hotspot/src/share/vm/gc/g1/g1SATBCardTableModRefBS.inline.hpp
author kbarrett
Tue, 30 Aug 2016 23:48:16 -0400
changeset 40892 330a02d935ad
parent 35862 411842d0c882
permissions -rw-r--r--
8156500: Move Reference pending list into VM to prevent deadlocks Summary: Move reference pending list and locking into VM Reviewed-by: coleenp, dholmes, dcubed, mchung, plevart Contributed-by: kim.barrett@oracle.com, per.liden@oracle.com
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/*
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 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_VM_GC_G1_G1SATBCARDTABLEMODREFBS_INLINE_HPP
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#define SHARE_VM_GC_G1_G1SATBCARDTABLEMODREFBS_INLINE_HPP
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#include "gc/g1/g1SATBCardTableModRefBS.hpp"
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#include "oops/oop.inline.hpp"
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// We export this to make it available in cases where the static
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// type of the barrier set is known.  Note that it is non-virtual.
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template <class T> void G1SATBCardTableModRefBS::inline_write_ref_field_pre(T* field, oop newVal) {
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  T heap_oop = oopDesc::load_heap_oop(field);
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  if (!oopDesc::is_null(heap_oop)) {
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    enqueue(oopDesc::decode_heap_oop(heap_oop));
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  }
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}
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// These are the more general virtual versions.
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void G1SATBCardTableModRefBS::write_ref_field_pre_work(oop* field, oop new_val) {
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  inline_write_ref_field_pre(field, new_val);
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}
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void G1SATBCardTableModRefBS::write_ref_field_pre_work(narrowOop* field, oop new_val) {
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  inline_write_ref_field_pre(field, new_val);
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}
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void G1SATBCardTableModRefBS::set_card_claimed(size_t card_index) {
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  jbyte val = _byte_map[card_index];
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  if (val == clean_card_val()) {
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    val = (jbyte)claimed_card_val();
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  } else {
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    val |= (jbyte)claimed_card_val();
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  }
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  _byte_map[card_index] = val;
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}
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#endif // SHARE_VM_GC_G1_G1SATBCARDTABLEMODREFBS_INLINE_HPP