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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 | 6 |
| 7 #ifndef _FX_STREAM_H_ | 7 #ifndef _FX_STREAM_H_ |
| 8 #define _FX_STREAM_H_ | 8 #define _FX_STREAM_H_ |
| 9 #ifndef _FX_MEMORY_H_ | 9 #ifndef _FX_MEMORY_H_ |
| 10 #include "fx_memory.h" | 10 #include "fx_memory.h" |
| 11 #endif | 11 #endif |
| 12 void* FX_OpenFolder(FX_LPCSTR path); | 12 void* FX_OpenFolder(FX_LPCSTR path); |
| 13 void* FX_OpenFolder(FX_LPCWSTR path); | 13 void* FX_OpenFolder(FX_LPCWSTR path); |
| 14 FX_BOOL FX_GetNextFile(void* handle, CFX_ByteString& filename, FX_BOOL& bFolder)
; | 14 FX_BOOL FX_GetNextFile(void* handle, |
| 15 FX_BOOL FX_GetNextFile(void* handle, CFX_WideString& filename, FX_BOOL& bFolder)
; | 15 CFX_ByteString& filename, |
| 16 FX_BOOL& bFolder); |
| 17 FX_BOOL FX_GetNextFile(void* handle, |
| 18 CFX_WideString& filename, |
| 19 FX_BOOL& bFolder); |
| 16 void FX_CloseFolder(void* handle); | 20 void FX_CloseFolder(void* handle); |
| 17 FX_WCHAR FX_GetFolderSeparator(); | 21 FX_WCHAR FX_GetFolderSeparator(); |
| 18 FX_DEFINEHANDLE(FX_HFILE) | 22 FX_DEFINEHANDLE(FX_HFILE) |
| 19 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | 23 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ |
| 20 #define FX_FILESIZE» » » FX_INT32 | 24 #define FX_FILESIZE FX_INT32 |
| 21 #else | 25 #else |
| 22 #include <fcntl.h> | 26 #include <fcntl.h> |
| 23 #include <unistd.h> | 27 #include <unistd.h> |
| 24 #include <sys/stat.h> | 28 #include <sys/stat.h> |
| 25 #ifndef O_BINARY | 29 #ifndef O_BINARY |
| 26 #define O_BINARY » » 0 | 30 #define O_BINARY 0 |
| 27 #endif | 31 #endif |
| 28 #ifndef O_LARGEFILE | 32 #ifndef O_LARGEFILE |
| 29 #define O_LARGEFILE» » 0 | 33 #define O_LARGEFILE 0 |
| 30 #endif | 34 #endif |
| 31 #define FX_FILESIZE» » » off_t | 35 #define FX_FILESIZE off_t |
| 32 #endif | 36 #endif |
| 33 typedef base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE; | 37 typedef base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE; |
| 34 #define FX_GETBYTEOFFSET32(a)» 0 | 38 #define FX_GETBYTEOFFSET32(a) 0 |
| 35 #define FX_GETBYTEOFFSET40(a)» 0 | 39 #define FX_GETBYTEOFFSET40(a) 0 |
| 36 #define FX_GETBYTEOFFSET48(a)» 0 | 40 #define FX_GETBYTEOFFSET48(a) 0 |
| 37 #define FX_GETBYTEOFFSET56(a)» 0 | 41 #define FX_GETBYTEOFFSET56(a) 0 |
| 38 #define FX_GETBYTEOFFSET24(a) ((FX_BYTE)(a>>24)) | 42 #define FX_GETBYTEOFFSET24(a) ((FX_BYTE)(a >> 24)) |
| 39 #define FX_GETBYTEOFFSET16(a) ((FX_BYTE)(a>>16)) | 43 #define FX_GETBYTEOFFSET16(a) ((FX_BYTE)(a >> 16)) |
| 40 #define FX_GETBYTEOFFSET8(a) ((FX_BYTE)(a>>8)) | 44 #define FX_GETBYTEOFFSET8(a) ((FX_BYTE)(a >> 8)) |
| 41 #define FX_GETBYTEOFFSET0(a) ((FX_BYTE)(a)) | 45 #define FX_GETBYTEOFFSET0(a) ((FX_BYTE)(a)) |
