| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef CORE_INCLUDE_FXCRT_FX_STREAM_H_ |
| #define CORE_INCLUDE_FXCRT_FX_STREAM_H_ |
| |
| #include "fx_string.h" |
| |
| void* FX_OpenFolder(const FX_CHAR* path); |
| void* FX_OpenFolder(const FX_WCHAR* path); |
| FX_BOOL FX_GetNextFile(void* handle, |
| CFX_ByteString& filename, |
| FX_BOOL& bFolder); |
| FX_BOOL FX_GetNextFile(void* handle, |
| CFX_WideString& filename, |
| FX_BOOL& bFolder); |
| void FX_CloseFolder(void* handle); |
| FX_WCHAR FX_GetFolderSeparator(); |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ |
| #define FX_FILESIZE int32_t |
| #else |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <sys/stat.h> |
| #ifndef O_BINARY |
| #define O_BINARY 0 |
| #endif |
| #ifndef O_LARGEFILE |
| #define O_LARGEFILE 0 |
| #endif |
| #define FX_FILESIZE off_t |
| #endif |
| #define FX_GETBYTEOFFSET32(a) 0 |
| #define FX_GETBYTEOFFSET40(a) 0 |
| #define FX_GETBYTEOFFSET48(a) 0 |
| #define FX_GETBYTEOFFSET56(a) 0 |
| #define FX_GETBYTEOFFSET24(a) ((uint8_t)(a >> 24)) |
| #define FX_GETBYTEOFFSET16(a) ((uint8_t)(a >> 16)) |
| #define FX_GETBYTEOFFSET8(a) ((uint8_t)(a >> 8)) |
| #define FX_GETBYTEOFFSET0(a) ((uint8_t)(a)) |
| #define FX_FILEMODE_Write 0 |
| #define FX_FILEMODE_ReadOnly 1 |
| #define FX_FILEMODE_Truncate 2 |
| FX_BOOL FX_File_Exist(const CFX_ByteStringC& fileName); |
| FX_BOOL FX_File_Exist(const CFX_WideStringC& fileName); |
| FX_BOOL FX_File_Delete(const CFX_ByteStringC& fileName); |
| FX_BOOL FX_File_Delete(const CFX_WideStringC& fileName); |
| FX_BOOL FX_File_Copy(const CFX_ByteStringC& fileNameSrc, |
| const CFX_ByteStringC& fileNameDst); |
| FX_BOOL FX_File_Copy(const CFX_WideStringC& fileNameSrc, |
| const CFX_WideStringC& fileNameDst); |
| FX_BOOL FX_File_Move(const CFX_ByteStringC& fileNameSrc, |
| const CFX_ByteStringC& fileNameDst); |
| FX_BOOL FX_File_Move(const CFX_WideStringC& fileNameSrc, |
| const CFX_WideStringC& fileNameDst); |
| class IFX_StreamWrite { |
| public: |
| virtual ~IFX_StreamWrite() {} |
| virtual void Release() = 0; |
| |
| virtual FX_BOOL WriteBlock(const void* pData, size_t size) = 0; |
| }; |
| class IFX_FileWrite : public IFX_StreamWrite { |
| public: |
| virtual void Release() = 0; |
| |
| virtual FX_FILESIZE GetSize() = 0; |
| |
| virtual FX_BOOL Flush() = 0; |
| |
| virtual FX_BOOL WriteBlock(const void* pData, |
| FX_FILESIZE offset, |
| size_t size) = 0; |
| virtual FX_BOOL WriteBlock(const void* pData, size_t size) { |
| return WriteBlock(pData, GetSize(), size); |
| } |
| }; |
| class IFX_StreamRead { |
| public: |
| virtual ~IFX_StreamRead() {} |
| |
| virtual void Release() = 0; |
| |
| virtual FX_BOOL IsEOF() = 0; |
| |
| virtual FX_FILESIZE GetPosition() = 0; |
| |
| virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
| }; |
| class IFX_FileRead : IFX_StreamRead { |
| public: |
| virtual void Release() = 0; |
| |
| virtual FX_FILESIZE GetSize() = 0; |
| |
| virtual FX_BOOL IsEOF() { return FALSE; } |
| |
| virtual FX_FILESIZE GetPosition() { return 0; } |
| |
| virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; |
| |
| virtual size_t ReadBlock(void* buffer, size_t size) { return 0; } |
| }; |
| IFX_FileRead* FX_CreateFileRead(const FX_CHAR* filename); |
| IFX_FileRead* FX_CreateFileRead(const FX_WCHAR* filename); |
| class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite { |
| public: |
| virtual IFX_FileStream* Retain() = 0; |
| |
| virtual void Release() = 0; |
| |
| virtual FX_FILESIZE GetSize() = 0; |
| |
| virtual FX_BOOL IsEOF() = 0; |
| |
| virtual FX_FILESIZE GetPosition() = 0; |
| |
| virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; |
| |
| virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
| |
| virtual FX_BOOL WriteBlock(const void* buffer, |
| FX_FILESIZE offset, |
| size_t size) = 0; |
| virtual FX_BOOL WriteBlock(const void* buffer, size_t size) { |
| return WriteBlock(buffer, GetSize(), size); |
| } |
| |
| virtual FX_BOOL Flush() = 0; |
| }; |
| IFX_FileStream* FX_CreateFileStream(const FX_CHAR* filename, FX_DWORD dwModes); |
| IFX_FileStream* FX_CreateFileStream(const FX_WCHAR* filename, FX_DWORD dwModes); |
| class IFX_MemoryStream : public IFX_FileStream { |
| public: |
| virtual FX_BOOL IsConsecutive() const = 0; |
| |
| virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) = 0; |
| |
| virtual uint8_t* GetBuffer() const = 0; |
| |
| virtual void AttachBuffer(uint8_t* pBuffer, |
| size_t nSize, |
| FX_BOOL bTakeOver = FALSE) = 0; |
| |
| virtual void DetachBuffer() = 0; |
| }; |
| IFX_MemoryStream* FX_CreateMemoryStream(uint8_t* pBuffer, |
| size_t nSize, |
| FX_BOOL bTakeOver = FALSE); |
| IFX_MemoryStream* FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE); |
| class IFX_BufferRead : public IFX_StreamRead { |
| public: |
| virtual void Release() = 0; |
| |
| virtual FX_BOOL IsEOF() = 0; |
| |
| virtual FX_FILESIZE GetPosition() = 0; |
| |
| virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
| |
| virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0; |
| |
| virtual const uint8_t* GetBlockBuffer() = 0; |
| |
| virtual size_t GetBlockSize() = 0; |
| |
| virtual FX_FILESIZE GetBlockOffset() = 0; |
| }; |
| |
| #endif // CORE_INCLUDE_FXCRT_FX_STREAM_H_ |