106f6ba60Sopenharmony_ci/* 206f6ba60Sopenharmony_ci * Copyright (c) Huawei Technologies Co., Ltd. 2021. All rights reserved. 306f6ba60Sopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License"); 406f6ba60Sopenharmony_ci * you may not use this file except in compliance with the License. 506f6ba60Sopenharmony_ci * You may obtain a copy of the License at 606f6ba60Sopenharmony_ci * 706f6ba60Sopenharmony_ci * http://www.apache.org/licenses/LICENSE-2.0 806f6ba60Sopenharmony_ci * 906f6ba60Sopenharmony_ci * Unless required by applicable law or agreed to in writing, software 1006f6ba60Sopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS, 1106f6ba60Sopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1206f6ba60Sopenharmony_ci * See the License for the specific language governing permissions and 1306f6ba60Sopenharmony_ci * limitations under the License. 1406f6ba60Sopenharmony_ci */ 1506f6ba60Sopenharmony_ci 1606f6ba60Sopenharmony_ci#ifndef FILE_CACHE_H_ 1706f6ba60Sopenharmony_ci#define FILE_CACHE_H_ 1806f6ba60Sopenharmony_ci 1906f6ba60Sopenharmony_ci#include <algorithm> 2006f6ba60Sopenharmony_ci#include <climits> 2106f6ba60Sopenharmony_ci#include <cstdint> 2206f6ba60Sopenharmony_ci#include <fstream> 2306f6ba60Sopenharmony_ci#include <string> 2406f6ba60Sopenharmony_ci#include <sys/stat.h> 2506f6ba60Sopenharmony_ci#include <unistd.h> 2606f6ba60Sopenharmony_ci#include <unordered_map> 2706f6ba60Sopenharmony_ci 2806f6ba60Sopenharmony_ci#include "logging.h" 2906f6ba60Sopenharmony_ci#include "securec.h" 3006f6ba60Sopenharmony_ci 3106f6ba60Sopenharmony_ciclass FileCache { 3206f6ba60Sopenharmony_cipublic: 3306f6ba60Sopenharmony_ci FileCache(const std::string &path); 3406f6ba60Sopenharmony_ci ~FileCache(); 3506f6ba60Sopenharmony_ci 3606f6ba60Sopenharmony_ci bool Open(const std::string& name); 3706f6ba60Sopenharmony_ci 3806f6ba60Sopenharmony_ci long Write(char* bytes, int32_t len); 3906f6ba60Sopenharmony_ci 4006f6ba60Sopenharmony_ci long Read(char* buff); 4106f6ba60Sopenharmony_ci 4206f6ba60Sopenharmony_ci bool Close(); 4306f6ba60Sopenharmony_ci 4406f6ba60Sopenharmony_ciprivate: 4506f6ba60Sopenharmony_ci std::string path_; 4606f6ba60Sopenharmony_ci FILE* fp_; 4706f6ba60Sopenharmony_ci std::unordered_map<uint64_t, uint64_t> size_; 4806f6ba60Sopenharmony_ci}; 4906f6ba60Sopenharmony_ci 5006f6ba60Sopenharmony_ci#endif // !FILE_CACHE_H_