| 42 #define FX_FILEMODE_Write» » 0 | 46 #define FX_FILEMODE_Write 0 |
| 43 #define FX_FILEMODE_ReadOnly» 1 | 47 #define FX_FILEMODE_ReadOnly 1 |
| 44 #define FX_FILEMODE_Truncate» 2 | 48 #define FX_FILEMODE_Truncate 2 |
| 45 FX_HFILE» FX_File_Open(FX_BSTR fileName, FX_DWORD dwMode); | 49 FX_HFILE FX_File_Open(FX_BSTR fileName, FX_DWORD dwMode); |
| 46 FX_HFILE» FX_File_Open(FX_WSTR fileName, FX_DWORD dwMode); | 50 FX_HFILE FX_File_Open(FX_WSTR fileName, FX_DWORD dwMode); |
| 47 void» » FX_File_Close(FX_HFILE hFile); | 51 void FX_File_Close(FX_HFILE hFile); |
| 48 FX_FILESIZE» FX_File_GetSize(FX_HFILE hFile); | 52 FX_FILESIZE FX_File_GetSize(FX_HFILE hFile); |
| 49 FX_FILESIZE» FX_File_GetPosition(FX_HFILE hFile); | 53 FX_FILESIZE FX_File_GetPosition(FX_HFILE hFile); |
| 50 FX_FILESIZE» FX_File_SetPosition(FX_HFILE hFile, FX_FILESIZE pos); | 54 FX_FILESIZE FX_File_SetPosition(FX_HFILE hFile, FX_FILESIZE pos); |
| 51 size_t» » FX_File_Read(FX_HFILE hFile, void* pBuffer, size_t szBuffer); | 55 size_t FX_File_Read(FX_HFILE hFile, void* pBuffer, size_t szBuffer); |
| 52 size_t» » FX_File_ReadPos(FX_HFILE hFile, void* pBuffer, size_t szBuffer,
FX_FILESIZE pos); | 56 size_t FX_File_ReadPos(FX_HFILE hFile, |
| 53 size_t» » FX_File_Write(FX_HFILE hFile, const void* pBuffer, size_t szBuff
er); | 57 void* pBuffer, |
| 54 size_t» » FX_File_WritePos(FX_HFILE hFile, const void* pBuffer, size_t szB
uffer, FX_FILESIZE pos); | 58 size_t szBuffer, |
| 55 FX_BOOL»» FX_File_Flush(FX_HFILE hFile); | 59 FX_FILESIZE pos); |
| 56 FX_BOOL»» FX_File_Truncate(FX_HFILE hFile, FX_FILESIZE szFile); | 60 size_t FX_File_Write(FX_HFILE hFile, const void* pBuffer, size_t szBuffer); |
| 57 FX_BOOL»» FX_File_Exist(FX_BSTR fileName); | 61 size_t FX_File_WritePos(FX_HFILE hFile, |
| 58 FX_BOOL»» FX_File_Exist(FX_WSTR fileName); | 62 const void* pBuffer, |
| 59 FX_BOOL»» FX_File_Delete(FX_BSTR fileName); | 63 size_t szBuffer, |
| 60 FX_BOOL»» FX_File_Delete(FX_WSTR fileName); | 64 FX_FILESIZE pos); |
| 61 FX_BOOL»» FX_File_Copy(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); | 65 FX_BOOL FX_File_Flush(FX_HFILE hFile); |
| 62 FX_BOOL»» FX_File_Copy(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); | 66 FX_BOOL FX_File_Truncate(FX_HFILE hFile, FX_FILESIZE szFile); |
| 63 FX_BOOL»» FX_File_Move(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); | 67 FX_BOOL FX_File_Exist(FX_BSTR fileName); |
| 64 FX_BOOL»» FX_File_Move(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); | 68 FX_BOOL FX_File_Exist(FX_WSTR fileName); |
| 65 class IFX_StreamWrite | 69 FX_BOOL FX_File_Delete(FX_BSTR fileName); |
| 66 { | 70 FX_BOOL FX_File_Delete(FX_WSTR fileName); |
| 67 public: | 71 FX_BOOL FX_File_Copy(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); |
