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src/hotspot/share/gc/shared/cardTableBarrierSet.inline.hpp

8202083_CMS_cleanup_runtime

14  * You should have received a copy of the GNU General Public License version                                                         
15  * 2 along with this work; if not, write to the Free Software Foundation,                                                            
16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.                                                                     
17  *                                                                                                                                   
18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA                                                           
19  * or visit www.oracle.com if you need additional information or have any                                                            
20  * questions.                                                                                                                        
21  *                                                                                                                                   
22  */                                                                                                                                  
23 
24 #ifndef SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP                                                                            
25 #define SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP                                                                            
26 
27 #include "gc/shared/cardTableBarrierSet.hpp"                                                                                         
28 #include "gc/shared/cardTable.hpp"                                                                                                   
29 #include "runtime/orderAccess.inline.hpp"                                                                                            
30 
31 template <DecoratorSet decorators, typename T>                                                                                       
32 inline void CardTableBarrierSet::write_ref_field_post(T* field, oop newVal) {                                                        
33   volatile jbyte* byte = _card_table->byte_for(field);                                                                               
34   if (UseConcMarkSweepGC) {                                                                                                          
35     // Perform a releasing store if using CMS so that it may                                                                         
36     // scan and clear the cards concurrently during pre-cleaning.                                                                    
37     OrderAccess::release_store(byte, CardTable::dirty_card_val());                                                                   
38   } else {                                                                                                                           
39     *byte = CardTable::dirty_card_val();                                                                                             
40   }                                                                                                                                  
41 }                                                                                                                                    
42 
43 #endif // SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP                                                                          

14  * You should have received a copy of the GNU General Public License version
15  * 2 along with this work; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17  *
18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19  * or visit www.oracle.com if you need additional information or have any
20  * questions.
21  *
22  */
23 
24 #ifndef SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
25 #define SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
26 
27 #include "gc/shared/cardTableBarrierSet.hpp"
28 #include "gc/shared/cardTable.hpp"
29 #include "runtime/orderAccess.inline.hpp"
30 
31 template <DecoratorSet decorators, typename T>
32 inline void CardTableBarrierSet::write_ref_field_post(T* field, oop newVal) {
33   volatile jbyte* byte = _card_table->byte_for(field);
34   if (_card_table->scanned_concurrently()) {
35     // Perform a releasing store if using CMS so that it may
36     // scan and clear the cards concurrently during pre-cleaning.
37     OrderAccess::release_store(byte, CardTable::dirty_card_val());
38   } else {
39     *byte = CardTable::dirty_card_val();
40   }
41 }
42 
43 #endif // SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
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