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_UX_PAGE_TABLE_H
17#define OHOS_UTILS_MEMORY_LIBPURGEABLEMEM_CPP_INCLUDE_UX_PAGE_TABLE_H
18
19#include <string> /* std::string */
20
21#include "ux_page_table_c.h" /* UxPageTableStruct */
22
23namespace OHOS {
24namespace PurgeableMem {
25class UxPageTable {
26public:
27    UxPageTable(uint64_t startAddr, size_t size);
28    ~UxPageTable();
29
30private:
31    UxPageTableStruct *uxpt_;
32    friend class PurgeableMem;
33    /* only called by its friend */
34    void GetUxpte(uint64_t addr, size_t len);
35    void PutUxpte(uint64_t addr, size_t len);
36    bool CheckPresent(uint64_t addr, size_t len);
37    std::string ToString() const;
38};
39} /* namespace PurgeableMem */
40} /* namespace OHOS */
41#endif /* OHOS_UTILS_MEMORY_LIBPURGEABLEMEM_CPP_INCLUDE_UX_PAGE_TABLE_H */
42