1 /* 2 * Copyright (c) 2021 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 PLATFORM_SPECIFIC_H 17 #define PLATFORM_SPECIFIC_H 18 19 #include <cstdint> 20 #include <list> 21 #include <string> 22 23 namespace DistributedDB { 24 #if (defined(OS_TYPE_WINDOWS)) || (defined(OS_TYPE_MAC)) 25 constexpr int EKEYREVOKED = 128; // FOR_WIN32 26 #endif 27 28 namespace OS { 29 enum FileType { 30 FILE = 0, 31 PATH = 1, 32 OTHER = 2, 33 }; 34 35 struct FileAttr { 36 std::string fileName; 37 FileType fileType = FileType::FILE; 38 uint64_t fileLen = 0; 39 }; 40 41 // Shield the representation method of file handles on different platforms 42 struct FileHandle; 43 44 int CalFileSize(const std::string &fileUrl, uint64_t &size); 45 46 bool CheckPathExistence(const std::string &filePath); 47 48 int MakeDBDirectory(const std::string &directory); 49 50 int RemoveFile(const std::string &filePath); 51 // Can only remove empty directory 52 int RemoveDBDirectory(const std::string &directory); 53 54 int GetRealPath(const std::string &inOriPath, std::string &outRealPath); 55 56 int GetCurrentSysTimeInMicrosecond(uint64_t &outTime); 57 58 int GetMonotonicRelativeTimeInMicrosecond(uint64_t &outTime); 59 60 int CreateFileByFileName(const std::string &fileName); 61 62 void SplitFilePath(const std::string &filePath, std::string &fileDir, std::string &fileName); 63 64 int GetFileAttrFromPath(const std::string &filePath, std::list<FileAttr> &files, bool isNeedAllPath = false); 65 66 int GetFilePermissions(const std::string &fileName, uint32_t &permissions); 67 68 int SetFilePermissions(const std::string &fileName, uint32_t permissions); 69 70 int RenameFilePath(const std::string &oldFilePath, const std::string &newFilePath); 71 72 int OpenFile(const std::string &fileName, FileHandle *&fileHandle); 73 int CloseFile(FileHandle *fileHandle); 74 75 int FileLock(const FileHandle *fileHandle, bool isBlock); // be careful use block=true, may block process 76 int FileUnlock(FileHandle *fileHandle); 77 } // namespace OS 78 } // namespace DistributedDB 79 80 #endif // PLATFORM_SPECIFIC_H