1 /* 2 * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 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 #ifndef SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP 26 #define SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP 27 28 #include "gc/shared/cardTableBarrierSet.hpp" 29 #include "gc/shared/cardTable.hpp" 30 #include "runtime/orderAccess.inline.hpp" 31 32 template <DecoratorSet decorators, typename T> 33 inline void CardTableBarrierSet::write_ref_field_post(T* field, oop newVal) { 34 volatile jbyte* byte = _card_table->byte_for(field); 35 if (UseConcMarkSweepGC) { 36 // Perform a releasing store if using CMS so that it may 37 // scan and clear the cards concurrently during pre-cleaning. 38 OrderAccess::release_store(byte, CardTable::dirty_card_val()); 39 } else { 40 *byte = CardTable::dirty_card_val(); 41 } 42 } 43 44 #endif // SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP