1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #include "../../include/fxcrt/fx_ext.h" 8 #include "fxcrt_platforms.h" 9 #if (_FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ && _FXM_PLATFORM_ != _FXM_PLATFORM_LINUX_ && _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ && _FXM_PLATFORM_ != _FXM_PLATFORM_ANDROID_) 10 IFXCRT_FileAccess* FXCRT_FileAccess_Create(IFX_Allocator* pAllocator) 11 { 12 if (pAllocator) { 13 return FX_NewAtAllocator(pAllocator) CFXCRT_FileAccess_CRT; 14 } else { 15 return FX_NEW CFXCRT_FileAccess_CRT; 16 } 17 } 18 void FXCRT_GetFileModeString(FX_DWORD dwModes, CFX_ByteString &bsMode) 19 { 20 if (dwModes & FX_FILEMODE_ReadOnly) { 21 bsMode = FX_BSTRC("rb"); 22 } else if (dwModes & FX_FILEMODE_Truncate) { 23 bsMode = FX_BSTRC("w+b"); 24 } else { 25 bsMode = FX_BSTRC("a+b"); 26 } 27 } 28 void FXCRT_GetFileModeString(FX_DWORD dwModes, CFX_WideString &wsMode) 29 { 30 if (dwModes & FX_FILEMODE_ReadOnly) { 31 wsMode = FX_WSTRC(L"rb"); 32 } else if (dwModes & FX_FILEMODE_Truncate) { 33 wsMode = FX_WSTRC(L"w+b"); 34 } else { 35 wsMode = FX_WSTRC(L"a+b"); 36 } 37 } 38 CFXCRT_FileAccess_CRT::CFXCRT_FileAccess_CRT() 39 : m_hFile(NULL) 40 { 41 } 42 CFXCRT_FileAccess_CRT::~CFXCRT_FileAccess_CRT() 43 { 44 Close(); 45 } 46 FX_BOOL CFXCRT_FileAccess_CRT::Open(FX_BSTR fileName, FX_DWORD dwMode) 47 { 48 if (m_hFile) { 49 return FALSE; 50 } 51 CFX_ByteString strMode; 52 FXCRT_GetFileModeString(dwMode, strMode); 53 m_hFile = FXSYS_fopen(fileName.GetCStr(), (FX_LPCSTR)strMode); 54 return m_hFile != NULL; 55 } 56 FX_BOOL CFXCRT_FileAccess_CRT::Open(FX_WSTR fileName, FX_DWORD dwMode) 57 { 58 if (m_hFile) { 59 return FALSE; 60 } 61 CFX_WideString strMode; 62 FXCRT_GetFileModeString(dwMode, strMode); 63 m_hFile = FXSYS_wfopen(fileName.GetPtr(), (FX_LPCWSTR)strMode); 64 return m_hFile != NULL; 65 } 66 void CFXCRT_FileAccess_CRT::Close() 67 { 68 if (!m_hFile) { 69 return; 70 } 71 FXSYS_fclose(m_hFile); 72 m_hFile = NULL; 73 } 74 void CFXCRT_FileAccess_CRT::Release(IFX_Allocator* pAllocator) 75 { 76 if (pAllocator) { 77 FX_DeleteAtAllocator(this, pAllocator, CFXCRT_FileAccess_CRT); 78 } else { 79 delete this; 80 } 81 } 82 FX_FILESIZE CFXCRT_FileAccess_CRT::GetSize() const 83 { 84 if (!m_hFile) { 85 return 0; 86 } 87 FX_FILESIZE pos = (FX_FILESIZE)FXSYS_ftell(m_hFile); 88 FXSYS_fseek(m_hFile, 0, FXSYS_SEEK_END); 89 FX_FILESIZE size = (FX_FILESIZE)FXSYS_ftell(m_hFile); 90 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET); 91 return size; 92 } 93 FX_FILESIZE CFXCRT_FileAccess_CRT::GetPosition() const 94 { 95 if (!m_hFile) { 96 return (FX_FILESIZE) - 1; 97 } 98 return (FX_FILESIZE)FXSYS_ftell(m_hFile); 99 } 100 FX_FILESIZE CFXCRT_FileAccess_CRT::SetPosition(FX_FILESIZE pos) 101 { 102 if (!m_hFile) { 103 return (FX_FILESIZE) - 1; 104 } 105 