83 lines
3.0 KiB
C++
83 lines
3.0 KiB
C++
/*
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* Copyright (c) 2011, 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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#ifndef SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
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#define SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
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#include "oops/instanceKlass.hpp"
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#include "utilities/macros.hpp"
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class ClassFileParser;
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// An InstanceClassLoaderKlass is a specialization of the InstanceKlass. It does
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// not add any field. It is added to walk the dependencies for the class loader
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// key that this class loader points to. This is how the loader_data graph is
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// walked and dependant class loaders are kept alive. I thought we walked
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// the list later?
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class InstanceClassLoaderKlass: public InstanceKlass {
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friend class VMStructs;
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friend class InstanceKlass;
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public:
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static const KlassID ID = InstanceClassLoaderKlassID;
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private:
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InstanceClassLoaderKlass(const ClassFileParser& parser) : InstanceKlass(parser, InstanceKlass::_misc_kind_class_loader, ID) {}
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public:
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InstanceClassLoaderKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); }
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// GC specific object visitors
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//
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#if INCLUDE_PARALLELGC
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// Parallel Scavenge
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void oop_ps_push_contents( oop obj, PSPromotionManager* pm);
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// Parallel Compact
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void oop_pc_follow_contents(oop obj, ParCompactionManager* cm);
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void oop_pc_update_pointers(oop obj, ParCompactionManager* cm);
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#endif
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// Oop fields (and metadata) iterators
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//
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// The InstanceClassLoaderKlass iterators also visit the CLD pointer (or mirror of anonymous klasses.)
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public:
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// Forward iteration
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// Iterate over the oop fields and metadata.
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template <typename T, class OopClosureType>
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inline void oop_oop_iterate(oop obj, OopClosureType* closure);
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// Reverse iteration
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// Iterate over the oop fields and metadata.
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template <typename T, class OopClosureType>
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inline void oop_oop_iterate_reverse(oop obj, OopClosureType* closure);
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// Bounded range iteration
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// Iterate over the oop fields and metadata.
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template <typename T, class OopClosureType>
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inline void oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr);
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};
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#endif // SHARE_VM_OOPS_INSTANCECLASSLOADERKLASS_HPP
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