/*
* Copyright ( c ) 2019 , 2020 , 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 .
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*/
#ifndef SHARE_GC_Z_ZATTACHEDARRAY_INLINE_HPP
#define SHARE_GC_Z_ZATTACHEDARRAY_INLINE_HPP
#include "gc/z/zAttachedArray.hpp"
#include "memory/allocation.hpp"
#include "utilities/align.hpp"
template <typename ObjectT, typename ArrayT>
inline size_t ZAttachedArray<ObjectT, ArrayT>::object_size() {
return align_up(sizeof (ObjectT), sizeof (ArrayT));
}
template <typename ObjectT, typename ArrayT>
inline size_t ZAttachedArray<ObjectT, ArrayT>::array_size(size_t length) {
return sizeof (ArrayT) * length;
}
template <typename ObjectT, typename ArrayT>
template <typename Allocator>
inline void * ZAttachedArray<ObjectT, ArrayT>::alloc(Allocator* allocator, size_t length) {
// Allocate memory for object and array
const size_t size = object_size() + array_size(length);
void * const addr = allocator->alloc(size);
// Placement new array
void * const array_addr = reinterpret_cast <char*>(addr) + object_size();
::new (array_addr) ArrayT[length];
// Return pointer to object
return addr;
}
template <typename ObjectT, typename ArrayT>
inline void * ZAttachedArray<ObjectT, ArrayT>::alloc(size_t length) {
struct Allocator {
void * alloc(size_t size) const {
return AllocateHeap(size, mtGC);
}
} allocator;
return alloc(&allocator, length);
}
template <typename ObjectT, typename ArrayT>
inline void ZAttachedArray<ObjectT, ArrayT>::free(ObjectT* obj) {
FreeHeap(obj);
}
template <typename ObjectT, typename ArrayT>
inline ZAttachedArray<ObjectT, ArrayT>::ZAttachedArray(size_t length) :
_length(length) {}
template <typename ObjectT, typename ArrayT>
inline size_t ZAttachedArray<ObjectT, ArrayT>::length() const {
return _length;
}
template <typename ObjectT, typename ArrayT>
inline ArrayT* ZAttachedArray<ObjectT, ArrayT>::operator ()(const ObjectT* obj) const {
return reinterpret_cast <ArrayT*>(reinterpret_cast <uintptr_t>(obj) + object_size());
}
#endif // SHARE_GC_Z_ZATTACHEDARRAY_INLINE_HPP
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