| 72 FX_BOOL FX_File_Copy(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); |
| 73 FX_BOOL FX_File_Move(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); |
| 74 FX_BOOL FX_File_Move(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); |
| 75 class IFX_StreamWrite { |
| 76 public: |
| 77 virtual void Release() = 0; |
| 68 | 78 |
| 69 virtual void» » Release() = 0; | 79 virtual FX_BOOL WriteBlock(const void* pData, size_t size) = 0; |
| 80 }; |
| 81 class IFX_FileWrite : public IFX_StreamWrite { |
| 82 public: |
| 83 virtual void Release() = 0; |
| 70 | 84 |
| 71 virtual» FX_BOOL»» WriteBlock(const void* pData, size_t size) = 0; | 85 virtual FX_FILESIZE GetSize() = 0; |
| 72 }; | |
| 73 class IFX_FileWrite : public IFX_StreamWrite | |
| 74 { | |
| 75 public: | |
| 76 | 86 |
| 77 virtual void» » » Release() = 0; | 87 virtual FX_BOOL Flush() = 0; |
| 78 | 88 |
| 79 virtual FX_FILESIZE»» GetSize() = 0; | 89 virtual FX_BOOL WriteBlock(const void* pData, |
| 80 | 90 FX_FILESIZE offset, |
| 81 virtual FX_BOOL» » » Flush() = 0; | 91 size_t size) = 0; |
| 82 | 92 virtual FX_BOOL WriteBlock(const void* pData, size_t size) { |
| 83 virtual» FX_BOOL»» » WriteBlock(const void* pData, FX_FILESIZ
E offset, size_t size) = 0; | 93 return WriteBlock(pData, GetSize(), size); |
| 84 virtual» FX_BOOL»» » WriteBlock(const void* pData, size_t siz
e) | 94 } |
| 85 { | |
| 86 return WriteBlock(pData, GetSize(), size); | |
| 87 } | |
| 88 }; | 95 }; |
| 89 IFX_FileWrite* FX_CreateFileWrite(FX_LPCSTR filename); | 96 IFX_FileWrite* FX_CreateFileWrite(FX_LPCSTR filename); |
| 90 IFX_FileWrite* FX_CreateFileWrite(FX_LPCWSTR filename); | 97 IFX_FileWrite* FX_CreateFileWrite(FX_LPCWSTR filename); |
| 91 class IFX_StreamRead | 98 class IFX_StreamRead { |
| 92 { | 99 public: |
| 93 public: | 100 virtual void Release() = 0; |
| 94 | 101 |
| 95 virtual void» » » Release() = 0; | 102 virtual FX_BOOL IsEOF() = 0; |
| 96 | 103 |
| 97 virtual FX_BOOL» » » IsEOF() = 0; | 104 virtual FX_FILESIZE GetPosition() = 0; |
| 98 | 105 |
| 99 virtual FX_FILESIZE»» GetPosition() = 0; | 106 virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
| 107 }; |
| 108 class IFX_FileRead : IFX_StreamRead { |
| 109 public: |
| 110 virtual void Release() = 0; |
| 100 | 111 |
| 101 virtual size_t» » » ReadBlock(void* buffer, size_t size) = 0
; | 112 virtual FX_FILESIZE GetSize() = 0; |
| 102 }; | |
| 103 class IFX_FileRead : IFX_StreamRead | |
| 104 { | |
| 105 public: | |
| 106 | 113 |
| 107 virtual void» » » Release() = 0; | 114 virtual FX_BOOL IsEOF() { return FALSE; } |
| 108 | 115 |
| 109 virtual FX_FILESIZE»» GetSize() = 0; | 116 virtual FX_FILESIZE GetPosition() { return 0; } |
| 110 | 117 |
| 111 virtual FX_BOOL» » » IsEOF() | 118 virtual FX_BOOL SetRange(FX_FILESIZE offset, FX_FILESIZE size) { |
