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 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1PARSCANTHREADSTATE_INLINE_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1PARSCANTHREADSTATE_INLINE_HPP 27 28 #include "gc_implementation/g1/g1ParScanThreadState.hpp" 29 #include "gc_implementation/g1/g1RemSet.inline.hpp" 30 #include "oops/oop.inline.hpp" 31 32 template <class T> inline void G1ParScanThreadState::immediate_rs_update(HeapRegion* from, T* p, int tid) { 33 if (!from->is_survivor()) { 34 _g1_rem->par_write_ref(from, p, tid); 35 } 36 } 37 38 template <class T> void G1ParScanThreadState::update_rs(HeapRegion* from, T* p, int tid) { 39 if (G1DeferredRSUpdate) { 40 deferred_rs_update(from, p, tid); 41 } else { 42 immediate_rs_update(from, p, tid); 43 } 44 } 45 46 template <class T> void G1ParScanThreadState::do_oop_evac(T* p, HeapRegion* from) { 47 assert(!oopDesc::is_null(oopDesc::load_decode_heap_oop(p)), 48 "Reference should not be NULL here as such are never pushed to the task queue."); 49 oop obj = oopDesc::load_decode_heap_oop_not_null(p); 50 51 // Although we never intentionally push references outside of the collection 52 // set, due to (benign) races in the claim mechanism during RSet scanning more 53 // than one thread might claim the same card. So the same card may be 54 // processed multiple times. So redo this check. 55 G1CollectedHeap::in_cset_state_t in_cset_state = _g1h->in_cset_state(obj); 56 if (in_cset_state == G1CollectedHeap::InCSet) { 57 oop forwardee; 58 if (obj->is_forwarded()) { | 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 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1PARSCANTHREADSTATE_INLINE_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1PARSCANTHREADSTATE_INLINE_HPP 27 28 #include "gc_implementation/g1/g1ParScanThreadState.hpp" 29 #include "gc_implementation/g1/g1RemSet.inline.hpp" 30 #include "oops/oop.inline.hpp" 31 32 template <class T> inline void G1ParScanThreadState::immediate_rs_update(HeapRegion* from, T* p, uint tid) { 33 if (!from->is_survivor()) { 34 _g1_rem->par_write_ref(from, p, tid); 35 } 36 } 37 38 template <class T> void G1ParScanThreadState::update_rs(HeapRegion* from, T* p, uint tid) { 39 if (G1DeferredRSUpdate) { 40 deferred_rs_update(from, p, tid); 41 } else { 42 immediate_rs_update(from, p, tid); 43 } 44 } 45 46 template <class T> void G1ParScanThreadState::do_oop_evac(T* p, HeapRegion* from) { 47 assert(!oopDesc::is_null(oopDesc::load_decode_heap_oop(p)), 48 "Reference should not be NULL here as such are never pushed to the task queue."); 49 oop obj = oopDesc::load_decode_heap_oop_not_null(p); 50 51 // Although we never intentionally push references outside of the collection 52 // set, due to (benign) races in the claim mechanism during RSet scanning more 53 // than one thread might claim the same card. So the same card may be 54 // processed multiple times. So redo this check. 55 G1CollectedHeap::in_cset_state_t in_cset_state = _g1h->in_cset_state(obj); 56 if (in_cset_state == G1CollectedHeap::InCSet) { 57 oop forwardee; 58 if (obj->is_forwarded()) { |