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET); 106 return (FX_FILESIZE)FXSYS_ftell(m_hFile); 107 } 108 size_t CFXCRT_FileAccess_CRT::Read(void* pBuffer, size_t szBuffer) 109 { 110 if (!m_hFile) { 111 return 0; 112 } 113 return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile); 114 } 115 size_t CFXCRT_FileAccess_CRT::Write(const void* pBuffer, size_t szBuffer) 116 { 117 if (!m_hFile) { 118 return 0; 119 } 120 return FXSYS_fwrite(pBuffer, 1, szBuffer, m_hFile); 121 } 122 size_t CFXCRT_FileAccess_CRT::ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) 123 { 124 if (!m_hFile) { 125 return (FX_FILESIZE) - 1; 126 } 127 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET); 128 return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile); 129 } 130 size_t CFXCRT_FileAccess_CRT::WritePos(const void* pBuffer, size_t szBuffer, FX_FILESIZE pos) 131 { 132 if (!m_hFile) { 133 return (FX_FILESIZE) - 1; 134 } 135 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET); 136 return FXSYS_fwrite(pBuffer, 1, szBuffer, m_hFile); 137 } 138 FX_BOOL CFXCRT_FileAccess_CRT::Flush() 139 { 140 if (!m_hFile) { 141 return FALSE; 142 } 143 return !FXSYS_fflush(m_hFile); 144 } 145 FX_BOOL CFXCRT_FileAccess_CRT::Truncate(FX_FILESIZE szFile) 146 { 147 return FALSE; 148 } 149 FX_BOOL FX_File_Exist(FX_BSTR fileName) 150 { 151 return access(fileName.GetCStr(), F_OK) > -1; 152 } 153 FX_BOOL FX_File_Exist(FX_WSTR fileName) 154 { 155 return FX_File_Exist(FX_UTF8Encode(fileName)); 156 } 157 FX_BOOL FX_File_Delete(FX_BSTR fileName) 158 { 159 return remove(fileName.GetCStr()) > -1; 160 } 161 FX_BOOL FX_File_Delete(FX_WSTR fileName) 162 { 163 return FX_File_Delete(FX_UTF8Encode(fileName)); 164 } 165 FX_BOOL FX_File_Copy(FX_BSTR fileNameSrc, FX_BSTR fileNameDst) 166 { 167 CFXCRT_FileAccess_CRT src, dst; 168 if (!src.Open(fileNameSrc, FX_FILEMODE_ReadOnly)) { 169 return FALSE; 170 } 171 FX_FILESIZE size = src.GetSize(); 172 if (!size) { 173 return FALSE; 174 } 175 if (!dst.Open(fileNameDst, FX_FILEMODE_Truncate)) { 176 return FALSE; 177 } 178 FX_FILESIZE num = 0; 179 FX_LPBYTE pBuffer = FX_Alloc(FX_BYTE, 32768); 180 if (!pBuffer) { 181 return FALSE; 182 } 183 while (num = src.Read(pBuffer, 32768)) { 184 if (dst.Write(pBuffer, num) != num) { 185 break; 186 } 187 } 188 FX_Free(pBuffer); 189 return TRUE; 190 } 191 FX_BOOL FX_File_Copy(FX_WSTR fileNameSrc, FX_WSTR fileNameDst) 192 { 193 return FX_File_Copy(FX_UTF8Encode(fileNameSrc), FX_UTF8Encode(fileNameDst)); 194 } 195 FX_BOOL FX_File_Move(FX_BSTR fileNameSrc, FX_BSTR fileNameDst) 196 { 197 return rename(fileNameSrc.GetCStr(), fileNameDst.GetCStr()); 198 } 199 FX_BOOL FX_File_Move(FX_WSTR fileNameSrc, FX_WSTR fileNameDst) 200 { 201 return FX_File_Move(FX_UTF8Encode(fileNameSrc), FX_UTF8Encode(fileNameDst)); 202 } 203 #endif 204
