/*
* Copyright ( c ) 2019 , Red Hat , Inc . 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 .
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*/
#ifndef SHARE_GC_SHARED_BARRIERSET_INLINE_HPP
#define SHARE_GC_SHARED_BARRIERSET_INLINE_HPP
#include "gc/shared/barrierSet.hpp"
#include "oops/accessDecorators.hpp"
#include "oops/arrayOop.hpp"
#include "oops/compressedOops.inline.hpp"
#include "oops/objArrayOop.inline.hpp"
#include "oops/oop.hpp"
template <DecoratorSet decorators, typename BarrierSetT>
template <typename T>
inline bool BarrierSet::AccessBarrier<decorators, BarrierSetT>::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) {
T* src = arrayOopDesc::obj_offset_to_raw(src_obj, src_offset_in_bytes, src_raw);
T* dst = arrayOopDesc::obj_offset_to_raw(dst_obj, dst_offset_in_bytes, dst_raw);
if (!HasDecorator<decorators, ARRAYCOPY_CHECKCAST>::value) {
// Covariant, copy without checks
return Raw::oop_arraycopy(NULL, 0 , src, NULL, 0 , dst, length);
}
// Copy each element with checking casts
Klass* const dst_klass = objArrayOop(dst_obj)->element_klass();
for (const T* const end = src + length; src < end; src++, dst++) {
const T elem = *src;
if (!oopDesc::is_instanceof_or_null(CompressedOops::decode(elem), dst_klass)) {
return false;
}
*dst = elem;
}
return true ;
}
#endif // SHARE_GC_SHARED_BARRIERSET_INLINE_HPP
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