| 112 { | 119 return FALSE; |
| 113 return FALSE; | 120 } |
| 114 } | |
| 115 | 121 |
| 116 virtual FX_FILESIZE»» GetPosition() | 122 virtual void ClearRange() {} |
| 117 { | |
| 118 return 0; | |
| 119 } | |
| 120 | 123 |
| 121 virtual FX_BOOL» » » SetRange(FX_FILESIZE offset, FX_FILESIZE
size) | 124 virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; |
| 122 { | |
| 123 return FALSE; | |
| 124 } | |
| 125 | 125 |
| 126 virtual void» » » ClearRange() {} | 126 virtual size_t ReadBlock(void* buffer, size_t size) { return 0; } |
| 127 | |
| 128 virtual FX_BOOL» » » ReadBlock(void* buffer, FX_FILESIZE offs
et, size_t size) = 0; | |
| 129 | |
| 130 virtual size_t» » » ReadBlock(void* buffer, size_t size) | |
| 131 { | |
| 132 return 0; | |
| 133 } | |
| 134 }; | 127 }; |
| 135 IFX_FileRead* FX_CreateFileRead(FX_LPCSTR filename); | 128 IFX_FileRead* FX_CreateFileRead(FX_LPCSTR filename); |
| 136 IFX_FileRead* FX_CreateFileRead(FX_LPCWSTR filename); | 129 IFX_FileRead* FX_CreateFileRead(FX_LPCWSTR filename); |
| 137 class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite | 130 class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite { |
| 138 { | 131 public: |
| 139 public: | 132 virtual IFX_FileStream* Retain() = 0; |
| 140 | 133 |
| 141 virtual IFX_FileStream*» » Retain() = 0; | 134 virtual void Release() = 0; |
| 142 | 135 |
| 143 virtual void» » » » Release() = 0; | 136 virtual FX_FILESIZE GetSize() = 0; |
| 144 | 137 |
| 145 virtual FX_FILESIZE»» » GetSize() = 0; | 138 virtual FX_BOOL IsEOF() = 0; |
| 146 | 139 |
| 147 virtual FX_BOOL» » » » IsEOF() = 0; | 140 virtual FX_FILESIZE GetPosition() = 0; |
| 148 | 141 |
| 149 virtual FX_FILESIZE»» » GetPosition() = 0; | 142 virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; |
| 150 | 143 |
| 151 virtual FX_BOOL» » » » ReadBlock(void* buffer, FX_FILES
IZE offset, size_t size) = 0; | 144 virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
| 152 | 145 |
| 153 virtual size_t» » » » ReadBlock(void* buffer, size_t s
ize) = 0; | 146 virtual FX_BOOL WriteBlock(const void* buffer, |
| 147 FX_FILESIZE offset, |
| 148 size_t size) = 0; |
| 149 virtual FX_BOOL WriteBlock(const void* buffer, size_t size) { |
| 150 return WriteBlock(buffer, GetSize(), size); |
| 151 } |
| 154 | 152 |
| 155 virtual» FX_BOOL»» » » WriteBlock(const void* buffer, F
X_FILESIZE offset, size_t size) = 0; | 153 virtual FX_BOOL Flush() = 0; |
| 156 virtual» FX_BOOL»» » » WriteBlock(const void* buffer, s
ize_t size) | 154 }; |
| 157 { | 155 IFX_FileStream* FX_CreateFileStream(FX_LPCSTR filename, FX_DWORD dwModes); |
| 158 return WriteBlock(buffer, GetSize(), size); | 156 IFX_FileStream* FX_CreateFileStream(FX_LPCWSTR filename, FX_DWORD dwModes); |
