author | sjohanss |
Tue, 14 Nov 2017 11:33:23 +0100 | |
changeset 47885 | 5caa1d5f74c1 |
child 49592 | 77fb0be7d19f |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2017, 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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|
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#ifndef SHARE_VM_GC_G1_G1FULLGCOOPCLOSURES_INLINE_HPP |
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#define SHARE_VM_GC_G1_G1FULLGCOOPCLOSURES_INLINE_HPP |
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|
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#include "gc/g1/g1Allocator.hpp" |
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#include "gc/g1/g1ConcurrentMarkBitMap.inline.hpp" |
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#include "gc/g1/g1FullGCMarker.inline.hpp" |
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#include "gc/g1/g1FullGCOopClosures.hpp" |
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#include "gc/g1/heapRegionRemSet.hpp" |
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#include "memory/iterator.inline.hpp" |
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|
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template <typename T> |
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inline void G1MarkAndPushClosure::do_oop_nv(T* p) { |
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_marker->mark_and_push(p); |
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} |
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inline bool G1MarkAndPushClosure::do_metadata_nv() { |
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return true; |
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} |
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|
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inline void G1MarkAndPushClosure::do_klass_nv(Klass* k) { |
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_marker->follow_klass(k); |
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} |
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|
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inline void G1MarkAndPushClosure::do_cld_nv(ClassLoaderData* cld) { |
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_marker->follow_cld(cld); |
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} |
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template <class T> inline oop G1AdjustClosure::adjust_pointer(T* p) { |
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T heap_oop = oopDesc::load_heap_oop(p); |
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if (oopDesc::is_null(heap_oop)) { |
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// NULL reference, return NULL. |
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return NULL; |
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} |
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|
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oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); |
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assert(Universe::heap()->is_in(obj), "should be in heap"); |
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if (G1ArchiveAllocator::is_archive_object(obj)) { |
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// Never forwarding archive objects, return current reference. |
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return obj; |
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} |
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oop forwardee = obj->forwardee(); |
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if (forwardee == NULL) { |
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// Not forwarded, return current reference. |
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assert(obj->mark() == markOopDesc::prototype_for_object(obj) || // Correct mark |
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obj->mark()->must_be_preserved(obj) || // Will be restored by PreservedMarksSet |
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(UseBiasedLocking && obj->has_bias_pattern()), // Will be restored by BiasedLocking |
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"Must have correct prototype or be preserved, obj: " PTR_FORMAT ", mark: " PTR_FORMAT ", prototype: " PTR_FORMAT, |
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p2i(obj), p2i(obj->mark()), p2i(markOopDesc::prototype_for_object(obj))); |
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return obj; |
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} |
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// Forwarded, update and return new reference. |
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assert(Universe::heap()->is_in_reserved(forwardee), "should be in object space"); |
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oopDesc::encode_store_heap_oop_not_null(p, forwardee); |
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return forwardee; |
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} |
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|
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template <class T> |
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inline void G1AdjustAndRebuildClosure::add_reference(T* from_field, oop reference, uint worker_id) { |
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if (HeapRegion::is_in_same_region(from_field, reference)) { |
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return; |
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} |
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_g1h->heap_region_containing(reference)->rem_set()->add_reference(from_field, worker_id); |
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} |
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|
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inline size_t G1AdjustAndRebuildClosure::calculate_compaction_delta(oop current, oop forwardee) { |
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return pointer_delta((HeapWord*)forwardee, (HeapWord*)current); |
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} |
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|
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template <class T> |
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inline T* G1AdjustAndRebuildClosure::add_compaction_delta(T* p) { |
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return (T*)((HeapWord*)p + _compaction_delta); |
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} |
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|
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template<typename T> |
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void G1AdjustAndRebuildClosure::do_oop_nv(T* p) { |
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oop new_reference = G1AdjustClosure::adjust_pointer(p); |
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if (new_reference == NULL) { |
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return; |
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} |
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|
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// Update p using the calculated compaction delta to |
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// get the new field address. |
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T* new_field = add_compaction_delta(p); |
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// Update the remembered set. |
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add_reference(new_field, new_reference, _worker_id); |
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} |
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|
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inline int G1AdjustObjectClosure::adjust_object(oop obj) { |
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_closure->update_compaction_delta(obj); |
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return obj->oop_iterate_size(_closure); |
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} |
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inline bool G1IsAliveClosure::do_object_b(oop p) { |
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return _bitmap->is_marked(p) || G1ArchiveAllocator::is_closed_archive_object(p); |
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} |
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template<typename T> |
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inline void G1FullKeepAliveClosure::do_oop_work(T* p) { |
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_marker->mark_and_push(p); |
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} |
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#endif |