/*
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* 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 .
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*/
#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
Messung V0.5 in Prozent C=93 H=100 G=96
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(vorverarbeitet am 2026-09-04)
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