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 OHOS_UTILS_MEMORY_LIBPURGEABLEMEM_CPP_INCLUDE_PURGEABLE_MEM_H
17#define OHOS_UTILS_MEMORY_LIBPURGEABLEMEM_CPP_INCLUDE_PURGEABLE_MEM_H
18
19#include <memory> /* unique_ptr */
20#include <shared_mutex> /* shared_mutex */
21#include <string>
22
23#include "purgeable_mem_builder.h"
24#include "purgeable_mem_base.h"
25#include "ux_page_table.h"
26
27namespace OHOS {
28namespace PurgeableMem {
29class PurgeableMem : public PurgeableMemBase {
30public:
31    PurgeableMem(size_t dataSize, std::unique_ptr<PurgeableMemBuilder> builder);
32    ~PurgeableMem();
33    void ResizeData(size_t newSize) override;
34
35protected:
36    std::unique_ptr<UxPageTable> pageTable_ = nullptr;
37    bool Pin() override;
38    bool Unpin() override;
39    bool IsPurged() override;
40    int GetPinStatus() const override;
41    bool CreatePurgeableData();
42    void AfterRebuildSucc() override;
43    std::string ToString() const override;
44};
45} /* namespace PurgeableMem */
46} /* namespace OHOS */
47#endif /* OHOS_UTILS_MEMORY_LIBPURGEABLEMEM_CPP_INCLUDE_PURGEABLE_MEM_H */
48