| 159 } | 157 class IFX_MemoryStream : public IFX_FileStream { |
| 158 public: |
| 159 virtual FX_BOOL IsConsecutive() const = 0; |
| 160 | 160 |
| 161 virtual FX_BOOL» » » » Flush() = 0; | 161 virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) = 0; |
| 162 |
| 163 virtual FX_LPBYTE GetBuffer() const = 0; |
| 164 |
| 165 virtual void AttachBuffer(FX_LPBYTE pBuffer, |
| 166 size_t nSize, |
| 167 FX_BOOL bTakeOver = FALSE) = 0; |
| 168 |
| 169 virtual void DetachBuffer() = 0; |
| 162 }; | 170 }; |
| 163 IFX_FileStream*»» FX_CreateFileStream(FX_LPCSTR filename, FX_DWORD dwModes
); | 171 IFX_MemoryStream* FX_CreateMemoryStream(FX_LPBYTE pBuffer, |
| 164 IFX_FileStream*»» FX_CreateFileStream(FX_LPCWSTR filename, FX_DWORD dwMode
s); | 172 size_t nSize, |
| 165 class IFX_MemoryStream : public IFX_FileStream | 173 FX_BOOL bTakeOver = FALSE); |
| 166 { | 174 IFX_MemoryStream* FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE); |
| 167 public: | 175 class IFX_BufferRead : public IFX_StreamRead { |
| 176 public: |
| 177 virtual void Release() = 0; |
| 168 | 178 |
| 169 virtual FX_BOOL» » » IsConsecutive() const = 0; | 179 virtual FX_BOOL IsEOF() = 0; |
| 170 | 180 |
| 171 virtual void» » » EstimateSize(size_t nInitSize, size_t nG
rowSize) = 0; | 181 virtual FX_FILESIZE GetPosition() = 0; |
| 172 | 182 |
| 173 virtual FX_LPBYTE» » GetBuffer() const = 0; | 183 virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
| 174 | 184 |
| 175 virtual void» » » AttachBuffer(FX_LPBYTE pBuffer, size_t n
Size, FX_BOOL bTakeOver = FALSE) = 0; | 185 virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0; |
| 176 | 186 |
| 177 virtual void» » » DetachBuffer() = 0; | 187 virtual FX_LPCBYTE GetBlockBuffer() = 0; |
| 178 }; | |
| 179 IFX_MemoryStream*» FX_CreateMemoryStream(FX_LPBYTE pBuffer, size_t nSize, F
X_BOOL bTakeOver = FALSE); | |
| 180 IFX_MemoryStream*» FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE); | |
| 181 class IFX_BufferRead : public IFX_StreamRead | |
| 182 { | |
| 183 public: | |
| 184 | 188 |
| 185 virtual void» » » Release() = 0; | 189 virtual size_t GetBlockSize() = 0; |
| 186 | 190 |
| 187 virtual FX_BOOL» » » IsEOF() = 0; | 191 virtual FX_FILESIZE GetBlockOffset() = 0; |
| 188 | |
| 189 virtual FX_FILESIZE»» GetPosition() = 0; | |
| 190 | |
| 191 virtual size_t» » » ReadBlock(void* buffer, size_t size) = 0
; | |
| 192 | |
| 193 virtual FX_BOOL» » » ReadNextBlock(FX_BOOL bRestart = FALSE)
= 0; | |
| 194 | |
| 195 virtual FX_LPCBYTE» » GetBlockBuffer() = 0; | |
| 196 | |
| 197 virtual size_t» » » GetBlockSize() = 0; | |
| 198 | |
| 199 virtual FX_FILESIZE»» GetBlockOffset() = 0; | |
| 200 }; | 192 }; |
| 201 #endif | 193 #endif |
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