1 /* 2 * Copyright (c) 2017, 2021, 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_GC_G1_G1FULLGCOOPCLOSURES_INLINE_HPP 26 #define SHARE_GC_G1_G1FULLGCOOPCLOSURES_INLINE_HPP 27 28 #include "gc/g1/g1FullGCOopClosures.hpp" 29 30 #include "gc/g1/g1Allocator.inline.hpp" 31 #include "gc/g1/g1FullCollector.inline.hpp" 32 #include "gc/g1/g1ConcurrentMarkBitMap.inline.hpp" 33 #include "gc/g1/g1FullGCMarker.inline.hpp" 34 #include "gc/g1/heapRegionRemSet.inline.hpp" 35 #include "memory/iterator.inline.hpp" 36 #include "memory/universe.hpp" 37 #include "oops/access.inline.hpp" 38 #include "oops/compressedOops.inline.hpp" 39 #include "oops/oop.inline.hpp" 40 41 template <typename T> 42 inline void G1MarkAndPushClosure::do_oop_work(T* p) { 43 _marker->mark_and_push(p); 44 } 45 46 inline void G1MarkAndPushClosure::do_oop(oop* p) { 47 do_oop_work(p); 48 } 49 50 inline void G1MarkAndPushClosure::do_oop(narrowOop* p) { 51 do_oop_work(p); 52 } 53 54 inline bool G1MarkAndPushClosure::do_metadata() { 55 return true; 56 } 57 58 inline void G1MarkAndPushClosure::do_klass(Klass* k) { 59 _marker->follow_klass(k); 60 } 61 62 inline void G1MarkAndPushClosure::do_cld(ClassLoaderData* cld) { 63 _marker->follow_cld(cld); 64 } 65 66 template <class T> inline void G1AdjustClosure::adjust_pointer(T* p) { 67 T heap_oop = RawAccess<>::oop_load(p); 68 if (CompressedOops::is_null(heap_oop)) { 69 return; 70 } 71 72 oop obj = CompressedOops::decode_not_null(heap_oop); 73 assert(Universe::heap()->is_in(obj), "should be in heap"); 74 if (!_collector->is_compacting(obj)) { 75 // We never forward objects in non-compacting regions so there is no need to 76 // process them further. 77 return; 78 } 79 80 if (obj->is_forwarded()) { 81 oop forwardee = obj->forwardee(); 82 // Forwarded, just update. 83 assert(G1CollectedHeap::heap()->is_in_reserved(forwardee), "should be in object space"); 84 RawAccess<IS_NOT_NULL>::oop_store(p, forwardee); 85 } 86 87 } 88 89 inline void G1AdjustClosure::do_oop(oop* p) { do_oop_work(p); } 90 inline void G1AdjustClosure::do_oop(narrowOop* p) { do_oop_work(p); } 91 92 inline bool G1IsAliveClosure::do_object_b(oop p) { 93 return _bitmap->is_marked(p) || _collector->is_skip_marking(p); 94 } 95 96 template<typename T> 97 inline void G1FullKeepAliveClosure::do_oop_work(T* p) { 98 _marker->mark_and_push(p); 99 } 100 101 #endif // SHARE_GC_G1_G1FULLGCOOPCLOSURES_INLINE_HPP