1 /* 2 * Copyright (c) 2016, 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_REFERENCEPROCESSOR_INLINE_HPP 26 #define SHARE_VM_GC_SHARED_REFERENCEPROCESSOR_INLINE_HPP 27 28 #include "gc/shared/referenceProcessor.hpp" 29 #include "oops/compressedOops.inline.hpp" 30 #include "oops/oop.hpp" 31 32 oop DiscoveredList::head() const { 33 return UseCompressedOops ? CompressedOops::decode(_compressed_head) : 34 _oop_head; 35 } 36 37 void DiscoveredList::set_head(oop o) { 38 if (UseCompressedOops) { 39 // Must compress the head ptr. 40 _compressed_head = CompressedOops::encode(o); 41 } else { 42 _oop_head = o; 43 } 44 } 45 46 bool DiscoveredList::is_empty() const { 47 return head() == NULL; 48 } 49 50 DiscoveredListIterator::DiscoveredListIterator(DiscoveredList& refs_list, 51 OopClosure* keep_alive, 52 BoolObjectClosure* is_alive): 53 _refs_list(refs_list), 54 _prev_next(refs_list.adr_head()), 55 _prev(NULL), 56 _ref(refs_list.head()), 57 #ifdef ASSERT 58 _first_seen(refs_list.head()), 59 #endif 60 #ifndef PRODUCT 61 _processed(0), 62 _removed(0), 63 #endif 64 _next(NULL), 65 _keep_alive(keep_alive), 66 _is_alive(is_alive) { 67 } 68 69 #endif // SHARE_VM_GC_SHARED_REFERENCEPROCESSOR_INLINE_HPP