1/*
2 * Copyright (c) 2022 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_SHARED_MEMORY_MANAGER_MANAGER_H
17#define ECMASCRIPT_SHARED_MEMORY_MANAGER_MANAGER_H
18
19#include "ecmascript/mem/c_containers.h"
20#include "ecmascript/platform/mutex.h"
21
22namespace panda {
23class EcmaVm;
24namespace ecmascript {
25class JSSharedMemoryManager {
26public:
27    PUBLIC_API ~JSSharedMemoryManager();
28
29    static JSSharedMemoryManager *GetInstance()
30    {
31        static JSSharedMemoryManager jsSharedMemoryManager;
32        return &jsSharedMemoryManager;
33    }
34    bool CreateOrLoad(void **pointer, size_t size);
35    static void RemoveSharedMemory(void *env, void *pointer, void *data);
36private:
37    JSSharedMemoryManager() = default;
38
39    void InsertSharedMemory(const void *pointer);
40    void IncreaseRefSharedMemory(const void *pointer);
41    void DecreaseRefSharedMemory(const void *pointer);
42    void FreeBuffer(void *mem);
43    void *AllocateBuffer(size_t size);
44    RecursiveMutex jsSharedMemoryLock_;
45    CMap<const uint64_t, int32_t> loadedJSSharedMemory_;
46};
47}  // namespace ecmascript
48}  // namespace panda
49#endif // ECMASCRIPT_SHARED_MEMORY_MANAGER_MANAGER_H
50