollectedHeap* g1, DirtyCardQueue* dcq) :
43 _g1(g1), _ct_bs(_g1->g1_barrier_set()), _dcq(dcq) {}
44
45 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
46 virtual void do_oop( oop* p) { do_oop_work(p); }
47 template <class T> void do_oop_work(T* p) {
48 assert(_from->is_in_reserved(p), "paranoia");
49 if (!_from->is_in_reserved(oopDesc::load_decode_heap_oop(p)) &&
50 !_from->is_survivor()) {
51 size_t card_index = _ct_bs->index_for(p);
52 if (_ct_bs->mark_card_deferred(card_index)) {
53 _dcq->enqueue((jbyte*)_ct_bs->byte_for_index(card_index));
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6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "gc/g1/concurrentMark.inline.hpp"
27 #include "gc/g1/dirtyCardQueue.hpp"
28 #include "gc/g1/g1CollectedHeap.inline.hpp"
29 #include "gc/g1/g1EvacFailure.hpp"
30 #include "gc/g1/g1OopClosures.inline.hpp"
31 #include "gc/g1/g1_globals.hpp"
32 #include "gc/g1/heapRegion.hpp"
33 #include "gc/g1/heapRegionRemSet.hpp"
34
35 class UpdateRSetDeferred : public OopsInHeapRegionClosure {
36 private:
37 G1CollectedHeap* _g1;
38 DirtyCardQueue *_dcq;
39 G1SATBCardTableModRefBS* _ct_bs;
40
41 public:
42 UpdateRSetDeferred(G1CollectedHeap* g1, DirtyCardQueue* dcq) :
43 _g1(g1), _ct_bs(_g1->g1_barrier_set()), _dcq(dcq) {}
44
45 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
46 virtual void do_oop( oop* p) { do_oop_work(p); }
47 template <class T> void do_oop_work(T* p) {
48 assert(_from->is_in_reserved(p), "paranoia");
49 if (!_from->is_in_reserved(oopDesc::load_decode_heap_oop(p)) &&
50 !_from->is_survivor()) {
51 size_t card_index = _ct_bs->index_for(p);
52 if (_ct_bs->mark_card_deferred(card_index)) {
53 _dcq->enqueue((jbyte*)_ct_bs->byte_for_index(card_index));
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