1/*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#ifndef ECMASCRIPT_WORK_SPACE_CHUNK_H
17#define ECMASCRIPT_WORK_SPACE_CHUNK_H
18
19#include "ecmascript/common.h"
20#include "ecmascript/log_wrapper.h"
21#include "ecmascript/mem/ecma_list.h"
22#include "ecmascript/mem/area.h"
23#include "ecmascript/mem/chunk.h"
24#include "ecmascript/mem/c_containers.h"
25#include "ecmascript/platform/mutex.h"
26
27namespace panda::ecmascript {
28class NativeAreaAllocator;
29
30class PUBLIC_API WorkSpaceChunk {
31public:
32    static constexpr size_t MEM_ALIGN = 8U;
33
34    explicit WorkSpaceChunk(NativeAreaAllocator *allocator);
35    WorkSpaceChunk() = default;
36    ~WorkSpaceChunk()
37    {
38        ReleaseMemory();
39    }
40
41    NO_COPY_SEMANTIC(WorkSpaceChunk);
42    NO_MOVE_SEMANTIC(WorkSpaceChunk);
43
44    void *Allocate(size_t size)
45    {
46        LockHolder lock(mtx_);
47        if (size != WORKNODE_SPACE_SIZE) {
48            LOG_ECMA_MEM(FATAL) << "WorkNode size is illegal, size:" << size;
49            UNREACHABLE();
50        }
51        size = AlignUp(size, MEM_ALIGN);
52        uintptr_t result = NewArea(size);
53
54        return reinterpret_cast<void *>(result);
55    }
56
57    void Free([[maybe_unused]] void *mem);
58
59private:
60    uintptr_t NewArea(size_t size);
61    void ReleaseMemory();
62    NativeAreaAllocator *allocator_ {nullptr};
63    Mutex mtx_;
64    CUnorderedMap<uintptr_t, uintptr_t> areaList_ {};
65};
66}  // namespace panda::ecmascript
67#endif  // ECMASCRIPT_WORK_SPACE_CHUNK_H
68