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694acedf18
Reviewed-by: coleenp, erikj, stefank, iignatyev, dholmes, aph, shade, iklam, mchung, iveresov
78 lines
2.9 KiB
C++
78 lines
2.9 KiB
C++
/*
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* Copyright (c) 2014, 2021, 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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#include "precompiled.hpp"
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#include "classfile/classLoaderDataGraph.hpp"
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#include "classfile/stringTable.hpp"
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#include "gc/shared/oopStorage.inline.hpp"
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#include "gc/shared/oopStorageSet.inline.hpp"
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#include "gc/shared/strongRootsScope.hpp"
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#include "jfr/leakprofiler/chains/bfsClosure.hpp"
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#include "jfr/leakprofiler/chains/dfsClosure.hpp"
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#include "jfr/leakprofiler/chains/edgeQueue.hpp"
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#include "jfr/leakprofiler/chains/rootSetClosure.hpp"
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#include "jfr/leakprofiler/utilities/unifiedOopRef.inline.hpp"
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#include "oops/access.inline.hpp"
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#include "oops/oop.inline.hpp"
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#include "runtime/synchronizer.hpp"
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#include "runtime/thread.hpp"
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#include "services/management.hpp"
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#include "utilities/align.hpp"
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template <typename Delegate>
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RootSetClosure<Delegate>::RootSetClosure(Delegate* delegate) : _delegate(delegate) {}
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template <typename Delegate>
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void RootSetClosure<Delegate>::do_oop(oop* ref) {
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assert(ref != NULL, "invariant");
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assert(is_aligned(ref, HeapWordSize), "invariant");
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if (*ref != NULL) {
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_delegate->do_root(UnifiedOopRef::encode_in_native(ref));
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}
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}
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template <typename Delegate>
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void RootSetClosure<Delegate>::do_oop(narrowOop* ref) {
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assert(ref != NULL, "invariant");
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assert(is_aligned(ref, sizeof(narrowOop)), "invariant");
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if (!CompressedOops::is_null(*ref)) {
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_delegate->do_root(UnifiedOopRef::encode_in_native(ref));
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}
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}
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class RootSetClosureMarkScope : public MarkScope {};
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template <typename Delegate>
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void RootSetClosure<Delegate>::process() {
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RootSetClosureMarkScope mark_scope;
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CLDToOopClosure cldt_closure(this, ClassLoaderData::_claim_none);
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ClassLoaderDataGraph::always_strong_cld_do(&cldt_closure);
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// We don't follow code blob oops, because they have misaligned oops.
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Threads::oops_do(this, NULL);
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OopStorageSet::strong_oops_do(this);
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}
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template class RootSetClosure<BFSClosure>;
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template class RootSetClosure<DFSClosure>;
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