author | stuefe |
Tue, 26 Nov 2019 16:21:29 +0100 | |
branch | stuefe-new-metaspace-branch |
changeset 59272 | 54750b448264 |
parent 54006 | a421bdf22394 |
child 59251 | 4cbfa5077d68 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2019, 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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#ifndef SHARE_GC_Z_ZBARRIERSET_HPP |
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#define SHARE_GC_Z_ZBARRIERSET_HPP |
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#include "gc/shared/barrierSet.hpp" |
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class ZBarrierSetAssembler; |
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class ZBarrierSet : public BarrierSet { |
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public: |
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ZBarrierSet(); |
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static ZBarrierSetAssembler* assembler(); |
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static bool barrier_needed(DecoratorSet decorators, BasicType type); |
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virtual void on_thread_create(Thread* thread); |
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virtual void on_thread_destroy(Thread* thread); |
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virtual void on_thread_attach(Thread* thread); |
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virtual void on_thread_detach(Thread* thread); |
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virtual void print_on(outputStream* st) const {} |
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template <DecoratorSet decorators, typename BarrierSetT = ZBarrierSet> |
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class AccessBarrier : public BarrierSet::AccessBarrier<decorators, BarrierSetT> { |
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private: |
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typedef BarrierSet::AccessBarrier<decorators, BarrierSetT> Raw; |
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template <DecoratorSet expected> |
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static void verify_decorators_present(); |
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template <DecoratorSet expected> |
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static void verify_decorators_absent(); |
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static oop* field_addr(oop base, ptrdiff_t offset); |
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template <typename T> |
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static oop load_barrier_on_oop_field_preloaded(T* addr, oop o); |
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template <typename T> |
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static oop load_barrier_on_unknown_oop_field_preloaded(oop base, ptrdiff_t offset, T* addr, oop o); |
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public: |
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// |
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// In heap |
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// |
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template <typename T> |
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static oop oop_load_in_heap(T* addr); |
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static oop oop_load_in_heap_at(oop base, ptrdiff_t offset); |
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template <typename T> |
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static oop oop_atomic_cmpxchg_in_heap(oop new_value, T* addr, oop compare_value); |
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static oop oop_atomic_cmpxchg_in_heap_at(oop new_value, oop base, ptrdiff_t offset, oop compare_value); |
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template <typename T> |
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static oop oop_atomic_xchg_in_heap(oop new_value, T* addr); |
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static oop oop_atomic_xchg_in_heap_at(oop new_value, oop base, ptrdiff_t offset); |
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template <typename T> |
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static bool oop_arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw, |
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arrayOop dst_obj, size_t dst_offset_in_bytes, T* dst_raw, |
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size_t length); |
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static void clone_in_heap(oop src, oop dst, size_t size); |
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// |
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// Not in heap |
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// |
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template <typename T> |
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static oop oop_load_not_in_heap(T* addr); |
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template <typename T> |
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static oop oop_atomic_cmpxchg_not_in_heap(oop new_value, T* addr, oop compare_value); |
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template <typename T> |
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static oop oop_atomic_xchg_not_in_heap(oop new_value, T* addr); |
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}; |
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}; |
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template<> struct BarrierSet::GetName<ZBarrierSet> { |
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static const BarrierSet::Name value = BarrierSet::ZBarrierSet; |
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}; |
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template<> struct BarrierSet::GetType<BarrierSet::ZBarrierSet> { |
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typedef ::ZBarrierSet type; |
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}; |
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#endif // SHARE_GC_Z_ZBARRIERSET_HPP |