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/*
* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#ifndef SHARE_GC_Z_ZBARRIERSET_HPP
#define SHARE_GC_Z_ZBARRIERSET_HPP
#include "gc/shared/barrierSet.hpp"
class ZBarrierSetAssembler;
class ZBarrierSet : public BarrierSet {
public:
ZBarrierSet();
static ZBarrierSetAssembler* assembler();
static bool barrier_needed(DecoratorSet decorators, BasicType type);
virtual void on_thread_create(Thread* thread);
virtual void on_thread_destroy(Thread* thread);
virtual void on_thread_attach(Thread* thread);
virtual void on_thread_detach(Thread* thread);
virtual void print_on(outputStream* st) const;
template <DecoratorSet decorators, typename BarrierSetT = ZBarrierSet>
class AccessBarrier : public BarrierSet::AccessBarrier<decorators, BarrierSetT> {
private:
typedef BarrierSet::AccessBarrier<decorators, BarrierSetT> Raw;
template <DecoratorSet expected>
static void verify_decorators_present();
template <DecoratorSet expected>
static void verify_decorators_absent();
static oop* field_addr(oop base, ptrdiff_t offset);
template <typename T>
static oop load_barrier_on_oop_field_preloaded(T* addr, oop o);
template <typename T>
static oop load_barrier_on_unknown_oop_field_preloaded(oop base, ptrdiff_t offset, T* addr, oop o);
public:
//
// In heap
//
template <typename T>
static oop oop_load_in_heap(T* addr);
static oop oop_load_in_heap_at(oop base, ptrdiff_t offset);
template <typename T>
static oop oop_atomic_cmpxchg_in_heap(T* addr, oop compare_value, oop new_value);
static oop oop_atomic_cmpxchg_in_heap_at(oop base, ptrdiff_t offset, oop compare_value, oop new_value);
template <typename T>
static oop oop_atomic_xchg_in_heap(T* addr, oop new_value);
static oop oop_atomic_xchg_in_heap_at(oop base, ptrdiff_t offset, oop new_value);
template <typename T>
static bool oop_arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
arrayOop dst_obj, size_t dst_offset_in_bytes, T* dst_raw,
size_t length);
static void clone_in_heap(oop src, oop dst, size_t size);
//
// Not in heap
//
template <typename T>
static oop oop_load_not_in_heap(T* addr);
template <typename T>
static oop oop_atomic_cmpxchg_not_in_heap(T* addr, oop compare_value, oop new_value);
template <typename T>
static oop oop_atomic_xchg_not_in_heap(T* addr, oop new_value);
};
};
template<> struct BarrierSet::GetName<ZBarrierSet> {
static const BarrierSet::Name value = BarrierSet::ZBarrierSet;
};
template<> struct BarrierSet::GetType<BarrierSet::ZBarrierSet> {
typedef ::ZBarrierSet type;
};
#endif // SHARE_GC_Z_ZBARRIERSET_HPP
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