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https://gitee.com/openharmony/arkcompiler_ets_runtime
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123 lines
3.3 KiB
C++
123 lines
3.3 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ECMASCRIPT_ECMA_GLOABL_STORAGE_H
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#define ECMASCRIPT_ECMA_GLOABL_STORAGE_H
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#include "ecmascript/js_tagged_value.h"
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#include "ecmascript/mem/c_containers.h"
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#include "ecmascript/mem/chunk.h"
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namespace panda::ecmascript {
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class EcmaGlobalStorage {
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public:
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static const int32_t GLOBAL_BLOCK_SIZE = 256;
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explicit EcmaGlobalStorage(Chunk *chunk) : chunk_(chunk)
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{
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ASSERT(chunk != nullptr);
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globalNodes_ = chunk->New<CVector<std::array<Node, GLOBAL_BLOCK_SIZE> *>>();
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weakGlobalNodes_ = chunk->New<CVector<std::array<Node, GLOBAL_BLOCK_SIZE> *>>();
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};
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~EcmaGlobalStorage()
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{
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for (auto block : *globalNodes_) {
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chunk_->Delete(block);
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}
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chunk_->Delete(globalNodes_);
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for (auto block : *weakGlobalNodes_) {
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chunk_->Delete(block);
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}
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chunk_->Delete(weakGlobalNodes_);
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}
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class Node {
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public:
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JSTaggedType GetObject() const
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{
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return obj_;
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}
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void SetObject(JSTaggedType obj)
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{
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obj_ = obj;
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}
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Node *GetNext() const
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{
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return next_;
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}
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void SetNext(Node *node)
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{
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next_ = node;
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}
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uintptr_t GetObjectAddress() const
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{
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return reinterpret_cast<uintptr_t>(&obj_);
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}
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private:
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JSTaggedType obj_;
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Node *next_;
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};
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inline uintptr_t NewGlobalHandle(JSTaggedType value);
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inline void DisposeGlobalHandle(uintptr_t addr);
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inline uintptr_t SetWeak(uintptr_t addr);
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inline bool IsWeak(uintptr_t addr) const;
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inline CVector<std::array<Node, GLOBAL_BLOCK_SIZE> *> *GetNodes() const
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{
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return globalNodes_;
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}
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inline CVector<std::array<Node, GLOBAL_BLOCK_SIZE> *> *GetWeakNodes() const
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{
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return weakGlobalNodes_;
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}
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inline int32_t GetCount() const
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{
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return count_;
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}
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inline int32_t GetWeakCount() const
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{
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return weakCount_;
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}
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private:
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NO_COPY_SEMANTIC(EcmaGlobalStorage);
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NO_MOVE_SEMANTIC(EcmaGlobalStorage);
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inline uintptr_t NewGlobalHandleImplement(CVector<std::array<Node, GLOBAL_BLOCK_SIZE> *> *storage, Node *freeList,
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int32_t &count, JSTaggedType value);
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Chunk *chunk_ {nullptr};
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CVector<std::array<Node, GLOBAL_BLOCK_SIZE> *> *globalNodes_ {nullptr};
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int32_t count_ {GLOBAL_BLOCK_SIZE};
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Node *freeList_ {nullptr};
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CVector<std::array<Node, GLOBAL_BLOCK_SIZE> *> *weakGlobalNodes_ {nullptr};
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int32_t weakCount_ {GLOBAL_BLOCK_SIZE};
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Node *weakFreeList_ {nullptr};
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};
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_ECMA_GLOABL_STORAGE_H
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