1 /* 2 * Copyright (c) 2024 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_IDL_FILE_H 17 #define OHOS_IDL_FILE_H 18 19 #include <cstdio> 20 #include <set> 21 #include <string> 22 #include <vector> 23 24 namespace OHOS { 25 namespace Idl { 26 class File { 27 public: 28 File(const std::string &path, unsigned int mode); 29 30 ~File(); 31 IsValid()32 inline bool IsValid() const 33 { 34 return fd_ != nullptr; 35 } 36 GetPath()37 inline std::string GetPath() const 38 { 39 return path_; 40 } 41 42 char GetChar(); 43 44 char PeekChar(); 45 46 char NextChar(); 47 48 bool IsEof() const; 49 GetCharLineNumber()50 inline size_t GetCharLineNumber() const 51 { 52 return lineNo_; 53 } 54 GetCharColumnNumber()55 inline size_t GetCharColumnNumber() const 56 { 57 return columnNo_; 58 } 59 60 size_t ReadData(void *data, size_t size) const; 61 62 bool WriteData(const void *data, size_t size) const; 63 64 void Flush() const; 65 66 bool Reset() const; 67 68 bool Skip(long size) const; 69 70 void Close(); 71 72 static bool CreateParentDir(const std::string &path); 73 74 static bool CreatePartDir(const std::string &partPath); 75 76 static std::string AdapterPath(const std::string &path); 77 78 static std::string AdapterRealPath(const std::string &path); 79 80 static std::string RealPath(const std::string &path); 81 82 static std::string CanonicalPath(const std::string &path); 83 84 static std::string AbsolutePath(const std::string &path); 85 86 static std::vector<std::string> SplitPath(const std::string &path); 87 88 static std::string RelativePath(const std::string &pathA, const std::string &pathB); 89 90 static bool CheckValid(const std::string &path); 91 92 static std::set<std::string> FindFiles(const std::string &rootDir); 93 94 size_t GetHashKey(); 95 96 static constexpr unsigned int READ = 0x1; 97 static constexpr unsigned int WRITE = 0x2; 98 static constexpr unsigned int APPEND = 0x4; 99 100 private: 101 size_t Read(); 102 103 void OpenByRead(const std::string &path); 104 105 static constexpr int BUFFER_SIZE = 1024; 106 107 char buffer_[BUFFER_SIZE] = {0}; 108 size_t size_ = 0; 109 size_t position_ = 0; 110 size_t columnNo_ = 1; 111 size_t lineNo_ = 1; 112 bool isEof_ = false; 113 bool isError_ = false; 114 115 FILE *fd_ = nullptr; 116 std::string path_; 117 unsigned int mode_ = 0; 118 }; 119 } // namespace Idl 120 } // namespace OHOS 121 122 #endif // OHOS_IDL_FILE_H