mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
synced 2024-10-07 08:03:29 +00:00
b7ea212185
Description:allcate object to different space and support serialize multi files ISSUE:https://gitee.com/openharmony/ark_js_runtime/issues/I592G1 Signed-off-by: dingwen <dingwen6@huawei.com> Change-Id: I5483566fd049d692cd19beece830957615d851c2
140 lines
3.4 KiB
C++
140 lines
3.4 KiB
C++
/*
|
|
* Copyright (c) 2021 Huawei Device Co., Ltd.
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ECMASCRIPT_MEM_ALLOCATOR_H
|
|
#define ECMASCRIPT_MEM_ALLOCATOR_H
|
|
|
|
#include <memory>
|
|
|
|
#include "ecmascript/mem/free_object_list.h"
|
|
#include "ecmascript/mem/mem.h"
|
|
|
|
namespace panda::ecmascript {
|
|
class Region;
|
|
class Heap;
|
|
|
|
class Allocator {
|
|
public:
|
|
Allocator() = default;
|
|
virtual ~Allocator() = default;
|
|
NO_COPY_SEMANTIC(Allocator);
|
|
NO_MOVE_SEMANTIC(Allocator);
|
|
};
|
|
|
|
class BumpPointerAllocator : public Allocator {
|
|
public:
|
|
BumpPointerAllocator() = default;
|
|
~BumpPointerAllocator() override = default;
|
|
NO_COPY_SEMANTIC(BumpPointerAllocator);
|
|
NO_MOVE_SEMANTIC(BumpPointerAllocator);
|
|
|
|
inline BumpPointerAllocator(uintptr_t begin, uintptr_t end);
|
|
|
|
inline void Reset();
|
|
inline void Reset(uintptr_t begin, uintptr_t end);
|
|
inline void Reset(uintptr_t begin, uintptr_t end, uintptr_t top);
|
|
inline uintptr_t Allocate(size_t size);
|
|
|
|
uintptr_t GetTop() const
|
|
{
|
|
return top_;
|
|
}
|
|
|
|
uintptr_t GetEnd() const
|
|
{
|
|
return end_;
|
|
}
|
|
|
|
const uintptr_t *GetTopAddress()
|
|
{
|
|
return &top_;
|
|
}
|
|
|
|
const uintptr_t *GetEndAddress()
|
|
{
|
|
return &end_;
|
|
}
|
|
|
|
size_t Available() const
|
|
{
|
|
return (end_ - top_);
|
|
}
|
|
|
|
private:
|
|
uintptr_t begin_ {0};
|
|
uintptr_t top_ {0};
|
|
uintptr_t end_ {0};
|
|
};
|
|
|
|
class FreeListAllocator : public Allocator {
|
|
public:
|
|
FreeListAllocator() = delete;
|
|
~FreeListAllocator() override = default;
|
|
|
|
NO_COPY_SEMANTIC(FreeListAllocator);
|
|
NO_MOVE_SEMANTIC(FreeListAllocator);
|
|
|
|
inline explicit FreeListAllocator(Heap *heap);
|
|
inline void Initialize(Region *region);
|
|
|
|
inline void Reset(Heap *heap);
|
|
|
|
inline uintptr_t Allocate(size_t size);
|
|
inline void AddFree(Region *region);
|
|
inline uintptr_t LookupSuitableFreeObject(size_t size);
|
|
|
|
inline void RebuildFreeList();
|
|
|
|
inline void CollectFreeObjectSet(Region *region);
|
|
inline void DetachFreeObjectSet(Region *region);
|
|
|
|
inline void FreeBumpPoint();
|
|
// Only fill free object
|
|
inline void FillBumpPointer();
|
|
|
|
inline void ResetBumpPointer(uintptr_t begin, uintptr_t end, uintptr_t top);
|
|
|
|
inline void Free(uintptr_t begin, size_t size, bool isAdd = true);
|
|
|
|
inline size_t GetAvailableSize() const;
|
|
inline size_t GetWastedSize() const;
|
|
|
|
uintptr_t GetTop() const
|
|
{
|
|
return bpAllocator_.GetTop();
|
|
}
|
|
|
|
size_t GetAllocatedSize() const
|
|
{
|
|
return allocationSizeAccumulator_;
|
|
}
|
|
|
|
void IncreaseAllocatedSize(size_t allocatedSize)
|
|
{
|
|
allocationSizeAccumulator_ += allocatedSize;
|
|
}
|
|
|
|
private:
|
|
inline uintptr_t Allocate(FreeObject *object, size_t size);
|
|
|
|
BumpPointerAllocator bpAllocator_;
|
|
std::unique_ptr<FreeObjectList> freeList_;
|
|
Heap *heap_{nullptr};
|
|
size_t allocationSizeAccumulator_ {0};
|
|
};
|
|
} // namespace panda::ecmascript
|
|
|
|
#endif // ECMASCRIPT_MEM_ALLOCATOR_H
|