120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
/*
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* Copyright (c) 2017, 2018, 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_GC_G1_G1FULLGCOOPCLOSURES_HPP
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#define SHARE_GC_G1_G1FULLGCOOPCLOSURES_HPP
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#include "gc/shared/verifyOption.hpp"
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#include "memory/iterator.hpp"
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class G1CollectedHeap;
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class G1FullCollector;
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class G1CMBitMap;
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class G1FullGCMarker;
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// Below are closures used by the G1 Full GC.
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class G1IsAliveClosure : public BoolObjectClosure {
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G1CMBitMap* _bitmap;
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public:
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G1IsAliveClosure(G1CMBitMap* bitmap) : _bitmap(bitmap) { }
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virtual bool do_object_b(oop p);
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};
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class G1FullKeepAliveClosure: public OopClosure {
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G1FullGCMarker* _marker;
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template <class T>
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inline void do_oop_work(T* p);
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public:
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G1FullKeepAliveClosure(G1FullGCMarker* pm) : _marker(pm) { }
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virtual void do_oop(oop* p);
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virtual void do_oop(narrowOop* p);
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};
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class G1MarkAndPushClosure : public OopIterateClosure {
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G1FullGCMarker* _marker;
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uint _worker_id;
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public:
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G1MarkAndPushClosure(uint worker, G1FullGCMarker* marker, ReferenceDiscoverer* ref) :
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OopIterateClosure(ref),
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_marker(marker),
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_worker_id(worker) { }
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template <class T> inline void do_oop_work(T* p);
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virtual void do_oop(oop* p);
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virtual void do_oop(narrowOop* p);
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virtual bool do_metadata();
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virtual void do_klass(Klass* k);
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virtual void do_cld(ClassLoaderData* cld);
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};
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class G1AdjustClosure : public BasicOopIterateClosure {
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template <class T> static inline void adjust_pointer(T* p);
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public:
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template <class T> void do_oop_work(T* p) { adjust_pointer(p); }
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virtual void do_oop(oop* p);
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virtual void do_oop(narrowOop* p);
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virtual ReferenceIterationMode reference_iteration_mode() { return DO_FIELDS; }
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};
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class G1VerifyOopClosure: public BasicOopIterateClosure {
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private:
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G1CollectedHeap* _g1h;
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bool _failures;
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oop _containing_obj;
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VerifyOption _verify_option;
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public:
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int _cc;
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G1VerifyOopClosure(VerifyOption option);
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void set_containing_obj(oop obj) {
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_containing_obj = obj;
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}
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bool failures() { return _failures; }
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void print_object(outputStream* out, oop obj);
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template <class T> void do_oop_work(T* p);
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void do_oop(oop* p) { do_oop_work(p); }
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void do_oop(narrowOop* p) { do_oop_work(p); }
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};
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class G1FollowStackClosure: public VoidClosure {
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G1FullGCMarker* _marker;
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public:
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G1FollowStackClosure(G1FullGCMarker* marker) : _marker(marker) {}
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virtual void do_void();
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};
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#endif // SHARE_GC_G1_G1FULLGCOOPCLOSURES_HPP
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